Coal and gas outburst coal seam gas extraction and filling collaborative mining method

Abstract

The invention relates to the technical field of coal mining production equipment, in particular to a coal and gas outburst coal seam gas extraction and filling collaborative mining method. The coal and gas outburst coal seam gas extraction and filling collaborative mining method comprises the following step that according to coal seam geological conditions and industry standard regulations, an extraction project can be performed above a working seam or below a working seam. The coal seam gas extraction and filling collaborative mining method can reduce the coal and gas outburst coal seam mining cost, the gas extraction project and a mining project with filling can be achieved through drilling, special construction is not needed any more for the two projects, and the coal mining efficiencyis improved. Especially for some small and medium-sized enterprises, the problem that the investment cost is too high in the early stage of resource exploitation is solved, the gas disaster risk is reduced, the earth surface ecological environment is protected, the roadway engineering investment cost can be saved, the enterprise production efficiency is improved, and the method has a wide application prospect.

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...

AI Technical Summary

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

Images