摘要
采用数值模拟软件FLAC2D,对软岩巷道锚杆支护后围岩变形和破坏规律进行了数值模拟,并分析了支护后围岩的应力、位移及塑性区的变化情况。将数值模拟结果与现场实测结果进行了系统分析,结果表明,对于软岩回采巷道采用锚杆支护,能够有效控制围岩深部的大变形,保持巷道的稳定。
With the application of numerical simulation software FLAC2D, this paper has simulated the deformation and failure regularity of surrounding rocks with bolt support for soft rocks roadway, and also analyzed the surrounding stress, displacement and plastic zone accordingly. After analyzing the results from both numerical simulation and field actual measurement, the author finds that bolt support for soft rock roadway can effectively control the large deformation of surrounding rocks in depth and stabilize the roadway surrounding rocks.
出处
《煤》
2008年第3期5-6,39,共3页
Coal
关键词
软岩
回采巷道
数值模拟
锚杆支护
soft rocks
roadway
numerical simulation
bolt support
作者简介
庄永晓（1982-），男，山东临沂人，助理工程师，从事矿建设计工作。
