Water disaster prevention and treatment design method for mine taking coal bed as main aquifer

A design method and water layer technology, applied in mining equipment, design optimization/simulation, drainage, etc., can solve problems that have not been clearly reported, and achieve the effect of low implementation cost, simple and linear method, and reasonable scheme design

Active Publication Date: 2017-07-21
CHINA UNIV OF MINING & TECH
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Problems solved by technology

The hydrogeological characteristics of coal seams as the main aquifer are discovered in coal mines for the first time, and there are no clear reports on this kind of mine water disaster prevention and control technology at home and abroad

Method used

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  • Water disaster prevention and treatment design method for mine taking coal bed as main aquifer

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Embodiment 1

[0031] Take the underground excavation and mining of the water-bearing coal seam in a certain mine as an example. The mine mainly mines the 2# coal seam. Among them, the 2# coal seam is also the main aquifer, with a buried depth of 350m. There are many major threats of water hazards in the working face, mainly including local syncline area and Zhiluo Formation scour zone, 2# coal seam water and roof water. When multiple water sources work together, the water inflow at the excavation and mining face will increase to 110-160m 3 / h, if the drainage capacity of the working face is insufficient or malfunctions at this time, local water may accumulate or even submerge the equipment; in addition, the working face of this mine is mainly mined slowly up the mountain, and the adjacent working face on the west side of the goaf cannot be excavated or recovered. There is no threat of stagnant water in the goaf. If the stagnant water in the goaf is not discharged in time or the sealing of t...

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Abstract

The invention discloses a water disaster prevention and treatment design method for a mine taking a coal bed as a main aquifer, and the method is applied to coal mine down-hole use. By judging the water discharge amount of a working face water discharging system, whether working face partial syncline exists or not and whether a working face roof scouring zone and adjacent gobs exist or not, check computation and guarantee of the water discharge capacity of a working face and advancing gob ponding drainage are conducted. According to information collecting results of multiple objects and on the basis of corresponding judgment standards, specific water control measures are presented so that early warning of multiple water-inrush types can be provided, the loss caused by mine water disaster hazardous events can be reduced, and even personal casualties caused by the mine water disaster hazardous events can be reduced.

Description

technical field [0001] The invention relates to a design method for preventing and controlling mine water disasters, in particular to a design method for preventing and controlling mine water disasters in coal seam-based aquifers used for waterproofing underground coal mines. Background technique [0002] The problem of mine water inrush in my country has always been a major technical problem restricting mine safety production. In response to this problem, water inrush prevention and control methods have been formed at home and abroad, such as retaining waterproof coal pillars, dredging and reducing pressure, and rock formation grouting reconstruction. The hydrogeological characteristics of coal seam-based aquifers are discovered in coal mines for the first time, and there are no clear reports on this kind of mine water disaster prevention and control technology at home and abroad. Contents of the invention [0003] Technical problem: The object of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F11/00E21F16/00E21F17/18
CPCE21F11/00E21F16/00E21F17/18G06F30/20
Inventor 巨峰肖猛李百宜郭帅裴玉龙
Owner CHINA UNIV OF MINING & TECH
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