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Pile driving technology remains the most widespread method in Arkhangelsk where the presence of soft soils is an engineering-geological feature. There are situations when pile driving by hammer can be safe for existing buildings. Using two hammers allows to accelerate foundation works but it can damage the adjoining buildings. The monitoring of pile driving by two diesel impact hammers was carried out at one of the sites in the city. Vibration parameters were measured with triaxial accelerometer CMG-5 with continu...

The volume of transported goods is still rising. Road transport is congested the most. However, still bigger and bigger pressure on more ecological ways of transport is registered due to unfavorable effects of road transport. The railway is one of the most ecological ways of transport of heavy loads. Nowadays, electric engine is the most used way of locomotives traction thanks to electrification of most of railways. This fact significantly contributes to elimination of ecological influence on environment. Thus, th...

Vehicular traffic in major cities is the prevailing means of personal transport today. Nonetheless urban public transport has become more important. Its main advantage is the number of simultaneously transported people. This not only reduces the amount of greenhouse gases emitted, but also puts fewer passenger cars on the roads. The use of public transport is thus ecological and improves the flow of traffic in major cities. Metropolises today utilize comprehensive urban transport systems which combine metro, trams...

The highway E-80 is of strategic importance for the development of the main regional transport networks for South East Europe and it will provide optimal road connection with the Republic of Bulgaria and the Republic of Albania and wider with the other countries of the European Union. For the needs of preliminary design of the highway, specific geological investigations were performed (terrain and laboratory). Investigations are mainly focused on those parts of the terrain where the construction of tunnels, larger...

The interpretation and representation of the ground materials distribution and of their properties is a fundamental task in engineering geology practice. Engineering geological models can help to plan and developed the site investigation activities as they constitute an idealization of the ground, quite useful during the office and field tasks. The selection of the site investigation techniques can be more efficient when a ground model is idealized or sketched. The interpretation of the site investigation data mus...

Slovakia with regard to its small size (approximately 49,000 km2) is relatively rich in mineral water sources. This fact also applies to conditions of eastern Slovakia, which is mainly in the northern part concentrated numerous mineral springs in addition to several spas and bottling plant minerпїЅl waters. Eastern Slovakia is part of the Western Carpathians, which are of geological terms divided into five structural-facial zones. In addition to the front to the west of Slovakia interventions on its east: - Flysch...

The article presents the results of the research carried out in order to evaluate the possibility of using the groundwater of the Raba River basin for human consumption, using an indicator dedicated for groundwater (GQI). For this purpose an existing database that contains the results of analyzes of groundwater samples collected from October to December 2005 from wells (18 samples) or springs (21 samples) located in the Raba River basin was used. Samples were taken by one person according to the procedure describe...

The need for construction of new buildings is currently still growing. For construction are also used areas that were previously labelled as unsuitable or less suitable in terms of subsoil. The design, construction and implementation of building foundation, including subsoil modifications (foundation base) has a decisive influence on the building lifespan and its safety. This article presents an application of risk analysis method Umra (Universal Risk matrix analysis) to classify different types of subsoil. The me...

Manifestations of exogenous geodynamic processes in geomorphological objects at this stage is defined as damaging or destroying human life environment, leading to significant changes in the structure of the earth's surface. The term "exogenous geodinamic processes" refers to the concept of EA Likhachev, DA Timofeev "geomorphological danger" by the actions of these processes may be a crisis, disaster or catastrophe for a particular community of people and their economic structure. The factors leading to the express...

The article is devoted to one of developing directions in the area of improvement of construction properties with soil injection method fixative solution injection in soil under a lot of pressure the result of which happens to cardinally change structure massive soil and the formation of a rigid routinely inscribed in earth cover and forming along with compacted soil structure dubbed пїЅGeocompositeпїЅ. The method found wide application how for improve mechanical property of soils under new construction as well as...

In water scarce districts of the Akmola region the areas were revealed, perspective for carrying out exploration on underground waters and the card of forecast resources of underground waters of the Akmola region of scale 1:1 000 000 is constituted. As the main methods of researches are used: decryption of satellite images using cloudless fragments of space pictures of Landsat-8 from 2013 for 2016. In case of decryption of satellite images of the Akmola region comic pictures of the territory on 6 sites are process...

The Fourier two-dimensional series is used for classification of surface irregularities of rock joints. The expansion coefficients of this series are employed to form an absolute indicator of waviness of joint rock surfaces. The indicator serves for classification of surface irregularity of rock joints. The method has been applied to several real rock samples and the results are presented in the form of graphs. A similar visual comparison is often performed in geotechnical practice when joint rock coefficients are...

By the example of the new highway project in Moscow, the paper scrutinizes in detail the evaluation procedure of the differential and integral economic risk caused by geological hazards. Based on the analysis of engineering geological conditions at the construction site as well as the projected design for highway and bridges, the hazard of landslides, karst and suffusion processes and waterlogging was assessed. It is proved that for any scenario of landslide process (either deep or shallow landslides), the risk of...

The design and the execution of railways infrastructures imply exigent measurements not only from technical point of view, but also regarding the quality of the construction related or connected to the safety of the passengers. The technical norms and the continue development of the construction materials offers the possibility to realize infrastructures for railways that fist technically and economically to the concept of environmental protection. The geosynthetic materials involved in designing and maintenance o...

Protection of groundwater against pollution is an important part of maintaining sustainable development. In addition to the impact of the anthropogenic activity, groundwater resources may be exposed to many different kinds of pollution e.g. during floods. In such areas, knowledge about spreading mechanism of pollutants can contribute to choose appropriate preventive protection e.g. hydrogeological, hydraulic, geotechnical or other different measures. The presented problem can be solved by finite element method in ...

Disposal of increasing waste production in mining is currently a serious problem of civilization. The most common way to dispose of mining waste is storing them on impoundments. The hydraulic transport is advantageous from the standpoint of service and perhaps economy too, but the geotechnical properties of the resulting sediment are poor especially when saturated. For the design and construction of safe dumps with minimum impact on the environment the knowledge of the geotechnical properties of sedimented mining ...

Stage of construction works is responsible for the most part of risks, emerging during construction project. Violation of technologies of construction works, unsatisfactory quality of construction materials leads to additional costs of an amount equal to the cost of alteration of works. Each violation on the construction site on itself leads to insignificant damage, however, their frequency and complication at further stages entails a much larger aggregate damage. ThatпїЅs why qualified construction management per...

A concept of Geographical Information System (GIS) refers to a special system developed to collect, store, analyse and visualise geographical spatial data and related attribute data. GIS is not only a software which enables the system, but it also comprises collected data and specific organisational procedures. The most important advantages of GIS include the possibility of connecting spatial data and described attributes derived from different sources, and above all пїЅ the ability to perform geospatial analyses....

The prestressed injected ground anchor is a device, one end of which is fixed in the soil by injecting a cement grout, and the other is fixed on the retained structure after prestressing. Ground anchors are widely used in many building and construction sectors as temporary or permanent elements of structure for fixing sliding slopes and retaining wall, for strengthening of foundation, preventing uplift of underground structures, ets. In this paper using of ground anchors for construction of new berth and renovatio...

In the framework of the work, the authors conducted an analysis of the possibilities of modifying the selected rank method to evaluate the groundwater vulnerability to cpollution in the area where a source of contamination is at least partly under the surface and the groundwater interact directly with it. Such an object is among others the CTL Maczki-BпїЅr sand mine, the workings of which are reclaimed with gangue (post-mining waste) from coal mines. The analyses of the groundwater vulnerability to pollution using...

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 interesting area, currently represented by the internal wastedump and the own openpit mine CSA, has undergone significant changes over time that are associated almost with coal mining activities. This activity hit especially hydrological and hydrogeological conditions of the area. The original surface was naturally drained by the several streams, which were necessary translate to...

In relation with a study of arsenic pollution of groundwater in the Ogosta Valley, NW Bulgaria, a monitoring station was built in the floodplain in the upper reaches of the Ogosta River, not far from the town of Chiprovtsi. The observations took place at three adjacent sites including a hydrometric river gauge and two tube wells located closer and further from the river. River stages, groundwater level, water temperature and electrical conductivity were measured automatically at the three sites. Water pH, dissolve...

The research program consisted of 3 tests series that was carried out in a foundation cushion using recycled concrete aggregates as stuffing material and geosynthetic materials such as geogrids and geocells as reinforcement. It has been used a steel box with following dimensions 1x1x1.5 m. At the top of the foundation cushion it was sat a concrete foundation (with an area of 0.4 x 0.4 m) and there were applied vertically centered static loads. The dynamic loads were applied using a shaking table that has a maximum...

Considering that there are more and more situations where there is a need of building structures on low strength capacity grounds, we need to find efficient methods not only from the technic-economical point of view, but also from the time consuming point of view. The rapid impact compaction method is also an energy efficient method because there can be used any type of ground found in the site (gravel). The process itself itпїЅs the usage of a device that consists in falling weight of 5 to 9 tons from a controlle...

Geotechnical works are closely related to civil engineering works, both in the initial phase of a construction and, in special cases, after the construction when new structures are built in the vicinity. Depending on the foundation ground capacity, many types of works must be developed such as various pile driving methods, slope containment, deep excavation, ground improvement or treatment, etc. Associated with special types of works there are the vibrations propagated in the ground from depth to the surface which...

The work is devoted to consideration of the design of information and analytical support for the processing of heterogeneous geotechnical and geodynamic monitoring data. Based on the statistical analysis, the main problems were identified. They are leading to catastrophic consequences of karst dips and also affecting the quality of the forecast estimates. To increase the sensitivity of detection of the initial phase of destructive processes in the system "geological environment - engineering and technical object",...

On the night of February 21st, 2010, the county road 724 that connects the Malu cu Flori-Pucheni village was destroyed by a violent landslide, isolating it. In a few hours the road, together with the electrical, phone and water systems were moved downstream 30m along 100 meters. The area has been known for more than 100 years as being affected by landslides, which have appeared immediately after massive deforestation, regularly engaging local roads, house hold settlements. After the sliding in 1970, a series of wo...

This paper presents the results of a complex investigation executed in Bucharest, Romania by both geotechnical and geophysical techniques. Soil structure has been explored through 20 geotechnical boreholes at maximum 60m depth, which provided hundred of soil samples. A comprehensive set of experimental data on subsoil from oedometer and direct shear tests are analyzed in order to determine the stiffness and strength parameters for cohesive soils. For sands and gravels, the stiffness and strength parameters derived...

A case study concerning a drystone retaining wall that failed during construction, is presented. The site geology, the materials and their geotechnical characteristics are documented and discussed. The detailed site investigation performed allowed to define three geotechnical units: 1 - anthropogenic deposits; 2 - quaternary alluvial and colluvial deposits; 3 - Neogene alluvial fan. The third geotechnical unit, the Neogene alluvial fan, is mainly composed by dense and very dense sands, showed the best geotechnical...

This paper presents a new approach to the evaluation of dynamic soil strength based on the hypothesis of discreteness of the deformation process - a method of self-excited vibration. This method was first discovered at the sandy soil shear test. The destruction of the soil is viewed as cyclical and consists of two phases: the static and dynamic. On static stage deformation is slow, with energy accumulation. In the dynamic there is a rapid discharge, accompanied by a sharp increase in strain. Self-excited vibration...

The use of local soil as well as the recycling of existing structures such as road pavements using hydraulic binders is a beneficial technical solution, both in terms of economics and protection of the EarthпїЅs natural resources. Parameters of the soil stabilized with binders significantly affect the load bearing capacity and durability of the built structures. One of the important mechanical parameters applied in the analysis and design of soil structures is the modulus. Determination of the exact value of this ...

Bulgarian territory is subjected to impact of almost all negative and destructive geological processes and phenomena. The engineering estimation of these hazards requires knowledge of their origin, evaluation of potential occurrence of these phenomena, and their resulting risk. The liquefaction of weak soils under dynamic impacts is one of the processes that compose the geological hazards. This phenomenon occurs in certain areas during strong earthquakes. It involves a loss of bearing capacity of sediments, terrai...

During period of preparing the construction of halls of the industrial park, according to the geotechnical investigation were found adverse properties of soil. Below the ground surface was situated 5.5 m soft clay layer, deeper clayey gravel. Due to the nearby located river, the groundwater level was found just below the ground surface. Strict requirements to fulfilling first of all the serviceability limit state have led to the preparing the load test in real geological conditions in scale 1:1. Expecting load on ...

Metallurgical wastes are deposited in landfills or are being recycled, mainly as material used for engineering work. They are also sources of pollution in the groundwater environment. For this reason, it is necessary to explore environmentally safe ways of using them. Environmental impact assessments of waste can be made on the basis of static or dynamic laboratory tests. The alternative is to carry out lysimetric research. However, this kind of research is rarely performed due to the degree of complexity, cost an...

The article is an introduction to the issues of shaping the areas of former lignite mining surrounding the city of Zielona GпїЅra (Lubuskie voivodeship, Poland). The city of Zielona GпїЅra, seeking new investment areas, develops further areas, including those that have been former mine sites for at least 70 years. They have never been reclaimed. The remediation of former lignite mines, both technical and biological, is the responsibility of the mining plant and should be carried out in accordance with the law, how...

The article presents selected results obtained by using of electrical resistivity tomography method in searching of different, mostly anthropogenic objects at shallow depths. The anticipated depth of the object is up to 20m. These objects are relatively small with dimensions up to maximum in first meters in diameter. In terms of the shapes of these objects it is possible to define two groups. The first group consists mainly of the objects whose shape can be replaced by a vertical or horizontal cylinder. The second...

The object of this paper is represented by the analysis of a grid foundation for a light reinforced concrete structure. The need for this kind of analysis was imposed by the foundation ground conditions. In the case of sites presenting differentiate foundation ground conditions in the perimeter of a construction it is necessary a detailed analysis of the foundation conditions of the site and also, the behavior of the ensemble of the entire structure. So, is stent an adjustment of the foundation solution to the sit...

Exploitation of groundwater deposits exerts an influence on the state of the hydrogeological objects and the environment at large. The special study is required for the areas with the limited-use surface water. Province of Kyzylorda is one of such regions in Kazakhstan. Its water supply is mainly realized by use of underground waters of Kyzylzharminski deposit. Methods of mathematical modeling play an important part in the process of studying the hydrogeological objects, which are subject to the effect of high tec...

Many sports facilities were constructed in the Sochi area prior to Winter Olympics, 2014. We contributed to this by conducting the research of geological risks on the northern slopes of Aibga Ridge пїЅ the place allocated for construction of mountain skiing tracks. Initial data of the study comprised digital topographic model, field findings, and remote sensing data. All these were organized by using the instruments of MapInfo Geographic Information System (GIS). The research was based on the system-morphological ...

It is well known that the Russian North is rich in hydrocarbon resources, and oil production there requires long transporting pipelines. We studied geological and other natural risks associated with the project of construction of oil pipeline from South Bagan field, Komi Republic. To evaluate the risks we put into geographic information system (GIS) topographic maps as well as drilling data, remote sensing and own field survey materials. It is the system-morphological approach by A. Lastochkin that was used as a m...

Risk assessment includes quantitative estimation of damage to a linear engineering structure by exogenous geological processes. Remote sensing data processing using the mathematical morphology of landscape seems to be a promising approach of exogenous hazard risk assessment for linear structures, this issue is examined taking thermokarst plains as an example. The mathematical models of landscape morphological patterns for thermokarst lacustrine plains and thermokarst plains with fluvial erosion is a base of the su...

The article deals with the geotechnical calculations of the interaction of reinforced concrete storage boxes with subsoil at different loading states. From the numerical method point of view, this problem is solved by deformation variant of the finite element method. Defined the load states take into account the gradual filling of storage boxes with low and intermediate radioactive waste and final coverage of the storage boxes. More detailed are analyzed the results of the numerical calculations of vertical displa...

The article deals with the problem of determination of zones induced by excavation of underground work in solid granitoid rocks using numerical modelling under the assumption of Hoek-Brown's failure condition and DiederichsпїЅs conceptual model of behaviour of the rock environment around the underground work. Three fundamental induced zones around the underground work are characterized - the High Damage Zone (HDZ), the Excavation Damage Zone (EDZ) and the Excavation Influence Zone (EIZ) and the possibilities of th...

Productivity of geothermal reservoirs is often limited by capability of injection wells due to clogging of near-filter zone or increased viscosity of cooled waters. Especially for highly saline reservoirs, injection of cooled waters to water-bearing formation is often the only way of their disposal. In turn, this phenomena has little importance in case of low-mineralized waters. However, several water-treatment procedures can be used to recover valuable minerals, thus producing diluted water and salt concentrate. ...

Development of numerical methods allows on much more better examination of changes in foundation-soil interaction. However, there are still some areas which require more analysis and discussion, because results of simulations on are often divergent to the field tests. One of these problems is numerical modeling of displacement pile installation and proper consideration of its influence on surrounding soil. Application a simple FEM model can be not sufficient, by its limited application in changes of soil considera...

Reliability of a concrete pipe culvert was tested under rail and embankment loads. In the finite element model soil-structure interaction and nonlinear behavior of the materials were taken into account. After a preliminary study three influential variables as random were selected for presented approach to probabilistic model, i.e. concrete strength, soil density and its modulus of elasticity. Because various concrete parameters can be easily derived from the compressive strength only this parameter was selected fo...

The construction of some large industrial units and their endowment with oversized and heavy technological equipments, as well as their regular repair or replacement, led to the necessity of transporting some parts that exceeded both the gauge and the tonnage admitted on public roads. The choice of the route and the transport scheme (on one or more trailers) was made in such a way that requests would be as few as possible in order not to exceed the carrying capacity of the roads and bridges. However, in many cases...

In world, pipe jacking method had a very quick development. In last years there has been seen a tendency in metallic fiber reinforcement. In the first part the paper present o short description of the method and pipes reinforced with metallic fiber. The second part is dedicated to three dimensional numerical analize of pipe jacking method, to define their influence on pipe efforts, with considering the horizontal push force. In the third part are presented parametrical studies on fiber reinforced metal pipes used ...

The goal of the contribution is to elaborate the analysis and prognosis of groundwater level regime using numerical modelling to show the possibility of introducing technical measures which have to mitigate the unfavourable groundwater level regime in the vicinity of the hydraulic structure. For numerical simulation purposes a mathematical model by means of finite element method has been provided in right-side alluvium of the VпїЅh River with detailed concentration on endangered village in the vicinity of the hydr...

The sedimentary environments are in general very important aquifers because of the following characteristics: high permeabilities, storage capacity, the interaction with the surface waters. The exploitaition of this types of aquifers it is significant because, among other things, this aquifers are easily accessible (in general we donпїЅt need complex systems of capture and in most cases are enough wells ans/or drilling between 10-100m depth). Must of the aquifers structures from the south part of Romania are usual...