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以冻结砂土为原型进行冻土光面爆破参数的模型试验研究．结果表明，冻土中实施光面爆破是可行的；当炮孔直径３５～５０ｍｍ时，较为合理的光面爆破参数为：炮孔间距５００～７００ｍｍ，装药密集系数０．８～１．２；较为合理的光面爆破装药结构为径向空气间隙和轴向空气垫层不偶合装药．
Model Test Research on Parameters of Freeze - Soil Smooth Blasting with Frozen Sand as Prototype. The results show that it is feasible to carry out smooth blasting in permafrost. When the blasting hole diameter is 35 ~ 50mm, the more reasonable parameters for smooth blasting are as follows: the distance between blasting holes is 500 ~ 700mm, the packing density coefficient is 0.8 ~ 1.2 The more reasonable smooth blasting charge structure is the radial air gap and the axial air cushion are not coupled charge.