Hollow cylinder pier used for fixing overwater platform structure at water bottom and installation and construction method thereof

An above-water platform and construction method technology, applied in underwater structures, infrastructure engineering, water conservancy projects, etc., can solve problems such as difficult anchoring and danger to users at sea, avoid underwater operations, reduce load requirements, and reduce manufacturing cost effect

Active Publication Date: 2015-09-16
GUANGDONG SEACITY DEV HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Floating bases are not easy to anchor in shallow water near the shore, and once the anchor chain breaks, the base will float aimlessly, posing a danger to other sea users

Method used

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  • Hollow cylinder pier used for fixing overwater platform structure at water bottom and installation and construction method thereof
  • Hollow cylinder pier used for fixing overwater platform structure at water bottom and installation and construction method thereof
  • Hollow cylinder pier used for fixing overwater platform structure at water bottom and installation and construction method thereof

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Embodiment Construction

[0064] In the various figures of the application, structurally identical or functionally similar features are indicated by the same reference numerals.

[0065] In the following, this description will schematically but not limitatively illustrate the hollow cylindrical pier for fixing the water bottom of the above-water platform structure according to the present invention, the above-water platform structure using the hollow pier and its installation and construction method, the above-mentioned above-water platform The structure can be a water building such as a lake or an offshore wind turbine or a bridge on the sea. The hollow cylindrical pier discussed in the present invention is a reinforced concrete prefabricated hollow cylindrical pier with a diameter of about 8 to 10 meters or more, and the technical solution of the present invention is especially suitable for use in the water bottom of soft ground.

[0066] The following description of the present invention only takes ...

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Abstract

Provided is a method of installing and constructing a hollow cylindrical pier for fixing an offshore platform structure to the bed, wherein a steel cylinder (101) with an inner diameter slightly greater than the hollow cylindrical pier is driven into the bed (2) until at least the bearing stratum is reached to ensure fixing, and part of the steel cylinder (101) is exposed above the water surface (1); draining ponding inside the steel cylinder (101), and excavating bed sediment inside the steel cylinder (101); cutting off the steel cylinder (101); hoisting a first hollow cylindrical pier section (1A) with a sealed bottom end vertically downwards from the water surface (1) towards the steel cylinder (101), pre-tensioning an overlapping hollow cylindrical pier section on the hollow cylindrical pier section via a shear key structure and then fixedly connecting same with the previous hollow cylindrical pier section, and hoisting same in turn such that after the sealed bottom end of the first hollow cylindrical pier section (1A) reaches near the bottom end of steel cylinder (101), at least part of the lastly hoisted overlapping hollow cylindrical pier section is exposed above the water surface (1); and pouring concrete (107) into a gap between the steel cylinder (101) and the hollow cylindrical piers. Further provided are a method of installing and constructing an offshore platform structure and a hollow cylindrical pier for fixing to the bed and an offshore platform structure.

Description

technical field [0001] The present invention generally relates to an above-water platform structure, in particular to an above-water building, an offshore fan base, an offshore bridge, and a hollow cylindrical pier for fixing the seabed of an offshore platform, and an installation and construction method thereof. The hollow cylinder pier installed and constructed according to the present invention combines the advantages of the large-diameter friction pile installation and construction method and the caisson installation and construction method buried in the seabed. The construction process of the present invention is similar to the construction of bored piles, but large diameter prefabricated hollow cylinder pier, and then fill the gap between the hollow cylinder pier and the steel cylinder as a temporary cofferdam with pressurized concrete to complete the construction and installation; according to the present invention, underwater operations are avoided, and the thickness of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00E02B17/02
CPCE02B17/0008E02B17/027E02B2017/0039E02B2017/0043E02D7/00E02D27/525
Inventor 黄灿光
Owner GUANGDONG SEACITY DEV HLDG LTD
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