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Construction method of underwater tubular pile type foundation and underwater tubular pile type foundation

A construction method and pipe pile technology are applied to the construction of underwater pipe pile foundations and the field of underwater pipe pile foundations, which can solve the problems of weak enhancement of the bearing capacity of pipe pile foundations, and achieve the enhancement of horizontal resistance and vertical The effect of bearing capacity, improving the ability to resist horizontal displacement, and reducing the risk of tilting to one side

Active Publication Date: 2022-04-12
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the underwater pipe pile foundation in the prior art adopts the post-grouting construction method to enhance the bearing capacity of the completed pipe pile foundation, thereby providing an underwater pipe pile foundation. Construction method of pile foundation and underwater pipe pile foundation

Method used

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  • Construction method of underwater tubular pile type foundation and underwater tubular pile type foundation
  • Construction method of underwater tubular pile type foundation and underwater tubular pile type foundation
  • Construction method of underwater tubular pile type foundation and underwater tubular pile type foundation

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Embodiment 1

[0041] Such as Figure 1 to Figure 6 As shown, this embodiment provides a construction method for underwater tubular pile foundations, which is suitable for constructing tubular pile foundations in rivers, rivers, lakes, seas and other water bodies, including the following steps:

[0042] A construction interlayer 20 is arranged axially on the side wall of the pipe pile body 3 , and four construction interlayers 20 are arranged at intervals along the circumference of the pipe pile body 3 . On the side of the construction interlayer 20 away from the inner cavity of the pipe pile body 3, a plurality of construction openings 17 are arranged in the axial direction, and the construction openings 17 are covered by the high-strength plastic plate 2 as a blocking plate. In this embodiment, at first, holes are spaced along the length direction on the web of the channel steel 1 as the construction opening 17, and the high-strength plastic plate 2 is fixed on the inside of the rectangula...

Embodiment 2

[0051] This embodiment provides an underwater pipe pile foundation, which is constructed by applying the construction method of the underwater pipe pile foundation described in Embodiment 1.

[0052] The bottom of the underwater pipe pile foundation extends into the soil body, including: pipe pile body and soil cavity. The soil cavity is formed in the soil around the pipe pile body, the soil cavity is filled with a cement structure, and the cement structure is connected to the pipe pile body. It also includes a plurality of pile-side grout veins extending divergently from the soil cavity toward a direction away from the pipe pile body, and the pile-side grout veins are integrally connected with the cement structure. By extending the side slurry veins from the cement structure, the resistance of the overall movement of the cement structure is increased, the settlement of the cement structure is prevented, the cement structure can be stably connected around the pipe pile body, a...

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Abstract

The invention relates to the technical field of underwater pipe pile foundations, in particular to a construction method of an underwater pipe pile type foundation and the underwater pipe pile type foundation. The construction method of the underwater tubular pile type foundation comprises the following steps that a construction interlayer is arranged on the side wall of a tubular pile body in the axial direction, a plurality of construction openings are formed in the side, away from an inner cavity of the tubular pile body, of the construction interlayer in the axial direction, and the construction openings are covered with plugging plates; the pipe pile body is hoisted and subjected to pile sinking at the pre-construction position, and the pipe pile body is subjected to pile sinking to the preset elevation; respectively arranging blasting devices at the plurality of construction openings along the construction interlayer, and detonating to form a plurality of soil cavities on the outer side of the pile; and cement paste is injected into the soil body cavity through the construction opening along the construction interlayer through high pressure, and construction is completed. The horizontal resistance of the soil body on the side of the pile and the vertical bearing capacity of a pile-soil interface can be effectively enhanced by firstly performing explosion impact on the soil body on the side periphery of the pipe pile body and then performing high-pressure grouting on the formed soil body cavity, and the risk that a pile foundation inclines towards one side is reduced.

Description

technical field [0001] The invention relates to the technical field of underwater pipe pile foundations, in particular to a construction method of an underwater pipe pile foundation and the underwater pipe pile foundation. Background technique [0002] With the development of offshore wind power to the deep sea, in order to make more effective use of offshore wind resources and improve power generation efficiency, large-megawatt wind turbines are gradually being developed and applied, but this will significantly increase the overall load on the upper part of the wind turbine, resulting in the need for The bearing capacity of the fan is increased, otherwise the fan will fall sideways after installation, which will affect the smooth operation of the fan. The demand for bearing capacity can be achieved by increasing the size of the offshore wind power pile foundation, but this will undoubtedly greatly increase the production and transportation costs of the pipe pile foundation....

Claims

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Application Information

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IPC IPC(8): E02D5/38E02D5/62E02D5/66
CPCE02D27/525E02D27/50E02D15/08E02D15/06E02D15/04E02D7/28E02D13/08E02D5/285E02D5/62
Inventor 于光明陈美合王卫张泽超代加林罗仑博祝文龙李洲刘开源
Owner CHINA THREE GORGES CORPORATION
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