Construction equipment and method for water floating type photovoltaic anchoring screw pile

Abstract

The invention discloses construction equipment and method for a water floating type photovoltaic anchoring screw pile, the construction equipment comprises a shipborne water construction platform and a rotatable piling mechanism, the rotatable piling mechanism is arranged at one end of the shipborne water construction platform, and the rotatable piling mechanism is provided with an operable mechanical arm; a piling assembly is movably arranged at the front end of the mechanical arm and used for detachably installing a piling drill bit and a spiral pile in sequence. The mechanical arm is configured to rotate in a reciprocating mode in the first direction with the rotatable piling mechanism as the center, meanwhile, the piling assembly is configured to rotate in a reciprocating mode in the second direction with the end of the mechanical arm as the center, and reciprocating rotation in the first direction is defined as left-right swing parallel to the horizontal plane. The reciprocating rotation in the second direction is defined as back-and-forth swing perpendicular to the horizontal plane. The construction efficiency can be remarkably improved, the construction cost is reduced, the construction quality is guaranteed, and the construction period progress requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation on water, and in particular to a construction device and method for a floating photovoltaic anchoring spiral pile on water. Background Art

[0002] As is known, floating photovoltaic power stations use floating photovoltaic modules to generate electricity on the water surface using a floating platform. The characteristic is that it does not occupy land resources, and the water body has a cooling effect on the photovoltaic modules, which can suppress the rise in the surface temperature of the modules, thereby obtaining higher power generation. In addition, covering photovoltaic modules such as solar panels on the water surface can also reduce water surface evaporation, inhibit algae reproduction, and protect water resources.

[0003] At present, underwater spiral pile anchoring construction is usually carried out in the construction of water photovoltaic power stations to build a support system for floating photovoltaic power generation units on the water. For photovoltaic sites with larger areas, they will be divided into multiple independent photovoltaic arrays for separate construction. Because each independent photovoltaic array in the floating photovoltaic power generation unit on the water must use spiral piles as an anchoring system, the total number of spiral piles required for the construction of the entire water photovoltaic power generation project is as high as several thousand. However, due to the significance of the project construction and the demand for power generation, the project construction period will be as short as less than one year. Therefore, it is urgent to improve the efficiency of underwater spiral pile construction, which has become a key link in the grid-connected power generation of the entire photovoltaic site.

[0004] In the prior art, the existing finished pile-driving ship is used for spiral pile construction, which has low construction efficiency and is affected by external factors (wind force, water surface stability, etc.). The original ship-mounted self-contained pile driver is cumbersome to operate and prone to spiral pile explosion, which cannot meet the construction schedule requirements.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention proposes a construction device and method for floating photovoltaic anchoring spiral piles on water, which can significantly improve construction efficiency, reduce construction costs, ensure construction quality, and meet construction schedule requirements.

[0007] A construction device for a floating photovoltaic anchoring spiral pile according to the present invention comprises:

[0008] Ship-mounted water construction platform;

[0009] Rotatable pile driving mechanism, the rotatable pile driving mechanism is arranged at one end of the shipborne water construction platform, the rotatable pile driving mechanism has an operable robotic arm, and a pile driving assembly is movably arranged at the front end of the robotic arm. The pile driving assembly is used for detachably installing a pile driving bit and a screw pile in sequence;

[0010] The robotic arm is configured to reciprocally rotate along a first direction and centered on the rotatable pile driving mechanism, and at the same time, the pile driving assembly is configured to reciprocally rotate along a second direction and centered on the end of the robotic arm. The reciprocating rotation in the first direction is defined as the left and right swing parallel to the horizontal plane, and the reciprocating rotation in the second direction is defined as the front and back swing perpendicular to the horizontal plane.

[0011] According to some embodiments of the present invention, the rotatable pile driving mechanism includes a backhoe excavator, the backhoe of the backhoe excavator is replaced with a clamping plate type rotatable device, a hydraulic power head is fixedly connected to the clamping plate type rotatable device, the hydraulic power head is controlledly connected to the hydraulic system of the backhoe excavator, and the hydraulic power head is detachably connected to the pile driving bit or the screw pile through a multi-section connecting drill pipe;

[0012] The pile driving assembly composed of the clamping plate type rotatable device and the hydraulic power head, the operating arm of the backhoe excavator constitutes the robotic arm, the relative movement of the clamping plate type rotatable device and the operating arm corresponds to the reciprocating rotation in the second direction, and the movement of the operating arm along with the slewing platform of the backhoe excavator corresponds to the reciprocating rotation in the first direction.

[0013] According to some embodiments of the present invention, the working end of the pile driving bit is used for detachably connecting with the screw pile; an explosion-proof reinforcement plate is integrally connected to the working end, and a drill withdrawal movable gap is opened at the center of the explosion-proof reinforcement plate, and the drill withdrawal movable gap is used for drill withdrawal when the screw pile rotates in reverse.

[0014] According to some embodiments of the present invention, it further includes a GPS positioning mechanism, which is mainly composed of a GPS locator arranged at the front end of the robotic arm and a GPS signal station placed on the shore of the photovoltaic field area. The GPS locator is fixed together with the pile driving assembly.

[0015] According to some embodiments of the present invention, a platform fixing mechanism is further arranged on the shipborne water construction platform. The platform fixing mechanism includes at least one set of cooperating positioning piles and positioning pile lifters. The positioning piles are movably arranged on the shipborne water construction platform in a liftable manner, and the positioning pile lifters are used to drive the lifting movement of the positioning piles.

[0016] According to some embodiments of the present invention, a screw pile loading and unloading rack is further arranged on the shipborne water construction platform. The screw pile loading and unloading rack is arranged near the edge of the shipborne water construction platform and is used for assisting in the disassembly and assembly operations of the connecting drill pipe, the pile driving bit and the screw pile after installing a winch.

[0017] According to some embodiments of the present invention, the ship-borne water construction platform is further provided with a navigation mechanism and a cab, and the navigation mechanism and the cab are arranged together at one end of the ship-borne water construction platform away from the rotatable piling mechanism.

[0018] A construction method of a floating photovoltaic anchoring screw pile according to the present invention, based on the above-mentioned construction equipment, comprises the following steps:

[0019] 1) Use a ship-mounted water construction platform to transport a certain number of screw piles;

[0020] 2) According to the GPS positioning mechanism, the position of the piling point is dynamically monitored, and the ship-borne water construction platform is controlled to stop near the preset pile position;

[0021] 3) Use the platform fixing mechanism to fix the position of the ship-borne water construction platform;

[0022] 4) Use the screw pile installation and withdrawal frame, first install the connecting drill rod, pile driving drill bit and screw pile on the pile driving assembly in sequence;

[0023] 5) According to the GPS positioning mechanism, the actual piling position is monitored in real time, and the rotation angle of the mechanical arm and the piling assembly of the rotatable piling mechanism is controlled to align the spiral pile with the preset pile position and maintain a vertical angle;

[0024] 6) Using the hydraulic power head, the pile driving drill bit is driven to drive the spiral pile into a preset depth, and then the drill is withdrawn.

[0025] According to the present invention, a construction device and method for floating photovoltaic anchoring spiral piles on water are provided, by providing a ship-borne water construction platform and a rotatable pile driving mechanism, the rotatable pile driving mechanism can drive the pile driving drill bit and the spiral pile to reciprocate in a first direction and a second direction before operation, thereby achieving precise positioning and improving the quality of pile formation; at the same time, based on the rotatable pile driving mechanism, flexible operation without space restrictions can be achieved, visibility is increased, construction depth is clear, and multi-point operations can be completed by stopping the ship once, ultimately improving construction efficiency and shortening construction period.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of some embodiments of the construction equipment of the floating photovoltaic anchoring spiral piles of the present invention.

[0029] Figure 2Schematic front view structure diagram of some embodiments of the construction equipment for the floating photovoltaic anchoring screw pile of the present invention.

[0030] Figure 3 Schematic top view structure diagram of some embodiments of the construction equipment for the floating photovoltaic anchoring screw pile of the present invention.

[0031] Figure 4 Schematic three-dimensional structure diagram of some embodiments of the GPS signal station in the construction equipment for the floating photovoltaic anchoring screw pile of the present invention.

[0032] Figure 5 Schematic three-dimensional structure diagram of some embodiments of the pile driving bit in the construction equipment for the floating photovoltaic anchoring screw pile of the present invention.

[0033] Figure 6 Schematic bottom view structure diagram of some embodiments of the pile driving bit in the construction equipment for the floating photovoltaic anchoring screw pile of the present invention. Figure 7 Analysis and comparison chart of the operation time consumption of the screw pile before and after the application of the construction equipment and method of the embodiment of the present invention.

[0034] Meanings of the reference numerals in the figures:

[0035] 1 - Shipborne water construction platform;

[0036] 2 - Rotatable pile driving mechanism;

[0037] 21 - Manipulator;

[0038] 22 - Pile driving assembly; 221 - Clamp type rotatable device; 222 - Hydraulic power head;

[0039] 3 - GPS positioning mechanism;

[0040] 31 - GPS positioning instrument;

[0041] 32 - GPS signal station;

[0042] 4 - Platform fixing mechanism;

[0043] 41 - Positioning pile;

[0044] 42 - Positioning pile lifter;

[0045] 5 - Screw pile loading and unloading rack;

[0046] 6 - Connecting drill pipe;

[0047] 7 - Pile driving bit;

[0048] 71 - Explosion-proof reinforcement plate; 71 - 1 - Drill retraction clearance. Detailed implementation manners

[0049] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0050] A finished piling barge in the related art refers to a vessel used for piling operations on water. The hull is of a steel box structure, and a piling frame is installed at the end of the deck, which can be tilted forward and backward to meet the need for driving inclined piles. In the anchoring operation of a floating photovoltaic unit on water, when using a finished piling barge for the construction of screw piles, a winch is used as a fulcrum on the piling frame to hoist the screw pile up and down for operation. After fixing the pin of the screw pile, pile driving is carried out by using the hydraulic device of the hull. In this construction process, due to the fixed height and working width of the piling frame, the space is limited and it is impossible to operate in deep water areas during operation, resulting in inconvenient construction, low construction efficiency, and seriously affecting the construction progress.

[0051] In view of this, the embodiments of the present invention application aim to provide a construction equipment and method for a floating photovoltaic anchoring screw pile on water, which uses a rotatable piling mechanism to perform completely independent piling operations on the water surface, without space limitations, with flexible operations, increased visibility, and facilitating the intuitive determination of the construction depth. At the same time, with the help of the left - right swing of the robotic arm parallel to the horizontal plane, multiple - point operations can be completed with a single ship stop, greatly improving the construction efficiency, reducing the number of construction personnel, and lowering the construction cost. Moreover, the piling bit realizes precise positioning through the combined action of reciprocating rotation in the first direction and reciprocating rotation in the second direction, improving the pile forming quality and solving the problem that the edge straightness does not meet the design requirements due to excessive positioning deviation. In summary, the above problems are thus solved.

[0052] The following is based on Figures 1-6 to describe in detail the construction equipment for a floating photovoltaic anchoring screw pile of the present invention.

[0053] Please refer to Figures 1-3 , a construction equipment for a floating photovoltaic anchoring screw pile provided by an embodiment of the present invention includes a ship - borne water construction platform 1 and a rotatable piling mechanism 2. The rotatable piling mechanism 2 is arranged at one end of the ship - borne water construction platform 1. The rotatable piling mechanism 2 has an operable robotic arm 21, and a piling assembly 22 is movably arranged at the front end of the robotic arm 21. The piling assembly 22 is used for detachably installing a piling bit 7 and a screw pile in sequence. The robotic arm 21 is configured to be reciprocally rotatable in a first direction and centered on the rotatable piling mechanism 2. At the same time, the piling assembly 22 is configured to be reciprocally rotatable in a second direction and centered on the end of the robotic arm 21. The reciprocating rotation in the first direction is defined as the left - right swing parallel to the horizontal plane, and the reciprocating rotation in the second direction is defined as the front - back swing perpendicular to the horizontal plane.

[0054] In an embodiment of the present invention, the screw pile can be made of Q235B hot-dip galvanized steel pipe with a wall thickness of 5 mm and a blade thickness of 6 mm. After the photovoltaic array is assembled, it needs to be permanently fixed in the form of a screw pile. The screw pile is 3 meters long and is driven 2 meters into the bearing layer for anchoring.

[0055] The rotatable pile driving mechanism 2 in the embodiment of the present invention includes a backhoe excavator. The backhoe of the backhoe excavator is replaced with a clamping plate type rotatable device 221. A hydraulic power head 222 is fixedly connected to the clamping plate type rotatable device 221. The hydraulic power head 222 is controlled and connected to the hydraulic system of the backhoe excavator. The hydraulic power head 222 is detachably connected to a pile driving bit 7 through a multi-section connecting drill pipe 6, and then the pile driving bit 7 is detachably connected to the screw pile;

[0056] The pile driving assembly 22 composed of the clamping plate type rotatable device 221 and the hydraulic power head 222, and the operating arm of the backhoe excavator constitutes a robotic arm 21. The relative movement between the clamping plate type rotatable device 221 and the operating arm reciprocally rotates in a second direction, and the movement of the operating arm along with the slewing platform of the backhoe excavator reciprocally rotates in a first direction.

[0057] Specifically, a domestic PC200 type backhoe excavator can be selected as the backhoe excavator. As is well known, the configured hydraulic system can drive the rotation of the slewing platform, thereby driving the operating arm fixed thereto to reciprocally rotate in the first direction, that is, swing horizontally left and right, for example, it can swing within a range of 180°. Its hydraulic system can also control the overall reciprocating rotation of the clamping plate type rotatable device 221 in the second direction through the stick, that is, swing back and forth. Therefore, the four-way rotation of the pile driving bit 7 and the screw pile is achieved, and the purpose of precise pile driving is achieved.

[0058] The application of the backhoe excavator optimizes the flexibility and mobility of construction, is easy to implement, does not require adding too many cumbersome links, has low costs, a short modification period, and can be quickly put into construction.

[0059] Exemplarily, the clamping plate type rotatable device 221 can be a steel frame with multiple layers of plates. The top end of the steel frame is rotatably connected to the front end of the operating arm and is hinged to the original stick. The hydraulic power head 222 is vertically installed on the steel frame. More specifically, the first section of the connecting drill pipe 6 is connected by a pin, the middle connecting drill pipes 6 are connected end to end by a threaded method, the last section of the connecting drill pipe 6 is connected to the pile driving bit 7 by a threaded method, and finally the pile driving bit 7 and the screw pile are connected by a self-detachable method through reverse rotation. Exemplarily, the self-detachable method through reverse rotation is that the inserted end of the screw pile is aligned and inserted into the drill retraction clearance 71-1 of the pile driving bit 7 and then rotated by a certain angle to achieve fixed connection.

[0060] In this embodiment, the hydraulic power head 222 is connected to a hydraulic system through inlet and outlet oil pipes to form a control circuit, and can share the hydraulic system of a backhoe excavator to complete the piling operation, eliminating the need for a dedicated hydraulic oil system for the pile driver in existing pile driving vessels, simplifying the structure, reducing costs, and also solving the problems brought about thereby. For example, especially when there are multiple pile drivers on a pile driving vessel, the hydraulic oil system requires multiple engines to operate simultaneously to meet the flow and pressure supply of the hydraulic oil, ensuring that the engines do not stall during construction, resulting in high noise, serious waste of resources, and a poor working environment.

[0061] Referring to Figure 5 and Figure 6 , the working end of the pile driving bit 7 of the embodiment of the present invention is used for detachably connecting with the screw pile; an explosion-proof reinforcement plate 71 is integrally connected to the working end, and a drill withdrawal movement gap 71-1 is provided at the center of the explosion-proof reinforcement plate 71.

[0062] In the prior art, firstly, it is difficult to disassemble the drill pipe. Secondly, since the drill pipe is tightened after being rotated into the soil during forward rotation operation, it is difficult to control the reverse drill withdrawal underwater after the construction operation is completed, and the drill withdrawal depends entirely on feeling. Repeated attempts are extremely likely to cause the bit to be stressed repeatedly, resulting in the situation of drill explosion, seriously affecting the quality of underwater pile formation.

[0063] In the embodiment of the present invention, because the explosion-proof reinforcement plate 71 can greatly increase the structural strength of the pile driving bit 7, enabling it to withstand greater torque; therefore, the setting of the explosion-proof reinforcement plate 71 can prevent the pile driving bit 7 from cracking or bursting brittlely. Also, due to the existence of the drill withdrawal movement gap 7-1, a more relaxed drill withdrawal process is achieved: when the pile is in place and ready for drill withdrawal, the operating arm is slightly lifted, and then the pile driving bit 7 is driven in reverse, so that the drill withdrawal movement gap on it is aligned with the insertion end of the screw pile again, and the locking buckle at the insertion end can be disengaged from the fixed space between the explosion-proof reinforcement plate 71 and the pile driving bit 7. In this way, when the operating arm is vertically lifted, the drill can be withdrawn easily. At the same time, because the screw pile of this embodiment can directly enter the soil body with the pile driving bit 7, avoiding the situation where the pile driving bit 7 is locked after drilling into the soil, the settings of the drill withdrawal movement gap 71-1 and the combination of the screw pile and the pile driving bit 7 both solve the problem of difficult drill withdrawal.

[0064] During specific implementation, the screw pile and the steel wire rope can be pre-numbered, which can further save construction time.

[0065] Referring to Figure 1 and Figure 4 , the construction equipment of the embodiment of the present invention further includes a GPS positioning mechanism 3. The GPS positioning mechanism 3 is mainly composed of a GPS locator 31 provided at the front end of the robotic arm 21 and a GPS signal station 32 placed on the shore of the photovoltaic field area. The GPS locator 31 is fixed together with the piling assembly 22.

[0066] In the prior art, the GPS positioning device is installed on one side of the hull, and the GPS positioning point is permanently fixed, making the positioning inflexible. In the embodiment of the present invention, by fixing the GPS locator 31 at the front end of the robotic arm 21 and moving it together with the pile driving assembly 22, dynamic precise positioning can be achieved. In cooperation with the GPS signal station 32 arranged on the shore, compared with the original setting without a signal station, the problem of unstable or even interrupted and disappeared signals caused by the large water area is solved. Through relay amplification processing of the signals, it is more conducive for the GPS locator 31 to receive positioning signals in a shorter time.

[0067] On the shipborne water construction platform 1 of the embodiment of the present invention, a platform fixing mechanism 4 is further provided. The platform fixing mechanism 4 includes at least one set of positioning piles 41 and positioning pile lifters 42 used in cooperation. The positioning piles 41 are movably arranged on the shipborne water construction platform 1 in a liftable manner, and the positioning pile lifters 42 are used to drive the lifting movement of the positioning piles 41.

[0068] Exemplarily, two sets of positioning piles 41 and positioning pile lifters 42 are symmetrically arranged at both sides near the middle of the deck of the shipborne water construction platform 1. After the positioning pile lifter 42 fixes the positioning pile 41 by using a traction steel wire rope, the positioning pile 41 can be driven to lift by an automatic winding device such as an electric winch, so that the shipborne water construction platform 1 can be effectively fixed at one time after arriving, avoiding the problem that the accuracy cannot be controlled due to multi-point sequential anchoring during anchor positioning, and also solving the problem of extremely low operation efficiency caused by multiple positioning and repeated operation of the platform docking to find the correct position.

[0069] During the construction of the anchor screw pile, since the depth of each water area is different, it is necessary to adjust the installation of the drill pipe multiple times, which affects the work efficiency and there are also many potential safety hazards for working near water. Therefore, on the shipborne water construction platform 1 of the embodiment of the present invention, a screw pile loading and unloading rack 5 is further provided. The screw pile loading and unloading rack 5 is arranged near the edge of the shipborne water construction platform 1 and is used to install a winch and then assist in the disassembly and assembly operations of connecting the drill pipe 6, the pile driving bit 7 and the screw pile, which can replace manual work, reduce potential safety hazards, and improve the installation efficiency and accuracy.

[0070] With the winch installed on the screw pile loading and unloading rack 5, it is also possible to add drill pipes more conveniently, efficiently and with high quality. By cooperating with the forward and reverse rotation control of the excavator, the problems of inability to drill due to tightening during drill withdrawal and inability to be applied to deep water operations are solved.

[0071] In addition, in the prior art, the drill rod may fall into the water when the drill is taken out or withdrawn. Specifically, during the forward pile driving operation, the entire connected drill rod 6 is subjected to a large reaction force, and the threaded connection between each section of the connected drill rod 6 is particularly tight. When using the fixed pile driving frame in the prior solution, the drill rod needs to be manually fixed after a pile is driven, and the threaded connection of the drill rod is not easy to remove and is easy to slip after removal.

[0072] In the embodiment of the present invention, a screw pile installation and withdrawal frame 5 is provided to fix the connected drill rod 6 or the screw pile to be installed or withdrawn, and the thread can be disassembled by controlling the rotating device (i.e., the hydraulic power head 222). Since the connected drill rod 6 or the screw pile is fixed on the screw pile installation and withdrawal frame 5 during operation, it will not fall into the water and is easy to disassemble, thereby solving the two problems of the drill rod falling into the water and the difficulty of disassembly.

[0073] The shipborne water construction platform 1 of the embodiment of the present invention is further provided with a navigation mechanism and a cab, and the navigation mechanism and the cab are arranged together at one end of the shipborne water construction platform 1 away from the rotatable piling mechanism 2 .

[0074] The navigation mechanism may include a diesel engine, a generator and a propeller. Furthermore, a protective shed may be provided at the installation location of the diesel engine and the generator to shield against wind, rain and exposure to the sun.

[0075] The control of the navigation mechanism can be completed centrally in the cab. Furthermore, a display can be set up in the cab to facilitate the director to perform positioning and piling preparation operations alone, which simplifies the difficulty and complexity of construction, reduces the number of auxiliary personnel, and further optimizes construction efficiency and costs.

[0076] The embodiment of the present invention further provides a construction method of a floating photovoltaic anchoring screw pile on water, based on the above-mentioned construction equipment, comprising the following steps:

[0077] 1) Use the ship-borne water construction platform 1 to transport a certain number of screw piles;

[0078] The ship-borne water construction platform 1 can be used to load a preset number of screw piles at one time, for example, a day's worth of screw piles at one time, which is beneficial to simplifying the operation procedure, reducing construction costs, and improving construction efficiency.

[0079] 2) According to the GPS positioning mechanism 3, the position of the piling point is dynamically monitored, and the ship-borne water construction platform 1 is controlled to stop near the preset pile position;

[0080] During use, the GPS locator 31 rotates with the excavator operating arm within a certain angle range, such as 180 degrees, and the operation of the excavator can make positioning more accurate.

[0081] 3) Using the platform fixing mechanism 4 to fix the position of the ship-borne water construction platform 1;

[0082] 4) Using the screw pile installation frame 5, first install the connecting drill rod 6, the pile driving drill bit 7 and the screw pile on the pile driving assembly 22 in sequence;

[0083] 5) According to the real-time monitoring of the actual piling position by the GPS positioning mechanism 3, the rotation angle of the mechanical arm 21 and the piling assembly 22 of the rotatable piling mechanism 2 is controlled so that the spiral pile is aligned with the preset pile position and maintained at a vertical angle;

[0084] The original drill bit is a straight-insertion fixing method, which has extremely high requirements on the lowering angle of the spiral pile. The pile will be deformed if there is a slight bump on the water surface. The four-way rotating pile driving drill bit 7 of this embodiment can keep the spiral pile entering the water at a vertical angle after fixing the spiral pile even if there is a certain angle between the hull and the water surface.

[0085] 6) Use the hydraulic power head to drive the pile driving drill bit 7 to drive the spiral pile to the preset depth, and then withdraw the drill. At this point, the construction of one spiral pile is completed, and then the next spiral pile construction can be carried out by repeating steps 5) and 6); after all the spiral piles are constructed, the spiral pile installation and withdrawal frame 5 is used to assist in the disassembly of the pile driving drill bit 7 and the connecting drill rod 6.

[0086] The existing technology of anchoring spiral pile construction also has the problem of too many workers involved: 3 people for spiral pile installation and wire rope fixing; 1 person for positioning; 2 people for operating; 2 people for tying the float marker, and 2 people for drill rod installation, a total of 10 people, which requires a lot of human resources.

[0087] The existing anchoring spiral pile construction technology still has the problem that the positioning personnel, ship drivers, and operators need to receive information at the same time, and the degree of coordination is high, and they can only work after meeting the requirements.

[0088] On the whole, the use of pile-driving vessels with existing technology for spiral pile construction is cumbersome to operate, time-consuming to install materials, has many uncertainties in pile driving, and has a low safety factor, which does not meet the requirement of "spiral pile driving to the designed depth should take ≤ 1 hour".

[0089] The applicant has concluded through research, analysis and demonstration that the main reason for the low efficiency of spiral pile construction is the low performance of the original pile driving ship. The embodiment of the present invention provides a floating photovoltaic anchor spiral pile construction equipment and method, which specifically reduces the external tedious workload, greatly improves the construction efficiency, and is proven to be feasible through engineering practice.

[0090] Solution implementation verification:

[0091] In order to verify the implementation effect of the technical solution of the invention, the applicant retested the three pile drivers on site, selected multiple square points for testing, and arranged special personnel to record and retest the time taken for each pile-building. The results are shown in the table.

[0092]

[0093] The statistical data in the table shows that after the implementation of the technical solution of the present invention, the driving rate time of the screw pile is significantly shortened. It has been shortened from the original 2 hours per pile to 1 hour per pile, and the effect is obvious.

[0094] Conclusion on the verification of the solution effect: It can achieve the goal of "increasing the daily pile formation quantity of the screw pile from 15 to 40", meeting the construction period requirements.

[0095] Comparison and verification of implementation effects:

[0096] To further verify the technical effect, the applicant respectively implemented the technical solutions corresponding to the construction equipment and method of the present invention and the construction solutions of the prior art, and conducted effect comparison through multiple on-site tests and demonstrations, and recorded and summarized the actual effects.

[0097] After applying the innovative solution of the embodiment of the present invention, the construction efficiency of the screw pile for the floating solar power station is greatly improved, and good mechanical maintenance can be achieved, ensuring cyclic construction. See the following table.

[0098]

[0099] The on-site construction statistics show that the operation platform implemented by the present invention is more flexible and convenient than before. The operation radius of the excavator's operating arm has changed from the original fixed point to a construction range of 180 degrees, better increasing the working surface, and the finished product rate of pile driving construction reaches more than 90%, ensuring the qualification rate. And there are obvious changes in the construction effects before and after applying the innovative solution of the embodiment of the present invention. Originally, it took 15 days to complete a phalanx of screw piles, and after application, the forming phalanx cycle only takes 7 days.

[0100] At the same time, the time-consuming of each process in the screw pile operation process before and after application is also analyzed, and a comparison bar chart before and after the activity is drawn. See Figure 7 , Through the comparison of this chart, it shows that the construction rate of the screw pile has been significantly improved before and after application, and it has met the construction period requirements.

[0101] Economic benefits:

[0102] Taking the monthly rent of the pile driving ship as 20,000 yuan as an example, originally it took 5 months to complete 10 phalanxes. The various costs such as mechanical rental fees, fuel fees, maintenance fees, and operator salaries were as high as more than 100,000 yuan. With the innovative solution of the embodiment of the present invention, the construction period is shortened to 2 months to complete, and the cost is controlled at about 50,000 yuan, greatly saving the cost.

[0103] Technical benefits:

[0104] The embodiments of the present invention not only improve the progress of the construction method of the floating PV screw piles, but also liberate the management and construction personnel from a large number of cumbersome and complex tasks, effectively improving the construction efficiency of the project construction.

[0105] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0106] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0107] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] The above are only the preferred embodiments of the present invention, and do not impose any formal limitations on the present invention. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. A construction device for floating photovoltaic anchoring spiral piles on water, characterized in that: include: Ship-mounted water construction platform; A rotatable piling mechanism, the rotatable piling mechanism is arranged at one end of the ship-borne water construction platform, the rotatable piling mechanism has an operable mechanical arm, a piling assembly is movably arranged at the front end of the mechanical arm, and the piling assembly is used to detachably install a piling drill bit and a screw pile in sequence; The robotic arm is configured to be reciprocatingly rotatable in a first direction with the rotatable piling mechanism as the center, and the piling assembly is configured to be reciprocatingly rotatable in a second direction with the end of the robotic arm as the center, the reciprocating rotation in the first direction being defined as left-right swinging parallel to the horizontal plane, and the reciprocating rotation in the second direction being defined as forward-backward swinging perpendicular to the horizontal plane.

2. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 1, characterized in that: The rotatable piling mechanism comprises a backhoe excavator, the backhoe of the backhoe excavator is replaced by a clamp-type rotatable device, a hydraulic power head is fixedly connected to the clamp-type rotatable device, the hydraulic power head is control-connected to the hydraulic system of the backhoe excavator, and the hydraulic power head is detachably connected to the piling drill bit or the screw pile through a multi-section connecting drill rod; The combination of the splint-type rotatable device and the hydraulic power head constitutes the piling assembly, the operating arm of the backhoe excavator constitutes the mechanical arm, the relative movement of the splint-type rotatable device and the operating arm corresponds to the reciprocating rotation in the second direction, and the operating arm follows the movement of the slewing platform of the backhoe excavator corresponding to the reciprocating rotation in the first direction.

3. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 2, characterized in that: The working end of the pile driving drill bit is used for detachable connection with the spiral pile; the working end is also integrally connected with an explosion-proof reinforcement plate, and a drill withdrawal activity gap is opened at the center of the explosion-proof reinforcement plate, and the drill withdrawal activity gap is used for withdrawing the drill when the spiral pile is reversed.

4. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 3 is characterized in that: It also includes a GPS positioning mechanism, which is mainly composed of a GPS locator arranged at the front end of the mechanical arm and a GPS signal station placed on the shore of the photovoltaic field area. The GPS locator is fixed together with the piling assembly.

5. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 4, characterized in that: The ship-borne water construction platform is also provided with a platform fixing mechanism, which includes at least one group of positioning piles and positioning pile lifters used in conjunction with each other. The positioning piles are movable and can be raised and lowered on the ship-borne water construction platform, and the positioning pile lifters are used to drive the lifting and lowering movement of the positioning piles.

6. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 5, characterized in that: The ship-borne water construction platform is also provided with a spiral pile installation and withdrawal frame, which is arranged close to the edge of the ship-borne water construction platform and is used to assist the disassembly and assembly operations of the connecting drill rod, the piling drill bit and the spiral pile after the winch is installed.

7. The construction equipment of a floating photovoltaic anchoring screw pile according to claim 6, characterized in that: The ship-borne water construction platform is also equipped with a navigation mechanism and a cab, and the navigation mechanism and the cab are arranged together at one end of the ship-borne water construction platform away from the rotatable piling mechanism.

8. A construction method for floating photovoltaic anchoring spiral piles on water, characterized in that: Based on the construction equipment according to claim 7, the construction method comprises the following steps: 1) Using the ship-borne water construction platform to transport a certain number of screw piles; 2) dynamically monitoring the position of the piling point according to the GPS positioning mechanism, and controlling the ship-borne water construction platform to stop near the preset pile position; 3) Using the platform fixing mechanism to fix the position of the ship-borne water construction platform; 4) Using the screw pile installation and withdrawal frame, first install the connecting drill rod, the pile driving drill bit and the screw pile on the pile driving assembly in sequence; 5) According to the real-time monitoring of the actual piling position by the GPS positioning mechanism, the mechanical arm of the rotatable piling mechanism and the rotation angle of the piling assembly are controlled to align the screw pile with the preset pile position and maintain a vertical angle; 6) Using the hydraulic power head, the pile driving drill bit is driven to drive the spiral pile into a preset depth, and then the drill is withdrawn.

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