摘要
为科学确定金鼎煤矿巷道掘进过程中锚杆支护参数和支护方案,采用单孔声波法对井底车场巷道不同断面进行了松动圈测试。依据围岩松动圈测试结果和松动圈支护理论,确定了支护参数和支护方案。结果表明,单孔声波法能够探测围岩松动圈范围,可据此指导巷道支护参数的确定。
To scientifically determine parameters and scheme of bolt supporting during roadway drivage in Jinding Mine,single-hole acoustic method was used to test released circle of different roadway section of shaft bottom.Based on results and supporting theories of released circle of surrounding rock,parameters and scheme of supporting were determined.Results show that,single-hole acoustic method can detect the range of released circle of surrounding rock,based on this,references for supporting parameters determining can be afforded.
出处
《中州煤炭》
2011年第11期9-11,共3页
Zhongzhou Coal
关键词
松动圈
单孔声波法
围岩分类法
锚杆支护
released circle
single-hole acoustic method
surrounding rock classification method
bolt supporting
