摘要
为保障8218工作面进风巷围岩的稳定,采用FLAC3D数值模拟软件进行锚杆支护参数分析。结合数值模拟结果及巷道地质条件,确定巷道采用锚网索+W型钢带的支护方案,进行支护参数设计,并进行围岩变形监测分析。结果表明:8218工作面进风巷围岩变形量小,顶板无离层现象,保障了巷道围岩的稳定。
In order to ensure the stability of surrounding rock of air inlet roadway in the 8218 working face, FLAC3D numerical simulation software is used to analyze the bolt support parameters. Combined with the numerical simulation results and roadway geological conditions, the support scheme of bolt mesh cable + W-shaped steel belt is determined, the support parameters are designed, and the surrounding rock deformation is monitored and analyzed.The results show that the deformation of surrounding rock of air inlet roadway in the 8218 working face is small, and there is no separation of roof, which ensures the stability of surrounding rock of roadway.
作者
王东
Wang Dong(Huayang Group Xinjing Company,Shanxi Yangquan 045000)
出处
《山东煤炭科技》
2021年第10期28-30,共3页
Shandong Coal Science and Technology
关键词
软弱
锚杆
模拟
支护
weak
bolt
simulation
support
