Maneuvering bottom resting offshore platform and installation method thereof
An offshore platform and platform technology, which is applied in water conservancy projects, artificial islands, underwater structures, etc., can solve problems such as unfavorable marine environment sustainable development, and achieve good bottoming effect, good stability, and convenient operation
Active Publication Date: 2015-12-23
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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Problems solved by technology
Because the pile legs need to be inserted into the deep seabed, when the platform is abandoned or evacuated, considering economic reasons, the pile legs are generally cut off directly, and the pile legs are left on the ocean, which is not conducive to the sustainable development of the marine environment
Method used
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[0022] refer to Figure 1-5 , is a mobile bottom-seat offshore platform, including a platform body 1 with several watertight compartments 4 and ballast tanks 3 separated by bulkheads 2 , wherein the watertight compartments 4 are located above the ballast tanks 3 . In the platform main body 1, an airbag compartment 5 communicating with the top and bottom of the platform main body 1 is provided. The airbag compartment 5 is provided with an airbag 10 that can extend to the bottom of the platform main body 1, and several positioning devices are respectively provided along the periphery of the platform main body 1. Each positioning device includes a positioning pile 8 pierced in the positioning pile hole 6 and an adjustment device 7 for adjusting the length of the positioning pile 8 extending downward to the bottom of the platform main body 1 . The positioning pile 8 includes a hollow column 12 and a hollow sleeve 13 sleeved on the bottom of the column 12 , wherein the sleeve 13 is...
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The invention discloses a maneuvering bottom resting offshore platform which comprises a platform body provided with multiple watertight compartments and ballast tanks. Air bag compartments communicated with the outer side of the bottom of the platform body are arranged in the platform body. Air bags capable of extending to the bottom of the platform body are arranged in the air bag compartments. Multiple locating devices are arranged on the periphery of the platform body respectively. Each locating device comprises a locating pile penetrating a locating pile hole and an adjusting device used for adjusting the length of the portion, extending downwards to the outer side of the bottom of the platform body, of the locating pile. In the bottom resting process, the locating piles are placed in the locating pile holes, so that the bottoms of the locating piles make contact with the surface of a foundation, and the platform body is temporarily fixed to the foundation. Water is injected into the ballast tanks, the lengths of the portions, extending out of the bottom of the platform body, of all the locating piles are controlled, the falling position and the levelness of the platform body are adjusted, the air bags are placed down from the air bag compartments and inflated, and therefore gaps between the platform body and the surface of the foundation are filled. The maneuvering bottom resting offshore platform is flexible, capable of being evacuated at any time and well-adapted.
Description
technical field [0001] The invention relates to an offshore platform technology, in particular to a maneuverable bottom-seat offshore platform and an installation method. Background technique [0002] With the continuous development and utilization of the ocean, offshore operations are becoming more and more frequent, and there are more and more offshore platforms for offshore operations. The marine environment is an important part of human survival and development. The sustainable development of protecting the marine environment has very important practical significance. [0003] The foundations of the current gravity-fixed and bottom-sitting offshore platforms are mostly built on dense sandy soil, avoiding loose sand or thicker soft soil foundations, and the foundations should be flat. For uneven terrain, it is generally necessary to process the terrain first by scouring, throwing gravel and other methods. This process will cause damage to the seabed resource environmen...
Claims
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IPC IPC(8): E02B17/00
Inventor 丁桦周秋萍
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI