煤矿顶板岩体微震分布规律研究及其在顶板分带中的应用——以董家河煤矿微震监测为例

doi:10.13722/j.cnki.jrme.2016.0298

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Abstract

In recent years，microseismic monitoring has been widely used in coal mine. Based on the analysis of the distribution of microseismic events space-time and energy，the mutation of microseismic events were studied in order to determine the key layer of coal mine roof deformation and failure of the control action along the vertical direction. Based on the academic of the key layer of roof was divided two boundaries，taking Dongjiahe coal mine 517 working face as an example，the model of coal mine roof was studied along the vertical direction，And the borehole observation method was compared with the results，the conclusion as followed：The 517 working face roof rock mass is divided into six zones，including caving zone，rock zone，vertical cracks，vertical cracks，bending zone and separation zone. The fractured zone was composed with block zone and vertical cracks zone，bending subsidence zone was composed with vertical fracture zone，bending zone and separation zone. The new methods and ideas were provided for the height of divided coal mine roof.

Key words： mining engineering microseismic monitoring coal mining roof partition fractured zone

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	Articles by authors
	CHENG Guanwen1
	2
	WANG Yue3
	MA Tianhui2
	TANG Chunan2
	CHEN Tong3
	MA Ke4

Cite this article:

CHENG Guanwen1,2,WANG Yue3, et al. Research on the partitioning method of the overburden in coal mine based on microseismic monitoring[J]. , 2017, 36(S2): 4036-4046.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0298 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS2/4036

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