摘要
针对声波法测试巷道围岩松动圈的方法,在理论分析超声波围岩裂隙探测仪及其工作原理的基础上,总结了基于超声波围岩裂隙探测的巷道围岩分类方法,并利用超声波围岩裂隙探测仪在煤矿井下实测了巷道不同位置的松动圈大小,综合得出该巷道的松动圈范围平均为1.7 m。
Based on the method of acoustic wave method for testing the loose rock of surrounding rock of roadway,based on the theoretical analysis of ultrasonic surrounding rock crack detector and its working principle, the classification method of surrounding rock of roadway based on ultrasonic surrounding rock crack detection is summarized. The rock fissure detector measured the size of the loose ring in different positions of the roadway under the coal mine. The comprehensive range of the loose ring of the roadway was 1.7 m.
引文
[1]文磊,杨仕教,刘超,等.深井巷道围岩体声波特性及其规律[J].金属矿山,2014(4):74-77.
[2]魏勇.复杂地质条件下巷道围岩变形监测技术[J].煤矿现代化,2016(2):38-40.
[3]闫光启.软岩巷道支护破坏分析及控制技术[J].能源技术与管理,2012(6):69-70;75.
[4]王敏,王凯,侯振功.钻孔成像方法在巷道围岩松动圈测试中的应用研究[J].矿业安全与环保,2012,39(4):31-33;92.
[5]李玉文,王书刚,孙利辉,等.浅谈松动圈测试与巷道支护设计[J].煤炭工程,2007(8):41-42.
[6]党少卿.大断面煤巷支护工艺探究[J].机械管理开发,2019,34(1):142-144.