超长推进距离工作面双巷布置沿空掘巷技术及应用效果分析

doi:10.13722/j.cnki.jrme.2017.0928

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Abstract

This paper focuses on these problems which are serious waste of resources in super-long two-entry longwall panel，supporting difficultly and suffering power disaster because of jumping mining. In the study，the invention patent“Sequential extraction technology for super-long two-entry longwall panels”firstly proposed，which indicates that it needs to give the suitable parameters including the sizes of the big coal pillar and the small coal pillar，the delayed distance of the gob-side gateroad heading to the working face of the initial panel and the advanced distance of the heading to the working face of the successive panel in engineering practice. Using theoretical analysis and field measurement，the method determining the above parameters and the precise data are gived by combining with the actual engineering background. Next，comparing with original support scheme and parameters，the deformation of the gateroad along gob-side with new technology becomes small by field measurements，which not only meets the need but also creates 880 million yuan of economic benefits in single panel. The results of the study can further provide engineering basis for the mine with the coal seam #5 of 5.7 m thickness and 5 200 m long and similar geological and mining conditions.

Key words： mining engineering super-long panel two-entry system gob-side entry driving sequential mining

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	WANG Zhiqiang
	SU Yue
	SONG Ziyu
	SHI Lei
	SUN Zhongwen

Cite this article:

WANG Zhiqiang,SU Yue,SONG Ziyu, et al. Technology and application effect analysis of gob-side entry driving for super-long two-entry longwall panel[J]. , 2018, 37(S2): 4170-4176.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0928 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4170

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