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The method of accelerometric control of transport streams, which is part of the system of geotechnical monitoring, is considered. The main features of accelerometer sensors application in solving the identification problem of parameters of the transport stream are described. A mathematical model of the vibration load on local sections of the road is described. It is proposed to evaluate the effect of the transport load on the basis of the recorded parameters of the propagation of vibration effects arising from the...

Major infrastructure projects are nowadays benefiting on the remarkable IT structures which allows to use large datasets of the geotechnical parameters of interest and therefore to test different technical solutions, adapted to the site geology and local tectonic setting. Therefore is of major interest to have an improved knowledge upon the hazardous geological features, to evaluate them and to select among the possible technical solutions the most advantageous (in term of stability, strength and costs). In this s...

The internal arch of the Eastern Carpathians is a well-known area of mineral water occurrence. The combination of the post-volcanic phenomena, in terms of CO2 emissions (mofette) and water bearing layers lead to the formation of numerous mineral water springs with several locations where the mineral water bottling started more than 200 years ago. This study deals with the assessment of hydrogeological conditions, both hydrodynamic and hydrochemical, in such a particular area ? Lower Ciuc Basin. The main purpose of...

According to the globally sustainable trend line focused on the development or optimization of eco-innovative technologies or products to improve technical, environmental and economic performances of building materials, the necessity of experimental applications dealing with recycling and use of construction waste in geotechnical works has been addressed in various research studies. In this context, the present paper aims to configure soil compositions by mixing various types of construction wastes and enzymatic a...

Higher complexity of modern constitutive models often results in an increase of number of input parameters and time requirements for their calibration. Optimization methods provide a possible solution for this problem. A program application based on the metaheuristic optimization method Particle swarm optimization (PSO) is presented in the paper. The application consists of two parts: a subroutine with the PSO algorithm and a subroutine involving a finite element (FE) model of an analyzed construction. The subrout...

In recent years ,highway of our country grows vigorously now has become a stimulating domestic demand in the highway construction, and the important factors that promote the rapid development of national economy, it attaches great importance to by governments at all levels, highways extending unceasingly, also provides favourable conditions for the development of road transport. To solve the above problems in practical engineering, we must be to deal with natural foundation, and road in deep soft soil, after proce...

The contribution brings description of the mechanical properties of igneous rocks, particularly syenite from Kamenn? quarry within the T?eb?? Massif in Czech Republic. It is mainly focused on impact of triaxial compression testing in order to obtain data about the rock applicable for designing underground structures located at greater depths below the surface. The mechanical properties were determined from series of laboratory tests consisting of following procedures: (1) indirect tensile testing, (2) uniaxial com...

The Reactor Building NPP is a unique structure and has a complex nature of interaction with the soil foundation of various types. The complex nature of interaction is primarily due to the high load (approximately 0.6 MPa), behavior of the foundation slab as a fully rigid stamp, large load transmission area (6400 m2), and a long period of the building operation (at least 80 years). The main characteristic that describes interaction between the building and the soil foundation is the settlement whose maximum values ...

Modern tendency for cities development in suburb areas for civil, commercial, and industrial use is one of the reasons for constructions in territories that are not fully suitable for this purpose. It leads to changes in the stressed-strained state (SSS) of soil bases which may result from the damage or destruction of buildings constructed on the territory, that is significant financial and material losses in future. In order to determine the stability and reliability of different structures the term of their oper...

This paper deals with the evaluation of the hydrogeological hazard in the archaeological site of Castelseprio (northern Italy). Based on the geological, hydrogeological and geomorphological setting of the site, the failure modes and their causative factors were identified, and a proper conceptual model was reconstructed, identifying piping processes as the main phenomena ruling the slopes evolution and the landslides triggering. Afterwards, the hydrogeological hazard was assessed applying numerical modelling both ...

For one motorway project in Romania, the alignment has to cross an artificial lake that was made for drying a former swamp. The alternatives considered were crossing the lake with a bridge or with an embankment. According to the geotechnical investigations, the soil in the area consisted of soft saturated clays of 10-18m followed by marle. Crossing the lake with a bridge involved raising the vertical alignment of the motorway to nine meters above ground level in order to ensure the clearance for the maintenance of...

This research paper seeks to study the phreatic groundwater body from the Buz?u river alluvial fan. This goal is reached by creating a numerical model associated to a previously created conceptual model. The conceptual model was realized in three stages. Initially, a spatial schematization of the hydrostructure was created using the lithology collected while executing the hydrogeological boreholes. The second step consisted in studying the variation of the hydrogeological parameters in the hydrostructure. The para...

In the parts of the mine where the exploitation is finished, noticed is surface deformation as a consequence of the surface subsidence. They may be extremely unfavorable because they cause activation of new geomorphogenetic processes. After the excavation was completed, in 2011 a geodetic survey was carried out above the excavation field OP Kp-I ("C" plate) of the pit Seoce, mining area "Haljini?i" in Kakanj coal mine. Subsidence caused by underground mining are almost always localized on the surface above the und...

The precipitation surplus of the year 2009 has caused regional increase of the ground water table in the whole lowland region of Slovak Republic. The contribution deals with the analysis and the evaluation of the potential impact of treatment carried out through the Trn?vka River on the groundwater level regime in the adjacent area in the county town of Trnava. The aim of the article is to refute the false presumption of incorrect technical solution of Trn?vka stream training namely on the basis of similarity of t...

Pile foundations are among the most widely used deep foundations. Compared to the full-area foundation, here the weight of foundation and extent of excavation works have been reduced while the sheeting and massive backfilling have been eliminated. Concrete piles have been usually made of plain concrete or reinforced concrete. Piles of circular, square or polygonal shapes have been mostly used. Their dimensions differ depending on the technology used. The paper presents effects of piles loaded by bending moment. Th...

In Slovakia, there are two technologies NRTM and ADECO ? RS which are currently used for a tunnel excavation. During the tunnel excavation, a disruption of primary balance tension state occurs in a tunnel face followed by spatial redistribution stress, which results in creating a new equilibrium state of tension in the around rock mass. Changes in tension are connected with deformation of the excavation face, or the primary lining and round rock mass respectively. Practical experience and results of spatial numeri...

Oil and gas exploration in Bulgaria has been mainly conducted in Northern Bulgaria. Up to 2500 boreholes have been drilled on the territory of the country so far with a depth of several hundred meters to more than 6000 m. During drilling, groundwater with different hydrochemical properties, often with high total dissolved solids (TDS) and contents of a number of elements, have been registered. After the completion of the drillings, many of them have not been liquidated, as in some of the boreholes artesian water o...

With climate changes, fortified steep slopes on the road infrastructure are suddenly aggravated by the sudden change in temperature and the rapid melting of accumulated snow. Increased water quantities cause surface and underground flows that turn the slopes into running earth and falling rock fragments. The drained earth mass and the rocks not only break the road bed, but also create a real threat to the safety of people and vehicles. The report, based on an example from practice, discusses aspects of some techni...

The Road materials are exposed during the operation to the effects of traffic loads and climatic influences, in particular changes in air and humidity temperatures, which are reflected by cyclical changes in pavement and subsoil. Strain of different materials is very different its the same load and depend on its deformation properties. Strain of material and substance are generally characterized by deformation characteristics that are an important input for the calculation of stresses and deformation of the paveme...

The fundamental element to be ensured during laboratory tests is the control of the boundary conditions in terms of stress, strain and drainage conditions. The determination of the effective stresses is inherently associated with full saturation of soil specimen, as it allows to apply the Terzaghi's principle of effective stress. This paper describes the influence of partial saturation of soil on shear strength and deformation properties obtained from laboratory tests. The use of back pressure method, as the most ...

The article presents a failure of an existing road culvert located in the provincial road embankment that was built on an organic soil. Recommended road designing methods require the involvement of high volume of native soils. The problem occurs when there are only weak soils in the area. The particular group of soils consist of organic soils. Even in the case of the organic soils, there are several different methods for safe settlement of the designed road surface. In current case in order to reduce the settlemen...

This article presents the numerical analysis results obtained with a finite element of a corrugated steel box culvert. This article also presents the analysis of the main characteristics of the backfill soil, as well as predicting the value of the material properties. The analyses the plastic soil behavior and its interaction with buried flexible structures. Among all the theories available, three different theories were selected that describe the model properly. The theories used and compared are called Mohr Coul...

Nonwoven geotextiles have been used as filter and drainage materials in geotechnical works in the past 40 years. Geotextiles are easy to install and they help to minimize clogging effect of drainage systems, however sometimes geotextiles may not drain water as effectively as was expected. Drainage and filter layers have to cope with more severe clogging mechanism (chemical, biological and physical). Clogging, which involves the accumulation of material within the void space of drainage medium, is a problem in drai...

One of the most complicated and difficult problems in design of foundations is the nesseserity to quantify changes in the strength and deformation properties of soils foundations according to projected increase in soil moisture. This article presents the results of solving such kinds of problems on the example of a residential complex of twenty buildings, located in the Eastern part of Kazan City. The forecast of changes of hydrogeological conditions over a period of 50 years had been made by using numerical model...

The wind energy is a modern and efficient solution that uses the air flow through wind turbines to mechanically power generators for electric power production, being an alternative to burning fossil fuels. Wind power is renewable, widely distributed, produces no greenhouse gas emissions, consumes no water and uses small land areas. A wind turbine converts the kinetic energy of the wind into electrical energy. The electrical power generator and the steel upper structure of a wind turbine are equipments where were i...

One of the most common geotechnical risk induced by earthquakes is liquefaction phenomena, which it has been responsible for building damages that directly influenced population and economy. The growing recognition of importance of geotechnical site conditions in earthquake-prone areas has been generated by concern about liquefaction observed in strong seismic motions that occurred during 20th century. The paper aims to substantiate the necessity of a rational assessment of uncertainties and risks related to seism...

This study delineates groundwater potentiality assessment for growing population, irrigation and industrial development, combining with geo-informatics and field data for hydrological research in Kalmykia, Russia. Various thematic layers wear used along with existing maps to prepare groundwater potential zone (GWPZ) map. Weights were assigned to all above factors according to their effectiveness, sensitivity and relevance to groundwater potentiality. Furthermore the resulting groundwater potential map has been cla...

The ?Druzhba? uranium mine, near village of Eleshnitsa, Southwestern Bulgaria, was in operation from 1955 to 1992. During excavation work three different confined aquifers were registered ? at altitude of 805, 730 and 630 m. The original groundwater table was at 815 m and during the operation period it was reduced down to 520 m. After cessation of mining activities, the dewatering pumps (with approximate flow-rate of 300 m3/h) were stopped in December 1995, and then the deep mine galleries started to be flooded by...

Safe management of tailings storage facilities requires evaluation of embankment stability dams. In case of dams constructed by upstream method, special attention is drawn to evaluation of liquefaction potential. This requires evaluation of state of saturated, not compacted tailings material containing various amount of fines. Conventional methods based on static or dynamic sounding and standard sampling can?t assure required accuracy in determination of void ratio of deposited material. The paper presents results...

The Dobrudzha Coal Deposit is characterized by complex geological, tectonic and hydrogeological conditions. The formed aquifers and complexes, on the one hand, hinder the possible exploitation of the coal deposit, on the other hand they are important for drinking water supply in the area. The aim of the present study is to develop a 3D hydrodynamic model in the area of the deposit to elucidate the dynamics of the flow processes, the hydraulic connections between the different hydrogeological units and the possibil...

In order to increase the resource potential of the Volga-Ural oil and gas province, natural bitumen deposits have been commissioned in recent years. The pilot-industrial development of some near-surface bituminous deposits encountered numerous problems due to insufficient information on the hydrogeological conditions of the sites under study. In this paper, conditions of the groundwater deposits formation at natural bitumens deposits of the eastern side of the Melekess depression and the western slope of the South...

This article examines the conditions and prospects of technical water supply with a requirement of up to 20,000 m3/day of the soda ash production factory in the amount of 300,000 tons per year in Aralsk district (Zhalgizagash area) of the Kyzylorda region. The geographical position of the Aral Sea basin, the relief, the amount of precipitated water and the hydrographic network are described. Consumers of soda ash are also presented in this article. The construction of the soda ash production factory will have a si...

Mining exploitation in an underground mine is the main factor disturbing the balance within the rock mass. By removing the obtained raw material from the rock mass mining activity leads to changes in the broadly understood state of the natural environment. Extraction of the raw material ? hard coal with barren rocks is often associated with the need to undertake dewatering of the rock mass and discharging mine gases into the atmosphere. The process of extracting the raw material from the deposit and the accompanyi...

An important element in forecasting impact on groundwater of post-mining wastes used for open pit reclamation is the quantitative assessment of the absorptive capacity of deposited wastes (mainly Carboniferous rocks) and the volume of free rock debris as a zone more susceptible to mineral weathering and pollution leaching. These tests must be carried out simultaneously with the simulation on a laboratory scale of changes in the filtration coefficient of loose materials depending on the depth of the dumping ground ...

The paper presents the results of the research on contemporary permafrost dynamics associated with climate changes in Eastern Chukotka region (Chukotsky peninsula) and its impact on indigenous peoples? communities. The studies are based on the field monitoring works and geodetic measurements within several settlements as well as remote sensing data analysis and statistical results processing. The reasons of permafrost exogenous processes dynamics were indicated. The research was shown that the main threats for the...

Angle of friction ?, cohesion c and undrained shear strength ?fu are the strength parameters that characterize the mechanical properties of soils. These parameters determine the bearing capacity of a cohesive subsoil. The value of strength parameters depends on many factors, e.g. soil type, consistency, stress state, stress history, loading type and loading mode. The paper presents the influence of plasticity index Ip on strength parameters in cohesive soils. To determine the dependence of strength parameters on t...

The post-mining excavation "Piaseczno" is located in the south-eastern part of Poland, on the left bank of the Vistula River. After the extraction of sulfur and later sands in 1981, the pit remains in an unliquidated state. Its area is 167 ha, and the depth reaches 46.0 m. During the process of self-flooding of the excavation with water flowing in from the Neogene and Quaternary aquiferous, water level reached an ordinate of 138.0 m. This state has been maintained since 2012 by draining water from the created rese...

The purpose of this paper is to outline the findings of the study into the quality of water used for oil-field water injection operations to support the reservoir pressure. Comparative assessment of injection water quality at cluster pump stations has been carried out by means of a particle size distribution analyzer. The device was used to measure the particle size distribution in wastewater. Water samples from cluster pump stations located in the area producing oil from the Romashkinskoye oil field, Devonian for...

This report summarizes initial findings from a case study investigating the response of groundwater resources in the North of Crimea to intensive exploitation over recent years. There is the problem of increasing groundwater salinity. The aim of this study is to examine the response of groundwater in the area of the Isthmus of Perekop to current intensive abstraction, investigate groundwater recharge, and forecast possibility of future quality degradation. This territory was chosen as for the case study: hydrogeol...

The paper deals with geotechnical design and assessment of pile foundations of the steel arch bridge structure, which was built on the motorway D1 in the Jablonov ? Studenec locality in Slovakia. Bridge structure is founded in a very difficult foundation conditions created by flysch rock environment. The bridge structure is statically difficult. Therefore, it was necessary to proceed in accordance with the rules applicable to the 3rd Geotechnical category when designing and assessing the bridge structure. The resu...

The purpose of the present study, included in the research project SECOSUD Phase II, called ?Conservation and equitable use of biological diversity in the SADC region (Southern African Development Community) [1], is to describe the existing baseline situation in term of geological and hydrogeological conditions of the Kruger National Park, providing a starting point for understanding the water resources status quo, potential hydrogeological issues and concerns to assure a sound and correct water resources manageme...

Erosion of underground grout element resulting from the physical-mechanical effect of groundwater is a crucial problem, therefore the erosion resistance of grout element should be addressed in more detail. This paper aims to experimentally define the erosion resistance of underground grout element subjected to water flow-induced hydraulic forces. Laboratory tests were performed to investigate the resistance of geo-composites that practically form the grout element when applying the jet grouting technology. Erosion...

The TM-71 dilatometer is a device manufactured in the 60s of the 20th century in the Institute of Rock Structure and Mechanics of the Czech Academy of Sciences. It has been developed as a reliable and easy-to-use rock crack monitoring facility capable of working even in the least favorable climatic conditions. It is a purely mechanical system capable of determining relative shifts and rotations in all three axis of two monitored blocks. The device is read out using two pairs of overlapping optical patterns, which ...

Almost all geology and engineering geology attributes of soil in Nam Dan commune, Xin Man district, Northwest province of Ha Giang, Vietnam are sensitive to landslides. This has been proven by the analysis of experiments, especially in-situ experiments. Based on the analysis of engineering geology characteristics and available maps of terrain, geomorphology, geology, tectonics and weathering crust, a geological engineering map has been established and is used for studying landslides. The map serves as a reference ...

In this paper, a map zonation of landslide hazard and mass movements risks at the Goloord area (north of Iran), using Analysis Hierarchical Process (AHP) was performed based on the parameters of slope, slope direction, elevation, rivers, precipitation, faults, roads, geological unit and land usages. For optimization of the various parameters? effect that would lead to landslide occurrence, the effect dimensions of each of these layers were applied and the zonation of landslide risk in the region was mapped. The AH...

One of the methods to utilize highly toxic liquid wastes is injecting them into deep aquifers. The sedimentary sheath of the Russian platform within Tatarstan Republic has a prevailing thickness of 1500-2000 m. Two absorbing complexes: Visean-Bashkirian (C1v-C2b) and Middle-Upper Devonian (D2-3) layers, lying at depths of more than 1000 m, are the best for underground disposal of liquid wastes. In recent years, some major petrochemical companies in Tatarstan Republic have organized landfills for underground dispos...

The development of dangerous hydrogeological processes takes place as a result of the action of climatic factors and of unfavourable technogenic conditions. One of the reasons of the worsening quality of land resources is the salination of soils by chemical compounds (chlorides, sulphides, carbonates) from ground and surface waters and the non-rational irrigation which results in worsening useful properties of soil. With the aim of decreasing or avoiding soils salination hydro-ameliorative measures are used which ...

Kazakhstan is located in the arid zone in the conditions of water supply deficit. Irrigated cropping is the basis of agriculture for its southern regions. Akdalinsky irrigated massif (Almaty region, Kazakhstan) belongs to rice irrigation systems. Their exploitation causes the salinization and contamination of soils and groundwater. Mathematical modeling is the most effective method of solving hydrogeological problems associated with anthropogenic environmental impact. It is advisable to create permanent mathematic...

Submitted paper summarizes the existing knowledge and experience of the survey works and groundwater monitoring in the Slatinice waste dump. In the area of interest there are several hydrogeological collectors with different hydraulic parameters. Especially there are collectors of quaternary sediments, burned clays, weathered volcanic rocks and saturated contact layer between the dump and its subsoil. From the year 2013 an intensive hydrogeological survey is being carried out in the Slatinice waste dump and its su...

This article summarizes the findings of extensive hydrogeological mapping that has taken place over the past few years. The area of the CSA mine is situated at the northern edge in the central part of the Most Basin (North Bohemia, The Czech Republic). The area of interest is divided into several hydrogeological units, which are characterized by mutually different main determinants such as morphology, lithological characterization of the main types of rocks, tectonic violation. These are the following units: the c...