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Method for stopping inrushing of goaf water of mine

A technology of old empty water and water blocking, applied in shaft lining, mining equipment, shaft equipment, etc., can solve the problems of frequent occurrence of old empty water in mine water inrush accidents, inability to effectively block old empty water inrush, etc., and achieve cost reduction Low cost, high security and easy implementation

Active Publication Date: 2014-08-13
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a method for blocking the water inrush of the old empty water in the mine, and to solve the problem that the existing method cannot effectively block the water inrush of the old empty water, so that the accident of the old empty water in the mine still remains. frequent technical issues

Method used

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  • Method for stopping inrushing of goaf water of mine
  • Method for stopping inrushing of goaf water of mine
  • Method for stopping inrushing of goaf water of mine

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 , 2 As shown, a method for blocking old empty water inrush in a mine, in a coal mine excavation roadway 2 composed of a main roadway 1, an excavation roadway (a rectangular roadway with a section perimeter of C) 2, and solid coal 3 Inside, a roadway water-blocking section 5 is set 5 meters behind the excavation face 4, and moves forward continuously with the advance of the excavation face. The distance between adjacent water-blocking sections is 5 meters. A flexible water blocking device 6 is arranged in the water blocking section 5 of the roadway.

[0026] The length of the water blocking section 5 of the roadway is three times the perimeter C of the roadway section, and it is arranged along the direction of the roadway. The surrounding water blocking section 5 of the roadway is sprayed with grout 9 so that there are no exposed hard protrusions.

[0027] The flexible water blocking device 6 is composed of a flexible water blocking air bag 61 suspende...

Embodiment 2

[0036] Such as figure 1 , 3 As shown, a method for blocking old empty water inrush in a mine is located in a tunneling work area composed of a main roadway 1, a tunneling roadway (a trapezoidal roadway with a section perimeter of C) 2, and solid coal 3. A roadway water-blocking section 5 is set at a position 5 meters behind the face 4, and it moves forward continuously with the advancement of the excavation face. The distance between adjacent water-blocking sections is 5 meters. A flexible water blocking device 6 is arranged in the section 5 .

[0037] All the other are with embodiment 1.

Embodiment 3

[0039] Such as figure 1 , 4 As shown, a method for blocking old empty water inrush in a mine is located in an excavation work area composed of a main roadway 1, an excavation roadway (a semicircular arch roadway with a section perimeter of C) 2, and solid coal 3. A roadway water blocking section 5 is set at 5 meters behind the excavation working face 4, and it moves forward continuously with the advancement of the excavation working face. The distance between adjacent water blocking sections is 5 meters. A flexible water blocking device 6 is arranged in the water section 5 .

[0040] All the other are with embodiment 1.

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Abstract

The invention provides a method for stopping inrushing of goaf water of a mine, relates to the method of stopping water inrushing of a coal mine, and aims at solving the problem that the inrushing of the goaf water cannot be effectively stopped by the existing method and causes frequent inrushing accidents. The method is characterized in that a laneway water stopping section is arranged at a position about 5m from the back of an excavating working surface, and a flexible water stopping device with flexible water stopping airbags is arranged in the laneway water stopping section; when the goaf water inrushes, the flexible water stopping airbags hung on the top part or two sides of the laneway are quickly inflated and expanded to fill the section of the whole laneway, so as to stop the inrushing water, prevent stream from spreading, and gain time for people escaping and providing disaster relief. The method for stopping inrushing of goaf water of the mine is applicable to stopping of inrushing of the coal mine and has the advantages of being simple, reliable, high in safety, low in cost, and easy to be implemented.

Description

technical field [0001] The invention relates to a water blocking method for water inrush in a coal mine, in particular to a method for blocking water inrush in an old empty area of ​​a mine. Background technique [0002] Mine water inrush is one of the five major disasters in mines. According to the source of water, mine water inrush can be divided into water inrush from confined karst water (also known as Austrian ash water) on the floor, permeable (water inrush) water from the pores of sandstone and its loose layers on the roof, small abandoned coal kilns and goafing in old mines. There are 4 kinds of water damages in district water (also known as Laokong water) collapse (water inrush) and surface water inversion (water inrush). According to statistics, during the Eleventh Five-Year Plan period, there were 129 old air water accidents with more than 3 deaths and 971 deaths, accounting for 92.1% of the total water accidents and 89.6% of the total fatalities. Therefore, pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38
Inventor 冯子军徐素国康志勤刘正和赵阳升
Owner TAIYUAN UNIV OF TECH
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