摘要
本文针对西北某矿井深部矿井地压大,临近巷道双巷掘进受矿压重叠影响,对锚杆的支护效果的要求更高的难题,通过采用钻孔窥视、锚杆拉拔试验等多种方法对巷道支护锚杆锚固性能的影响研究,为深部矿井双巷掘进巷道支护设计提供了技术支撑。
In this paper, due to the high ground pressure in a deep mine in Northwest China and the overlap of ground pressure in double roadways near roadways, higher requirements are put forward for the supporting effect of bolts. Through the use of borehole observation, bolt pull-out test and other methods to study the anchorage performance of roadway anchor bolts, it provides technical support for the design of roadway support in deep mine double tunneling roadway.
作者
常明
Chang Ming(Liyazhuang Coal Mine, Huozhou Coal and Electricity Group Co., Ltd)
出处
《同煤科技》
2019年第3期36-37,40,共3页
Datong Coal Science & Technology
关键词
双巷掘进
锚固性能
钻孔窥视
锚杆拉拔
double tunneling
anchorage performance
borehole observation
bolt pull-out
