Prediction Method for the Ground Vibration Damage Boundary of Thick and Hard Rock Layer Fracture Type Mine Quakes by Ming Zhang, Xuelong Hu, Min Tu, Yong Yue, Qingwei Bu

“…Finally, the results are used to predict the ground vibration damage boundary of limestone primary fracture in the longwall 16101 face of the Fuping Coal Mine.…”
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Linkage Analysis between Solid-Fluid Coupling and the Strength Reduction Method for Karst Cave Water Inrush in Mines by Yanlin Zhao, Jian Liao, Qiang Liu, Yang Li, Jianchao Cheng

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A Coupled Elastoplastic Damage Dynamic Model for Rock by Xuelong Hu, Ming Zhang, Xiangyang Zhang, Min Tu, Zhiqiang Yin, Haifeng Ma, Minke Duan

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Three-Dimensional Physical Simulation and Control Technology of Roof Movement Characteristics in Non-Pillar Gob-Side Entry Retaining by Roof Cutting by Xinzhu Hua, Guanfeng Chang, Xiao Liu, Bingjun Sun, Sen Yang, Enqian Wang, Chen Li

“…On the bases of the actual geological conditions of II 632 Haulage Roadway at the Hengyuan coal mine, a similar three-dimensional simulation experiment of roof precutting is conducted. …”
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Instability mechanism of coal pillar in steeply dipping ultra-thick coal seam “segmented and stratified” combined mining by Yong LIU, Yao YANG, Xiao WANG, Wenqiang WANG, Xuesong WU, Anye CAO, Zujun LU, Tao YANG, Zhanquan WEI

“…In order to solve the problems of frequent high energy microearthquakes and large roadway deformation in full-mechanized caving “segmented and stratified” combined mining in Yanbei Coal Mine with large dip angle and extra-thick coal seam, theoretical analysis, numerical simulation and field measurement are used to study the bearing stress characteristics of coal pillars and the instability mechanism of coal pillars. …”
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A Study on the Influence of Mining Depth on the Stress Distribution Characteristics of Stope Surrounding Rock by Shaobo Li, Lei Wang, Qihan Ren, Chuanqi Zhu, Huaqiang Liu, Huaiqian Liu, Lipeng Chen

“…In order to study the influence law of mining depth on stope strata behavior, taking 11318E fully mechanized working face in Xieqiao Coal Mine of Huainan Mining Group as the engineering background, the stress distribution and evolution characteristics of stope surrounding rock under mining depth were studied by similar material simulation. …”
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The Stability Evaluation of Shaft during Drastic Drawdown Dewatering of Alluvium by Mingze Du, Yanchun Xu, Heng Duan, Wen Li

“…Based on the measured hydrophobic compression ratio in an adjacent coal mine, the compressive amounts of the strata near the main and auxiliary shafts in the Zhuxianzhuang Coal Mine are predicted under the condition of drastic drawdown dewatering, which will be 249.69 mm and 302.75 mm, respectively. …”
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Experimental study on impact failure characteristics of deep circular roadway by Shoujian PENG, Yan YANG, Jiang XU, Qingfeng XU, Chaolong QIN, Xiaoli NONG

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Influence law and control mechanism of coal seam permeability on coal and gas outburst by Chaolin ZHANG, Mingliang LIU, Enyuan WANG, Peizhong WANG, Qiaozhen JIANG, Wei ZENG

“…Coal and gas outburst is a destructive gas dynamic disaster in coal mines, which seriously threatens the safety of coal mine production. …”
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Analysis on Characteristics of Surrounding Rocks of Roadway and Bearing Structure Based on Stress Regulation by Ruofei Zhang, Guangming Zhao, Xiangrui Meng, Jian Sun, Wensong Xu, Yingming Li, Zenghui Liu, Siming Kao

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Mechanism and Prevention and Control of Mine Earthquake in Thick and Hard Rock Strata considering the Horizontal Stress Evolution of Stope by Ming Zhang, Xuelong Hu, Hongtao Huang, Guangyao Chen, Shan Gao, Chao Liu, Lihua Tian

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Optimization of Barrier Pillar Design in Longwall Mining with Top Coal Caving in Spontaneous Combustion Coal Seam by Qiang Fu, Ke Yang, Qinjie Liu, Shuai Liu, Xiang He, Xin Lyu

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The Time-Space Joint Response Characteristics of AE-UT under Step Loading and Its Application by Xiaoran Wang, Xiaofei Liu, Enyuan Wang, Chong Zhang, Haishan Jia, Dexing Li

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Study on the Interaction between Low-Viscosity High-Permeability Pregrouting Sealing Material and Coal and Its Application by Yujia Chen, Ao Li, Dingding Yang, Tianyu Liu, Xiaowei Li, Jun Tang, Chenglin Jiang

“…In order to ensure the intactness of pressure-measuring boreholes and the accuracy of gas pressure determination, pregrouting treatment with polymer materials is frequently applied to bedding drilling in coal mines. However, the existing polyurethane materials are of high viscosity, low permeability, and poor safety, bringing great difficulties to their field promotion and application. …”
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Assessment of Risk Tendency of Coal Bursting Pressure in Deep Outburst Seam by Beifang Gu, Longkang Wang, Minbo Zhang

“…In order to analysis the mechanism of coal bursting pressures of deep coal seams and take effective methods to identify, monitor, and control coal bursting pressure, this paper takes 21101 working face of No. 2 coal seam in Dongpang Coal Mine as an example. Risk identification is carried out for the hazardous and harmful factors of coal bursting pressure in coal seam 21101 in Dongpang Coal Mine, and each influencing factor is classified. …”
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Study on Roof-Coal Caving Characteristics with Complicated Structure by Fully Mechanized Caving Mining by Yunpei Liang, Lei Li, Xuelong Li, Kequan Wang, Jinhua Chen, Zhongguang Sun, Xuelin Yang

“…According to the mechanical characteristics of roof-coal in Qinyuan coal mine, deep-hole blasting technique has been used to reduce the fragments of roof-coal crushed. …”
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Effects of Unloading Rate on Energy Evolution Mechanism in the Single-Side Unloading Failure of Highly Stressed Marble by Wensong Xu, Guangming Zhao, Xiangrui Meng, Siming Kao, Shunjie Huang, Chongyan Liu

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Quantitative Damage and Fracture Mode of Sandstone under Uniaxial Load Based on Acoustic Emission by Ying Xu, Qiangqiang Zheng, Xin Gao, Rongzhou Yang, Xian Ni, Qianqian Wang

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Study on the Rock Size Effect of Quasistatic and Dynamic Compression Characteristics by Jun Zhou, Xiangrui Meng, Chongyan Liu, Zhixi Liu, Wensong Xu, Xiang Cheng

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Investigation of Pressure Relief Borehole Effects Using In Situ Testing Based on Distributed Optical Fibre Sensing Technology by Yunpeng Li, Dequan Sun, Shankun Zhao, Kaihua Liang, Kai Cui, Huaihong Wang

“…Borehole pressure relief method is one of the most effective ways of rock burst prevention in coal mines. The measured results of borehole pressure relief at no. 8939 longwall face in Xinzhouyao coal mine, China, are presented here. …”
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