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Anti-seepage method for mine underground reservoirs

A technology for underground reservoirs and mines, applied in mining equipment, earthwork drilling, water conservancy projects, etc., can solve problems affecting underground production safety, achieve the effects of enhancing safety and stability, improving project progress, and avoiding impact

Active Publication Date: 2012-11-07
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for underground reservoirs, once a large amount of seepage occurs, it will seriously affect the safety of downhole production.

Method used

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  • Anti-seepage method for mine underground reservoirs

Examples

Experimental program
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Embodiment

[0044] An underground reservoir in a mining area, such as figure 2 As shown in the shaded part 2, it includes two adjacent working surfaces 21, 22, and a coal pillar 23 is arranged between the working surfaces 21, 22. Since the working face 21 is mined earlier than the working face 22, in order to ensure the safety of the mine and protect groundwater resources, anti-seepage construction is carried out on the side of the left roadway 211 of the working face 21 at the same time as the roadway support. While the retraction channel 213 of the working face 21 is being excavated, anti-seepage construction is carried out on the side walls near the main road 24, and the roadways 211 and 212 are blocked after the mining of the working face 21 is completed (that is, in the figure 2 In the blank area 214,215 places to block the roadway).

[0045] When the roadway 222 on the right side of the working face 22 is excavated, anti-seepage construction is carried out on its side walls, which ...

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Abstract

The invention relates to an anti-seepage method for mine underground reservoirs. The anti-seepage method is used for solving the problem of seepage of underground reservoirs and includes performing anti-seepage treatment for roadway lateral walls and retracement passages of an underground reservoir composed of working surfaces, so that anti-seepage effect is achieved, and groundwater resources in mining areas are effectively protected. Anti-seepage engineering and coal mining are carried out synchronously, so that safety and stability of the underground reservoirs are enhanced while engineering progress is accelerated, influences on mine production are avoided, and optimized development of water protection and resource exploitation is achieved.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to a mine underground reservoir in coal mining and an anti-seepage method thereof. Background technique [0002] my country is a water-short country, and the shortage of water resources poses a serious threat to the development of the national economy and the improvement of people's lives. Mine water is unavoidable in the process of coal mining. As a precious water resource, the mine water discharged by key state-owned coal mines alone is as high as 2.2 billion tons every year. On average, every ton of coal mined requires the discharge of 2 tons of wastewater. On the one hand, the discharge of mine water not only wastes a lot of precious water resources, but also easily constitutes serious environmental pollution to the surrounding environment. On the other hand, the western region of my country is rich in coal resources, but water resources are scarce, which further worsens the water sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/16E02B3/16
Inventor 张建民张凯陈书社孟召平李鹏
Owner CHINA SHENHUA ENERGY CO LTD
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