基于装药形状优化的中深孔爆破控制

Middle-deep Hole Blasting Control Basing on the Optimization of Charge Shape

在工程实践的基础上,提出了A、B、C、D四种不同的装药方式。同时理论确定四种装药方式各自的排距、孔距、孔深、装药高度等一系列爆破参数。在确定装药高度的情况下,这种装药方式调整装药线密度分布在3.0~6.0 kg/m之间,即保证小孔的做功能力又防止大孔单孔药量过大引起振速超标。并且在某地铁渡线段进行了具体的操作应用,达到了缩短工期、减少飞石、提高频率等目的。尤其经济上实现了"浅孔问题深孔化",技术上实现"深孔问题浅孔化"。为解决此类问题提出了一个可行性方案。

Four diferent types of filling charge,named A,B,C and D,are put forward basing on engineeringpractice. The row distance,pitch,hole depth,shot elevation and a series of parameters tively. In the case of determining shot elevation,the way of charge adjusts the charge density distribution in the3. 0 -6. 0 kg/m to ensure the work capacity of small holes and prevent vibration velocity over standard caused bytoo much single hole charge of big holes. Then according to a subway line segment sjDecific operating practices,thismethod got the aim of shorting the duration,reducing the flying rocks,increasing the fcially it realized ^ the shaiow hole problem considered as tlie deep hole problems ^ in econhole problems considered as the shallow hole problems” in technology terms. Afeasible scheme is proposed to solve this kind of problem.