An Elastoplastic Softening Damage Model for Hydraulic Fracturing in Soft Coal Seams
Advances in Civil Engineering, 2018 In order to improve the permeability of soft coal seams with low intensity and permeability by hydraulic fracturing, an elastoplastic softening damage model of soft coal seams has been established, which takes into consideration the lower elastic modulus
Yang Hao +5 more
doaj +1 more source
Multiscale Research on Pore Structure Characteristics and Permeability Prediction of Sandstone
Geofluids, 2021 The random existence of many irregular pore structures in geotechnical materials has a decisive influence on its permeability and other macroscopic properties.
M. A. Shi-Jia +5 more
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Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]
, 2017 The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
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Geofluids, 2022 The vertical additional force induced by the drainage consolidation settlement of the topsoil is one of the main factors for shaft wall fracture. To date, the number of aquifers of topsoil rises with the depth increasing of shaft, which would lead to a ...
Tao Han +6 more
doaj +1 more source
Spatial planning and architectural innovation in the Roman town of Ocriculum. [PDF]
, 2018 The Roman settlement of Ocriculum (Otricoli, TR - Umbria), built on a tufa slope between the Tiber valley to the north and the San Vittore valley to the south, was established on massive substructures, which allowed the exploitation of a larger area ...
ANTONELLI, GIACOMO
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Thermodynamic and geomechanical processes research in the development of gas hydrate deposits in the conditions of the Black Sea [PDF]
, 2018 Purpose. Research of thermodynamic and geomechanical processes occurring in a gas hydrate body under the influence of an activating agent (sea water from surface layers) in the conditions of the Black Sea by mathematical modeling using finite element ...
Bondarenko, V +3 more
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Choice and substantiation of stable crown shapes in deep-level iron ore mining [PDF]
, 2018 Purpose. The aim of the paper is to select and substantiate stable shapes of crown pillars through determining regularities of rock pressure impacts on their stability depending on the crown shapes, mining depths and iron ore hardness. Methods.
Kalinichenko, O +4 more
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Failure mechanisms of soft rock roadways in steeply inclined layered rock formations
Geomatics, Natural Hazards & Risk, 2018 In recent years, with the increasing depth of coal mining around the world, traditional shallow geology mechanics are no longer suitable for the research on deep geological problems. In terms of deep mining, soft rock roadways in inclined rock formations
Zhigang Tao +6 more
doaj +1 more source
Study on 3D modeling method and reinforcement scheme of large and complex open-pit mine
矿业科学学报, 2021 Large-scale topping deformation occurred in the southwest stope of Changshanhao Open-pit Gold Mine in Inner Mongolia.Through systematic investigation of the engineering geological conditions and rock mass structure types, the deformation characteristics ...
Tao Zhigang +4 more
doaj +1 more source
Advances in Civil Engineering, 2021 Mining in close distance coal seams (CDCSs) is frequently associated with engineering disasters because of the complicated nature of stress distribution within CDCSs.
Yong Zhang +6 more
doaj +1 more source