CN211547793U

CN211547793U - Be applicable to deep open sea pile foundation jacket foundation pile inner wall desilting and sealing device

Info

Publication number: CN211547793U
Application number: CN201922017873.4U
Authority: CN
Inventors: 甘毅; 胡雪扬; 杨德; 张金福; 杨伟华; 周通; 王宇楠
Original assignee: Fuzhou Strait Power Generation Co ltd; Fujian Provincial Investigation Design & Research Institute Of Water Conservancy And Hydropower
Current assignee: Fujian Water Resources And Hydropower Survey Design And Research Institute Co ltd; Fuzhou Strait Power Generation Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-22
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a be applicable to deep and deep sea pile foundation jacket foundation pile inner wall desilting and sealing device, including the steel-pipe pile, coaxial the inserting is equipped with the jacket in the steel-pipe pile, jacket outer wall lower extreme department has set firmly a plurality of sealing rubber circles, and this sealing rubber circle inboard all links firmly with the jacket outer wall, and the outside all closely laminates with the steel-pipe pile internal surface, and this be applicable to deep and deep sea pile foundation jacket foundation pile inner wall desilting and sealing device simple structure is reasonable, convenient high-efficient.

Description

Be applicable to deep open sea pile foundation jacket foundation pile inner wall desilting and sealing device

Technical Field

The utility model relates to an ocean engineering field, a be applicable to deep sea pile foundation jacket foundation pile inner wall desilting and sealing device.

Background

At present, the construction of offshore wind power plants in China is gradually promoted to the deep open sea, and a jacket foundation has remarkable advantages in a deep water environment and has a large-scale application trend in the field of offshore wind power in China. The jacket foundation is divided into a pile foundation and a jacket, and the pile foundation and the jacket are connected through grouting. The grouting connecting section is used as a key force transmission structure of a jacket foundation, and the grouting quality is one of the decisive factors of the safety of the jacket foundation structure. Grouting material is high to steel-pipe pile grout section inner wall cleanliness requirement, and the steel-pipe pile is after pile sinking is accomplished, because the subsidiary top layer earth of rivers, can form rapidly on the stake inner wall and adhere to one deck mud slick, greatly influences grouting construction quality. To shallow water sea area, accessible diver carries modes such as high-pressure squirt to carry out stake inner wall desilting, nevertheless to deep water sea area, the great and stake inner wall desilting effect of the above-mentioned mode construction degree of difficulty is relatively poor.

SUMMERY OF THE UTILITY MODEL

In view of the not enough of prior art, the utility model aims to solve the technical problem that a be applicable to deep open sea pile foundation jacket foundation pile inner wall desilting and sealing device is provided, not only simple structure is reasonable, uses convenient high-efficient moreover.

In order to solve the technical problem, the technical scheme of the utility model is that: including the steel-pipe pile, coaxial the inserting is equipped with the jacket in the steel-pipe pile, jacket outer wall lower extreme department has set firmly a plurality of sealing rubber circle, and this sealing rubber circle inboard all links firmly with the jacket outer wall, and the outside all closely laminates with the steel-pipe pile internal surface.

Furthermore, the contact position of the inner end of the sealing rubber ring and the jacket vertically extends downwards, then the sealing rubber ring is fixed with the jacket through a fixing bolt at the extending section, and the outer end of the sealing rubber ring obliquely extends upwards to contact with the steel pipe pile.

Further, the jacket is cylindric, and the equal vertical interval of sealing rubber circle sets firmly at the jacket outer wall.

Compared with the prior art, the utility model discloses following beneficial effect has: through this device, it has elastic sealing rubber circle to set up a plurality of layers in jacket insert section bottom, and wherein top layer sealing rubber circle mainly used grout is sealed, takes into account stake inner wall desilting effect, and all the other layers mainly used stake inner wall desilting. The plurality of layers of rubber rings are extruded in the process of inserting the jacket inserting section into the steel pipe pile to generate radial pressure on the outer wall of the steel pipe pile, so that the automatic dredging of the inner wall of the steel pipe pile by the sealing rubber rings in the process of inserting the jacket inserting section is realized, the problem of dredging in the pile of the deep water jacket foundation grouting section can be effectively solved, the construction progress is accelerated, the engineering investment is effectively controlled, the technology promotion value is good, and the application prospect in ocean engineering is wide.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a state to be installed according to an embodiment of the present invention;

FIG. 3 is a schematic view of the embodiment of the present invention in an installation and desilting state;

fig. 4 is a schematic view illustrating the fixing of the steel pipe pile and the jacket in the embodiment of the present invention.

In the figure: 1-steel pipe pile, 2-jacket, 3-sealing rubber ring, 4-fixing bolt and 5-grouting material.

Detailed Description

As shown in fig. 1-4, a device suitable for dredging and sealing inner wall of jacket foundation pile of deep and offshore pile foundation, comprises a steel pipe pile 1, a jacket 2 is coaxially inserted in the steel pipe pile, a plurality of sealing rubber rings 3 are fixedly arranged at the lower end of the outer wall of the jacket, the inner sides of the sealing rubber rings are fixedly connected with the outer wall of the jacket, and the outer sides of the sealing rubber rings are tightly attached to the inner surface of the steel pipe pile.

In the embodiment of the utility model, the contact department of the inner of sealing rubber circle and jacket extends vertically downwards, and it is fixed with the jacket through fixing bolt 4 at the back extension section, and the slant of sealing rubber circle outer end extends upwards and contacts with the steel-pipe pile.

The embodiment of the utility model provides an in, the jacket is cylindric, and the equal vertical interval of sealing rubber circle sets firmly at the jacket outer wall, because the sealing rubber circle is provided with a plurality of layers, can strike off the desilting layer upon layer, guarantees steel-pipe pile outer wall cleanliness factor, will perfect grout construction quality.

The utility model discloses theory of operation of embodiment: firstly, after the steel pipe pile is installed, namely the pile foundation is in place, vertically inserting a jacket into the steel pipe pile downwards, extruding a sealing rubber ring between the jacket and the steel pipe pile, scraping sludge attached to the inner wall of the steel pipe pile by the sealing rubber ring along with the downward movement of the jacket, stopping when the jacket moves downwards to a specified position, filling grouting material 5 in an annular space between the jacket and the steel pipe pile, and fixing the jacket and the steel pipe pile; a plurality of steel pipe piles are arranged, and a plurality of jacket pipes are arranged on the same principle and are fixedly connected into a whole.

The utility model discloses not be limited to above-mentioned best embodiment, anyone is in the utility model discloses a can all derive the deep open sea pile foundation jacket foundation pile inner wall desilting and the sealing device that is applicable to of other various forms under the enlightenment. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a be applicable to deep open sea pile foundation jacket foundation pile inner wall desilting and sealing device which characterized in that: including the steel-pipe pile, coaxial the inserting is equipped with the jacket in the steel-pipe pile, jacket lower extreme department has set firmly a plurality of sealing rubber circle, and this sealing rubber circle inboard all links firmly with the jacket pipe wall, and the outside all closely laminates with the steel-pipe pile internal surface.

2. The device for dredging and sealing the inner wall of the foundation pile of the deep open sea pile foundation jacket according to the claim 1, wherein: the inner end of the sealing rubber ring vertically extends downwards at the contact position with the jacket, then the sealing rubber ring is fixed with the jacket through a fixing bolt at the extending section, and the outer end of the sealing rubber ring obliquely extends upwards to contact with the steel pipe pile.

3. The device for dredging and sealing the inner wall of the foundation pile of the deep open sea pile foundation jacket according to the claim 1, wherein: the jacket is cylindrical, and the sealing rubber rings are fixedly arranged on the outer wall of the jacket at equal vertical intervals.