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Centuries-long exploitation of rock salt from Tuzla salt deposit has produced significant deformation of the ground surface and buildings in the town of Tuzla. The southern edge of the deposit dips beneath the northern part of the town. Although relatively small size, the deposit represents an extremely complex geological body The slow, natural processes of dissolution of the deposit's eastern part were accelerated by industrial exploitation of saline water (bri ne) that lasted over 100 years. Exploitation of the ...

Municipality of Kikinda spatially belongs to the northern part of Banat, Autonomous Province of Vojvodina and covers an area of 782 km 2. The water supply system uses groundwater wells which capture water from deep aquifer at a depth of about 200 meters and consists of central city water source and water sources from surrounding local communities. City’s central water supply system contains 14 wells, divided in several water sources which are: "Šumice", "Toza Marković", “Jezero” and “Masarikova”. The t...

The presented paper brings results of a case study implementing the geofactors of flood land and radon hazard into land use plans in the cadastral district of Doubrava and Karvina. The studied area is located in the Ostrava-Karvina Coal District in the north- east of the Czech Republic close to the Polish border. It is defined by the map sheet 15- 44-03 in 1:10 000 scale. The area was studied for the fact how land use planners catered for the distribution of flood land characte rised by the hundred-year flood and ...

Determining the stress around a mining excavation is a complex issue of Geomechanics and implicitly of the mining area. The evaluati on of stress state is essential, but very difficult to obtain, due to the interaction of the instrument ation with the rock massif. The measurement methods, together with the devices and the methods of processing and interpretation of data, ensure and create the possibility of knowing the degree of dependence between the measured effects in terms of time, and the factors causing them...

Factors that influence the geomechanical char acteristics of rocks can be of different nature, being divided into two broad categories of external factors and internal factors. Internal factors influencing the geomechanical characteristics of the rocks are the geological, physical and chemical. From the geological point of view, the main characteristics that influence the behavior of rocks are: mineralogical composition, structure and texture. From Physical and ch emical point of view rocks are directly influenced...

In seismic microzonation we want to display the variation in seismic response of the subsurface and subsequently determine where the soil is being amplified to a level that may damage existing buildings or other structures. Frequently peak ground acceleration (PGA) is used to determine the maximu m horizontal forces that can be expected. The method is not always adequate, because PGA often corresponds to high frequencies, which are out of range of the natural frequencies of most structures. The largest amplificati...

The crack propagation mechanism of rocks under tensile and compressive loading conditions has been investigated. A higher order indirect boundary element method using special crack tip elements has been used to solve the various example problems in rock fracture mechanics. It is concluded that the brittle rocks fail due to the mixed mode fracture propagation under both tensile and compressive loading conditions. The micro- cracks are initiated due to tens ile or tensile and shear under tensile loadings and due to ...

Analysis of the horizontal strains of the ground subsidence due to underground excavation in rock can be accomplished by a hybridized higher order indirect boundary element/ finite difference (BE/FD) formulation. The higher order displacement discontinuity field is obtai ned by using the quadratic displacement discontinuity elements (i.e each higher order element is divided into three sub-elements bearing a quadratic variation of displ acement discontinuities). Then th e classic finite difference formulation (i.e....

The aim of this paper consists in highlighting the feasible technical solution in a real situation, namely to achieve the consolid ation of the road accessing the monitoring block from Obrejii-of-CДѓpГўlna dam. As a consequence of the landslides occurred on the left flank, between the intersection with national road DN 67C and Podu Vacii point, at about 50 - 60 m downstream the dam, it was proposed the narrowing of the access road platform, to the surveillan ce and control block of the dam, on 20 - 30 m length. Ac...

The aim of the paper is to in form on the need to apply geological information in land use planning and other state administration spheres, such as building office services. The study was carried out with in the locality specified by a map sheet 15 44 07 in 1:10 000 scale, in the cadastral district of Petr vald, Orlova, Horni Such a in the north-east of the Czech Republic close to the Polish border. The subject of the study is an evaluation of geobarriers of rock workability, inundatio n area and radon index. A si...

The existing groundwater source for the public water supply of Be čej city in Serbia tapping groundwater from three water-bearing horizons over 15 wells with summary capacity of 100 l/s. Near the public water source of Bečej exists groundwater source for industry with capacity of 12 l/s which tapped same horizons. In the coming period is planned to increase summary capacity of this groundwater source up to 57 l/s. Also, the increase of summary city’s s ource capacity is planned for 50 % in the next few years, ...

The paper deals with some factors influencin g the values of sandy soils shear strength parameters, obtained by direct shear test (DST). Influences of density, shear area changing and number of specimens on the test result of clayey sand (SC) and sand with some fines (S-F) are examined. Influences of the density on the values of sandy soils shear strength parameters will be introduced in the paper by the tests with density index 6 . 0 ; 3 . 0=DI and 0.9. Influences of the shear area changing on the values of sandy...

This publication presents th e assessment studies of two important characteristics, limiting the utilization of the geological envi ronment for various pu rposes, especially construction. The first is the character of the pre-quaternary bedrock, other is the rock workability. Character of the pre-quaternar y bedrock and its depth is important primarily for the complex foundation engineering. They carry the greater load caused by the weight of the structure itself. Therefore, it is often necessary to carry the weig...

The purpose of this study is to present an application of the Static and Dynamic Rock Durability Indicators in order to estimate durability and weathered state of rock material used in the engineering structure. Durability of rocks can be defined as the rock’s ability to resist degradation during its working life. No one engineering test can be used as an absolute predictor of performance of building stone in service. Therefore a variety of approaches have been developed to estimat e of the durability of buildin...

The widespread use of various types of ro cks in construction, construction materials industry and in raw material production implicitly requires a detailed knowledge of their geo-mechanical characteristics. The use of ro cks in the execution of various works is only allowed if they fall within certain quality criteria. With in this context, in the Geo- Mechanics Laboratory from the University of Petro Еџani, a complete assessment of the geo-mechanical properties of rocks from S outhern VГўlcan Massif was carried ...

The purpose of this publication is to evaluate the geological environment for its suitability, respective unsuitability for foundation engineering. The means to realisation this objective was the study about extension of the engineering-geological zones on a map sheet 15-44-08 in studied area. This is an area municipalities in the Doly, Spa Darkov, Stonava and Horni Sucha. It is a mining area in the northeastern part of the Czech Republic. There were detected the speci es of the engineering-geological zones, the l...

Authors present some factors influencing the values of sandy soils shear strength parameters, obtained by direct shear test (DST) in another paper for the conference. In mentioned paper, the influences of density, shear area changing and number of specimens on the test result of clayey sand (SC) and sand with some fines (S-F) are analysed. In this paper, authors present how various values of soils shear strength parameters obtained by DST will influence the size of spread foundation placed in those soils. In the p...

With changes in Romania’s development strategy, as a result of accession in the European Union, but also with climate change increasingly affecting more lives in that increased upper and lower limits of temperat ure and precipitation, it was necessary to develop new asphalt recipes and to employ of conditions applying new screening criteria, to aggregates in accordance with these changes. Within this context, the present paper proposes a study that relates the distance transport of aggregates from the source are...

The object of this study is to locate the zones of groundwater discharge into the eastern shores of the Dead Sea. To achieve this object the electrical conductivity-temperature with a depth method was used. This study show ed that the Dead Sea divides into two layers relating to the electrical conductivity and temperature with depth. The upper layer subdivided into two members. The upper member extends from the sea surface down to a depth of 15-25 m. The lower member extends from a depth of 15-25 m to 40 m and it ...

Hydrogeological features of the quaternary sediments lies in different assumption for the emergence of freatic accumulations of groundwater and the ability to power or, conversely, to some extent seal underlying aquifers. Effect of the opencast mining on activities of quaternary sediments is significant and consists primarily in a drainage effect. In places, where the overburden works crossed saturated parts of the quaternary cover, there is a sudden drainage of aquifers. This water vents are regularly cause unres...

The submitted paper describes general data about geology, hydrology and hydrogeology of Radovesice dump. There are eleven hydrogeological monitoring objects in the area of interest. Monitoring of the water level in these objects is proceeding every month. Hydrogeological objects are situated to the aquifers inside the dump body and close to the dump floor. Between January 2009 was realized the new monitoring object with six pore pressure sensors. The submitted paper shows particularly our experiences with the eval...

In this study a new testing method for indirect determination of Unconfined Compressive Strength (UCS) of the rock core samples is presented. As known, there are some methods for indirect estimation of UCS such as; point load (Is), Schmidt hammer, sonic velocity, block punch strength test etc. However point load testing method is widely used to estimate the UCS, there are many problems and limitations related to this method as reported in the recent literature. It was obtained that CST proposed in this paper namel...

Selection of multistage excavation method has a special importance in the large section tunnels. It depends on some parameters such as rock type, geomechanical properties, rock mass, tunnel size, etc. This research is aimed to investigate the excavation method in the Imam Zadeh Hashem tunnel as a case study. For this purpose, two excavation methods, namely pilot and extending excavation method and heading-bench excavation method have been compared using numerical methods and FLAC-2D software. The results obtained ...

The ratio of observed vertical stress to its theoretical value in a soil mass which has settlement potential could be defined as arching ratio. This phenomenon could be observed in some projects, such as earth-fill dams, tunnels, and piles. Arching in earthfill dams may results in hydraulic fracture due to increase of pore water pressure, is the most important result of arching. Hydraulic fracture causes internal cracking of clay core which in turn results in more water seepage. To evaluate the arching effect, an ...

Dangerous geological processes which were caused by nature or anthropogenic are the reason of the catastrophes and the human sacrifices which necessary prevent and avert. A complex of the geological processes was considered and actions for engineering protection of the valley of the river Mzymta.

In Romania the estimation of the qualitative and quantitative status for the groundwater bodies was maded for each delineated groundwater body. The monitoring and knowledge activity of the groundwater bodies are made on the river basins through the observation wells for the shallow and depth groundwaters. The majority of these wells belong to the National Hydrogeological Network, but for the polluted areas there are local monitoring networks. The BuzДѓu-IalomiЕЈa river basin is one of the eleven Water Directions f...

Land planning is more and more understood to be a decisive tool, by means of which the society secures the systematic solving of functional, economic and engineering problems of the arrangement of landscape settlement, the rational use and protection of natural resources. The paper deals with an evaluation of four selected geobarriers (flood lands, radon hazard, undermining and slope movements) by means of geographic information systems that are geofactors endangering or limiting landscape and environment or make ...

Seashore, generally, especially cliffs, are very often affected by problems with instability. Such problems often lead to endanger of existing properties, excavations or structures under construction and to increase in expenses. The prime trigger for land slipping is a high ground water level. The method of dewatering is important. Some traditional drainage techniques are proven methods. However, two innovative deep drainage systems, siphon drains and electropneumatic drains, could have certain advantages. Two exa...

Low rise buildings are particularly vulnerable to ground movements sourced from swelling and shrinking of the expansive clays. Geotechnical engineers have long recognized that Swelling of expansive clays caused by moisture variation may result in considerable damage to the overlying structures, and engineers should take them into the consideration. The literature contains a vast number of stabilizing techniques such as lime, cement, fly-ash for treatment of expansive clays. However the use of gypsum as a stabilizi...

The "Drmno" coal strip mine is one of the most important factors of the electro-power system of Serbia. The coal exploitation has taken place over 20 years (since 987), with the exploitation of 6В·106 tons in 2007. The coal exploitation is complicated by the waterbearing character of the roof sediments, which is the consequence of the vicinity of the rivers Danube and Mlava. Groundwater protection is performed using the wells distributed in several lines (about 200 wells). Current solutions were formed either with...

The coal basin of Kosova has a huge coal reserves, they are the main power sources for thermo power stations of Kosova. The lignite is distributed across the Kosova, Dukagjini and Drenica Basins, although mining has so far been restricted to the Kosova Basin. The first systematic records of lignite exploitation since 1922, when a smallscale, shallow underground room-and-pillar mining commenced in the Kosova Basin. This case of study presents the hydrogeological conditions of the coalfield Sibovc, which is a part o...

The submitted paper describes general data about geology, hydrology and hydrogeology of Radovesice dump. There are eleven hydrogeological monitoring objects in the area of interest. Monitoring of the water level in these objects is proceeding every month. Hydrogeological objects are situated to the aquifers inside the dump body and close to the dump floor. Monitored values, atmospheric precipitation and configuration of surface streams create comprehensive view on the hydrogeological system of the Radovesice dump.

Studying the level of the underground waters nowadays is very important; therefore it is more than necessary to improve and study more this field, but always moving towards the digitalization of various devices. For this purpose we have constructed a device which measures the level of the underground waters, the device named BerSi 07 is a device which measures the level of the underground waters, flux of ground water, direction of movement of underground waters, active radius, hydrolines, hydraulic gradient, the d...

The Bolboci hydrotechnical arrangement was achieved in 1988 on the upper course of Ialomita river, in the complicated geological and tectonic conditions of Bucegi massif from the Oriental Carpathians. This occupies the tectonic syncline of Bucegi which is situated between Cheile Tatarului and Cheile Zanoagei, at south, resulted from the background deformations of precadomian crystalline and the deposition blanket being made from the succession of Dogger, Malm and Albian. On the level of the litho-group of Malm-Dog...

On the island of Evia, in central-east Greece, in Aliveri area, the mining operations (underground and surface) caused new and very complex hydrogeological, geochemical and geotechnical conditions. Since the mining operations have ceased since 1990, any plans for the utilisation of the former mining lands and buildings and the de3velopment of the area, demands the knowledge of these new conditions and the supply of sufficient water. A thorough investigation, including water level measurements, pumping tests, chemi...

Most of water resources in Iran are flowing in the west, south-west, north districts of country and, on the other hand, providing of water the central districts of Iran, for a long term, had been a critical problem to Iran water industry since long ago. Accordingly, many water transferring projects have been proposed between different zones to remove this problem. Transferring water from of Dez river to central districts of Iran is one of these projects that water transfer tunnel from Anvaj river to Qomrud is its ...

The subject of this paper is to present an efficient method for exploration of surface beds by means of one-channel reflection seismic. Two-step algorithm based on simplified seismic diffraction theory is used for processing of the field data. During the first step the registered wave field is re-calculated with specialized software taking into consideration definite assumptions for the environmental model. During the second step the so re-calculated wave field is transformed using Phase Shift Migration method. As...

The authors intent to give a compact overview in this article of the hydrological and hydrogeological circumstances of dump bodies in the western part of the North Bohemian Brown Coal Basin and their changing in the area of interest from the beginning of mining activity till now. There are morphologically important dump bodies of Prunerov, Merkur and Brezno in the area of interest. Some significant surface watercourses had to be relocated in the past at the same time as the dump bodies were being built and brown c...

The process of rock massif separation with the method of rotary drilling is a dominant process in geotechnology and in subterranean raw material mining. The type of drilling tool used and the mode of drilling with given properties of the rock are crucial in the determination of energy efficiency of this process. The research is directed toward classification of rocks into classes (pattern classification) according to geomechanical properties and the determination of efficient mode of drilling for individual define...

For opening of blocks No. 7 \& 8 of Golbini mine in Bauxite Jajarm region (Northern- Khorasan province, Iran) a tunnel is excavated with horse shoes shape with 800 m length. In this paper firstly, the tunnel section was modeled by FLAC2D software and secondly the stability analysis were studied. Then a composition of shotcrete and steel frame was offered. To reach an appropriate safety factor the shotcrete with 20 cm thickness which utilized with steel bars IPE-140, IPE-160 and IPE-180 established and amounts of s...