摘要
采用数值计算方法,对浅埋薄基岩条件下的三软煤巷不同支护条件下的围岩稳定性进行数值计算,通过数值模拟,比较巷道开挖前后的变形以及应力,讨论锚杆的加入、锚杆间排距、锚索的加入等各个因素对巷道的受力及变形的影响,为现场支护技术改革起到重要的指导作用。
The enclosing rock stability of shallow coal bed three soft coal roadways under different supporting condition was carried out numerical calculation with the numerical calculation method. Through numerical modeling, compared with the deformation and stress fore and after excavation, the influences of anchor arm addition, array pitch of anchor arm and anchor wire addition to the tunnel stress and deformation were discussed, which provide guiding function to the field supporting technology reformation.
出处
《山西建筑》
2008年第17期98-99,共2页
Shanxi Architecture
关键词
浅埋薄基岩
数值计算
支护
三软煤巷
稳定性
shallow thin bedrock, numerical calculation, supporting, three soft coal roadway, stability
