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我队新台门矿区,原在南北走向的矿体中设计一个勘探小竖井.矿体倾角与形状均不规则,其顶盘为石英砂岩,底盘为石灰岩.探矿任务要求,以最短的距离穿达矿体,并尽快地进行地下中段水平探矿,故将竖井位置选择在沿矿体南西方向,距离矿体60公尺的顶盘石英砂岩中,其岩石强度相当于f=10～12,组织结构较为细密,爆破性不甚良好.竖井掘进断面为3.0×2.4平方公尺,采用单罐笼提升,其提升格断面为1.8×1.31平方公尺,梯子格断面为1.8×0.94平方
In our new Taimen mining area, we designed a small exploration shaft in the north-south ore body.The ore body is irregular in both inclination and shape, and the top plate is quartz sandstone and the chassis is limestone.It is the questing mission to reach the shortest distance Ore body, and as soon as possible to the underground exploration of the middle level, it will choose the shaft location along the ore body along the southwestern direction, 60 meters away from the ore body top quartz sandstone, the rock strength equivalent to f = 10 ~ 12, the organizational structure More compact, explosive is not good.Shaft tunneling section of 3.0 × 2.4 square meters, using a single cage to enhance the upgrade section of 1.8 × 1.31 square meters, the cross-section of the ladder is 1.8 × 0.94 square