A combined pile sinking equipment applied to a channel revetment sheet pile

Abstract

The utility model relates to a kind of combined pile sinking equipment applied to channel revetment sheet pile, including flat barge, pontoon, hydraulic pile driver and diesel pile driver;Pontoon is connected with flat barge, and both are side by side in the second direction perpendicular to sheet pile installation direction;Hydraulic pile driver and diesel pile driver are respectively set on flat barge and pontoon, and both are respectively in two ends in the first direction parallel to the installation direction of sheet pile.The utility model connects into a combined hull with flat barge and pontoon longitudinally side by side, and respectively sets hydraulic pile driver and diesel pile driver on both, can realize the function of "one ship double machine" under the premise of keeping original hull dimension unchanged, without re-designing, checking drawing or issuing certificate to any hull, avoid the approval process brought by new construction or reconstruction of large pile driver, significantly shorten equipment commissioning cycle.

Description

Technical Field

[0001] This utility model belongs to the field of inland riverbank protection construction technology in water conservancy projects, and particularly relates to a combined pile driving device for sheet piles used in waterway bank protection. Background Technology

[0002] The installation of sheet piles for inland waterway revetments typically employs a "single-pile driving" process: after the steel sheet piles are hoisted to the designed pile location, the impact or vibration energy of the pile hammer is used to drive the pile into the foundation, forming a continuous retaining wall. Due to limitations imposed by waterway depth, bridge clearance, and shipping interference, construction can only be completed on shallow-water floating platforms. Therefore, the selection of pile driving equipment directly determines the pile driving efficiency, pile quality, and environmental impact.

[0003] Currently, the industry can only deploy a single large piling machine on the same construction platform (floating box or simple barge) – either a hydraulic piling machine or a diesel piling machine. Hydraulic piling machines are environmentally friendly, low-noise, and adjustable, making them suitable for soft soil and environmentally sensitive areas, but they lack power when encountering hard soil layers or long, heavy piles. Diesel piling machines have high impact, low cost, and high efficiency, making them suitable for hard soil and long, heavy piles, but they produce more noise, vibration, and exhaust fumes, have lower accuracy, and face environmental restrictions.

[0004] The geological conditions along inland waterways are frequently changing, with alternating layers of soft clay, silt, hard plastic clay, and even gravel interlayers on the same cross-section. Single piling equipment often cannot handle both types of soil, making continuous pile driving difficult. If two types of equipment are used successively, the equipment must be removed from the site, relocated, and repositioned, with the switching process taking more than half a day, drastically reducing efficiency. Directly installing two piling systems on the same hull requires a significant increase in deck length and structural strength. According to the "Technical Rules for Statutory Inspection of Inland Waterway Vessels," the vessel's stability, fire protection, and lifesaving designs must be redesigned and verified on the actual vessel. The approval-construction-inspection cycle usually takes several months to a year, which is far from meeting the immediate needs. As a result, the "one vessel, two engines" solution has not yet been widely adopted in inland waterway revetment projects. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, one aspect of this application proposes a combined pile driving device for use in waterway revetment sheet piles, comprising: A flat barge, the flat barge being used to travel along a first direction, the first direction being parallel to the installation direction of the sheet piles; A pontoon is disposed on one side of the flat barge in a second direction that is horizontal and perpendicular to the first direction, and is connected to the flat barge; A hydraulic pile driver is mounted on the flat barge and located at one end of the flat barge in the first direction; A diesel pile driver is mounted on the pontoon and is arranged adjacent to the sheet pile installation area; the diesel pile driver is located at the end of the pontoon away from the hydraulic pile driver in the first direction.

[0007] In this technical solution, the structural design connects the flat barge and the pontoon longitudinally side by side to form a combined hull, and installs hydraulic and diesel pile drivers on both. This allows for "one ship, two machines" functionality while maintaining the original hull dimensions, eliminating the need for redesigning, reviewing, or obtaining permits for either hull. This avoids the approval processes associated with building or modifying large pile driving vessels and significantly shortens the equipment commissioning cycle. Furthermore, with the two types of pile drivers located at the bow and stern of the combined hull, the diesel pile driver can perform a high-intensity impact on the sheet piles for initial positioning while the ship is moving, followed by precise driving of the same sheet piles by the hydraulic pile driver. This leverages the advantages of both types of equipment to achieve efficient and high-quality sheet pile driving.

[0008] In some embodiments, it further includes: A crane is mounted on the flat barge and located at the end of the flat barge away from the hydraulic pile driver in the first direction; the end of the flat barge away from the hydraulic pile driver in the first direction is provided with a material storage section for storing sheet piles, and the crane is used to lift the sheet piles stored in the material storage section to the diesel pile driver.

[0009] In the technical solution, the structural design arranges the crane and the stacking section on the same side of the bow of the flat barge, so that the crane can directly take piles from the material area of ​​the ship and supply piles to the diesel pile driver on the pontoon, forming a closed operation chain of "self-storage, self-retrieval, and self-supply". This eliminates the need for auxiliary pile transport ships and secondary transfer links, resulting in a shorter and smoother deck movement line and more compact and efficient continuous pile driving operations.

[0010] In some embodiments, the hydraulic pile driver includes: A slewing platform, which is rotatably mounted on a rotating seat fixedly installed on the flat barge; A boom, one end of which is movably connected to the rotating platform; A hydraulic hammer is positioned at the end of the boom away from the slewing platform, so that the boom extends the hydraulic hammer above the sheet pile installation area.

[0011] In the technical solution, the hydraulic pile driver uses a boom structure to extend the hydraulic hammer across the pontoon to the construction area, enabling the pile driving operation on the outer sheet piles of the pontoon. At the same time, the large-span extension of the boom distributes the pile driving load longitudinally to the combined hull, avoiding concentrated stress, effectively maintaining the stability of the hull, and improving construction stability.

[0012] In some embodiments, the diesel pile driver includes: A base is provided on the pontoon; A pile frame, which is mounted on the base; A diesel hammer is mounted at the top of the pile frame and is used to suspend it above the sheet pile installation area. The pontoon is provided with a guide rail, which is arranged along a first direction; the base is slidably disposed on the guide rail.

[0013] In this technical solution, the diesel pile driver can quickly align the hammer center with any pile position by sliding the base on the guide rail of the floating box, ensuring that each sheet pile receives accurate initial impact force. In addition, the diesel pile driver moves as a whole along the guide rail, which not only meets the stringent stability requirements of the pile frame, but also enables rapid adjustment of the hammer position. Thus, after completing the initial driving of one pile, it can immediately slide to the next pile position, continuously and efficiently completing the initial positioning of multiple sheet piles without moving the entire ship, which significantly improves the efficiency of long pile continuous operation in hard soil areas.

[0014] In some embodiments, at least two guide rails are provided, and the two guide rails are respectively provided at the two side edges of the pontoon.

[0015] In the technical solution, the structure is designed with two guide rails on the two sides of the pontoon. The diesel pile driver base straddles the double rails and slides, which not only enables the rapid repositioning of the whole machine, but also forms a "four-point support across the rails". The lateral hammering force is evenly distributed by the double rails, which effectively suppresses the swaying of the pile frame and the torsion of the pontoon, and significantly increases the overall stability during diesel pile driving operations.

[0016] In some embodiments, the pontoon has an empty section at the end away from the diesel pile driver in a first direction; The empty section is positioned opposite to the hydraulic pile driver in the second direction; The guide rail extends to the end of the open section near the diesel pile driver.

[0017] In the technical solution, the open section in this structural design is located at the tail end of the pontoon and is laterally opposite to the hydraulic pile driver. The space above it is specially reserved for the boom rotation and the hydraulic hammer crossing the pontoon. The guide rail only extends to the root of the open section and does not enter it, so that the diesel pile driver base is physically limited and cannot enter the space. This completely avoids spatial conflict between the diesel pile frame and the boom, ensuring that the hydraulic pile driver always has an unobstructed vertical working channel, and realizing safe and efficient collaboration of two machines on the same site without interference.

[0018] In some embodiments, the flat barge is connected to both ends of the pontoon via limiters at both ends in the first direction.

[0019] In the technical solution, the structural design enables the flat barge to be rigidly connected to the corresponding ends of the pontoon via detachable limiters at both ends, forming a "double-end fixed" whole. During hammering, the longitudinal and lateral relative displacement between the barge and the pontoon is completely constrained, the instantaneous stiffness of the platform is greatly improved, and the impact reaction force of the diesel hammer or hydraulic hammer can be directly transmitted longitudinally, significantly reducing fatigue of the connection nodes and torsion of the hull, ensuring the positioning accuracy of the pile top during the pile driving process. At the same time, the limiters can be quickly inserted and removed, meeting the needs of rapid transfer and repeated assembly and disassembly in inland waterways.

[0020] In some embodiments, the limiter includes: A connecting beam, wherein the connecting beam is disposed along a second direction; A connecting seat is fixedly mounted on the flat barge and the pontoon; it includes two connecting plates spaced apart along a first direction, and a connecting beam is disposed between the two connecting plates; A limiting pin, which passes through the two connecting plates of the connecting seat and the connecting beam along a first direction; The flat barge and the pontoon are each provided with at least two connecting seats, and each connecting seat is provided with a limiting pin. The multiple connecting seats are arranged along the second direction.

[0021] In the technical solution, the limiter in this structural design adopts a purely mechanical pin structure composed of a connecting beam, double connecting plates and a limit pin, which can quickly and rigidly connect the flat barge and the pontoon without welding on site; the length of the connecting beam can be changed according to the distance between the barge and the pontoon, adapting to different platform combinations; the limit pin can withstand shear force and can be sheared and replaced first in case of impact overload, protecting the main structure from damage, and realizing the triple functions of quick assembly and disassembly, standardized interchangeability and safe overload protection.

[0022] In some embodiments, the length of the pontoon is less than the length of the flat barge in the second direction.

[0023] In the technical solution, the structural design makes the longitudinal length of the pontoon smaller than that of the flat barge, retaining only the minimum dimensions to accommodate the diesel pile driver and guide rails, thus avoiding the pontoon being too wide and increasing the waterline area and lateral resistance. After the lateral dimensions are reduced, the width of the combined hull is controlled by the main hull (flat barge), the pontoon's interference with the water flow is reduced, the towing resistance is reduced, the steering is more flexible, the driving performance of the platform barge is maintained, and the combined hull can be easily deployed and quickly positioned.

[0024] In some embodiments, the pontoon is provided with a sheet pile positioning guide on the side away from the flat barge.

[0025] In the technical solution, the structure is designed with a sheet pile positioning and guiding device on the outside of the pontoon, which is rigidly connected to the pontoon body and moves synchronously with the hull. During the pile driving operation, the guiding device is always located directly below the hammer impact center, providing continuous and stable lateral constraints for the sheet pile, ensuring the verticality and alignment accuracy of the pile, and improving construction efficiency and pile quality.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a combined pile driving device for waterway revetment sheet piles according to an embodiment of this application; Figure 2 This is a partial enlarged view of a combined pile driving device for waterway revetment sheet piles according to an embodiment of this application; In the diagram: 1. Flat barge; 101. Stacking section; 102. Rotating seat; 2. Floating box; 201. Guide rail; 202. Opening section; 3. Hydraulic pile driver; 301. Hydraulic hammer; 302. Pile clamp; 303. Rotating platform; 304. Crane boom; 4. Diesel pile driver; 401. Diesel hammer; 402. Base; 403. Pile frame; 5. Sheet pile; 6. Crane; 7. Limiter; 71. Connecting beam; 72. Connecting seat; 721. Connecting plate; 73. Limit pin; 8. Sheet pile positioning and guiding device. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figure 1 As shown in the schematic embodiment of the combined pile driving equipment for waterway revetment sheet piles of this utility model, the combined pile driving equipment for waterway revetment sheet piles includes a flat barge 1, a pontoon 2, a hydraulic pile driver 3, and a diesel pile driver 4.

[0033] Flat barge 1 is a box-shaped barge with an open deck, no self-propulsion or low speed, and shallow draft. It is usually moved by tugboats pushing or cable winches. Its bow and stern lines are straight, and it has no tall superstructure, allowing it to be flexibly positioned in shallow inland waters and restricted waters near bridges. It is widely used for material transport, equipment carrying, and offshore construction operations. Flat barge 1 is used to travel in the water in the first direction, ensuring that the length of flat barge 1 is aligned with the first direction. Steel sheet piles 5 (hereinafter referred to as sheet piles) are usually driven into the underwater foundation (usually the riverbed or seabed). Channel revetments are usually composed of multiple sheet piles arranged in succession, so that during pile driving operations, the sheet piles are usually driven into the foundation sequentially along the first direction.

[0034] Floating box 2 is a rectangular sealed floating body welded from hollow steel plates. It features shallow draft, good stability, and easy assembly and disassembly, and is typically used as a modular floating platform unit for construction, equipment mounting, or temporary dock construction in shallow inland waterways. Floating box 2 is positioned on one side of flatbed barge 1 in the second direction, so that floating box 2 and flatbed barge 1 are arranged side-by-side along the second direction, which is horizontal and perpendicular to the first direction. The connection between floating box 2 and flatbed barge 1 allows them to form a combined hull structure that moves in the water, providing a larger, more stable working surface.

[0035] The hydraulic pile driver 3 typically includes a hydraulic hammer 301, a pile clamp 302, and a hydraulic power station (not shown in the attached drawings). The pile clamp 302 holds the top of the sheet pile, and a hydraulic cylinder drives the hydraulic hammer 301 to impact or vibrate. Energy is then transferred to the sheet pile through the pile clamp 302, driving the sheet pile into the foundation and achieving the sheet pile driving operation. The hydraulic system can precisely control the impact energy and frequency, achieving millimeter-level pile position adjustment and verticality control, making it suitable for high-precision pile driving operations with extremely high positioning accuracy requirements. The hydraulic pile driver 3 is mounted on the flat barge 1 and located at one end of the flat barge 1 in the first direction.

[0036] The diesel pile driver 4 typically includes a diesel hammer 401. The diesel hammer 401 falls freely, and its core impacts the top of the sheet pile while simultaneously compressing air in the cylinder and injecting diesel fuel, creating a secondary impact force. This results in continuous high-energy hammering, rapidly driving the sheet pile into the foundation using the principle of heavy hammer impact. This method is suitable for the initial driving and positioning of high-resistance, long, heavy piles. The diesel pile driver 4 is mounted on the pontoon 2, and is located at the end of the pontoon 2 furthest from the hydraulic pile driver 3 in the first direction. The sheet pile installation area is the construction area for sheet pile driving operations, where sheet piles are driven into the foundation of the sheet pile installation area. The sheet pile installation area is located on the side of the pontoon 2 furthest from the flat barge 1 in the second direction, making the diesel pile driver 4 adjacent to the sheet pile installation area.

[0037] In this structural design, both the flat barge 1 and the pontoon 2 are hull structures that have already been approved and verified. The flat barge 1 and the pontoon 2 are connected longitudinally side by side to form a combined hull, and hydraulic pile drivers 3 and diesel pile drivers 4 are installed on both of them respectively, realizing the "one ship, two machines" function. There is no need to redesign, review or issue certificates for either the flat barge 1 or the pontoon 2 hull structure, avoiding the approval process brought about by building or modifying large pile driving ships, and significantly shortening the equipment commissioning cycle.

[0038] Secondly, the structural characteristics of the diesel pile driver 4 prevent it from being installed and extended over a large span. Therefore, it is installed on the pontoon 2 adjacent to the sheet pile installation area, which facilitates the installation of sheet piles within the sheet pile installation area. The structural characteristics of the hydraulic pile driver 3 allow it to be extended over a large span. It is installed on the flat barge 1, which is separated from the sheet pile installation area by one pontoon 2. The hydraulic pile driver 3 can effectively install sheet piles within the sheet pile installation area. At the same time, the hydraulic pile driver 3 and the diesel pile driver 4 are installed on two separate hull structures, which avoids excessive load on a single hull structure, which could lead to excessive sinking or even capsizing of the hull. In addition, more space is reserved for the pontoon 2 and the flat barge 1, which facilitates the stacking of sheet piles and the movement of the pile driver.

[0039] In addition, during the pile driving operation, the combined pile driving equipment of this application first uses a diesel pile driver 4 with a diesel hammer 401 to complete the initial positioning of the sheet pile with high impact energy, quickly penetrating the hard soil layer and establishing a verticality benchmark. Then, the hydraulic pile driver 3 transmits energy to the sheet pile through a hydraulic hammer 301 and a pile clamp 302, and performs re-driving and fine adjustment of the sheet pile with adjustable vibration frequency and low impact, so as to achieve precise adjustment of the sheet pile and ensure the verticality and positional accuracy of the pile. The combination of the two equipment to drive sheet piles achieves complementary advantages, retaining the high-efficiency penetration of the diesel hammer 401 and giving full play to the precise control of the hydraulic hammer 301, realizing one-time pile formation without rework, and significantly improving the construction efficiency and pile quality of inland river revetment.

[0040] Furthermore, the diesel pile driver 4 is typically positioned at the bow of the assembled vessel, while the hydraulic pile driver 3 is typically positioned at the stern. Sheet piles are driven sequentially in a direction parallel to the first direction. As the assembled vessel moves in the first direction, the diesel pile driver 4 first reaches the first sheet pile requiring initial positioning. After the diesel pile driver 4 initially positions the first sheet pile in the foundation, the assembled vessel moves further forward, allowing the diesel pile driver 4 to move to the adjacent second sheet pile and perform initial positioning on it. The hydraulic pile driver 3 moves above the first sheet pile, allowing the initial positioning of the second sheet pile and the precise adjustment of the first sheet pile to be carried out simultaneously. This cycle is repeated to form a continuous rhythm of "one movement of the hull and parallel operation of two machines". The diesel hammer 401 is always responsible for the initial driving of the hard soil in front, while the hydraulic hammer 301 follows closely behind to complete the re-driving and fine adjustment of the already driven piles. The two machines are spatially staggered and overlap in time, which not only avoids mutual interference, but also allows each pile to complete the entire process of "coarse driving and fine driving" within a single step distance, which greatly improves construction efficiency and pile quality.

[0041] In some embodiments, the combined pile driving equipment applied to the sheet piles of the waterway revetment further includes a crane 6. The crane 6 is a rotary lifting device installed on the deck, which can be a general-purpose truck crane or a dedicated rotary crane fixedly installed on the deck. The crane 6 is mounted on the flat barge 1 and located at the end of the flat barge 1 away from the hydraulic pile driver 3 in the first direction, such that the crane 6 is positioned opposite the diesel pile driver 4 in the second direction. The flat barge 1 has a stockpile section 101 at the end away from the hydraulic pile driver 3 in the first direction, which is opposite the crane 6 in the second direction. The sheet piles are stored on the deck of the stockpile section 101 of the flat barge 1, making full use of the area on the deck of the flat barge 1 where neither the crane 6 nor the hydraulic pile driver 3 is located. During pile driving operations, the crane 6 lifts the sheet piles stored in the stockpile section 101 to the sheet pile installation area below the diesel pile driver 4, so that the diesel pile driver 4 can perform initial positioning of the sheet piles transported by the crane 6.

[0042] The structural design arranges the crane 6 and the stacking section 101 on the same side of the bow of the flat barge 1, so that the crane can directly take piles from the material area of ​​the ship and supply piles to the diesel pile driver 4 on the buoy 2, forming a closed operation chain of "self-storage, self-retrieval, and self-supply". This eliminates the need for auxiliary pile transport ships and secondary transfer links, resulting in a short and smooth deck movement line and more compact and efficient continuous pile driving operations.

[0043] In some embodiments, the hydraulic pile driver 3 includes a rotating platform 303, a boom 304, and a hydraulic hammer 301.

[0044] The slewing platform 303 is mounted on a rotating seat 102 fixedly installed on the flat barge 1, allowing it to rotate horizontally on the rotating seat 102 under the drive of a motor. The operating cabin of the hydraulic pile driver 3 is typically located on the slewing platform 303, allowing operators to clamp and drive sheet piles from within the operating cabin.

[0045] The boom 304 is typically a hinged multi-section swing structure, consisting of a boom, a forearm, and connecting rods. The sections are connected by pins and hydraulic cylinders. The boom root is hinged to the slewing platform 303, and the pitch cylinder drives it to swing up and down. The forearm cylinder drives the forearm to swing in two stages relative to the boom. The boom end is equipped with a hinge seat.

[0046] The hydraulic hammer 301 is located at one end of the boom 304 away from the rotary platform 303, and is usually located on the hinge seat of the boom 304. The boom 304 controls the height and horizontal position of the hydraulic hammer 301, and extends the hydraulic hammer 301 above the sheet pile installation area, thereby driving and precisely adjusting the sheet piles in the area.

[0047] In this structural design, the hydraulic pile driver 3, through the boom 304 structure, enables the hydraulic hammer 301 to extend across the pontoon 2 to the construction area, thereby realizing the pile driving operation on the outer sheet pile of the pontoon 2; at the same time, the large span extension of the boom 304 distributes the pile driving load longitudinally to the combined hull, avoiding concentrated stress, effectively maintaining the stability of the hull, and improving construction stability.

[0048] In some embodiments, the diesel pile driver 4 includes a base 402, a pile frame 403, and a diesel hammer 401.

[0049] The base 402 is typically a box-type welded steel structure, mounted on the floating box 2, serving as the foundation for the diesel pile driver 4. The pile frame 403 is typically a space truss structure, vertically fixed to the base 402, and is usually positioned at one end of the base 402 closest to the sheet pile safety area. The diesel hammer 401 is mounted at the top of the pile frame 403. The top of the pile frame 403 is typically equipped with a pulley system and a guide rail. The steel cable connecting the diesel hammer 401 is typically connected to a winch mounted on the base 402 via the pulley system, and the diesel hammer 401 is typically slidably mounted on the guide rail. The winch raises and lowers the diesel hammer 401 by winding or releasing the steel cable. The guide rail constrains the vertical movement of the hammer and withstands high-energy impacts. The height of the pile frame 403 is typically adjusted according to the length of the sheet pile, ensuring that the diesel hammer 401 is positioned above the sheet pile in the construction area. The pile frame 403 forms a geometrically invariant system through diagonal bracing and transverse bracing, ensuring overall rigidity and stability during hammering and ensuring that the sheet piles are accurately driven into the foundation along the design direction.

[0050] The pontoon 2 is equipped with a guide rail 201, which is arranged along a first direction. The base 402 is slidably mounted on the guide rail 201, allowing the diesel pile driver 4 to move in the first direction and adjust its position to achieve rapid alignment between the diesel pile driver 4 and the sheet pile.

[0051] This structural design allows the diesel pile driver 4 to slide on the guide rail 201 of the pontoon 2 via the base 402, quickly aligning the hammer center with any pile position, ensuring that each sheet pile receives accurate initial impact force. In addition, the diesel pile driver 4 moves as a whole along the guide rail 201, which not only meets the stringent stability requirements of the pile frame 403, but also enables rapid adjustment of the hammer position. Thus, after completing the initial driving of one pile, it can immediately slide to the next pile position, continuously and efficiently completing the initial positioning of multiple sheet piles without moving the entire vessel, significantly improving the efficiency of long pile continuous operation in hard soil areas.

[0052] In some embodiments, at least two guide rails 201 are provided, with the two guide rails 201 respectively disposed on the two side edges of the pontoon 2 in the second direction, thereby maximizing the distance between the two guide rails 201 in the second direction. The base 402 typically has a certain length in the first direction, and the two sides of the base 402 are slidably disposed on the two guide rails 201, so that each guide rail 201 forms a support point at both ends of the base 402 in the first direction, thereby achieving four-point support for the base 402 through the two guide rails 201. In this structural design, the diesel pile driver 4 base 402 straddles and slides on the double rails, with the two guide rails 201 disposed on the two side edges of the pontoon 2, increasing the support area of ​​the pontoon 2 for the diesel pile driver 4 through the guide rails 201, and forming a "four-point" support across the rails. The lateral hammering force is evenly distributed by the double rails, effectively suppressing the swaying of the pile frame 403 and the torsion of the pontoon 2, and significantly increasing the overall stability during diesel pile driving operations. Furthermore, the base 402 is usually provided with grooves on the ground, and the guide rails 201 are all slidably set in the corresponding grooves. Through the cooperation of the grooves and the guide rails 201, the stability of the diesel pile driver 4 in the second direction is improved.

[0053] In some embodiments, the pontoon 2 has a clearance 202 at the end away from the diesel pile driver 4 in a first direction. The clearance 202 is disposed opposite to the hydraulic pile driver 3 in a second direction. The guide rail 201 extends to the end of the clearance 202 near the diesel pile driver 4, preventing the diesel pile driver 4 from sliding into the clearance 202. This structural design reserves the space on the deck surface and above the deck of the clearance 202 for the rotation of the boom 304 of the hydraulic pile driver 3 and the movement of the hydraulic hammer 301 through the pontoon 2. The guide rail 201 only extends to the root of the clearance 202 and does not enter it, so that the base 402 of the diesel pile driver 4 is physically limited and cannot enter the clearance area. This completely avoids spatial conflict between the diesel pile frame 403 and the boom 304, ensuring that the hydraulic pile driver 3 always has an unobstructed vertical working channel, and achieving safe and efficient collaboration between the two machines in the same field without interference.

[0054] In some embodiments, the flat barge 1 is connected to both ends of the pontoon 2 via limiters 7 at both ends in the first direction, such that the bow end of the flat barge 1 is connected to the bow end of the pontoon 2 via limiters 7, and the stern end of the flat barge 1 is connected to the stern end of the pontoon 2 via limiters 7. The limiters 7 are detachable connection structures. This structural design allows the bow and stern ends of the flat barge 1 to be rigidly connected to the corresponding ends of the pontoon 2 via detachable limiters 7, forming a "double-end fixed" whole; during hammering, the longitudinal and lateral relative displacement between the barge and the pontoon is completely constrained, the instantaneous stiffness of the platform is greatly improved, and the impact reaction force of the diesel hammer 401 or hydraulic hammer 301 can be directly transmitted longitudinally, significantly reducing fatigue of the connection nodes and torsion of the hull, ensuring the positioning accuracy of the pile top during pile driving, and at the same time, the limiters 7 can be quickly inserted and removed, meeting the requirements of rapid transfer and repeated assembly and disassembly in inland waterways.

[0055] like Figure 2 As shown, in some embodiments, the limiter 7 includes a connecting beam 71, a connecting seat 72, and a limiting pin 73. The connecting beam 71 is typically made of square steel and is arranged along a second direction, such that the connecting beam 71 spans between the flat barge 1 and the pontoon 2, with both ends extending onto the flat barge 1 and the pontoon 2, respectively. Connecting seats 72 are fixedly installed on both the flat barge 1 and the pontoon 2. Each connecting seat 72 includes two connecting plates 721 spaced apart along a first direction. The distance between the two connecting plates 721 in the connecting seat 72 typically matches the width of the connecting beam 71 in the first direction, allowing the connecting beam 71 to be inserted precisely between the two connecting plates 721 of the connecting seat 72. The limiting pin 73 passes through the two connecting plates 721 of the connecting seat 72 and the connecting beam 71 along the first direction, thereby limiting the connection of the connecting beam 71 to the connecting seat 72 in the second direction, achieving a limiting connection between the connecting seat 72 and the connecting beam 71, thus connecting the flat barge 1 and the pontoon 2 via the connecting beam 71. Pulling out the limiting pin 73 quickly eliminates the limiting connection between the connecting seat 72 and the connecting beam 71, allowing the connecting beam 71 to be disassembled and the connection between the flat barge 1 and the pontoon 2 to be detachable. Both the flat barge 1 and the pontoon 2 are provided with at least two connecting seats 72, each with the limiting pin 73 threaded through it. Multiple connecting seats 72 are arranged along the second direction, ensuring that the connecting beam 71 has two connection points on both the flat barge 1 and the pontoon 2. This two-point connection constrains the angle of the connecting beam 71, keeping both the deck of the flat barge 1 and the deck of the pontoon 2 parallel to the connecting beam 71, thus ensuring that the decks of the flat barge 1 and the pontoon 2 remain aligned in the horizontal direction.

[0056] In this structural design, the limiter 7 adopts a purely mechanical pin structure consisting of a connecting beam 71, double connecting plates 721, and a limit pin 73. It can quickly and rigidly connect the flat barge 1 and the pontoon 2 without welding on site. The length of the connecting beam 71 can be changed according to the distance between the barge and the pontoon, adapting to different platform combinations. The limit pin 73 can withstand shear force and can be sheared and replaced first in case of impact overload, protecting the main structure from damage. It realizes the triple functions of quick assembly and disassembly, standardized interchangeability, and safe overload protection.

[0057] In some embodiments, in the second direction, the length of the pontoon 2 is less than the length of the flat barge 1. This structural design makes the longitudinal length of the pontoon 2 smaller than that of the flat barge 1, retaining only the minimum dimensions to accommodate the diesel pile driver 4 and the guide rail 201, avoiding the pontoon 2 being too wide and increasing the waterline area and lateral resistance; after the longitudinal dimension is reduced, the width of the combined hull is controlled by the main hull (flat barge 1), the interference of the pontoon 2 with the water flow is reduced, the towing resistance is reduced, the steering is more flexible, the driving performance of the platform barge is maintained, and the combined hull can be easily dispatched and quickly positioned.

[0058] In some embodiments, the pontoon 2 is provided with a sheet pile positioning and guiding device 8 on the side away from the flat barge 1. The sheet pile positioning and guiding device 8 is typically a frame structure. Sheet piles are placed inside the sheet pile positioning and guiding device 8 and positioned and clamped by the clamping structure of the sheet pile positioning and guiding device 8. In the clamped state, the sheet piles are driven into the foundation by a pile driver. The sheet piles are ensured to be driven into the foundation vertically under the clamping support. The sheet pile positioning and guiding device 8 is typically detachably installed on the caisson. After the first few sheet piles driven by the sheet pile positioning and guiding device 8 have been driven, since the edges of the sheet piles are interlocked, the subsequent sheet piles will be supported by the previously installed and fixed sheet piles. At this time, the sheet pile positioning and guiding device 8 can be removed and detached from the caisson. The structural design includes a sheet pile positioning and guiding device 8 installed on the outside of the pontoon 2, which is rigidly connected to the pontoon 2 and moves synchronously with the hull. During the pile driving operation, the guiding device is always located directly below the hammer impact center, providing continuous and stable lateral constraints for the sheet pile, ensuring the verticality and alignment accuracy of the pile, and improving construction efficiency and pile quality.

[0059] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A combined pile driving device for sheet piles used in waterway revetment, characterized in that, include: A flat barge, the flat barge being used to travel along a first direction, the first direction being parallel to the installation direction of the sheet piles; A pontoon is disposed on one side of the flat barge in a second direction that is horizontal and perpendicular to the first direction, and is connected to the flat barge; A hydraulic pile driver is mounted on the flat barge and located at one end of the flat barge in the first direction; A diesel pile driver is mounted on the pontoon and is arranged adjacent to the sheet pile installation area; the diesel pile driver is located at the end of the pontoon away from the hydraulic pile driver in the first direction.

2. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, Further includes: A crane is mounted on the flat barge and located at the end of the flat barge away from the hydraulic pile driver in the first direction; the end of the flat barge away from the hydraulic pile driver in the first direction is provided with a material storage section for storing sheet piles, and the crane is used to lift the sheet piles stored in the material storage section to the diesel pile driver.

3. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, The hydraulic pile driver includes: A slewing platform, which is rotatably mounted on a rotating seat fixedly installed on the flat barge; A boom, one end of which is movably connected to the rotating platform; A hydraulic hammer is positioned at the end of the boom away from the slewing platform, so that the boom extends the hydraulic hammer above the sheet pile installation area.

4. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, The diesel pile driver includes: A base is provided on the pontoon; A pile frame, which is mounted on the base; A diesel hammer is mounted at the top of the pile frame and is used to suspend it above the sheet pile installation area. The pontoon is provided with a guide rail, which is arranged along a first direction; the base is slidably disposed on the guide rail.

5. The combined pile driving equipment for waterway revetment sheet piles according to claim 4, characterized in that, At least two guide rails are provided, and the two guide rails are respectively provided at the two side edges of the pontoon.

6. The combined pile driving equipment for waterway revetment sheet piles according to claim 4, characterized in that, The pontoon has an empty section at the end away from the diesel pile driver in the first direction; The empty section is positioned opposite to the hydraulic pile driver in the second direction; The guide rail extends to the end of the open section near the diesel pile driver.

7. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, The flat barge is connected to both ends of the pontoon via limiters at both ends in the first direction.

8. The combined pile driving equipment for waterway revetment sheet piles according to claim 7, characterized in that, The limiter includes: A connecting beam, wherein the connecting beam is disposed along the second direction; A connecting seat is fixedly mounted on the flat barge and the pontoon; it includes two connecting plates spaced apart along a first direction, and a connecting beam is disposed between the two connecting plates; A limiting pin, which passes through the two connecting plates of the connecting seat and the connecting beam along a first direction; The flat barge and the pontoon are each provided with at least two connecting seats, and each connecting seat is provided with a limiting pin. The multiple connecting seats are arranged along the second direction.

9. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, In the second direction, the length of the pontoon is less than the length of the flat barge.

10. The combined pile driving equipment for waterway revetment sheet piles according to claim 1, characterized in that, The pontoon is equipped with a sheet pile positioning and guiding device on the side away from the flat barge.

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