摘要
运用FLAC2D有限元数值模拟的方法,研究和分析断层对采场矿压分布规律的影响。模拟结果表明:断层带附近煤岩体破碎、裂隙发育,在采动影响下断层处于"活化"状态,使处于其影响范围内的底板岩层应力场受挠动,并随着工作面推进,对底板巷道影响越来越剧烈。文章通过实验研究,确定了断层带的影响范围,对采动影响下底板巷道的合理布置具有一定的借鉴与指导意义。
The influence of faults on the stress distribution of coal mines was analyzed and studied by FLAG^2D finite element numerical simulation. The test indicated： surrounding rock around the belt of faults produced many horizontal crannies, The fault activation is induced during coal mining, reduced the stress of floor roadway in the faults influenced bound produced deformation. The influence is intensified with reduction of distance between the coal mining work and the faults. According to research, we could ascertain the influenced bound of faults, and it provided references to layout of floor roadway in the coal mining.
出处
《煤炭技术》
CAS
北大核心
2010年第2期96-98,共3页
Coal Technology
关键词
数值模拟
断层
底板动压巷道
numerical simulation
faults
floor roadway under locomotive
