摘要
中煤塔山煤矿3-5#煤层回采巷道受集中应力作用,顶板和帮部锚杆破断情况频发,巷道顶板浅部离层量达到300 mm,帮部位移达到500 mm。为提高回采巷道浅部围岩支护效果,对现用回采巷道锚杆结构件性能进行测试分析,通过实验室检测、现场试验应用和支护效果分析,对锚杆、锚杆关键构件及关键支护参数进行了优化。
The mining roadway of the 3-5# coal seam in Tashan Coal Mine of China Coal is affected by concentrated stress, the roof and side bolts are broken frequently. The shallow separation of roadway roof is up to 300 mm, and the displacement of slope is up to 500 mm. In order to improve the support effect of shallow surrounding rock of mining roadway, the performance of anchor bolt structure of existing mining roadway is tested and analyzed. Through laboratory testing, field test application and support effect analysis, the key components of anchor bolt, anchor bolt key structure and support parameters are optimized.
作者
何少帅
He Shaoshuai(China Coal Datong Energy Co.,Ltd.,Tashan Coal Mine,Shanxi Datong 037000)
出处
《山东煤炭科技》
2022年第12期16-18,21,共4页
Shandong Coal Science and Technology
关键词
锚杆
支护
优化
anchor bolt
support
optimization
