Hoisting pile driving barge suitable for offshore photovoltaic foundation construction and operation method of hoisting pile driving barge

Abstract

The invention discloses a hoisting pile driving barge suitable for offshore photovoltaic foundation construction and an operation method thereof. The hoisting pile driving barge comprises a main barge body, the bow of the main barge body is provided with a cabin, the middle of the main barge body is provided with a steel pile positioning system, and the stern of the main barge body is provided with a full-rotation crane and two pile driving mechanisms; the steel pile positioning system comprises four sets of steel pile positioning mechanisms which are symmetrically arranged on decks on the two sides of a ship side. The steel pile positioning mechanism comprises a positioning steel pile, a pile pulling device and a position adjusting mechanism; the rotary crane is fixed to a deck, and the two piling mechanisms are symmetrically arranged on the outer side of the main hull in the width direction of the main hull and rotationally arranged through rotary supporting structures correspondingly. According to the hoisting pile driving barge, through the steel pile positioning system and the anchoring positioning system, rapid positioning transition can be achieved, the positioning efficiency of the positioning barge is effectively improved, and the poor positioning precision is improved; the two piling mechanisms are matched with the rotary supporting structure, construction of a plurality of straight piles and inclined piles can be completed through one-time parking, and the piling efficiency in the operation construction process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore photovoltaic construction, and in particular to a lifting and piling vessel suitable for offshore photovoltaic foundation construction and an operation method thereof. Background Art

[0002] In the construction of offshore photovoltaic power generation, there are many problems with construction crane and pile-driving vessels, including: 1) Long positioning time and poor positioning accuracy: Due to the influence of marine environmental conditions such as waves and wind, the construction crane and pile-driving vessel will produce various movements during the pile sinking process, affecting the positioning of the pile foundation and the accuracy of pile driving, resulting in long positioning time and poor positioning accuracy; 2) Low construction efficiency: At present, the offshore photovoltaic industry lacks professional construction crane and pile-driving vessels. The existing crane and pile-driving vessels can only be stationed once to complete the construction of one foundation pile, and the piling efficiency is low; 3) The risk of collision between the construction crane and pile foundation: The influence of marine environmental conditions may cause the construction crane and pile foundation to collide with each other. Collisions may occur, affecting construction safety and efficiency; 4) Safety risks: offshore photovoltaic construction sites are generally located in near-shore tidal flats, which are greatly affected by tides and have high requirements for construction crane and piling boat equipment; 5) Currently, most construction crane and piling boats are small crane and piling boats: small construction crane and piling boats are constructed on site at sea. Due to their small deck area, small construction crane and piling boats cannot realize the equipment and material storage function, which makes the overall construction efficiency low and storage increases costs; Based on this, it is necessary to improve the structure of the current construction crane and piling boat to form a crane and piling boat suitable for offshore photovoltaic foundation construction and equipped with corresponding construction operation methods. Summary of the invention

[0003] The purpose of the present invention is to provide a lifting and piling vessel suitable for offshore photovoltaic foundation construction that solves the above-mentioned technical problems.

[0004] Another object of the present invention is to provide an operation method implemented by using the above-mentioned lifting and piling vessel suitable for offshore photovoltaic foundation construction.

[0005] To this end, the technical solution of the present invention is as follows:

[0006] A lifting and piling vessel suitable for offshore photovoltaic foundation construction comprises a main hull, a cabin is arranged at the bow, a steel pile positioning system is arranged at the middle, a fully rotating crane and two sets of pile driving mechanisms are arranged at the stern; wherein the steel pile positioning system comprises four sets of steel pile positioning mechanisms, which are grouped into two sets of steel pile positioning mechanisms arranged at intervals and symmetrically arranged on the left and right decks of the ship's side; each set of steel pile positioning mechanisms comprises a positioning steel pile and a pile pulling device; the positioning steel pile is vertically inserted into a pile insertion hole opened on the main hull, and its diameter is smaller than the hole diameter of the pile insertion hole; the pile pulling device is arranged on the adjacent side of the positioning steel pile and connected to the top of the positioning steel pile; the rotating crane is fixed on the deck, and the two sets of pile driving mechanisms are symmetrically arranged on the outer side of the stern of the main hull along the width direction of the main hull, and are fixed to the main hull through a rotating support structure; the two sets of pile driving mechanisms are respectively fixed on two fully rotating turntables on the rotating support structure to be arranged in rotation.

[0007] Furthermore, each set of steel pile positioning mechanism also includes a position adjustment mechanism, which includes a first jack group, a second jack group and a moving mechanism; the moving mechanism includes a slide, which is provided with a strip through hole along the length direction of the main hull, and is sleeved on the outside of the positioning steel pile through the strip through hole; two slide rails are symmetrically arranged along the length direction of the main hull, and the slide is slidably arranged on the two slide rails to move back and forth in the width direction of the main hull; the first jack group is composed of two first jacks, which are symmetrically embedded on the slide along the length direction of the main hull with the movable push rods facing the positioning steel piles, and the movable push rods of the two first jacks can move along their center lines in the strip through holes; the second jack group is composed of two second jacks, which are arranged along the width direction of the main hull, and are symmetrically arranged on both sides of the positioning steel pile with the movable push rods facing the positioning steel piles, and the ends of the movable push rods of the two are vertically fixed on the side walls of the slide.

[0008] Furthermore, a boom shelf is vertically arranged on the middle deck of the hull, and its arrangement position and height meet the following requirements: when the boom of the full-revolving crane is laid down to a horizontal state, the top side of the boom is pressed onto the top of the boom shelf.

[0009] Furthermore, each set of piling mechanism includes a piling frame, a hydraulic hammer and a hydraulic cylinder arranged on a mounting plate; the mounting plate is horizontally fixed on a fully rotating turntable, the piling frame is vertically arranged, and its bottom end is hingedly connected to one side edge of the mounting plate, the hydraulic cylinder is arranged in a manner that its movable push rod is inclined upward, and its cylinder end is hingedly connected to the opposite side edge of the mounting plate, and its movable push rod rod end is hingedly connected to the lower side wall of the piling frame; the hydraulic hammer is suspended on the top side of the piling frame, and a plurality of openable and closable clamps for holding piles are arranged at intervals from top to bottom on the piling frame on one side of the hydraulic hammer.

[0010] Furthermore, a limit plate is provided on the adjacent side wall of the mounting plate, and the rotary support structure includes two support beams arranged obliquely outward, the bottom ends of the two beams are fixed on the deck, and the top ends of the two beams are located outside the stern; two fully rotary turntables are respectively arranged horizontally and fixed on the top surfaces of the two support beams.

[0011] Furthermore, a plurality of support connection bases are arranged at intervals along the width direction of the stern deck of the main hull, and each support connection base cooperates with the bottom end of the support beam so that the bottom ends of the two support beams are connected and fixed on any two support connection bases to keep the spacing between the two support beams in accordance with construction requirements.

[0012] Furthermore, two pile frame mounting frames are symmetrically arranged on the stern deck of the hull, and their arrangement positions and heights satisfy that when the pile driving frame is laid down to a horizontal state toward the main deck, the top side of the pile driving frame is pressed onto the top of the pile frame mounting frame on the same side.

[0013] Furthermore, the lifting and piling vessel suitable for offshore photovoltaic foundation construction also includes four sets of anchoring and positioning systems, which are respectively arranged on both sides of the bow and the stern of the main hull.

[0014] An operation method implemented by using the above-mentioned lifting and piling vessel suitable for offshore photovoltaic foundation construction comprises the following steps:

[0015] S1. According to the construction requirements, the crane and pile-driving vessel is dispatched to the designated location of the water construction site and stationed there. Its stationing direction is: the stern of the main body of the vessel is parallel to the center line of the multiple pile positions to be constructed;

[0016] S2. Lower the four steel piles in the steel pile positioning system and use the position adjustment mechanism to fine-tune the stationary position of the ship body;

[0017] S3. The foundation pile transport ship for offshore photovoltaic panels is aligned with the side of the crane and pile driving ship; the pile frames of the two sets of pile driving mechanisms are placed upside down, and all the clamps on them are opened; the full-slewing crane lifts the piles from the foundation pile transport ship and feeds the piles to the pile frame, and the foundation piles are clamped on the pile frame through the clamps and connected to the pile hammer;

[0018] S4. According to the construction requirements of the foundation pile, the pile driving frame is turned upward from the horizontal state to the vertical state or the oblique setting state with the cooperation of the hydraulic cylinder, and then the foundation pile is horizontally rotated to the preset pile position through the rotary support structure; the pile hammer is started to complete the pile driving operation; wherein, the pile feeding and pile driving operations of the two sets of pile driving mechanisms are synchronously and alternately performed;

[0019] S5. After the piling operation is completed, the steel pile positioning system pulls out the four positioning steel piles, so that the crane pile driving ship moves to the next piling operation position.

[0020] Compared with the existing technology, the lifting and piling vessel suitable for offshore photovoltaic foundation construction can realize rapid positioning and transfer through the steel pile positioning system and anchor positioning system it carries, effectively improves the positioning efficiency of the positioning ship, and improves the poor positioning accuracy. At the same time, it has the function of beaching construction, which solves the problem that the offshore photovoltaic construction site is generally located in the nearshore mudflat waters and is greatly affected by the tide; and through the two sets of piling mechanisms and the corresponding slewing support structures arranged at the stern of the main ship, it can achieve one-time stationing and complete the piling construction of multiple straight piles and inclined piles preset in a linear manner, effectively improving the efficiency of piling operations; in addition, the reasonable arrangement of the above-mentioned onboard facilities effectively expands the usable area of ​​the deck, and can also solve the problem that the deck area of ​​existing small lifting and piling vessels is small and cannot be stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of a lifting and piling vessel suitable for offshore photovoltaic foundation construction in a construction operation state in an embodiment of the present invention;

[0022] Figure 2 It is a side view of a lifting and piling vessel suitable for offshore photovoltaic foundation construction in a sailing state according to an embodiment of the present invention;

[0023] FIG3( a ) is a side view of a steel pile positioning system of a lifting and piling vessel suitable for offshore photovoltaic foundation construction in an embodiment of the present invention;

[0024] FIG3( b ) is a top view of a position adjustment mechanism in a steel pile positioning system of a lifting and piling vessel suitable for offshore photovoltaic foundation construction in an embodiment of the present invention;

[0025] Figure 4 It is a construction schematic diagram of a crane piling vessel suitable for offshore photovoltaic foundation construction in the stern direction when constructing vertical piles in an embodiment of the present invention;

[0026] Figure 5 It is a construction schematic diagram of a crane piling vessel suitable for offshore photovoltaic foundation construction in the stern direction when constructing inclined piles in an embodiment of the present invention;

[0027] Figure 6 It is a side view schematic diagram of a lifting and piling vessel suitable for offshore photovoltaic foundation construction in an embodiment of the present invention when a crane cooperates with a piling frame to perform pile feeding operations. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0029] See also Figure 1The lifting and piling vessel suitable for offshore photovoltaic foundation construction includes a main hull 1, a cabin 2 is arranged at the bow of the main hull 1, a steel pile positioning system 6 is arranged in the middle of the main hull 1, and a full-rotation crane 3 and two sets of piling mechanisms 5 are arranged at the stern of the main hull 1.

[0030] In this embodiment, the main hull 1 has a length of 102 m, a width of 34 m, a depth of 6 m, a sailing draft of 3.5 m, and a deck load of 15 t / m 2 , deck area is 2000m 2 , making it suitable for dispatching, operation, and beaching construction in domestic offshore areas.

[0031] Cabin 2 is specifically located on the port side of the bow, including the cockpit and living cabin, which are used for driving and living by the operating personnel. The materials, outfitting and equipment arranged therein are all marine products. The indoor fire resistance integrity of the driving and living areas meets the requirements of the "Regulations on the Mandatory Inspection of Crane and Pile Driving Barges and Offshore Facilities - Technical Regulations on the Mandatory Inspection of Domestic Navigation Vessels" of the Maritime Safety Administration of the People's Republic of China.

[0032] The steel pile positioning system 6 includes four sets of steel pile positioning mechanisms, which are grouped into two sets of steel pile positioning mechanisms arranged at intervals and are symmetrically arranged on the left and right decks of the ship's side.

[0033] Referring to FIG3(a), each set of steel pile positioning mechanisms includes a positioning steel pile 601, a pile pulling device and a position adjustment mechanism. The positioning steel pile 601 is lifted and lowered by the pile pulling device arranged on its adjacent side and the position adjustment mechanism arranged on the deck, and the position of the main hull 1 is finely adjusted to ensure that the positioning steel pile 601 can be accurately inserted into the seabed and remain stable, and the lifting and piling ship can be kept accurately stationed at the designed position without using anchoring. In this embodiment, the length of the positioning steel pile 601 is 25m.

[0034] The deck of the autonomous hull 1 is provided with a pile hole 101 that passes through the hull from top to bottom, and the hole diameter thereof is larger than the outer diameter of the positioning steel pile 601, so that the positioning steel pile 601 can be vertically inserted into the pile hole 101, and the position of the pile hole 101 can be fine-tuned in four directions: front, rear, left, and right. In this embodiment, the positioning steel pile 601 is made of a cylindrical steel pile body with a length of 25m, and the bottom end of the pile body is set to a conical tip to facilitate the pile being driven into the mud. The pile hole 101 is a square hole.

[0035] The pile pulling device is arranged at the adjacent side of the positioning steel pile 601 and connected to the positioning steel pile 601, so as to lift the positioning steel pile 601 inserted under the mud surface; in actual application, the positioning steel pile 601 naturally falls down under the action of gravity and is driven into the mud, see FIG3(a), so that the lifting pile driving ship is stationed, and when the operation is completed and the lifting pile driving ship needs to be moved, the pile pulling device 602 is used to lift the positioning steel pile 601, so that the bottom end thereof is moved upward into the pile insertion hole 101, see FIG3(b). Figure 2 .

[0036] Referring to FIG. 3( b ), the position adjustment mechanism includes a first jack group, a second jack group and a moving mechanism to achieve fine adjustment of the position of the main hull 1 , thereby moving the lifting and piling barge from the current actual stationary position to a theoretical stationary position that matches the construction design.

[0037] The moving mechanism includes a slide 603 and two slide rails 604; the slide 603 is a cubic block horizontally arranged above the pile hole 101, and a strip through hole 605 intersecting the pile hole 101 is opened on it along the length direction of the main hull 1, so that the slide 603 is sleeved on the outside of the positioning steel pile 601; the two slide rails 604 are symmetrically arranged along the length direction of the main hull 1 and fixed on the decks on both sides of the pile hole 101, and the two ends of the slide 603 in the length direction of the main hull 1 are slidably arranged on the two slide rails 604 respectively. The slide 603 can be reciprocated along the width direction of the main hull 1 through the two slide rails 604; in the present embodiment, the slide rail 604 is a U-shaped slide rail; the two slide rails 604 are fixed on the deck with the track groove openings arranged relative to each other, and the size of the slide 603 is adapted to the track groove size of the slide rail 604, so that the slide 603 is respectively embedded in the track grooves of the two slide rails 604 at both ends in the length direction of the main hull 1, so as to realize the reciprocating movement of the slide 603 along the width direction of the main hull 1 through the two slide rails 604.

[0038] The first jack group is composed of two first jacks 602. Correspondingly, two jack mounting holes intersecting with the strip through hole 605 are horizontally opened on the slide 603 along the length direction of the main hull 1, so that the two first jacks 602 are arranged in the two jack mounting holes in such a way that the two movable push rods face the positioning steel pile 601, and the cylinders of the two first jacks 602 are fixed on the slide 603; in the initial state, the movable push rods of the two first jacks 602 are retracted in the cylinder, so that the rod ends of the movable push rods are flush with the hole wall of the pile insertion hole. Among them, the length of the strip through hole 605 is adapted to the hole diameter of the pile insertion hole 101, and the width is adapted to the outer diameter of the positioning steel pile 601; so that the first jack group cooperates with the positioning steel pile 601, and when the position of the main hull 1 is fine-tuned, the strip through hole 605 plays a guiding role to ensure that the positioning steel pile 601 moves along the length direction of the main hull 1.

[0039] The second jack group is composed of two second jacks 606, which are arranged along the width direction of the main hull 1 and are symmetrically arranged on both sides of the positioning steel pile 601 with the movable push rod facing the positioning steel pile 601; the movable push rod ends of the two second jacks 606 are respectively vertically fixed on the side walls of the slide 603 on both sides in the width direction of the main hull 1, so as to drive the positioning steel pile 601 to move in the width direction of the main hull 1 by pushing the slide 603.

[0040] The full-slewing crane 3 adopts existing equipment, which is used for the lifting and feeding of offshore photovoltaic foundation piles. It can turn over piles, erect piles, and lift piles to the pile driving mechanism 5 from the berthed foundation pile transport ship and insert the pile hammer. The full-slewing crane can also be used for conventional equipment and material transshipment and lifting work; in this embodiment, the full-slewing crane adopts a full-slewing crane with a maximum lifting weight of 500t, a maximum lifting height of the main hook of 70m above the deck surface, and a maximum lifting height of the auxiliary hook of 80m above the deck surface, and can achieve a rotation within ±270° to meet the current pile foundation operation requirements of offshore photovoltaic construction.

[0041] As another preferred technical solution of the present embodiment, a supporting structure is provided below the deck of the hull structure in the base area of ​​the full-revolving crane 3 to ensure that the deck has sufficient strength and rigidity for the full-revolving crane 3; specifically, the supporting structure is a longitudinal support and / or a transverse support fixed between the top surface of the bottom of the ship and the bottom surface of the deck.

[0042] Since the boom of the full-revolving crane 3 is placed upside down when the lifting and piling ship is traveling or not in use, a boom shelf 8 is vertically arranged on the middle deck of the hull 1; in the present embodiment, the boom shelf 8 adopts a frame body with a truss structure, and its setting position and height meet the following requirements: when the boom of the full-revolving crane 3 is laid down to a horizontal state, the top side wall of the boom is pressed onto the top of the boom shelf 8.

[0043] See also Figure 4 and Figure 5 The two sets of piling mechanisms 5 are respectively rotatably arranged on the main hull 1 through the slewing support structure 4 .

[0044] The revolving support structure 4 includes two support beams 401 arranged obliquely outward, so that the top side of the support beam body 401 is located outside the stern; wherein, a plurality of support connection bases are arranged at intervals along the width direction on the deck of the stern of the main hull 1, and each support connection base cooperates with the bottom end of the support beam 401, so that the bottom ends of the two support beams 401 are connected and fixed on any two support connection bases, and the spacing between the two support beams 401 is maintained to adapt to the construction requirements; the top surfaces of the two support beam bodies 401 are flat, and two fully revolving turntables 402 are respectively arranged horizontally and fixed on the top surfaces of the two support beam bodies 401.

[0045] In this embodiment, the height between the top side of the support beam 401 and the deck surface is 6m to 7m, and according to the actual construction, the bearing capacity of each support beam 401 is not less than 200t to meet the load-bearing requirements of the pile driver, hydraulic hammer, and engineering piles; the support connection base and the support beam 401 can be connected by but not limited to flange connection to achieve detachable fixation; the full-revolving turntable 402 adopts existing equipment, which uses a built-in motor to electrically drive the top turntable to rotate in a specified direction at a specified angle, so that the structure fixed on its top side table can rotate freely relative to the support beam 401.

[0046] Two sets of pile driving mechanisms 5 are symmetrically arranged on the full-rotation turntable 402 of the rotary support structure 4 along the width direction of the main hull 1; each set of pile driving mechanism 5 includes a pile driving frame 502, a hydraulic hammer 503 and a hydraulic cylinder 504 arranged on a mounting plate 501; wherein,

[0047] The mounting plate 501 is horizontally fixed on the full-revolving turntable 402, and the pile frame 502 is vertically arranged, and its bottom end is hingedly connected to one side edge of the mounting plate 501; in this embodiment, the pile frame 502 is an existing structure, which adopts a steel frame with a height of 40m, and is composed of a beam body with a truss structure and a guide rail frame fixed on the outside of the beam body, so that it has good structural strength and stability;

[0048] The hydraulic cylinder 504 is arranged with its movable push rod tilted upward, and its cylinder end is hingedly connected to the opposite edge of the mounting plate 501, so that it is arranged opposite to the pile frame 502, and its movable push rod end is hingedly connected to the lower side wall of the pile frame 502; the pile frame 502 can be tilted down in coordination with the hydraulic cylinder 504 to meet the requirements of inclined pile construction;

[0049] The top side of the pile driving frame 502 extends outward and forms a hanging beam. Correspondingly, a winch is fixed to the mounting plate 501. The wire rope on the winch is wound around the hanging beam through a pulley, so that the hydraulic hammer 503 is suspended on the adjacent side of the pile driving frame 502 through the winch, and is slidably connected with the guide rail frame of the pile driving frame 502 to realize the function of lifting the hydraulic hammer 503 on the pile frame; correspondingly, on the pile driving frame 502 on one side of the hydraulic hammer 503, a plurality of openable and closable hoops 505 for holding the pile are arranged at intervals from top to bottom, which are specifically arranged on the guide rail frame of the pile driving frame 502; the plurality of hoops 505 are coaxially arranged with the hydraulic hammer 503; in actual application, the plurality of hoops 505 are initially tightly held on the outer side of the foundation pile 10, and then as the foundation pile continues to descend, the plurality of hoops 505 are gradually opened from top to bottom to avoid interference with the gradual lowering and hammering of the hydraulic hammer 503.

[0050] In the initial state, the two sets of pile driving mechanisms 5 are symmetrically arranged with the pile frame 502 being located on one side of the ship's side, so that they can be tilted toward the main deck without interfering with the full-revolving crane 3, meeting the requirements of navigation height and navigation stability.

[0051] Similar to the full-revolving crane 3, the pile driving frames 502 of the two sets of pile driving mechanisms 5 are preferably arranged in an inverted manner during the travel of the lifting pile driving ship or when not in use. Therefore, two pile frame mounting frames 9 are symmetrically arranged on the stern deck of the hull 1. In this embodiment, the boom mounting frame 8 adopts a frame body with a truss structure, and its setting position and height meet the following requirements: when the pile driving frame 502 is tilted to a horizontal state toward the main deck, the top side frame wall of the pile driving frame 502 is pressed onto the top of the pile frame mounting frame 9 on the same side.

[0052] There are four sets of anchoring positioning systems 7, which are respectively arranged on both sides of the bow and stern of the main hull 1 to achieve the initial stationing of the crane and pile-driving vessel; the anchoring positioning system 7 is an existing device, which in actual application controls the winch in the system to retract, stop or loosen the cable through electric frequency conversion drive, so as to raise and lower the positioning anchor, so that the crane and pile-driving vessel is in a sailing state or anchored at a specified position.

[0053] The lifting and piling ship is also equipped with two main generator sets, which are specifically arranged in the bottom warehouse below the deck of the main ship and can be used in parallel for a long time. The capacity of each main generator set is 800kW. The two main generator sets are respectively connected to the oil pumps, water pumps, slewing crane 3, winches of the anchor positioning system 7, etc. of the whole ship to supply electricity to various equipment.

[0054] In addition, in this embodiment, the above-mentioned onboard facility layout also has the advantage of effectively expanding the usable area of ​​the deck, thereby solving the problem that the deck area of ​​existing small-sized crane and pile-driving vessels is small and cannot store anything.

[0055] A method of using the above-mentioned lifting pile-driving ship suitable for offshore photovoltaic foundation construction to complete the piling operation of two straight piles and two inclined piles arranged linearly in one station is as follows:

[0056] S1. See Figure 2 According to the construction requirements, the crane and pile-driving ship is dispatched to the designated location of the water construction site, and with the assistance of the anchor boat, the crane and pile-driving ship is positioned through the four anchoring positioning systems installed on the crane and pile-driving ship; wherein, the positioning direction of the crane and pile-driving ship is: the stern of the ship body is parallel to the center line of the multiple pile positions to be constructed, so that the two sets of pile-driving mechanisms 5 on the ship body 1 correspond to the four pile positions to be constructed, and the rough positioning of the pile-driving ship is realized;

[0057] S2. After the stationing is completed, the four positioning steel piles 601 in the steel pile positioning system 6 are lowered, and the position of the ship body 1 is fine-tuned by the position adjustment mechanism to achieve the precise positioning of the pile driving of the crane pile driving ship; with the assistance of the anchor boat, the four anchor positioning systems 7 on the ship body 1 are anchored;

[0058] S3. The foundation pile transport ship for offshore photovoltaic panels shall be alongside the port or starboard side of the ship; see Figure 6 , the pile frames 502 of the two sets of pile driving mechanisms 5 are placed upside down, and all the clamps 505 thereon are opened, and the piles are hoisted from the foundation pile transport ship by the full-slewing crane 3, and the piles are fed to the pile frames 502, and then all the clamps 505 are closed, so that the foundation piles are clamped by the clamps 505 on the pile frames 502; the top of the foundation pile is inserted into the replacement hammer at the bottom of the pile hammer 503, and fixed by the pile clamping device;

[0059] S4. Under the lifting action of the movable push rod of the hydraulic cylinder 504, the pile frame 502 rotates, and according to the specific construction requirements of the foundation pile, the pile frame 502 first turns upward from the horizontal state to the vertical state or the oblique setting state, and then the foundation pile is horizontally rotated to the preset pile position through the rotary support structure 4; then, the pile hammer 503 is started to perform the straight pile driving operation or the oblique pile driving operation;

[0060] In the above steps S3 and S4, the full-revolving crane 3 firstly performs pile lifting and pile feeding on the pile driving frame 502 far from the foundation pile transport ship, so that while performing the pile driving operation, the pile lifting and pile feeding work is performed on the pile driving frame 502 close to the foundation pile transport ship, so as to improve the construction efficiency; in addition, see Figure 5 Since the pile driving frame 502 of the present application can rotate, each set of pile driving mechanism 5 can complete the pile driving operation at multiple designed positions on its circumference;

[0061] S5. After the piling operation is completed, the steel pile positioning system 6 pulls out the four positioning steel piles 601, and then uses the anchor boat to move the lifting pile driving ship to the next location for piling foundation construction.

[0062] During the above construction process, since offshore construction is greatly affected by wind and waves, it is necessary to conduct pile position verification from time to time to ensure the accuracy of the construction.

[0063] In addition, as an extended operation mode of the above-mentioned construction operation method, when it is necessary to complete the construction of foundation piles on more pile positions in one station, after completing the construction of the current four foundation piles; use the full-revolving crane 3 to remove the two support beams 401 from the current two support connection bases in turn, and lift them to the other two support connection bases and connect and fix them, so that the current positions of the two pile driving frames are adapted to the new pile positions to be constructed, and repeat the above-mentioned steps S3 and S4 to complete the piling operation of the foundation piles.

[0064] To sum up, the use of the lifting and piling vessel of this embodiment can realize the efficient completion of offshore photovoltaic foundation pipe pile construction, and its construction scope includes straight piles and inclined piles; and according to the construction requirements, the piling operation of two straight piles and two inclined piles can be completed in one station, which is higher in efficiency and safety compared with the pipe pile construction operation of traditional dock operations.

Claims

1. A lifting and piling vessel suitable for offshore photovoltaic foundation construction, characterized in that: The invention comprises a main hull (1), a cabin (2) is arranged at the bow, a steel pile positioning system (6) is arranged at the middle, and a full-rotation crane (3) and two sets of pile driving mechanisms (5) are arranged at the stern; wherein the steel pile positioning system (6) comprises four sets of steel pile positioning mechanisms, which are arranged in a group with two sets of steel pile positioning mechanisms arranged at intervals and are symmetrically arranged on the left and right decks of the ship's side; each set of steel pile positioning mechanisms comprises a positioning steel pile (601) and a pile pulling device; the positioning steel pile (601) 1) is vertically inserted into a pile hole formed on the main hull (1), and its diameter is smaller than the hole diameter of the pile hole; the pile pulling device is arranged adjacent to the positioning steel pile (601) and connected to the top of the positioning steel pile (601); the slewing crane (3) is fixed on the deck, and two sets of pile driving mechanisms (5) are symmetrically arranged on the outside of the stern of the main hull (1) along the width direction of the main hull 1, and the two are freely rotatably arranged on the main hull (1) through a slewing support structure (4).

2. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1 is characterized in that: Each set of steel pile positioning mechanism also includes a position adjustment mechanism, which includes a first jack group, a second jack group and a moving mechanism; the moving mechanism includes a slide (603), on which a strip through hole (605) is opened along the length direction of the main hull (1), and is sleeved on the outer side of the positioning steel pile (601) through the strip through hole (605); two slide rails (604) are symmetrically arranged along the length direction of the main hull (1), and the slide (603) is slidably arranged on the two slide rails (604) to reciprocate in the width direction of the main hull (1); the first jack group is composed of two first jacks (602), which are symmetrically embedded on the slide (603) along the length direction of the main hull (1) in a manner that the movable push rods face the positioning steel pile (601), and the movable push rods of the two first jacks (602) can move along their center lines in the strip through hole (605); The second jack group is composed of two second jacks (606), which are arranged along the width direction of the main hull (1) and symmetrically arranged on both sides of the positioning steel pile (601) in a manner that the movable push rods face the positioning steel pile (601), and the ends of the movable push rods of the two are vertically fixed on the side walls of the slide (603).

3. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1 is characterized in that: A boom shelf (8) is vertically arranged on the middle deck of the hull (1), and its arrangement position and height meet the following requirements: when the boom of the full-revolving crane (3) is laid down to a horizontal state, the top side wall of the boom is pressed onto the top of the boom shelf (8).

4. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1, characterized in that: Each set of pile driving mechanism (5) comprises a pile driving frame (502) arranged on a mounting plate (501), a hydraulic hammer (503) and a hydraulic oil cylinder (504); the mounting plate (501) is horizontally fixed on the full-revolving turntable (402); the pile driving frame (502) is arranged vertically, and its bottom end is hingedly connected to one side edge of the mounting plate (501); the hydraulic oil cylinder (504) is arranged in a manner that its movable push rod is inclined upward, and its cylinder end is hingedly connected to the opposite side edge of the mounting plate (501), and its movable push rod rod end is hingedly connected to the lower side wall of the pile driving frame (502); the hydraulic hammer (503) is suspended on the top side of the pile driving frame (502), and a plurality of openable and closable clamps (505) for holding piles are arranged at intervals from top to bottom on the pile driving frame (502) on the side where the hydraulic hammer (503) is arranged.

5. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 4 is characterized in that: A limit plate is provided on the adjacent side wall of the mounting plate (501), and the rotary support structure (4) comprises two support beams (401) arranged obliquely outward, the bottom ends of the two beams are fixed on the deck, and the top ends of the two beams are located outside the stern; two fully rotary turntables (402) are respectively arranged horizontally and fixed on the top surfaces of the two support beams (401).

6. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1, characterized in that: A plurality of support connection bases are arranged at intervals along the width direction of the stern deck of the main hull (1), and each support connection base cooperates with the bottom end of the support beam (401), so that the bottom ends of two support beams (401) are connected and fixed to any two support connection bases, so as to keep the distance between the two support beams (401) in accordance with construction requirements.

7. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1, characterized in that: Two pile frame mounting frames (9) are symmetrically arranged on the stern deck of the hull (1), and their arrangement positions and heights satisfy the following conditions: when the pile frame (502) is laid down to a horizontal state toward the main deck, the top side of the pile frame (502) is pressed onto the top of the pile frame mounting frame (9) on the same side.

8. The lifting and piling vessel suitable for offshore photovoltaic foundation construction according to claim 1, characterized in that: It also comprises four sets of anchoring positioning systems (7), which are respectively arranged on both sides of the bow and the stern of the main hull (1).

9. An operation method implemented by using a lifting and piling vessel suitable for offshore photovoltaic foundation construction as described in any one of claims 1 to 8, characterized in that: Here are the steps: S1. According to the construction requirements, the crane and pile-driving vessel is dispatched to the designated location of the water construction site and stationed there. Its stationing direction is: the stern of the main body of the vessel is parallel to the center line of the multiple pile positions to be constructed; S2. Lower the four steel piles in the steel pile positioning system and use the position adjustment mechanism to fine-tune the stationary position of the ship body; S3. The foundation pile transport ship for offshore photovoltaic panels is aligned with the side of the crane and pile driving ship; the pile frames of the two sets of pile driving mechanisms are placed upside down, and all the clamps on them are opened; the full-slewing crane lifts the piles from the foundation pile transport ship and feeds the piles to the pile frame, and the foundation piles are clamped on the pile frame through the clamps and connected to the pile hammer; S4. According to the construction requirements of the foundation pile, the pile driving frame is turned upward from the horizontal state to the vertical state or the oblique setting state with the cooperation of the hydraulic cylinder, and then the foundation pile is horizontally rotated to the preset pile position through the rotary support structure; the pile hammer is started to complete the pile driving operation; wherein, the pile feeding and pile driving operations of the two sets of pile driving mechanisms are synchronously and alternately performed; S5. After the piling operation is completed, the steel pile positioning system pulls out the four positioning steel piles, so that the crane pile driving ship moves to the next piling operation position.

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