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A comprehensive offshore foundation survey and testing platform

A foundation and platform technology, applied in infrastructure engineering, infrastructure testing, water conservancy engineering, etc.

Active Publication Date: 2018-08-31
THE FRONTIER TECH RES INST OF TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The negative pressure sinking process of the suction barrel foundation involves the interaction between water-soil-structure, which is a relatively complex and cutting-edge subject. At present, there is no generally accepted method to determine the negative pressure drag reduction effect of the soil.

Method used

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  • A comprehensive offshore foundation survey and testing platform
  • A comprehensive offshore foundation survey and testing platform

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Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] attached by figure 1 And attached figure 2 It can be seen that the offshore foundation survey and detection comprehensive platform of the present invention mainly consists of a cylindrical foundation 1 with an intermediate empty cabin, a transition section 2, a water platform 3, an in-situ cross plate test equipment 4, and a static penetration test (CPT / CPTU) Equipment 5. Full flow penetration test (T-bar / Ball-bar, etc.) 6. Drilling sampling survey operation equipment 7. Reserved empty cabin without roof 8. Negative pressure jet pump 9. Negative pressure detection and testing module 10 and internal airbag 11 compositions. The cylindrical foundation 1 has a diameter of 10-15m and a height of 5-8m, extending out of the sea through the transition section 2 .

[0018] The upper end of the transition section 2 is connected to a water platform 3 with a diameter of...

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Abstract

The invention discloses an offshore foundation reconnaissance and detection integrated platform, and relates to the field of ocean engineering foundation reconnaissance. A cylindrical base stretches out of the sea surface through a transition section; the upper end of the cylindrical base is connected with a water platform; in-situ cross plate testing equipment, static cone penetration test equipment, full-flow penetration test equipment and drilling, sampling and reconnaissance operation equipment are mounted at the upper part of the water platform; a cylindrical partition is arranged inside the cylindrical base to form a reserved void compartment without a top plate; the top of the reserved void compartment without the top plate opens to the water platform; the number of negative pressure jet pumps and the number of negative pressure detection test modules are the same as the number of branch bins of the cylindrical base; four negative pressure jet pumps and four negative pressure detection test modules are arranged on the periphery of the top of the cylindrical base; inner air bags are arranged in the branch bins of the cylindrical base, and are used for adjusting and centralizing in the sinking process. The integrated offshore foundation reconnaissance and detection platform has the benefits that the platform and an offshore wind flashlight type basic mounting ship are coordinated to be used, no extra tug boat or other mounting equipment is needed, and the operation time and cost are greatly reduced.

Description

technical field [0001] The invention relates to the field of marine engineering foundation survey, and is an offshore foundation survey and detection comprehensive platform built on a cylindrical foundation. Background technique [0002] At present, borehole sampling is often used in offshore marine engineering to carry out foundation surveys. Due to the possible disturbance of the soil during transportation, the survey results are inaccurate. Therefore, the in-situ test can better reflect the geological characteristics of the site. As a recyclable foundation form, the barrel foundation is very suitable as the foundation form of an in-situ survey platform in the offshore because of its excellent bearing characteristics and foundation stability. [0003] Secondly, the suction barrel foundation is a new type of marine engineering foundation structure. Because its material cost and installation cost are lower than those of pile foundations, and it is easy to transport and insta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00E02D33/00
CPCE02B2017/0078
Inventor 练继建刘润郭绍曾燕翔
Owner THE FRONTIER TECH RES INST OF TIANJIN UNIV
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