CN204849807U - Fill novel wind -powered electricity generation pylon basis of building rubbish - Google Patents

Abstract

The utility model discloses a novel wind power tower foundation filled with construction waste, comprising a bottom plate, pipe piles, pipe pile caps, column piers and tower foundation rings, the pipe piles are arranged on the bottom plate, and the lower ends of the pipe piles are fixed to the bottom plate connected into one. The middle and lower parts of the pipe pile are filled with layered and compacted construction waste, the upper part of the construction waste is a plain concrete layer formed by pouring, and the upper end surface of the plain concrete layer is lower than the upper port of the pipe pile. The pipe pile cap is located above the plain concrete layer and is fixedly connected with the plain concrete layer. The column pier is installed above the pipe pile cap. The column pier is connected to the pipe pile cap through anchoring steel bars. The tower foundation The lower portion of the ring fits vertically in the center hole of the pier. The foundation structure is simple, construction waste can be utilized, construction materials are saved, and at the same time, it can meet the bearing capacity requirements of the foundation of a large wind turbine tower.

Description

New wind power tower foundation filled with construction waste

technical field

The utility model relates to the technical field of wind power facilities, in particular to a novel wind power tower foundation filled with construction waste.

Background technique

China has a vast territory, a long coastline, and relatively rich wind energy resources. According to estimates based on the height of 10m above the ground from more than 900 weather stations across the country, the national average wind power density is 100W/m ² , and the total wind energy resources are about 3.223 billion kW, which can be developed The utilization of land wind energy is about 253 million kW, and the total amount of wind energy ranks among the top in the world. As a clean energy, more and more attention has been paid to the use of wind energy. The goal of the National Twelfth Five-Year Plan is: by 2015, the installed capacity of wind power in operation will reach 100 million kilowatts, and the annual power generation will reach 190 billion kilowatt-hours. Wind power generation accounted for more than 3% of total power generation.

According to the power of the fan and the bearing capacity of the foundation, the diameter of the foundation is generally 15-25 meters, and the height is generally 3-5 meters. The foundation is a reinforced concrete structure as a whole, and the amount of steel and concrete is relatively large. Taking a circular wind power foundation with a unit capacity of 1.5MW as an example, when the geological conditions are good, the design height of the foundation is about 3.5 meters, and the diameter is about 18 meters. It requires about 500m3 of concrete and about 35 tons of steel. A 500,000-kilowatt wind farm needs 330 1.5MW wind turbines, a total of 165,000 cubic meters of concrete, and 11,550 tons of steel. Therefore, it is necessary to design a new type of wind power foundation to meet the bearing capacity requirements of the wind turbine tower. , and can reduce the amount of steel and concrete required for wind farm construction to achieve the purpose of saving resources and energy. In recent years, with the acceleration of urban new construction, reconstruction and expansion projects, the resulting construction waste is increasing day by day. However, the comprehensive utilization rate of construction waste in my country is very low at present, and construction waste in many areas is used by construction units without any treatment. Ship to the suburbs or the countryside. The construction waste crushing machine processes the construction waste by stacking in the open air or simple landfill. Most of the construction waste is transported by non-enclosed transport vehicles. During the transportation process, it will inevitably cause problems such as garbage scattering, dust and ash flying. , Seriously affecting the appearance and landscape of the city.

Common construction waste such as sand, bricks and stones at home and abroad are mainly processed by making recycled cement and landfilling. In addition, foreign countries also control the output of construction waste by taxing projects that generate construction waste. For the increasing amount of construction waste in our country, it is urgent to adopt a more effective and economical solution, so that it can be used for harmless treatment and as a reusable construction resource.

Utility model content

The technical problem to be solved by the utility model is: in order to solve the existing problems of the existing wind power foundations such as the large amount of building materials and the need for a large construction site, the purpose of the utility model is to provide a new type of wind power tower foundation filled with construction waste, It is required to have a simple structure, be able to utilize construction waste, save building materials, and at the same time be able to meet the bearing capacity requirements of the foundation of a large wind turbine tower.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A new type of wind power tower foundation filled with construction waste includes a base plate, pipe piles, pipe pile caps, column piers and a tower foundation ring. The middle and lower parts of the pipe pile are filled with layered and compacted construction waste, and the upper part of the construction waste is a plain concrete layer formed by pouring. The upper end surface of the plain concrete layer is lower than the upper port of the pipe pile. The pipe pile cap is located above the plain concrete layer and is fixedly connected with the plain concrete layer. The column pier is installed above the pipe pile cap. The column pier is connected to the pipe pile cap through anchoring steel bars. The tower foundation The lower portion of the ring fits vertically in the center hole of the pier.

Preferably, the pier is a reinforced concrete truncated cone, and the central hole of the pier is coaxial with the truncated cone.

Preferably, there are multiple anchoring steel bars, and the anchoring steel bars surround the foundation ring of the tower to form an inner and outer two-layer annular distribution, and the lower ends of all the anchoring steel bars extend to the lower end surface of the plain concrete layer.

Preferably, the anchoring steel bar is concentric with two layers of rings formed around the base ring of the tower.

Preferably, the base plate, pipe piles, pipe pile caps and column piers are all reinforced concrete structures.

By adopting the aforementioned technical scheme, the beneficial technical effects of the utility model are: the basic structure of the new wind power tower is simple, on the one hand, it can reduce the amount of steel bars and concrete used in construction, save resources and energy, and reduce construction costs. On the other hand, the treatment method of construction waste is optimized, and it is converted into construction resources for reuse, so as to achieve the purpose of waste reuse. Under the premise of reducing the construction cost of the wind power tower foundation, it can still meet the bearing capacity requirements of the large wind turbine tower foundation.

Description of drawings

Fig. 1 is a schematic diagram of the structural principle of the new wind power tower foundation filled with construction waste of the present invention.

Fig. 2 is a top view of the new wind power tower foundation of the utility model filled with construction waste.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

Combining Figures 1 and 2, the new wind power tower foundation filled with construction waste includes a base plate 1, pipe piles 2, pipe pile caps 3, column piers 4 and tower foundation ring 5, and the pipe piles 2 are arranged on the base plate 1 Above, the lower end of the pipe pile 2 is fixedly connected with the bottom plate 1 as a whole. The middle and lower parts of the pipe pile 2 are filled with layered and compacted construction waste 6. The upper part of the construction waste 6 is a plain concrete layer 7 formed by pouring. The upper end surface of the plain concrete layer 7 is lower than the upper port of the pipe pile 2. . The pipe pile cap 3 is located above the plain concrete layer 7, and is fixedly connected with the plain concrete layer 7. The column pier 4 is installed above the pipe pile cap 3, and the column pier 4 is a reinforced concrete conical Platform, the central hole of column pier 4 is coaxial with conical frustum.

The column pier 4 is connected to the pipe pile cap 3 through the anchoring steel bars 8. There are multiple anchoring steel bars 8, and the anchoring steel bars 8 are distributed in a ring around the center hole in two layers, the two layers of rings formed by the anchoring bars 8 are concentric around the center hole. The lower ends of all the anchor bars 8 extend to the lower end surface of the plain concrete layer 7 . The bottom of the tower foundation ring 5 is vertically installed in the center hole of the pier 4, and the tower foundation ring 5, the center hole of the pier 4 and the pipe pile 2 are all coaxial.

Excavate the foundation pit according to the design requirements, pour a 10cm thick reinforced concrete bottom slab 1 at the bottom of the excavated foundation pit, and use C20 concrete as the concrete for the poured bottom slab 1. After the bottom plate is poured, the construction of the pipe pile 2 is carried out. First, the steel cage of the pipe pile 2 is bound, and then the formwork of the pipe pile 2 is installed, and C40 concrete is poured. The wall thickness of the pipe pile 2 is required to reach 40cm. After removing the formwork of the pipe pile 2, fill the interior of the pipe pile 2 with construction waste 6. It is required that the block volume of the construction waste 6 should not be too large to avoid large gaps after filling. After the predetermined filling height is completed, the filled The construction waste 6 is compacted in layers.

Arrange anchoring steel bars 8, pour C40 into the pipe pile 2 to form a plain concrete layer 7, and the upper end surface of the plain concrete layer is 20cm away from the upper port of the pipe pile 2. Carry out the reinforcement cage binding of pipe pile cap 3 on the upper end face of plain concrete layer 7, and pour C40 concrete, thickness is 40cm, the lower end of anchoring steel bar 8 is anchored in plain concrete layer 7 and pipe pile cap 3. The tower foundation ring 5 is fixedly installed on the pipe pile cap 3, and the steel cage of the pier 4 is bound around the foundation ring 5 of the tower. After the formwork of the pier 4 is installed, the concrete pouring of the pier 4 is carried out. Use C40 concrete. Finally, backfill the spoil generated when excavating the foundation pit, fill the backfill soil 9 around the pier 4 and compact it, and install the fan tower and subsequent equipment after the concrete reaches the design strength.

The basic structure of the new wind power tower is simple. On the one hand, it can reduce the amount of steel and concrete used in construction, save resources and energy, and reduce construction costs. On the other hand, it optimizes the treatment of construction waste and converts it into construction resources for recycling. Utilize to achieve the purpose of waste reuse. It can meet the bearing capacity requirements of large wind turbine tower foundations.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples, and changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present utility model are also acceptable. Should belong to the protection scope of the present utility model.

Claims (5)

1. fill the novel wind power tower foundation of building waste, comprise base plate, pile tube, pile tube cushion cap, stub and tower barrel base ring, it is characterized in that, described pile tube is arranged on base plate, and the lower end of pile tube is fixedly connected with integral with base plate; Middle part in pile tube and the under-filled building waste having compaction in layers, the top of described building waste is the plain concrete layer of building formation, and the upper surface of plain concrete layer is lower than the upper port of pile tube; Described pile tube cushion cap is seated in the top of plain concrete layer, and be fixedly connected with integral with plain concrete layer, stub is installed on the top of pile tube cushion cap, and stub is connected with pile tube cushion cap by anchor bar, and the lower vertical of tower barrel base ring is arranged in the centre bore of stub.

2. the novel wind power tower foundation of filling building waste according to claim 1, is characterized in that, described stub is the frustum of a cone of steel concrete, and the centre bore of stub is coaxial with the frustum of a cone.

3. the novel wind power tower foundation of filling building waste according to claim 1, it is characterized in that, described anchor bar has many, and anchor bar forms inside and outside two-layer annular spread around tower barrel base ring, and the lower end of all anchor bars extends to the lower surface of plain concrete layer.

4. the novel wind power tower foundation of filling building waste according to claim 1, is characterized in that, the two-layer annulus that described anchor bar is formed around tower barrel base ring is concentric.

5. the novel wind power tower foundation of filling building waste according to claim 1, is characterized in that, described base plate, pile tube, pile tube cushion cap and stub are built by steel concrete and formed.