A mine explosion-proof trapezoidal airtight wall and its construction method

Abstract

A mine anti-explosion trapezoidal sealing wall and a construction method therefor, which are suitable for the situation that it's too late to construct a conventional sealing wall when thermodynamic disasters such as an explosion and a fire occur in a tunnel or a mine with a large gas emission quantity. A tunnel roof (1) and a floor (2) are respectively at the top end and the bottom end, and tunnel walls on the two sides; metal anchor nets (5) are arranged on wall rock by means of expansion bolts (17), and the two metal anchor nets (5) are connected to each other by means of iron wires (11); sealing cloths (9) are provided on the inner sides of the metal anchor nets (5), and the metal anchor nets (5) are connected to the sealing cloths (9) by means of iron wires (11); a material of a body to be filled (10) is injected, by means of a grouting hole (4), into a cavity formed of the sealing cloths (9) and the wall rock, and the sealing wall is formed after filling; the grouting hole (4) is connected to a filling device (6) by means of a grouting pipe (8); a pouring pipe (12) made of a fire preventing and extinguishing material and penetrating through the wall is reserved in the middle of the sealing wall, and a water drainage pipe (14) penetrating through the wall is reserved at the bottom of the sealing wall.

Description

technical field [0001] The invention relates to an explosion-proof trapezoidal airtight wall for mines and a construction method thereof, which is suitable for mines where it is too late to construct a traditional airtight wall when thermodynamic disasters such as explosions and fires occur in roadways or mines with a relatively large amount of gas gushing out. Background technique [0002] As one of the main energy sources in the world today, coal has played an extremely important role in human production and life. However, coal is threatened by various natural disasters in the process of mining, storage, transportation and application, which seriously affects the safe production and utilization of coal. Mine fire is one of the main forms of disasters. It will burn a lot of coal resources and equipment, generate a lot of high-temperature smoke and harmful gases, endanger the lives of underground workers, and cause gas and coal dust explosions in severe cases, causing even m...

AI Technical Summary

Problems solved by technology

During the implementation process, since the interior and exterior walls need to use more steel plates, wood boards or bricks, the interior and exterior walls made of wood boards are likely to cause safety hazards due to their flammability, while the use of steel plates or bricks to construct interior and exterior walls costs a lot It is time-consuming and labor-intensive, and the filling body raw materials used in the early stage have a long solidification time, which cannot meet the needs of emergency construction

In summary, the existing airtight walls and their construction methods suffer from complex transportation of raw materials, high cost, time-consuming and laborious, inability to respond to emergencies, or construction quality that cannot meet the needs of long-term airtightness, and cannot meet the needs of efficient emergency rescue during major thermodynamic disasters in mines.

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