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24 results on '"Sarsembayeva, Assel"'

1. Preliminary Assessment of the Bearing Capacity of Soils Using a Geotechnical Database

Author

Zhussupbekov, Askar, Sarsembayeva, Assel, Alibekova, Nurgul, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Beskopylny, Alexey, editor, Shamtsyan, Mark, editor, and Artiukh, Viktor, editor

Published
2023
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4. Heat and Mass Transfer in the Freezing Soils

Author

Sarsembayeva, Assel, Zhussupbekov, Askar, Collins, Philip, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Zhu, Hong-Hu, editor, Garg, Ankit, editor, Zhussupbekov, Askar, editor, and Su, Li-Jun, editor

Published
2022
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5. Evaluation of de-icing chemical and moisture mass transfer in freezing soils

Author

Sarsembayeva, Assel, Collins, P., Zhou, X., and Reading, P.

Subjects
624.1, Freeze-thaw cycles, Vapour transfer in soils
Abstract

Highway subsoils in cold countries are subject to increased thermal conductivity, disruption of natural moisture circulation as well as dynamic loading and application of de-icing chemicals in the winter months. In this work, the moisture mass transfer in a state of vapour flow and the de-icing chemical migration were considered during unidirectional freezing. The moisture mass transfer in a gaseous state was previously widely neglected in the exploration of frost heave. To conduct freeze-thaw cycles with increased lengths of soil samples and a modified slow freezing technique, an environmental chamber of nine samples capacity was designed. Supplying the non-saline samples with either 11 or 22 g/L sodium chloride solution signified chemical mass transport over the sample length and a significant change in temperature-moisture distribution when compared to deionised water supplied test results. The presented conceptual model with vapour mass transfer was based on the thermodynamic equilibrium of vapour density with temperature change and the phase transition to ice during thermal energy withdrawal. Compared to the widely used coupled heat-mass models, the vapour flow based model clearly explained the driving forces and presented a much easier algorithm for calculation. The de-icing chemical displacement was explained as the migration of the dissolved ions together with hygroscopic water transport, which in turn, was driven by cryosuction forces. The reduction of hydraulic conductivity during the secondary salinisation with sodium chloride was caused by chemical osmosis, which tended to equalise the solute concentration in pore water over the sample length. The research outcomes indicate a significant contribution to the future perspectives on frost heave modelling and prognosis. Further research could extend this work by inclusion of the vapour mass transfer in quantitative analysis for soil freezing. The effect of secondary salinisation should be also foreseen in the long term prognosis for highway subsoils exploitation.

Published
2017

7. Bearing Capacity of Precast Concrete Joint Micropile Foundations in Embedded Layers: Predictions from Dynamic and Static Load Tests according to ASTM Standards.

Author

Omarov, Abdulla, Sarsembayeva, Assel, Zhussupbekov, Askar, Nurgozhina, Malika, Tleulenova, Gulshat, Yeleussinova, Akmaral, and Isakulov, Baizak

Subjects
DEAD loads (Mechanics), DYNAMIC loads, COMPRESSION loads, PILES & pile driving, CONCRETE joints
Abstract

In this paper, joint precast piles with a cross-section of 400 × 400 mm and a pin-joined connection were considered, and their interaction with the soil of Western Kazakhstan has been analyzed. The following methods were used: assessment of the bearing capacity using the static compression load test (SCLT by ASTM) method, interpretation of the field test data, and the dynamic loading test (DLT) method for driving precast concrete joint piles, including Pile Driving Analyzer (PDA by ASTM) and Control and Provisioning of Wireless Access Points (CAPWAP) methods. According to the results, the composite piles tested by the PDA (by ASTM) method differ by 15 percent compared to the static load method, while the difference between the dynamic DLT (by ASTM) method and the static load (by ASTM) method was only 7 percent. So, according to the results, the alternative dynamic method DLT (by ASTM) is very effective and more accurate compared to other existing methods. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Design of Conical Foundations with Increased Bearing Capacity in Areas of Undermined Soils.

Author

Zhussupbekov, Askar, Sarsembayeva, Assel, Bazarov, Baurzhan, and Omarov, Abdulla

Subjects
SHALLOW foundations, SOILS, TESTING laboratories, SOIL testing
Abstract

This article discusses the foundations of a conical shape directed with their apex downwards to increase the cross-sectional area and, accordingly, the bearing capacity during settlement and under the influence of horizontal tensile strains in undermined areas. To simulate the deformability of undermined and seismically exposed foundations, a three-dimensional expandable box was manufactured and assembled. Models of a conical foundation with an aperture angle of the cones at 90° and 80° were buried into the soil at 0.75 of its height, in order to provide a safety margin for further loading due to an increase in the bearing area when the cone is immersed deeper into the ground. Laboratory and field tests were performed on the vertical loading of single cones before and after horizontal soil displacement. Numerical modeling of the interaction between soil and foundation was carried out for conical foundation models that were considered for laboratory and field testing using the Plaxis 2D (Version 8.2) program. To compare the bearing capacity, isolated shallow foundations with a diameter equal to the cross section of the conical foundation at the intersection with the ground surface were tested. The isolated shallow foundations lost their bearing capacity after 0.15 kN in laboratory tests and after 75 kN in the field tests, while the ultimate bearing capacity of conical foundations with the similar cross section at the soil surface was not achieved, even after 0.2 kN during laboratory tests with horizontal soil displacement and at a load of 100 kN in field tests. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Development of a Unified Geotechnical Database and Data Processing on the Example of Nur-Sultan City.

Author

Zhussupbekov, Askar, Alibekova, Nurgul, Akhazhanov, Sungat, and Sarsembayeva, Assel

Subjects
ELECTRONIC data processing, MATERIALS, SOIL density, SOIL moisture, GEOLOGICAL surveys, SOIL mechanics
Abstract

Development of a geotechnical database for the young capital of Kazakhstan, Nur-Sultan city, became a paramount concern of both the scientific community and industry. The creation of the Kazakhstan model of the geotechnical database was based on a fixed dataset which included a city map with determined X, Y, and H coordinates and the user generated data obtained from the materials of engineering and geological surveys from more than 2000 boreholes. Based on the assessment of the built-up area of the city, six main engineering-geological elements (EGE) were identified. The territory of the city was regrouped into eight zones instead of the previous six based on the geological origin and stratigraphy interposition of the EGE. Engineering properties of the soils were considered for physical and mechanical characteristics, where the plasticity limits demonstrated an accurate correlation to the elasticity modulus E and distribution boundaries between the alluvial and eluvial types of the soil on the graph. So, the increased liquid and plastic limits are replicated by higher values of elasticity modulus E, and hence better strength characteristics of a particular soil layer and vice versa, while the moisture content and soil density did not show any obvious pattern and requires additional verification on the construction site. Finally, a geotechnical map was built for the driven piles and the optimal variations in the pile length for each zone were determined. [ABSTRACT FROM AUTHOR]

Published
2021
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20. Smart Geotechnics for Smart Societies

Author

Zhussupbekov, Askar, Sarsembayeva, Assel, and Kaliakin, Victor N.

Subjects
Deep Foundations, Earthquake Engineering, Geotechnical Engineering, Rock Engineering, Soil Dynamics, Tunnelling
Abstract

Smart Geotechnics for Smart Societies contains the contributions presented at the 17th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (17th ARC, Astana, Kazakhstan, 14-18 August, 2023). The topics covered include: Geomaterials for soil improvement Tunneling and rock engineering Slope, embankments and dams Shallow and deep foundations Soil dynamics and geotechnical earthquake engineering Geoenvironmental engineering and frost geotechnics Investigation of foundations of historical structures and monitoring Offshore, harbor geotechnics and GeoEnergy Megaprojects and transportation geotechnics Smart Geotechnics for Smart Societies will be of interest to academics and engineers interested or involved in geotechnical engineering.

Published
2023
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22. XV International Scientific Conference “INTERAGROMASH 2022” : Global Precision Ag Innovation 2022, Volume 1

Author

Alexey Beskopylny, Mark Shamtsyan, Viktor Artiukh, Alexey Beskopylny, Mark Shamtsyan, and Viktor Artiukh

Subjects
Manufactures, Computational intelligence, Agriculture
Abstract

The book contains proceedings of the XV International Scientific Conference INTERAGROMASH 2022, Rostov-on-Don, Russia. The agro-industrial complex is the most extensive and vital industry. It is rapidly developing by introducing the latest technologies and automating various processes necessary for the functioning of this area. The book is dedicated to engineering technologies of precision farming and agricultural robotics. It includes studies on natural resources variability, sustainable soil management, Agro Big Data, Internet of Things, software and mobile apps for precision agriculture, smart weather for precision agriculture, simulations models and decision support systems, expert systems, DGPS, soil physical and chemical characteristic sensors, machinery, etc. Different types of agricultural robots are presented in the book: autonomous fruit picking robots, farming bots that can seed and water plants, test the soil and remove weeds, completely autonomous robot for ecological and economical ultra-high precision spraying and weeding, harvesting robots with the special vision systems that can “see” fruits and understand whether they're ripe and ready to pick, and others. Also, the book covers advances in agricultural biotechnology in such areas of research as crop production improvement practices, genetic modification, as well as microbial biotechnology in agriculture, etc. The book is aimed for scientists, researchers, and graduate students. It is also useful for representatives of regional authorities, as it gives an idea of existing high-tech solutions for agriculture. The book is written and edited by international researchers, academics, and experts in the corresponding research areas.

Published
2023

23. Advances in Geoengineering Along the Belt and Road : Proceedings of 1st Belt and Road Webinar Series on Geotechnics, Energy and Environment 2021

Author

Hong-Hu Zhu, Ankit Garg, Askar Zhussupbekov, Li-Jun Su, Hong-Hu Zhu, Ankit Garg, Askar Zhussupbekov, and Li-Jun Su

Subjects
Engineering geology, Geology, Environmental engineering, Biotechnology, Bioremediation
Abstract

This book is a compilation of selected papers from the 1st Belt and Road Webinar Series on Geotechnics, Energy and Environment, March - May 2021. The book comprises selected research related to advances in geo-environmental engineering. Topics covered include rock mechanics, sustainable materials, frozen soils, geotechnical innovations in megacities. The research is related to the sustainable infrastructure development for countries in China's Belt and Road Initiative. The contents of the volume will prove useful to researchers and professionals working in geotechnical and geological engineering domains.

Published
2022

24. Engineering Geology for Society and Territory - Volume 6 : Applied Geology for Major Engineering Projects

Author

Giorgio Lollino, Daniele Giordan, Kurosch Thuro, Carlos Carranza-Torres, Faquan Wu, Paul Marinos, Carlos Delgado, Giorgio Lollino, Daniele Giordan, Kurosch Thuro, Carlos Carranza-Torres, Faquan Wu, Paul Marinos, and Carlos Delgado

Subjects
Engineering geology--Congresses
Abstract

This book is one out of 8 IAEG XII Congress volumes, and deals with the theme of applied geology, which is a critical theme for the global economy. In the international, multidisciplinary approach to major engineering projects (either to macro- or mega-scale), the application of geological investigation techniques is fundamental for properly selecting the location sites, planning the construction and maintaining the infrastructures. The contributions in this book include not only engineering constructions but also case studies related to large projects on geo-resources exploration and extraction (minerals, petroleum and groundwater), energy production (hydropower, geothermal, nuclear and others), transportation (railway and highway) and waste disposal as well as the environmental management of these and other activities. The Engineering Geology for Society and Territory volumes of the IAEG XII Congress held in Torino from September 15-19, 2014, analyze the dynamic role of engineering geology in our changing world and build on the four main themes of the congress: Environment, processes, issues, and approaches. The congress topics and subject areas of the 8 IAEG XII Congress volumes are: 1. Climate Change and Engineering Geology 2. Landslide Processes 3. River Basins, Reservoir Sedimentation and Water Resources 4. Marine and Coastal Processes 5. Urban Geology, Sustainable Planning and Landscape Exploitation 6. Applied Geology for Major Engineering Projects 7. Education, Professional Ethics and Public Recognition of Engineering Geology 8. Preservation of Cultural Heritage.

Published
2014

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