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在1963年增产节約运动中,我們对如何改进和提高凿岩爆破效率的問題,进行了系統地分析研究,找出了爆破效率不高的原因,并采取了一些改进措施,取得了良好的效果:去年下半年与上半年相比,凿岩爆破效率提高了25%;炸药、雷管和导火线的消耗分別降低了15.6%、15.3%和14.6%;全年矿山的直接工效比計划提高了16.7%。通过一年的实践,不仅在技术改进上获得良好效果,在技术管理上,也初步取得了一些經驗。現在分述于下: (一) 凿岩爆破的几点技术措施1.提高掌子面风压。掌子面风压过去由于风管設
In the 1963 production increase and conservation campaign, we systematically analyzed and studied how to improve and improve the efficiency of rock blasting, and found out the reasons for the low blasting efficiency, and took some improvement measures and achieved good results. Effect: Compared with the first half of last year, the efficiency of rock drilling increased by 25%; the consumption of explosives, detonators, and fuses decreased by 15.6%, 15.3%, and 14.6%, respectively; the annual direct ergonomic ratio of mines increased by 16.7. %. Through one year of practice, not only has good results been achieved in the improvement of technology, but also some experience has been gained in the management of technology. Now it is described as follows: (1) Several Technical Measures for Rock Blasting 1. Increase the wind pressure on the face. Face pressure in the past due to wind control