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Gas control method of outburst coal seam

A technology for outburst coal seam and gas, applied in the field of gas control, can solve the problems of poor coal seam occurrence conditions, low mining efficiency, large mining depth, etc., and achieves improvement of the excavation speed and the mining speed of the working face, reasonable outburst prevention measures, and enhanced safety. basic effect

Inactive Publication Date: 2016-09-07
杨国和
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AI Technical Summary

Problems solved by technology

[0003] Coal and gas outburst mines usually have the characteristics of large mining depth, complex geological structure, poor coal seam occurrence conditions, and high risk of dynamic disaster accidents, so the mining cost of the mine is high and the mining efficiency is low

Method used

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  • Gas control method of outburst coal seam

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Embodiment Construction

[0023] The core of the present invention is to provide a gas control method for outburst coal seams, which can solve the problem of gas in the upper corner and realize safe and efficient production in the mining face.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Please refer to figure 1 , figure 1 It is a schematic diagram of roadway layout after the gas control method for outburst coal seams provided by the present invention.

[0026] In this paper, the mining area uphill and the mining area downhill are relative to the transportation road or transportation level in the mining area. If the elevation of the mining body is above the roadway, the inclined roadway is called the mining area uphill, otherwise, It is called mining downhill.

[0027] The machine lane refe...

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Abstract

The invention discloses a gas control method of an outburst coal seam. Three low-level gas suction tunnels, three coal roads and one mining face upper corner high suction tunnel are distributed on an outburst dangerous working surface to form a one-face and multi-tunnel region gas comprehensive control layout. Rapid tunneling of the coal roads is shielded by the pre-pumped coal road strip coal body gas of the crossing holes of the low-level gas suction tunnels and the coal seam gas of a backstoping region is pre-pumped back by drilled boreholes down the seam of the current coal seams of the three coal roads; coal seam stress is released and the gas of an upper corner and a goaf is pumped by the mining face upper corner high suction tunnel, so that the safe and efficient production of a mine shaft is realized. With the adoption of a management method, a partial outburst prevention measure is cancelled and a tensioned takeover layout is alleviated; the tunneling speed of the coal roads and the backstoping speed of a working surface are improved and the safe foundations of coal and gas outburst mine shafts are enhanced; powerful technical guarantees are provided for the safe and efficient production of the mine shafts.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a gas control method for outburst coal seams. Background technique [0002] In recent years, with the increase of coal mining depth and mining intensity and scale, the number of coal and gas outburst mines has also increased rapidly, resulting in frequent coal and gas outburst accidents, which seriously threatens the "green" of coal. The industrial structure adjustment pace of "safe, efficient and efficient mining" has become a major problem in my country's effective control of coal mine gas accidents. [0003] Coal and gas outburst mines usually have the characteristics of large mining depth, complex geological structure, poor coal seam occurrence conditions, and high risk of dynamic disaster accidents, so the mining cost of the mine is high and the mining efficiency is low. The most effective regional technical measure to eliminate outburst risks is to mine the protect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 刘庆军杨国和徐永佳范学文
Owner 杨国和
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