煤矿安全2012，Vol.43Issue(10)：131-134,4.
坪上煤矿不同孔径超前钻孔有效排放半径的测定
Determination of Effective Emission Radius of Advancing Hole with Different Diameter in Pingshang Coal Mine
宋军1
作者信息
- 1. 山西省煤炭厅基建局,山西太原030006
- 折叠
摘要
Abstract
The paper introduces the outburst prevention principle of advancing emission hole,and elaborates on the measurement method and the applicable conditions of the effective radius in detail.According to the characteristics of hardness and thickness of 3# coal seam in Pingshang coal mine,the paper innovates existing borehole gas flow measuring emissions hole method.Using this method,effective emission radiuses of advancing hole with different diameter in 3# coal seam are got,which provides the basis for the design of mine local prevention outburst emission,and improves the outburst prevention measures results.关键词
局部防突措施/超前钻孔/有效排放半径Key words
local prevention outburst measure/advancing hole/effective emission radius分类
矿业与冶金引用本文复制引用
宋军..坪上煤矿不同孔径超前钻孔有效排放半径的测定[J].煤矿安全,2012,43(10):131-134,4.
