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Pile foundation protection structure and protection method

A protective structure and pile foundation technology, which is applied in the field of pile foundations, can solve problems such as riprap accumulation, and achieve the effects of convenient maintenance, stability assurance, and simple implementation process

Pending Publication Date: 2020-11-13
HUADIAN HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the protection of offshore wind power pile foundations is prone to riprap accumulation during construction, thereby providing a pile foundation protection structure and protection method

Method used

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  • Pile foundation protection structure and protection method

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Experimental program
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Effect test

Embodiment 1

[0037] This embodiment provides a specific implementation of the pile foundation protection structure, such as figure 1 and figure 2 As shown, by laying a solidified soil layer 2 around the pile foundation 1, the solidified soil layer 2 is in contact with the seabed 3 and laid above the seabed 3, the solidified soil layer 2 can be closely attached to the mud surface of the seabed 3, wherein, The solidified soil layer 2 comprises mud and curing agent, and the mud makes the solidified soil layer 2 have a certain fluidity, and the solidified soil layer 2 and the materials such as secondary minerals in the mud surface of the seabed 3 can undergo a series of hydration, The hydrolysis reaction produces a large number of various hydration gel products, which will cement and wrap the fine particles in the mud surface, making them aggregate, and cement the loose soil into a whole with a certain strength, and then in the A solidified soil layer 2 with a certain strength is formed arou...

Embodiment 2

[0046] The present embodiment provides a specific implementation of the protection method. In the present application, the diameter of the pile foundation 1 is 6.9m. After the pile foundation 1 is inserted on the seabed 3, use mud and curing agent to make solidified soil, mud and The mass ratio of the curing agent ranges from 11.4% to 13.9%. Among them, in this embodiment, 12.5% ​​of the solidified soil is used for mixing to obtain a solidified soil whose slump meets the requirements, and then the blow-fill pipe 4 The outlet end extends to the pile foundation 1 and is inserted above the root of the seabed 3 to fill with solidified soil. After the solidified soil is filled around the pile foundation 1, it flows under the influence of its own gravity. With the continuous filling of the solidified soil, the solidified soil The area of ​​the soil around the pile foundation 1 becomes larger and larger until the distance between the edge of the solidified soil and the outer periphera...

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Abstract

The invention provides a pile foundation protection structure and a protection method, and belongs to the technical field of pile foundations. The pile foundation protection structure comprises a pilefoundation and a solidified soil layer. The pile foundation is suitable for being inserted in a seabed. The solidified soil layer is laid around the pile foundation and makes contact with the pile foundation, and furthermore, the solidified soil layer is suitable for being arranged on the upper portion of the seabed while making contact with the seabed. According to the pile foundation protectionstructure, the solidified soil layer is laid around the pile foundation, the solidified soil layer makes contact with the seabed and is laid on the upper portion of the seabed, the solidified soil layer can be tightly attached to the mud surface of the seabed, scouring pits are prevented from being formed around the pile foundation by water scouring, the stability of the pile foundation is guaranteed, the scheme is easy and convenient to implement, and maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of pile foundations, in particular to a pile foundation protection structure and protection method. Background technique [0002] Offshore wind power generation is a clean and environmentally friendly power generation method. The offshore wind power pile foundation is the key to supporting the entire offshore wind turbine. Under the action of waves and currents, the sand around the offshore wind power pile foundation will be washed away And form scour pits, scour pits will have an impact on the stability of the pile foundation. Usually, riprap and other schemes are used to prevent tidal erosion around the pile foundation. When adopting the riprap scheme, it is necessary to keep moving around the pile foundation , in order to spread stones around the pile foundation to prevent water erosion from affecting the stability of the pile foundation. In this scheme, the stones have no fluidity. The effect of being c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/60E02D27/52E02D27/42E02D27/12E02D31/06F03D13/25
CPCE02D5/60E02D27/12E02D27/425E02D27/525E02D31/06E02D2300/0039F03D13/22F03D13/25Y02E10/72Y02E10/727Y02E10/728
Inventor 张启光陈松杨砚成于盛军张野田利勇刘涛
Owner HUADIAN HEAVY IND CO LTD
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