高水平应力条件下大断面巷道支护技术研究

doi:10.11799/ce201407012

COAL ENGINEERING ›› 2014, Vol. 46 ›› Issue (7): 34-36.doi: 10.11799/ce201407012

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Large Section Roadway Supporting Technology in High Horizontal Stress

Received:2013-07-09 Revised:2013-08-02 Online:2014-07-10 Published:2014-08-01

Abstract

Abstract:

For Changping mine,under high horizontal stress large cross section along the bottom roadway is difficult to support the status quo, through stress testing, drilling peep, numerical simulation methods such as roadway roof rock failure analysis. According to the analysis of the conclusions, put forward 43042 roadway along the top layout support programs, and by setting the station measured surface displacement, roof separation, rock-bolt dynamometer and other methods,its stability were analyzed to verify the 43042 roadway programs reasonable.

Key words: Roadway supporting, geostress, High horizontal stress, Drilling peep, Numerical Simulation

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URL: http://www.coale.com.cn/EN/10.11799/ce201407012

http://www.coale.com.cn/EN/Y2014/V46/I7/34

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Large Section Roadway Supporting Technology in High Horizontal Stress

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