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Pile and cable combined platform and application method adapting to tidal range changes thereof

A combined platform and platform technology, applied in the direction of floating buildings, etc., can solve the problems of platform function impact, increase of foundation scale, and increase of pile foundation platform cost, so as to reduce offshore construction costs, reduce free length and diameter, increase The effect of changing range

Inactive Publication Date: 2015-03-25
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

According to statistics, as the design water depth increases, the cost of the pile foundation platform will increase rapidly, because the longer free length increases the diameter of the pile foundation, and increasing the foundation scale also makes the construction of the structure more difficult
In addition, the excessively high air gap also makes it difficult for ships to berth under normal sea conditions, increases the cost of platform material transfer and production, and affects the functions of the platform

Method used

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  • Pile and cable combined platform and application method adapting to tidal range changes thereof
  • Pile and cable combined platform and application method adapting to tidal range changes thereof
  • Pile and cable combined platform and application method adapting to tidal range changes thereof

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] refer to figure 1 , a pile-cable combination platform in a large tidal range sea area of ​​the present embodiment, which includes a top platform 1 and a pile foundation composed of a plurality of pile bodies 2, the top platform 1 is a floating structure with self-floating ability, and the top platform 1 There is a ballast water tank inside, and the pile body 2 is a prefabricated driven pile, the pile top is exposed to the water surface at low tide level, and the pile top is submerged by the water surface at high tide level.

[0020] The top platform 1 of the present embodiment is provided with a plurality of wells 4 that correspond to and fit the pile body 2, and a plurality of tension cable boxes 7 fixed on the top of the well 4 are also provided on the top platform 1, and the tension cable boxes 7 are arranged inside the top ...

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Abstract

The invention discloses a pile and cable combined platform and an application method adapting to tidal range changes of the pile and cable combined platform. The pile and cable combined platform adapts to the normal change of the water level through relative lifting movement of a pile foundation and a top platform, the pile and cable combined platform adapts to the acute change of water depth by paying off and winding up tension cables, the change range of the applicable water depth and tidal range of the top platform is widened, and the problem that under the limit that the design air gap of a large tidal range sea area platform is too large, the sizes of all piles in the pile foundation are too large is solved. Due to the fact that the free length and diameter of the piles are reduced, offshore construction cost can be correspondingly lowered, and the pile and cable combined platform is an open sea platform structural mode suitable for frequent windstorms, the large tidal range changes and the severe environmental conditions.

Description

technical field [0001] The invention relates to the technical field of offshore platform construction, in particular to a pile-cable combined platform and its application method for adapting to tidal range changes. Background technique [0002] The offshore platform structure is an important structure for offshore oil and gas exploration and offshore production bases. In recent years, in order to develop oil and gas resources in deep waters and protect national marine rights and interests, it is imminent to establish offshore platforms in deep waters. However, the environmental load in the open sea is harsh, and it is controlled by huge horizontal loads such as wind, waves, and currents. The traditional pile foundation platform requires a high bearing capacity margin. In order to increase the bearing capacity of the foundation, it is necessary to design the diameter and scale of the pile foundation to be large, which makes the construction cost of the platform increase rapid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/44
Inventor 王慧
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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