Rapid safe construction method and device for bag poured airtight wall and anti-explosion wall

Abstract

The invention discloses a rapid safe construction method for a bag poured type airtight wall and an anti-explosion wall. The rapid safe construction method includes the following steps that a flame-retardant bag is machined, and multiple small holes are formed in the bag in advance; the flame-retardant bag is installed inside a tunnel; the discharging port of a mortar feeding pipe is formed inside the flame-retardant bag, and liquefied mixed mortar is fed into the mortar feeding pipe; sufficient pouring is performed inside the flame-retardant bag, and after the mortar is solidified, the isolation airtight wall is formed. The invention further discloses a construction device for the bag poured airtight wall and the anti-explosion wall. The device comprises the flame-retardant bag, the mortar feeding pipe and a mortar mixing and conveying device, the outlet of the mortar mixing and conveying device is connected with the flame-resistant bag through the mortar feeding pipe in a communicated mode, and the small holes for ventilation and mortar leakage are formed in the two sides and the top wall of the flame-retardant bag respectively. The mode that the flame-retardant bag is filled with the mortar, and the mortar is rapidly solidified and formed is adopted for rapidly, efficiently and safely constructing the isolation airtight wall and the anti-explosion wall, and compared with a traditional construction mode, the rapid safe construction method has the advantages of being obviously safe and efficient.

Description

technical field [0001] The invention relates to a method and device for constructing an airtight wall and an explosion-proof wall, in particular to a method and a device for quickly and safely constructing a capsule-filled airtight wall and an explosion-proof wall for underground mines. Background technique [0002] Accidents such as various fires, gas outbursts, gas coal dust explosions and water inrushes often occur in mines, especially in coal mines. In order to prevent and rescue these disasters, it is necessary to quickly cut off the relevant roadway, so that the fire gas, gas gas, toxic and harmful gas and dust generated by the explosion, and a large amount of incoming water are blocked, so as to prevent the occurrence of disasters or reduce or even eliminate disasters. casualties and losses. [0003] Adopt airtight mode at home and abroad at present and mainly utilize various airtight walls constructed such as masonry, cement, sandbag and plank, comprise general airt...

AI Technical Summary

Problems solved by technology

Although the construction of airbag airtightness is fast, due to the irregular shape of the mine roadway, the surface inside the roadway is rough and uneven, and there are many cables and pipes in the roadway, the airbag airtightness often cannot seal the roadway well, so that the fire gas or Explosive gas can pass through the airtightness and cause injury to people outside the airtightness

In addition, because the volume of the airbag type airbag is often tens of cubic meters to more than one hundred cubic meters, and its surface area is between tens to one or two hundred square meters, its airtightness is difficult to be guaranteed, so this type of airtightness is short-lived. , cannot be permanently airtight, and cannot even meet the needs of long-term rescue and disaster relief; at the same time, because this type of airtight airbag is the main body, it does not have the ability to resist explosion shock waves, water gushing pressure, and high temperature caused by fire, so it has greater application limitations

[0004] It is a new technology developed in recent years to form airtight walls by direct pouring of foaming materials. It is relatively fast, but there are also some shortcomings. The material itself releases the effect of stimulating gas. At the same time, this type of material is a fluid material before foaming and forming a solid. It is not easy to pour into a regular airtight wall. A large amount of material is lost to the bottom of the roadway. A large amount of material is wasted. When pouring, it will crack, which is easy to form air leakage channels. In addition, the material will generate a lot of heat in the process of forming a solid. Due to thermal expansion and contraction, the wall will slowly shrink within dozens of hours after pouring into the wall, making The top of the poured airtight wall cannot fully contact the top of the roadway, and large cracks will be formed between the left and right sides and the channel wall. If a better airtightness is to be achieved, multiple pouring and treatment of the top and cracks are required, so that the To the requirements of fast, efficient and safe

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