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High-performance combined friction pile structure and construction method

A construction method and technology of friction piles, which are applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problem of low positioning accuracy of the reinforcement cage of the pile body, difficulty in improving the bearing performance of the soil body at the top of the pile, and post-grouting body on the side of the pile. It is difficult to guarantee the integrity of the material of the pile body, etc., to achieve the effect of improving the accuracy and improving the resistance of the pile side.

Active Publication Date: 2021-05-07
中咨海外咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology helps to improve the friction between the friction pile and the pile hole, the positioning accuracy of the pile reinforcement cage is low, and it is difficult to ensure the integrity of the post-grouting body on the pile side and the pile body material, and it is difficult to improve the soil on the top of the pile. body load-carrying performance

Method used

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  • High-performance combined friction pile structure and construction method
  • High-performance combined friction pile structure and construction method
  • High-performance combined friction pile structure and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1: A segmental reinforcement tube 2 is preset in the pile body reinforcement cage 1, and grout seepage slots 48 and rigid elastic pieces 11 are set on the side walls of the segmental reinforcement tube 2; 1 is provided with guide hole guide pipe 7, and the lateral support body 34 can be formed around the pile by means of the rear grouting pipe 31; the steel casing 15 and the circumferential reinforcement are placed in the static pressure mode, and the guide chute 26, Orientation slider 25 and alignment screw 53 control the direction of steel casing 15 and hoop reinforcement; hoop pad 29 is set between pile body reinforcement cage 1 and steel casing 15; ring is set at the top of friction pile 16 To the reinforcing body, by grouting to the reinforcing grouting pipe 38, an annular reinforcing body 39 is formed on the outside of the friction pile 16; Integrity of friction pile 16 and cap concrete 45 .

[0061] Pile body reinforcement cage 1 includes segmental re...

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Abstract

The invention relates to a high-performance combined friction pile structure and a construction method, which is characterized in that: a segmental reinforcing pipe is preset in a reinforcing bar cage of the pile body, and a grout seepage slot and a grooved hole for slurry seepage are arranged on the side wall of the segmental reinforcing pipe. Rigid shrapnel; a guide tube for guide holes is set on the steel cage, and a lateral support body can be formed around the pile with the help of the rear grouting tube; The orientation slider and the alignment screw control the direction of the steel casing and the hoop reinforcement; the hoop block is set between the reinforcement cage of the pile body and the steel shell; the hoop reinforcement is set at the top of the friction pile, and the hoop The reinforcing grouting pipe of the reinforcing body is grouted to form a ring-shaped reinforcing body on the outside of the friction pile; the formwork of the cap is made of prefabricated concrete, and the whole of the friction pile and the concrete of the cap can be improved through the anchor plate and the reinforcing tie. sex. The invention can effectively improve the bearing performance of the pile top and the soil around the pile, improve the integrity of the foundation pile, and reduce the difficulty of construction.

Description

technical field [0001] The invention relates to a high-performance combined friction pile structure and construction method that can effectively improve the load-bearing performance of the pile top and the soil around the pile, improve the integrity of the foundation pile, and reduce the difficulty of construction. It belongs to the field of geotechnical engineering and is suitable for the construction of friction piles. project. Background technique [0002] As an important form of foundation pile, friction pile has been widely used in various foundation projects. Judging from the load-bearing performance and failure form of foundation piles, the load-bearing capacity of friction piles is significantly affected by the frictional resistance around the pile and the integrity of the pile body. Therefore, in engineering design and construction, improving the performance of the soil around the pile and improving the bearing capacity of the foundation pile have always been the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38E02D27/14
CPCE02D5/385E02D27/14E02D2250/0023
Inventor 韩尚宇李连国单凌志裘德利李月明陈慧
Owner 中咨海外咨询有限公司
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