大采高综放开采顶煤运移规律的数值模拟研究  

Numerical Simulation of Top-coal Movement Rule in Fully-mechanized Caving Mining with Large Mining Height

作　　者：祝凌甫[1] 闫少宏[2] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京100013 [2]天地科技股份有限公司,北京100013

出　　处：《煤矿开采》2011年第1期11-13,40,共4页Coal Mining Technology

基　　金："十一五"国家科技支撑计划项目"特厚煤层大采高综放开采成套技术与装备研发":大采高综放开采技术标准体系研究(2008BAB36B11);大采高综放开采工艺技术研究(2008BAB36B01)

摘　　要：采用FALC3D软件模拟研究了塔山煤矿8105工作面在不同采高、不同支护强度下顶煤水平、垂直位移与距煤壁距离间的变化规律。模拟结果表明采高加大顶煤始动点前移、位移量增加,有利于顶煤的破碎;加大支架支护强度对下位顶煤位移量影响较大,有利于下位顶煤的破碎。FLAC3D was applied to researching horizontal and vertical displacement of top-coal varied with distance to coal wall under different mining height and different supporting density in 8105 mining face of Tashan Colliery.Results showed that with mining height increased first movement place of top-coal advanced and its displacement added.Increasing supporting density would add displacement of lower top-coal,which was good for crack of top-coal.

关 键 词：大采高综放开采 顶煤位移 采高 支护强度 

分 类 号：TD823.49[矿业工程—煤矿开采]