深部超长工作面矿震响应规律及传播机制研究  

Response Law and Propagation Mechanism of Mine Earthquakes in Deep and Ultra-Long Working Face

作　　者：张艺耘 李成海 唐磊 杨海涛 熊洪恩 周强 ZHANG Yiyun;LI Chenghai;TANG Lei;YANG Haitao;XIONG Hongen;ZHOU Qiang(Maiduoshan Coal Mine,National Energy Group Ningxia Coal Industry Company,Yinchuan,Ningxia 750408,China;School of Mines,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China;Xuzhou Hongyi Technology Development Co.,Ltd.,Xuzhou,Jiangsu 221008,China;China Coal Technology and Engineering Group Chongqing Research Institute Co.,Ltd.,Chongqing 400037,China)

机构地区：[1]国家能源集团宁夏煤业公司麦垛山煤矿,宁夏银川750408 [2]中国矿业大学矿业工程学院,江苏徐州市221116 [3]徐州弘毅科技发展有限公司,江苏徐州市221008 [4]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《矿业研究与开发》2024年第9期9-17,共9页Mining Research and Development

基　　金：国家重点研发计划项目(2016YFC0801407)。

摘　　要：深部超长工作面应力环境复杂,开采扰动诱发强矿震,威胁矿井安全开采。为探究超长工作面开采过程中矿震的时空响应特征及不同能级、不同区域的震动波传播规律,以麦垛山煤矿130608超长工作面为例,基于井下微震监测台网布置,采用理论计算、数据分析的方法深入分析。研究结果表明:超长工作面的微震事件主要分布在生产班及工作面超前100~300 m区域,相同震动波传播速度下,微震能级越大,传播距离越大,而相同震动波传播距离下,微震能级越大,传播速度越大;相比较下,位于采空区震源处的震动波震动速度和衰减系数最大,超前工作面顶底板岩层区域震动波传播最快;进一步确定了震动波传播的主控因素和不同能级下震动波传播的衰减公式,并提出震动波传播的危险性判别方法,确定了震动波传播的危险速度为0.018 m/s,危险距离为120 m。The stress environment of deep and ultra-long working face is complex,mining disturbance induces strong mine earthquake,threatening the safety of mine mining.In order to explore the temporal and spatial response characteristics of mine earthquake and the propagation law of vibration wave in different energy levels and different regions during the mining process of ultra-long working face,the 130608 ultra-long working face of Meidoushan Coal Mine was taken as an example.Based on the arrangement of underground microseismic monitoring network,theoretical calculation and data analysis were adopted for in-depth analysis.The results show that the microseismic events of the ultra-long working face are mainly distributed in the production shift and the working face 100-300 m ahead.Under the same propagation speed of vibration wave,the larger the microseismic energy level is,the larger the propagation distance is.While under the same propagation distance of vibration wave,the larger the microseismic energy level is,the larger the propagation speed is.In comparison,the vibration velocity and attenuation coefficient of the vibration wave located at the source of the goaf are the largest,and the vibration wave propagates the fastest in the area of the top and bottom strata of the advanced working face.The main control factors and attenuation formulas of vibration wave propagation under different energy levels were determined,and the risk identification method of vibration wave propagation was proposed.The dangerous speed of vibration wave propagation is determined to be about 0.018 m/s,and the dangerous distance is 120 m.

关 键 词：超长工作面 矿震 时空分布 震动波传播速度 衰减系数 

分 类 号：TD324[矿业工程—矿井建设]