A mining method for mining inclined manganese ore layers in ore bodies with mobile cover supports

Abstract

The invention relates to a mining method for mining an inclined manganese mineralization bed in an ore body through a mobile shield support. The method comprises the following steps: exploring the orebody, tunneling a return airway and a transportation roadway as well as a mining roadway communicated with the transportation roadway in the ore body, arranging a shield support in the mining roadway, forming a working space and a mobile shield support in the shield support, enabling the working space to move along a stope face, mining manganese ore in the working space, and transporting the orevia the transportation roadway. With the adoption of the technical scheme in the invention, only the return airway, the transportation roadway and the mining roadway need to be tunneled, the mining operating process is simplified, the drifting operating time is saved, and the labor efficiency is improved. Therefore, fresh air can continuously flow into the mining roadway via the return airway or the transportation roadway, and the operating environment and operating safety in the return airway are ensured, so that continuous mining operations can be ensured due to the mining operation of the inclined manganese mineralization bed, the mining operation efficiency is improved, the shield support can be repeatedly used, and the supporting raw materials are saved.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a mining method for mining an inclined manganese ore layer in an ore body by moving a shield support. Background technique [0002] In the prior art, mining methods such as open-pit mining method, caving mining method, ore-retaining mining method, and filling mining method are generally used for the mining of manganese ore layers. Among them, the open-pit mining method is the most widely used, and it refers to that in the mining process, The mining method mainly relies on the stability of the surrounding rock itself or a small number of ore pillars and artificial pillars to support the goaf. When the open-pit mining method is used, the stability of the surrounding rock of the ore body is high. However, if the manganese ore layer in the ore body is inclined relative to the horizontal plane, the roof collapse accident is likely to occur due to the poor stability of the s...

AI Technical Summary

Problems solved by technology

When the open-pit mining method is used, the stability of the surrounding rock of the ore body is high. However, if the manganese ore layer in the ore body is inclined relative to the horizontal plane, the roof collapse accident is likely to occur due to the poor stability of the surrounding rock of the ore body. Larger safety risks. At the same time, low resource recovery rate and high excavation rate affect the production efficiency of mining enterprises

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