Results 81 to 90 of about 64,796 (273)
Numerical Analysis and Control Study on Surrounding Rock Deformation of Deep Soft Rock Roadway [PDF]
E3S Web of Conferences, 2021 Aiming at the problem of large-scale deformation of the track and alleys in the East Second Mining Area, the numerical analysis method is used to analyze the stress and deformation law of the roadway. The results show that the critical depth of the roadway deformation is 800m, the shear stress of the deep roadway is about 8.7MPa in the left and right ...
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
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Mechanism and Control of Cable Breakage in a Roadway with Thick Top Coal in a Rockburst Mine
Advances in Civil Engineering, 2021 Because top coal is not stable, a roadway with thick top coal often appears to mine pressure problems, such as bolt failure, cable breakage, and roof caving. In particular, these problems are more serious in rockburst mines.
Ying Xu, Xiekang Zhou, Weimei Gong
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Surrounding rock support technology of extra thick coal seam roadway under the influence of mining
Meikuang Anquan, 2021 In view of the difficulty of surrounding rock support in the extra thick coal seam roadway affected by twice mining in Suancigou Coal Mine, the deformation and failure law of surrounding rock in the extra thick coal seam roadway under the influence of ...
LYU Kun
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The Stability Evaluation of Roadway Surrounding Rock in QingFeng Coal Mine
Advances in Engineering Research, 2014 In order to have a better understanding on the stability of roadway surrounding rock in QingFeng coal mine. Protodyakonov's theory is used to evaluate its stability theoretically, then a numerical simulation is conducted to analyze the stability of roadway surrounding rock in natural state by using the phase finite element software.
Bo TANG +4 more
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Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Geofluids, 2021 The expansion of the roadway surrounding rock failure zone may connect the floor aquifer and cause the roadway water inrush. In order to reveal the mechanism of the roadway water inrush above confined water, we established the force model of the roadway ...
Xiaofei Guo +7 more
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Stability analysis of roadway surrounding rock with weak interlayer under dynamic and static loads
Meikuang Anquan, 2022 To study the deformation and failure law of roadway surrounding rock with weak interlayer under dynamic and static loads, taking the deep transportation roadway of Longfeng Coal Mine as the research object, the mechanical deformation characteristics of ...
LAN Hong +6 more
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Westwood Multimodal Transportation Plan [PDF]
, 2020 Westwood is experiencing an industrial regeneration that will change the way the area is utilized by the surrounding communities. To be proactive, Henrico County is planning for the future by creating an overlay zoning district and striving for a ...
Austin, Ashley N
core +1 more source
Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
wiley +1 more source