Coastal mud flat photovoltaic foundation pile overall reinforcing system

By setting rigid inclined and horizontal cross-supports between photovoltaic foundation piles in the coastal mudflat, the problem of large horizontal displacement of foundation piles under storm surge is solved, the overall safety and stability of photovoltaic foundation piles are improved, and the normal operation of the power station is ensured.

CN222275594UActive Publication Date: 2024-12-31POWERCHINA CHONGQING ENG CO LTD +1
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Patent Information

Application Number
CN202421072715.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2024-12-31
Estimated Expiration
2034-05-16

AI Technical Summary

Technical Problem

The photovoltaic foundation piles of Binhai mudflats are difficult to meet the design requirements under the action of storm surge, especially when they are subjected to cyclic wave loads, which leads to large horizontal displacement of the foundation piles, or even dip, affecting the normal operation of the power station.

Method used

Design a comprehensive reinforcement system for photovoltaic foundation piles in the coastal mudflat. By setting rigid inclined support and horizontal support between the foundation piles, including column inclined support and row inclined support, the horizontal displacement of foundation piles with larger loads is limited, and the foundation piles are improved. Overall performance and stability.

Benefits of technology

By setting rigid inclined support and horizontal cross support between photovoltaic foundation piles, the overall safety and stability of photovoltaic foundation piles during the storm surge are significantly improved, ensuring the normal operation of the Binhai mudflat photovoltaic power station.

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Abstract

The utility model discloses a coastal mud flat photovoltaic foundation pile overall reinforcing system which comprises a plurality of foundation pile unit modules arranged between an open sea and an inland, and each foundation pile unit module comprises a plurality of foundation piles distributed in a matrix mode. Column inclined supports are continuously arranged between column-direction foundation piles, vertically pointing to the open sea direction, in each foundation pile unit module, and row inclined supports and row transverse supports are arranged between transverse foundation piles, parallel to the open sea direction, on the two sides in each foundation pile unit module; the overall safety and stability of the photovoltaic foundation pile under the action of storm surge can be greatly improved, the horizontal displacement of the foundation pile with large load is limited, and normal work of a coastal beach photovoltaic power station is ensured.
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Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to an integral reinforcement system for photovoltaic piles on coastal tidal flats. Background Art

[0002] For photovoltaic power generation on coastal tidal flats, the foundation piles for photovoltaic tidal flats are generally φ400mm-500mm prestressed pipe piles, with a depth of 5-8m in the ground. The top of the pipe piles is generally higher than the peak elevation of the designed maximum wave load. Therefore, the photovoltaic panels and brackets avoid the wave loads caused by storm surges and only bear the wind load. The center of the photovoltaic panel is about 8-10m above the ground. The pipe piles bear wave loads, and the larger the pile diameter, the greater the wave load they bear. In general design, static loads are considered, and the bearing capacity of vertical and horizontal loads can meet the design requirements. It is difficult to meet the design requirements in terms of pile displacement and bending moment resistance, especially when the storm surge lasts for a long time. The tidal flat wave load caused by the storm surge is a cyclic dynamic load with an action period of about 9 to 12 seconds and a wavelength of about 70 to 90 meters. The spacing of the photovoltaic piles is about 5.2m×6.5m. The photovoltaic piles in the coastal tidal flat are subject to cyclic wave dynamic loads. The cyclic wave dynamic loads may cause the performance of the silty soft soil around and above the piles to continue to deteriorate, causing the piles to have a larger horizontal displacement or even tilt, thereby causing the coastal tidal flat photovoltaic power station to fail to operate normally. Utility Model Content

[0003] In order to solve the above problems, the present application provides a coastal beach photovoltaic pile integral reinforcement system, which can greatly improve the overall safety and stability of photovoltaic piles under the action of storm surges and limit the horizontal displacement of piles with heavy loads. The technical solution is as follows:

[0004] The present application provides an integral reinforcement system for photovoltaic piles on coastal tidal flats, comprising a plurality of pile unit modules arranged between the open sea and the inland, each of the pile unit modules comprising a plurality of piles distributed in a matrix, wherein row oblique supports are continuously arranged between column-wise piles pointing vertically from the inland toward the open sea in each of the pile unit modules, and row oblique supports and row transverse supports are arranged between the transverse piles on both sides parallel to the open sea in each of the pile unit modules.

[0005] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, row transverse supports are continuously arranged between the rows of piles pointing vertically inland toward the open sea in the pile unit module near the open sea, and row diagonal supports are continuously arranged between some rows of transverse piles parallel to the open sea direction in the pile unit module near the open sea.

[0006] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, a photovoltaic assembly is provided at the top of the pile, and the photovoltaic assembly includes a photovoltaic panel, a photovoltaic bracket and a clamp, the photovoltaic panel is fixedly connected to the photovoltaic bracket, and the photovoltaic bracket is fixed to the top of the pile through the clamp.

[0007] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, the column cross support and the row cross support include a horizontal rod body, the horizontal rod body is connected between two adjacent piles, and the two ends of the horizontal rod body are respectively connected to the top of the two adjacent piles through fixing parts.

[0008] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, the column inclined support and the row inclined support respectively include two cross-arranged inclined rod bodies, the inclined rod bodies are connected between two adjacent piles, and one end of the inclined rod body is connected to the top of one side pile through a fixing member, and the other end is connected to the other side pile near the mud surface through a fixing member.

[0009] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, rows of oblique supports and rows of transverse supports are arranged between three transverse piles on both sides parallel to the open sea in each pile unit module.

[0010] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, rows of inclined supports are continuously arranged between three rows of transverse piles in a pile unit module close to the open sea in a direction parallel to the open sea.

[0011] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, the pile unit module includes 6 rows of transverse piles and 25 columns of axial piles, and in the pile unit module near the open sea, three rows of transverse piles close to the open sea are arranged with rows of inclined supports every five in a row along a direction parallel to the open sea.

[0012] For example, in the coastal tidal flat photovoltaic pile integral reinforcement system provided in one embodiment, three pile unit modules are arranged between the open sea and the inland, vertically pointing from the inland toward the open sea.

[0013] The beneficial effects brought about by an overall reinforcement system for photovoltaic piles on coastal tidal flats provided by some embodiments of the present application are as follows: the present application can limit the displacement of the pile tops and improve the overall performance between the piles by arranging rigid inclined supports between the photovoltaic piles, and can further improve the overall performance between the piles by arranging rigid horizontal cross supports between the photovoltaic piles. The overall reinforcement system for photovoltaic piles on coastal tidal flats of the present application can greatly improve the overall safety and stability of the photovoltaic piles under the action of storm surges, limit the horizontal displacement of piles with larger loads, and ensure the normal operation of photovoltaic power stations on coastal tidal flats. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the layout of the overall reinforcement system of the coastal beach photovoltaic pile foundation of this application;

[0016] Figure 2 This is a schematic diagram of the support layout of any row of photovoltaic piles in the coastal beach photovoltaic piles overall reinforcement system of this application;

[0017] Figure 3 This is a schematic diagram of the support arrangement of three rows of photovoltaic pile reinforcement rows close to the open sea side in the pile unit module close to the open sea of ​​the coastal beach photovoltaic pile overall reinforcement system of this application;

[0018] Figure 4 This is a schematic diagram of the layout of the reinforcement rows of three rows of photovoltaic piles close to the inland side of the pile unit module near the open sea and other pile unit modules in the coastal tidal flat photovoltaic pile integral reinforcement system of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] The present application provides a coastal beach photovoltaic pile integral reinforcement system, such as Figure 1-4 As shown, it includes several pile unit modules 6 arranged between the open sea and the inland, each of the pile unit modules 6 includes several piles 1 distributed in a matrix, and in each of the pile unit modules 6, row oblique supports 21 are continuously arranged between the column-wise piles 1 pointing vertically from the inland to the open sea, and in each of the pile unit modules 6, row oblique supports 31 and row horizontal supports 32 are arranged between the transverse piles 1 on both sides parallel to the open sea direction.

[0022] The coastal tidal flat photovoltaic pile integral reinforcement system of the present application is specifically described by taking an example in which three pile unit modules 6 are arranged between the open sea and the inland along the inland vertically pointing toward the open sea, and each pile unit module 6 includes 6 rows of horizontal piles 1 and 25 columns of column piles 1. It should be noted that the number of pile unit modules 6 of the present application and the number of piles in each pile unit module 6 are specifically set according to the actual coastal tidal flat site, and the present application is not limited to the above-mentioned quantity setting.

[0023] According to the above embodiments, the direction of wave movement on the coastal tidal flat is mainly from the outer sea of ​​the tidal flat to the inland of the tidal flat or from the inland of the tidal flat to the outer sea of ​​the tidal flat, and mainly moves along the direction of the arrangement of the pile columns. Therefore, the present application can ensure that at least 2 of every 6 piles have very small wave loads by continuously arranging column inclined supports 21 between the column-oriented piles 1 pointing vertically inland to the open sea in each of the pile unit modules 6, thereby limiting the horizontal displacement of the piles with larger loads.

[0024] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1-4 As shown, row transverse supports 22 are continuously arranged between the rows of piles 1 pointing vertically from inland to the sea in the pile unit module 6 near the sea, and row diagonal supports 31 are continuously arranged between some rows of transverse piles 1 parallel to the sea in the pile unit module 6 near the sea.

[0025] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1-4 As shown, a photovoltaic assembly 5 is provided at the top of the foundation pile 1. The photovoltaic assembly 5 includes a photovoltaic panel 51, a photovoltaic bracket 52 and a clamp 53. The photovoltaic panel 51 is fixedly connected to the photovoltaic bracket 52. The photovoltaic bracket 52 is fixed to the top of the foundation pile 1 through the clamp 53.

[0026] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1-4As shown, the column cross support 22 and the row cross support 32 include a horizontal rod body, the horizontal rod body is connected between two adjacent foundation piles 1, and the two ends of the horizontal rod body are respectively connected to the top of the two adjacent foundation piles 1 through a fixing member 4.

[0027] Specifically, the fixing member includes a top fixing member 41 and a bottom fixing member 42 , and both ends of the column cross support 22 and the row cross support 32 are connected to the tops of two adjacent foundation piles 1 through the top fixing member 41 .

[0028] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1-4 As shown, the column inclined support 21 and the row inclined support 31 respectively include two cross-arranged inclined rod bodies, the inclined rod bodies are connected between two adjacent foundation piles 1, and one end of the inclined rod body is connected to the top of one side of the foundation pile 1 through a fixing member 4, and the other end is connected to the other side of the foundation pile 1 near the mud surface through a fixing member 4.

[0029] Specifically, the fixings include a top fixing 41 and a bottom fixing 42. One end of the column inclined support 21 and the row inclined support 31 is connected to the top of two adjacent foundation piles 1 through the top fixing 41, and the other end is fixedly connected to the two adjacent foundation piles 1 near the mud surface through the bottom fixing 42.

[0030] According to the above embodiment, all column supports 2 and row supports 3 are connected to the piles 1 via fixing members 4, which can ensure the firmness of the connection between the piles 1 and the supports, and avoid failure of the supports due to damage to the fixing members.

[0031] The supporting material can be reinforced concrete structure or steel. The rigid support shall be prefabricated or assembled in advance according to different specifications before entering the site.

[0032] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1 , 3 As shown in FIG. 4 , in each of the pile unit modules 6 , rows of oblique supports 31 and rows of transverse supports 32 are arranged between three transverse piles 1 on both sides parallel to the open sea direction.

[0033] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1 , 3 As shown, in the pile unit module 6 close to the open sea, rows of inclined supports 31 are continuously arranged between three rows of transverse piles 1 close to the open sea in a direction parallel to the open sea.

[0034] For example, in the coastal beach photovoltaic pile integral reinforcement system provided in one embodiment, Figure 1 , 3As shown, in the pile unit module 6 close to the open sea, rows of inclined supports 31 are continuously arranged every five piles in three rows of transverse piles 1 close to the open sea in a direction parallel to the open sea.

[0035] According to the above embodiment, the direction of movement of waves on the coastal tidal flat may also move from the outer sea of ​​the tidal flat to the inland of the tidal flat at a certain angle or from the inland of the tidal flat to the outer sea of ​​the tidal flat at a certain angle. Therefore, by continuously arranging rows of inclined supports 31 for every five piles of three rows of transverse piles 1 close to the open sea in the pile unit module 6 near the open sea in a direction parallel to the open sea, it can be ensured that at least one pile out of every five piles has a very small wave load, thereby limiting the horizontal displacement of the piles with a larger load.

[0036] The coastal tidal flat photovoltaic pile integral reinforcement system of the present application has, for the row-oriented piles 1, prefabricated rigid row diagonal supports 21 and rigid horizontal row transverse supports 22 are continuously arranged between the 6 piles close to the open sea, and only prefabricated rigid row diagonal supports 21 are arranged between the row-oriented piles 1 arranged backwards, and no support is provided between the row-oriented piles 1 of two adjacent pile unit modules 6; for the row-oriented piles 1, prefabricated rigid row diagonal supports 31 are continuously arranged between every 5 piles of the 3 rows of piles close to the open sea, and for the row-oriented piles of the 4th row and thereafter, prefabricated rigid row diagonal supports 31 are arranged only between the 3 piles on both sides, and horizontal row transverse supports 32 are arranged between the 3 piles on both sides of all row-oriented piles, and no support is provided between other piles. The present application greatly improves the overall safety and stability of photovoltaic piles during storm surges by arranging rigid column supports 2 and rigid row supports 3 between the matrix-distributed piles 1. The direction of wave movement on coastal tidal flats is mainly from the outer sea of ​​the tidal flats to the inland of the tidal flats or from the inland of the tidal flats to the outer sea of ​​the tidal flats, and mainly moves along the direction of the arrangement of the piles. Therefore, the present application continuously arranges column oblique supports 21 between the column-oriented piles 1 pointing vertically inland to the outer sea in each of the pile unit modules 6 to ensure that at least one of every six piles has a The wave load of the two piles is very small, thus limiting the horizontal displacement of the piles with larger loads; the direction of wave movement on the coastal tidal flat may also move from the outer sea of ​​the tidal flat to the inland of the tidal flat at a certain angle or from the inland of the tidal flat to the outer sea of ​​the tidal flat at a certain angle. Therefore, by continuously arranging the row of inclined supports 31 for every five piles in the three rows of transverse piles 1 parallel to the direction of the outer sea in the pile unit module 6 near the outer sea, it can be ensured that at least one of every five piles has a very small wave load, thereby limiting the horizontal displacement of the piles with larger loads. When there is no support, the displacement of the top of the pile 1 is much greater than the displacement of the pile 1 at the mud surface. The main function of the rigid inclined support is to limit the displacement of the pile top and improve the overall performance between the piles. The main function of the rigid horizontal support is to further improve the overall performance between the piles. It can be seen from the force calculation analysis that the influence of the horizontal support on the horizontal displacement is smaller than that of the inclined support. Therefore, the present application cancels the horizontal support after the sixth pile in the column direction and cancels the horizontal support after the third pile on both sides.

[0037] Although the implementation scheme of the present application has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes, and it can be fully applicable to various fields suitable for the present application. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present application is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A coastal beach photovoltaic pile integral reinforcement system, characterized in that: It comprises a plurality of pile unit modules arranged between the open sea and the inland, each of the pile unit modules comprises a plurality of piles distributed in a matrix, in each of the pile unit modules, row oblique supports are continuously arranged between the column piles pointing vertically from the inland to the open sea, and in each of the pile unit modules, row oblique supports and row transverse supports are arranged between the transverse piles on both sides parallel to the open sea.

2. According to claim 1, the coastal beach photovoltaic pile integral reinforcement system is characterized in that: In the pile unit module near the open sea, row cross supports are continuously arranged between the rows of piles pointing vertically inland towards the open sea, and row diagonal supports are continuously arranged between some rows of transverse piles parallel to the open sea direction in the pile unit module near the open sea.

3. According to claim 2, the coastal beach photovoltaic pile integral reinforcement system is characterized in that: A photovoltaic assembly is provided at the top of the foundation pile. The photovoltaic assembly comprises a photovoltaic panel, a photovoltaic bracket and a clamp. The photovoltaic panel is fixedly connected to the photovoltaic bracket. The photovoltaic bracket is fixed to the top of the foundation pile through the clamp.

4. According to claim 3, the coastal beach photovoltaic pile integral reinforcement system is characterized in that: The column cross supports and the row cross supports include a horizontal rod body, the horizontal rod body is connected between two adjacent foundation piles, and two ends of the horizontal rod body are respectively connected to the tops of the two adjacent foundation piles through fixing members.

5. According to claim 4, the coastal beach photovoltaic pile integral reinforcement system is characterized in that: The column inclined support and the row inclined support respectively include two cross-arranged inclined rod bodies, the inclined rod bodies are connected between two adjacent foundation piles, and one end of the inclined rod body is connected to the top of one side of the foundation pile through a fixing piece, and the other end is connected to the other side of the foundation pile near the mud surface through a fixing piece.

6. According to claim 5, the coastal beach photovoltaic pile integral reinforcement system is characterized in that: In each of the pile unit modules, rows of oblique supports and rows of transverse supports are arranged between three transverse piles on both sides parallel to the open sea direction.

7. The coastal beach photovoltaic pile integral reinforcement system according to claim 6 is characterized in that: In the pile unit module close to the open sea, rows of inclined supports are continuously arranged between three rows of transverse piles parallel to the open sea direction and close to the open sea.

8. The coastal beach photovoltaic pile integral reinforcement system according to claim 7 is characterized in that: The pile unit module comprises 6 rows of transverse piles and 25 columns of axial piles. In the pile unit module close to the open sea, three rows of transverse piles parallel to the open sea and close to the open sea are continuously arranged with row diagonal supports for every five piles.

9. The coastal beach photovoltaic pile integral reinforcement system according to claim 8, characterized in that: Three of the pile unit modules are arranged between the open sea and the inland, vertically pointing from the inland toward the open sea.