CN205116208U

CN205116208U - Offshore wind farm fan single pile basis

Info

Publication number: CN205116208U
Application number: CN201520860271.4U
Authority: CN
Inventors: 乐治济
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2016-03-30
Anticipated expiration: 2025-10-30

Abstract

The utility model provides an offshore wind farm fan single pile basis, including steel -pipe pile and bored concrete pile, a fan tower section of thick bamboo is installed to the steel -pipe pile top surface, the steel -pipe pile passes overburden vertical bracing in basement rock top surface under water, the lower extreme is equipped with the concrete linkage segment in the steel -pipe pile, several the bored concrete pile lower extreme builds in in the basement rock, and their the upper end all with concrete linkage segment rigid coupling becomes integrative. Because several the bored concrete pile lower extreme builds in in the basement rock, and their the upper end all with establish the concrete linkage segment rigid coupling of lower extreme becomes integrative in the steel -pipe pile, can realize adopting the existing equipment to implement the single pile basis like this on shallow overburden ground, do benefit to and use widely, and the expense is low.

Description

Marine wind electric field fan single-pile foundation

Technical field

The utility model relates to a kind of wind electric field blower foundation, particularly relates to a kind of marine wind electric field fan single-pile foundation.

Background technology

Wind energy as most can Development volue regenerative resource and enjoy the world to attract attention.The advantages such as marine wind electric field is more grown because having large, the effective generating dutation of wind speed, do not take land, distance load center is near, having well can DEVELOPMENT PROSPECT.China is vast in territory, seashore line length, and offshore wind energy resource is very abundant.

Offshore wind turbine must be supported on offshore wind turbine foundation; The complexity of marine environment, offshore wind turbine foundation cost accounts for more than 20% of marine wind electric field cost, therefore how to reduce blower foundation cost, reduce blower foundation offshore wind turbine foundation construction period, promote that the important topic that benefit is exploitation offshore wind farm is created in wind field closely early generating.Single-pile foundation because of its convenient and quick construction, good economy performance and receiving much concern.

At present, the blower foundation of more than 70% all adopts single-pile foundation in the world.Single-pile foundation sinks to seabed by a steel pipe pile, and steel pipe pile diameter is usually between 4 ~ 6m.Steel pipe pile is arranged on the place of 30 ~ 60m under sea bed.Tradition single pile generally all adopts pile hammer to sink to soil layer.But China Liaoning, Shandong, Zhejiang, Fujian, Guangdong, Guangxi etc. are coastal there is large area shallow overburden ground, because bedrock surface buried depth is shallow, often steel pipe pile cannot be sunk to the design altitude that design needs, single pile be applied and is subject to larger restriction.Have recently emerged the embedding technique for rock of single pile tunneling boring.But the embedding rock equipment that the embedding rock of tunneling boring uses needs special development, device-specific is strong, and costly, is unfavorable for promoting the use of.

Utility model content

The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of marine wind electric field fan single-pile foundation, for solving the above-mentioned technical problem existed in prior art.

For achieving the above object, the utility model provides following technical scheme:

A kind of marine wind electric field fan single-pile foundation, comprise steel pipe pile and castinplace pile, described steel pipe pile end face is provided with blower fan tower barrel, and described steel pipe pile is through covering layer vertical support in basal surfaces under water, and in described steel pipe pile, lower end is provided with concrete linkage section; Several described castinplace pile lower end build-ins are in basement rock, and their upper ends are all affixed integral with described concrete linkage section.

Further, three described castinplace pile lower end build-ins are in basement rock, and three described castinplace pile upper ends are all affixed integral with described concrete linkage section.

Further, three projections of described castinplace pile on basement rock distribute along same even circumferential.

As mentioned above, marine wind electric field fan single-pile foundation of the present utility model, has following beneficial effect:

Described steel pipe pile is supported in basal surfaces under water, and in described steel pipe pile, lower end is provided with concrete linkage section; Several described castinplace pile lower end build-ins are in basement rock, and their upper ends are all affixed integral with described concrete linkage section, can realize like this adopting existing equipment to implement single-pile foundation on shallow overburden ground, be beneficial to and promote the use of, and expense is low.

Accompanying drawing explanation

Fig. 1 is shown as marine wind electric field fan single-pile foundation schematic diagram of the present utility model.

Fig. 2 is shown as along A-A sectional view in Fig. 1.

Fig. 3 is shown as along B-B sectional view in Fig. 1.

Element numbers explanation

1 steel pipe pile

2 castinplace piles

3 blower fan tower barrels

4 basal surfaces

5 concrete linkage sections

Detailed description of the invention

By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this manual can understand other advantages of the present utility model and effect easily.

Refer to Fig. 1 to Fig. 3.Notice, structure, ratio, size etc. that this manual institute accompanying drawings illustrates, content all only in order to coordinate manual to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this manual as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.

As shown in Figure 1, the utility model provides a kind of marine wind electric field fan single-pile foundation, comprise steel pipe pile 1 and castinplace pile 2, described steel pipe pile 1 end face is provided with blower fan tower barrel 3, described steel pipe pile 1 is through covering layer vertical support in basal surfaces 4 under water, and in described steel pipe pile 1, lower end is provided with concrete linkage section 5; Several described castinplace pile 2 lower end build-ins are in basement rock, and their upper ends are all affixed integral with described concrete linkage section 5.

Preferably, three described castinplace pile 2 lower end build-ins are in basement rock, and three described castinplace pile 2 upper ends are all affixed integral with described concrete linkage section 5.Three projections of described castinplace pile 2 on basement rock distribute along same even circumferential.At guarantee bonding strength and support strength, and under convenient construction and saving material prerequisite, three described castinplace pile 2 diameters are identical and be not in contact with each other, and see Fig. 2 and Fig. 3.

Tradition single pile generally all adopts pile hammer to sink to soil layer; There is large area shallow overburden ground for coastal, the shallow situation of bedrock surface buried depth, often steel pipe pile cannot be sunk to the design altitude that design needs, single pile is applied and is subject to larger restriction.The embedding rock equipment that the embedding rock of tunneling boring uses needs special development, and equipment is few, costly.But marine wind electric field fan single-pile foundation of the present utility model is supported in basal surfaces 4 under water due to described steel pipe pile 1, and in described steel pipe pile 1, lower end is provided with concrete linkage section 5; And several described castinplace pile 2 lower end build-ins are in basement rock, and their upper ends are all affixed integral with described concrete linkage section 5, can realize like this adopting existing equipment to implement single-pile foundation on shallow overburden ground, be beneficial to and promote the use of, and expense is low, see Fig. 1.

With reference to figure 1, the construction method of marine wind electric field fan single-pile foundation of the present utility model, comprises the steps:

First use pile hammer to carry out piling construction, make described steel pipe pile 1 through covering layer and be supported in bedrock surface end face;

Utilize single-pile foundation erection construction platform, make several described castinplace pile 2 lower end build-ins in basement rock;

Concrete perfusion in described steel pipe pile 1, forms concrete linkage section 5, and this concrete linkage section 5 is affixed integral with described castinplace pile 2 upper end.

As from the foregoing, the construction method of this marine wind electric field fan single-pile foundation is fairly simple, and does not need Special Equipment, and operating expenses is low.

In sum, the utility model provides marine wind electric field fan single-pile foundation, because castinplace pile several described 2 lower end build-in is in basement rock, and their upper ends are all affixed integral with the concrete linkage section 5 being located at lower end in described steel pipe pile 1, can realize like this adopting existing equipment to implement single-pile foundation on shallow overburden ground, be beneficial to and promote the use of, and expense is low.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.

Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.

Claims

1. a marine wind electric field fan single-pile foundation, it is characterized in that, comprise steel pipe pile (1) and castinplace pile (2), described steel pipe pile (1) end face is provided with blower fan tower barrel (3), described steel pipe pile (1) is through covering layer vertical support in basal surfaces (4) under water, and described steel pipe pile (1) interior lower end is provided with concrete linkage section (5); Several described castinplace pile (2) lower end build-ins are in basement rock, and their upper ends are all affixed integral with described concrete linkage section (5).

2. marine wind electric field fan single-pile foundation according to claim 1, it is characterized in that: three described castinplace pile (2) lower end build-ins are in basement rock, and three described castinplace pile (2) upper ends are all affixed integral with described concrete linkage section (5).

3. marine wind electric field fan single-pile foundation according to claim 2, is characterized in that: three projections of described castinplace pile (2) on basement rock distribute along same even circumferential.