A self-stabilizing hole-shaped stope layout mining method in deep high-stress environment

Abstract

The invention discloses a deep part high-stress environment self-stabilizing arched stope arrangement mining method, which comprises the following steps of (1) ore block arrangement; (2) mining-cutting engineering; (3) stopping; (4) ventilation; (5) ore removal work; (6) filling work; (7) self-stabilizing arched ore pillar stopping. The method provided by the invention belongs to the deep part high-stress environment self-stabilizing arched stope arrangement mining method capable of effectively improving the stope stability and providing the effective safety guarantee for the deep part high-stress ore deposit safe exploitation.

Description

technical field [0001] The invention relates to a mining method, in particular to a self-stabilizing hole-shaped stope layout mining method in a deep high-stress environment. Background technique [0002] With the depletion of shallow resources, mineral mining is gradually moving to the deep. According to statistics and forecasts, more than 50 metal mines will be mined below 1000m underground during the "13th Five-Year Plan" period in my country. At present, in the design and construction, the shape of the mine house and pillars in the mining method is a regular cuboid, and the regular shape will lead to the existence of sharp corners, resulting in stress concentration at the sharp corners of the pillar after mining and blasting, and poor stability of the pillar. The mining of deep deposits is faced with the special environment of high well temperature, high geostress and high well depth, which brings many safety and technical problems. Traditional mining methods have been ...

AI Technical Summary

Problems solved by technology

At present, in the design and construction, the shape of the mine room and the pillar in the mining method is a regular cuboid, and the regular shape will lead to the existence of sharp corners, resulting in the concentration of stress at the sharp corner of the pillar after mining blasting, and the stability of the pillar is poor

The mining of deep deposits is faced with the special environment of high well temperature, high geostress and high well depth, which brings many safety and technical problems. Traditional mining methods have been difficult to meet the requirements of safe, efficient and low-cost mining of deep deposits. Deep metal deposits need to be innovated mining method, forming a mining method suitable for the high-stress environment of deep deposits

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