露天台阶爆破宽孔距布孔探讨

Wide-space Disposal Bore Hole in the Beach Blasting of the Open Air

宽孔距爆破设计的关键在于选取合理的炮孔密集系数m,根据宽孔距破岩机理,利用几何关系,推导出最佳的炮孔密集系数m=2 3,并提出了比较系统的爆破设计方法,包括炮孔平面布置参数确定,起爆顺序等。

The key is how to select reasonable bore hole compression coefficient m in the design of wide-space blasting. Based on crashing rock mechanism of wide-space, this paper utilizes a geometrical relation to deduce the optimum bore hole compression coefficient m = 2 √3, and advances systemic method of blasting design, including how to confirm the plane disposal parameters of bore hole and triggering sequence.