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Ocean engineering foundation adopting pile-barrel foundation structure

A technology of marine engineering and bucket foundation, which is applied in the field of marine engineering foundation and its construction, can solve the problems of many influencing factors, and achieve the effect of good vertical bearing capacity and good resistance level.

Inactive Publication Date: 2013-05-22
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex marine environment and many influencing factors, marine engineering has higher and higher requirements for the foundation, and existing technical means cannot meet this demand.

Method used

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  • Ocean engineering foundation adopting pile-barrel foundation structure
  • Ocean engineering foundation adopting pile-barrel foundation structure
  • Ocean engineering foundation adopting pile-barrel foundation structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Sink the bucket first and then sink the pile

[0025] Such as figure 1 , as shown in 2, 3, and 4, a marine engineering foundation adopting a pile-barrel foundation structure, including a pile body and a barrel body, six symmetrical ribs 400 are arranged on the top of the barrel body, and the symmetrical ribs 400 play a role in fixing The function of stabilizing the barrel body, strengthening the structure of the barrel body, and preventing the horizontal deformation of the top surface of the barrel. The shape is composed of a triangle and a rectangle, and the rectangular top of the rib plate is slightly higher to support the pile body. A spring cube is arranged on the facade of the rib near the mouth end of the bucket.

[0026] Six symmetrical trapezoidal pile wings are correspondingly arranged at about 1 / 3 of the top of the pile body. Below the pile wing 500, six symmetrical downward opening grooves 510 are arranged on the pile body corresponding to the f...

Embodiment 2

[0029] Embodiment 2: the method of sinking the pile first and then sinking the bucket

[0030] Such as Figure 5 , as shown in 6, a marine engineering foundation using a pile-bucket foundation structure, including a pile body and a barrel body, the top 1 / 3 of the pile body 100 is provided with a disc support plate 110 of the same material, and its radius is larger than that of the barrel mouth 210 radius, to play the effect of supporting barrel body 200. Six symmetrical ribs 220 are arranged on the top of the bucket, and the symmetrical ribs 220 play a role in fixing the stability of the bucket body 200, strengthening the structure of the bucket body, and preventing the horizontal deformation of the top surface of the bucket. A gap is reserved under the rib plate 220, and a felt rubber ring is fixed near the bung mouth 210, with an opening at its center, and the opening diameter is slightly smaller than the diameter of the pile body 100 to play a sealing role.

[0031] When ...

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Abstract

The invention discloses an ocean engineering foundation adopting a pile-barrel foundation structure, wherein a first pile-sinking and then barrel-sinking method and a first barrel-sinking and then pile-sinking method are adopted. After the pile-barrel foundation structure is sunken into a seabed soil layer, upward-pulling, downwards-pressing and horizontal loads are resisted by using a special node structure so as to maintain the stability of a foundation structure; and the engineering property of the pile-barrel foundation is combined with the mechanical design performance to perform structural reinforcement on the combined part of the pile and the barrel. The ocean engineering foundation disclosed by the invention not only can be used for exerting favorable vertical bearing capacity of a pile foundation, but also retains the favorable capability of the barrel foundation in resisting a horizontal load. The ocean engineering foundation can make the two foundations complement the advantages of each other, and has favorable development prospect and a value for deep engineering research.

Description

technical field [0001] The invention relates to the field of marine building construction, in particular to a marine engineering foundation adopting a pile-bucket foundation structure and a construction method thereof. Background technique [0002] With the development of my country's offshore offshore oil and gas fields and deep-water wharves, the pile-barrel foundation structure provides a new way for the construction of marine structures. ABAQUS software is used to analyze the ultimate bearing capacity of pile-barrel foundations of different sizes and the change of the affected area of ​​foundation soil. The part of the pile-bucket foundation where the stress is greater is at the junction of the pile and the bucket, and the pile and the bucket are two parts of the same foundation structure. When they interact in the soil, the overall stiffness, bending resistance, and There is also a big difference in horizontal load capacity and pull-out and compressive capacity. Due t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/20E02D27/52
Inventor 刘文白王大山周健史旦达邓益兵李业勋
Owner SHANGHAI MARITIME UNIVERSITY
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