通顺煤矿02179工作面松动圈卸压范围研究

摘要

Taking No.02179 working face in Tongshun Mine as an engineering background, by reasonable drill-hole arrangement, ultrasonic testing with single hole was used to observe the range of loosing zone of surrounding rock. Then the observation data were analyzed to determine the range. Finally, field test was used to further determine the destruction scale in the condition. The results show that the ultrasonic testing with single hole could rapidly test the loosing zone range of the surrounding rock with ideal practicability and superiority.%以通顺煤矿02179工作面为工程背景,经过合理的钻孔布置,采用单孔超声波测试方法对围岩松动圈范围进行了观测;并对观测数据进行了分析研究,确定了围岩松动圈范围;最后通过现场试验进一步确定了该条件下的围岩松动破坏范围. 研究结果表明,单孔超声波测试方法能够快速准确地测试巷道围岩松动圈范围,具有较好的实用性和优越性.