Structural arrangement of multi-stope synchronous mining of steeply inclined thick and large ore bodies with stable ore rocks

Abstract

The invention discloses a structural arrangement of multi-stope synchronous mining of steeply inclined thick and large ore bodies with stable ore rocks. The structural arrangement is divided into a plurality of panel areas (20) along the ore body trend, and the panel areas (20) are divided into 4 stopes; a vein-crossing transportation roadway (5) is tunneled in the center position of the bottoms of the panel areas (20); a plurality of ore removal access ways (11) are tunneled at two sides of the vein-crossing transportation roadway (5) to penetrate through all stopes and to be served as shoveling and transporting passages during stope ore removal; and an ore collecting trench (15) and a bottom pulling space (7) are arranged at the bottom of each stope. All stopes in the panel areas (20) share one vein-crossing transportation roadway (5). The structural arrangement provided by the invention has the advantages that only one vein-crossing transportation roadway needs to be arranged in thecenter of the bottoms of the panel areas, and all stopes in the panel areas share the vein-crossing transportation roadway, so that the thousand-ton mining and cutting ratio is reduced by about 35%,the mining preparation work specific gravity is reduced by about 29%, and the mining and cutting engineering quantity is effectively reduced.

Description

technical field [0001] The invention relates to a stope structure arrangement for underground mining, and is particularly suitable for efficiently and quickly mining steeply inclined thick ore bodies with stable ore rocks. Background technique [0002] The mining of steeply inclined thick ore bodies is a world mining technical problem. For this kind of orebodies at home and abroad, the high-stage open-field subsequent filling method and the high-section open-field subsequent filling method are used. However, whether it is the mining method of segmental emptying and then filling, or the mining method of stage emptying and then filling, it is often the mining method of separating one and mining one, and a mining house is arranged with multiple vein-piercing roadways and a bottom structure. The large amount of engineering and limited shoveling operations make it impossible to further improve the production efficiency of ore blocks in this type of mining method. Therefore, for...

AI Technical Summary

Problems solved by technology

[0006] (1) Two adjacent stopes are mined at the same time, and the exposed area of ​​the goaf is relatively large, especially when both sides of the second-step mining are filling bodies, the stability of the stope is poor;

[0007] (2) The side road along the vein is only arranged in the footwall of the ore body, and the stope is a single-headed working face. The rock drilling, blasting, and scraper ventilation in the stope are relatively difficult, and the operating environment is harsh;

[0008] (3) Two adjacent stopes share one mining roadway and one chute, and the left and right stope scrapers are likely to interfere with each other when they extract ore at the same time, which is not conducive to improving the scraping efficiency

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