Rib-line-shaped prestressed concrete pipe pile

A technology of concrete pipe piles and prestressing, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, and can solve problems such as the decline in the bearing capacity of concrete pipe piles, the shortened service life of buildings, and the settlement of buildings. Firmness, enhanced supporting force and long service life

Inactive Publication Date: 2015-10-07
徐俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wall of the traditional concrete pipe pile is smooth, and the friction coefficient with the foundation soil layer is low, which reduces the supporting force of the concrete pipe pile, causes the settlement of the building on it, and shortens the service life of the building

Method used

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  • Rib-line-shaped prestressed concrete pipe pile
  • Rib-line-shaped prestressed concrete pipe pile
  • Rib-line-shaped prestressed concrete pipe pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] specific implementation plan

[0015] Such as Figure 1 to Figure 6 As shown, a ribbed prestressed concrete pipe pile is composed of a pile body 1 . Protruding ribs 2 or protruding movable outer wings are provided on the peripheral wall of the pile body. The protruding ribs and protruding movable outer wings can increase the surface area of ​​the peripheral wall of the pile body, increase the friction force with the soil layer, and greatly improve the friction coefficient between the concrete pipe pile and the foundation soil layer.

[0016] Such as figure 1 As shown, the ribs are rectangular strips distributed helically at intervals. The distance from the spirally distributed rectangular strips protruding from the outer peripheral wall of the pile body is 2 to 15 cm, which can be set according to the texture of the foundation. The softer the texture of the foundation, the higher the rectangular strips protrude from the outer peripheral wall of the pile body. Ensure...

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Abstract

The invention belongs to a rib-line-shaped prestressed concrete pipe pile. The rib-line-shaped prestressed concrete pipe pile is composed of a pile body, wherein protruding rib lines or protruding movable outer expanding wings are arranged on the peripheral wall of the pile body. The rib lines are rectangular strip-shaped bodies which are spirally distributed at intervals. The rib lines are equal-height rib bodies which are arranged at intervals. The rib lines are crescent rib bodies which are arranged at intervals, and the crescent rib bodies are obliquely arranged and are arranged independent of one another. Prestressed reinforcement formworks are arranged in the pile body at intervals, and the pile body is round or square. The friction coefficient of the concrete pipe pile and a foundation soil layer can be substantially increased, and the pipe pile has the advantages that the pipe pile is high in bearing and supporting force and free of sedimentation, labor and effort are saved in the construction process, and the service life of a building is long.

Description

technical field [0001] The invention belongs to a ribbed prestressed concrete pipe pile. Background technique [0002] At present, the foundation of the building is formed by concrete pipe piles arranged at intervals to form a support system. The construction method is to use a threaded cast-in-situ pile machine to make pile foundation holes at the construction site, and then insert concrete pipe piles in the pile foundation holes. However, the pipe wall of the traditional concrete pipe pile is smooth, and the friction coefficient with the foundation soil layer is low, which reduces the supporting force of the concrete pipe pile, causes the settlement of the building on it, and shortens the service life of the building. In construction in sandy soil, the bearing capacity of concrete pipe piles will drop even more. Contents of the invention [0003] The purpose of the present invention is to design a ribbed prestressed concrete pipe pile, which can greatly improve the fric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/58E02D5/56E02D5/48
Inventor 徐俊徐婉容徐芳
Owner 徐俊
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