半煤岩巷爆破快速掘进参数分析与应用

Analysis and Application of Blasting Quick Driving Parameters for Semi Coal and Rock Roadway

针对半煤岩巷常规施工方法掘进速度慢,造成采掘接续紧张的问题,对煤岩体在爆破载荷作用下的应力状态进行了理论分析,并在合理选择半煤岩巷快速掘进爆破参数的基础上进行了工程实际应用。结果表明,工程应用效果良好,超过了预期的月进度,为保障半煤岩巷快速掘进、生产正常接续创造了条件。

Aiming at the problem of slow excavation speed and tense excavation connection caused by conventional construction method of semi coal and rock roadway,this paper theoretically analyzed the stress state of coal and rock mass under blasting load.Practical engineering application was carried out on the basis of reasonable selection of blasting parameters for rapid excavation of semi coal and rock roadway.The results show that the engineering application effect is good,exceeding the expected monthly pro-gress,and creating conditions for ensuring the rapid excavation of semi coal and rock roadway and normal production continuity.