错层位巷道布置采煤法接续工作面顶板来压步距研究  

Study on Roof Weighting Step of Connected Coal Mining Face with Coal Mining Method with Layout of Stagger Layer Gateway

作　　者：李亚明[1] 李宇统 杜东周[1] 崔帅[1] 宋勇[1,2] 赵景礼[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [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：《煤炭工程》2014年第8期80-83,共4页Coal Engineering

基　　金：北京市大学生科学研究与创业行动计划项目资助(z20131101)

摘　　要：通过总结分析错层位巷道布置下工作面上覆岩层结构和运动特点,得出错层位巷道布置采煤法接续工作面来压时,其顶板的支撑条件与传统留煤柱采煤方法不同。文章在分析错层位巷道布置采煤法接续工作面来压时顶板支撑条件的基础上,建立力学模型,利用经典弹性力学理论计算顶板断裂步距的方法,分析了其与传统采煤法来压步距的差异。最后,用FLAC3D数值模拟进一步模拟验证了分析结果。With a summarization and analysis on structure and movement features of overburden strata above a coal mining face under a layout of mine stagger layer roadway, when a roof weighting came, a connected coal mining face mined with a coal mining method with a layout of a stagger layer gateway showed that a support condition of the roof was different to the conventional mining method with coal pillar left. Based on the analysis on the roof support condition when a mining method with a layout of the stagger layer gateway was applied to a connected coal mining face with roof weighting, a mechanics model was established. A method of a classics elastic mechanics theory was applied to calculate the roof breaking step and analyze the difference with the roof weighting step with the conventional coal mining method. Finally the FLAC^3D numerical simulation was applied to further simulate and approve the analysis results.

关 键 词：错层位 接续工作面 来压步距 数值模拟 

分 类 号：TD322[矿业工程—矿井建设]