Results 11 to 20 of about 135,213 (339)
Research on the type and occurrence mechanism and prevention of coal pillar rockbursts
Meitan kexue jishu, 2023 Coal pillar rockburst is a typical type of rockburst occurring in coal mining in China in recent years. How to summarize the engineering scale damage characteristics of coal pillar rockburst, reveal the mechanism of rockburst instability and formulate ...
Xiufeng ZHANG, Yang CHEN
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Research on Multifactor Analysis and Quantitative Evaluation Method of Rockburst Risk in Coal Mines
Lithosphere, 2022 The prevention of rockbursts is significant to ensure mining safety in deep coal mines. The multifactor analysis and a new quantitative evaluation method for rockbursts in coal mines are proposed in this study.
Weisheng Du +4 more
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Meitan kexue jishu, 2023 During the exploitation of deep geothermal resources, the thermal fractures of high-temperature rocks are usually induced by the impact of low-temperature fluids to improve the permeability of reservoir rocks.
Jiamin WANG +5 more
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Analysis and Engineering Practice of Factors Affecting Top-Coal Recovery in a Large Dip Coal Seam
Advances in Civil Engineering, 2022 The recovery of top coal in the caving face directly impacts the efficiency of mining coal resources. The geological conditions and mining parameters are well known to be significant influences on the recovery of top coal. This study focused on the 9-301
Xinglong Huang +11 more
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Study on the Mechanism of Gas Ignition by Friction Effect of Hard Quartz Sandstone Instability
Geofluids, 2020 When the upper part of a high gas coal seam has hard and thick sandstone roof, the gas explosion accident in goaf is even caused by roof collapse. Taking the mining of 1007 working face of 10 coal seam under Xia KuoTan Coal Mine as the engineering ...
Li Fuqiang +5 more
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Sliding Impact Mechanism of Square Roadway Based on Complex Function Theory
Shock and Vibration, 2021 To clarify the process of stress change and plastic zone evolution of square roadways under high-stress conditions, the rotational square expansion plastic zone evolution model of square roadway was established by theoretical analysis, numerical ...
Decheng Ge +7 more
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Risk identification formula for coal burst occurrence and its application
Meitan xuebao, 2023 Aiming at the problem that the traditional discrimination method of rock burst generation lacks the consideration of the whole disaster process and has some defects, taking the decomposition of the physical process of coal mine rock burst generation as ...
Junfeng PAN +3 more
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Experimental studies on the shear resistance of original coal-shale joint [PDF]
, 2017 Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
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Prediction of Grade Classification of Rock Burst Based on PCA-SSA-PNN Architecture
Geofluids, 2023 The uncertainty and complexity of rock burst brings great difficulties to the prediction of rock burst grades. In order to estimate the risk grades of rock burst, an integrated method combining principal component analysis (PCA) and sparrow search ...
Zhenyi Wang, Yalei Wang, Xiaoliang Jin
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Quantitative Assessment Method Of Rock Burst [PDF]
Advances in Computer Science Research, 2015 Rock burst is one of the three big power disasters in deep mining environment and its quantities assessment method study is a hotspot issue. The analytical mode and method is set up for analysis of rock burst quantitative assessment in Deep Mining environment stress in this paper.
Kai-zhong Huang +3 more
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