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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.

Pending Publication Date: 2021-03-19
TONGLING ZHONGDU MINING CONSTR
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Problems solved by technology

However, the "VCR" method has the following disadvantages that cannot be avoided: 1. The bottom structure is constructed separately in the middle of each mining section for ore extraction, and the amount of mining and cutting work is large.
3. It is not conducive to continuous mining of strong excavation and strong mining in mines, and the operation efficiency is low
4. Large mining investment

Method used

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  • Ore stoping method for reducing mining and cutting work amount of VCR method
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  • Ore stoping method for reducing mining and cutting work amount of VCR method

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Embodiment Construction

[0016] Combine below Figure 1 to Figure 6 , to further illustrate the present invention.

[0017] As shown in the figure, a method of ore recovery that reduces the amount of mining and cutting work by the "VCR" method includes the following steps: Step 1, digging the ramp to the layered depth of the ore body mining; Step 2, according to mine geology and ground pressure The management plan determines the number of multiple middle sections; step 3, construct the bottom structure in the lowermost middle section, and multiple middle sections share a bottom structure; step 4, excavate rock drilling chambers in the upper part of each middle section; step 5, according to each middle section Large-diameter deep-hole rock drilling is carried out at a high altitude; step six, ore mining, the stope adopts the mining method of "every three mining one" and mining from bottom to top.

[0018] Conventional "VCR" mining method mining quasi-engineering layout is as follows: Figures 1 to 3 ...

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Abstract

The invention discloses an ore stoping method for reducing mining and cutting work amount of a VCR method. The ore stoping method includes the steps that step one, a slope ramp is tunneled to the layering depth of ore body stoping; step two, the number of multi-middle-section stopes is determined according to a mine geology and ground pressure management scheme; step three, a bottom structure is constructed in the lowermost middle section, and multiple middle sections share one bottom structure for stoping; step four, a rock drilling chamber is tunneled in the upper portion of each middle section; step five, large-diameter deep hole rock drilling is conducted according to the height of each middle section; and step six, ore stoping is conducted, specifically, stoping is conducted from bottom to top by adopting a stoping mode that one stoping is conducted on every three stopes in a stope. The ore stoping method for reducing the mining and cutting work amount of the VCR method has the advantages of being safe, low in operation intensity, economical, efficient and simple and convenient in procedure.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to an ore recovery method for reducing the mining and cutting engineering amount of the "VCR" method. Background technique [0002] In the mining process of mines, the "VCR" method has the advantages of high labor productivity, less stopes required, and the mine only needs to adopt one mining method to use the mining room and pillars back and forth. It is widely used in mining steeply inclined thick mines body or various extremely thick ore bodies. Conventional "VCR" mining method mining quasi-engineering layout: stope vertical ore body direction layout, division of mine pillars and stope length. The rock drilling chamber is excavated at the top of the middle section, and the bottom structure is excavated. The ore is shoveled to the loading chamber by the scraper. But the "VCR" method has the following disadvantages unavoidably: 1. The bottom structure is constructed separately in...

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Application Information

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IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 高威胡彦华王卫生张传余张亚锋钱芳
Owner TONGLING ZHONGDU MINING CONSTR
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