A pile delivery device for PHC pipe pile hammer sinking based on waterway construction

Abstract

The invention relates to the technical field of pile foundation construction, and in particular to a pile delivery device for hammering and sinking PHC pipe piles based on waterway construction, comprising a PHC pipe pile and a pipe pile delivery device that cooperate with each other, and is characterized in that the pipe pile delivery device is fixedly arranged on the ground, and the PHC pipe pile is movably connected to the pipe pile delivery device; the technical problems that the existing hammer pile sinking device has complicated procedures and is difficult to accurately position during transportation, and that the pipe pile is easy to tilt and needs repeated adjustment during hammering and sinking, and the problem that the resistance of the pipe pile is continuously increased as the sinking depth increases during the sinking process of the pipe pile is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation construction, and in particular to a pile delivery device for sinking a PHC pipe pile with a hammer based on waterway construction. Background Art

[0002] PHC piles, the full name of which is prestressed high-strength concrete piles, are a type of foundation component widely used in civil engineering. They have high strength, high bearing capacity and good impact resistance, and can withstand the effects of natural forces such as earthquakes and strong winds. PHC piles are widely used in real estate projects, highways, railway infrastructure, soft soil, water conservancy projects and port construction, and are the foundation of modern industrial and civil construction projects.

[0003] Hammer pile driving utilizes the instantaneous impact mechanical energy of the pile hammer when it falls to overcome the resistance of the soil to the pile, destroy its static equilibrium state, cause the pile body to sink, and reach a new static pressure equilibrium state. By repeatedly hammering the pile head, the pile body will continue to sink. Hammer pile driving is the most commonly used pile driving method for precast piles. This method has a fast construction speed, a high degree of mechanization, a wide range of applications, and a high level of on-site civilization. However, the existing pile foundation, whether it is hammered with a drop hammer, a diesel hammer, or a hydraulic hammer, will encounter increasing resistance as the pile continues to sink. On the one hand, this resistance comes from the friction resistance caused by the increasing contact surface between the pile and the geology. On the other hand, as the geological layer continues to go deeper, the density of the bottom soil is greater than the density of the surface soil, and the resulting downward resistance will also increase accordingly.

[0004] The utility model patent with Chinese patent application number 202122939978.2 discloses a pile delivery device for hammering and sinking PHC piles, the pile delivery device comprising: a pile delivery rod, the bottom end of which is provided with a conical head inserted into the top of the PHC pile; a set of elastic energy-absorbing bases arranged on the outer edge of the PHC pile and placed on the ground, and a limit clamp fixedly sleeved on the outer edge of the pile delivery and located above the elastic energy-absorbing base; wherein the elastic energy-absorbing base comprises: damping springs sleeved on the outer edge of the PHC pile and arranged parallel to each other and evenly distributed between the upper shell plate and the lower base. This utility model effectively solves the problem that the elevation of PHC piles cannot be controlled during the hammering process and it is difficult to successfully sink the piles in one go. The technical solution proposed in the above utility model mainly prevents the impact force of the pile hammer from being transmitted to the PHC pipe pile through the arrangement of the pile delivery rod, the limit clamp and the elastic energy-absorbing base, thereby effectively improving the first-time qualified rate of pile sinking and avoiding unnecessary pile connection and pile cutting problems at the construction site. However, if the impact force of the pile hammer does not directly act on the PHC pipe pile, on the one hand, the force applied by the pile hammer will be lost, and on the other hand, the PHC pipe pile will still have a technical problem that the sinking resistance will gradually increase during the sinking process, resulting in reduced efficiency. Summary of the invention

[0005] Therefore, in order to solve the above problems, the present invention proposes a pile delivery device for PHC pipe pile hammer sinking based on waterway construction, which solves the technical problems that the existing hammer pile driving device has complicated procedures and is difficult to accurately position during transportation, and the pipe piles are easy to tilt and need repeated adjustments during the hammer sinking process. At the same time, it avoids the problem of increasing resistance as the sinking depth of the pipe pile increases during the sinking process.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a pile driving device for hammer-sinking piles of PHC pipe piles based on waterway construction, comprising a PHC pipe pile and a pipe pile driving device that cooperate with each other, characterized in that: the pipe pile driving device is fixedly arranged on the ground, and the PHC pipe pile is movably connected to the pipe pile driving device;

[0007] The pile driving device comprises a fixed base and a mobile pile driving machine movably arranged on the fixed base, the fixed base comprises a transporting part and a positioning part, the transporting part is provided with a movable guide rail, the movable guide rail extends along the length direction of the fixed base, the mobile pile driving machine is clamped on the movable guide rail and moves back and forth along the length direction of the movable guide rail under the drive of a motor, and the mobile pile driving machine is provided with a rotating transport frame for transporting and transferring PHC piles and rotating them;

[0008] The fixing base is provided with a plurality of positioning holes at intervals on the positioning part, and the spacing between two adjacent positioning holes is the same. An auxiliary positioning protrusion is provided at the edge of the positioning hole, and the auxiliary positioning protrusion surrounds the edge of the positioning hole and extends upward in the vertical direction. The auxiliary positioning protrusion is provided at the edge of its free end with a guide portion that is convenient for cooperating with the PHC pile;

[0009] The PHC pile has a hollow cylindrical body and a conical bottom. A buffer hammer part is provided on the top of the PHC pile and a vibrating loosening part is provided on the bottom of the PHC pile. The buffer hammer part and the vibrating loosening part are connected via a connecting shaft.

[0010] Furthermore, the upwardly extending height of the auxiliary positioning protrusion is one fifth to one quarter of the vertical height of the PHC pile.

[0011] Furthermore, the mobile pile driver includes a base, a supporting center column fixedly arranged on the base, the rotating transport frame is arranged on the supporting center column, the base and the movable guide rail are mutually clamped, the rotating transport frame includes a rotating shaft and a fastening cage arranged on the rotating shaft, the rotating shaft is arranged on the peripheral side surface of the supporting center column, which is opposite to the positioning portion, the rotating shaft and the supporting center column are perpendicular to each other and rotate 360° along their own axis, and the fastening cage rotates with the rotating shaft.

[0012] Furthermore, a rolling transport mechanism is arranged on the inner circumferential side of the fastening cage, and the rolling transport mechanism includes an active transport group and a driven transport group. The active transport group includes two relatively arranged active rollers, and the active rollers actively rotate under the drive of a motor, and the driven transport group includes two relatively arranged driven rollers.

[0013] Furthermore, the active roller and the driven roller can be extended and retracted on a horizontal plane to adapt to PHC piles of different specifications.

[0014] Furthermore, the guide portion includes an elastic telescopic rod arranged at the free end edge of the auxiliary positioning protrusion and a guide plate arranged on the telescopic rod. The guide plate and the telescopic rod are fixedly connected. The telescopic rod can be elastically telescoped along its axial direction in a manner of being driven to telescope by an external force and restoring its initial state after the force is lost.

[0015] Furthermore, the angle between the guide plate and the horizontal plane is 30°-45°.

[0016] Furthermore, a first convex edge is provided on the top of the PHC pipe pile, and the buffer hammer part includes an integrally formed second convex edge and a matching column, a high-strength telescopic spring is provided between the first convex edge and the second convex edge, and the matching column extends downward to be mutually sleeved with the PHC pipe pile.

[0017] Furthermore, a rubber buffer layer is provided on a side surface of the second convex edge close to the first convex edge.

[0018] Furthermore, the vibrating loosening part is arranged on the bottom of the PHC pile at its conical position, and the vibrating loosening part includes a connecting channel, a connecting sub-shaft, and a push plate. The connecting channel is arranged at the bottom of the PHC pile and is arranged in a surrounding shape. It runs through the inner and outer sides of the PHC pile. The push plate is arranged on the outside of the PHC pile. One side of the push plate close to the PHC pile is in contact with the outer side of the PHC pile. The connecting sub-shaft is passed through the connecting channel, one end of which is rotatably connected to the bottom of the connecting shaft, and the other end is rotatably connected to the push plate; dot-shaped protrusions are densely arranged on a side surface of the push plate away from the PHC pile.

[0019] By adopting the above technical solution, the beneficial effects of the present invention are:

[0020] 1. Compared with the existing PHC pipe pile delivery device, the present invention has the advantages of being able to perform automated transportation and delivery operations, automated pile foundation hole positioning operations, and being able to ensure that the pipe pile is always kept vertical to the horizontal plane during the hammering and sinking process, and being able to reduce the greater sinking resistance caused by deep geology during the hammering and sinking process. Specifically, the present invention uses a pipe pile delivery device to transport PHC pipe piles, a fixed base is fixed on the construction site in advance and stably cooperates with the ground, and then the PHC pipe piles are moved and transported by a mobile pile delivery machine that cooperates with the mobile pile delivery machine, thereby ensuring stability during the transportation process. A rotating transport frame is provided on the mobile pile delivery machine, the main purpose of which is to ensure the flexibility and convenience of transporting the PHC pipe piles, and the rotating frame is used during the placement process. The rotating transport frame is parallel to the horizontal plane, which is convenient for placing heavier PHC piles in a horizontal direction. After placement, the state of the PHC piles is adjusted by rotating the rotating transport frame to keep them vertical, and then they are matched with the positioning holes to perform hammering and pile sinking operations. The entire transportation process adopts electrical and mechanical transmission, avoiding manual intervention and reducing the risks of workers during operation. At the same time, the auxiliary positioning protrusion plays a role in ensuring that the PHC piles can always remain vertical to the horizontal plane during the hammering and pile sinking process, because its structure can assist in positioning the PHC piles, and a guide portion is arranged above it, which is arranged on the auxiliary positioning protrusion at the end edge of its free end, in order to ensure that the PHC piles can be more flexibly adapted to the rotating transport frame during the pile delivery process.

[0021] The present invention is provided with a buffer hammer part and a vibrating loosening part, wherein the buffer hammer part avoids the risk of deformation of the PHC pipe pile under gravity hammering, and the vibrating loosening part can assist in loosening the soil at the end of the pipe pile during the sinking process, better adapt to soils of different densities, overcome the different degrees of resistance brought by different soils, and the buffer hammer part and the vibrating loosening part cooperate with each other. That is, since the pipe pile is a structural member that sinks like geology after completion, it is obviously not practical to add electrical equipment in the pipe pile. The buffer hammer part and the vibrating loosening part in the present invention are both purely mechanical structures, and the principle of the cooperation between the two is that when the buffer hammer part is hammered by the hammer device to sink the pile, the external force is directly transmitted to the vibrating loosening part through the connecting shaft and drives the vibrating loosening part to work, killing two birds with one stone, and the buffer hammer part can be disassembled from the top after completion, and the vibrating loosening part can be used as a protective device for the pipe pile to protect the pipe pile in the later stage, thereby improving the service life of the pipe pile.

[0022] 2. The reason why the upward extension height of the auxiliary positioning protrusion in the present invention is set to one-fifth to one-quarter of the vertical height of the PHC pile is to ensure that stable auxiliary support is provided for the pile during the pile sinking process without causing interference during the working process.

[0023] 3. The mobile pile driver in the present invention is used for delivering and positioning pipe piles. The base is preliminarily firmly matched with the ground to ensure the accuracy of later construction. The pipe piles are delivered through the fastening cage. A rolling transport mechanism is arranged in the fastening cage, which is also an important part of mechanical automation. That is, only the end of the pipe pile needs to enter the fastening cage to cooperate with the rolling transport mechanism, and the pile delivery operation can be directly performed through the rolling transport mechanism. The rolling transport mechanism includes an active transport group and a driven transport group, wherein the active transport group and the driven transport group are perpendicular to each other, so that the pipe pile can be clamped and fixed from four directions during the working process, and the driving is driven by the active transport group, and the driven transport group performs auxiliary support. The active roller and the driven roller can both extend outward or retract inward during the working process, and the outward extension stroke is based on the abutment against the main pipe pile, which ensures that the fastening cage can adapt to the pile delivery operation of pipe piles of different specifications through the rolling transport mechanism, and the rolling transport mechanism can also be added to the auxiliary positioning protrusion on the positioning hole to cooperate with each other.

[0024] 4. The guiding part in the present invention comprises an elastic telescopic rod and a guide plate, wherein the angle between the guide plate and the horizontal plane is 30°-45°, the purpose of which is to provide guidance for the entry of the pipe pile. The reason why it is connected with the auxiliary positioning protrusion through the elastic telescopic rod is to ensure that when the pipe pile abuts against the guide plate and then enters the auxiliary positioning protrusion under the guidance of the guide plate, the guide plate will not be deformed or damaged due to the rigid connection, and the elastic connection provides a certain buffer space.

[0025] 5. The buffer hammering part in the present invention includes a second convex edge and a matching column, wherein a high-strength telescopic spring is arranged between the first convex edge and the second convex edge, and the function of the high-strength telescopic spring is to enable the buffer hammering part to automatically reset, thereby cooperating with the hammering device to perform repeated hammering operations; by arranging a rubber buffer layer on the side surface of the second convex edge close to the first convex edge, the rubber buffer layer reduces the noise of the impact on the one hand, and avoids the hard impact between the first convex edge and the second convex edge on the other hand, which may cause damage to the pipe pile.

[0026] 6. The vibrating loosening part in the present invention serves as a mechanism that is linked and cooperates with the buffer hammer part. It is connected to the matching column on the buffer hammer part through the connecting shaft and guides the force borne by the buffer hammer part to the bottom of the pipe pile. The force will be transmitted from the connecting shaft to the connecting auxiliary shaft and then to the push plate. At the moment of hammering, the push plate will be pushed outward by the force, so that a certain gap will be generated between the bottom of the pipe pile and the geological layer, providing space for the next sinking. The dense point-shaped protrusions arranged on the push plate can play an auxiliary loosening role at the moment when the push plate is pushed outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0030] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the top view structure of the auxiliary positioning protrusion in the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the PHC pipe pile in the present invention;

[0034] Figure 7 This is a schematic diagram of the front structure of the PHC pile in the present invention;

[0035] Figure 8 It is a schematic diagram of the internal structure of the PHC pile in the present invention (with a vibration loosening part structure). DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] See also Figure 1-Figure 8 The present invention provides a pile driving device for hammering and sinking PHC pipe piles based on waterway construction, comprising a PHC pipe pile 1 and a pipe pile driving device 2 that cooperate with each other, wherein the pipe pile driving device 2 is fixedly arranged on the ground, and the PHC pipe pile 1 is movably connected to the pipe pile driving device 2;

[0038] The pile driving device 2 comprises a fixed base 21 and a mobile pile driving machine 22 movably arranged on the fixed base 21, the fixed base 21 comprises a transporting part 211 and a positioning part 212, the transporting part 211 is provided with a movable guide rail 2111, the movable guide rail 2111 extends along the length direction of the fixed base 21, the mobile pile driving machine 22 is clamped on the movable guide rail 2111 and moves back and forth along the length direction of the movable guide rail 2111 under the drive of a motor, and the mobile pile driving machine 22 is provided with a rotating transport frame 3 for transporting and transferring the PHC piles 1 and rotating;

[0039] The fixed base 21 is provided with three positioning holes 2121 at intervals on the positioning portion 212, and the spacing between two adjacent positioning holes 2121 is the same. An auxiliary positioning protrusion 4 is provided at the edge of the positioning hole 2121, and the auxiliary positioning protrusion 4 surrounds the edge of the positioning hole 2121 and extends upward in the vertical direction. The auxiliary positioning protrusion 4 is provided with a guide portion 5 at its free end edge for easy cooperation with the PHC pile 1, wherein the number of the positioning holes 2121 is not rigidly limited, and its specific number is confirmed according to the length of the positioning portion 212 and the spacing between them during actual construction, and can be increased or decreased;

[0040] The PHC pile 1 has a hollow cylindrical body and a conical bottom. A buffer hammer part 7 is provided on the top of the PHC pile 1, and a vibrating loosening part 9 is provided on the bottom of the PHC pile 1. The buffer hammer part 7 and the vibrating loosening part 9 are connected by a connecting shaft 721, and the two work in linkage.

[0041] The upwardly extending height of the auxiliary positioning protrusion 4 is one-fifth to one-quarter of the vertical height of the PHC pile 1 , and is one-fifth in the present embodiment. It can be adjusted according to the actual construction conditions, and the adjustment reference is the length and diameter of the PHC pile 1 .

[0042] The mobile pile driver 22 includes a base 221 and a supporting center column 222 fixedly arranged on the base 221. The rotating transport frame 3 is arranged on the supporting center column 222. The base 221 and the movable guide rail 2111 are mutually clamped. The rotating transport frame 3 includes a rotating shaft 31 and a fastening cage 32 arranged on the rotating shaft 31. The rotating shaft 31 is arranged on the peripheral side surface of the supporting center column 222, which is opposite to the positioning portion 212. The rotating shaft 31 and the supporting center column 222 are perpendicular to each other and rotate 360° along their own axes. The fastening cage 32 rotates with the rotating shaft 31.

[0043] A rolling transport mechanism 6 is arranged on the inner circumferential side surface of the fastening cage 32, and the rolling transport mechanism 6 includes an active transport group 61 and a driven transport group 62. The active transport group 61 includes two relatively arranged active rollers, and the active rollers actively rotate under the drive of a motor. The driven transport group 62 includes two relatively arranged driven rollers, and the rolling state of the driven rollers is driven, and no additional driving mechanism is arranged.

[0044] The active roller and the driven roller can be extended and retracted on the horizontal plane to adapt to PHC piles 1 of different specifications. The guide part 5 includes an elastic telescopic rod arranged on the free end edge of the auxiliary positioning protrusion 4 and a guide plate 52 arranged on the telescopic rod 51. The guide plate 52 is fixedly connected to the telescopic rod 51. The telescopic rod 51 can be elastically extended and retracted along its axial direction. Its extension mode is driven extension and retraction under the action of external force, and restores to the initial state after losing force. The angle between the guide plate 52 and the horizontal plane is 45°. A first flange 11 is provided on the top of the PHC pile 1. The buffer hammer part 7 includes an integrally formed second flange 71 and a matching column 72. A high-strength telescopic spring 12 is provided between the first flange 11 and the second flange 71. The matching column 72 extends downward to be mutually sleeved with the PHC pile 1. A rubber buffer layer 8 is provided on the side surface of the second flange 71 close to the first flange 11.

[0045] The vibrating loosening part 9 is arranged on the bottom of the PHC pile 1 at its conical position, and the vibrating loosening part 9 includes a connecting channel 91, a connecting secondary shaft 92, and a push plate 93. The connecting channel 91 is arranged at the bottom of the PHC pile 1 and is arranged in a surrounding shape. It runs through the inner and outer sides of the PHC pile 1. The push plate 93 is arranged on the outer side of the PHC pile 1. The side of the push plate 93 close to the PHC pile 1 is in contact with the outer side of the PHC pile 1. The connecting secondary shaft 92 is passed through the connecting channel 91, one end of which is rotatably connected to the bottom of the connecting shaft 721, and the other end is rotatably connected to the push plate 93; the push plate 93 is densely provided with dotted protrusions 931 on one side away from the PHC pile 1.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pile delivery device for PHC pile hammer sinking based on waterway construction, comprising a PHC pile and a pile delivery device that cooperate with each other, characterized in that: The pipe pile delivery device is fixedly arranged on the ground, and the PHC pipe pile is movably connected to the pipe pile delivery device; The pile driving device comprises a fixed base and a mobile pile driving machine movably arranged on the fixed base, the fixed base comprises a transporting part and a positioning part, the transporting part is provided with a movable guide rail, the movable guide rail extends along the length direction of the fixed base, the mobile pile driving machine is clamped on the movable guide rail and moves back and forth along the length direction of the movable guide rail under the drive of a motor, and the mobile pile driving machine is provided with a rotating transport frame for transporting and transferring PHC piles and rotating them; The fixing base is provided with a plurality of positioning holes at intervals on the positioning part, and the spacing between two adjacent positioning holes is the same. An auxiliary positioning protrusion is provided at the edge of the positioning hole, and the auxiliary positioning protrusion surrounds the edge of the positioning hole and extends upward in the vertical direction. The auxiliary positioning protrusion is provided at the edge of its free end with a guide portion that is convenient for cooperating with the PHC pile; The PHC pile has a hollow cylindrical body and a conical bottom. A buffer hammer part is provided on the top of the PHC pile and a vibrating loosening part is provided on the bottom of the PHC pile. The buffer hammer part and the vibrating loosening part are connected by a connecting shaft. The mobile pile driver comprises a base, a supporting center column fixedly arranged on the base, the rotating transport frame is arranged on the supporting center column, the base and the movable guide rail are mutually clamped, the rotating transport frame comprises a rotating shaft and a fastening cage arranged on the rotating shaft, the rotating shaft is arranged on the peripheral side surface of the supporting center column, and it is directly opposite to the positioning part, the rotating shaft and the supporting center column are perpendicular to each other and rotate 360 ​​degrees along their own axis, and the fastening cage rotates with the rotating shaft; A rolling transport mechanism is arranged on the inner circumferential side of the fastening cage, and the rolling transport mechanism includes an active transport group and a driven transport group, the active transport group includes two oppositely arranged active rollers, the active rollers actively rotate under the drive of a motor, and the driven transport group includes two oppositely arranged driven rollers; The vibrating loosening part is arranged on the bottom of the PHC pile at its conical position, and the vibrating loosening part includes a connecting channel, a connecting sub-shaft, and a push plate. The connecting channel is arranged at the bottom of the PHC pile and is arranged in a surrounding shape. It runs through the inner and outer sides of the PHC pile. The push plate is arranged on the outer side of the PHC pile. One side of the push plate close to the PHC pile is in contact with the outer side of the PHC pile. The connecting sub-shaft is passed through the connecting channel, one end of which is rotatably connected to the bottom of the connecting shaft, and the other end is rotatably connected to the push plate; the push plate is densely provided with dotted protrusions on one side away from the PHC pile.

2. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 1, characterized in that: The upwardly extending height of the auxiliary positioning protrusion is one fifth to one quarter of the vertical height of the PHC pile.

3. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 2, characterized in that: The active roller and the driven roller can be extended and retracted on a horizontal plane to adapt to PHC piles of different specifications.

4. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 3, characterized in that: The guide portion includes an elastic telescopic rod arranged at the free end edge of the auxiliary positioning protrusion and a guide plate arranged on the telescopic rod. The guide plate and the telescopic rod are fixedly connected. The telescopic rod can be elastically telescoped along its axial direction in a manner of being driven to telescope by an external force and returning to an initial state after the force is lost.

5. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 4, characterized in that: The angle between the guide plate and the horizontal plane is 30°-45°.

6. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 5, characterized in that: A first convex edge is arranged on the top of the PHC pipe pile, and the buffer hammer portion includes an integrally formed second convex edge and a matching column, a high-strength telescopic spring is arranged between the first convex edge and the second convex edge, and the matching column extends downward to be mutually sleeved with the PHC pipe pile.

7. A pile delivery device for PHC pile hammer sinking based on waterway construction according to claim 6, characterized in that: A rubber buffer layer is arranged on one side of the second convex edge close to the first convex edge.

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