Study on mechanical properties of coal before and after flooding considering bedding direction [PDF]
, 2023 The weak bedding plane and the water-softening coal will lead to the decrease in mechanical properties, which has an important influence on the stability of underground reservoirs and the prevention and control of water inrush accidents in coal mine.
Huijie ZHAO +4 more
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Effect of calcium lignosulfonate on the deformation and failure characteristics of cementing stone and its modification mechanism [PDF]
, 2023 In the coalbed methane extraction of surface wells in the mining area, the mining of coal seam in working face will cause a significant disturbance to overlying rock layer, which in turn will lead to the deformation and damage of surface wells.
Quanle ZOU +4 more
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Failure test and strength model of high-porous low-cementitious waste backfilling material [PDF]
, 2023 In order to alleviate the shortage of underground aggregate sources and time cost of vibration and compaction during backfilling, a new type of high-porous low-cementitious waste backfilling material (HPLCM), which was composed of self-compacting slurry ...
Chunyang CUI +5 more
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Experimental study on shear mechanical properties and damage evolution ofartificial structural plane under constant normal stiffness [PDF]
, 2023 To study the influence of asperity angle and normal stiffness on the shear mechanical properties of the structural plane, a direct shear test of the artificial structural plane with constant normal stiffness (CNS) was carried out using the self-developed
Feng JIAO +5 more
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Experimental study on energy dissipation and failure characteristics of rock at depth under non-hydrostatic pressure condition [PDF]
, 2023 Deep buried rock is often in a non-hydrostatic initial ground stress field, and the different stress states lead to different rock response under dynamic loading.
Jun CHEN +4 more
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Surface deformation field and fracture propagation mechanism of rock-like specimen with pre-existing fracture [PDF]
, 2023 Eastern coalfield goes into deep mining gradually in China. Fracture development rises greatly in surrounding rocks, increasing the difficulty in ground control under increased mining disturbance.
Bokai QIAO +3 more
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Brief Analysis of the Development of Mechanical Research and Trends of Grouted Connection of Offshore Wind Turbine [PDF]
, 2023 [Introduction] The connection between offshore wind turbine foundation and superstructure is usually made by grouting. It is crucial to ensure the safety of the grouted connections, and the study of grouted connections is always a key and difficult point.
Kan LIAO, Ke CHEN, Li ZHANG
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Dizhen xuebao, 2022 以典型的两层三跨形式地铁车站为研究对象，采用非线性动力时程反应分析方法，对软土场地的地铁车站与上部交叉桥梁模型进行数值模拟分析，给出了一种潜在的地铁车站−桥梁耦联破坏模式，分析了地铁车站与上部桥梁的地震动力相互作用。数值模拟结果表明：桥梁对车站的地震响应影响较小，车站发生破坏主要取决于地震作用及其本身的强度；地铁车站发生破坏后会引起邻近区域土层产生较大的水平和竖向变形，进而会引起邻近区域地基失效并使桥梁发生落梁破坏；地铁车站遭地震破坏后，桥梁基础带动邻近区域的土层整体向车站方向移动，加剧车站坍塌震害。
Rui Dong +3 more
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Effect of post-peak cyclic load on mechanics and seepage characteristics of sandstone under different confining pressures [PDF]
, 2023 The mining disturbance causes the rock mass in a certain range of the coal seam floor to be in a post-peak state. Due to the excavation of adjacent roadways and the mining of coal seams, the post-peak rock mass undergoes a cyclic loading-unloading ...
Daqiang XU +7 more
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Experimental study of failure behavior of disturbed zone around an opening in non-persistent jointed rock masses [PDF]
, 2017 2003-2004 > Academic research: refereed > Publication in refereed journalVersion of ...
Lin, P, Tang, CA, Wong, RHC, Zhou, WY
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