急斜特厚煤层动力学失稳现场声发射监测  

Acoustic emission monitoring for dynamic destabilization of heavy and steep coal seam

作　　者：张伟[1,2] 来兴平[1,2] 漆涛[3] 蒋东晖 张戈 田英男 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]教育部西部矿井开采及灾害防治重点实验室,陕西西安710054 [3]神华新疆能源有限责任公司,新疆乌鲁木齐830027

出　　处：《西安科技大学学报》2011年第3期253-257,共5页Journal of Xi’an University of Science and Technology

基　　金：国家自然科学基金(No.10772144;10402033);教育部博士点基金(20096121110001);陕西省重点实验室重点项目(09JS018)

摘　　要：急斜特厚煤层开采扰动区(Mining Disturbed Zone,MDZ)煤岩应力与变形规律复杂,采动影响下局部煤岩层滑移造成应力集中,使煤岩体产生"强烈"的动力学失稳与破坏。以大洪沟煤矿B3+6急斜特厚煤层综放开采为工程背景,通过现场声发射(acoustic emission,AE)监测,分析采动条件下煤岩介质动力学失稳及破坏规律,为制定解危对策提供科学依据。The movement regularity of heavy and steep coal seam disturbed mining zone is complex.Because of the formation of mining strata partial slip gravity stress,the influence caused by coal and rock stress concentration produces ＂strong＂ dynamic destabilization and destruction.Taking B3 ＋6 heavy and steep coal seam fully-mechanized sublevel caving mining in DAHONG coal mine as engineering background,the dynamic destabilization and destruction regularities of coal and rock are analyzed by acoustic emission monitoring for formulating scientific measures.

关 键 词：急斜特厚煤层 动力学失稳 声发射 监测预报 

分 类 号：TD326[矿业工程—矿井建设]