Protection method for corrosion prevention of precast pile joint

A technology of prefabricated piles and joints, used in protection devices, sheet pile walls, buildings, etc., can solve the problems of loss of anti-corrosion function, friction damage of surrounding soil, loss of durability, etc., to achieve clear principles, prevent post-construction risks, The effect of convenient construction

Pending Publication Date: 2022-07-22
SHENYANG ZHONGJIAN DONGSHE GEOTECHN ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a risk in this process, that is, the anti-corrosion layer at the pile connection position will be damaged by the friction of the surrounding soil when the pile is sinking, and the anti-corrosion function will be lost, thereby losing durability

Method used

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  • Protection method for corrosion prevention of precast pile joint
  • Protection method for corrosion prevention of precast pile joint
  • Protection method for corrosion prevention of precast pile joint

Examples

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Embodiment Construction

[0023] A method for protecting the joints of prefabricated piles from corrosion, comprising the following steps:

[0024] 1. According to the size of the prefabricated pile 1 in the actual project (it can be a round pipe pile or a square pile, or both can be hollow), prefabricated a sheet-shaped protective sleeve 6 of the corresponding size, of which the main size is at least one prefabricated pile hoop 2. Outer perimeter, location and size of prefabricated pile collar dents 3. In this embodiment, there are two circles of prefabricated pile hoop dents 3 at the joint of the prefabricated pile 1 .

[0025] 2. The protective cover 6 can be made of steel, with a thickness of 1mm and a generally rectangular shape, such as image 3 The shown left and right length ab is the outer circumference of the prefabricated pile hoop 2, the width is generally 170mm (can be adjusted according to the actual situation), and at least two protective sleeve dents 8 are provided (the size is consist...

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Abstract

The invention discloses a protection method for corrosion prevention of a precast pile joint, and belongs to the technical field of pile foundation engineering. The protective sleeve is provided with at least two protective sleeve dents, and the protective sleeve dents are correspondingly consistent with the preformed pile hoop dents. After the precast piles are spliced to form the anti-corrosion layer, the sheet-shaped protective sleeve hoops the splicing positions of the upper and lower section piles in the circumferential direction to form the sleeve-shaped protective sleeve, the protective sleeve dent and the precast pile hoop dent are correspondingly clamped, and the protective sleeve is fixed relative to the edge. The anti-corrosion layer at the joint is not in direct contact with water and soil any more, and particularly friction damage of the soil layer to the anti-corrosion layer in the pile sinking process is prevented. According to the scheme, finished prefabricated parts are directly wrapped and protected on site, the construction speed is high, the construction precision is high, the quality is easy to control, and post-construction risks are effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of pile foundation engineering, and particularly relates to a method for protecting the joints of prefabricated piles from corrosion. Background technique [0002] With the development of foundation engineering in the direction of fast construction and cost economy, prefabricated piles, as an efficient and economical pile type, are used more frequently in the field of foundation engineering. Conventional prefabricated piles are limited by transportation, and their length is generally up to 15 meters. When longer prefabricated piles need to be used in foundation engineering, it is necessary to connect the prefabricated piles (conventional pile connection methods include welding method, mechanical connection method, mechanical connection method, etc.). Pile method, flange bolt connection method and sulfur cement anchoring method), after the pile is connected, the position of the butt joint is subjected to anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/60E02D5/24E02D5/52E02D31/00
CPCE02D5/60E02D5/24E02D5/52E02D31/00
Inventor 黄剑兵孙明涛刘铁鑫辛全明程琴辉许毓芳李俊杰佘小康曹洋
Owner SHENYANG ZHONGJIAN DONGSHE GEOTECHN ENG
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