弹性震动波CT透视技术现场应用与分析

Field application and analysis of elastic seismic wave computed tomography technology

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.