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Multifunctional caisson foundation structure and embedding depth control method thereof

A caisson foundation and multi-functional technology, applied in the marine field, can solve the problems of increased difficulty of the caisson, large impact impact, and large bottom area of ​​the caisson, and achieve the effect of reducing the draught of upright self-floating towing

Pending Publication Date: 2019-12-24
深圳市移动海工技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem in the design and construction technology of this type of caisson foundation structure is that the main structure of the caisson is all exposed to seawater, and is particularly affected by the impact of various environmental loads of sea currents and waves.
However, the height of the caisson is relatively short, and the area of ​​the bottom of the caisson is relatively large, which makes it more difficult to insert the caisson into Haidian.

Method used

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  • Multifunctional caisson foundation structure and embedding depth control method thereof
  • Multifunctional caisson foundation structure and embedding depth control method thereof
  • Multifunctional caisson foundation structure and embedding depth control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1, multifunctional caisson infrastructure, such as figure 1 Shown, comprise cofferdam caisson 1, and cofferdam caisson 1 is a closed-loop structure, and its center has a square opening, and the shape of opening can be square, hexagonal, circular, octagonal etc.; Around this opening, its The four corners are four cube-shaped main boxes 11; the four main boxes 11 are made of steel plates, and the internal compartments can be used as floating bodies, and solid ballast and / or ballast water can be added in the main box 11 , can control the center of buoyancy of the main box 11; the adjacent inner corners of the four main boxes 11 are connected and fixed by the auxiliary box 12, and the auxiliary box 12 at the connection is also used as a floating body; each main box 11 adopts four A steel plate is separated to form four independent mixed ballast tanks 13 for filling solid ballast and ballast water; each auxiliary tank 12 is separated by two steel plates to form th...

Embodiment 2

[0076] Embodiment 2, multifunctional caisson foundation structure, its difference with embodiment 1 is, as image 3 As shown in Figure 4, in the space surrounded by the inner plate of the cofferdam caisson 1, there is a wellbore caisson 2, and the shape of the wellbore caisson 2 is the same as the space inside the cofferdam. The gap between the cofferdam caisson 1 and the shaft caisson 2 is about 1 meter.

[0077]The wellbore caisson 2 includes a grit chamber 21 and a multi-functional cabin 22. The grit chamber 21 is surrounded by decks to form a pool shape. The central shaft 23 of the grit chamber; and the grit chamber 21 and the multi-functional cabin 22 are arranged in two layers, and the top of the grit chamber 21 is opened in the present embodiment 2, which is convenient for pouring or removing sand; the grit chamber 21 is a rectangular shape, and There are 8 in quantity; the middle of the 8 grit chambers 21 is just a rectangular central well shaft 23, and just below the...

Embodiment 3

[0089] Embodiment 3, multifunctional caisson foundation structure, its difference with embodiment 1 is, as Figure 5 As shown, the outer shape of the cofferdam caisson 1 is a scalene octagonal shape.

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Abstract

The invention discloses a multifunctional caisson foundation structure and an embedding depth control method thereof. The multifunctional caisson foundation structure is characterized in that a ballast tank and mud discharge holes are arranged in a cofferdam type caisson foundation structure; two laps of short skirt plates are arranged on the inner and outer sides of the bottom; multiple distributive mud discharge holes are arranged in areas surrounded by the two laps of short skirt plates; 3 or 4 stand columns are arranged on the upper side surface of a cofferdam; a multifunctional cabin anda sand settling pool are arranged in a shaft caisson; a lap of ultrashort skirt plates is arranged on an outer side plate at the bottom; and a center shaft penetrating up and down is arranged in an area surrounded by the ultrashort skirt plates, and is used as a mud discharge working channel of embedding the shaft caisson in the seabed. The embedding depth control method is characterized in that the embedding depth is adjusted by adopting a method of adding the solid ballast weight in the cofferdam caisson and placing a high-pressure water gun and an air lifting mud sucking pipe in the mud discharge holes to remove soil under the cofferdam caisson.

Description

technical field [0001] The invention relates to the field of marine technology, more specifically, it relates to a multifunctional caisson foundation structure and a buried depth control method thereof. Background technique [0002] The bottom plates of various existing deep-water caisson foundation structures at home and abroad are all directly located on the seabed surface. For caisson foundation structures with thicker silt on the foundation surface, long skirts or piling support designs are basically adopted. The main problem in the design and construction technology of this type of caisson foundation structure is that the main structure of the caisson is all exposed to seawater, and is particularly greatly affected by the impact of various environmental loads of sea currents and waves. In order to reduce the impact of environmental loads, the height of the caisson needs to be limited. However, the height of the caisson is relatively short, and the area of ​​the bottom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/00E02D23/08
CPCE02D23/00E02D23/08
Inventor 黄三平吴会云吴其明
Owner 深圳市移动海工技术有限公司
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