三面采空综放采场采动阶段动力灾害机理  

Dynamic disaster mechanism at mining stage in a fully mechanized top coal caving face with three goafs

作　　者：侯玮[1] 霍海鹰[1] 田端信[2] 李智慧 

机构地区：[1]河北工程大学,河北邯郸056038 [2]武安市国土资源局,河北邯郸056000 [3]冀中能源邯矿集团,河北邯郸056000

出　　处：《辽宁工程技术大学学报（自然科学版）》2012年第5期673-677,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助(50774012);河北省自然科学基金资助(D2010001000)

摘　　要：三面采空综放采场采动阶段受到高应力作用容易引发冲击地压、顶板大面积来压等动力灾害,通过研究岩层运动与矿压关系,孤岛工作面掘进、回采过程中覆岩空间结构形式及其运动规律,揭示工作面开采初期和开采期间岩层运动诱发动力灾害机理.结合工程实践,基于微震定位监测结果验证三面采空综放采场采动阶段诱发动力灾害规律,揭示应力分布、变化,为治理矿压动力灾害提供理论基础和技术手段.The hazards of rock burst and large roof caving are ease to occur at mining stage in a fully mechanized top coal caving face with goafs in three sides due to high stress.Through the study of strata movement and mine pressure,isolated working face excavation,overlying strata spatial structure and its movement characteristics,it reveals the strata movement induced dynamic disaster mechanism at initial mining stage and during coal mining operation.

关 键 词：矿山压力 覆岩空间结构 岩层运动 微地震 冲击地压 采动阶段 工作面见方 动力灾害 

分 类 号：TD73[矿业工程—矿井通风与安全]