综放采场顶煤破坏影响因素的数值试验研究  

Numerical Simulation of Effect Factors of Top Coal Damage at Fully Mechanized Mining Face

作　　者：刘宁[1] 杨永康[1] 康天合[1] 

机构地区：[1]太原理工大学采矿工艺研究所,太原030024

出　　处：《煤炭技术》2013年第1期65-67,共3页Coal Technology

基　　金：山西省科技攻关(工业)项目(2011032101504);国家自然科学基金资助项目(50974093;51174141)

摘　　要：针对公乌素地区16号煤层实际情况,运用正交试验方法和FLAC3D软件对顶煤破坏影响规律进行研究,得到对工作面控顶区内顶煤破坏影响因素的主次排序:埋深>煤单轴抗压强度>工作面长度>支架支撑力>煤厚。According to the actual storage conditions of No. 16 coal seam in Gongwusu area, the orthogo- nal experimental design method and FLAC3D were applied to study the effect law of top coal damage. Re- search showed that the primary and secondary sequence of the five factors on top coal damage effects in fully mechanized top coal caving mining was ： the coal deep 〉 the uniaxial compressive strength of coal 〉 the length of working surface 〉 the anchorage force of stents 〉 the thickness of coal seam.

关 键 词：顶煤破坏 综放开采 FLAC3D 

分 类 号：TD823[矿业工程—煤矿开采]