北京科技大学学报Issue(12)：1533-1537,5.
深孔聚能爆破煤层增透爆破参数研究
Blasting parameter study of deep-hole cumulative blasting to improve coal seam permeability
摘要
Abstract
In view of the technical parameters of cumulative blasting to improve the permeability of coal seams with low permeability, under the condition of constant charge diameter, blast holes were designed with different charge coefficients and blast spacings, and then field test was carried out. The variation of gas drainage pure quantity before and after blasting was comparatively analyzed in blasting influence area, and the influence of blasting parameters on the permeability-increasing effect of coal seams was investigated on the basis of experimental data. It is shown that the permeability-increasing effect of coal seams can be improved by controlling blast-hole radial charge decoupling coefficient, axial charge length, sealing reliability, and blasting times.关键词
煤矿/瓦斯抽放/聚能爆破/煤层/透气性/技术参数Key words
coal mines/gas drainage/cumulative blasting/coal seams/permeability/technical parameters分类
矿山工程引用本文复制引用
郭德勇,吕鹏飞,王义贵,杨睿..深孔聚能爆破煤层增透爆破参数研究[J].北京科技大学学报,2013,(12):1533-1537,5.基金项目
国家自然科学基金资助项目(41072118) （41072118）
