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Frost damage prevention light platform structure

A technology for light platforms and permafrost, applied in infrastructure engineering, protection devices, buildings, etc., can solve problems such as loss of engineering costs, large amount of engineering, etc., and achieve the effect of prolonging service life, saving maintenance and reinforcement or reconstruction funds

Pending Publication Date: 2019-04-12
CHANGCHUN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional treatment method for minor "freezing and pulling" freezing damage is simple reinforcement and maintenance. When severe freezing damage occurs, it will be dismantled and rebuilt, and the project volume will be large, and the project cost will be seriously lost.

Method used

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  • Frost damage prevention light platform structure

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Experimental program
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Effect test

Embodiment Construction

[0009] refer to figure 1 , the specific embodiment of the present invention is to install prefabricated reinforced concrete sleeve 3 around the light platform foundation pile body 1, there is a gap between the sleeve 3 and the light platform foundation pile body 1, and fine pebbles 2 are filled in the gap. The upper end surface of the sleeve is higher than the upper limit of the frozen soil layer, and the lower end surface of the sleeve is lower than the lower limit of the frozen soil layer. If the frozen soil layer L1 is 1700 mm, the sleeve L2 is 2500 mm, and the upper end surface of the sleeve is 400 mm higher than the upper limit L3 of the frozen soil layer, and the lower end surface of the sleeve is also 400 mm lower than the lower limit of the frozen soil layer. The wall thickness L4 of the cylinder is 60 mm.

[0010] Construction process of the present invention:

[0011] 1. After the piling of the light platform foundation pile is completed, excavate the soil around t...

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Abstract

The invention relates to a frost damage prevention light platform structure, which includes a light platform foundation pile body. The frost damage prevention light platform structure is characterizedin that a precast reinforced concrete sleeve is installed around the light platform foundation pile body, a gap is left between the precast reinforced concrete sleeve and the light platform foundation pile body, and the gap is filled with fine pebbles. According to the frost damage prevention light platform structure, the precast reinforced concrete sleeve is installed around the light platform foundation pile body, frost heaving force generated by frozen earth directly acts on the outer surface of the sleeve, free frost heaving of the sleeve is achieved, the direct effect of the frozen earthon a light platform foundation pile is isolated, frostbite damage such as platform face pulling crack and platform foundation dislocation of the light platform structure caused by 'frost heaving' isavoided, the service life of the light platform structure is prolonged, a great deal of money for repairing, reinforcement or reconstruction is saved, and the basic requirements of building a conservation-oriented society are met.

Description

technical field [0001] The invention belongs to the technical field of engineering freezing damage prevention, and in particular relates to a light platform structure for preventing freezing damage. Background technique [0002] At present, the open-air light platform structure in the domestic seasonally frozen area is affected by the freezing and pulling force of the frozen soil on the pile foundation. The service life of the structure is normal use function. This type of frost damage occurs frequently in permafrost regions in China. The conventional treatment method for minor "freezing and pulling" freezing damage is simple reinforcement and maintenance. When severe freezing damage occurs, it will be demolished and rebuilt. Regardless of whether it is a light platform structure that is repaired, strengthened or reconstructed, the "freezing and pulling" frost damage will continue to occur during the service period after the foundation soil is frozen. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/14E02D27/12
CPCE02D27/12E02D31/14
Inventor 孙洪伟曲祖光王德君胡浩
Owner CHANGCHUN INST OF TECH
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