论文部分内容阅读
南非金矿的储量计算仅限于矿山在开采过程中要充分揭露的矿体范围.一般情况是:只计算可能采出的矿块和每个矿块回采面上平均一年能采出的矿量.在一年末,要对矿量作出估算并加以公布,同时也可以用来制定规划、计划、进行选择性开采和随时掌握品位变化情况.勘探工作是按照薄层矿体的一般方式进行的,即可在大约300×400英尺~2范围的矿体上掘进平巷和天井.随着开采深度的增加和压力、温度的不断上升,工作面也要相应地缩小.运输巷道都布置在矿体下盘,天井
The South African gold reserves are limited to the range of ore bodies that are to be fully revealed during the mining process, and the general situation is that only the mines that may be produced and the amount of ore that can be mined on average per year on each mining face At the end of the year, the amount of ore to be estimated and published, but also can be used to develop planning, planning, selective mining and keep abreast of grade changes.Exploration work is in accordance with the general method of thin ore body, The tunnels and pavements can be drilled in the ore body of about 300 × 400 ft 2 to 2. With the increase of mining depth and the increase of pressure and temperature, the working face should also be reduced correspondingly. Under the plate, patio