用钻孔瓦斯涌出初速度法进行浅孔预测的可行性研究(点击标题下载全文) 已下载

作者:王恩义;岑梅英;张广彦

作者单位:平顶山煤业(集团)有限责任公司十矿

摘要:针对目前使用钻孔瓦斯涌出初速度法(q值法)预测煤与瓦斯突出所存在的问题,进行了多钻孔、多孔深的现场试验,研究了用钻孔瓦斯涌出初速度法进行浅孔预测的可行性.根据实测的不同深度的曲线变化,确定了替代的测试孔深及突出临界值.

关键词:浅孔瓦斯预测;瓦斯涌出初速度;突出临界值;

DOI:10.16186/j.cnki.1673-9787.2005.04.004

分类号:TD713;

The Feasible Research on the Shallow Hole Prediction by Using Drilling Gas Inrush Initial Velocity Method

Abstract:This article focuses on the current problem of predicting coal and gas inrush and will carry out several on- location drilling tests of differring varieties and depths.Furthermore, this article will study the feasibility of shallow hole prediction by using the drilling gas inrush initial velocity method (q value) .Through the utilization of actual data curve variation of differing hole depths, the critical value of the testing depth and inrush can be determined.

 
 
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