软弱结构面对爆破效果影响及其控制

摘要

首先分析了软弱结构面的存在易产生冲炮、大块、残留根底及门坎等不良爆破效果的原因,然后根据实际情况采取调整爆破参数、增加孔底装药密度、选择适合的爆破位置以及浅孔辅助中深孔爆破等技术措施.工程实际应用效果表明,所采取的控制方法是可行的,具有重要的工程实用价值.%The paper firstly analyzed the reason for the weak structural plane easily producing the adverse blasting effects such as toward blasting,large fragment,toe rock,threshold and so on. Then,according to the practical situation,some technical measures were taken by adjusting the blasting parameters, increasing the charge density in the bottom of the hole, choosing an adaptive blasting location and assisting deep-hole blasting with short-hole. The practical application into engineering indicated that the measures above are feasible and have an important practical value.