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Tunnel drainage pipe crystallization prevention and control system and method

A tunnel drainage and tunnel technology, applied in drainage, mine/tunnel ventilation, earthwork drilling and mining, etc., can solve the problems of slowing down of water flow and clogging of crystals, and achieve the effects of increasing drainage speed, delaying clogging and avoiding clogging

Pending Publication Date: 2020-07-03
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the above reasons, the slowing down of the water flow in the horizontal dead-leg and vertical dead-leg is likely to cause the above problems, and the blockage of crystals is the most serious hazard

Method used

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  • Tunnel drainage pipe crystallization prevention and control system and method
  • Tunnel drainage pipe crystallization prevention and control system and method
  • Tunnel drainage pipe crystallization prevention and control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] see Figure 1-Figure 3 , The embodiment of the present invention provides a tunnel 1 drainage pipe crystallization prevention system, which includes a water tank 7 , an outlet pipe 9 and a water suction pipe 8 . .

[0081] The water tank 7 is used to be arranged below the track surface of the tunnel 1 , and the top of the water tank 7 is provided with an elastic diaphragm 71 . Along the length direction of the tunnel 1, at least two water tanks 7 are arranged.

[0082] The water tank 7 is also provided with an adding port 75 which is detachably sealed by a sealing end cover 751 . The opening height of the adding port 75 is higher than the top surface of the water tank 7 .

[0083] A one-way valve 74a is provided in the water outlet pipe 9 , one end of the water outlet pipe 9 is connected to the water tank 7 , and the other end is used to connect the horizontal blind pipe 2 and / or the vertical dead pipe 3 in the tunnel 1 .

[0084] Further, a plurality of water outle...

Embodiment 2

[0096] see Figure 4 , the embodiment of the present invention provides a tunnel 1 drainage pipe crystallization prevention system, which differs from the tunnel 1 drainage pipe crystallization prevention system in Embodiment 1 in that: in this embodiment, the water tank 7 is also provided with a first grid Grid 72a and second grid 72b.

[0097] Specifically, the first grid 72a is arranged on the top of the water tank 7 and is fixedly connected with the water tank 7, the second grid 72b is arranged under the first grid 72a and is fixedly connected with the water tank 7, the first grid 72a and the second An elastic diaphragm cavity 73 for accommodating the elastic diaphragm 71 is formed between the grids 72b. The elastic diaphragm 71 is installed in the elastic diaphragm cavity 73 .

[0098] Further, the second grid 72b is a concave spherical structure, which is used to better match the shape of the deformed elastic diaphragm 71 .

[0099] On the basis of the tunnel 1 draina...

Embodiment 3

[0103] see Figure 5 , the embodiment of the present invention provides a tunnel 1 drainage pipe crystallization prevention method, which is based on the tunnel 1 drainage pipe crystallization prevention system provided in embodiment 1 or embodiment 2, comprising the following steps:

[0104] Install the above-mentioned tunnel 1 drainage pipe crystallization prevention system in tunnel 1;

[0105] Add acidic solute and / or solution in water tank 7;

[0106] After the operation of the tunnel 1, the piston wind generated by the train passing through the tunnel 1 and / or the natural wind in the tunnel 1 drives the elastic diaphragm 71 in the drainage pipe crystallization prevention and control system of the tunnel 1 to move downward, so that the water in the water tank 7 The acidic solution is discharged to the horizontal blind pipe 2 and / or the vertical blind pipe 3 through the outlet pipe 9;

[0107] Detect the liquid flowing into the side ditch 5 from the vertical dead leg 3 ,...

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Abstract

The invention relates to the field of tunnel engineering, in particular to a tunnel drainage pipe crystallization prevention and control system and method. The prevention and control system includes awater tank and a water outlet pipe, wherein the water tank is arranged below the tunnel track surface, and an elastic partition film is arranged at the top of the water tank; one end of the water outlet pipe is connected with the water tank, and the other end of the water outlet pipe is used for connecting a transverse blind pipe and / or a longitudinal blind pipe in a tunnel; and the water outletpipe is internally provided with a first one-way valve for limiting the flow of liquid along the direction from the water tank to the water outlet pipe. The prevention and control method is based on the prevention and control system. The tunnel drainage pipe crystallization prevention and control system and method can use piston wind energy and / or natural wind energy in the tunnel to speed up theliquid flow rate in a drainage pipe, so that the problem of drainage pipe blockage is improved, and the tunnel drainage pipe crystallization prevention and control system and method have the advantages of energy saving and low operating cost.

Description

technical field [0001] The invention relates to tunnel engineering, in particular to a tunnel drainage pipe crystallization prevention system and prevention method. Background technique [0002] The tunnel drainage system is an important part of the safe operation of the tunnel. Usually, in the tunnel drainage system, the water in the surrounding rock is discharged into the central ditch through the circumferential dead-leg, longitudinal dead-leg, and transverse dead-leg. However, crystallization and clogging of the drainage system commonly occur in railway tunnels in Northeast, Northwest, Southwest, and South China, and also in highway tunnels, resulting in the failure of the tunnel drainage system as a whole, deteriorating the stress and service state of the tunnel structure, and causing lining Secondary diseases such as cracking, water leakage, and ice hanging seriously affect the service and operation safety of the tunnel structure. Tunnel drainage pipes include horizo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/02E21F17/00E21F1/00
CPCE21F16/02E21F17/00E21F1/003
Inventor 范雲鹤赵万强喻渝罗禄森郑长青孙红月尚岳全翁杨周路军周羽哲辜英晗何思江徐郅崴郑凯
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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