开切眼支护解除条件下围巷稳定性数值模拟研究  

Numerical Simulation for Stability of Surrounding Rock after Removing Supporting in Open-off Cut

作　　者：王强[1,2] 李强[3] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]山西潞安矿业(集团)有限责任公司,山西长治046204 [3]中国矿业大学理学院,江苏徐州221116

出　　处：《煤矿开采》2010年第2期13-15,37,共4页Coal Mining Technology

基　　金：国家自然科学基金重点项目(50634050);国家重点基础研究发展计划(973)项目(2007CB209400)

摘　　要：以漳村煤矿2302综采工作面为工程背景,利用FLAC数值模拟软件,对开切眼支护解除条件下围巷稳定性进行数值模拟研究,得到了切眼附近巷道的位移变化曲线及工作面动压超前和滞后影响范围。研究结果表明,开切眼支护解除有利于矿压控制,提高了煤矿的经济效益。This paper applied FLAC software to numerically simulating surrounding rock stability of open-off cut after removing supporting in 2302 Full-mechanized Mining Face of Zhangcun Colliery. It obtained displacement variation curve of roadway near open-off cut and obtained advanced and belated influence range of dynamic pressure of mining face. Results showed that removing supporting open-off cut was favorable for underground pressure control and economic profit increase.

关 键 词：开切眼 支护解除 稳定性 数值模拟 

分 类 号：TD323[矿业工程—矿井建设]