摘要
为了研究孤岛工作面见方期间冲击地压发生机理,防止冲击地压的发生,以山东能源集团梁宝寺矿3210工作面为例,通过FLAC3D数值模拟与现场布置应力监测对孤岛工作面见方期间应力分布进行研究,得出能量的积聚与传递过程、工作面见方期间煤体应力峰值及回采对超前影响距离,通过研究安全回采了3210孤岛工作面原煤25万t。
In order to study the mechanism of rock burst and prevent the occurrence of rock burst during the encounter of isolated island working face,taking 3210 working face of Liangbaoshi Mine of Shandong Energy Group as an example,the stress distribution during encounter of isolated island working face was studied by FLAC^3D numerical simulation and stress monitoring of field layout,and the process of energy accumulation and transmission,peak stress of coal body during encounter of working face and mining pairs were obtained.Advanced influence distance,through the study of safe mining 321 island working face 250,000 tons of raw coal.
作者
吴绍辉
Wu shao-hui(Shandong Energy Group,Shandong Jinan 250000)
出处
《山东煤炭科技》
2019年第1期179-181,共3页
Shandong Coal Science and Technology
关键词
冲击地压
见方
孤岛面
应力监测
微震
rock burst
encounter
island working face
stress monitoring
micro quake
