Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Engineering, Geological"”.
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Geomechanical behaviour and deformation of coal mine roof strata around faults: toward an engineering geological model
The development of an accurate engineering geological model and adequate knowledge of spatial variation in rock mass condition are important prerequisites for mine planning and risk management in underground coal mines. In longwall mines in particular, evaluating and predicting geomechanical …
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Engineering geological characterization of volcanic rocks of ethiopian and sardinian highlands to be used as construction materials
… the results of the study conducted on the “Geoengineering characterization of volcanic rocks from Ethiopian and Sardinian highlands to be used as construction materials”. Though, the two project areas are geographically far apart, both are partly covered with volcanic rocks mainly consisting of …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΕΣ ΣΥΝΘΗΚΕΣ ΣΤΟ ΝΟΜΟ ΑΧΑΙΑΣ-ΓΕΩΜΗΧΑΝΙΚΟΙ ΧΑΡΑΚΤΗΡΕΣ ΤΩΝ ΠΛΕΙΟΠΛΕΙΣΤΟΚΑΙΝΙΚΩΝ ΙΖΗΜΑΤΩΝ
THE ENGINEERING-GEOLOGICAL FRAME OF ACHAIA PROVINCE IS GIVEN AT FIRST, BY EVALUATING THE PREDOMINANT CONDITIONS, AND BY DRAWING THE ENGINEERING-GEOLOGICAL MAPOF THE AREA AT A SCALE OF 1:100. 000. IN THIS MAP, 18 LITHOLOGICAL UNITIES AREDISTINGUISHED. FOLLOWING, THE LITHOSTRATIGRAPHY, TECTONICS, …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΟΙ ΧΑΡΑΚΤΗΡΕΣ ΤΩΝ ΜΑΡΓΩΝ ΗΡΑΚΛΕΙΟΥ ΚΡΗΤΗΣ
… THESIS, IRAKLION MARLS WHICH CONSTITUTE THE MAIN GEOLOGICAL FORMATION OF THEIR GEOLOGICAL ENVIROMENT IS DESCRIBED AND THEIR MINERALOGICAL COMPOSITION AND FABIRC ARE DETERMINED. FOR THE GEOTECHNICAL DESCRIPTION AND CLASSIFICATION OF THESE MARLS PARTICLE SIZE DISTRIBUTION AND PLASTICITY ARE …
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The Engineering Properties of Glacial Tills in the Taff Valley, South Wales
… relevant to the subject.<br/><br/>Detailed engineering geological and geomorphological mapping was carried out at a scale of 1:10000. Geological mapping has shown that the nature of lodgement tills is much more strongly dependant on local bedrock geology than that of<br/>melt-out tills and …
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Bed Morphology and Sediment Transport Under Oscillatory Flow
The experiments focused on two aspects of the bed morphology: the study of the ripple planform geometry under a broad range of flow conditions, and the effect of orbital velocities on the ripple size under long water excursions. Regarding the planform geometry of the ripples, the results showed …
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Antropogenní změny reliéfu v inženýrskogeologickém průzkumu
Tato bakalářská práce se zabývá antropogenními změnami reliéfu a jejich významem v inženýrskogeologickém průzkumu. V práci byl nejprve popsán historický vývoj geologického vlivu lidstva, spojený s novým uvažovaným stratigrafickým termínem antropocén. Dnes je lidmi přemisťováno a ukládáno obrovské …
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Stability of tunnels in water saturated shale under cyclic stresses: investigation on the coupling between mechanical and seepage characteristics
… the laboratory. Considering the stress and hydrogeological conditions during tunnel excavation, the study systematically examined the damage characteristics of water-saturated shale under cyclic stress disturbances and its mechanical-seepage coupling properties. The effects of water saturation, …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΗ ΕΡΕΥΝΑ ΤΟΥ ΛΕΚΑΝΟΠΕΔΙΟΥ ΤΩΝ ΑΘΗΝΩΝ
… STRUCTURAL ARRANGEMENT AND THE LITHOLOGY OF THE GEOLOGICAL FORMATIONS WHICH CONSTITUTE THE ATHENS BASIN EXAMINED. THE CHARACTER OF ROCKS AND SOILS INCLUDING THEIR DISTRIBUTION, PHYSICAL STATE AND THEIR PHYSICAL AND MECHANICAL PROPERTIES ARE ALSO DETERMINED. FOR THIS PURPOSE A LARGE NUMBER OF …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΗ ΕΡΕΥΝΑ ΕΥΡΥΤΕΡΗΣ ΠΕΡΙΟΧΗΣ ΑΤΑΛΑΝΤΗΣ
… OF SUBJECTS OF THE GEOSCIENCES CONNECTED TO THE GEOLOGICAL STRUCTURE, THE SEISMOTECTONIC (WITH SOME ELEMENTS OF THE SEISMIC HAZARD), THE HYDROGEOLOGICAL CONDITIONS, THE CONSEQUENCES OF SOME ACTIVITIES ON THE ENVIRONMENT (PARTICULARLY ON THE POLLUTION OF UNDERGROUND WATER) AND THE GEOTECHNICAL …
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A study of chemical interactions between the Marcellus shale and attapulgite and bentonite clays
Chemical interactions occur between water based muds and shale formations. These shale-fluid interactions are often associated with problems that arise when drilling. This paper presents results from a study investigating chemical interactions that occurred between the Marcellus shale and …
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Development of LiDAR assisted terrestrial radar interferometry for rock deformation monitoring
<p>"Rock and soil slope movements cost millions of dollars annually. During the past few decades, engineers have relied on traditional methods to detect slope movements. These tools are valuable for small spatial areas but, may not be adequate or cost effective for large spatial areas. Remote …
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GROUNDWATER WITHDRAWAL ESTIMATION USING INTEGRATED REMOTE SENSING PRODUCTS AND MACHINE LEARNING
<p>"The rising demands for water, food, and energy primarily driven by the increasing global population constitute a pressing issue worldwide. Therefore, the water-food-energy nexus plays a substantial role in developing globally applicable sustainable solutions. Recent technological advancements, …
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RESISTIVITY IMAGING OF PROMINENT SEEPAGE PATHWAYS IN KARST TERRAIN
<p>"An integrated research approach was conducted to evaluate subsurface karstic conditions in Greene County, southwestern Missouri. Electrical resistivity tomography (ERT) was employed to image anomalously low resistivity zones associated with the presence of seepage pathways that were …
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Model Development and Incorporation of GIS Tools for Floodplain Management
… structure and river systems are modeled using engineering software programs, and hydrologic events are used to simulate the conditions leading to the failure of the structure. The output data is then exported to other software programs for the creation of inundation maps. While the computer …
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INVESTIGATING THE IMPACT OF ROCK BRIDGES ON THE MECHANICAL BEHAVIOR OF JOINTED ROCK MASS USING LATTICE SPRING-BASED SYNTHETIC ROCK MASS (LS-SRM) APPROACH
<p>"Rock bridges were defined as a segment of intact rock that separates from discontinuities. Numerous studies are focused on developing methods to quantify their significance in rock mass strength and deformability behavior. This thesis aimed to enhance understanding of the effect of rock bridges …
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DESIGN METHODS FOR PRESSURE RELIEF WELL SYSTEMS AT DAMS AND LEVEES
<p>"Flood risk reduction structures such as dams and levees are important systems that provide significant benefits to the nation. Relief wells reduce the substratum water pressures that can compromise them via internal erosion. The U.S. Army Corps of Engineers (USACE) analytical method to design …
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Identification, Mapping, Analysis, and Dating of Composite Mega Landslides in the Colorado Plateau
<p>"This research consists of three articles focusing on landslide complexes within the Grand Canyon region of the Colorado Plateau. This is a vast and remote region of rugged topography. The landslide complexes in this study are greater than 10 million cubic meters in volume. The slides are …
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Detection and elimination of rock face vegetation from terrestrial LIDAR data using the virtual articulating conical probe algorithm
"A common use of terrestrial lidar is to conduct studies involving change detection of natural or engineered surfaces. Change detection involves many technical steps beyond the initial data acquisition: data structuring, registration, and elimination of data artifacts such as parallax errors, …
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Impact of Stress-field Changes Induced by Hydraulic Fracturing on Subsurface Fault Stability
Hydraulic fracturing is essential for economically producing hydrocarbons from shale reservoirs, and thus has been extensively used in completion of shale gas wells. However, fracturing formations can change in-situ stresses in the surrounding areas. There are concerns that hydraulic fracturing may …
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