其中涉及到光面爆破参数的选择与试验确定，掏槽眼的布置方式、装药结构、起爆手段、管道效应、爆破效果及特点。
The selection and test determination of smooth blasting parameters, layout of snubbers, charging structure, initiation device, tubing effect, blasting effect and its properties are involved.
试验结果证明，复合不耦合装药结构可以降低工作面温度和减小对周围保留冻土爆破振动的损伤。
The test results have proved that the compound non-coupling charging structure can reduce the temperature of the working face and the blasting vibration damage on the reserved frozen soil.
介绍dyz 220型地下装药车的主要技术参数、结构组成与工作原理及其工业试验。
This paper presents main technical parameters, structural composition, principle of work and industrial test of Model DYZ 220 charging car for the underground mine.
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