Coplanar complete-mining local-filling mining method of mine resources

Abstract

The invention discloses a coplanar complete-mining local-filling mining method of mine resources. The coplanar complete-mining local-filling mining method specifically comprises the steps: the same mixed mining faces are arranged in one mining block one by one, and coal resources are stoped through methods of complete mining and local filling; fully mechanized mining caving sections and solid filling sections are arranged in sections in the mixed mining faces, and harmonious mining of a whole working face is achieved through transition hydraulic supports between the fully mechanized mining caving sections and the solid filling sections; and the length of the mixed mining faces is 200-400 m, the length of the solid filling sections is one third to one second the length of the mixed mining faces, and mining roadways in one sides of the solid filling sections are reserved through a gob-side entry retaining technology to serve as mining roadways in one sides of the fully mechanized miningcaving sections of the adjacent mixed mining faces. The advantages of fully mechanized mining and filling mining are combined, the mine pressure behavior intensity of a gob-side entry under the deep high stress environment can be remarkably weakened, gob-side entry deformation and the section coal pillar loss are reduced, meanwhile solid waste such as gangue and coal ash are treated, and safe andefficient greening mining of the coal resources can be achieved.

Description

technical field [0001] The invention relates to the technical field of gob-side retaining and solid filling mining, in particular to a local filling mining method for full mining of mine resources on the same plane. Background technique [0002] With the high-intensity mining of coal resources, the shallow coal resources in my country are gradually exhausted, and coal mining is gradually shifting to the deep. However, the deep surrounding rock stress is huge, the mine pressure is strong, and the roadway is usually difficult to maintain. In order to ensure the stability of the mining roadway in the existing fully mechanized caving mining, it is usually necessary to reserve a section of 30-60m to protect the coal pillar, which causes a serious waste of coal resources. Although solid filling mining can effectively control the mine pressure in deep stopes and deal with solid waste such as gangue and fly ash, it is difficult to achieve high production and high efficiency because ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a mine resource full-mining mining method on the same plane, which can solve the environmental pollution caused by ground gangue and the difficulty of retaining roadway support along the gob, improve the recovery rate of coal resources, and realize the safety and high efficiency of coal resources. Green Mining

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