Novel single pillar structure and mounting method thereof

An installation method, a single-column technology, applied in the field of marine engineering

Active Publication Date: 2008-11-05
NEPTUNE OFFSHORE ENG DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are deficiencies in the above two types of single-column structures when they are subjected to external forces.

Method used

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  • Novel single pillar structure and mounting method thereof
  • Novel single pillar structure and mounting method thereof
  • Novel single pillar structure and mounting method thereof

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Embodiment Construction

[0010] The new single-column structure see figure 1 , consisting of a cylinder body 1, a top cover 2, a central guide cylinder 3, an upper rib 4, a lower rib 5, a grouting spray ring 6, a mud cleaning ring 7, driven piles 8, a central column 9, and a small platform 10 Composed of pump port 12, the driven pile 8 is located in the center guide cylinder 3, the central column 9 and the small platform 10 are connected with the driven pile 8; the top surface of the top cover 2 is provided with a pump port 12, and a submersible pump 13 or a pneumatic pump is installed above it. Pump.

[0011] The new single-column structure is integrally hoisted into the water and released figure 2 At this moment, the suction pile, the driving pile 8 and the sending pile 11 and the submersible pump 13 are lowered to the seabed mud surface by the floating crane 14, and the initial mud entry of the suction pile and the driving pile 8 foundation reaches the sealing condition by dead weight.

[0012] ...

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Abstract

A new single post structure and an installation method thereof are disclosed, the structure is composed by a suction pile + driven pile 8, a central vertical post 9 and a small platform 10, characterized in that the structure adopts a combination basic of suction type + driven type, the small platform 10 forms an integrative structure with the central vertical post 9 by welding. A central guide cylinder 3 is located in centre of the cylinder body 1, upper end is higher than a top cover 2 with a bell-mouthed shape, the lower end is horizontal to bottom end of the cylinder body 1. A mud-cleaning jetting ring 7 is provided in middle of a lower rib plate 5 of the central guide cylinder 3 and a grouting jetting ring is provided in the middle of the central guide cylinder 3. The top cover 2 is provided with a pump hole 12 for installing an underwater pump 13 or a pneumatic pump. The invention has the advantages that the new single post structure varies P-Y curve of surface layer soil, which is in favour of reduction of displacement under horizontal force, and meanwhile enhances structural intensity of the post. During the construction, the combination basic of the new single post structure lessens hoisting weight, in the meantime, the suction pile assists and positions the driven pile.

Description

technical field [0001] The invention belongs to the innovation of an offshore single-column structure type and an installation method thereof in the field of ocean engineering. Background technique [0002] At present, there are two types of single-column structures widely used in marine engineering, one is the driven pile structure, and the other is the suction pile structure. According to the characteristics of soil resistance, the bearing capacity of the surface soil is very weak, and the structure of the driven pile is slender, so it will produce a large horizontal displacement on the mud surface when it is affected by the natural environment force, which may easily lead to driving. The pile structure is damaged due to fatigue. At the same time, when the driven pile is constructed offshore, it needs to be assisted by erection devices. However, this type of structure is characterized by mature offshore construction technology; and the suction pile improves the bearing cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00
Inventor 王翎羽
Owner NEPTUNE OFFSHORE ENG DEV
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