Inclined pile inhaul cable type photovoltaic support structure and system suitable for muddy soft soil

Abstract

The utility model provides an inclined pile stay rope type photovoltaic support structure and system suitable for muddy soft soil, comprising a plurality of photovoltaic support units arranged in a row, each photovoltaic support unit comprises a fixed support and a tubular pile, the fixed support is fixed on the upper part of the tubular pile, the tubular piles at two end parts of each row are connected with inclined piles, and the inclined piles are connected with the photovoltaic support units. The tubular piles and the inclined piles are used for being fixed in muddy soft soil; the pile head positions of the pipe piles of the adjacent photovoltaic support structures are connected through steel inhaul cables. By arranging the pile top steel inhaul cables and the end inclined piles, a cantilever type single-row pile structure is converted into a space stress structure, when a horizontal load is transmitted, the end inclined piles serving as horizontal displacement built-in points do not deform, other piles horizontally deform, and therefore the steel inhaul cables are tensioned, and the horizontal displacement built-in points are not deformed. The horizontal force is transmitted through the steel inhaul cable and converted into the vertical force of the inclined pile, so that the horizontal load on the middle PHC pipe pile is effectively reduced, and the problem that the horizontal resistance is difficult to meet under the muddy soft soil geological condition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and in particular to an inclined pile cable-type photovoltaic support structure and system suitable for silty soft soil. Background Art

[0002] The statements in this section merely provide background technology related to the present invention and do not necessarily constitute prior art.

[0003] As land resources become increasingly scarce, photovoltaic power generation is moving from land to tidal flats. Existing tidal flat photovoltaics still use the classic single-row pile structure solution. However, due to the special hydrogeological environment of tidal flat photovoltaics, existing tidal flat projects face the following challenges:

[0004] The wind pressure on the nearshore tidal flats is relatively large, and the pile foundations of tidal flat projects need to withstand wave loads, which require them to withstand greater horizontal loads than land-based photovoltaic structures. However, the surface geology of tidal flat projects is usually silty soil, which is loose and has poor horizontal resistance. Therefore, compared with land-based photovoltaics, tidal flat photovoltaics face the dilemma of large horizontal loads and poor horizontal resistance of the soil. Engineering designs usually require larger pile diameters and longer pile lengths, resulting in excessively high project costs and many projects cannot be implemented. Utility Model Content

[0005] In order to address the deficiencies in the prior art, the utility model provides a slant pile cable type photovoltaic support structure and system suitable for silty soft soil. By arranging steel cables at the top of the piles and slant piles at the ends, the cantilever single-row pile structure is converted into a spatial force-bearing structure. When horizontal loads are transmitted, the slant piles at the ends do not deform as horizontal displacement embedding points, while other PHC piles undergo horizontal deformation. Therefore, the steel cables are tightened, and the horizontal force is transmitted through the steel cables and converted into vertical force of the slant piles, thereby effectively reducing the horizontal load on the middle PHC piles, and solving the problem that horizontal resistance is difficult to meet under silty soft soil geological conditions.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides an inclined pile-cable photovoltaic support structure suitable for silty soft soil.

[0008] A slanted pile cable-type photovoltaic support structure suitable for silty soft soil, comprising a plurality of photovoltaic support units arranged in a row, each of the photovoltaic support units comprising a fixed support and a pipe pile, the fixed support is fixed to the upper part of the pipe pile, the pipe piles at both ends of each row are connected with slanted piles, the pipe piles and the slanted piles are used to be fixed in the silty soft soil;

[0009] The pile heads of the pipe piles of adjacent photovoltaic support structures are connected by steel cables.

[0010] As a further limitation of the first aspect of the utility model, the inclined pile and the pipe pile are fixedly connected by a clamp.

[0011] As a further limitation of the first aspect of the present utility model, the pipe pile is a PHC pipe pile.

[0012] As a further limitation of the first aspect of the utility model, the fixed bracket includes: an inclined beam, a front inclined brace, and a rear inclined brace. The inclined beam is used to fix the photovoltaic component, one end of the front inclined brace is connected to the inclined beam, and the other end of the front inclined brace is connected to the pipe pile through a first connecting member, one end of the rear inclined brace is connected to the inclined beam, and the other end of the rear inclined brace is connected to the pipe pile through a first connecting member.

[0013] As a further limitation of the first aspect of the utility model, the fixed bracket also includes a front column and a rear column, one end of the front column is connected to the inclined beam, and the other end of the front column is connected to the pipe pile through a second connecting member; one end of the rear column is connected to the inclined beam, and the other end of the rear column is connected to the pipe pile through a second connecting member.

[0014] As a further limitation of the first aspect of the utility model, the other end of the front column is connected to the pipe pile through a clamp, and the other end of the rear column is connected to the pipe pile through a clamp.

[0015] As a further limitation of the first aspect of the present utility model, the central axes of the front column and the rear column are parallel to the central axis of the pipe pile.

[0016] As a further limitation of the first aspect of the utility model, a plurality of purlins are arranged transversely on the inclined beam according to the installation width of the photovoltaic module, and the purlins are used to connect the photovoltaic module to bear the weight of the photovoltaic module.

[0017] As a further limitation of the first aspect of the utility model, the second connecting member is a clamp fixed around the pipe pile, the front column is connected to the first connecting member and the second connecting member respectively, and the rear column is connected to the first connecting member and the second connecting member respectively.

[0018] In a second aspect, the utility model provides an inclined pile-cable photovoltaic support system suitable for silty soft soil, comprising a plurality of parallel rows of the inclined pile-cable photovoltaic support structure suitable for silty soft soil described in the first aspect of the utility model.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model transforms the cantilever single-row pile structure into a spatial force-bearing structure by arranging steel cables at the pile top and inclined piles at the end. When the horizontal load is transmitted, the inclined piles at the end as the horizontal displacement embedding points do not deform, and other PHC piles deform horizontally. Therefore, the steel cables are tightened, and the horizontal force is transmitted through the steel cables and converted into the vertical force of the inclined piles, thereby effectively reducing the horizontal load on the middle PHC piles, and solving the problem that the horizontal resistance is difficult to meet under the silty soft soil geological conditions.

[0021] 2. The utility model can effectively reduce the horizontal load of all PHC piles in the middle by only setting steel cables at the pile top and inclined piles at the end, thereby achieving the purpose of optimizing the pile diameter and mud penetration depth of the PHC piles in the middle, greatly reducing the engineering quantity and engineering cost; the utility model has a better force transmission route, converting horizontal force into vertical force, effectively avoiding the disadvantage of poor horizontal resistance of silty soft soil.

[0022] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 This is a vertical view of a single-row pile scheme provided in Example 1 of the utility model;

[0025] Figure 2 A plan view of a photovoltaic array with a single row of piles provided in Example 1 of the utility model;

[0026] Figure 3 A three-dimensional schematic diagram of the inclined pile cable photovoltaic support structure provided in Example 1 of the utility model;

[0027] Figure 4 A schematic diagram of the horizontal force transmission path under the southward load provided in Example 1 of the utility model;

[0028] Among them, 1- inclined beam; 2, front inclined brace; 3, rear inclined brace; 4, front column; 5, rear column; 6, PHC pipe pile; 7-1, first inclined pile; 7-2, second inclined pile; 8, steel cable. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] Embodiment 1:

[0033] In this implementation, a tilted pile cable photovoltaic support structure suitable for silty soft soil is proposed, including a plurality of photovoltaic support units arranged in a row, each of which includes a fixed support and a PHC pile 6, such as Figure 1 and Figure 2 shown.

[0034] In this implementation, the fixed bracket adopts transverse purlins, which are arranged longitudinally as a whole. The fixed bracket includes an inclined beam 1, a front diagonal brace 2, a rear diagonal brace 3, a front column 4 and a rear column 5. On the inclined beam 1 of the fixed bracket, the purlins are arranged transversely according to the installation width of the photovoltaic module. The purlins are used to connect the photovoltaic module and bear the weight of the photovoltaic module. The front column 4 and the rear column 5 are connected to the PHC pile 6 through a clamp (i.e., the second connecting member) to transfer the load of the fixed bracket to the PHC pile 6. The front diagonal brace 2 and the rear diagonal brace 3 are connected to the PHC pile 6 through a clamp (i.e., the first connecting member); in this implementation, optionally, the front column 4 and the rear column 5 are also connected to the first connecting member.

[0035] Based on the traditional single-row pile structure scheme, Figure 3 As shown, the present implementation proposes to set a steel cable 8 at the pile head to connect the PHC piles 6 (i.e., adjacent PHC piles 6 are connected by the steel cable 8) to transfer horizontal loads, and drive a first inclined pile 7-1 at the pile top of the leftmost PHC pile 6 of the single-row pile structure, and drive a second inclined pile 7-2 at the pile top of the rightmost PHC pile 6 of the single-row pile structure as horizontal displacement embedding points, and the first inclined pile 7-1 and the second inclined pile 7-2 are respectively connected to the ends of the corresponding PHC piles 6 through hoops.

[0036] The inclined pile and cable-type photovoltaic support structure in the present implementation can transform the cantilever single-row pile structure into a spatial structure. The horizontal force is directly transmitted and converted into a vertical force on the end inclined pile through the steel cable 8, thereby effectively reducing the horizontal load on the middle PHC pipe pile 6 and solving the problem of the horizontal resistance being difficult to meet under silty soft soil geological conditions.

[0037] The specific force transmission is as follows Figure 4As shown, when southerly wind and wave force come, the middle PHC pile 6 bends, while the PHC pile 6 at the right end is used as a horizontal displacement embedding point around the second inclined pile 7-2 and basically does not deform. Therefore, the steel cable 8 is tightened, and the horizontal force is transmitted to the second inclined pile 7-2 on the right end through the steel cable 8 and converted into vertical force. The horizontal force on the middle PHC pile 6 is effectively reduced.

[0038] Embodiment 2:

[0039] The present implementation method provides an inclined pile-cable photovoltaic support system suitable for silty soft soil, comprising a plurality of parallel rows of the inclined pile-cable photovoltaic support structure suitable for silty soft soil described in Example 1 of the present utility model.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tilted pile cable photovoltaic support structure suitable for silty soft soil, characterized in that: It comprises a plurality of photovoltaic support units arranged in a row, each of the photovoltaic support units comprises a fixed support and a pipe pile, the fixed support is fixed on the upper part of the pipe pile, the pipe piles at both ends of each row are connected with inclined piles, and the pipe piles and the inclined piles are used to be fixed in silty soft soil; The pile heads of the pipe piles of adjacent photovoltaic support structures are connected by steel cables.

2. The inclined pile cable photovoltaic support structure suitable for silty soft soil according to claim 1, characterized in that: The inclined pile is fixedly connected to the pipe pile via a clamp.

3. The inclined pile cable photovoltaic support structure suitable for silty soft soil according to claim 1 or 2, characterized in that: The pipe pile is a PHC pipe pile.

4. The inclined pile cable type photovoltaic support structure suitable for silty soft soil according to claim 1, characterized in that: The fixed bracket includes: an inclined beam, a front inclined brace, and a rear inclined brace. The inclined beam is used to fix the photovoltaic module. One end of the front inclined brace is connected to the inclined beam, and the other end of the front inclined brace is connected to the pipe pile through a first connecting piece. One end of the rear inclined brace is connected to the inclined beam, and the other end of the rear inclined brace is connected to the pipe pile through a first connecting piece.

5. The inclined pile cable photovoltaic support structure suitable for silty soft soil as claimed in claim 4, characterized in that: The fixed bracket also includes a front column and a rear column, one end of the front column is connected to the inclined beam, and the other end of the front column is connected to the pipe pile through a second connecting piece; one end of the rear column is connected to the inclined beam, and the other end of the rear column is connected to the pipe pile through a second connecting piece.

6. The inclined pile cable photovoltaic support structure suitable for silty soft soil according to claim 5, characterized in that: The other end of the front column is connected to the pipe pile through a clamp, and the other end of the rear column is connected to the pipe pile through a clamp.

7. The inclined pile cable type photovoltaic support structure suitable for silty soft soil as claimed in claim 5 or 6, characterized in that: The central axes of the front column and the rear column are parallel to the central axis of the pipe pile.

8. The inclined pile cable photovoltaic support structure suitable for silty soft soil according to claim 4, characterized in that: A plurality of purlins are arranged transversely on the inclined beam according to the installation width of the photovoltaic modules, and the purlins are used to connect the photovoltaic modules to bear the weight of the photovoltaic modules.

9. The inclined pile cable type photovoltaic support structure suitable for silty soft soil according to claim 5, characterized in that: The second connecting member is a clamp fixed around the pipe pile, the front column is connected to the first connecting member and the second connecting member respectively, and the rear column is connected to the first connecting member and the second connecting member respectively.

10. An inclined pile cable photovoltaic support system suitable for silty soft soil, characterized in that: The invention discloses a photovoltaic support structure suitable for muddy soft soil, comprising a plurality of parallel rows of inclined pile-cable-type photovoltaic support structures as described in any one of claims 1 to 9.

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