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.
大不偶合系数的炮孔装药爆后。气体静压是产生裂纹的主要原因。
Gas dead stress is mainly reason for crack occurrence when greater decoupling charge factor is adopted for blasting hole.
介绍了海上爆炸排淤填石陆上装药机具的主要结构特点、参数和构造以及陆上装药施工方法。
The paper introduces the main structural features and parameters of on-land charging device for blasting toe-shooting offshore and on-land charging method.
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