Coordinated mining method of gas drainage and filling in coal and gas outburst coal seams

Abstract

The present invention relates to the technical field of coal mining production equipment, in particular to a coal and gas outburst coal seam gas drainage and filling cooperative mining method, the method includes: according to the coal seam geological conditions and industry standards, the drainage project can be selected above the mining coal seam, You can also choose to construct a drainage project below the mining coal seam; the method of coal seam gas drainage and filling mining can be used to reduce the cost of coal and gas outburst coal seam mining, and the method of the present invention can use drilling to realize gas extraction. The implementation of drainage projects and filling mining projects no longer requires their own special construction, which improves the efficiency of coal mining, especially for some small and medium-sized enterprises, solves the problem of excessive investment costs in the early stage of resource mining, reduces the risk of gas disasters, While protecting the ecological environment of the surface, it can also save the input cost of the well and roadway project, improve the production efficiency of the enterprise, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of coal mining production equipment, in particular to a coal and gas outburst coal seam gas drainage and filling collaborative mining method. Background technique [0002] Before coal and gas outburst coal seams are mined, it is generally necessary to construct long-distance drilling into the mining seam in the adjacent rock or coal seam to extract the gas in the coal seam, so as to reduce the gas content in the coal seam and avoid gas accidents. At the same time, in the process of coal seam mining, due to the massive development of coal, caving zones, curved subsidence zones, and fissure zones are formed above the goaf, which often spread to the surface area, resulting in the settlement of surface farmland, villages or railway facilities, which may cause It will lead to different degrees of damage to the ecological environment and affect the living and living of residents. In order to reduce the adverse ef...

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Problems solved by technology

This increases the cost of mining coal and gas outburst coal seams to a certain extent, and due to the limitation of construction progress, it also affects the high-yield and high-efficiency performance of coal mining. Especially for some small and medium-sized enterprises, the initial investment cost of resource mining is too high Become a bottleneck restricting the development of enterprises

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