深井难采煤层上行开采的数值模拟  

Numeral simulation on ascending mining method of complicated coal seam in deep mine

作　　者：曲华[1] 张殿振[2] 

机构地区：[1]山东科技大学,山东泰安271019 [2]新汶矿业集团有限责任公司,山东新泰271219

出　　处：《矿山压力与顶板管理》2003年第4期56-58,共3页Ground Pressure and Strata Control

基　　金：教育部中青年骨干教师资助计划项目

摘　　要：采用有限元数值模拟研究方法 ,对深井高应力难采煤层上行卸压开采作用效应进行了模拟研究。表明上行卸压开采可显著降低高应力难采煤层的采动应力水平 ,支承压力集中系数从 3 .3 3降低到 2 .1 8,可以根本上消除冲击地压、复合顶板管理、巷道支护等多重高地压难题 。Simulating the effects of ascending mining method in mining complicated coal seam under high stresses with numeral simulation method of finite elements, this paper finds ascending mining method can decrease the stress level of coal in high stress zone. And the concentrated parameter of abutment pressure which is 3.33 can be decreased to 2.18. This method of mining coal is very effective to difficulties of rock burst, compound roofs and tunnel supports.

关 键 词：深井 高应力 上行开采 数值模拟 

分 类 号：TD324[矿业工程—矿井建设]