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Technology for blocking mine water bursting through backflow grouting

A technology of mine water inrush and grouting, which is used in sealing/isolation, wellbore/well components, earth-moving drilling, etc., and can solve problems such as incomplete water inrush in sealing

Inactive Publication Date: 2012-07-18
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the main function of conventional grouting is to block and cut off the supply water source and strengthen the aquifer, and the plugging of water inrush is not complete

Method used

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  • Technology for blocking mine water bursting through backflow grouting
  • Technology for blocking mine water bursting through backflow grouting
  • Technology for blocking mine water bursting through backflow grouting

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Experimental program
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Embodiment Construction

[0032] Refer to attached figure 1 , backflow grouting plugging mine water inrush technology, specifically includes the following steps:

[0033] 1. Analysis of mine hydrogeological conditions

[0034]Because the backflow grouting water plugging technology has its specific application conditions, it is necessary to analyze the hydrogeological conditions of the mine before deciding to use the grouting technology. It mainly includes the causes of water damage, the amount of water inrush, the source of water inrush, the nature and distribution range of mine water filling and replenishment channels, and hydrostatic pressure. Only by clarifying these problems can we formulate a feasible grouting water blocking technology and engineering plan.

[0035] mainly includes:

[0036] (1) Analysis of water inrush source;

[0037] (2) Analysis of water guide channels;

[0038] (3) Analysis of water inrush types.

[0039] The types of water inrush include water inrush in excavation road...

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Abstract

The invention discloses a technology for blocking mine water bursting through backflow grouting, and provides a technology for blocking mine water bursting through backflow grouting, which blocks a water channel, transforms an aquifer into a waterproof layer and thoroughly blocks the water bursting source. Based on conventional grouting, drilling pressurization and grouting are performed near a water bursting point, and the grout is forced to flow to the aquifer along the water channel and occupy the rich-water space between the water channel and the aquifer so as to block the water channel, transform the aquifer into a waterproof layer and thoroughly block the water bursting source.

Description

technical field [0001] The present invention relates to a mine water disaster prevention and control technology, in particular to a method of plugging individual large cracks and quite a few small cracks or weak zones that still exist on the basis of conventional grouting, and improving the backflow of grouting plugging effect. Grouting plugging mine water inrush technology. Background technique [0002] my country is one of the countries with the largest coal resources in the world, ranking third in the world. Annual coal production has been at 10×10 since the late 1980s 8 t above, ranking first in the world. In China's primary energy production and consumption, coal accounts for more than 70%, which determines the main position of coal production in China's energy industry, and the pattern of coal as the main energy will exist in China for a long time. In the process of large-scale development of coal resources, the problem of water damage related to the mining of coal...

Claims

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Application Information

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IPC IPC(8): E21B33/13
Inventor 武强赵苏启张秋成
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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