摘要
针对贾郭煤矿矿井顺槽及轨道大巷的巷道变形、锚杆应力、煤岩体应力、松动圈进行了现场测试,分析结果认为:贾郭煤矿属于Ⅱ级稳定围岩类型,稳定性较好,短锚杆喷混凝土支护,可满足矿井安全生产要求。
Roadway deformation, anchor stress, coal-rock mass stress, and broken zones of crossheading and track allays were tested on the spot in Jiaguo mine. The results showed that the surrounding rock stability was at II-level so that short anchor shotcrete support could satisfy the requirements of safety production of the mine.
出处
《山西煤炭》
2013年第5期44-45,53,共3页
Shanxi Coal
关键词
支护方式
围岩变形
应力
松动圈
supporting pattern
surrounding rock deformation
stress
broken zone
