Two-step mechanization cooperative high-section non-solid waste mining process for controlling ground pressure house column

Abstract

The invention discloses a two-step mechanization cooperative high-section non-solid waste mining process for controlling a ground pressure house column, which comprises the following steps of: (1) mining a house and a mine column in two steps, wherein a two-step mining semicircular arch is formed in sequence in the mining process to maintain the stability of a quarry; (2) forming a trackless slopetrack mining system and a full tailing cementing filling system outside the quarry; (3) using a high-section medium-deep hole breaking technology to carry out ore caving at the quarry, wherein the first mining section is divided into an upper part and a lower part, a section rock drilling heading is tunneled firstly; (4) transferring the caved ore to a quarry pass through a remote control scraperto finish ore extraction; (5) after the quarry mining is finished, constructing a filling retaining wall at the lower part of the section, and filling the quarry gap at the upper part; (6) after thelower section mining is finished, digging a rock drilling roadway at the upper part to start mining the upper section. The method can effectively control the mine pressure of the roof, the workers donot directly work under the roof, the mining safety is high, the mechanization degree is high, and the mining efficiency is high.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a two-step mechanized cooperative high-section solid-waste-free mining process with controlled ground pressure, room and pillar. Background technique [0002] A review of relevant literature at home and abroad shows that mines can realize green mining by adopting the filling mining method. At present, the layered filling mining method (layer height of 2-4m) is mainly used in China to mine broken ore bodies, and the stage and subsequent filling mining method (stage 50~60m high) to mine hard and stable ore bodies. When choosing a mining method for a moderately stable ore body, the General Mining Design and Research Institute recommends that mines adopt the layered filling method, or take the risk of adopting the stage open and then fill mining method. There are currently the following problems in adopting the layered filling method and the stage emptying and subsequent filling mini...

AI Technical Summary

Problems solved by technology

[0006] The mining technical problem to be solved by the present invention is that existing mining methods have technical problems such as stope roof pressure cannot be effectively controlled, low degree of mechanization, and equipment matching. Ground pressure room-pillar two-step mechanized collaborative high-section solid-waste-free green mining process to achieve safe, efficient and solid-waste-free green mining

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