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Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof

An ultra-large-diameter, offshore wind power technology, applied in wind power generation, wind engine assembly, installation/supporting wind engine configuration, etc., can solve problems such as high cost, steel pipe piles are susceptible to erosion, corrosion weight, etc., to reduce settlement , Improve the stability and bending resistance of the pile body, and improve the bearing capacity of the pile foundation

Active Publication Date: 2022-04-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The new solution proposed by the present invention is to use super-large-diameter prestressed concrete tubular piles as a new type of offshore wind power pile foundation to replace the current large-scale use of pure steel pipe pile foundations to solve the problem that steel pipe piles are vulnerable to erosion, corrosion and weight. Large and costly issues

Method used

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  • Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof
  • Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof
  • Super-large-diameter prestressed concrete tubular pile for offshore wind power and construction method thereof

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Embodiment Construction

[0056] The present invention will be described in detail below in conjunction with embodiments and accompanying drawings.

[0057] like Figure 1-3 As shown, the ultra-large diameter prestressed concrete tubular pile of the present invention includes the tubular pile body. During construction, it mainly includes the following steps: A, binding the steel cage skeleton 1; B, on the steel cage skeleton 1, The main components of the post-fixing grouting device-outer ring laminated grout pipe 4, inner ring laminated grout pipe 5; C, using post-tensioning construction technology to promote the formed concrete barrel pile to meet the preset prestress; D, with steps B. Based on the pre-embedded outer ring lamination grout pipe 4 and inner ring lamination grout pipe 5, other auxiliary components of the post grouting device are assembled on site, and the on-site construction of the concrete barrel pile is completed through the post grouting construction process.

[0058] The specific s...

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Abstract

The invention discloses a super-large-diameter prestressed concrete tubular pile for offshore wind power and a construction method thereof.The concrete tubular pile comprises a reinforcement cage framework, and the reinforcement cage framework adopts a double-layer bidirectional mixed reinforcement mode and comprises an outer ring layer, an inner ring layer and a connecting layer connecting the outer ring layer and the inner ring layer into a whole; the outer ring layer comprises outer ring layer longitudinal bars and outer ring layer stirrups, and the inner ring layer comprises inner ring layer longitudinal bars and inner ring layer stirrups; the outer ring layer longitudinal bars and the inner ring layer longitudinal bars are tied through tie bars, and the tie bars form the connecting layer. Therefore, the corrosion of seawater and salt mist to the fan foundation and the damage of marine organisms to the structural foundation can be effectively reduced, the problem of corrosion resistance of the fan foundation is well solved, and the concrete base material is adopted, so that the engineering cost can be reduced, the construction is convenient, and the operation and maintenance cost is reduced and the operation and maintenance efficiency is improved under the pressure of reducing the cost on average price.

Description

technical field [0001] The field of the invention is the technical field of offshore wind power pile foundation engineering, in particular to a super-large-diameter prestressed concrete tubular pile for offshore wind power and a construction method thereof. Background technique [0002] my country is rich in offshore wind power resources, and has the characteristics of high operating efficiency, short transmission distance, convenient on-site consumption, no land occupation, and suitable for large-scale development. Offshore wind power will become an inevitable choice for my country to vigorously develop renewable energy. Among the variables that ensure the safe and stable operation of offshore wind power, basic engineering is a very important one. Due to the special conditions of offshore construction and operating environment, the stability, durability and economy of the basic engineering of the structure are particularly important. [0003] Offshore wind power foundation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/58E02D5/36E02D15/04E02D27/42E02D27/52F03D13/25F03D13/10
CPCY02E10/72Y02E10/727
Inventor 龚维明时仓艳王磊陈祉阳戴国亮朱建民
Owner SOUTHEAST UNIV
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