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A design method for water disaster prevention and control of mines with coal seam as the main aquifer

A water layer and coal seam technology, applied in the field of mine water disaster prevention and control design, can solve problems such as no clear reports, achieve low implementation cost, reasonable scheme design, and reduce losses

Active Publication Date: 2020-01-21
CHINA UNIV OF MINING & TECH
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  • Claims
  • Application Information

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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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  • A design method for water disaster prevention and control of mines with coal seam as the main aquifer

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Embodiment 1

[0031] Taking the underground excavation and mining of a water-bearing coal seam in a mine as an example, the mine mainly mines 2# coal seam. Among them, the 2# coal seam is also the main aquifer, with a buried depth of 350m. There are many threats of water hazards in the working face, mainly in the local syncline area and the erosion zone of Zhiluo Formation, 2# coal seam water and roof water. When various water sources are combined, the water inflow in the excavation and mining face will increase to 110-160m 3 / h, if the drainage capacity of the working face is insufficient or fails at this time, local water may accumulate or even submerge the equipment; in addition, the working face of this mine is mainly mined slowly uphill, and the excavation and mining of the adjacent working face on the west side of the goaf cannot be carried out. There is no threat of water accumulation in the goaf. If the water in the goaf is not discharged in time or the sealing of the connecting roa...

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Abstract

A water disaster prevention and treatment design method for a mine taking a coal bed as a main aquifer. By determining the water discharge amount of a working face water discharging system, whether working face partial syncline exists, and whether a working face roof scouring zone and adjacent gobs exist, check computation and guarantee of the water discharge capacity of the working face are conducted and gob hydrops are discharged in advance. The method is applicable to underground coal mines, and is able to propose a specific water prevention and treatment measure according to information acquisition results of multiple objects and on the basis of a corresponding determination standard, provide early warning for multiple water-inrush types, reduce the loss caused by mine water disaster hazardous events, and even reduce casualties caused by the mine water disaster hazardous events.

Description

technical field [0001] The invention is a design method for mine water hazard prevention and control, in particular, a design method for mine water hazard prevention and control in a coal seam-based aquifer which is used for underground water hazard prevention in 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 methods have been formed at home and abroad, such as retaining waterproof coal and rock pillars, dredging and reducing pressure, and grouting in rock formations. It is the first time that the hydrogeological features of coal seam-based aquifers have been discovered in coal mines, and there is no clear report on such mine water hazard prevention and control technologies at home and abroad. SUMMARY OF THE INVENTION [0003] Technical problem: The purpose of the present invention is to provide a desi...

Claims

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Application Information

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Patent Type & Authority Patents(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