Wu, Quansen; Wu, Quanlin; Yuan, Anying; Wu, Yongning
Analysis of Mining Effect and Fault Stability Under the Influence of Normal Faults
Teil von
  • Geotechnical and geological engineering, 2021-01, Vol.39 (1), p.49-63
Ort / Verlag
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Springer Online Journals Complete
Keywords: Normal fault; Rockburst; Fault stability; Fault dip Dynamic disasters often occur in coal mining process, while mining disasters near faults are more serious and complex. Faults are distorted by mining, which releases a lot of energy and easily induces dynamic disasters such as rockburst and roadway instability. This study takes the 10,416 working face of Yang Liu Coal Mine (YLCM) as the engineering background, and uses numerical simulation to study the dynamic response characteristics of the working face advancing towards the hanging wall of the normal fault. In addition, the influence law of normal fault dip on fault stability is discussed in this study. The results show that when the working face of the hanging wall is mined and the working face is 30 m away from the fault, the abutment pressure in the middle of the face reaches the maximum. When the width of the fault coal pillar is 20--30 m, the possibility of rock burst on the working face is the greatest. The static load type impact ground pressure is more likely to occur when the hanging wall face advances. The greater the dip angle of fault, the higher the possibility of fault activation. High dip faults are more likely to induce dynamic disasters such as rock burst, mine earthquake, bracket pressure and so on. The research results of this study provide a scientific basis for the division, prediction and prevention of rock burst dangerous zone in mining face under similar geological conditions. Author Affiliation: (1) Jining University, 273100, Jining, People's Republic of China (2) Yankuang Group Limited Company, 273500, Zoucheng, People's Republic of China (3) State Key Laboratory of Mining-Induced Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, 232001, Huainan, People's Republic of China (4) State Key Laboratory of Mining Disaster Prevention and Control, Shandong University of Science and Technology, 266590, Qingdao, People's Republic of China (b) Article History: Registration Date: 06/01/2020 Received Date: 02/16/2020 Accepted Date: 05/31/2020 Online Date: 06/10/2020 Byline:
ISSN: 0960-3182
ISSN: 1573-1529
DOI: 10.1007/s10706-020-01400-8
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Mineral industry, Mining industry, Numerical analysis

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