北京科技大学学报Issue(10)：1281-1286,6.DOI:10.13374/j.issn1001-053x.2014.10.001
断层对深孔聚能爆破煤层增透的影响
Effect of fault on deep-hole cumulative blasting to improve coal bed permeability
摘要
Abstract
This article aims at the influence of fault structure on permeability-improved effect and coal-bed deep-hole cumulative blasting safety. The dependence of crack generation and growth upon fault was analyzed on the base of theoretical analysis, numerical simulation and field test. The effect of fault on blasting safety was discussed from two aspects of gas occurrence and blasting energy propagation. Numerical simulation results demonstrate that fault affects blasting crack growth and stress wave propagation. Field test shows that permeability-improved effect in the fault-affected zone is 1. 6 times better than that in no fault-affected zone, and that the fault zone, which easily causes punching phenomena, has important influence on blasting safety.关键词
断层/爆破/瓦斯/煤层/渗透性/安全Key words
fault/blasting/gas/coal beds/permeability/safety分类
矿业与冶金引用本文复制引用
郭德勇,张慧杰,吕鹏飞,张革伟..断层对深孔聚能爆破煤层增透的影响[J].北京科技大学学报,2014,(10):1281-1286,6.基金项目
国家自然科学基金资助项目(41072118) （41072118）
教育部科学技术研究重大项目(311022) （311022）
