矿震诱发深井下山保护煤柱区冲击矿压研究  

Research on Rock-burst Induced by Mine Tremor in Downhill Coal Pillar Area of Deep Mine

作　　者：刘建刚[1] 刘振江[1] 曹安业[2] 刘赛[2] 郁钟铭[1] 

机构地区：[1]六盘水师范学院,贵州六盘水553004 [2]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭技术》2017年第2期139-142,共4页Coal Technology

基　　金：贵州省科技厅技术基金项目(黔科合LH字[2015]7619号);国家自然科学基金青年科学基金项目(51204165);采矿工程省级特色重点学科(黔学位合字ZDXK[2015]9号)

摘　　要：基于FLAC2D数值模拟软件对矿震扰动诱发深井下山煤柱区巷道冲击进行研究。结果表明:随着下山保护煤柱形成"孤岛"结构,矿震扰动下巷道围岩应力、位移及塑性区不断增加,越易发生冲击破坏;下山煤柱区高静载起主导作用,强动载只是诱发作用;通过现场矿震规律分析验证了结论的合理性。Research on rock-burst induced by mine tremor in downhill coal pillar area of deep mine by FLAC^2D. The results showed that stress, displacement and plastic area of country rock continuously increased with the formation of ＂isolated island＂ structure of downhill protection coal pillar, also the occurrence of rock-burst easier. The high static load plays a dominant effect while strong dynamic load play a ＇induced function.Rationality of the conclusion is Verified by the analysis of mine earthquake law.

关 键 词：保护煤柱 动载 矿震 冲击矿压 

分 类 号：TD324[矿业工程—矿井建设]