33 results on '"Civil engineering works"'
Search Results
2. Estimating the Contribution of Various Construction Materials on Construction Waste Generation Onsite in South Eastern Nigeria
- Author
-
M. E. Onyia and C. U. Aroh
- Subjects
Waste generation ,urbanization ,construction materials ,civil engineering works ,environmental pollution ,Science - Abstract
There are many challenges arising from the generation of construction waste onsite, chief of them are environmental pollution and material loss. A number of factors can lead to the generation of construction waste. Hence, the objective of this paper was to ascertain the construction material that leads greatest onsite generation of construction waste in Nigeria using structured questionnaire to gather data from primary source by surveying fourteen most common construction materials. Results obtained revealed that timber, ceramic tiles and mortar ranked 1st , 2nd and 3rd with standard deviation of 1.14, 1.156 and 1.265; while roofing sheets, PVC water pipes and paint contributed the least 12th, 13th and 14th with a standard deviation of 1.115, 1.222 and 1.095 respectively.
- Published
- 2024
3. Engineering geological 3D modeling and geotechnical characterization in the framework of technical rules for geotechnical design: the case study of the Nola’s logistic plant (southern Italy)
- Author
-
Petrone, P., Allocca, V., Fusco, F., Incontri, P., and De Vita, P.
- Abstract
In the design and construction of buildings and infrastructures, the reconstruction of a reliable 3D engineering geological model is an essential step to optimize costs of the construction and limit risks from failure or damage due to unforeseen ground conditions. The modeling of ground conditions is a challenging issue to be tackled especially in the case of geological units with complex geometries and spatially variable geotechnical properties. In such a direction, coupled geological and geotechnical criteria are usually adopted to define engineering geological units. These concepts are considered by the current technical rules for geotechnical design such as the Eurocode 7 and in the national regulations which have followed it, known in Italy as “Norme Tecniche per le Costruzioni (NTC).” Notwithstanding this advanced regulatory framework, no comprehensive indications on methodological approaches were given for the 3D engineering geological modeling and geotechnical characterization of a design and construction site. In this paper, the case study of the highly heterogeneous and heteropic pyroclastic-alluvial stratigraphic setting of the Nola plain (Campania, southern Italy) characterizing the site of the Nola’s logistic plant is dealt with. The approaches are based on the engineering geological modeling analysis of a high number of stratigraphic, laboratory and in situ geotechnical data, collected for the design of the plant, and the use of a specialized modeling software providing advanced capabilities in spatial modeling of geological and geotechnical information, as well as in their visual representation. The results obtained, including also the analysis of statistical variability of geotechnical properties and the identification of representative geotechnical values, can be potentially considered a methodological approach, consistent with the current technical rules for geotechnical design as well as with fundamental concepts of engineering geological modeling and mapping. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Deep Foundations Case Histories in the East Coast of United States
- Author
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Mabnkbadi, Raymond R., Ramakrishna, Aravinda M., Shehata, Hany Farouk, Editor-in-chief, ElZahaby, Khalid M., Advisory editor, Chen, Dar Hao, Advisory editor, Abu-Farsakh, Murad, editor, Alshibli, Khalid, editor, and Puppala, Anand, editor
- Published
- 2018
- Full Text
- View/download PDF
5. Engineering geological 3D modeling and geotechnical characterization in the framework of technical rules for geotechnical design: the case study of the Nola’s logistic plant (southern Italy)
- Author
-
P. Petrone, V. Allocca, F. Fusco, P. Incontri, P. De Vita, Petrone, P., Allocca, V., Fusco, F., Incontri, P., and De Vita, P.
- Subjects
Engineering geology ,Civil engineering works ,Geology ,Geotechnical Engineering and Engineering Geology ,Complex stratigraphic setting ,Engineering geology, 3D modeling, Complex stratigraphic setting, Civil engineering works ,3D modeling - Abstract
In the design and construction of buildings and infrastructures, the reconstruction of a reliable 3D engineering geological model is an essential step to optimize costs of the construction and limit risks from failure or damage due to unforeseen ground conditions. The modeling of ground conditions is a challenging issue to be tackled especially in the case of geological units with complex geometries and spatially variable geotechnical properties. In such a direction, coupled geological and geotechnical criteria are usually adopted to define engineering geological units.These concepts are considered by the current technical rules for geotechnical design such as the Eurocode 7 and in the national regulations which have followed it, known in Italy as “Norme Tecniche per le Costruzioni (NTC).” Notwithstanding this advanced regulatory framework, no comprehensive indications on methodological approaches were given for the 3D engineering geological modeling and geotechnical characterization of a design and construction site. In this paper, the case study of the highly heterogeneous and heteropic pyroclastic-alluvial stratigraphic setting of the Nola plain (Campania, southern Italy) characterizing the site of the Nola’s logistic plant is dealt with. The approaches are based on the engineering geological modeling analysis of a high number of stratigraphic, laboratory and in situ geotechnical data, collected for the design of the plant, and the use of a specialized modeling software providing advanced capabilities in spatial modeling of geological and geotechnical information, as well as in their visual representation. The results obtained, including also the analysis of statistical variability of geotechnical properties and the identification of representative geotechnical values, can be potentially considered a methodological approach, consistent with the current technical rules for geotechnical design as well as with fundamental concepts of engineering geological modeling and mapping.
- Published
- 2023
6. Klimatpåverkansberäkningar för stabilitetshöjande åtgärder : Utgåva 1 - Rekommendationer för kvalitetssäkring och resultatredovisning
- Abstract
I takt med ett förändrat klimat med mer nederbörd kan risk för ras, sked och erosion öka i vissa delar av Sverige. Då är det nödvändigt att vidta stabilitetshöjande åtgärder med hänsyn till teknisk möjlighet, ekonomisk rimlighet och även andra hållbarhetsfaktorer. Utöver stabilitetskrav och projektkostnader bör geotekniker och berörda aktörer ta hänsyn till bland annat klimat- och miljöpåverkan som stabilitetshöjande åtgärder medför ur ett livscykelperspektiv. I beaktande av Sveriges klimatmål bör klimatpåverkan från stabilitetshöjande åtgärdsprojekt beräknas och minskas redan i tidiga planeringsskeden. Resultat av väl genomförda klimatberäkningar kan användas som beslutstöd för minskning av växthusgasutsläpp som stabilitetshöjande åtgärdsprojekt ger upphov till. Resultatkvalitet av en klimatberäkning kan påverkas av ett flertal faktorer, såsom indata (både projektspecifika resursanvändningsdata och klimatdata av resurser) och avgränsning av klimatberäkningen. Därför är det nödvändigt för berörda aktörer i klimatarbetet att få en bra förståelse för kvalitetssäkring av klimatberäkningar samt för nyttan med att beräkningsresultat redovisas på ett så transparent sätt som möjligt. Denna vägledning innehåller generella rekommendationer för resultatredovisning av klimatberäkningar för stabilitetshöjande åtgärder utifrån ISO- och europastandarder. Syftet med vägledningen är att förbättra beräkningsresultatens kvalitet, öka transparensen i beräkningsunderlag och beräkningsprocessen, och underlätta kommunikation mellan olika aktörer. Rekommendationerna kan utgöra en grund vid upprättande, resultatredovisning samt kvalitetsgranskning av klimatberäkningar, oavsett vilket beräkningsverktyg som används. Målgruppen är främst konsulter, projekterande entreprenörer, myndigheter och kommuner i samband med planering, projektering och genomförande av stabilitetshöjande åtgärder.
- Published
- 2022
7. Klimatpåverkansberäkningar för stabilitetshöjande åtgärder : Utgåva 1 - Rekommendationer för kvalitetssäkring och resultatredovisning
- Abstract
I takt med ett förändrat klimat med mer nederbörd kan risk för ras, sked och erosion öka i vissa delar av Sverige. Då är det nödvändigt att vidta stabilitetshöjande åtgärder med hänsyn till teknisk möjlighet, ekonomisk rimlighet och även andra hållbarhetsfaktorer. Utöver stabilitetskrav och projektkostnader bör geotekniker och berörda aktörer ta hänsyn till bland annat klimat- och miljöpåverkan som stabilitetshöjande åtgärder medför ur ett livscykelperspektiv. I beaktande av Sveriges klimatmål bör klimatpåverkan från stabilitetshöjande åtgärdsprojekt beräknas och minskas redan i tidiga planeringsskeden. Resultat av väl genomförda klimatberäkningar kan användas som beslutstöd för minskning av växthusgasutsläpp som stabilitetshöjande åtgärdsprojekt ger upphov till. Resultatkvalitet av en klimatberäkning kan påverkas av ett flertal faktorer, såsom indata (både projektspecifika resursanvändningsdata och klimatdata av resurser) och avgränsning av klimatberäkningen. Därför är det nödvändigt för berörda aktörer i klimatarbetet att få en bra förståelse för kvalitetssäkring av klimatberäkningar samt för nyttan med att beräkningsresultat redovisas på ett så transparent sätt som möjligt. Denna vägledning innehåller generella rekommendationer för resultatredovisning av klimatberäkningar för stabilitetshöjande åtgärder utifrån ISO- och europastandarder. Syftet med vägledningen är att förbättra beräkningsresultatens kvalitet, öka transparensen i beräkningsunderlag och beräkningsprocessen, och underlätta kommunikation mellan olika aktörer. Rekommendationerna kan utgöra en grund vid upprättande, resultatredovisning samt kvalitetsgranskning av klimatberäkningar, oavsett vilket beräkningsverktyg som används. Målgruppen är främst konsulter, projekterande entreprenörer, myndigheter och kommuner i samband med planering, projektering och genomförande av stabilitetshöjande åtgärder.
- Published
- 2022
8. ULOGA GRAĐEVINSKOG INŽENJERA U SPRJEČAVANJU KRIZA.
- Author
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Zlatović, Sonja and Pavlić, Ivana
- Abstract
Copyright of International Conference: Crisis Management Days is the property of University of Applied Sciences Velika Gorica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
9. The Oosterschelde estuary, a case-study of a changing ecosystem: an introduction
- Author
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Nienhuis, P. H., Smaal, A. C., Dumont, H. J., editor, Nienhuis, P. H., editor, and Smaal, A. C., editor
- Published
- 1994
- Full Text
- View/download PDF
10. Sustainability in infrastructure construction - on the transferability of assessment concepts for buildings to civil engineering works / Nachhaltigkeit im Infrastrukturbau - Zur Übertragbarkeit von Bewertungskonzepten für Gebäude auf den Tiefbau
- Author
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Maydl, Peter
- Subjects
- *
SUSTAINABLE construction , *CONSTRUCTION , *INFRASTRUCTURE (Economics) , *ARCHITECTURE & energy conservation , *CIVIL engineering - Abstract
The trend to sustainable construction in the building sector has greatly increased in recent years. In certain segments of the market (e.g. office and retail properties), building certificates are essential marketing aids and are having an increasing effect on competition, with questions of energy efficiency and interior air quality being of particular significance. A comprehensive series of European standards is now available, which also include a harmonised assessment concept. In infrastructure construction, this development has mostly been reflected in the estimation of lifecycle costs, durability and maintenance costs in bridge building and the recycling of material excavated from tunnels. The new EU construction products regulation has required since 01/07/2013 the recyclability and durability of structures (i.e. buildings and infrastructure works) as well as the use of environmentally compatible raw materials and secondary materials. This paper investigates the question, whether and to what extent the assessment concepts and methods that have been developed can be applied to the design of civil engineering works, as is currently under discussion by the technical committee CEN/TC 350 'Sustainability of construction works'. Der Trend zum nachhaltigen Bauen hat in den letzten Jahren im Hochbau stark zugenommen. In bestimmten Marktsegmenten (z. B. Büro- und Handelsimmobilien) sind Gebäudezertifikate unentbehrliche Vermarktungshilfen, die zunehmend den Wettbewerb beeinflussen, wobei oft Fragen der Energieeffizienz oder der Raumluftqualität im Vordergrund stehen. Mittlerweile steht ein umfassendes europäisches Regelwerk zur Verfügung, das auch ein harmonisiertes Bewertungskonzept umfasst. Im Infrastrukturbau konzentriert sich diese Entwicklung vor allem auf die Abschätzung von Lebenszykluskosten, Dauerhaftigkeit und Instandhaltungsaufwand im Brückenbau oder auf die Verwertung von Tunnelausbruch. Die neue EU-Bauprodukteverordnung fordert seit 01.07.2013 die Rezyklierbarkeit und Dauerhaftigkeit von Bauwerken (also Gebäude und Infrastrukturbauten) sowie die Verwendung von umweltverträglichen Rohstoffen und Sekundärbaustoffen. Der vorliegende Beitrag geht der Frage nach, ob und in welchem Ausmaß die zwischenzeitlich entwickelten Bewertungskonzepte und Ansatzpunkte für die Planung auf den Tiefbau übertragen werden können, wie dies gegenwärtig auch im CEN/TC 350 'Sustainability of construction works' diskutiert wird. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
11. Revision of the Eurocodes – aspects of geotechnical and rock engineering design
- Author
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Lamas, L., Nuijten, G., Boley, C., Burbaum, U., Feinendegen, M., Harrison, J. P., Johansson, E., Labiouse, V., Migliazza, M. R., Olsson, R., Poisel, R., Segalini, A., Stille, Håkan, Virely, D., Walter, H., Lamas, L., Nuijten, G., Boley, C., Burbaum, U., Feinendegen, M., Harrison, J. P., Johansson, E., Labiouse, V., Migliazza, M. R., Olsson, R., Poisel, R., Segalini, A., Stille, Håkan, Virely, D., and Walter, H.
- Abstract
The Structural Eurocodes (EN 199x) are a suite of European standards for the design of buildings and civil engineering works, published in 2006 by the European Committee for Standardization (CEN) and with implementation starting in 2010. EN 1990 sets the basis of structural design, with the other Eurocodes dealing with different materials and specific aspects of the design; Eurocode 7 (EN 1997) deals with geotechnical aspects. In 2010, CEN began a process of evolving the Eurocodes in order to incorporate improvements that reflect the state-of-the-art in engineering design and the needs of the civil engineering market; to improve the ease-of-use of the standards; and to harmonize practice between countries. The existing EN 1990 is founded on limit state concepts, and reliability of design is provided mainly by a semi-probabilistic method based on partial factors. Applying the same method to geotechnical design has proved to be difficult, and the revised EN 1990 will present improvements concerning geotechnical design. Reflecting these changes, the title of EN 1990 was changed to “Basis of structural and geotechnical design”. Although initially developed for structures involving soils, Eurocode 7 is also applicable to rock engineering design. A major target of the current revision is that the code should treat soil and rock on an equal basis. The evolution of the Eurocode 7 has been accompanied by a group of rock engineering experts working under CEN, who started their activity in 2011. The paper is authored by the current members of this group and presents the situation of the revision of Eurocode 7 in October 2019, namely: the main objectives of the revision; the new structure adopted for the code, with three parts, and the implementation schedule of the revised Eurocodes; the main changes implemented so far in geotechnical design and rock engineering; the main rock engineering aspects still needing to be addressed., QC 20230328
- Published
- 2020
12. A Predictive Map of Compression- Sensitivity of the Dutch Archaeological Soil Archive.
- Author
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de Lange, G, Bakr, M, Gunnink, J L, and Huisman, D J
- Subjects
- *
ARCHAEOLOGY , *SOIL science , *RAILROADS , *CONSTRUCTION , *PETROLOGY , *CULTURAL property , *PSYCHOLOGICAL vulnerability - Abstract
Weak soils like unconsolidated clay and peat may deform and compress considerably by loading, for example, by sand bodies for roads and railways. Archaeological sites within such easily compressible soil layers may therefore be heavily affected by different kinds of construction works. The vulnerability of archaeological sites to compression is largely dependent on soil properties like lithology, grain-size, and previous loading history. This may therefore differ considerably. Predicting the compression sensitivity is of great value for planners, since they can estimate in which areas in situ protection of archaeological sites may be feasible and where it would require (costly) technical measures or plan adaptations. As part of the Cultural Heritage Agency's research programme on construction and archaeology, we prepared predictive maps of the compression sensitivity of the subsurface sediments in the Netherlands for 1 m depth intervals from 0 to 20 m depth. The maps were constructed using a full 3-D model of the subsurface of the Netherlands. In combination with the Indicative Map of Archaeological Values (IKAW) that is already available, these maps can be used to better estimate the technical measures needed and costs involved for in situ protection of archaeological sites in the planning phase of construction projects. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
13. A comparative study of ICTAD 1989 and ICTAD 2002 standard conditions of contract for building and civil engineering works
- Author
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R. Rameezdeen, R. Shiyamasuntharan, R. Rameezdeen, and R. Shiyamasuntharan
- Abstract
The standard forms of contract are prepared with the intention of allocating and standardizing the rights and obligations of the contracting parties and providing guidance to proper management of project objectives. Thus, the standard forms of contract play a dominant legal and management role in construction projects. This holds the fact that standard forms of contract should promote good project management. The significant attributes of a good management of contract are; clear definition and fair allocation of rights and obligations of the contracting parties, well-emphasized time, cost and quality control, and clear boundaries to the powers of the Engineer. The drafting of standard forms of contract should therefore address the above attributes to ensure good project management. In Sri Lanka, standard forms of contract for construction are published by the Institute for Construction Training and Development (ICTAD). The first version of the standard form of contract was prepared in 1986 and revised in 1989. After many years of practical experience it has been reviewed and a new edition was published in January 2002. This paper examines the content of both editions and provides a comparison of the features of project management. The 2002 edition promotes good management of contract by having a proactive approach compared to the reactive approach in the 1989 edition. However, the two documents do not differ significantly in terms of how they deal with project management attributes.
- Published
- 2019
14. Life Cycle Assessment of Civil Engineering Works : And Application of European Standards on the Mälar Project
- Author
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Eriksson, Malin and Eriksson, Malin
- Abstract
In this thesis, a framework is constructed for a life cycle assessment within a civilengineering project. There are various methods available on how to conduct lifecycle assessments and this thesis explores one method related to civil engineeringworks. The assessment follows the structure based in related standards such asEN 15804 which describes how to declare construction products. A working copyof a possible upcoming European level standard for sustainability assessment ofcivil engineering works is also used in the process. The object of assessment arethe materials, concrete and steel, in the retaining walls that are constructed alongthe channel near Södertälje Harbour. This is a part of a larger project, called theMälar Project.The life cycle of these type of constructions often stretches over long periodsof time which leaves a lot of uncertainties while estimating the impacts during thelater life stages. The research problem is much about how to handle the differentmodules of the life cycle regarding civil engineering works.Example data were collected and presented for each module of the life stage.The results of the example data showed that most of the impact came from theproduct stage. The conclusions are that the collection of data should be an integratedpart in the operating procedures for the company for a more efficientprocess, Environmental Product Declarations are a good source of data and standardson European level gives good guidelines on how to conduct a life cycleassessment for civil engineering projects., I detta examensarbete konstrueras ett ramverk för hur en livscykelanalys kan utförasinom väg- och vattenbyggnad. Det finns många olika riktlinjer för hur enlivscykelanalys kan utföras och i detta examensarbete utforskas en metod för projektinom väg- och vattenbyggnad. Arbetet följer strukturen ur EN 15804 sombeskriver hur man bedömer byggprodukter. Ett arbetsexemplar av en ny, möjligstandard på Europanivå för miljöbedömning av projekt inom väg- och vatten användsockså i processen. Det som bedöms via livscykelanalys i denna studie är deingående materialen, stål och betong, i hållväggarna som byggs längs med kanalenvid Södertälje Hamn. Detta är en del av ett större projekt, kallat Mälarprojektet.Livscyklerna för denna typ av projekt är oftast väldigt långa vilket skapar enosäkerhet i data då påverkan för senare delar av livscykeln behöver uppskattas.Problematiken som presenteras handlar mycket om hur modulerna för livscykelnska behandlas för denna typ av projekt.Exempeldata samlades in för de olika modulerna och presenterades i tabellersom täcker alla relevanta delar av livscykeln. Resultatet av exempeldatan visadeatt den mesta påverkan kom från produktstadiet. De slutsatser som dras är attinsamlingen av data bör vara en integrerad del av företagets arbetsmetod fören effektiv process, miljödeklarationer är en bra källa till data och standards påEuropanivå ger bra guidelinjer för hur en livscykelanalys kan utföras för liknandeprojekt.
- Published
- 2019
15. Greenhouse gas emissions from high-speed rail infrastructure construction in Korea.
- Author
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Lee, Jae-Young, Lee, Cheul-Kyu, and Chun, Yoon-Young
- Subjects
- *
HIGH speed trains , *GREENHOUSE gases , *CIVIL engineering , *TELECOMMUNICATION systems , *TUNNEL design & construction , *TELECOMMUNICATION satellites - Abstract
• Greenhouse gas emissions from the construction phase of Korean high-speed rail (HSR) infrastructure were estimated. • Approximately 92% of the total GHG emissions resulted from the use of materials, an indirect source. • GHG emissions from the civil-engineering works comprised a considerable amount of the entire HSR line construction. This study presents an estimation of greenhouse gas (GHG) emissions at the construction phase of a high-speed rail (HSR) line infrastructure from Osong to Gwangju (Korea), which became operational in 2015. The total GHG emissions were approximately 3.7 MtCO 2 -equivalents (CO 2 eq.), of which an approximately 92% originated from the use of materials, an indirect source. More specifically, this study quantified GHG emissions from construction modules covering earthworks, civil engineering activities (such as the construction of tunnels, viaducts, and bridges), railway tracks, passenger stations, and energy transmission and telecommunication systems for the entire HSR lines while identifying the key activity to each module. This study also includes an analytical study of dependency between GHG emissions and civil engineering works. Such an assessment initiative regarding GHG emissions generated from the construction of the HSR line infrastructure in Korea is the first on its own. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
16. Model for the implementation of the concept 'life cycle of the project' according to the pmi in civil engineering works of a public nature
- Author
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Ríos Cifuentes, Harly Jimendy and León Reyes, Freddy
- Subjects
Civil Engineering Works ,OBRAS PUBLICAS ,FUNCION PUBLICA ,Project Life Cycle ,Public Function ,Obras de ingenieria ,Función Pública ,Fases ,ELABORACION DE PROYECTOS ,phases ,Ciclo de Vida del proyecto - Abstract
El presente el articulo muestra la importancia de implementar en las obras de ingeniería de la función pública, el concepto de Ciclo de vida de proyectos tal como lo establece el PMI, para mejorar las condiciones de ejecución de los proyectos de infraestructura y crear cierres que no generen investigaciones, por sobre costos, adiciones y ampliación de tiempos no justificados. Los proyectos en su momento de gestación deben tener claro la gestión del alcance, tiempo, costos, calidad, recursos humanos, comunicaciones, riesgos, adquisiciones, interesados, y la planeación de ejecución. El documento presenta, paso a paso, el ciclo de vida de los proyectos de Obra Civil o Infraestructura en la función pública, en donde se analiza las entradas y salidas en cada una de sus fases y también los interesados en cada una de ellas, con este modelo se busca ayudar a los municipios de bajos recursos como son los municipios de 5 y 6 categoría, en la ejecución de proyectos sin tener que evadir los requisitos para la realización de los proyectos exitosos en generación de empleo, disminución de costos administrativos y riesgo cero en ejecución y obras inconclusas. The present article shows the importance of implementing in the engineering works of the public function, the concept of Life Cycle of projects as established PMI, to improve the conditions of execution of the infrastructure projects and create closures that do not generate Public investigations about over costs, additions and extension of unjustified times. The projects in their time of gestation must have a clear management of scope, time, costs, quality, human resources, communications, risks, procurement, stakeholders and the implementation planning. This document shows, step by step, the life cycle of engineer and Infrastructure projects in the public function, where the inputs and outputs are analyzed in each of their phases and also the stakeholders in each one of the process, this model try to seek help for low-income municipalities such as municipalities of 5th and 6th category in the execution of projects without having to evade the requirements for successful projects in employment generation, reduction of administrative costs and risk Zero in execution and unfinished works.
- Published
- 2016
17. A Predictive Map of Compression- Sensitivity of the Dutch Archaeological Soil Archive
- Author
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M. Bakr, D J Huisman, J.L. Gunnink, and G. de Lange
- Subjects
Archeology ,Peat ,Lithology ,Earth & Environment ,Energy / Geological Survey Netherlands ,Compression ,Vulnerability ,Geological Survey Netherlands ,Plan (archaeology) ,Conservation ,Archaeology ,Cultural heritage ,Civil engineering works ,GM - Geomodelling ,Soil water ,Soil horizon ,Sensitivity (control systems) ,Compression (geology) ,EELS - Earth, Environmental and Life Sciences ,Geosciences ,Geology ,The netherlands - Abstract
Weak soils like unconsolidated clay and peat may deform and compress considerably by loading, for example, by sand bodies for roads and railways. Archaeological sites within such easily compressible soil layers may therefore be heavily affected by different kinds of construction works. The vulnerability of archaeological sites to compression is largely dependent on soil properties like lithology, grain-size, and previous loading history. This may therefore differ considerably. Predicting the compression sensitivity is of great value for planners, since they can estimate in which areas in situ protection of archaeological sites may be feasible and where it would require (costly) technical measures or plan adaptations. As part of the Cultural Heritage Agency's research programme on construction and archaeology, we prepared predictive maps of the compression sensitivity of the subsurface sediments in the Netherlands for 1 m depth intervals from 0 to 20 m depth. The maps were constructed using a full 3-D model of the subsurface of the Netherlands. In combination with the Indicative Map of Archaeological Values (IKAW) that is already available, these maps can be used to better estimate the technical measures needed and costs involved for in situ protection of archaeological sites in the planning phase of construction projects. © W. S. Maney & Son Ltd 2012.
- Published
- 2012
- Full Text
- View/download PDF
18. Corrosion detection and evolution monitoring in Reinforced Concrete Structures by the use of Fiber Bragg Grating sensor
- Author
-
S. Ali-Alvarez, R. P. Nogueira, P. Ferdinand, S. Magne, Laboratoire Capteurs Fibres Optiques (LCFO), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Jerome Peter Lynch, Chung-Bang Yun, Kon-Well Wang, Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Optical fiber ,Materials science ,Concrete construction ,Maintenance ,0211 other engineering and technologies ,Rebar ,020101 civil engineering ,02 engineering and technology ,Fiber bragg grating sensor ,0201 civil engineering ,Corrosion ,law.invention ,Fiber Bragg grating ,law ,021105 building & construction ,Concretes ,Fiber Bragg gratings ,Optical fibers ,Civil engineering ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Electrolytic solution ,instrumentation ,Structural health monitoring ,business.industry ,Sensors ,Structural engineering ,Fiber Bragg Grating Sensors ,Reinforced concrete ,Concrete buildings ,[SPI.GCIV]Engineering Sciences [physics]/Civil Engineering ,Civil engineering works ,[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic ,Condition-based maintenance ,Corrosion of reinforced bars ,Structural health monitoring (SHM) ,business ,Corrosion measurements - Abstract
Conference of 2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 ; Conference Date: 10 March 2013 Through 14 March 2013; Conference Code:97276; International audience; Corrosion of reinforced bar (rebar) in concrete structures represents a major issue in civil engineering works, being its detection and evolution a challenge for the applied research. In this work, we present a new methodology to corrosion detection in reinforced concrete structures, by combining Fiber Bragg Grating (FBG) sensors with the electrochemical and physical properties of rebar in a simplified assembly. Tests in electrolytic solutions and concrete were performed for pitting and general corrosion. The proposed Structural Health Monitoring (SHM) methodology constitutes a direct corrosion measurement potentially useful to implement or improve Condition-Based Maintenance (CBM) program for civil engineering concrete structures.
- Published
- 2013
- Full Text
- View/download PDF
19. A predictive map of compression- Sensitivity of the dutch archaeological soil archive
- Subjects
Civil engineering works ,GM - Geomodelling ,Earth & Environment ,Energy / Geological Survey Netherlands ,Compression ,Vulnerability ,Geological Survey Netherlands ,Environmental and Life Sciences ,Geosciences ,EELS - Earth ,The netherlands - Abstract
Weak soils like unconsolidated clay and peat may deform and compress considerably by loading, for example, by sand bodies for roads and railways. Archaeological sites within such easily compressible soil layers may therefore be heavily affected by different kinds of construction works. The vulnerability of archaeological sites to compression is largely dependent on soil properties like lithology, grain-size, and previous loading history. This may therefore differ considerably. Predicting the compression sensitivity is of great value for planners, since they can estimate in which areas in situ protection of archaeological sites may be feasible and where it would require (costly) technical measures or plan adaptations. As part of the Cultural Heritage Agency's research programme on construction and archaeology, we prepared predictive maps of the compression sensitivity of the subsurface sediments in the Netherlands for 1 m depth intervals from 0 to 20 m depth. The maps were constructed using a full 3-D model of the subsurface of the Netherlands. In combination with the Indicative Map of Archaeological Values (IKAW) that is already available, these maps can be used to better estimate the technical measures needed and costs involved for in situ protection of archaeological sites in the planning phase of construction projects. © W. S. Maney & Son Ltd 2012.
- Published
- 2012
20. Importance of risk management in highway and railway constructions
- Author
-
Rozsypal, Alexandr
- Subjects
monitoring ,geotechnical risk ,risk manager ,undesirable event ,risk management ,civil engineering works ,failure ,risk - Abstract
The paper focuses on the role and importance of the risk management during construction of highways and railways. For this purpose the engineering riskn will be defined. The main principles of geotechnical risk will be explained. Some cases stories of undesirables events during construction of underground works will be presented and discussed. In the conclusion author will underlines main conditions of succesfull risk management principles to be respected.
- Published
- 2010
21. Ecological Engineering and Civil Engineering works
- Subjects
road infrastructure ,ecological engineering ,coastal management ,civil engineering works - Abstract
This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing number and increase in size of civil engineering works and the growing need for protection measures of the sandy coasts have led to an ever increasing risk of adverse effects on the nature and landscape of the Netherlands, as well as to an increase in the degree of the impact of these effects. Consequently, such institutions as the Road and Hydraulic Engineering Institute (Dienst Weg- en Waterbouwkunde - DWW -) of the Directorate General of Public Works and Water Management (Rijkswaterstaat) of the Ministry of Transport, Public Works and Water Management have carried out extensive studies of possible adverse effects. Based on these studies were carried out of measures intended to prevent adverse effects, to avoid their impact and to mitigate and/or to compensate for them (i.e. to take measures elsewhere in order to bring about a no net loss of nature values), apart from measures that can produce positive effects. From a scientific point of view as well as of the interest of society it is important to pay attention to the possibilities for better inserting civil engineering work (e.g. construction and use of infrastructure and such activities as coastal management) into ecosystems in order to conserve and develop biodiversity. In this thesis the results of conducted research as well as outsources studies are presented in the form of a synthesis. In this context, the focus has been on integrating knowledge concerning the understanding, use and control of patterns and processes of ecosystems into the planning, the design, construction and maintenance of civil engineering works. Special attention was paid to roads, waterways, road verges, slopes, banks and bridges and viaducts related to the main infrastructure. Much attention is paid not only to the results of the research, but also to integrating the knowledge and understanding developed, in combination with other studies in the same field carried out under the responsibility of the Regional Directorates of Rijkswaterstaat. This thesis was realized in the authors capacity as head (later, former head) of the research section of the environment department of the Road and Hydraulic Engineering Institute and nowadays as coordinator of research into environmental measures for infrastructure; as part-time staff member at the Delft Interfaculty Research Centre for the Sustainable Constructed Environment, especially the research programme 'The Ecological City'; and later as part-time researcher/lecturer at the Faculty of Civil Engineering and Geosciences of the Delft University of Technology. This thesis discusses applied research, which incorporated original research work intended to extend the available knowledge and especially to solve clearly defined practical problems, which in this thesis are considered in their integral context as much as possible. The main research questions, which have been subdivided into subquestions, were in which fields and by which means contributions can be made to reduce adverse effects or to increase the ecological significance of civil engineering works, both existing ones and those to be constructed. Studies have also been made whether it would be possible to formulate on the basis of the research results a set of ecological engineering principles to be used in actual practice. In addition to the systematic collection, analysis and evaluation of data using the available methods and technology in the relevant research fields, research was carried out into the possibilities of creating a synthesis - a combination of not only monofunctional but also multifunctional (interdisciplinary) solutions, since the latter are expected to lead to a larger degree of sustainable development of our actions. Ecological engineering can play an important role in this context. This thesis includes a summary of the knowledge and understanding of the application of ecological engineering in the field of the integration of roads and road systems and natural patterns and processes, the significance of road verges as habitats for plants and animals, the fragmenting effect of roads and the possibilities to adopt mitigating measures, the insertion of roads into the landscape and the management of sandy coasts. The thesis gives also insight into the way the responsibility for environmental and ecological issues in relation to the primary tasks of Rijkswaterstaat has developed within the organisation. This thesis highlights some of the important aspects referred to above concerning motorways and nature, environment and landscape. For aspects about environmental impact assessments (EIA) and motorways, reference is made to the thesis by dr. E.J.J.M. Arts, productgroup leader tracé at the Road and Hydraulic Engineering Institute and as far as the subject compensation is concerned, to the soon to be published thesis written by drs. R. Cuperus, productgroup leader nature and landscape at the Road and Hydraulic Engineering Institute. For the fields of noise and roads and air and roads, reference is made to both existing literature and to upcoming publications within the scope of the ongoing 'Noise Innovation Programme' contracted to the DWW and the recently launched 'Airquality Innovation Programme'.
- Published
- 2004
22. Ecological Engineering and Civil Engineering works
- Author
-
Van Bohemen, H.D. and Hendriks, Ch.F.
- Subjects
road infrastructure ,ecological engineering ,coastal management ,civil engineering works - Abstract
This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing number and increase in size of civil engineering works and the growing need for protection measures of the sandy coasts have led to an ever increasing risk of adverse effects on the nature and landscape of the Netherlands, as well as to an increase in the degree of the impact of these effects. Consequently, such institutions as the Road and Hydraulic Engineering Institute (Dienst Weg- en Waterbouwkunde - DWW -) of the Directorate General of Public Works and Water Management (Rijkswaterstaat) of the Ministry of Transport, Public Works and Water Management have carried out extensive studies of possible adverse effects. Based on these studies were carried out of measures intended to prevent adverse effects, to avoid their impact and to mitigate and/or to compensate for them (i.e. to take measures elsewhere in order to bring about a no net loss of nature values), apart from measures that can produce positive effects. From a scientific point of view as well as of the interest of society it is important to pay attention to the possibilities for better inserting civil engineering work (e.g. construction and use of infrastructure and such activities as coastal management) into ecosystems in order to conserve and develop biodiversity. In this thesis the results of conducted research as well as outsources studies are presented in the form of a synthesis. In this context, the focus has been on integrating knowledge concerning the understanding, use and control of patterns and processes of ecosystems into the planning, the design, construction and maintenance of civil engineering works. Special attention was paid to roads, waterways, road verges, slopes, banks and bridges and viaducts related to the main infrastructure. Much attention is paid not only to the results of the research, but also to integrating the knowledge and understanding developed, in combination with other studies in the same field carried out under the responsibility of the Regional Directorates of Rijkswaterstaat. This thesis was realized in the authors capacity as head (later, former head) of the research section of the environment department of the Road and Hydraulic Engineering Institute and nowadays as coordinator of research into environmental measures for infrastructure; as part-time staff member at the Delft Interfaculty Research Centre for the Sustainable Constructed Environment, especially the research programme 'The Ecological City'; and later as part-time researcher/lecturer at the Faculty of Civil Engineering and Geosciences of the Delft University of Technology. This thesis discusses applied research, which incorporated original research work intended to extend the available knowledge and especially to solve clearly defined practical problems, which in this thesis are considered in their integral context as much as possible. The main research questions, which have been subdivided into subquestions, were in which fields and by which means contributions can be made to reduce adverse effects or to increase the ecological significance of civil engineering works, both existing ones and those to be constructed. Studies have also been made whether it would be possible to formulate on the basis of the research results a set of ecological engineering principles to be used in actual practice. In addition to the systematic collection, analysis and evaluation of data using the available methods and technology in the relevant research fields, research was carried out into the possibilities of creating a synthesis - a combination of not only monofunctional but also multifunctional (interdisciplinary) solutions, since the latter are expected to lead to a larger degree of sustainable development of our actions. Ecological engineering can play an important role in this context. This thesis includes a summary of the knowledge and understanding of the application of ecological engineering in the field of the integration of roads and road systems and natural patterns and processes, the significance of road verges as habitats for plants and animals, the fragmenting effect of roads and the possibilities to adopt mitigating measures, the insertion of roads into the landscape and the management of sandy coasts. The thesis gives also insight into the way the responsibility for environmental and ecological issues in relation to the primary tasks of Rijkswaterstaat has developed within the organisation. This thesis highlights some of the important aspects referred to above concerning motorways and nature, environment and landscape. For aspects about environmental impact assessments (EIA) and motorways, reference is made to the thesis by dr. E.J.J.M. Arts, productgroup leader tracé at the Road and Hydraulic Engineering Institute and as far as the subject compensation is concerned, to the soon to be published thesis written by drs. R. Cuperus, productgroup leader nature and landscape at the Road and Hydraulic Engineering Institute. For the fields of noise and roads and air and roads, reference is made to both existing literature and to upcoming publications within the scope of the ongoing 'Noise Innovation Programme' contracted to the DWW and the recently launched 'Airquality Innovation Programme'.
- Published
- 2004
23. Ecological Engineering and Civil Engineering works
- Author
-
Van Bohemen, H.D. (author) and Van Bohemen, H.D. (author)
- Abstract
This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing number and increase in size of civil engineering works and the growing need for protection measures of the sandy coasts have led to an ever increasing risk of adverse effects on the nature and landscape of the Netherlands, as well as to an increase in the degree of the impact of these effects. Consequently, such institutions as the Road and Hydraulic Engineering Institute (Dienst Weg- en Waterbouwkunde - DWW -) of the Directorate General of Public Works and Water Management (Rijkswaterstaat) of the Ministry of Transport, Public Works and Water Management have carried out extensive studies of possible adverse effects. Based on these studies were carried out of measures intended to prevent adverse effects, to avoid their impact and to mitigate and/or to compensate for them (i.e. to take measures elsewhere in order to bring about a no net loss of nature values), apart from measures that can produce positive effects. From a scientific point of view as well as of the interest of society it is important to pay attention to the possibilities for better inserting civil engineering work (e.g. construction and use of infrastructure and such activities as coastal management) into ecosystems in order to conserve and develop biodiversity. In this thesis the results of conducted research as well as outsources studies are presented in the form of a synthesis. In this context, the focus has been on integrating knowledge concerning the understanding, use and control of patterns and processes of ecosystems into the planning, the design, construction and maintenance of civil engineering works. Special attention was paid to roads, waterways, road verges, slopes, banks and bridges and viaduc, Civil Engineering and Geosciences
- Published
- 2004
24. FIRE AND THE CIVIL ENGINEER
- Author
-
R F Legget and G W Shorter
- Subjects
ouvrage de génie civil ,Fallacy ,Engineering ,fire safety ,Incendie ,business.industry ,design ,Fire prevention ,General Medicine ,Commission ,Minor (academic) ,Building design ,Fire ,sécurité incendie ,feu (incendie) ,Work (electrical) ,Order (business) ,Fire protection ,Forensic engineering ,génie civil ,conception (design) ,business ,civil engineering ,civil engineering works - Abstract
Annual losses of life and property due to fire continue to be an economic drain on all developed countries. The steady improvement in building regulations and their administration is assisting the work of fire protection in those branches of building design that are normally the province of the architect. Civil engineers do not always have such assistance available. The works they design might appear to be free from all risk of fire. Examples are cited from Canadian experience to show the fallacy of this view. The facts in these cases are summarized, not with critical intent, but in order to draw from them confirmation of the precautions that should always be taken in the design, maintenance and construction of civil engineering works. With changing design concepts for buildings, the civil engineer is having to give increased attention to fire as a factor in his contributions to building design. This work must always be viewed against the background of the basic economics of fire prevention measures, final decisions always involving some degree of calculated risk., Reprinted from: Proceedings of the Institution of Civil Engineers, 1971, 50, December, p. 467-486, ISSN: 0020-3262; and Discussion, 1972, 52, August, p. 189-201.
- Published
- 1971
- Full Text
- View/download PDF
25. Stavební zakázka a současná hospodářská situace
- Author
-
Puchýř, Bohumil, Beránková, Martina, Šumichrastová, Ivana, Puchýř, Bohumil, Beránková, Martina, and Šumichrastová, Ivana
- Abstract
Cieľom bakalárskej práce je zmapovanie súčasnej hospodárskej situácie a jej vplyv na stavebníctvo na Slovensku a Česku v krízových rokoch. Ďalšou časťou je zanalyzovanie vybraného stavebného podniku v kritickom období. Cieľom je zistiť, aký dopad mala hospodárska kríza a následný ekonomický vývoj na podnik a navrhnúť prípadné opatrenia na obmedzenie nepriaznivých javov., The aim of my bachelor thesis is to map the current economic situation and its influence on construction in Slovakia and Czech Republic during the crisis. The other part is the analysis of a particular construction firm in critical times. The aim is to find out the outcomes of crisis and consecutive economic progress in that particular construction firm. I will try suggestive measures which would prevent negative outcomes.
26. Stavební zakázka a současná hospodářská situace
- Author
-
Puchýř, Bohumil, Beránková, Martina, Puchýř, Bohumil, and Beránková, Martina
- Abstract
Cieľom bakalárskej práce je zmapovanie súčasnej hospodárskej situácie a jej vplyv na stavebníctvo na Slovensku a Česku v krízových rokoch. Ďalšou časťou je zanalyzovanie vybraného stavebného podniku v kritickom období. Cieľom je zistiť, aký dopad mala hospodárska kríza a následný ekonomický vývoj na podnik a navrhnúť prípadné opatrenia na obmedzenie nepriaznivých javov., The aim of my bachelor thesis is to map the current economic situation and its influence on construction in Slovakia and Czech Republic during the crisis. The other part is the analysis of a particular construction firm in critical times. The aim is to find out the outcomes of crisis and consecutive economic progress in that particular construction firm. I will try suggestive measures which would prevent negative outcomes.
27. Stavební zakázka a současná hospodářská situace
- Author
-
Puchýř, Bohumil, Beránková, Martina, Puchýř, Bohumil, and Beránková, Martina
- Abstract
Cieľom bakalárskej práce je zmapovanie súčasnej hospodárskej situácie a jej vplyv na stavebníctvo na Slovensku a Česku v krízových rokoch. Ďalšou časťou je zanalyzovanie vybraného stavebného podniku v kritickom období. Cieľom je zistiť, aký dopad mala hospodárska kríza a následný ekonomický vývoj na podnik a navrhnúť prípadné opatrenia na obmedzenie nepriaznivých javov., The aim of my bachelor thesis is to map the current economic situation and its influence on construction in Slovakia and Czech Republic during the crisis. The other part is the analysis of a particular construction firm in critical times. The aim is to find out the outcomes of crisis and consecutive economic progress in that particular construction firm. I will try suggestive measures which would prevent negative outcomes.
28. Stavební zakázka a současná hospodářská situace
- Author
-
Puchýř, Bohumil, Beránková, Martina, Puchýř, Bohumil, and Beránková, Martina
- Abstract
Cieľom bakalárskej práce je zmapovanie súčasnej hospodárskej situácie a jej vplyv na stavebníctvo na Slovensku a Česku v krízových rokoch. Ďalšou časťou je zanalyzovanie vybraného stavebného podniku v kritickom období. Cieľom je zistiť, aký dopad mala hospodárska kríza a následný ekonomický vývoj na podnik a navrhnúť prípadné opatrenia na obmedzenie nepriaznivých javov., The aim of my bachelor thesis is to map the current economic situation and its influence on construction in Slovakia and Czech Republic during the crisis. The other part is the analysis of a particular construction firm in critical times. The aim is to find out the outcomes of crisis and consecutive economic progress in that particular construction firm. I will try suggestive measures which would prevent negative outcomes.
29. Stavební zakázka a současná hospodářská situace
- Author
-
Puchýř, Bohumil, Beránková, Martina, Šumichrastová, Ivana, Puchýř, Bohumil, Beránková, Martina, and Šumichrastová, Ivana
- Abstract
Cieľom bakalárskej práce je zmapovanie súčasnej hospodárskej situácie a jej vplyv na stavebníctvo na Slovensku a Česku v krízových rokoch. Ďalšou časťou je zanalyzovanie vybraného stavebného podniku v kritickom období. Cieľom je zistiť, aký dopad mala hospodárska kríza a následný ekonomický vývoj na podnik a navrhnúť prípadné opatrenia na obmedzenie nepriaznivých javov., The aim of my bachelor thesis is to map the current economic situation and its influence on construction in Slovakia and Czech Republic during the crisis. The other part is the analysis of a particular construction firm in critical times. The aim is to find out the outcomes of crisis and consecutive economic progress in that particular construction firm. I will try suggestive measures which would prevent negative outcomes.
30. Frost action and foundations
- Author
-
Penner, E. and Crawford, C. B.
- Subjects
frost susceptibility of earth materials ,gel (froid) ,Sol ,climat ,freezing during construction ,roads, runways, ice rinks ,ouvrage de genie civil ,frost heaving ,seasonal frost penetration ,Permafrost ,foisonnement par le gel ,Pergelisol ,building foundations ,travaux de fondation ,climates ,Sous-sol et fondations ,Soils ,frost ,thaw settlement ,Basements and foundations ,ground thermal regime ,foundation work ,climate ,civil engineering works ,construction activities - Abstract
The relationship between climate, seasonal frost penetration and permafrost is discussed in relation to construction activities. The nature of the ground thermal regime, the mechanism of frost heaving, and the criteria for frost susceptibility of earth materials are outlined. Practical examples related to the design and construction of building foundations, roads, runways and ice rinks are described and problems of freezing during construction activities and thaw settlement of the ground are reviewed., 27th Annual University of Minnesota Soil Mechanics and Foundation Engineering Conf.: 1979-02, Minnesota, Minneapolis, USA
- Published
- 1983
31. Instructions for the design of townsites, factories, buildings and structures in the northern construction-climatic zone
- Author
-
National Research Council of Canada. Division of Building Research
- Subjects
ouvrage de génie civil ,sol ,design ,industrial facilities ,conception ,installation industrielle ,pergélisol ,soils ,buildings ,bâtiment ,permafrost ,civil engineering works - Abstract
The instructions or guidelines presented in this translation outline factors to be considered in the planning and design of townsites and engineering facilities in the "Northern Construction - Climatic Zone" or permafrost region. Included are sections on buildings (residential, public and industrial), services (water, sewerage, heat, gas), hydro- electric plants (concrete and earth- and rock-fill dams), railroads and highways and gas pipelines.
- Published
- 1972
- Full Text
- View/download PDF
32. Ice pressures on structures : a Canadian problem
- Author
-
Legget, R. F. and Gold, L. W.
- Subjects
ice loads ,ouvrage de genie civil ,charge de glace ,structure (construction) ,structures (construction) ,civil engineering works - Abstract
A brief summary is presented of the current state of knowledge in Canada, concerning the action of ice on structures. The characteristics of ice covers and questions concerning ice, that must be considered in the design of structures are described., Proceedings of a Conference on Ice Pressures Against Structures: 01 November 1966, Québec, Québec, Canada
- Published
- 1968
33. The quality of monitoring data in civil engineering works
- Author
-
Lucas, A., Palma-Dos-Reis, A., and Mário Caldeira
- Subjects
Monitoring systems ,Civil engineering works ,Sensors ,Data quality dimensions - Abstract
This paper presents the research and discusses the findings concerning the identification and definition of quality dimensions related to the monitoring data obtained in the safety control of major civil engineering works, namely dams and bridges. The analysis of the behavior and the safety evaluation of these works essentially depend on the quality of the data collected by the sensors, named the observation data, besides the quality of the models and, last but not least, the knowledge and experience of the experts involved. In addition, LNEC1 stores and preserves the observation data concerning major civil engineering works, which represents an important research source for LNEC and Universities and, thus, shapes itself as an e-Science scenario. Differently from other e-Science environment authors, we have not restricted our work to objective dimensions, whose measures can be calculated automatically. It appears, from the experts’ opinions, that some subjective dimensions can largely enrich the quality information about archived data at the expense of some additional work in data curation. In the development of this research we used an online version of the Delphi method with the Q-Sort technique, complemented with upstream interviews and a downstream meeting with the experts. We found out, and sorted by the importance level assigned by the experts, ten dimensions for the quality of observation data, which are error-of-observation, coherence, relevancy, interpretability, timeliness, completeness, accessibility, appropriate amount of data, access security and preservation. 3 tabelas CTI/NTIEC 2009 7 e 8 de Novembro
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