房柱式开采上覆岩层破坏与垮落机理  

Mechanism on the failure and caving of roof strata in pillar and house mining

作　　者：孟达[1] 王家臣[1] 王进学[2] 

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]中国有色工程设计研究总院,北京100038

出　　处：《煤炭学报》2007年第6期577-580,共4页Journal of China Coal Society

摘　　要：针对房柱式开采及回采情况,提出了带柱帽的无梁楼盖体系计算模型,对煤柱和顶板内的应力、位移进行了详细计算及破坏过程分析.提出了某个煤柱首先破坏后,会产生连锁破坏现象.同时采用相似材料模拟试验和FLAC3D数值计算验证了计算模型的正确性.Operating against the condition of roof strata in pillars and house mining, brought forth the calculating model of the non-beam floor with post cap which calculated the stress, displacement detail and the failure process of the coal pillar and roof strata. Also brought forth the coal pillar would occur chain failure phenomenon while one of pillar destroyed first. Verified the accuracy of the calculating model by using the similar material simulating experiment and FLAC3D numerical simulation.

关 键 词：房柱式开采 岩层破坏 无梁楼盖 连锁破坏 

分 类 号：TD823.51[矿业工程—煤矿开采]