COAL ENGINEERING ›› 2018, Vol. 50 ›› Issue (9): 88-90.doi: 10.11799/ce201809024

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Principle and Control Technology of Coal Wall Spalling of Super Length Working Face Zhang Ling-yun

zhang lingyun   

  • Received:2017-12-18 Revised:2018-03-07 Online:2018-09-20 Published:2018-12-18
  • Contact: zhang lingyun E-mail:zhanglingyun9520@163.com

Abstract: Abstract: In this paper, three gap 85201 large mining height coal mine as the background, through the theoretical analysis, numerical simulation method, the mechanism of large mining height are broken coal wall slope is analyzed, and the mining height are broken, the strength of the supporting, advancing speed for the impact of large mining height are broken coal wall for numerical simulation research, and puts forward the corresponding countermeasures according to the results of the study to further increase the coal wall stability.

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