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1983年,开滦林南仓矿在西翼轨道下山和下分组下山施工中,由于推广了“两光三斗”(即:激光定向、光面爆破、耙斗装岩、箕斗提升、漏斗排矸)技术,使工期大大提前,成本显著降低,实现了安全快速施工,质量全优,工效由0.7m~3提高到1.3m~3,火药消耗比预算定额降低4.2kg/m,木材消耗降低0.4m~3/m。 一、概况 西翼采区轨道下山,在1981年10月份施工中,因煤_(14)底板涌水,工程做至一中交叉点位置(斜200m)而停止。1983年
In 1983, due to the popularization of “two light and three fighting” (ie, laser orientation, smooth blasting, rake bucket rock loading, skip lifting, funnel dumping ) Technology, the construction period was greatly advanced, the cost was significantly reduced, and the safe and rapid construction was realized. The quality was excellent and the work efficiency was increased from 0.7m ~ 3 to 1.3m ~ 3. The gunpowder consumption was reduced by 4.2kg / m from the budget ration and the timber consumption was reduced by 0.4 m ~ 3 / m. I. Overview West Wing mining orbit down the mountain, in October 1981 construction, due to coal _ (14) floor gushing water, the project to a midpoint of the intersection (oblique 200m) and stop. 1983