Stope structure arrangement mode suitable for underground mine high productivity and low cost subsequent filling

Abstract

The invention discloses a stope structure arrangement mode suitable for underground mine high productivity and low cost subsequent filling. Underground ore block is divided into panels (1), the interior of each panel (1) is divided into 3-6 continuous stopes (2) and a panel stud (3), a panel crown pillar (4) and a panel sill pillar (5) are arranged in a vertical direction, ores (7) in the stopes (2) drop into a stope trenches (11) through blasting, a carry-scraper passes through an ore removal roadway (10), ore loading is performed in ore removal access road (12), ores are transported to drift roadway (8) and are discharged into an orepass (14). After the stope ore removal, tailings pass through a filling roadway (15) and are subjected to pipeline filling to a dead zone to form a panel filling body (6). After the filling of the panel stopes (2) is finished, adjacent panel stopes (2) are stoped, and subsequently the formed dead zones are filled. After the filling of the adjacent panel stopes (2) is fihished, a part of the panel studs (3) is recovered, dead zone formed by the panel studs are filled, and finally the dead zones are eliminated. The stope structure arrangement mode has the advantages that the mining intensity can be improved by utilizing limited ore body distribution area, the production capacity is increased, and mining production and dead zone filling treatment costs are reduced.

Description

technical field [0001] The invention relates to an underground mine mining method, in particular to a stope structure arrangement suitable for a subsequent filling mining method suitable for high-efficiency mining of large-scale underground mines. It is suitable for non-coal underground mines to use limited ore body distribution area to increase mining intensity, expand production capacity, and reduce mining production and empty area filling processing costs. Background technique [0002] There are three basic methods of underground mining in metal mines: one is the open field method, the other is the caving method, and the third is the filling method. Various mining methods have their own conditions of use: open-field mining method has large production capacity, low mining cost, and poor safety; filling mining method has low production capacity and high production cost, and is often used to mine high-value ores; caving mining method has high production capacity, However, t...

AI Technical Summary

Problems solved by technology

[0003] At present, the mining method of open-pit mining followed by filling has been tested in China, and remarkable achievements have been made, mainly including the method of open-pit mining followed by filling in the downward large hole stage, the method of segmented open-pit mining followed by filling mining, and the method of mine mining followed by filling mining. methods, etc., but there are still limitations on production capacity and production cost. The main reason is that the stope adopts two-step mining. After the first-step mining, it is necessary to use high-strength tailings to cement the goaf to create conditions for the second-step mining. This results in increased cost and complicated process, which hinders the further increase of production capacity of underground mines

Images