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Method for calculating bearing capacity of suction pile foundation of offshore construction platform

A technology of construction platform and calculation method, applied in the direction of design optimization/simulation, special data processing application, instrument, etc., can solve the problem of non-normative guidance documents for the design of suction pile foundation bearing capacity and so on

Pending Publication Date: 2022-03-22
THE 5TH ENG MBEC
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Problems solved by technology

[0005] At present, there is no normative guidance document for the design of the bearing capacity of the suction pile foundation. Engineering practice mainly depends on the cognition and engineering experience of the designer, which has problems such as blindness and subjectivity.

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  • Method for calculating bearing capacity of suction pile foundation of offshore construction platform
  • Method for calculating bearing capacity of suction pile foundation of offshore construction platform
  • Method for calculating bearing capacity of suction pile foundation of offshore construction platform

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Embodiment Construction

[0061] The present invention will be described in detail below in combination with specific embodiments.

[0062] A calculation method for the bearing capacity of a suction pile foundation on an offshore construction platform. The main goal of the design of the suction pile foundation is to be able to sink safely to a specified depth and meet the requirements for bearing capacity and stability. The method specifically includes the following steps:

[0063] (1) Obtain the bottom layer distribution, geophysical and mechanical properties and calculation parameters of the foundation construction area; determine the vertical load, horizontal load, bending moment and load combination on the top of the suction bucket; grasp the environmental information of the pile position, such as the elevation of the water surface and the elevation of the mud surface;

[0064] (2) Determine the size of the barrel: when determining the size of the barrel, the diameter of the barrel, depth of penetra...

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Abstract

The invention discloses a method for calculating the bearing capacity of a suction pile foundation of an offshore construction platform. The calculation method comprises the following steps: calculating the penetration resistance of the suction pile foundation in cohesive soil, cohesionless soil and a layered soil layer, calculating the bearing capacity, calculating the structural strength and stability of a barrel body, and selecting related parameters. The penetration construction process of the suction barrel is controlled by accurately estimating the penetration resistance in the negative pressure penetration process and controlling the negative pressure. The successful design and application of the suction pile foundation open up prospects for application and development of offshore structure mooring systems, suction anchors, anti-sliding piles of pull-type mat platforms, breakwaters, platform foundations and offshore wind power foundations in the future.

Description

technical field [0001] The invention relates to the technical field of offshore wind power engineering construction, in particular to a method for calculating the bearing capacity of a suction pile foundation of an offshore construction platform. Background technique [0002] With the rapid development of my country's economy and society, the scale of offshore wind power construction continues to increase. The construction of wind power foundations is greatly affected by the harsh marine environment, and the construction time is short. [0003] With the development of wind turbine technology, the capacity of a single unit has been gradually increased, the reliability of the unit has been further improved, and large-scale offshore wind power has gradually appeared. Large-scale wind turbines adopt four-pile non-rock-socketed jacket foundations, three-pile rock-socketed jacket foundations, and suction pile foundations. The foundation of the unit is constructed using a three-pi...

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Application Information

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IPC IPC(8): G06F30/13G06F30/20G06F119/02G06F119/14
CPCG06F30/13G06F30/20G06F2119/14G06F2119/02
Inventor 叶绍其刘华全王宝强潘胜平赵勇何万虎郭华彭志南周松刘剑李元松候瑛李昭宪张鑫
Owner THE 5TH ENG MBEC
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