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四川石棉队推广葫芦炮爆破法生产效率提高36%左右四川石棉队今年的山地工作任务很大,坑道穿过岩层一般为6- 7级,最硬也有高达11级。为了解决手掘在硬岩层中掘进提高效率的问题,所以石棉队海子坪工区开始进行试验推广,葫芦炮”爆破法,据初步试验,在6-8级岩石中,爆破效率高达100-120%,进尺比原来提高36%左右、炮眼个数比原来减少3-4个。在这次试验推广中初步解决了硬岩掘进中提高效率的问题。现正在各工区试验推广中。(材英麟)
Sichuan asbestos team to promote gourd gun blasting production efficiency increased by 36% Sichuan asbestos team this year’s mountain work a great task, the tunnel through the rock formation is generally 6 to 7, the hardest has up to 11. In order to solve the digging in hard rock excavation to improve the efficiency of the problem, so the asbestos team Haiziping Ping work area to promote the experiment, gourd gun "blasting method, according to preliminary tests, in 6-8 rock, the blasting efficiency of up to 100-120% , The footage than the original increase of about 36%, the number of blast holes reduced by 3-4 than in the initial promotion of this trial to solve the hard rock tunneling to improve efficiency in the trial is now in the work area. )