西十采区2^#煤锚杆巷道失稳分析

Analysis of Lose Efficient Reasons of Bolting Support Roadway in 2# Seam East 10 Mining Area

分析了 2 # 煤层锚杆巷道失稳的原因 ,主要是巷道布置方向不当 ,同时受围岩裂隙及采动影响较大。根据失稳原因 ,提出了加长锚杆长度、加大支护密度、使用全长锚固技术等相应措施。

Analyses that the lose efficient reasons of bolting support is the unsuitable layout of roadway in 2 # seam,at same time,be influenced by surround rock crack and mining is bigger,on the basis of the reasone,puts forward the countermeasures of adding bolt lengh and support density,using whole anchor technique.