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为了贯彻执行“采掘并举,掘进先行”的方针,努力提高天井掘进速度,我矿在推广吊罐掘进经验的基础上,又针对本矿矿体赋存特点,将吊罐法用于掘进倾角为45～6°的沿脉天井。截至目前为止,我矿斜吊罐掘进作业线已掘进天井十八个,总长八百多米,效果良好。 一、作业条件 矿体产于震旦系含磷岩系中,顶板为白云岩,f=8～10;底板为页岩,f=3～5。矿石由底板至顶板依次为:黑
In order to implement the guideline of “both mining and heading forward”, and strive to improve the speed of the tunneling, on the basis of popularizing the experience of lifting the cans, the mine also aimed at the existing features of the orebody in this mine, 45 ~ 6 ° along the pulse wells. Up to now, mine mine inclined tank tunneling operation line has been dug into the patio eighteen, a total length of more than 800 meters, the effect is good. First, the operating conditions of ore bodies produced in the Sinian phosphorus-bearing rock series, the roof is dolomite, f = 8 ~ 10; floor is shale, f = 3 ~ 5. Ore from the floor to the roof followed by: black