AU2019100710A4 - A new method to reduce local scour around subsea pile - Google Patents

A new method to reduce local scour around subsea pile Download PDF

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Publication number
AU2019100710A4
AU2019100710A4 AU2019100710A AU2019100710A AU2019100710A4 AU 2019100710 A4 AU2019100710 A4 AU 2019100710A4 AU 2019100710 A AU2019100710 A AU 2019100710A AU 2019100710 A AU2019100710 A AU 2019100710A AU 2019100710 A4 AU2019100710 A4 AU 2019100710A4
Authority
AU
Australia
Prior art keywords
local scour
pile
foundation
engineering
around
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU2019100710A
Inventor
Lin Lu
Mingming Liu
Qingyou LIU
Guoqiang Tang
Haiyan Zhu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Univeristy of Technology
Original Assignee
Chengdu Univeristy of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Univeristy of Technology filed Critical Chengdu Univeristy of Technology
Priority to AU2019100710A priority Critical patent/AU2019100710A4/en
Application granted granted Critical
Publication of AU2019100710A4 publication Critical patent/AU2019100710A4/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/226—Protecting piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Foundations (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Abstract This invention relates to a device to protect local scour around submarine foundation. Piles are commonly used in river and ocean engineering to support structures on top of the water surface. The examples of pile structures including bridge piers, legs of offshore platforms, foundation of wind farms. When a vertical circular pile is placed on an erodible bed, the amplification of the water flow velocity leads to local scour of the sediment around the structure. Local scour has attracted much attention because it is one of the main reasons that may cause structural failure in both bridge engineering and offshore engineering. By using this device properly, local scour around submarine foundation can be reduce up to 50%. Fig. 1

Description

Piles are commonly used in river and ocean engineering to support structures on top of the water surface. The examples of pile structures including bridge piers, legs of offshore platforms, foundation of wind farms. When a vertical circular pile is placed on an erodible bed, the amplification of the water flow velocity leads to local scour of the sediment around the structure. Local scour has attracted much attention because it is one of the main reasons that may cause structural failure in both bridge engineering and offshore engineering. A new device is invented to protect local scour around submarine foundation.
By using this device properly, local scour around submarine foundation can be reduce up to 50%.
Fig. 1 shows the sketch of this device. Submarine foundation is protected by using four short piles.

Claims (2)

  1. The claims defining the invention are as follows:
    1. A device to protect local scour around submarine foundation.
  2. 2. Diameter of the short pile is the same with the main pile and gap between the short pile and the main pile is one diameter of the main pile.
AU2019100710A 2019-06-27 2019-06-27 A new method to reduce local scour around subsea pile Ceased AU2019100710A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2019100710A AU2019100710A4 (en) 2019-06-27 2019-06-27 A new method to reduce local scour around subsea pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2019100710A AU2019100710A4 (en) 2019-06-27 2019-06-27 A new method to reduce local scour around subsea pile

Publications (1)

Publication Number Publication Date
AU2019100710A4 true AU2019100710A4 (en) 2019-08-01

Family

ID=67399565

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2019100710A Ceased AU2019100710A4 (en) 2019-06-27 2019-06-27 A new method to reduce local scour around subsea pile

Country Status (1)

Country Link
AU (1) AU2019100710A4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117738231A (en) * 2024-02-18 2024-03-22 保利长大工程有限公司 High-support underwater tower crane foundation and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117738231A (en) * 2024-02-18 2024-03-22 保利长大工程有限公司 High-support underwater tower crane foundation and construction method thereof
CN117738231B (en) * 2024-02-18 2024-05-17 保利长大工程有限公司 High-support underwater tower crane foundation and construction method thereof

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Legal Events

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FGI Letters patent sealed or granted (innovation patent)
MK22 Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry