煤矿深部岩巷掘进爆破试验研究  

Blasting test and study on driving of deep-seated rock tunnels of coal mines

作　　者：胡坤伦[1] 杨仁树[1] 徐晓峰[1] 马鑫民[1] 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第6期856-858,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：教育部高等学校优秀青年教师教学科研奖励计划基金资助项目(2000-91)

摘　　要：分析了影响煤矿深部硬岩巷掘进爆破效果的因素。通过对试验工作面岩石物理力学性能的测试,结合试验工作面的具体条件,提出了不同地质条件下合理的炮眼直径、装药直径、掏槽方式和装药方式。介绍了一个典型工作面试验方法、炮眼布置和爆破参数的选取。试验表明:在条件允许的工作面使用煤矿许用二级水胶炸药具有较优的爆破效果和较高的安全性;采用大直径掏槽炮眼和小直径其它炮眼相结合的炮眼布置形式,可达到较好爆破效率和光爆效果。The factors to influence blasting results of hard and deep-seated rock tunnel excavation at coal mine are analyzed in this paper. Through testing the rocks properties of physics and mechanics and analyzing geological condition of experiment work face, the reasonable size of borehole and charging explosive, cutting form and charging structure under different geological condition are presented. The reasonable testing methods, arranging boreholes and selecting blasting parameters at a typical work face are introduced. It is indicated that using the grade 2 coal mining permissible water-gel explosive at condign work face are provided with better blasting results and higher safety, and the arrangement of combining big cutting-borehole with small rest borehole can attain better blasting efficiency and smooth basting result.

关 键 词：硬岩巷道 掘进爆破 影响因素 爆破参数 应用效果 

分 类 号：TD235[矿业工程—矿井建设]