地下采煤对巍山山体裂缝影响的有限元分析  

Finite element analysis of effect of underground coal mining on landslide of the Wei Mountain

作　　者：单晓云[1] 姜耀东[1] 王乐杰[2] 赵毅鑫[1] 洪益清[3] 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院 [2]煤炭科学研究总院唐山分院,河北唐山063012 [3]开滦矿业集团公司,河北唐山063000

出　　处：《煤炭学报》2008年第1期23-27,共5页Journal of China Coal Society

基　　金：国家自然科学基金重大资助项目(50490272);国家重点基础研究发展规划(973)资助项目(2002CB412705);国家自然科学基金资助项目(10572147);国家科技支撑计划课题资助项目(2006BAK03B06)

摘　　要：以开滦矿区赵各庄矿附近的巍山山体裂缝为研究对象,在归纳、分析以往资料的基础上,通过现场监测、数值模拟及综合因素耦合分析等方法,对巍山山体裂缝的成因、发展规律及其与地下采矿等因素的关系进行了研究.重点探讨了赵各庄矿井下开采对巍山山体稳定性的影响.数值模拟和现场监测结果表明:在巍山坡脚不被破坏的情况下,巍山不会产生大规模的滑塌破坏;巍山山体的破坏主要是山体南侧的各煤层开采引起山体产生向南方向的水平位移,由于山体各部位的位移不协调,在山坡上产生拉应力,形成山坡上的陡坎.A study on the landslide of the Wei Mountain near the Zhaogezhuang coalmine in Kailuan mining area was made in respects of the cause, development law and relationship with underground mining by using the methods of in-situ monitoring, numerical simulation and analysis of comprehensive coupling factors based on summarization and analysis of previous information, and the effect of the underground mining in this coalmine on the stability of the Wei Mountain was particularly stressed. The results of numerical simulation and in-situ monitoring show that, under the condition that the slope base is not damaged, no large-scale landslide would take place with the mountain, and the main cause led to damage of the mountain is that the underground coal mining in the south of the mountain leads to horizontal movement of the mountain toward south direction, just because of the non-coordinated movement in different parts of the mountain, the tensile stress happens at the slope and then causes the form of the landslide on the slope.

关 键 词：地下开采 滑坡 稳定性 数值模拟 

分 类 号：TD325.4[矿业工程—矿井建设]