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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

Embodiment 1

[0016] An anti-frost heave pile, which comprises: a prefabricated pile, the upper part of the prefabricated pile has an anti-frost heave annular layer, and the anti-freeze heave annular layer is composed of an anti-frost heave material.

Embodiment 2

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

Embodiment 3

[0020] In the construction method of the above-mentioned anti-frost pile, after the working surface is leveled, a drilling rig is used to drill the anti-freeze hole 1, and then a prefabricated pile 2 is implanted in the anti-freeze hole. 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

Technical field: [0001] The invention relates to a pile foundation construction method used in the construction field in cold regions, in particular to an anti-frost heave pile and a construction method. Background technique: [0002] At present, in order to prevent the piles from being displaced or damaged under the action of tangential frost heave force, the conventional solution is to increase the pile length to increase the pile’s pullout resistance. In this way, the pile’s The length and the length of reinforcement are relatively large, so the project cost is relatively high. Invention content: [0003] In order to overcome the above-mentioned problems existing in the prior art, the object of the present invention is to provide an anti-frost heaving pile and a construction method. [0004] Above-mentioned purpose realizes by following technical scheme: [0005] An anti-frost heave pile, which comprises: a prefabricated pile, the upper part of the prefabricated pile ...

Claims

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Application Information

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IPC IPC(8): E02D31/14
CPCE02D31/14
Inventor 王吉良曹兴明曹宇姜曦李伟春
Owner HEILONGJIANG HUAYAN PILING TECH R & D CO LTD
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