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在露天台阶坡面的下部钻凿的45°炮孔,其爆破近似于一个自由面条件下的浅孔爆破与深孔爆破。用瞬时载体说的原理和方法,导出45°炮孔爆破参数的计算公式,指导现场爆破,效果较好。
The 45 ° boreholes drilled in the lower part of the open step slope are similar to shallow and deep borehole blasting under a free surface condition. With the principle and method of instantaneous carrier theory, the formula of 45 ° blasthole blasting parameters is deduced to instruct the blasting in the field and the effect is better.