Fixed pile foundation type offshore photovoltaic construction method

Abstract

The present disclosure provides a fixed pile foundation type offshore photovoltaic flow construction method, and relates to the technical field of offshore photovoltaics. The construction method comprises: dividing an offshore photovoltaic area into a plurality of construction areas arranged side by side, each construction area being adjacent to the sea on at least one side, and different construction areas being adjacent to each other; different construction areas are synchronously subjected to flow construction, the construction direction of a construction area being from the center of the construction area to the periphery of the construction area, and the construction directions of adjacent construction areas being different. The construction method of the present disclosure can improve construction efficiency and reduce construction difficulty.

Description

Technical Field

[0001] This disclosure relates to the field of offshore photovoltaic technology, and more specifically, to a fixed pile foundation offshore photovoltaic continuous-flow construction method. Background Technology

[0002] Currently, wind power dominates the offshore power generation sector. However, with the continuous exploration and deepening of renewable energy utilization, offshore photovoltaics is gradually emerging as a new and promising power generation method. However, applying photovoltaic technology to the marine environment is not easy. The marine environment poses severe challenges to the construction process, resulting in significant construction difficulties and low efficiency.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This disclosure provides a fixed pile foundation type offshore photovoltaic waterborne construction method, which can improve construction efficiency and reduce construction difficulty.

[0005] According to one aspect of this disclosure, a method for constructing a fixed-pile-foundation offshore photovoltaic system is provided, comprising:

[0006] The offshore photovoltaic area is divided into multiple construction zones arranged side by side, each construction zone having at least one side facing the sea, and the different construction zones are adjacent to each other;

[0007] Different construction areas are carried out simultaneously in a continuous flow, and the construction direction of each construction area is from the center of the construction area to the periphery of the construction area, and the construction directions of adjacent construction areas are different.

[0008] In one exemplary embodiment of this disclosure, the plurality of construction areas include a first construction area, a second construction area, and a third construction area. The length of the seaward edge line in the first construction area is greater than the length of the non-seaward edge line in the first construction area; the length of the seaward edge line in the second construction area is less than the length of the non-seaward edge line in the first construction area; and the length of the seaward edge line in the third construction area is greater than the length of the non-seaward edge line in the first construction area.

[0009] In one exemplary embodiment of this disclosure, the areas of the first construction area, the second construction area, and the third construction area are all different.

[0010] In one exemplary embodiment of this disclosure, the construction method further includes:

[0011] The photovoltaic support components are assembled in the land area to form a photovoltaic bracket; the land area is connected to the first construction area via a waterway;

[0012] The photovoltaic support structure will be transported to the first construction area via the waterway.

[0013] The photovoltaic support structure is transported to the third construction area along the coastal edge of the first construction area.

[0014] In one exemplary embodiment of this disclosure, the seaward edge line of the first construction area is located on the side of the first construction area closer to the land area.

[0015] In an exemplary embodiment of this disclosure, the first construction area includes a first inner wire, a second inner wire, and a first edge line. The first inner wire is connected to the second inner wire, and the first inner wire and the second inner wire are not collinear. The first edge line connects the end of the first inner wire away from the second inner wire and the end of the second inner wire away from the first inner wire.

[0016] In an exemplary embodiment of this disclosure, the second construction area includes a third inner wire, a fourth inner wire, a fifth inner wire, a sixth inner wire, and a second edge line that are connected end to end in sequence. The third inner wire is distributed parallel to and adjacent to the first inner wire, and a first channel is formed between the first inner wire and the third inner wire. The fourth inner wire is distributed parallel to and adjacent to the second inner wire, and a second channel is formed between the fourth inner wire and the second inner wire.

[0017] In an exemplary embodiment of this disclosure, the third construction zone includes a third edge line and a seventh inner wire, an eighth inner wire, and a ninth inner wire connected in sequence. The seventh inner wire is parallel to and adjacent to the sixth inner wire, and a third channel is formed between the seventh inner wire and the sixth inner wire. The eighth inner wire is parallel to and adjacent to the fifth inner wire, and a fourth channel is formed between the fifth inner wire and the eighth inner wire. The ninth inner wire is collinear with the fourth inner wire, and the ninth inner wire is parallel to and adjacent to the second inner wire, and a fifth channel is formed between the second inner wire and the ninth inner wire. The third edge line connects the seventh inner wire and the ninth inner wire.

[0018] In one exemplary embodiment of this disclosure, the sequential construction includes at least equipment installation, photovoltaic bracket installation, cable laying, and photovoltaic panel installation.

[0019] In one exemplary embodiment of this disclosure, the different construction areas are simultaneously subjected to continuous construction, including:

[0020] The equipment is installed in the first construction area, and the equipment installation includes setting up a substation and laying power collection lines;

[0021] The photovoltaic panels are transported to the second construction area, and their performance parameters are checked in the second construction area.

[0022] The photovoltaic brackets are installed in the third construction area, and the cables are laid.

[0023] After the photovoltaic support and the cable are laid in the third construction area, the photovoltaic panels are installed on the photovoltaic support.

[0024] This disclosed fixed-pile-foundation offshore photovoltaic (PV) continuous-flow construction method subdivides the PV area into multiple parallel and adjacent construction zones, each with at least one side facing the sea. This facilitates material transportation and reduces the difficulty of material handling. The clear division of construction zones also facilitates efficient management and monitoring. Employing a synchronous continuous-flow construction strategy, with each construction zone advancing outwards from the center and adjacent zones having different construction directions, not only reduces overlapping operations between construction teams and avoids construction conflicts (e.g., ship-machine collisions), but also improves construction efficiency and reduces safety risks. Furthermore, zoned construction makes large-scale projects easier to manage, allowing each zone to independently plan its construction process, reducing the complexity of construction organization. In addition, since each construction zone has at least one side facing the sea, it provides a natural logistics channel for the entry and exit of large equipment and materials. The seaside layout also facilitates rapid response and evacuation in emergencies, further enhancing the safety of the construction site.

[0025] In addition, the simultaneous construction strategy ensured that all areas progressed in sync, avoiding overall delays caused by localized setbacks. The different construction strategies facilitated flexible resource allocation and optimization, allowing personnel and machinery to move efficiently between different areas and preventing resource idleness.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0028] Figure 1 This is a flowchart of a fixed pile foundation offshore photovoltaic water-flow construction method according to one embodiment of the present disclosure.

[0029] Figure 2 This is a schematic diagram of the photovoltaic region in an embodiment of this disclosure.

[0030] Figure 3 This is a flowchart of step S120 in this embodiment.

[0031] Figure 4 This is a flowchart of a fixed pile foundation offshore photovoltaic water-flow construction method according to another embodiment of this disclosure.

[0032] In the diagram: 100, Photovoltaic Zone; 1, First Construction Zone; 11, First Inner Connection; 12, Second Inner Connection; 13, First Edge Line; 2, Second Construction Zone; 21, Third Inner Connection; 22, Fourth Inner Connection; 23, Fifth Inner Connection; 24, Sixth Inner Connection; 25, Second Edge Line; 3, Third Construction Zone; 31, Seventh Inner Connection; 32, Eighth Inner Connection; 33, Ninth Inner Connection; 34, Third Edge Line; 4, Waterway; 5, Land Area; 10, First Passage; 20, Second Passage; 30, Third Passage; 40, Fourth Passage; 50, Fifth Passage. Detailed Implementation

[0033] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0034] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0035] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and that other elements / components / etc. may exist in addition to those listed. The terms “first,” “second,”…“ninth” are used only as markers and are not a limitation on the number of objects.

[0036] Offshore photovoltaic (PV) projects, due to their unique marine environment, place extremely high demands on construction. How to conduct construction efficiently and safely has become a critical issue that urgently needs to be addressed. Especially in the construction of fixed-pile-foundation offshore PV (i.e., PV panels supported above the sea surface by pile foundations and PV brackets), the operation and management of the vessel and machinery are particularly important, and safety hazards such as collisions must be avoided. Given the complexity and challenges of offshore PV construction, we urgently need a new construction method to ensure a smooth and unimpeded construction process.

[0037] Based on this, the present disclosure provides a fixed pile foundation type offshore photovoltaic system construction method, such as... Figure 1 As shown, the construction method includes steps S11 and S120, wherein:

[0038] Step S110: Divide the offshore photovoltaic area into multiple construction areas arranged side by side, each construction area having at least one side facing the sea, and different construction areas being adjacent to each other;

[0039] In step S120, different construction areas are carried out simultaneously in a continuous flow construction manner. The construction direction of each construction area is from the center of the construction area to the periphery of the construction area, and the construction directions of adjacent construction areas are different.

[0040] like Figure 2 As shown, multiple construction areas include a first construction area 1, a second construction area 2, and a third construction area 3. The length of the seaward edge in the first construction area 1 is greater than the length of the non-seaward edge in the first construction area 1; the length of the seaward edge in the second construction area 2 is less than the length of the non-seaward edge in the first construction area 1; and the length of the seaward edge in the third construction area 3 is greater than the length of the non-seaward edge in the first construction area 1. The areas of the first construction area 1, the second construction area 2, and the third construction area 3 are all different.

[0041] In some embodiments of this disclosure, the flow-line construction method may further include:

[0042] Step S130: Assemble the photovoltaic support components in the land area 5 to form a photovoltaic bracket; the land area 5 is connected to the first construction area 1 through the waterway 4;

[0043] Step S140: Transport the photovoltaic support to the first construction area 1 via the waterway 4;

[0044] Step S150: Transport the photovoltaic bracket to the third construction area 3 along the seaward edge line of the first construction area 1.

[0045] The seaside edge of the first construction zone 1 is located on the side of the first construction zone 1 that is closer to the land area 5.

[0046] This disclosed fixed-pile-foundation offshore photovoltaic (PV) construction method divides the PV zone 100 into multiple parallel and adjacent construction areas (including a first construction area 1, a second construction area 2, and a third construction area 3), ensuring that each construction area has at least one side facing the sea. This facilitates material transportation, reduces the difficulty of material handling, and also facilitates rapid response and evacuation in emergencies, resulting in higher construction safety. Simultaneously, it clearly defines the boundaries of the construction areas, facilitating efficient management and monitoring. Furthermore, the first construction area 1 has a relatively long seaward edge, which facilitates connection to the land area 5 via the waterway 4, providing convenience for the transportation of PV support structures.

[0047] By adopting a synchronous flow construction strategy, each construction area advances in an orderly manner from the center outwards, and the construction directions of adjacent construction areas are different. This can reduce cross-operations between construction teams, fundamentally avoid construction conflicts, such as safety hazards like ship-machine collisions, thereby improving construction efficiency and reducing safety risks.

[0048] Meanwhile, the zoned construction strategy makes large-scale photovoltaic projects easier to manage. Each area can independently plan its construction process based on actual conditions, simplifying the complexity of construction organization. Furthermore, the synchronous construction strategy ensures that all construction areas can proceed in sync, effectively avoiding overall progress delays caused by localized setbacks. The strategy of constructing in different directions in adjacent areas promotes flexible scheduling and optimized allocation of construction resources, enabling efficient movement of personnel and machinery between different areas, avoiding resource idleness and waste, and further improving construction efficiency and economic benefits.

[0049] The following provides a detailed description of each step and specific details of the fixed pile foundation type offshore photovoltaic water-based construction method in this disclosure embodiment:

[0050] like Figure 1 As shown, in step S110, the offshore photovoltaic area 100 is divided into multiple construction areas distributed side by side, each construction area is adjacent to the sea on at least one side, and different construction areas are adjacent to each other.

[0051] The offshore photovoltaic zone 100 can be determined based on the geographical features of the sea area, water depth, tidal conditions, wind and wave conditions, and the layout requirements of the photovoltaic array. The photovoltaic zone 100 can be rectangular, polygonal, or irregular in shape; no special restrictions are imposed here. The area of ​​the photovoltaic zone 100 can be 5 km². 2 ~8km 2 No specific limits are made on the area of ​​photovoltaic zone 100 here. The closest distance between photovoltaic zone 100 and the coastline can be 2.0 km, while the farthest distance can be 6.5 km. The water depth of photovoltaic zone 100 is approximately 8 m to 12 m.

[0052] Please continue reading Figure 2As shown, the photovoltaic area 100 can be divided into multiple parallel construction zones, each with at least one side facing the sea. This design utilizes the ocean as a natural logistics channel, facilitating the transportation and installation of large equipment (such as crane vessels or piling vessels), materials, and photovoltaic supports, while effectively reducing the costs and risks of land transportation. The construction zone facing the sea often serves as the logistics hub for the entire project, undertaking the important tasks of connecting with the land area 5 and distributing materials; at the same time, it also ensures that ships and machinery can be smoothly removed after construction is completed.

[0053] In one exemplary embodiment of this disclosure, different construction areas are adjacent to each other to ensure that each construction area can operate independently while also cooperating with each other. Buffer zones or shared passages can be set up between adjacent construction areas to facilitate the flexible transfer of construction teams, equipment, and materials between different areas, while avoiding construction conflicts and resource competition. This not only helps to improve construction efficiency but also enhances the overall coordination and controllability of the project.

[0054] In one exemplary embodiment of this disclosure, please continue to refer to Figure 2 As shown, the multiple construction areas may include a first construction area 1, a second construction area 2, and a third construction area 3, wherein:

[0055] Construction Zone 1 serves as the logistics hub and starting point for the entire offshore photovoltaic project. Its coastal edge is relatively long; for example, the length of the coastal edge in Construction Zone 1 is greater than the length of the non-coastal edge in other areas. This allows large equipment, photovoltaic supports, and construction materials to be transported directly to the construction site by sea. Simultaneously, the longer coastal edge provides ample working space for the construction teams, facilitating the rapid deployment and efficient progress of construction activities.

[0056] Please continue reading Figure 2 As shown, compared to the first construction zone 1, the seaside edge of the second construction zone 2 is relatively shorter. For example, the length of the seaside edge in the second construction zone 2 is shorter than the length of the non-seaside edge in the first construction zone 1, and the seaside edge in the second construction zone 2 connects with the seaside edge in the first construction zone 1. The second construction zone 2 is mainly used for the final stage of project construction. Its shorter seaside edge reduces direct contact with the outside world, minimizing external interference during construction and allowing the construction team to concentrate on completing the final finishing work (e.g., photovoltaic panel installation). Meanwhile, the non-seaside edge provides a relatively enclosed working environment for the construction team, helping to improve construction efficiency and safety.

[0057] Please continue reading Figure 2As shown, the third construction area 3, which is adjacent to the second construction area 2, also has a relatively long seaside edge. For example, the length of the seaside edge in the third construction area 3 is greater than the length of the non-seaside edge in the first construction area 1. Furthermore, the seaside edge in the third construction area 3 connects with the seaside edges in both the first and second construction areas. This layout not only maintains the continuity of the logistics channel, enabling materials to flow quickly between the two construction areas, but also further enhances the flexibility and coordination of construction activities in the third construction area 3.

[0058] In some embodiments of this disclosure, the areas of the first construction area 1, the second construction area 2, and the third construction area 3 can be set according to different operational requirements. That is, when the first construction area 1, the second construction area 2, and the third construction area 3 undertake different operational tasks, their areas are different. For example, the first construction area 1 can be used to set up a substation and lay power collection lines; the second construction area 2 can be used to transport photovoltaic panels and perform performance parameter testing on the photovoltaic panels; and the third construction area 3 can be used to install photovoltaic brackets and lay cables.

[0059] In one exemplary embodiment of this disclosure, please continue to refer to Figure 2 As shown, the first construction area 1 includes a first inner connection 11, a second inner connection 12, and a first edge line 13. Both the first inner connection 11 and the second inner connection 12 can be straight lines. One end of the first inner connection 11 is connected to one end of the second inner connection 12, and the first inner connection 11 and the second inner connection 12 are not collinear; for example, the first inner connection 11 and the second inner connection 12 can be perpendicular to each other. The first edge line 13 can be a broken line, connecting the end of the first inner connection 11 away from the second inner connection 12 and the end of the second inner connection 12 away from the first inner connection 11. The first inner connection 11, the second inner connection 12, and the first edge line 13 together form the first construction area 1. The first edge line 13 is distributed along the coast, and a portion of the first inner connection 11 and the second inner connection 12 is adjacent to the second construction area 2. In some embodiments of this disclosure, the angle between the first inner connection 11 and the second inner connection 12 can be defined as an interior angle, and the first edge line 13 connects to the side away from the interior angle.

[0060] Please continue reading Figure 2As shown, the second construction area 2 is formed by connecting the third inner wire 21, the fourth inner wire 22, the fifth inner wire 23, the sixth inner wire 24, and the second edge line 25 sequentially. The third inner wire 21, the fourth inner wire 22, the fifth inner wire 23, the sixth inner wire 24, and the second edge line 25 can all be straight lines, and adjacent lines are not collinear. The third inner wire 21 is parallel to and adjacent to the first inner wire 11, forming a first passage 10, which can be used for logistics transportation or personnel passage during construction. The fourth inner wire 22 can also be parallel to and adjacent to the second inner wire 12, and the length of the fourth inner wire 22 can be less than the length of the second inner wire 12. The interval between the fourth inner wire 22 and the second inner wire 12 forms a second passage 20, which can also be used for logistics transportation or personnel passage within the construction area.

[0061] In an exemplary embodiment of this disclosure, when the first inner wire 11 is perpendicular to the second inner wire 12, the third inner wire 21 may also be perpendicular to the fourth inner wire 22. Simultaneously, the fifth inner wire 23 may be perpendicular to the fourth inner wire 22, and the fifth inner wire 23 is located on the side of the fourth inner wire 22 away from the second inner wire 12. The sixth inner wire 24 may be perpendicular to the fifth inner wire 23, that is, the sixth inner wire 24 may be distributed parallel to the fourth inner wire 22. The second edge line 25 connects the third inner wire 21 and the sixth inner wire 24, and the second edge line 25 is distributed along the coast. Meanwhile, both the third inner wire 21 and the fourth inner wire 22 are adjacent to the first construction area 1, and both the fifth inner wire 23 and the sixth inner wire 24 are adjacent to the third construction area 3.

[0062] The second edge line 25 serves as the closed boundary of the entire second construction area 2. It can be a straight line, a broken line, or a curve, as long as it can adapt to the terrain and operational requirements of the construction site. The second edge line 25 connects the end of the sixth inner wire 24 that is far from the fifth inner wire 23 and the end of the third inner wire 21 that is far from the fourth inner wire 22, thereby forming a complete and functionally defined second construction area 2 together with the other inner wires.

[0063] In some embodiments of this disclosure, in order to optimize construction efficiency and management, the width and position of the first passage 10 and the second passage 20, as well as the protective measures on both sides of the passage, can be adjusted according to the actual construction needs. For example, safety barriers, signs or lighting facilities can be added to ensure traffic safety and smooth operation in the construction area.

[0064] Please continue reading Figure 2As shown, the third construction zone 3 includes a third edge line 34 and sequentially connected seventh inner wiring 31, eighth inner wiring 32, and ninth inner wiring 33. That is, the third edge line 34 and the closely connected seventh inner wiring 31, eighth inner wiring 32, and ninth inner wiring 33 together enclose the third construction zone 3. The seventh inner wiring 31 and the sixth inner wiring 24 are parallel and adjacent, with a third passage 30 between them. The third passage 30 serves as a material transport and personnel flow route during construction, ensuring efficient logistics and safe passage for personnel. The width of the third passage 30 can be matched to the needs of construction activities; no specific limit is placed on the width of the third passage 30 here. The eighth inner wiring 32 and the fifth inner wiring 23 are parallel and adjacent, with a fourth passage 40 between them. The fourth passage 40 also serves as a traffic management function within the construction area, facilitating the alleviation of potential traffic congestion during construction. To further enhance the safety and efficiency of the passageway, necessary traffic signs, safety fences, and lighting systems can be installed on both sides of the passageway to ensure smooth and unimpeded construction activities.

[0065] The ninth inner connection 33 and the fourth inner connection 22 are set in the same line to improve space utilization. The ninth inner connection 33 can be distributed in parallel and adjacent to the second inner connection 12. The fifth channel 50 is located between the second inner connection 12 and the ninth inner connection 33. The establishment of the fifth channel 50 provides another important path for lateral communication within the construction area, enhancing the connectivity and flexibility within the construction area.

[0066] The third edge line 34 is distributed along the coast. As the outer boundary of the third construction zone 3, its shape can be flexibly adjusted according to the specific terrain, geological conditions, and construction needs of the construction site. Whether it is a straight line, a broken line, or a curve, its purpose is to ensure the safe enclosure and efficient management of the construction area. The third edge line 34 connects the seventh inner line 31 and the ninth inner line 33 (for example, the third edge line 34 connects the end of the seventh inner line 31 away from the eighth inner line 32 and the end of the ninth inner line 33 away from the eighth inner line 32), and works in conjunction with each inner line to jointly enclose the third construction zone 3.

[0067] Furthermore, to further optimize the construction process and improve management efficiency, the width, location, and protective measures of the passageways within the third construction zone 3 can be dynamically adjusted according to the construction progress and actual conditions. For example, temporary roads can be added, passageway layouts can be adjusted, and safety protection measures can be strengthened within the third construction zone 3 to ensure that construction activities proceed smoothly in a safe and efficient environment.

[0068] It should be noted that the first edge line 13 (i.e., the seaside edge line in the first construction area 1), the second edge line 25 (i.e., the seaside edge line in the second construction area 2), and the third edge line 34 (i.e., the seaside edge line in the third construction area 3) can jointly enclose the photovoltaic area 100 disclosed herein.

[0069] like Figure 1 As shown, in step S120, different construction areas are carried out in a continuous flow construction process. The construction direction of the construction area is from the center of the construction area to the periphery of the construction area, and the construction directions of adjacent construction areas are different.

[0070] Simultaneous flow-line construction can be carried out in different construction areas. For example, flow-line construction can be carried out simultaneously in construction area 1, construction area 2, and construction area 3. During this process, each construction area can advance from the center outwards. Because the construction directions of adjacent construction areas are different, it not only reduces cross-operations between construction teams and avoids construction conflicts (such as collisions between ships and machinery), but also improves construction efficiency and reduces safety risks. At the same time, zoned construction makes large-scale projects easier to manage, as each area can independently plan its construction process, reducing the complexity of construction organization. In addition, the simultaneous construction strategy ensures that all areas advance in sync, avoiding overall progress delays caused by local delays. The construction strategy with different directions promotes flexible scheduling and optimized allocation of resources, allowing personnel and machinery to move efficiently between different areas and avoiding resource idleness.

[0071] In some embodiments of this disclosure, the sequential construction may include at least equipment installation, photovoltaic support installation, cable laying, and photovoltaic panel installation. Simultaneous sequential construction in different construction areas (i.e., step S120) may include steps S210-S240, such as... Figure 3 As shown, where:

[0072] Step S210: Install the equipment in the first construction area. The equipment installation includes setting up a substation and laying power collection lines.

[0073] The substation's basic structural components can be transported to the designated location. Due to the unique marine environment, floating cranes or offshore cranes are required for precise lifting, while divers assist in securing and inspecting the underwater foundation components. After the substation's foundation components are secured, the main equipment of the substation is installed. This main equipment may include transformers, switchgear, control systems, etc. It should be noted that this equipment must undergo anti-corrosion treatment to adapt to the marine environment.

[0074] Power collection lines can be laid using vessels and specialized offshore cable laying equipment. The lines must be laid along a pre-determined seabed or surface path, with buoys or seabed markers used to indicate the route. Cable traction and securing devices can be employed during the laying process to ensure the stability and safety of the cables in the marine environment.

[0075] Step S220: Transport the photovoltaic panel to the second construction area and check the performance parameters of the photovoltaic panel in the second construction area.

[0076] Photovoltaic panels can be transported from land area 5 or the warehouse to the second construction area 2 by transport ship. Subsequently, staff can be organized to check the performance parameters of the photovoltaic panels and record the test results. Performance parameters may include the power, voltage, current, efficiency, and waterproof performance of the photovoltaic panels. Photovoltaic panels that do not meet the requirements must be marked and isolated promptly to prevent them from entering subsequent installation stages.

[0077] Step S230: Install the photovoltaic bracket in the third construction area and lay the cable.

[0078] The installation location and layout of the photovoltaic (PV) mounting system can be determined based on the design drawings and actual site conditions. During installation, specialized marine construction equipment and tools, such as offshore cranes, screwdrivers, and wrenches, must be used, and strict installation specifications and operating procedures must be followed. After installation, a stability check must be conducted to ensure the PV mounting system can withstand the weight of the photovoltaic panels and the challenges of the marine environment.

[0079] After the photovoltaic support structure is installed, cable laying can begin. Cables must be laid along the support structure or a pre-designed path and secured using cable clamps or fixing devices. During the laying process, cable joints and junction boxes must be installed, and the insulation and conductivity of the cables must be ensured.

[0080] Step S240: After the photovoltaic support and the cable are laid in the third construction area, the photovoltaic panel is installed on the photovoltaic support.

[0081] After the photovoltaic (PV) mounting systems and cables are laid, the installation of the PV panels begins. For example, the installation sequence and location of the PV panels can be determined based on the design drawings and the performance parameters of the panels. Then, an offshore crane or hoisting equipment is used to lift the PV panels one by one onto the mounting systems, and they are secured using screwdrivers, wrenches, and other tools. During installation, it is essential to ensure a secure and reliable connection between the PV panels and the mounting systems, and to adjust the angle and orientation of the PV panels to maximize the utilization of solar energy.

[0082] After the photovoltaic panels are installed, electrical connections and commissioning are required. For example, the photovoltaic panels can be connected to cables, and necessary protection devices and monitoring systems can be installed. Finally, a comprehensive inspection and testing of the entire photovoltaic system is conducted to ensure that the system can operate normally and meet design requirements.

[0083] In one exemplary embodiment of this disclosure, such as Figure 4 As shown, the fixed pile foundation type offshore photovoltaic water-based construction method of this disclosure may further include steps S130-S150, wherein:

[0084] Step S130: Assemble the photovoltaic support components in the land area to form a photovoltaic bracket; the land area is connected to the first construction area via a waterway.

[0085] An assembly site can be selected on the coast, in a land area 5 that is close to the photovoltaic zone 100 and has convenient transportation. The land area is flat and unobstructed, which facilitates the entry and exit of large equipment and materials. At the same time, considering the convenience of subsequent transportation, the location of the land area 5 can be as close as possible to the entrance of the waterway 4.

[0086] Photovoltaic support components (e.g., support grids, support beams, support rods, fasteners, and connectors) can be assembled in land area 5 to form a photovoltaic support system for supporting photovoltaic panels. Land area 5 can be planned with clear logistics channels, assembly areas, storage areas, and temporary facility areas to ensure that each functional area does not interfere with each other and that the process is smooth. Materials such as support grids, support beams, support rods, fasteners, and connectors required for photovoltaic support components can be transported to land area 5 in advance and stored according to their classification. The support grids, support beams, support rods, fasteners, and connectors are assembled according to the design drawings to form the photovoltaic support system.

[0087] It should be noted that the assembly of photovoltaic support components in land area 5 can be carried out simultaneously with the sequential construction processes in construction areas 1, 2, and 3, achieving efficient utilization of construction resources and rapid progress. Effective communication and coordination mechanisms between land area 5 and the other construction areas ensure smooth construction and timely resolution of problems.

[0088] Step S140: Transport the photovoltaic support to the first construction area via the waterway.

[0089] The seaward edge line (i.e., the first edge line 13) of the first construction area 1 is located on the side of the first construction area 1 closest to the land area 5. That is, the first edge line 13 is close to the boundary of the ocean. The photovoltaic support structure assembled in the land area 5 can be transported to the first edge line 13 of the first construction area 1 via the waterway 4. The waterway 4 can be a straight waterway 4. A straight waterway 4 can minimize the transportation distance and improve the logistics speed; moreover, the straight design helps to simplify the navigation route, reduce navigation difficulty, and thus improve the safety of transportation.

[0090] Step S150: Transport the photovoltaic bracket to the third construction area along the seaward edge of the first construction area.

[0091] After reaching the first construction zone 1, the photovoltaic bracket can be transported to the third construction zone 3 along the first edge line 13.

[0092] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A fixed pile foundation type offshore photovoltaic system construction method, characterized in that, include: The offshore photovoltaic area is divided into multiple construction zones arranged side by side, each construction zone having at least one side facing the sea, and the different construction zones are adjacent to each other; Different construction areas are carried out simultaneously in a continuous flow, and the construction direction of the construction area is from the center of the construction area to the periphery of the construction area, and the construction directions of adjacent construction areas are different; The multiple construction areas include a first construction area, a second construction area, and a third construction area. The length of the seaward edge line in the first construction area is greater than the length of the non-seaward edge line in the first construction area; the length of the seaward edge line in the second construction area is less than the length of the non-seaward edge line in the first construction area; and the length of the seaward edge line in the third construction area is greater than the length of the non-seaward edge line in the first construction area. The different construction areas are carried out simultaneously in a continuous flow construction manner, including: Equipment installation is carried out in the first construction area, including setting up a substation and laying power collection lines; Transport photovoltaic panels to the second construction area and inspect the performance parameters of the photovoltaic panels in the second construction area; Photovoltaic brackets were installed and cables were laid in the third construction area; After the photovoltaic support and the cable are laid in the third construction area, the photovoltaic panels are installed on the photovoltaic support.

2. The construction method according to claim 1, characterized in that, The areas of the first construction area, the second construction area, and the third construction area are all different.

3. The construction method according to claim 1, characterized in that, The construction method also includes: The photovoltaic support components are assembled in the land area to form a photovoltaic bracket; the land area is connected to the first construction area via a waterway; The photovoltaic support structure will be transported to the first construction area via the waterway. The photovoltaic support structure is transported to the third construction area along the coastal edge of the first construction area.

4. The construction method according to claim 3, characterized in that, The seaward edge of the first construction area is located on the side of the first construction area closer to the land area.

5. The construction method according to any one of claims 1-3, characterized in that, The first construction area includes a first inner wire, a second inner wire, and a first edge line. The first inner wire is connected to the second inner wire, and the first inner wire and the second inner wire are not collinear. The first edge line is connected between the end of the first inner wire away from the second inner wire and the end of the second inner wire away from the first inner wire.

6. The construction method according to claim 5, characterized in that, The second construction area includes a third inner wire, a fourth inner wire, a fifth inner wire, a sixth inner wire, and a second edge line connected end to end. The third inner wire is parallel to and adjacent to the first inner wire, and the first inner wire and the third inner wire form a first channel. The fourth inner wire is parallel to and adjacent to the second inner wire, and the fourth inner wire and the second inner wire form a second channel.

7. The construction method according to claim 6, characterized in that, The third construction zone includes a third edge line and a seventh inner wire, an eighth inner wire, and a ninth inner wire connected in sequence. The seventh inner wire is parallel to and adjacent to the sixth inner wire, and a third channel is formed between the seventh inner wire and the sixth inner wire. The eighth inner wire is parallel to and adjacent to the fifth inner wire, and a fourth channel is formed between the fifth inner wire and the eighth inner wire. The ninth inner wire is collinear with the fourth inner wire, and the ninth inner wire is parallel to and adjacent to the second inner wire, and a fifth channel is formed between the second inner wire and the ninth inner wire. The third edge line connects the seventh inner wire and the ninth inner wire.

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