Ore stoping method for reducing mining and cutting work amount of VCR method
A technology of engineering quantity and ore, which is applied in surface mining, underground mining, special mining, etc., can solve the problems that are not conducive to strong excavation of mines, continuous mining of strong mining, large mining and cutting engineering volume, and low operating efficiency.
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[0016] Combine below Figure 1 to Figure 6 , to further illustrate the present invention.
[0017] As shown in the figure, an ore recovery method for reducing the amount of mining and cutting works by the "VCR" method includes the following steps: Step 1, excavate the slope to the stratified depth of the ore body mining; Step 2, according to the mine geology and ground pressure The management plan determines the number of multi-middle sections to be mined; Step 3, construct the bottom structure in the lowermost middle section, and the multi-middle section mining shares a bottom structure; Step 4, in the upper part of each middle section, excavate the rock drilling chamber; Step 5, according to each middle section Large-diameter deep-hole rock drilling is carried out at a high height; in step six, ore mining, the stope adopts the mining method of "three mining and one mining", mining from bottom to top.
[0018] The conventional "VCR" mining method mining standard engineering ...
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