CN215857816U

CN215857816U - Non-pile-driving type photovoltaic panel support foundation structure suitable for muddy field

Info

Publication number: CN215857816U
Application number: CN202121677420.5U
Authority: CN
Inventors: 闫俊义; 林琳; 刘建平
Original assignee: China Three Gorges Renewables Group Co Ltd
Current assignee: China Three Gorges Renewables Group Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-02-18
Anticipated expiration: 2031-07-22

Abstract

A non-pile driving type photovoltaic panel support foundation structure suitable for a muddy field comprises a shallow foundation prefabricated part, wherein the shallow foundation prefabricated part comprises horizontal buried pipes and vertical pipe piles, a plurality of horizontal buried pipes are transversely, vertically or/and crossly connected to form a plane supporting frame, and a plurality of water permeable holes are formed in the horizontal buried pipes; vertical tubular pile and plane braced frame are connected, and vertical tubular pile top is used for installing the photovoltaic support. The foundation structure has the advantages of safety, reliability, economy, reasonability, convenience in construction and the like, can effectively reduce the operation time of silt sites such as mudflats, and can replace the prefabricated reinforced concrete pile foundation which is most commonly used when a photovoltaic power station is built in the existing silt site, but has the defects of high construction cost of components, high construction difficulty, long construction period and easiness in being influenced by construction environment of a intertidal zone.

Description

Non-pile-driving type photovoltaic panel support foundation structure suitable for muddy field

Technical Field

The utility model belongs to the field of photovoltaic panel support foundations, and particularly relates to a non-pile-driving photovoltaic panel support foundation structure suitable for a muddy field.

Background

The construction of offshore beach photovoltaic power stations is one of the important directions for the development of future photovoltaic power stations. The offshore beach area has the characteristics of weak foundation bearing capacity, shallow underground water level, strong environmental corrosivity, large tide fluctuation influence, remarkable wind load and the like, so that the problems that the photovoltaic power station constructed in the offshore beach area faces the high customization cost of the photovoltaic panel support foundation and the construction and installation cost and the like are solved. Therefore, the design, construction and installation cost of the photovoltaic panel support foundation is a controllability factor restricting the development of the beach photovoltaic power station.

For example, chinese patent CN104420477A describes a foundation structure and a construction method of a shoal photovoltaic power station support, the foundation is a prefabricated reinforced concrete pile, a mechanical pile is used for sinking, a connector is embedded in the top of the foundation, and a photovoltaic support is connected with the foundation through the pre-connector. The foundation type has the problems of long construction period, high construction difficulty, high possibility of being influenced by the construction environment of a intertidal zone and the like, and the economical efficiency and the construction convenience are greatly influenced.

Chinese patent CN107794902B describes a construction method of a beach photovoltaic power station, which comprises the steps of leveling beach plots in different areas, leading holes in the leveled plots, inserting small-section steel into the holes to cast a support foundation in situ, and enabling the length specification of the support foundation to be controllable, but the beach leveling engineering quantity is large, and the economy is poor.

Disclosure of Invention

In view of the technical problems in the background art, the non-pile type photovoltaic panel support foundation structure suitable for the muddy field has the advantages of safety, reliability, economy, reasonability, convenience in construction and the like, can effectively reduce the operation time of the muddy field such as a mudflat and the like, and can replace the prefabricated reinforced concrete pile foundation which is most commonly used for building a photovoltaic power station in the muddy field at present but has high component manufacturing cost, large construction difficulty, long construction period and high possibility of being influenced by the construction environment of a intertidal zone.

In order to solve the technical problems, the utility model adopts the following technical scheme to realize:

a non-pile driving type photovoltaic panel support foundation structure suitable for a muddy field comprises a shallow foundation prefabricated part, wherein the shallow foundation prefabricated part comprises horizontal buried pipes and vertical pipe piles, a plurality of horizontal buried pipes are transversely, vertically or/and crossly connected to form a plane supporting frame, and a plurality of water permeable holes are formed in the horizontal buried pipes; vertical tubular pile and plane braced frame are connected, and vertical tubular pile top is used for installing the photovoltaic support.

In the preferred scheme, vertical tubular pile quantity be many, many vertical tubular piles are connected with plane braced frame is perpendicular.

In a preferred scheme, the plurality of water permeable holes are uniformly distributed.

In a preferred scheme, the horizontal buried pipe is of a one-section or uniform multi-section structure.

In the preferred scheme, the horizontal buried pipe and the vertical pipe pile are round pipes, square pipes, trapezoidal pipes or elliptical pipes.

In the preferred scheme, the horizontal buried pipe and the vertical pipe pile are made of corrosion-resistant synthetic materials.

In the preferred scheme, the photovoltaic support include with the front column and the back stand that vertical tubular pile is connected, be equipped with the bracing on the back stand.

In the preferred scheme, the front upright post and the rear upright post are connected with the vertical tubular pile through a pre-connecting piece.

In a preferred scheme, the pre-connecting piece is an embedded steel plate or an embedded bolt.

This patent can reach following beneficial effect:

1. in the prior art, deep foundations such as prefabricated reinforced concrete piles or prestressed pipe piles are generally adopted, and the foundation type has the problems of high construction difficulty, long installation time, high manufacturing and installation cost and the like in a muddy field. The shallow buried foundation made of the synthetic material has the advantages of small material consumption, low manufacturing cost, good corrosion resistance effect, convenient and quick construction and the like, and can meet the structural bearing requirement.

2. In the prior art, due to the fact that the heights of all support foundation points in the muddy field are different, the support foundation with the corresponding height needs to be customized according to the height point of each place, and the top of the support foundation can reach the unified control height. The length specification of the support foundation and the elevation of the vertical tubular pile top are easy to control, and the manufacturing, construction and installation costs of the support foundation can be reduced by using smaller filling amount.

3. In the prior art, a mechanical pile sinking construction method is generally adopted. The utility model adopts shallow-buried foundation, only needs to dig a ditch with a certain depth, and then carries out backfilling. The method has the advantages of small earth excavation amount, short construction period, small construction difficulty and difficult influence of construction environment of the intertidal zone.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic view of the installation of the present invention.

In the figure: the prefabricated part comprises a shallow buried foundation prefabricated part 1, a horizontal buried pipe 1-1, a vertical pipe pile 1-2, a water permeable hole 1-3, a support 2, a front upright post 2-1, a rear upright post 2-2, an inclined strut 2-3 and a pre-connecting piece 3.

Detailed Description

The preferable scheme is as shown in figure 1, a non-pile driving type photovoltaic panel support foundation structure suitable for muddy fields comprises a shallow buried foundation prefabricated part 1, and a photovoltaic support 2 is arranged on the shallow buried foundation prefabricated part 1. The shallow foundation prefabricated part 1 comprises a horizontal buried pipe 1-1 and a vertical pipe pile 1-2 which are arranged under the ground, the arrangement form of the horizontal buried pipe 1-1 is horizontal, vertical or crossed, the horizontal buried pipe 1-1 is of a one-section or even multi-section structure, and water permeable holes 1-3 are uniformly distributed in the horizontal buried pipe 1-1, so that the water permeable holes are beneficial to permeating water and reducing upward floating force. The heights of the tops of the vertical tubular piles 1-2 are equal in principle;

the photovoltaic support 2 comprises a front upright post 2-1, a rear upright post 2-2 and an inclined strut 2-3, wherein the front upright post and the rear upright post are distributed on different vertical pipes 1-2; the top of the vertical tubular pile 1-2 is embedded with a pre-connecting piece 3, and the photovoltaic support 2 is connected with the foundation 1 through the pre-connecting piece 3. The sections of a horizontal buried pipe 1-1 and a vertical pipe pile 1-2 of the shallow buried foundation prefabricated part 1 are circular pipes, square pipes, trapezoidal pipes or elliptical pipes, and the shallow buried foundation prefabricated part 1 is made of a corrosion-resistant synthetic material; the front and rear upright posts are arranged in two upright posts or four upright posts, and the sections of the front and rear upright posts are circular tubes, square tubes, trapezoidal tubes and elliptical tubes; the pre-connecting piece 3 is an embedded steel plate or an embedded bolt and is respectively connected with the front and rear upright posts of the photovoltaic support.

The working principle is as follows:

the method has the advantages that the silt beach field has the characteristics of weak foundation bearing capacity, shallow underground water level, strong environmental corrosivity, large tide fluctuation influence, obvious wind load and the like, the traditional beach photovoltaic power station foundation mostly adopts deep foundation types such as prefabricated reinforced concrete piles or prestressed pipe piles, the foundation type has the problems of long construction period, large construction difficulty, easy influence of construction environment of intertidal zones and the like, the economy and the construction convenience are greatly influenced, and the rapid development of construction photovoltaic in the beach area is restricted.

The shallow foundation does not need to adopt mechanical pile sinking measures. Because the photovoltaic support mainly bears the transverse load, the thick silt layer in the mud flat place is difficult to provide bearing capacity, and the traditional pile type structure needs great burial depth to resist uplift force. The foundation only needs to dig a ditch with a certain depth, meanwhile, the shallow foundation prefabricated member 1 is placed in the ditch, and then clay or sandy soil body with bearing capacity is backfilled, so that enough uplift resistance can be provided under a small burying depth.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a non-formula photovoltaic panel support foundation structure that piles suitable for silt matter place, its characterized in that: the shallow buried foundation prefabricated part (1) comprises horizontal buried pipes (1-1) and vertical pipe piles (1-2), a plurality of horizontal buried pipes (1-1) are transversely, vertically or/and crossly connected to form a plane supporting frame, and a plurality of water permeable holes (1-3) are formed in the horizontal buried pipes (1-1); the vertical tubular pile (1-2) is connected with the plane supporting frame, and the top of the vertical tubular pile (1-2) is used for installing the photovoltaic support (2).

2. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: the number of the vertical tubular piles (1-2) is multiple, and the multiple vertical tubular piles (1-2) are vertically connected with the plane supporting frame.

3. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: a plurality of water permeable holes (1-3) are evenly distributed.

4. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: the horizontal buried pipe (1-1) is of a one-section or even multi-section structure.

5. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: the horizontal buried pipe (1-1) and the vertical pipe pile (1-2) are round pipes, square pipes, trapezoidal pipes or elliptical pipes.

6. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: the horizontal buried pipe (1-1) and the vertical pipe pile (1-2) are made of corrosion-resistant synthetic materials.

7. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 1, wherein: the photovoltaic support (2) comprises a front upright post (2-1) and a rear upright post (2-2) which are connected with the vertical tubular pile (1-2), and the rear upright post (2-2) is provided with an inclined strut (2-3).

8. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 7, wherein: the front upright post (2-1) and the rear upright post (2-2) are connected with the vertical tubular pile (1-2) through a pre-connecting piece (3).

9. The non-piled photovoltaic panel support foundation structure suitable for use in muddy fields as defined in claim 8, wherein: the pre-connecting piece (3) is an embedded steel plate or an embedded bolt.