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Combined offshore four-buoy four-buoyancy-tank foundation structure and construction method thereof

A floating box foundation and combined technology, applied in basic structure engineering, construction and other directions, can solve problems such as restricting the development of tubular foundations, buckling of steel structures such as skirts, and difficulty in leveling control, and achieves increased anti-slip stability. , Improve the lateral stiffness, the effect of small waterline surface area

Active Publication Date: 2018-01-26
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sinking process of the cylindrical foundation with a large aspect ratio has the problems of insufficient sinking and difficult leveling control. At the same time, there are problems such as buckling of steel structures such as skirt boards under working conditions, which also restricts the performance of the cylindrical foundation. develop

Method used

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  • Combined offshore four-buoy four-buoyancy-tank foundation structure and construction method thereof
  • Combined offshore four-buoy four-buoyancy-tank foundation structure and construction method thereof
  • Combined offshore four-buoy four-buoyancy-tank foundation structure and construction method thereof

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Embodiment Construction

[0035] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0036] Such as Figure 1 to Figure 3 As shown, this embodiment discloses a combined offshore four-pontoon pontoon foundation structure, which mainly includes four identical pontoons 1 , four identical pontoons 2 , and a transition section tower 3 .

[0037] The four buoys 1 are connected successively according to their center points on the horizontal plane and can be arranged to form a square.

[0038] Such as Figure 4 As shown, each buoy 1 is composed of a buoy top cover 11, a cylinder wall 12, a tube skirt 13, a radial rib 14, a circumferential rib 15, a subdivision plate 16, and a buoy bottom cover 17, wherein the buoy bottom cover 17 and other The parts are not fixedly connected and are only used during transportation. The upper edge ...

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Abstract

The invention belongs to the technical field of foundation structures of marine engineering and discloses a combined offshore four-buoy four-buoyancy-tank foundation structure and a construction method thereof. The foundation structure comprises four buoys which are arranged by sequentially being connected into a square on the horizontal plane according to the center points; a buoyancy tank is connected between every two adjacent buoys, and each buoyancy tank penetrates through the axes of the buoys at the two ends of the buoyancy tank along the center lines in the length direction; and a transitional section tower is connected to the upper portions of the buoys and the buoyancy tanks and used for being connected with upper wind power equipment. The construction method of the combined offshore four-buoy four-buoyancy-tank foundation structure comprises the steps of structure prefabricating, initial setting preparation, water consignment, entry-to-water of the foundation, negative pressure penetration, grouting ballasting, installation of an upper structure, and recycling. The combined offshore four-buoy four-buoyancy-tank foundation structure integrates the characteristics of a gravity type foundation and a suction barrel type foundation, the transportation and installation modes are simple while the bearing capacity is improved, recycling and reuse are achieved, and the construction cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of basic structure of ocean engineering, in particular, it relates to a basic structure applied to offshore wind power and offshore wind measurement facilities and its construction method, which realizes the integration of overall assembly, transportation control, sinking installation and recovery. chemical work. Background technique [0002] The development of offshore wind farms has gradually received more and more attention and participation. The construction of offshore wind farms needs to consider the basic structure of equipment installation, typical important structures such as offshore wind measuring towers and offshore wind turbines. The traditional foundation types include gravity foundation and single pile foundation. At present, most of the foundation types used include steel pipe pile foundation (wind measuring tower), tripod foundation, jacket foundation and suction cylinder foundation (wind tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/52
CPCY02E10/727
Inventor 丁红岩张浦阳练继建
Owner TIANJIN UNIV
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