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The paper presents the technical solution for the foundation of the facilities of the Boiler House for the energy utilization of waste and chimneys. Next to the boiler house, the construction of a Bunker for waste storage is planned, which is founded at a depth of 6.0m below the top of the boiler house's base plate. Based on the conditions of limited settlement, the foundation of the boiler house was envisioned on drilled piles, while a hidden pile wall was designed to protect the foundation pit of the bunker, which has the function of preventing large deformations of the boiler house structure and does not jeopardize its stability. Calculations of the bearing capacity of the piles based on the soil parameters from the geotechnical study are presented, as well as the results of the pile tests with axial vertical pressure force.

To date, much research has been conducted in the field of the application of fly ash in road construction. Particular attention is paid to the effects of fly ash on soil stabilization. The results of the research show that self - binding fly ash is an efficient and economical stabilizing material for various applications in construction. The aim of this paper is to investigate the efficiency of stabilization of fine-grained soil with fly ash. This paper presents the results of the laboratory test for stabilization of loess with fly ash, which was conducted in August-September 2021 in the Laboratory for Roads and Geotechnics, at the IMS Institute in Belgrade. The materials used are ash from the heating plant "Energetika" doo. from Kragujevac and loess from the project "Nikola Tesla" airport in Surcin.

In the paper, the analysis of the bearing capacity of the pile and the redistribution of the load on the pile toe and shaft was carried out. The tests were carried out by a static load test (SLT) incrementally increasing the compressive force on the test pile, and the tension force on the anchor piles. The test system consisted of one test pile and two anchor piles with a reaction beam. Two tests were conducted according to the same test program, where the test piles were of the same length, while the length of the anchor piles in the second test was increased. In the first test, the anchor pile failed, while in the second test, the test pile failed. Based on the achieved limit values of settlement of the test and anchor pile, the bearing capacity of the test pile at the toe and shaft was determined. Subsequently, a CPT test was carried out and the bearing capacity was calculated according to the LPC-CPT method.

U radu su prikazane sanacione mere zaštite od odrona na državnom putu IB-23, deonica puta broj 02332, Mijoska – Gostun. Odroni su česta pojava na strmim kosinama koje izgrađuju ispucale stenske mase nakon perioda velikih kiša ili usled otapanja snežnog pokrivača. U maju 2017. i februaru 2022. godine odigrala su se dva velika odrona što je onemogućilo dalje odvijanje saobraćaja na ugroženom putnom pravcu. Prvobitna sanaciona mera 2017 g. i najbrže rešenje u pogledu bezbednog odvijanja saobraćaja bilo je izvođenje armiranobetonskog zida. Trajnje rešenje za zaštitu puta od potencijalnih odrona bilo je izvođenje armiranobetonske galerije nakon odrona 2022. g. Rad se odnosi na povećanje kapaciteta nosivosti i stabilnosti postojećeg potpornog zida za prijem povećanih vertikalnih i horizontalnih uticaja za slučaj da se usvoji AB galerija kao trajnje rešenje zaštite od odrona.

The paper presents uniaxial compressive strength test according to SRPS EN 1926. Uniaxial compressive strength test was performed on 12 identical cube-shaped specimen’s dimensions 70 mm x 70 mm x 70 mm, which are made of sandstone. Samples were brought form Laz tunnel and were divided into two groups of six samples. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of samples consists of 6 samples exposed to standard fire test according to SRPS EN 1363-1, with the intention to test uniaxial compressive strength after standard fire test. The aim of this study was to examine the uniaxial compressive strength of the rock, before and after standard fire test on the rock mass. The paper presents the strengths of the specimens tested before and after standard fire test.

The thermal conductivity of a material is the parameter that is most reliably determined experimentally. The problem of determining the thermal conductivity in the soil is greater because the soil is heterogeneous, so for the same soil this parameter may be different depending on the their ohysical characteristics. Therefore, it is necessary to adopt an appropiate model for describing the thermal conductivity of the soil for a particular location after the necessary tests are performed. This paper is based on experimental measurements of soil thermal conductivity as a function of moisture content in the area of the ,Nikola Tesla Airport construction site in Surčin and the adoption of one of the existing theoretical models that would satisfactorily describe changes in thermal consuctivity. Based on the obtained results of experimental reasearche, a two- parameter fitting of the measured values of thermal conductivity of the soil was performed in Cote-Konrad model, which proves to be reliable and the simplest to describe the thermal properties of loess in the area of Belgrade.

The paper presents uniaxial compressive strength test according to SRPS EN 1926. Uniaxial compressive strength test was performed on 12 identical cube-shaped specimen’s dimensions 70 mm x 70 mm x 70 mm, which are made of sandstone. Samples were brought form Laz tunnel and were divided into two groups of six samples. First group of samples consists of 6 samples tested for uniaxial compressive strength. Second group of samples consists of 6 samples exposed to standard fire test according to SRPS EN 1363-1, with the intention to test uniaxial compressive strength after standard fire test. The aim of this study was to examine the uniaxial compressive strength of the rock, before and after standard fire test on the rock mass. The paper presents the strengths of the specimens tested before and after standard fire test.

Mathematical modeling of engineering materials is important issue in design of structures. Model itself should satisfy two conditions: first to explain in the best way mechanical behavior of material and second to be as simple as possible for easy everyday application in engineering. In the present paper the Preisach model is applied to behaviour of clay as an elasto-plastic material under direct shear test. The clay sample was taken by exploratory drilling on the territory of Šimanovci from a depth of 9.1 m to 9.3 m. First, an experimental examination of a clay sample was performed in order to classify and determine the resistance-deformable characteristics. The clay is classified as CH-clay of high plasticity. The sample was then subjected to direct shear test. All obtained results clearly show advantages of the Preisach model for describing behavior of elasto plastic material. This analytical model allows an accurate computation of all points on the result curve from the direct shear test.

The paper analyses transmission and redistribution of the load from the pile on the soil, with a special focus on these effects regarding the shaft and base of the pile. The test was conducted using the dynamic load test (DLT) by incrementally increasing the kinetic energy of the drop weight impact in several drops. The results of in‒situ DLTs are presented and after the performed signal matching for every impact of the drop weight. The testing and appropriate numerical analyses determined the mechanism of redistribution of the shaft-base load of the pile up to the ultimate bearing capacity, whereby there occurs a reduction in the transmission of the load via the shaft and an increase in the transmission of the load via the base.

Recent studies of Erwinia amylovora in Montenegro, conducted from 2012 to 2014, indicated that the bacterium was widespread in the northern, continental part of the country, where the most important fruit-growing regions are situated. The presence of the bacterium was confirmed on quince, pear, apple, medlar and hawthorn. Pathogenic, cultural and biochemical characteristics of E. amylovora strains sampled from pome fruit species and indigenous flora in Montenegro had been studied previously. In the present study, serological tests were used for identification of E. amylovora strains originating from pome fruit trees and indigenous plants. Monitoring of E. amylovora and collection of samples with symptoms of bacterial fire blight from different hosts and locations were performed in Montenegro from 2012 to 2014. Isolation of the bacterium on nutrient medium produced a large number of isolates, whose pathogenicity was confirmed on immature pear fruits. Twenty-seven strains of the bacterium, originating from three pome fruit species (quince, pear and apple) and one indigenous species (hawthorn) were selected for serological analyses. Two applied serological methods, ELISA and IF test, enabled rapid detection of the bacterium and simultaneous examination of a large number of samples over a short period of time. Serological analyses showed high homogeneity in antigenic structure of the studied E. amylovora strains sampled from quince, pear, apple and hawthorn from nine locations in Montenegro., Novija proučavanja Erwinia amylovora u Crnoj Gori, sprovedena u periodu od 2012 do 2014. godine, pokazuju da je ova bakterija široko rasprostranjena u severnom, kontinentalnom delu zemlje, gde se nalaze i najznačajniji voćarski regioni. Prisustvo bakterije potvrđeno je na dunji, krušci, jabuci, mušmuli i glogu. U prethodnim istraživanjima proučene su patogene, odgajivačke i biohemijske odlike sojeva E. amylovora poreklom sa jabučastih voćnih vrsta i biljaka spontane flore u Crnoj Gori. U ovom radu primenjeni su serološki testovi u identifikaciji sojeva E. amylovora poreklom sa jabučastih voćaka i biljaka spontane flore. Monitoring E. amylovora i sakupljanje uzoraka sa simptomima bakteriozne plamenjače izvršeno je u periodu od 2012 do 2014. godine, sa različitih domaćina i lokaliteta u Crnoj Gori. Izolacijom bakterije na hranljive podloge dobijen je veći broj izolata, čija je patogenost potvrđena na zelenim plodovima kruške. Za serološke analize odabrano je 27 sojeva ove bakterije, poreklom sa tri jabučaste voćne vrste (dunja, kruška i jabuka) i jedne vrste iz spontane flore (glog). Primenjene su dve serološke metode: ELISA i IF test, koje su omogućile brzu detekciju bakterije i istovremeno ispitivanje velikog broja uzoraka za kratko vreme. Serološkim analizama utvrđena je visoka homogenost u antigenoj strukturi proučavanih sojeva E. amylovora poreklom sa dunje, kruške, jabuke i gloga, iz 9 lokaliteta u Crnoj Gori.

Problemi stranih radnih migranata ne zauzimaju značajno mesto u politici Vlade Republike Srbije. Politika Vlade je pre svega usmerena ka problemima dijaspore i srpskih radnih migranata u inostranstvu. Što se tiče nacionalne politike prema strancima, ona se s jedne strane bavi suzbijanjem ilegalnih imigranata, a s druge strane inkluzijom i readmisijom srpskih izbeglica. Međutim, u Srbiji je neophodan razvoj migratornih politika budući da one čine deo nacionalne strategije evrointegracija. Stoga smatramo da je izuzetno važno da se privuče pažnja i na ovaj aspekt problema migracija, odnosno na problem stranih radnih migranata u Srbiji. U ovom tekstu nastojale smo da damo osnovni pregled procedura, zakona i migratornih strategija koje postoje unutar nacionalne politike, ističući nedovoljnost i manjkavost u tretiranju pitanja stranih radnih migranata., Issue of foreign labour migrants in Serbia does not occupy very prominent place in Serbian governmental policies. These policies are mainly focused towards Serbian Diaspora and Serbian labour migrants working abroad. Conversely, national policies on foreigners in Serbia are mostly concentrated on suppression of illegal immigrants and inclusion and readmission of Serbian refugees. The development of Serbian migratory policies represents part of national Euro-integration strategy. Therefore we find relevant to draw attentions to this topic. In this paper we outline basic national legislation procedures, laws and migratory strategies and give review of basic national and other bodies. Furthermore, we focus on gaps in processing problems of labour migrants in Serbia.

Na osnovu sprovedenih terenskih istraživanja u istočnoj i jugoistočnoj Srbiji u radu se ispituju životne priče gastarbajtera kao materijal važan za antropološko i folklorističko istraživanje njihovog iskustva, vrednosti i identiteta. U ovom radu interesuje nas da, dajući glas samim gastarbajterima, na osnovu njihovih životnih priča izdvojimo i uočimo karakteristike različitih migracionih talasa koji su bili motivisani željom za boljim životom i materijalnim blagostanjem, ali i posebnim dodatnim motivima za iseljenje u zavisnosti od političkih i socio-ekonomskih uslova u zemlji matici. Nadalje, interesuje nas proces akulturacije u različitim zemljama useljenja. Konačno, razmotrićemo i priče gastarbajtera-povratnika i razloge za odluku da se vrate u domovinu., Based on fieldwork conducted in Eastern Serbia (Knjaževac and Kučevo with surrounding regions), this paper analyzes the life stories of migrant workers as material crucial for anthropological and folkloristic research into experiences, values and attitudes of the members of a certain culture. The term 'guest worker' (ser. gastarbajter, i.e. ger. gastarbeit) was used to designate temporary migrants who served as labor at the time of the reconstruction of Western Europe after World War II. A large number of migrant workers decided to stay in the host countries, and work migrations are still a common occurrence today. Based on the life stories of guest workers, in this paper we will attempt to map out the specific characteristics of different waves of migration. While all the waves of migration had a common cause - the desire for a better life and material stability - there were certain additional motives which depended on the political and socio-economic conditions in the home country. Furthermore, we are interested in the process of acculturation in different host countries, focusing on the differences in social policy regarding immigrants, the geographic distance from Serbia and the number of compatriots in the host country. Finally, we will address the narratives of guest workers who have returned, focusing on the reasons they decided to come back to their home country and the ways in which they settled down after their return.

Pola veka od odlaska prvih gastarbajtera na rad u zemlje zapadne Evrope je momenat u kome je potrebno rezimirati i refokusirati istraživanja celokupne pojave. U to istraživanje, shodno vremenskoj distanci i dostupnim dokumentima uključili, su se i istoričari, uz već ranije prisutna proučavanja u okvirima demografije, ekonomije i sociologije. Skromno učešće antropologa u dosadašnjem proučavanju gastarbajtera rezultiralo je siromaštvom problemski postavljenih pitanja i istraživanja koja na tako postavljena pitanja daju odgovore. Ipak, potrebno je definisati koji su to pravci problemski formiranih pitanja koji će učiniti prelaz sa deskripcije na tumačenje pojava proizašlih iz činjenice da je više od milion ljudi iz Srbije, tokom pola veka, dobar deo svog života provelo ili još uvek provodi u zemljama zapadne Evrope. Ovaj rad predstavlja pokušaj da se formulišu neki od mogućih puteva savremenog antropološkog proučavanja poluvekovnog 'privremenog rada u inostranstvu' građana Srbije., Half a century after the first migrant workers left to find labor in the countries of Western Europe comes the moment in which it is necessary to summarize and refocus the research into this phenomenon. The research effort has - in accordance with temporal distance and accessible documents - been joined by historians, on top of previously existing research conducted within the frameworks of demography, economy and sociology. The modest participation of anthropologists within studies of migrant workers up to the present has resulted in a scarcity of critical research questions and studies which would provide answers to them. Some issues were missed due to non-functional focusing on immigration and national minorities in neighboring countries, and can now only be studied within the context of historical anthropology. Still, it is necessary to define the directions which new research questions should take in order to make the transition from description to interpretation of phenomena stemming from the fact that over a million people from Serbia, over the last half century, have spent, or still spend a large portion of their lives working in Western European countries. This paper represents an attempt to formulate some of the possible paths contemporary anthropological research could take in the study of the semi centennial 'temporary labor abroad' of Serbian citizens.