摘要
以红庆河北翼回风巷为背景,对松动圈测试中常用的声波法及钻孔法在深井软岩巷道中的适用性进行了对比研究,并对其支护设计进行了评价。测试结果表明:这2种方法在大埋深软岩巷道的松动圈测试中测试结果基本吻合,2种方法对深井软岩巷道均较为适用;红庆河北翼回风巷的锚杆支护长度超出松动圈范围,支护设计合理。
Based on the return airway in the north wing of Hongqinghe mine, the sonic method and peep instrument were used to test the range of broken rock zone, and the supporting design was evaluated based on the test result. The result shows that： these two methods are applicable to the deep soft rock roadway; the cable length is longer than the range of broken rock zone, and the supporting design is reasonable.
出处
《煤炭技术》
CAS
2018年第1期62-64,共3页
Coal Technology
关键词
松动圈测试
声波法
钻孔窥视法
broken rock zone test
sonic method
peep instrument
