断层破碎带冒顶巷道支护技术研究

doi:10.11799/ce201803011

Abstract

Abstract: Due to the serious fracture zone of the fractured zone, there are a lot of accidents in coal mine roadway in the process of tunneling. In order to ensure the stability of surrounding rock and roof safety during the construction and use of roadways, combining with roadway roof caving accident situation of NuanQuan coal mine 10101 working face , analyzes the fault fracture zone of roof caving range, and the targeted treatment scheme. In order to solve the problem of broken collapse, filling fractured area by grouting with high water material were put forward, the roof area of broken rock and rock around the bond as a whole, to restore its carrying capacity; In order to solve the excavation and use of process safety, pipe roof advance combination U type steel roof support technology were put forward strengthening roof fall section and collective functions. After the project,the work surface is monitored, no two roof fall accident, verify the rationality of the reinforcement method.

CLC Number:

TD353

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URL: http://www.coale.com.cn/EN/10.11799/ce201803011

http://www.coale.com.cn/EN/Y2018/V50/I3/42

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Study on support technology of roof fall tunnel in fault fracture zone

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