摘要
以新集二矿-750 m水平过F10断层掘进煤巷为例,利用数值模拟软件对掘进过程中围岩的破坏特征进行研究。结果表明:煤巷过断层时,断层容易发生"活化",且煤巷掘进对下盘围岩的影响程度大于上盘,应当着重注意断层下盘围岩的支护加固。
Taking Xinji No.2 mine-750 m level passing through F10 fault roadway as an example, the failure characteristics of surrounding rock in tunelling process was studied by the numerical simulation software. The results show that the fault is prone to ＂activate＂ when the roadway passes through the fault, and the influence degree of coal roadway excavation on the surrounding rock of footwall is greater than that of the hanging wall. It is necessary to pay attention to the support and reinforcement of the surrounding rock of the footwall.
出处
《煤炭技术》
北大核心
2017年第8期68-70,共3页
Coal Technology
基金
安徽省高等学校省级自然科学研究重大项目(KJ2014ZD11)
深部岩土力学与地下工程国家重点实验室开放基金(SKLGDUEK1313)
国家自然科学基金项目(41472235)
关键词
煤巷掘进
断层
围岩
coal roadway driving
faults
surrounding rock
