in this paper, the author discusses what measures should be taken in order to obtain the expected blasting effect in rock tunnelling after the approved blasting agent is used in operation.
本文介绍了煤矿井下巖巷掘进工作面爆破作业改用煤矿许用炸药后,为了保证预期的爆破效果所应采取的措施。
in this paper, first, the chemistry, the expanding pressure and other characteristics of the static blasting agent were studied, then, some useful results were obtained.