底角锚杆控制巷道底臌的数值模拟  

Numerical simulation of floor heave with corner anchor control

作　　者：肖福坤[1] 张纯杰[1] 高立伟[2] 岳洋洋[2] 

机构地区：[1]黑龙江科技学院黑龙江省煤矿深部开采地压控制与瓦斯治理重点实验室,哈尔滨150027 [2]开滦(集团)有限责任公司唐山矿业分公司,河北唐山063000

出　　处：《黑龙江科技学院学报》2012年第2期131-134,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：教育部科学技术研究重点项目(210064)

摘　　要：随着煤矿开采深度的增加,巷道底臌现象越来越严重。为了寻找一种有效的控制底臌方法,借助数值模拟手段对施加底角锚杆的深部巷道进行受力分析。结果表明:对底板实加底角锚杆后,应力区向巷道深部转移,围岩应力对底板的影响降低,巷道变形量减小。模拟结果及现场应用均证明在条件适合地区,底角锚杆控制技术可以有效控制巷道底臌。Aimed at seeking an effective method of controlling increasingly serious floor heave arising from greater mining depth, this paper describes the use of numerical simulation method to analyze the deeper roadway under the stress due to bottom anchor application. The results show that the application of bottom anchor in roadway floor results in transference of the stress to the deeper area of roadway, less in- fluence of rock stress on floor, and less deformation of roadway. Both numerical simulation and practical application prove that, the bottom anchor-controlling technique, when used in areas with suitable condi- tions, affords an effective solution to floor heave.

关 键 词：巷道 底臌 底角锚杆 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]