Frost heave prevention pile and construction method

A construction method and anti-frost heave technology, which can be used in infrastructure engineering, protection devices, buildings, etc., can solve the problems of high engineering cost, large length and length of reinforcement, and achieve the effects of low cost, reduced labor cost, and high speed.

Inactive Publication Date: 2018-09-04
HEILONGJIANG HUAYAN PILING TECH R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to prevent the piles from being displaced or damaged under the action of tangential frost heaving force, the conventional solution is to increase the pile length to increase the pullout resistance of the pile foundations used in buildings in the cold northern regions. In this way, the pile The length and reinforcement length are relatively large, so the project cost is relatively high

Method used

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  • Frost heave prevention pile and construction method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1:

[0016] An anti-frost heave pile, which is composed of a prefabricated pile. The upper pile circumference of the prefabricated pile is provided with an anti-frost heave ring-shaped layer, and the anti-frost heave ring layer is composed of an anti-frost heave material.

Example Embodiment

[0017] Example 2:

[0018] According to the anti-frost heave pile described in embodiment 1, the pile body of the prefabricated pile is coated with asphalt or covered with linoleum, the anti-frost heave layer is backfilled sand, and the top of the anti-frost heave layer has a layer of waterproof cohesive soil. The precast piles mentioned are concrete precast piles or steel piles.

Example Embodiment

[0019] Example 3:

[0020] The above-mentioned construction method of anti-freeze heave piles, after leveling the working surface, use a drill to drill the anti-freeze hole 1, and then implant the precast pile 2 in the anti-freeze hole. The depth of the anti-freeze hole is greater than the depth of the frozen soil layer. The remaining space is filled.

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Abstract

The invention discloses a frost heave prevention pile and a construction method. At present, according to pile foundations used in buildings in north cold regions, in order to prevent the pile from moving upward or destroying under the action of tangential frost heave force, the conventional solution is to increase the length of the pile to increase the pulling-out resistance of the pile, so thatthe length of the pile and the length of reinforcement are relatively large, and the project cost is relatively high. The frost heave prevention pile comprises a prefabricated pile (2), the upper portion of the prefabricated pile is surrounded by a frost heave prevention circular layer, and the frost heave prevention circular layer is composed o frost heave prevention materials (3). The frost heave prevention pile and the construction method are applied to pile foundation construction in the cold field construction field.

Description

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Claims

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Application Information

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Owner HEILONGJIANG HUAYAN PILING TECH R & D CO LTD
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