摘要
基于红林煤矿3918运巷现场条件,介绍了超声波测试松动圈的测试原理、测试方法及测试过程,同时运用岩层探测记录仪更加直观地记录围岩松动圈状况。最后运用计算机模拟运巷围岩松动圈。实测与模拟相结合,得出围岩合理的松动圈范围,为确定合理的锚杆支护参数提供了依据,同时也为类似条件的松动圈测试提供了经验。
Base on the site conditions of 3918 haulage roadway in Honglin Colliery,the paper introduced the measurement principle,the measuring method and the measuring procedure of the released circle.Meanwhile recorded the released circle condition intuitively by using the rock layer survey recording instrument,finally simulated the released circle condition of 3918 haulage roadway by using the computer simulation.Actual unified with the simulation,we obtained result about the range of released circle,which could provide the basis to set up the rational bolt support parameters and could provide the practical experiences for the released circle measurement in the similar mine roadway conditions.
出处
《煤炭科技》
2010年第1期59-61,共3页
Coal Science & Technology Magazine
基金
国家自然科学基金项目(50874042
50674046)
关键词
松动圈
超声波测试
岩层探测
数值模拟
released circle
ultrasonic measure
rock strata probe
numerical simulation
