Results 11 to 20 of about 6,494 (162)
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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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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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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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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Geofluids, 2021 Rock burst is a serious nonlinear dynamic geological hazard in underground engineering construction. In this paper, a true triaxial unloading rock burst experiment and numerical simulation are carried out on Tianhu granite to investigate the rock burst ...
Jinzhu Hu +5 more
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Meikuang Anquan, 2023 The accumulation and sudden release of elastic energy of near-field surrounding rock is the essence of strain-type rock burst in deep roadway. In order to further understand the mechanism of near-field surrounding rock energy on rock burst disasters, a ...
ZHAO Tongbin, YAO Jinpeng, GUO Lei, GUO Weiyao, ZHANG Yubao
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Study on Monitoring Rock Burst through Drill Pipe Torque
Shock and Vibration, 2015 This paper presents a new method to identify the danger of rock burst from the response of drill pipe torque during drilling process to overcome many defects of the conventional volume of drilled coal rubble method.
Zhonghua Li +3 more
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VIII.—Bursting Rock Surfaces [PDF]
Geological Magazine, 1887 The interesting note by Mr. Strahan in the Geol. Mag. for September, 1887, on explosive slickensides, reminded me of some similar phenomena which were not of unfrequent occurrence near Dent Head and Ribble Head in Yorkshire.In the limestone quarry from which the black marble of Dent is procured the workmen found that, when they were quarrying the lower
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