立井冻土光面爆破的模型试验研究

Study of Smooth Blasting in Frozen Soil of the Shaft by Simulation

利用模型进行了立井冻土光面爆破的试验。试验参数取孔深、孔距和最小抵抗线。

Smooth blasting in frozen soil of the shaft is studied through models. The experiment parameters chosen are the depth of holes, hole spacing and the minimum burden. By experiments, a spacing to burden ratio(E/W) and specific charge required for fine smooth blasting effect were obtained.