煤矿大巷掘进爆破参数优化  

Optimization of Blasting Parameters for Coal Mine Roadway Excavation

作　　者：史瑞军 Shi Ruijun(Lu'an Chemical Sijiazhuang Co.,Ltd.,Xiyang Shanxi 045300,China)

机构地区：[1]潞安化工集团寺家庄公司,山西昔阳045300

出　　处：《山西化工》2023年第6期150-151,161,共3页Shanxi Chemical Industry

摘　　要：以煤矿大巷掘进为例,在对大巷围岩相关力学参数分析的基础上,提出了凿岩爆破参数设计的原则及理论计算依据;结合实际生产初步设计爆破参数,并对爆破效果进行初步评估;然后,根据爆破效果总结初步设计爆破参数的不足对爆破参数进行优化。实践表明:优化后的凿岩爆破参数在一个循环内的掘进进尺增加至5.04m,炮眼利用率得到显著提升并达到95%。Taking coal mine roadway excavation as an example,based on the analysis of the relevant mechanical parameters of the surrounding rock of the roadway,the principles and theoretical calculation basis for the design of rock drilling and blasting parameters are proposed.Design preliminary blasting parameters based on actual production and conduct preliminary evaluation of blasting effects.Then,based on the blasting effect,this paper summarizes the shortcomings of the preliminary design blasting parameters and optimize them.Practice has shown that the optimized rock drilling and blasting parameters increase the excavation footage to 5.04 m in one cycle,significantly improving the utilization rate of the borehole and reaching 95%.

关 键 词：凿岩爆破 大巷掘进 掏槽爆破 光面爆破 掘进进尺 

分 类 号：TD263.5[矿业工程—矿井建设]