Pressure auto-balancing anti-high-pressure water gushing air bag

Abstract

The invention relates to a pressure auto-balancing anti-high-pressure water gushing air bag. The pressure auto-balancing anti-high-pressure water gushing air bag comprises an air bag body, an air compressor pump and an air bag storage room; the air bag body is internally divided into two independent parts of an elastic air bag and a hydraulic balanced bag through a partition plate, the elastic air bag is internally provided with a pressure relief pipeline, one end of the pressure relief pipeline penetrate through the partition plate and communicated with the hydraulic balanced bag, and the other end of the pressure relief pipeline stretches out of the elastic air bag to face the side of high pressure water gushing and sealed with a pressure relief plug; the air compressor pump is connected with the elastic air bag through an air pipe, and the elastic air bag is inflated; the air bag storage room is arranged on a lining and used for installing the air bag body and the air compressor pump. Compared with the prior art, the air bag is simple in structure and low in cost, and the water plugging effect is not affected by the irregular shape of the cross section; in addition, the air bag also has the secondary safety reserve, the function of being capable of automatically balancing ultra-high water pressure and the like.

Description

technical field [0001] The invention relates to the field of underground engineering construction, in particular to a pressure self-balancing anti-high pressure water gushing airbag. Background technique [0002] In recent years, heavy rains have caused frequent waterlogging in cities, flooding many subways, highway tunnels, and shafts, causing equipment damage and causing huge losses to the underground transportation system. In addition, during the construction and operation of high-pressure water-rich tunnels and cross-river and sea-crossing tunnels, due to external environmental influences and the defects of the supporting structures themselves, a large amount of high-pressure water may flow into the tunnels and shafts, causing personnel and equipment damage. And the huge loss of vehicles and immeasurable social impact. [0003] At present, the tunnels and shafts under construction are blocked by pre-grouting, and the tunnels and shafts under construction use water retai...

AI Technical Summary

Problems solved by technology

[0002] In recent years, heavy rains have caused frequent waterlogging in the city, flooding many subways, highway tunnels, and shafts, causing equipment damage and causing huge losses to the underground transportation system

In addition, during the construction and operation of high-pressure water-rich tunnels and cross-river and sea-crossing tunnels, due to external environmental influences and the defects of the supporting structures themselves, a large amount of high-pressure water may flow into the tunnels and shafts, causing personnel and equipment damage. and the huge loss of vehicles and immeasurable social impact

[0003] At present, the tunnels and shafts under construction are blocked by pre-grouting, and the tunnels and shafts under construction use water retaining plates and sealed waterproof doors to prevent the influx of rainstorms. However, it is difficult to guarantee the grouting effect under the action of high-pressure water. Limited, the cost of sealed waterproof doors is high, and it cannot be installed on special-shaped sections, and once the high-pressure water breaks through the waterproof door, there is no remedy

In short, these measures have poor protection against the influx of a large amount of high-pressure water in a very short period of time.

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