摘要
为了探测3306回采工作面的应力分布情况,提高冲击地压预警效果,采用震动波主动CT技术对工作面内部应力分布情况进行探测,综合分析掘进扰动、构造、卸压工程等因素的复合影响,得到综合波速反演成果图,所得结果与微震监测系统监测数据比较吻合,为采取有针对性卸压措施提供理论依据,可以有效地保证矿井安全高效生产。
In order to detect the stress distribution on the 3306 workface and improve the early warning effect of rock burst, the seismic wave initiative computed tomography (CT) technology was used to detect the inner stress distribution in the working face, and the comprehensive wave velocity inversion result map was achieved by comprehensively analyzing the combined influence of tunneling disturbance, structure, pressure relief engineering and other factors. The results were consistent with the micro-seismic monitoring data and provided theoretical basis for targeted pressure relief measures, and the technology could effectively ensure the rhine safety and high-efficient production.
作者
詹召伟
沈建波
蔡可强
Zhan Zhaowei1 , Shen Jianbo2 , Cai Keqiang3(1. shandong Jining Yunhe Coal Mine Co. , Ltd. , Jining, Shandong 272155, Chinas 2. Yangcheng Coal Mine of Luneng Coal and Electricity Co. , Ltd. , Shandong Jining Mining Industry Group, Jining, Shandong 272155, Chinas 3. Jining Jinqiao Coal Mine, Jining, Shandong 272155, Chin)
出处
《中国煤炭》
2018年第3期53-56,共4页
China Coal
关键词
冲击地压
CT探测
波速反演
工作面应力分布
rock burst, CT detection, wave velocity inversion, stress distribution in Working face