A clogging-resistant pile shoe flushing system and its nozzle device

Abstract

This invention provides an anti-clogging pile shoe flushing system and its nozzle device, including a mounting cover, a parallel four-bar linkage, and a first push plate, a second push plate, a limiting plate, and a sealing plate, each connected to one of the four hinge points on the parallel four-bar linkage. The mounting cover is fixed to the inner wall of the pile shoe, forming a sealed cavity with a flushing hole at the bottom and a first water inlet pipe and a second water inlet pipe on both sides. The parallel four-bar linkage, consisting of a connecting rod and a spring forming a rhomboid structure, drives the sealing plate to open and close the flushing hole, preventing silt blockage. The push plate is slidably mounted on the first and second water inlet pipes. This invention constructs a stable mechanical transmission system by employing a planar four-bar linkage and spring linkage structure. When hydraulic or water pressure acts on the first and second push plates, it pushes the connecting rod mechanism to move, thereby driving the sealing plate to open the flushing hole; in the absence of pressure, the spring returns to its original position, causing the sealing plate to automatically close the flushing hole, preventing the flushing hole from being blocked by surrounding silt.

Description

Technical Field

[0001] This invention relates to the technical field of pile driving systems for self-elevating wind turbine installation vessels, specifically to an anti-clogging pile shoe pile driving system and its nozzle device. Background Technology

[0002] The self-elevating wind turbine installation vessel, a key piece of equipment in offshore wind farm construction, integrates loading and transportation, self-propulsion and self-elevation, heavy-duty lifting, and dynamic positioning functions, enabling it to adapt to complex sea conditions and complete wind turbine installation operations. Its core structure includes the hull, legs, pile shoes, and lifting system. The legs form a stable working platform by inserting into the seabed, while the pile shoes directly bear the hull load and distribute it to the seabed. After installation, a pile flushing system is used to remove silt around the pile shoes for safe pile extraction. The pile flushing system uses high-pressure water jets to impact the soil layer at the bottom of the pile shoes, eliminating negative pore water pressure and bottom cohesion, ensuring effective separation of the pile shoes from the seabed. This step is crucial for ensuring the safe evacuation of the vessel and shortening the operation cycle.

[0003] However, in practical applications, existing pile driving systems face several challenges. One major problem is nozzle clogging. Because nozzles are exposed to the external environment for extended periods, they inevitably suffer from seawater erosion, silt intrusion, and even marine organism attachment, all of which can lead to partial or complete blockage of the nozzle channels. Once the nozzles become clogged, the water flow velocity and pressure during the pile driving process are significantly reduced, thus affecting pile driving efficiency. In severe cases, construction may even need to be interrupted for cleaning and maintenance, causing significant disruption to the project schedule and increasing additional costs. Therefore, effectively solving the nozzle clogging problem has become crucial to improving the efficiency of the pile driving system and even the entire self-elevating wind turbine installation vessel. Summary of the Invention

[0004] To address the problem of nozzle clogging, this invention provides an anti-clogging pile driving system and its nozzle device. It uses high-pressure water flow as a power source and a planar four-bar linkage to open and close the pile driving hole, while avoiding the pile driving hole from being blocked by the surrounding silt. It has broad application prospects.

[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0006] A nozzle device for an anti-clogging pile shoe flushing system, characterized in that it includes a mounting cover, a parallel four-bar linkage, and a first push plate, a second push plate, a limiting plate, and a sealing plate respectively connected to four hinge points on the parallel four-bar linkage.

[0007] The mounting cover is installed on the inner wall of the pile shoe and cooperates with the pile shoe to form a sealed cavity; a pile punching hole is opened on the pile shoe at the bottom of the sealed cavity; a first water inlet pipe and a second water inlet pipe are coaxially arranged on the inner walls of the left and right sides of the mounting cover.

[0008] The parallel four-bar linkage includes a spring and a first link, a second link, a third link, and a fourth link that are hinged together at their ends to form a rhomboid planar structure; the two ends of the spring are respectively connected to the hinge points on the left and right sides of the rhombus, and the spring is always in a compressed state.

[0009] The first push plate, the second push plate, and the limiting plate are respectively connected to the hinge points of the first and second connecting rods, the hinge points of the third and fourth connecting rods, and the hinge point of the first and fourth connecting rods. The first push plate and the second push plate are slidably installed on the first and second water inlet pipes along the axial direction, and are fixed in the circumferential direction by key connection. The hinge points of the first and second connecting rods, and the hinge points of the third and fourth connecting rods are all located on the central axis of the first and second water inlet pipes. The sealing plate is located on the outside of the pile shoe and is connected to the hinge points of the second and third connecting rods inside the pile hole. The diameter of the sealing plate is larger than the diameter of the pile hole, and it is used to achieve sealing cooperation with the pile hole under the drive of the parallel four-bar mechanism.

[0010] Furthermore, both the first pusher plate and the second pusher plate are composed of a body and a cylinder, and their cross-sections are both "T" shaped. The cylinder of the first pusher plate is slidably installed on the first water inlet pipe, and the cylinder of the first pusher plate has several through holes and is tightly fitted with the first water inlet pipe. The cylinder of the second pusher plate is slidably installed on the second water inlet pipe, and the cylinder of the second pusher plate has several through holes and is tightly fitted with the second water inlet pipe.

[0011] Furthermore, the inner top surface of the mounting cover is provided with a piston cylinder that is adapted to the limiting plate, and a water outlet is provided at the bottom of the piston cylinder. The limiting plate is slidably installed in the piston cylinder body.

[0012] Furthermore, it also includes a limit adjustment mechanism, which includes a limit block and a screw. The screw passes through the mounting cover and is threadedly connected to the mounting cover. The limit block is located inside the mounting cover and is fixed to the end of the screw.

[0013] Furthermore, the mounting cover includes a cover body and an end cap, which are connected by a flange.

[0014] A pile shoe flushing system including the aforementioned nozzle device is characterized in that it includes a pile shoe top flushing assembly and a pile shoe bottom flushing assembly respectively disposed on the top surface and bottom surface of the pile shoe, as well as a water supply system.

[0015] The pile shoe top surface flushing assembly includes a pile shoe top surface flushing pipe and a number of nozzle devices distributed on the top surface of the pile shoe; the input end of the pile shoe top surface flushing pipe is connected to the water supply system, and the output end is connected to the number of nozzle devices respectively.

[0016] The pile shoe bottom surface flushing assembly includes a pile shoe bottom surface flushing pipe and a number of nozzle devices distributed on the bottom surface of the pile shoe. The input end of the pile shoe bottom surface flushing pipe is connected to the water supply system.

[0017] Furthermore, the pile shoe top surface flushing pipe includes a first main pipeline and several first flushing branch pipes. The input end of the first main pipeline is connected to the water supply system, and the output end is connected to the input end of each first flushing branch pipe. The output end of the first flushing branch pipe is connected to the first water inlet pipe and the second water inlet pipe in the corresponding nozzle device.

[0018] The pile shoe bottom impact pipe includes a second main pipeline and several second impact branch pipes. The input end of the second main pipeline is connected to the water supply system, and the output end is connected to each of the second impact branch pipes. The output end of the second impact branch pipes is connected to the first water inlet pipe and the second water inlet pipe in the corresponding nozzle device. The hydraulic valve is installed in each of the second impact branch pipes.

[0019] Furthermore, it also includes a nozzle unblocking assembly and several hydraulic valves. The nozzle unblocking assembly consists of several flushing pipes. The input end of the flushing pipe can be connected to the fire water supply system, and the output end can be connected to the nozzle device on the bottom surface of the pile shoe. Each of the second flushing pile branch pipes is equipped with a hydraulic valve.

[0020] Furthermore, the hydraulic valve control system of the hydraulic valve includes a quick connector, a mobile hand-cranked pump, a valve house, and several hydraulic pipes; the number of hydraulic pipes is the same as the number of the second pile branch pipes, the upper end of which is housed in the valve house and connected to the quick connector, and the lower end is connected to the hydraulic valve on the second pile branch pipe.

[0021] Furthermore, a protective cover is provided above the nozzle device on the top surface of the pile shoe. The protective cover has arc-shaped or square openings at both ends, and a threaded through hole in the middle that is opposite to the pile hole. The bolt passes through the threaded through hole and is threadedly connected to the nut located inside the protective cover. A spring washer is provided between the bolt and the protective cover to seal the threaded through hole.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. This invention constructs a stable mechanical transmission system by employing a planar four-bar linkage mechanism and a spring-driven linkage structure. When hydraulic or water pressure acts on the first and second push plates, it drives the linkage mechanism to move, thereby causing the sealing plate to open the pile-drilling hole; in the absence of pressure, the spring returns to its original position, causing the sealing plate to automatically close the pile-drilling hole. This design avoids the clogging problem caused by the long-term exposure of traditional nozzles to the external silt environment, achieving "on-demand opening" of the nozzle. In the non-working state, the sealing plate can effectively isolate the intrusion of mud and sand from the external environment, preventing the accumulation of deposits inside the pile-drilling hole, significantly improving the stability and service life of the nozzle device.

[0024] 2. This invention incorporates a limiting adjustment mechanism, including components such as a sleeve, support rod, and bolts, which allows for flexible adjustment of the distance between the limiting disc and the top of the mounting cover. This distance determines the gap between the sealing disc and the outer surface of the pile shoe, thereby controlling the pressure and flow rate of the high-pressure water jet ejected from the pile hole. Furthermore, the limiting disc not only serves a limiting function but also acts as a flow guide, replacing the traditional protective cover. After the water jet is ejected, it guides the water to uniformly scour the outer side of the pile shoe 360°, improving pile scouring efficiency and reducing safety hazards caused by uneven local scouring.

[0025] 3. This invention features multiple through holes on the cylinders of the first and second push plates, ensuring a tight fit between them and the corresponding first and second water inlet pipes. Even if a small amount of mud and sand enters around the pile hole, it effectively prevents the mud and sand from directly entering the main water inlet pipe, forming a physical barrier-like second layer of isolation and protection. This ensures the cleanliness and smooth flow of the entire water supply system, improving system reliability and maintenance cycle.

[0026] 4. This invention equips each nozzle device on the bottom surface of the pile shoe with an independent hydraulic valve, enabling individual control of each nozzle and adapting to complex geological conditions. It also includes a portable hand-cranked pump, quick couplings, and valve housing for easy on-site operation and maintenance, enhancing system flexibility and reliability.

[0027] 5. This invention, by setting up a flushing pipeline directly connected to the second flushing branch pipe between the hydraulic valve and the nozzle device, allows for direct cleaning of the nozzle device during pile shoe maintenance. Simultaneously, because the hydraulic valve is located upstream of the flushing inlet, it effectively prevents mud and sand from flowing back into the main pipeline during cleaning, avoiding secondary pollution and system damage, and ensuring the clean and efficient operation of the entire system.

[0028] 6. This invention utilizes an integrated valve house structure to fix the quick connector within the valve house cavity, and then mounts the valve house onto a mounting base above the hydraulic channel via a flange. This design not only saves installation space but also significantly improves the ease of operation for operators when connecting the mobile hand pump to the quick connector, enhancing the system's maintainability and safety. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the nozzle device of the pile shoe impact system described in this invention.

[0030] Figure 2 This is a schematic diagram of the pile shoe impact system described in this invention.

[0031] Figure 3 This is a schematic diagram of the hydraulic control system described in this invention.

[0032] Figure 4This is a schematic diagram of the limit adjustment mechanism described in this invention.

[0033] The attached figures are labeled as follows:

[0034] 1-Pile shoe; 101-Pile shoe top surface; 102-Pile shoe bottom surface; 2-Mounting cover; 3-First push plate; 4-Second push plate; 5-Limiting plate; 6-Sealing plate; 7-Sealing cavity; 8-Pile flushing hole; 9-First water inlet pipe; 10-Second water inlet pipe; 11-Spring; 12-First connecting rod; 13-Second connecting rod; 14-Third connecting rod; 15-Fourth connecting rod; 16-Pile flushing pump; 17-Check valve; 18-Upper nozzle; 19-Lower nozzle; 20-Pile shoe top surface pile flushing pipe; 21-Pile shoe bottom surface pile flushing pipe; 22-Hydraulic valve; 23-Flushing pipe; 24-Quick connector; 25-Mobile hand-cranked pump; 26-Valve house; 27-Hydraulic pipe; 28-Protective cover; 29-Bolt; 30-Spring washer; 31-Nut; 32-Fire water source; 33-Screw; 34-Adjusting limit block. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0036] Example 1

[0037] The anti-clogging pile shoe flushing system nozzle device described in this embodiment includes a mounting cover 2, a parallel four-bar linkage, and a first push plate 3, a second push plate 4, a limiting plate 5, and a sealing plate 6, which are respectively connected to four hinge points on the parallel four-bar linkage. Figure 1 This is a schematic diagram of the nozzle device of the pile shoe impact system described in this embodiment.

[0038] The mounting cover 2 includes a cover body and an end cap, which are connected by a flange. The mounting cover 2 is installed on the inner wall of the pile shoe 1 and cooperates with the pile shoe 1 to form a sealed cavity 7. A pile-driving hole 8 is opened on the pile shoe 1 at the bottom of the sealed cavity 7. A first water inlet pipe 9 and a second water inlet pipe 10 are coaxially arranged on the inner walls of the left and right sides of the mounting cover 2.

[0039] The parallel four-bar linkage includes a spring 11, a first link 12, a second link 13, a third link 14, and a fourth link 15. The two ends of the first link 12 are hinged to one end of the second link 13 and the fourth link 15, respectively. The two ends of the third link 14 are hinged to the other ends of the second link 13 and the fourth link 15, respectively, thus forming a rhomboid planar structure. The hinge points of the first link 12 and the second link 13 are elastically connected to the hinge points of the third link 14 and the fourth link 15 via the spring 11, which is always in a compressed state.

[0040] The first push plate 3, the second push plate 4, and the limiting plate 5 are respectively connected to the hinge points of the first connecting rod 12 and the second connecting rod 13, the third connecting rod 14 and the fourth connecting rod 15, and the hinge point of the first connecting rod 12 and the fourth connecting rod 15. The first push plate 3 and the second push plate 4 are slidably mounted on the first water inlet pipe 9 and the second water inlet pipe 10 along the axial direction, and are fixed in the circumferential direction by key connection. The hinge points of the first connecting rod 12 and the second connecting rod 13, and the hinge points of the third connecting rod 14 and the fourth connecting rod 15 are all located on the central axis of the first water inlet pipe 9 and the second water inlet pipe 10. A piston cylinder adapted to the limiting plate 5 is provided on the inner top surface of the mounting cover 2. A water outlet hole is opened at the top of the piston cylinder, and the limiting plate 5 is slidably mounted in the piston cylinder body. The sealing disc 6 is located on the outside of the pile shoe 1 and is connected to the hinge point of the second connecting rod 13 and the third connecting rod 14 inside the pile hole 8. The diameter of the sealing disc 6 is larger than the diameter of the pile hole 8, and it is used to achieve a sealing fit with the pile hole 8 under the drive of the parallel four-bar linkage.

[0041] Both the first pusher plate 3 and the second pusher plate 4 are composed of connected bodies and cylinders, and their cross-sections are T-shaped. The cylinder of the first pusher plate 3 is slidably mounted on the first water inlet pipe 9, and the cylinder of the first pusher plate 3 has several through holes and is tightly fitted with the first water inlet pipe 9. The cylinder of the second pusher plate 4 is slidably mounted on the second water inlet pipe 10, and the cylinder of the second pusher plate 4 also has several through holes and is tightly fitted with the second water inlet pipe 10.

[0042] Because the pile shoe is buried in the seabed soil and has frequent contact with mud and sand, the sealing disc and pusher disc are generally made of super duplex stainless steel. Regarding the selection of spring 11, given the high pressure of the pile driving pipe and the large amount of impurities in seawater, a high stiffness coefficient is chosen to ensure reliable reset and sealing. Precipitation hardening stainless steel 17-PH can be used, with an elastic limit of 1300-1500MPa, meeting both high stiffness requirements and good corrosion resistance. The parallel four-bar linkage is a special type of four-bar linkage with the following characteristics: two sets of opposite sides are parallel and equal; during mechanism movement, the connecting rods always maintain parallel movement without rotation; the dimensions of the parallel four-bar linkage can be designed according to the space at the bottom of the pile shoe, and the dimensions vary for each wind turbine. Under normal circumstances, the diameter of the sealing disc bottom surface is 60-120mm larger than the diameter of the pile driving hole, using a conical sealing device.

[0043] The pile shoe flushing system described in this embodiment, which includes the aforementioned nozzle device, comprises a pile shoe top surface flushing assembly and a pile shoe bottom surface flushing assembly respectively disposed on the pile shoe top surface 101 and the pile shoe bottom surface 102, a protective cover 28, a nozzle unblocking assembly, a hydraulic valve control system, and a water supply system. Figure 2 This is a schematic diagram of the pile shoe impact system described in this embodiment.

[0044] The pile shoe top surface flushing assembly includes a pile shoe top surface flushing pipe 20 and a plurality of nozzle devices distributed on the top surface of the pile shoe 1. The pile shoe top surface flushing pipe 20 includes a first main pipeline and a plurality of first flushing branch pipes connected together. The first main pipeline is connected to the flushing pump 16. Each first flushing branch pipe is connected to the first main pipeline and has a nozzle device connected to its end. The first flushing branch pipes are respectively connected to the first water inlet pipe 9 and the second water inlet pipe 10 in the corresponding nozzle device.

[0045] The pile shoe bottom surface flushing assembly includes a pile shoe bottom surface flushing pipe 21, several nozzle devices distributed on the bottom surface of the pile shoe 1, and several hydraulic valves 22. The pile shoe bottom surface flushing pipe 21 includes a second main pipeline and several second flushing branch pipes. The input end of the second main pipeline is connected to the flushing pump 16. Each second flushing branch pipe is connected to the second main pipeline, and a hydraulic valve 22 is installed on it, with a nozzle device connected to its end. The output ends of the second flushing branch pipes are connected to the first water inlet pipe 9 and the second water inlet pipe 10 of the corresponding nozzle device.

[0046] Each of the nozzle devices on the top surface 101 of the pile shoe is provided with a protective cover 28. The protective cover 28 has openings at both ends and a threaded through hole in the middle that is opposite to the pile hole 8. The bolt 29 passes through the threaded through hole and is threadedly connected to the nut 31 located inside the protective cover 28. A spring washer 30 is provided between the bolt 29 and the protective cover 28 to block the threaded through hole.

[0047] The hydraulic valve control system includes a quick connector 24, a portable hand-cranked pump 25, a valve housing 26, and several hydraulic pipes 27. The number of hydraulic pipes is the same as the number of the second pile driving branch pipes. Their upper ends are housed within the valve housing 26 and connected to the quick connector 24, while their lower ends communicate with the hydraulic valves 22 on the second pile driving branch pipes. The valve housing 26 has an internal cavity for accommodating the quick connector 24 and is connected to a mounting flange. The portable hand-cranked pump 25 communicates with the hydraulic pipes 27 via the quick connector 24 and is used to control the opening and closing of the hydraulic valves 22. Figure 3 This is a schematic diagram of the hydraulic control system described in this embodiment.

[0048] The nozzle clearing assembly is mainly used for flushing and clearing the nozzle devices on the bottom surface of the pile shoe. It includes several flushing pipes 23, the number of which is the same as the number of the second flushing branch pipes. The inlet of the flushing pipe 23 can be connected to the fire water supply system via a hose, and the outlet is connected to the nozzle device on the bottom surface 102 of the pile shoe. When the nozzle device on the bottom surface 102 of the pile shoe is blocked, it is flushed.

[0049] When the nozzles on the top surface 101 of the pile shoe, i.e., the upper nozzle 18, are blocked, they can be easily cleared manually. Simply unscrew the bolts on the protective cover 28 to expose the bolt holes, and use a cleaning and clearing tool to manually clear the nozzles through the bolt holes. When one or more nozzles on the bottom surface 102 of the pile shoe, i.e., the lower nozzle 19, are blocked, operate the hand-cranked pump to close the hydraulic valve 22, cutting off the flushing pipe; connect the flushing pipe to the fire water source 32 via a hose to flush the blocked lower nozzles, thus clearing the blocked nozzles on the bottom surface of the pile shoe.

[0050] Example 2

[0051] The difference between this embodiment and Embodiment 1 is that a limit adjustment mechanism is added to the nozzle device of the anti-clogging pile shoe flushing system. This limit adjustment mechanism includes a limit block 34 and a screw 33. The screw 33 passes through the mounting cover 2 and is threadedly connected to it. The limit block is located inside the mounting cover 2 and fixed to the end of the screw 33. Figure 4 As shown. The limiting position of the limiting block 34 is adjusted by the screw 33 to realize the limit of the movement of the limiting plate 5, that is, to control the size of the gap between the pile hole 8 and the sealing plate 6, thereby controlling the pressure and flow rate of the high-pressure water jet from the pile hole.

[0052] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A clog resistant spud shoe pile driving system nozzle apparatus, characterized by, The installation cover (2), the parallel four-bar mechanism, and the first push disc (3), the second push disc (4), the limiting disc (5) and the sealing disc (6) connected with the four hinge points on the parallel four-bar mechanism respectively are included. The installation cover (2) is installed on the inner wall of the pile shoe (1) and cooperates with the pile shoe (1) to form a sealed cavity (7); a pile driving hole (8) is formed on the pile shoe (1) at the bottom of the sealed cavity (7); coaxial first and second water inlet pipes (9) and (10) are arranged on the left and right inner walls of the installation cover (2). The parallel four-bar mechanism includes a spring (11) and first, second, third and fourth connecting rods (12, 13, 14 and 15) sequentially hinged at the ends to form a rhombus plane structure; the two ends of the spring (11) are connected to the hinge points on the left and right sides of the rhombus, and the spring (11) is always in a compressed state. The first and second push discs (3) and (4) and the limiting disc (5) are connected to the hinge points of the first and second connecting rods (12 and 13), the hinge points of the third and fourth connecting rods (14 and 15), and the hinge points of the first and fourth connecting rods (12 and 15) respectively; the first and second push discs (3) and (4) are slidably installed on the first and second water inlet pipes (9) and (10) in the axial direction and fixed in the circumferential direction by key connection; the hinge points of the first and second connecting rods (12 and 13) and the hinge points of the third and fourth connecting rods (14 and 15) are located on the central axes of the first and second water inlet pipes (9) and (10); the sealing disc (6) is located on the outside of the pile shoe (1) and connected to the hinge points of the second and third connecting rods (13 and 14) inside the pile driving hole (8); the diameter of the sealing disc (6) is greater than the hole diameter of the pile driving hole (8) to realize sealing cooperation with the pile driving hole (8) under the drive of the parallel four-bar mechanism; the first and second push discs (3) and (4) are composed of a body and a cylinder, and the cross sections are both "T" shaped; the cylinder of the first push disc (3) is slidably installed on the first water inlet pipe (9), and a plurality of through holes are formed on the cylinder of the first push disc (3) and tightly fit with the first water inlet pipe (9); the cylinder of the second push disc (4) is slidably installed on the second water inlet pipe (10), and a plurality of through holes are formed on the cylinder of the second push disc (4) and tightly fit with the second water inlet pipe (10). The limiting adjusting mechanism includes a limiting block (34) and a screw rod (33); the screw rod (33) penetrates the installation cover (2) and is threadedly connected with the installation cover; the limiting block is located in the interior of the installation cover (2) and fixed at the end of the screw rod (33).

2. A clog resistant spud shoe ram system nozzle apparatus as defined in claim 1, wherein, A piston cylinder adapted to the limiting disc (5) is arranged on the inner top surface of the installation cover (2), and a water outlet hole is formed at the bottom of the piston cylinder; the limiting disc (5) is slidably installed in the piston cylinder.

3. The anti-jamming spud shoe ram system nozzle apparatus of claim 1, wherein, The installation cover (2) includes a cover body and an end cover which are connected by a flange.

4. A spud shoe pile driving system comprising the anti-jamming spud shoe pile driving system nozzle apparatus of any one of claims 1-3, wherein, The pile shoe top surface pile flushing assembly and the pile shoe bottom surface pile flushing assembly are respectively arranged on the pile shoe top surface (101) and the pile shoe bottom surface (102), and a water supply system is further arranged; The pile shoe top surface pile flushing assembly comprises a pile shoe top surface pile flushing pipe (20) and a plurality of nozzle devices distributed on the pile shoe top surface (101); the input end of the pile shoe top surface pile flushing pipe (20) is connected with the water supply system, and the output end is connected with the plurality of nozzle devices respectively. The pile shoe bottom surface pile flushing assembly comprises a pile shoe bottom surface pile flushing pipe (21) and a plurality of nozzle devices distributed on the pile shoe bottom surface (102); the input end of the pile shoe bottom surface pile flushing pipe (21) is connected with the water supply system.

5. A spud can pile driving system according to claim 4, characterised in that, The pile shoe top surface pile flushing pipe (20) comprises a first main pipe and a plurality of first pile flushing branch pipes; the input end of the first main pipe is connected with the water supply system, and the output end is connected with the input end of each first pile flushing branch pipe respectively; the output end of the first pile flushing branch pipe is connected with the first water inlet pipe (9) and the second water inlet pipe (10) in the corresponding nozzle device respectively. The pile shoe bottom surface pile flushing pipe (21) comprises a second main pipe and a plurality of second pile flushing branch pipes; the input end of the second main pipe is connected with the water supply system, and the output end is connected with each second pile flushing branch pipe respectively; the output end of the second pile flushing branch pipe is connected with the first water inlet pipe (9) and the second water inlet pipe (10) in the corresponding nozzle device respectively; a hydraulic valve (22) is arranged in each second pile flushing branch pipe.

6. A pile driving shoe system according to claim 5, characterised in that A nozzle dredging assembly and a plurality of hydraulic valves (22) are further arranged; the nozzle dredging assembly is a plurality of flushing pipes (23); the input end of the flushing pipe (23) can be connected with the fire water supply system, and the output end is connected with the nozzle device on the pile shoe bottom surface (102); one hydraulic valve (22) is arranged on each second pile flushing branch pipe.

7. A pile driving shoe system according to claim 6, characterised in that The hydraulic valve control system of the hydraulic valve (22) comprises a quick connector (24), a mobile hand pump (25), a valve house (26) and a plurality of hydraulic pipes (27); the number of the hydraulic pipes is the same as that of the second pile flushing branch pipes; the upper end of the hydraulic pipe is accommodated in the valve house (26) and connected with the quick connector (24), and the lower end is connected with the hydraulic valve (22) on the second pile flushing branch pipe.

8. A pile driving shoe system according to claim 5, wherein, A protective cover (28) is arranged above the nozzle device on the pile shoe top surface (101); the two ends of the protective cover (28) are arc-shaped or square-shaped; the middle part has a threaded through hole opposite to the pile flushing hole (8); a bolt (29) is threadedly connected with a nut (31) in the protective cover (28) through the threaded through hole; and a spring washer (30) is arranged between the bolt (29) and the protective cover (28) to block the threaded through hole.

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