某万吨级大爆破在岩碴清运中发现的问题分析

Analyses on Some Problems Existed in a Large-scale Chamber Blasting

介绍了某万吨级特大型双层多排药室爆破在爆后岩碴清运中发现的问题,分析了山体中部上、下层药室之间局部爆破质量差的主要原因,探讨了上层药室爆破对下层药室爆破的影响作用机理,并初步提出了大型双层多排药室爆破设计应遵循的原则。

In this paper, some problems existed in a large-scale blasting with double-stage and multiple-row chambers, which were found during excavating and transporting broken rock, is introduced, the main reasons for the unsatisfactory blasting effect at the place between upper stage chambers and lower stage chambers are analyzed, the influencing effect of blasting of the upper stage chamber to blasting of the lower chamber is discussed, and some principles that should be obeyed in designing large double-stage and multiple-row chambers blasting.