A tunnel bottom drum prevention and control system

Abstract

The invention discloses a tunnel bottom drum prevention device, prevention system and prevention method. The prevention device includes a casing and a rotating mechanism located outside the casing. The rotation mechanism faces the train track. A round wheel is arranged eccentrically inside the casing. The round wheel and the rotating mechanism Connected by the rotating shaft, the cavity between the casing and the round wheel forms a rotary vane chamber, the round wheel can rotate around the rotating shaft in the rotary vane cavity, and the rotary vane is elastically connected to the round wheel, and the rotary vane chamber is respectively connected to the first The drainage pipe and the second drainage pipe are connected, the water inlet of the first drainage pipe is located in the inverted arch of the tunnel and is lower than the groundwater level, and the water outlet of the second drainage pipe is located in the side ditch of the tunnel. The invention utilizes the piston wind generated by the train running in the tunnel as power to drain water, which not only can discharge the groundwater deep in the inverted arch of the tunnel, but also relieve the water pressure on the inverted arch, and the drainage efficiency is related to the operating frequency of the train, and the drainage process is continuous and stable. More energy saving and environmental protection.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a tunnel floor drum prevention and control system. Background technique [0002] A large number of tunnel bottom diseases often occur in railway tunnels, including mud seeping, tunnel bottom heaving, tunnel bottom frost heaving, etc. The main reason is that in soft rock formations, the inverted arch is subjected to excessive water pressure, and at the same time, too much water cannot be discharged. [0003] Existing inverted arch drainage measures mainly include the following: [0004] (1) Side ditches are set up on both sides of the tunnel. The side ditches receive the seepage water collected from the tunnel ring to the dead-legs and longitudinal blind-legs and discharge it to the outside of the tunnel. However, the water is drained out of the tunnel through the side ditches. The precipitation water level can only reach the water level of the side ditch and cannot Dr...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a prevention and control system for the tunnel bottom drum in view of the problems in the prior art that the groundwater in the deep part of the inverted arch cannot be discharged and the bottom drum of the tunnel cannot be solved. Tunnel drum problem

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