Prevention and treatment methods of freezing damage in tunnels in cold regions
A technology for tunnels and freezing damage in cold regions, applied in the field of tunnel freezing damage prevention and control in cold regions, can solve problems such as not being able to meet the needs of tunnels operating for a century, achieve the effect of preventing freezing damage and prolonging the service life
Active Publication Date: 2021-02-19
河北交通职业技术学院 +2
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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
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[0044] 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.
[0045] 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.
[0046] Specifically, the operation of injecting the thermal insulation material into the filling 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 filling gaps between ...
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The invention provides a method for preventing and controlling freezing damage of a tunnel in a cold region, which relates to the technical field of tunnels, and comprises applying a freezing damage prevention layer on the lining of a target section in a tunnel in a cold region that needs to be prevented from freezing damage, and the steps include applying a waterproof layer and a thermal insulation layer and the steel plate layer; the method for preventing and controlling freezing damage of tunnels in cold regions provided by the present invention can effectively alleviate the phenomenon of freezing damage in tunnels in cold regions, prolong the service life of the insulation layer, improve the structural integrity of the tunnel during operation, and ensure driving safety.
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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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