介绍了采用控制爆破技术施工位于井底车场及主要运输大巷的信集闭峒室，条件复杂，岩性变化大，要求安全性高。
This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.
介绍了某煤矿井底车场软弱破碎岩体孤立岩墙失稳破坏工程背景。
The failure background of an isolated rock wall in soft fractured rock mass of a mine shaft bottom is introduced.
采用钻孔套芯应力解除法在赵楼煤矿井底车场位置选点进行了地应力测量。
In-situ stress was measured by overcoming method in borehole in Zhaolou Coal Mine shaft station.
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