A self-locking water-air double-chamber rubber bag device for flood fighting and emergency rescue in tunnels

Abstract

A self-locking water tank and gas tank rubber bag device for tunnel flood-righting and emergency-rescuing comprises a gas bag. One side end of the gas bag is connected with one side end of a water bag through a double-bag connector. The water bag is internally provided with a gas injection tube used for penetrating through the double-bag connector to inject gas into the gas bag. A gas injection port connected with the gas injection tube is formed in the other side end of the water bag. A one-way decompression valve only allowing water entering the inner side of the gas bag is arranged at the other side end of the gas bag. The gas bag is internally provided with an inner side water drain tube with the water inlet end communicating with the one-way decompression valve, and the water outlet of the inner side water drain tube is connected with one end of an outer side water drain tube through a water drain valve arranged at the side end, provided with the double-bag connector, of the gas bag. The other end of the outer side water drain tube is connected to a water inlet valve which is arranged at the side end, close to the gas bag, of the water bag and used for guiding water into the water bag. According to the self-locking water tank and gas tank rubber bag device, the water stopping capability can be automatically adjusted according to the water stopping pressure.

Description

technical field [0001] The invention relates to a water retaining device used in geotechnical engineering and tunnel engineering. In particular, it relates to a self-locking water-air double-chamber rubber bag device used for flood fighting and emergency rescue in tunnels that can quickly deal with the problem of water gushing and mud inrush in tunnels. Background technique [0002] With the development and utilization of underground space, safety issues in the construction and operation of underground railway tunnels and urban pipeline channels have attracted much attention. The areas where these underground pipelines pass inevitably have areas where aquifers or rock formation fissures develop. During construction or operation, problems such as leakage, water gushing and mud outburst are very likely to occur, and flood disasters also occur from time to time during the rainy season. Such accidents are characterized by suddenness and high hazards. Once they occur, they will ...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: (1) The investment is large; (2) The time period is long, and it cannot meet the danger of high water gushing speed, and it cannot be blocked when there is water; (3) It is difficult to remove the water retaining structure, resulting in tunnel damage or Affect the safe use of the tunnel

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