High-sublevel multi-layer mining method of ultrathin copper ore body

Abstract

The invention discloses a high-sublevel multi-layer mining method of an ultrathin copper mine body. Mining channels are reclaimed to be connected with an upper middle section and a lower middle section based on the high-sublevel that the altitude difference of the middle section of the ore body is 50 meters, wherein, the thickness of the ore body bed is 0.4-1m, and the inclined angle of the ore body is above 25 degrees; the ore blocks between the middle sections are divided into extraction ore blocks with 50 meters square; a layered communication channel with small specification the altitude difference of which is 13-17m is reclaimed between the mining channels; the extraction ore blocks between the mining channel are divided into three extraction units; the ores mined by each extraction unit is centralized to the mining channel uniformly; and the ores are sent out from a trench after being transported to a transportation road. The method disclosed by the invention has the advantages that the copper ore resource mining recovery rate is effectively improved, cost is low, land is saved, unification of the resource protection and the environment protection is realized, and use is safe.

Description

technical field [0001] The invention belongs to the mining method of metal copper ore, and in particular relates to a mining method of ultra-thin copper ore bodies with high segmentation and multiple layers [0002] technology field. Background technique [0003] Copper mining is an important link in the production of copper industry. In the process of copper mining, a large amount of solid waste (waste rock and tailings) will inevitably be produced. The traditional copper mining process requires the construction of waste rock yards and tailings dams. Waste rock yards and tailings dams not only occupy There is a large amount of land, and it also seriously damages the natural environment of the mining area. At the same time, many underground copper mines have surface subsidence or subsidence due to mining, which poses major safety hazards and directly threatens people's lives and property safety. In the process of mining, determining a reasonable mining method is the main f...

AI Technical Summary

Problems solved by technology

The advantage is that the investment is low, the operation cost is low, and it is not restricted by geographical location and climatic conditions. The disadvantage is that the leaching cycle is long and the surface ecological damage is relatively serious.