Method for enhancing back cover bond stress based on offshore steel inclined pile foundation

A technology of holding force and steel inclined piles, which is applied in the field of enhancing the holding force of the back cover, which can solve the problems affecting the construction progress and quality, water seepage, cracking of joints, etc., and achieve the effect of ensuring bearing capacity, reducing damage and improving bonding force

Inactive Publication Date: 2019-05-21
CCCC SHEC FOURTH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional method, the sealing method of the steel pipe pile and the bottom plate is generally by pouring concrete, but because it is used as a supporting platform, it needs to bear complex stress conditions, and cracking and water seepage often occur at the joint between the two. Seriously affected the construction progress and quality

Method used

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  • Method for enhancing back cover bond stress based on offshore steel inclined pile foundation
  • Method for enhancing back cover bond stress based on offshore steel inclined pile foundation
  • Method for enhancing back cover bond stress based on offshore steel inclined pile foundation

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1 to Figure 3 As shown, a method for enhancing the grip strength of the back cover based on the offshore steel inclined pile foundation includes the following steps:

[0028] (1) Prefabricated shear strength: take a certain length of channel steel and bend it into an annular channel steel 1, weld a connecting plate 3 with a connecting hole 1 2 vertically at both ends of the channel steel, and weld reinforcement between the two Rib 4 is taken as an extension 5 with a length of 20-30cm and welded to the outer side of the annular channel steel 1 along the diameter direction;

[0029] (2) Prefabricated hole sealing assembly: take a strip steel of a certain length and bend it into an annular strip steel 6, and the two ends of the annular strip steel 6 are vertically welded with a connecting plate 2 8 with a connecting hole 2 7, on the annular strip steel 6 And the bottom end of connecting plate 2 8 is vertically welded with ring-shaped bottom cover plate 9; ...

Embodiment 2

[0034] Such as Figure 1 to Figure 3 As shown, a method for enhancing the grip strength of the back cover based on the offshore steel inclined pile foundation includes the following steps:

[0035] (1) Prefabricated shear strength: take a certain length of channel steel and bend it into an annular channel steel 1, weld a connecting plate 3 with a connecting hole 1 2 vertically at both ends of the channel steel, and weld reinforcement between the two Rib 4 is taken as an extension 5 with a length of 20-30cm and welded to the outer side of the annular channel steel 1 along the diameter direction;

[0036] (2) Prefabricated hole sealing assembly: take a strip steel of a certain length and bend it into an annular strip steel 6, and the two ends of the annular strip steel 6 are vertically welded with a connecting plate 2 8 with a connecting hole 2 7, on the annular strip steel 6 And the bottom end of connecting plate 2 8 is vertically welded with ring-shaped bottom cover plate 9; ...

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Abstract

The invention discloses a method for enhancing back cover bond stress based on an offshore steel inclined pile foundation and relates to the technical field of civil engineering. The method comprisesthe steps of prefabricating shear connectors, prefabricating a hole sealing assembly, welding spiral ribs, assembling a prefabricated part, pouring concrete and sealing, and the like. The shear connectors are arranged on the periphery of the steel pipe pile, part of stress transmitted by the reinforced concrete layer can be transmitted in the direction perpendicular to the axis of the steel pipe pile, and therefore the compression resistance of the reinforced concrete layer is improved, and meanwhile the firmness of connection between concrete and the shear connectors can be guaranteed throughthe arranged extending pieces.

Description

technical field [0001] The invention belongs to the field of civil engineering equipment, and in particular relates to a method for enhancing the gripping force of the bottom seal based on the offshore steel inclined pile foundation with simple structure, low construction difficulty and excellent mechanical properties. Background technique [0002] The steel pipe composite pile is mainly composed of a steel casing and a concrete pile inside the steel casing. In recent years, large-diameter steel pipe composite piles have been widely used in deep-water foundation projects of super-large sea-crossing bridges due to their large enough bearing capacity, relatively simple pile sinking process, small soil displacement and good bending resistance. , harbor engineering and bridge engineering in areas with high seismic intensity. Especially with the increase of my country's steel production, the research and development of new anti-corrosion technology and new materials for steel pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D15/00
Inventor 孙士辉万金发谢德宽陈小龙陈跃云陆锦平刘祥
Owner CCCC SHEC FOURTH ENG
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