CN201539372U

CN201539372U - Raft plate type wind generator foundation structure

Info

Publication number: CN201539372U
Application number: CN2009202004815U
Authority: CN
Inventors: 孙杏建; 黄春林; 冯卫江; 柳丽香
Original assignee: Hydrochina East China Engineering Corp
Current assignee: Hydrochina East China Engineering Corp
Priority date: 2009-11-19
Filing date: 2009-11-19
Publication date: 2010-08-04
Anticipated expiration: 2019-11-19

Abstract

The utility model relates to a raft plate type wind generator foundation structure, which resolves the technical problems of being suitable for offshore wind farm foundation conditions, having strength and deformation of a foundation structure meeting requirements of wind generator groups, and having low cost, reliability, simple and convenient construction, and material saving. The foundation structure is characterized by being provided with a polygonal base plate seated on a foundation, wherein an intermediate pier with a shape corresponding to that of the base plate is arranged at the centre of the base plate, a radial primary beam is connected between each corner of the base plate and each lateral wall of the intermediate pier and penetrates through an intermediate pier central line, and the outer ends of the primary beams are mutually connected by secondary beams to form a closed ring. The foundation structure is mainly applicable in offshore wind farm construction engineering.

Description

The board-like wind driven generator base structure of a kind of raft

Technical field

The utility model relates to technical field of civil engineering, and the board-like wind driven generator base structure of particularly a kind of raft mainly is applicable to land wind power plant construction project.

Background technique

In China, the wind-power electricity generation industry is an emerging industry.Last century, the eighties rose, and China's introduction of foreign technology is Construction of Wind farm at home progressively, after 2000, because country encourages the development and utilization to renewable energy sources, domestic wind-power electricity generation industry was developed rapidly.

Up to the present, China in the Inner Mongol, Xinjiang, Hebei and the coastal region in east China built up large quantities of land wind energy turbine set.2008, National Energy Board the development wind-powered electricity generation as improving one of vital task of power supply architecture, respectively in the Inner Mongol, the abundant areas of wind energy resources such as Gansu, Xinjiang, Hebei and Jiangsu have carried out the planning and the building-up work in 6 ten million multikilowatt wind-powered electricity generation bases.

Land wind driven generator base is generally big monolith structure, this type of structural type has characteristics such as simply clear and definite, that construction is simple and convenient, but this type of structural type exists the concrete material consumption big simultaneously, hydration heat of cement is big, problems such as thermal cracking may appear in the basis, and the existence of these problems has increased construction investment and difficulty of construction.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of land wind energy turbine set foundation condition that is applicable to is provided, fondational structure intensity and distortion can both be satisfied the requirement of wind power generating set, and the board-like wind driven generator base structure of raft of cheap, reliable, easy construction, saving material.

The technological scheme that the utility model adopted is: provide a kind of raft board-like wind driven generator base structure, it is characterized in that: this structure has the polygonal base plate that is seated on the ground, base plate central authorities are the corresponding middle piers of profile and base plate, the girder radially of pier center line in being connected with between each angle of base plate and the middle pier sidewall, the outer end of each girder is connected into the circle of sealing by secondary beam.

Bury foundation ring underground in the pier in described, its top connects the tower tube.

Described base plate and middle pier are polygonal.

In the sash that girder, secondary beam and middle pier form, fill plain soil in addition.

The beneficial effects of the utility model are: the raft plank frame that (1) adopts beam, plate, middle pier to form, and tower tube Load Transfer is passed to beam then to middle pier, is passed to plate, and stressed simple clear and definite, structural safety is reliable; (2) big block basis commonly used is at present compared, the raft slab foundation is replaced the deadweight of part concrete with the deadweight of banketing, and reduces the concrete works amount; (3) the board-like wind driven generator base concrete amount of raft is few, and the hydration heat of its generation is also little, and because surface area increases, has reduced the possibility that surface temperature crack produces; (4) adopt outstanding mould to put in order and water, its structural entity is firmer, easy construction.

Description of drawings

Fig. 1 is the plan view of present embodiment.

Fig. 2 is the plan view of present embodiment.

Embodiment

As Fig. 1, shown in Figure 2, the described fondational structure of present embodiment is the board-like wind driven generator base structure of raft, during enforcement, ground general and wind power plant is implemented simultaneously, when the foundation surface concrete is in not dried state, just the punching block that design team is installed lifts the scene, place foundation surface, guarantee that ground and fondational structure are formed by integrally casting, after the adjustment of punching block position was confirmed, operator adopted the whole technology of watering of outstanding mould that all parts primary concretings are finished toward the interior concreting of punching block in the construction, the benefit that adopts primary concreting to finish is to allow fondational structure more sturdy and durable, and it is easier that construction also becomes.

Forming octagonal base plate 3 after the form removal falls within on the ground, there are profile and the corresponding middle pier 4 of base plate in base plate central authorities, the girder radially 1 of pier center line in being connected with between each angle of base plate and the middle pier sidewall, the outer end of each girder connects into the circle of sealing by secondary beam 2, and the overall similar that forms of base plate, Zhong Dun, girder and secondary beam is in hollow positive eight terrace with edges.Bury foundation ring 5 in addition in middle pier 4 underground, foundation ring top connects the tower tube 6 of blower fan.In the sash that girder 1, secondary beam 2 and middle pier 4 form, also need to fill plain soil, the deadweight of part concrete is replaced in the deadweight that its objective is soil, reduce the concrete works amount, the board-like wind driven generator base concrete amount of raft is few, the hydration heat of its generation is also little, and, reduced the possibility that surface temperature crack produces because surface area increases.

Claims

1. board-like wind driven generator base structure of raft, it is characterized in that: this structure has the polygonal base plate (3) that is seated on the ground, base plate central authorities are the corresponding middle piers (4) of profile and base plate, the girder radially (1) of pier center line in being connected with between each angle of base plate and the middle pier sidewall, the outer end of each girder is connected into the circle of sealing by secondary beam (2).

2. the board-like wind driven generator base structure of raft according to claim 1 is characterized in that: bury foundation ring (5) underground in the pier (4) in described, its top connects tower tube (6).

3. the board-like wind driven generator base structure of raft according to claim 1 and 2 is characterized in that: described base plate (3) He Zhongdun (4) is a polygonal.

4. the board-like wind driven generator base structure of raft according to claim 1 and 2 is characterized in that: fill plain soil in the sash that girder (1), secondary beam (2) He Zhongdun (4) form.

5. the board-like wind driven generator base structure of raft according to claim 3 is characterized in that: fill plain soil in the sash that girder (1), secondary beam (2) He Zhongdun (4) form.