摘要
基于九里山矿15采区轨道下山的工程地质条件及变形破坏特征,采用FLAC3D软件模拟分析了巷道围岩破坏机理,发现采动影响下巷道围岩特别是两帮破坏范围较大,因此提出锚注加固方案,并进行了工程实践。通过数值模拟和现场实测,认为该加固方案效果明显。
Based on engineering and geological condition, deformation and failure characteristics of track dip of No. 15 mining area in Ji- ulishan Coal Mine,failure mechanism of surrounding rock was simulated and analyzed using FLAC3D software,the results show that the failure zone of surrouding rock especially in two ribs of the roadway is large under influencing of mining process. Thus, a plan of grouting and bolting reinforcement was proposed and applied in engineering practice. The plan has a good effect in controlling the deformation and failure of the roadway through simulation and field measurement.
出处
《中州煤炭》
2013年第3期10-11,48,共3页
Zhongzhou Coal
关键词
大断面岩巷
锚注加固
数值模拟
rock roadway with large section
grouting and bolting reinforcement
numerical simulation
