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Cold region tunnel freeze injury prevention and control method

A technology for tunnels in cold areas and freezing damage, which is applied in the field of freezing damage prevention and control of tunnels in cold areas, can solve problems such as the inability to meet the needs of tunnel operation for a hundred years, and achieve the effect of preventing freezing damage and prolonging service life.

Active Publication Date: 2019-04-05
河北交通职业技术学院 +2
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AI Technical Summary

Problems solved by technology

[0003] At present, tunnels in cold regions in China mainly alleviate frost damage by laying insulation layers, but the insulation layers are easily affected by the tunnel environment and lining water seepage, resulting in a service life of only 5-6 years for the insulation layer, which is far from meeting the needs of tunnel operations. Centennial needs

Method used

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  • Cold region tunnel freeze injury prevention and control method
  • Cold region tunnel freeze injury prevention and control method
  • Cold region tunnel freeze injury prevention and control method

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Embodiment approach

[0045] Further, as a specific implementation of the method for preventing and controlling frost damage in tunnels in cold regions provided by the present invention, when installing steel plates 5, first, a plurality of steel plates 5 are spliced ​​into rings in the circumferential direction of the section of the tunnel in cold regions, and the multi-ring steel plates 5 are The lengthwise splicing and installation of the tunnel in the cold region forms the steel plate layer 2c.

[0046] Under this construction method, the steel plates enter and stack according to the ring, which facilitates the organization of the construction and ensures that the construction site is orderly.

[0047] Specifically, the operation of injecting the thermal insulation material into the gap occurs after the splicing of each ring of steel plates 5 is completed. That is, after each ring of steel plates 5 is spliced ​​and closed, the insulation material is filled, and the gaps between each steel plate...

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Abstract

The invention provides a cold region tunnel freeze injury prevention and control method, and relates to the technical field of tunnels. The method comprises the step that a freeze injury control lateris applied to a lining of a target section where freeze injury control needs to be performed inside a cold region tunnel, wherein a waterproof layer, a heat preservation layer and a steel plate layerare included. According to the cold region tunnel freeze injury prevention and control method, the phenomenon of freeze injuries inside the cold region tunnel can be effectively relieved, the servicelife of the heat preservation layer is prolonged, the structure integrity during tunnel operation is improved, and therefore traffic safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of tunnels, and more specifically relates to a method for preventing freezing damage of tunnels in cold regions. Background technique [0002] With the continuous development of my country's transportation construction, there are more and more engineering cases of tunnel construction in severe cold areas. Affected by the cold climate, tunnels in cold regions are prone to frost damage, such as frost heave cracking and peeling of tunnel lining. Once frost damage occurs, it will not only cause structural damage to the tunnel, but also cause ice to hang on the lining and invade the building boundary, seriously endangering driving safety. [0003] At present, tunnels in cold regions in China mainly alleviate frost damage by laying insulation layers, but the insulation layers are easily affected by the tunnel environment and lining water seepage, resulting in a service life of only 5-6 years for the insulation la...

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Application Information

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IPC IPC(8): E21D11/38E21D11/18
CPCE21D11/18E21D11/38
Inventor 王道远崔光耀崔海龙孙永杰袁金秀王悦杨杰李晓华吴昊刘剑南徐丽英扈光明杨君华李广盼
Owner 河北交通职业技术学院
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