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Pre-stress high-strength concrete pipe pile static-pressure construction method

A construction method and technology for concrete pipe piles, which are applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as affecting construction quality, inclined piles, and cracking at connecting piles.

Inactive Publication Date: 2010-08-25
HUNAN NO 2 ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual construction, there are common problems such as pile top displacement, cracking at the pile connection, and inclined piles, which seriously affect the construction quality.

Method used

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  • Pre-stress high-strength concrete pipe pile static-pressure construction method
  • Pre-stress high-strength concrete pipe pile static-pressure construction method

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Embodiment Construction

[0031] The static pressure construction methods of prestressed high-strength concrete pipe piles may include:

[0032] 1. Protection of finished prestressed high-strength concrete pipe piles

[0033] 1) Prestressed high-strength concrete pipe piles are divided into several specifications according to the outer diameter of 300, 400, 500, 550, 600, 800, 1000mm, etc., and are processed by professional manufacturers;

[0034] 2) Prestressed high-strength concrete pipe piles should be stacked separately according to the specifications, models, and lengths. The number of stacked layers should not exceed the requirements in Table 1. The stacking site should be solid and flat. The supporting points of the skids should be on the same level (if the yard foundation has been specially treated, it can also be laid flat on the ground);

[0035] Table 1 Stacking layers of prestressed high-strength concrete pipe piles

[0036] outer diameter (mm)

300

400

500-600

800-10...

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Abstract

The invention relates to a static pressure construction method for a high and strong pre-stressed concrete tubular pile, which belongs to a building construction method. The static pressure construction method for the high and strong pre-stressed concrete tubular pile comprises the following steps of measurement on a pile position, determination of the pile pressing sequence, lifting and inserting of a pile, centering of a pile body, the measure of preventing displacement of the top of the pile, static pressure pile sinking, pile splicing, the measure of preventing cracking of a pile splicingposition, secondary static pressure pile sinking, pile follower, the measure of preventing pile beveling, termination of pile pressing, pile cutting, repeated pressing, and checking of the quality ofa foundation of the high and strong pre-stressed concrete tubular pile. The invention further designs technical measures of preventing displacement of the top of the pile, preventing cracking of the pile splicing position, preventing pile beveling and so on of the high and strong prestressed concrete tubular pile, and makes the construction method meet the quality requirement of engineering.

Description

technical field [0001] The invention relates to a building construction method, in particular to a static pressure construction method of a prestressed high-strength concrete pipe pile. Background technique [0002] Prestressed high-strength concrete pipes are made by pretensioning prestressing technology and centrifugal forming method. They are composed of hollow cylindrical pile body, end plate and steel hoop. In recent years, they have been widely used in industrial plants, comprehensive office buildings, Among the pile foundations of high-rise buildings, it is a new type of foundation form popularized in buildings. Hydraulic pile machines are used to sink piles under static pressure. The soil uplift and horizontal extrusion caused by construction are smaller than those of driven piles. The impact of the structure is small; the pile sinking speed is uniform, low noise, no vibration, no impact force, the required construction site is small, and the site is clean and the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D7/20
Inventor 李再春周文波肖杰才李波
Owner HUNAN NO 2 ENG
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