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Application method of pile-cable combination platform to adapt to tidal range changes

A technology of combining platforms and platforms, applied in the direction of floating buildings, etc., can solve the problems of increasing the size of the foundation, the impact of platform functions, and the increase in the cost of the pile foundation platform, so as to reduce the free length and diameter, reduce the cost of offshore construction, increase the The effect of changing the range

Inactive Publication Date: 2017-07-07
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Application method of pile-cable combination platform to adapt to tidal range changes
  • Application method of pile-cable combination platform to adapt to tidal range changes
  • Application method of pile-cable combination platform to adapt to tidal range changes

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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-cable combined platform and its application method for adapting to tidal range changes. It adapts to normal changes in water level through the relative lifting movement of the pile foundation and the top platform, and adapts to drastic changes in water depth through the retraction and release of tension cables. The range of applicable water depth and tidal level of the top platform is increased, and the problem of excessive size of each pile body in the pile foundation is solved under the limitation of the high tidal range platform design air gap. The free length and diameter can reduce the cost of offshore construction accordingly. It is a structural form suitable for offshore platforms with frequent storms, large tidal range changes, and harsh 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 Patents(China)
IPC IPC(8): B63B35/44
Inventor 王慧
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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