Damping and buffering device and pile foundation thereof

Abstract

The invention relates to the technical field of pile body foundation construction, and discloses a damping and buffering device and a pile foundation thereof. The damping and buffering device comprises a pressure-bearing steel plate (11), a high-damping buffering plate (12), a rotating steel plate (13), a waterproof elastic frame (14) and a base steel plate (15), and a frame of the base steel plate (15) is connected with the bottom of the rotating steel plate (13) in a sealed mode through the waterproof elastic frame (14); a jacking part of the base steel plate (15) is connected with the bottom of the rotating steel plate (13), and the top of the rotating steel plate (13) is fixedly connected with the pressure-bearing steel plate (11) through the high-damping buffer plate (12). According to the intelligent bracket, a traditional bracket is converted from a rigid force transmission point to an intelligent damping hub, and the intelligent bracket has the four functions of energy consumption high efficiency, displacement adaptability, state testability and damage controllability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pile foundation construction, and in particular to a shock-absorbing and buffering device and a pile foundation thereof. BACKGROUND

[0002] A pile cap bracket is a horizontal cantilever structure welded or mechanically connected to the side of a steel pipe concrete pile, and its main function is to support the vertical load transmitted from the upper structure and safely and effectively transmit it to the pile body. It is one of the key force transmission nodes in the pile foundation system, and is widely used in bridge pier column foundations, offshore platform guide pipes, large equipment foundations, industrial plant column foundations, wharf pile foundation platforms, support system fulcrums, etc.

[0003] The pile cap bracket is mainly designed statically, focusing on bending strength, shear strength and deformation control. The traditional design concept usually regards the bracket as a component bearing static or quasi-static load (average effect of dead load, live load and wind load), and the bracket and the pile body are rigidly welded to form an integral node. The "rigidity" and "static design concept" of the traditional bracket have many shortcomings when facing complex dynamic loads or unexpected impacts,

[0004] (1) The root of the rigidly connected bracket is a typical high stress concentration area. Under the action of dynamic horizontal loads such as earthquakes, wind vibration, wave force, vehicle impact, construction accidental impact, etc., the stress at this point increases sharply and changes rapidly. Although the existing technologies such as stiffening ribs, grinding of weld toes, post-weld treatment, etc. can be improved, they cannot effectively alleviate this fundamental weakness.

[0005] (2) The traditional pile cap bracket lacks an effective horizontal force buffering path. External impact energy, such as earthquakes, long-term wave load, mechanical vibration, etc., is directly and rigidly transmitted to the pile body through the rigid node, causing the pile-soil system to bear instantaneous peak load and possibly inducing chain damage to adjacent components. This is one of the most common failure modes of such nodes in pile foundation engineering.

[0006] (3) It cannot adapt to the slow horizontal displacement caused by temperature deformation and foundation settlement, and the forced constraint effect generates a non-negligible secondary internal force at the bracket-pile body interface, further exacerbating stress deterioration.

[0007] (4) The traditional bracket structure lacks built-in monitoring means, making it difficult to achieve early warning of node damage; and repair requires destructive demolition, which is almost impossible to implement in harsh environments such as the sea. SUMMARY

[0008] The present application aims to overcome the shortcomings of the prior art and provides a shock-absorbing and buffering device and a pile foundation thereof.

[0009] The damping and buffering device comprises a pressure bearing steel plate, a high-damping buffering plate, a rotating steel plate, a waterproof elastic frame and a base steel plate.

[0010] Preferably, the base steel plate comprises a steel plate body, a circular arc track, a roller rotating part, a reflective photoelectric sensor and a hydraulic jack, the steel plate body is provided with a frame, the reflective photoelectric sensor is installed in the frame and corresponds to the rotating steel plate, the center of the frame is provided with a circular clamping groove, the hydraulic jack is installed in the circular clamping groove and connected with the middle part of the rotating steel plate, a plurality of limiting grooves are arranged along the circumference of the circular clamping groove, the circular arc track is arranged in the limiting grooves, the center of the circular arc track overlaps with the center of the circular clamping groove, and the bottom of the rotating steel plate is rotationally connected with the circular arc track through the roller rotating part.

[0011] Preferably, the roller rotating part comprises a roller set, a rotating gripper, a bogie and a bogie screw, the roller set is rotationally connected with the circular arc track, the roller set is rotationally connected with one end of the bogie through the rotating gripper, and the other end of the bogie is connected with the rotating steel plate through the bogie screw.

[0012] Preferably, the reflective photoelectric sensor comprises a light source transceiver and a wire, the light source transceiver is installed in the frame and corresponds to the rotating steel plate.

[0013] Preferably, the hydraulic jack comprises a jacking jack, an oil pipe and a jack handrail, the jacking jack is installed in the circular clamping groove through the jack handrail, the jacking jack is connected with one end of the oil pipe, and the other end of the oil pipe penetrates through the waterproof elastic frame and extends outwards.

[0014] Preferably, the top of the rotating steel plate is provided with a rotating steel plate trapezoidal groove, the lower end of the high-damping buffering plate is embedded in the rotating steel plate trapezoidal groove, the bottom of the rotating steel plate is provided with a reflective sheet and a threaded hole, the reflective sheet corresponds to the reflective photoelectric sensor, and the roller rotating part is installed in the threaded hole.

[0015] Preferably, the pressure bearing steel plate is provided with a pressure bearing steel plate trapezoidal groove, and the high-damping buffering plate is embedded in the pressure bearing steel plate trapezoidal groove.

[0016] Preferably, the high-damping buffer plate is embedded with longitudinal and transverse spiral steel wire mesh, and rubber trapezoidal protrusions are arranged on two surfaces of the high-damping buffer plate and fixedly connected with the rotating steel plate and the pressure-bearing steel plate respectively.

[0017] Preferably, the high-damping buffer plate is added with nano clay.

[0018] The pile foundation using the shock-absorbing and buffering device comprises the shock-absorbing and buffering device, an oil pump, a controller, a bracket and a pile body, the shock-absorbing and buffering device is fixedly connected with the top of the bracket, the shock-absorbing and buffering device is connected with the oil pump and the controller respectively, the oil pump is connected with the controller, the bracket is fixedly connected with the side surface of the pile body, and the shock-absorbing and buffering device is the shock-absorbing and buffering device.

[0019] The pile foundation using the shock-absorbing and buffering device has the following advantages and beneficial effects compared with the prior art:

[0020] 1. The high-damping buffer plate can efficiently dissipate vibration energy through viscous deformation, reduce kinetic energy transmitted to the pile body, and improve the hydrolysis resistance and permeability resistance of rubber after adding nano clay. The spiral steel mesh is embedded in the high-damping buffer plate in advance, and the high-damping buffer plate is constrained in two directions to prevent large deformation and tearing of rubber, thereby significantly improving the tensile strength and service life of rubber.

[0021] 2. The high-damping buffer plate is locked with the pressure-bearing steel plate trapezoidal groove of the pressure-bearing steel plate and the rotating steel plate trapezoidal groove of the rotating steel plate, can generate self-locking effect under vertical load, enhance shear capacity, avoid interlayer separation, and allow small horizontal displacement.

[0022] 3. The roller group is arranged on a circular arc track and connected with the rotating steel plate through a bogie, can convert horizontal impact force into rotation to reduce horizontal peak load, can accurately guide the rotation track to avoid deflection instability, and the arrangement of the limiting groove can prevent excessive displacement from causing structure collision.

[0023] 4. The reflective photoelectric sensor can monitor the rotation speed and rotation angle of the rotating steel plate in real time through the reflective sheet, and the rotation speed and rotation angle can be used for early warning or evaluation of damage state.

[0024] 5. The hydraulic jack is embedded in the steel plate body, can provide active jacking force when needed, fix the entire buffer structure, and limit the horizontal rotation of the buffer structure. DETAILED DESCRIPTION

[0025] Figure 1 is a schematic view of the pile foundation using the shock-absorbing and buffering device of the present application;

[0026] Figure 2is an explosion schematic diagram of a shock absorption and buffering device of the present application;

[0027] Figure 3 is an explosion schematic diagram of a pressure bearing steel plate, a high damping buffering plate and a rotating steel plate of a shock absorption and buffering device of the present application;

[0028] Figure 4 is an explosion schematic diagram of a pressure bearing steel plate, a high damping buffering plate and a rotating steel plate of a shock absorption and buffering device of the present application;

[0029] Figure 5 is an explosion schematic diagram of a rotating steel plate, a waterproof elastic frame and a base steel plate of a shock absorption and buffering device of the present application;

[0030] Figure 6 is a schematic diagram of a base steel plate of a shock absorption and buffering device of the present application;

[0031] Markings of components in the drawings: 1 - shock absorption and buffering device; 11 - pressure bearing steel plate; 111 - trapezoidal groove of pressure bearing steel plate; 12 - high damping buffering plate; 121 - trapezoidal rubber protrusion; 122 - longitudinal and transverse spiral steel wire mesh; 13 - rotating steel plate; 131 - trapezoidal groove of rotating steel plate; 132 - reflector; 133 - threaded hole; 14 - waterproof elastic frame; 15 - base steel plate; 151 - limiting groove; 152 - screw; 153 - circular arc track; 154 - circular clamping groove; 1541 - limiting hole; 155 - roller rotating component; 1551 - roller set; 1552 - rotating gripper; 1553 - bogie; 1554 - bogie screw; 156 - reflective photoelectric sensor; 1561 - light source transceiver; 1562 - wire; 157 - hydraulic jack; 1571 - jacking jack; 1572 - oil pipe; 1573 - jack handrail; 2 - corbel; 3 - pile body; 4 - oil pump; 5 - controller. DETAILED DESCRIPTION

[0032] The invention purposes are described in further detail below in combination with the drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation of the present application is not limited to the following embodiments.

[0033] As shown in the drawings, Figure 1 a pile foundation using the shock absorption and buffering device comprises a shock absorption and buffering device 1, a corbel 2 and a pile body 3, an oil pump 4 and a controller 5. The pile body 3 is vertically installed on the ground, and the corbel 2 is fixed on the outer wall of the pile body 3. The shock absorption and buffering device 1 is installed on the top of the corbel 2. The shock absorption and buffering device 1 is connected with the oil pump 4 and the controller 5 respectively, and the oil pump 4 is connected with the controller 5.

[0034] The shock absorption device 1 can solve the vulnerability and inadaptability of the traditional welded bracket 2 when facing horizontal dynamic load, can actively dissipate the input structural vibration and impact energy, significantly reduce the reaction transmitted to the pile body and the far-end structure, avoid the direct impact of the horizontal impact force peak load on the thinnest area of the welded root, reduce the dynamic cycle times of high stress amplitude, and allow the structure to deform controllably under horizontal dynamic load such as earthquake, wind vibration and wave force, to avoid the collapse of the overall structure. The bracket 2 is used to support the vertical load transmitted from the upper structure and safely and effectively transmit it to the pile body. The pile body 3 plays a supporting role. The oil pump 4 is used to pressurize or depressurize the shock absorption device 1. The controller 5 is a computer that receives and analyzes the signals of the reflective photoelectric sensor 156 to determine the rotation speed and rotation angle of the rotating steel plate 13, thereby warning the shock absorption device 1 and the bracket 2 of the pile body 3, and when the controller 5 finds abnormal signals, the controller 5 controls the oil pump 4 to realize the jacking of the hydraulic jack 157 to constrain the rotation of the rotating steel plate 13 and issue a warning.

[0035] As shown in Figures 2 to 6 The shock absorption device 1 includes a buffer structure, a waterproof elastic frame 14 and a base steel plate 15. The buffer structure includes a pressure-bearing steel plate 11, a high-damping buffer plate 12 and a rotating steel plate 13. The bottom of the base steel plate 15 is anchored to the top of the bracket 2 by screws 152, the base steel plate 15 is connected to the oil pump 4 through the oil pipe 1572, and the base steel plate 15 is connected to the controller 5 through the wire 1562. The oil pipe 1572 and the wire 1562 pass through the waterproof elastic frame 14. The oil pump 4 is connected to the controller 5 through the wire 1562. The outer frame of the base steel plate 15 is sealingly connected to the lower end of the waterproof elastic frame 14, and the upper end of the waterproof elastic frame 14 is sealingly connected to the outer periphery of the lower end of the rotating steel plate 13. The bottom of the rotating steel plate 13 is sequentially provided with a jacked part, a rotating part and a reflecting part from the center to the outer periphery, and the jacked part of the base steel plate 15 is connected to the jacked part of the rotating steel plate 13. The rotating part of the rotating steel plate 13 is fixedly connected to the guide part of the base steel plate 15, and the reflecting part of the rotating steel plate 13 is connected to the detection part of the base steel plate 15. The top of the rotating steel plate 13 is locked with the bottom of the high-damping buffer plate 12, and the top of the high-damping buffer plate 12 is locked with the bottom of the pressure-bearing steel plate 11. The jacked part of the base steel plate 15 is connected to the oil pump 4, and the detection part of the base steel plate 15 is connected to the controller 5.

[0036] The buffer structure is used to buffer the impact force, thereby reducing the damage of the impact force to the bracket 2 and the pile body 3. The pressure bearing steel plate 11 is used to weld the external structure and plays a pressure bearing role. The high-damping buffer plate 12 is made of high-damping rubber, which can effectively dissipate vibration energy through viscous deformation, reduce the kinetic energy transmitted to the pile body, and improve the hydrolysis resistance and permeability resistance of the rubber after adding nano clay. The rotating steel plate 13 can rotate when the shock absorbing and buffering device 1 bears the horizontal impact, thereby relieving the horizontal impact force received by the structure. The waterproof elastic frame 14 is made of hydrogenated nitrile rubber, which plays a sealing and waterproof role in the connection between the base steel plate 15 and the rotating steel plate 13. The base steel plate 15 plays a guiding role for the rotation of the rotating steel plate 13 and detects the rotation speed and rotation angle of the rotating steel plate 13, and plays a vertical jacking role for the rotating steel plate 13.

[0037] As Figure 5 and 6As shown, the base steel plate 15 comprises a steel plate body, eight circular arc tracks 153, eight roller rotating parts 155, four reflective photoelectric sensors 156 and a hydraulic jack 157; each roller rotating part 155 comprises a set of roller groups 1551, a rotating gripper 1552, a bogie 1553 and a bogie screw 1554; each reflective photoelectric sensor 156 comprises a light source transceiver 1561 and a wire 1562; the hydraulic jack 157 comprises a jacking jack 1571, a oil pipe 1572 and a jack handle 1573. The top of the steel plate body is provided with a frame, and the top of the frame is sealingly connected with the bottom of the waterproof elastic frame 14. Four frames form a square recess, and a circular clamping groove 154 is arranged at the center of the square recess. The hydraulic jack 157 is installed in the circular clamping groove 154, the jacking jack 1571 is connected with the oil pump 4 through the oil pipe 1572, and the jack handle 1573 is connected with the jacking jack 1571. The circular clamping groove 154 is provided with eight limiting grooves 151 along the circumference thereof, the eight limiting grooves 151 are in a fan-shaped structure, the eight limiting grooves 151 are uniformly distributed, and one rib plate is arranged between two adjacent limiting grooves 151, and there are seven rib plates in total. The bottom of the eight limiting grooves 151 is fixedly connected with the top of the corbel 2 through screws 152, and the eight circular arc tracks 153 are arranged in the eight limiting grooves 151 and located on the inner side of the screws 152. The center of the circular arc track 153, the eight limiting grooves 151 and the center of the circular clamping groove 154 are overlapped. One end of each bogie 1553 is installed on the bottom of the rotating steel plate 13 through the bogie screw 1554. The other end of the bogie 1553 is rotatably connected with the top of the rotating gripper 1552, the lower end of the rotating gripper 1552 is rotatably connected with the roller group 1551, and the roller group 1551 is rotatably connected with the circular arc track 153. Four light source transceivers 1561 are installed on four corners of the square recess and located on the outer side of the eight limiting grooves 151, and one end of each light source transceiver 1561 is connected with the wire 1562. The other end of the wire 1562 penetrates through the waterproof elastic frame 14 through the preset hole and is connected with the controller 5.

[0038] The steel plate body is made of Q345C steel plate material, which is used to install and fix the circular track 153, the light source transceiver 1561 and the jacking jack 1571. The circular track 153 can accurately guide the rotation trajectory and allow the device above the roller group 1551 to move horizontally to some extent, further dispersing the horizontal impact stress. When the shock absorbing and buffering device 1 bears horizontal impact, the rotating steel plate 13 drives the rotating roller part 155 to rotate, thereby relieving the horizontal impact force on the structure. The reflective photoelectric sensor 156 is used to receive the reflected light of the reflective sheet 132, thereby detecting the rotation speed and rotation angle of the rotating steel plate 13 and feeding back to the controller 5. The hydraulic jack 157 is used to jack up the rotating steel plate 13. The tires of the roller group 1551 are made of high-strength rubber, allowing the rotating steel plate 13 to rotate relative to the base steel plate 15. The rotating gripper 1552 is used to install the roller group 1551 at one end of the bogie 1553. The bogie 1553 is used to rotate the rotating gripper 1552 relative to the rotating steel plate 13, thereby allowing the roller group 1551 to move along the circular track 153. The light source transceiver 1561 is used to receive the light reflected back by the reflective sheet 132, and then feed back to the controller 5. The wire 1562 is used to power and transmit signals to the light source transceiver 1561; the jacking jack 1571 is used to jack up or drop the rotating steel plate 13. The oil pipe 1572 can withstand a certain oil pressure and is used to transmit hydraulic oil, thereby realizing the piston action of controlling the jacking jack 1571. The jack handle 1573 is put into the limiting hole 1541 in the circular clamping groove 154, rotates the jacking jack 1571, makes the jack handle 1573 rotate into the circular clamping groove 154, and finally inserts the dense rubber block into the limiting hole 1541 to fix the jacking jack 1571.

[0039] As Figures 3 to 5As shown, the bottom of the pressure steel plate 11 is provided with eleven pressure steel plate trapezoidal grooves 111 perpendicular to the axial direction of the pressure steel plate 11, the eleven pressure steel plate trapezoidal grooves 111 are arranged in sequence and parallel to each other, and the interval between the adjacent two pressure steel plate trapezoidal grooves 111 is the same. The inside of the high-damping buffer plate 12 is embedded with longitudinal and transverse spiral steel wire mesh 122, and 2% mass ratio of nano clay is added. The top surface and the bottom surface of the high-damping buffer plate 12 are respectively provided with eleven rubber trapezoidal protrusions 121 perpendicular to the axial direction of the high-damping buffer plate 12, the eleven rubber trapezoidal protrusions 121 are arranged in sequence and parallel to each other, and the interval between the adjacent two rubber trapezoidal protrusions 121 is the same. The eleven rubber trapezoidal protrusions 121 on the top surface are respectively embedded into the eleven pressure steel plate trapezoidal grooves 111. The top of the rotating steel plate 13 is provided with eleven rotating steel plate trapezoidal grooves 131 perpendicular to the axial direction of the rotating steel plate 13, the eleven rotating steel plate trapezoidal grooves 131 are arranged in sequence and parallel to each other, and the interval between the adjacent two rotating steel plate trapezoidal grooves 131 is the same. The eleven rubber trapezoidal protrusions 121 on the bottom are respectively embedded into the eleven rotating steel plate trapezoidal grooves 131. Eight threaded holes 133 are provided on the bottom of the rotating steel plate 13, the eight threaded holes 133 form a circle, and the bogie screw 1554 of the roller rotating part 155 is installed in the eight threaded holes 133. Four reflecting sheets 132 are respectively provided outside the eight threaded holes 133, and the four reflecting sheets 132 correspond to the light source transceiver 1561 of the four reflective photoelectric sensors 156 one by one.

[0040] The longitudinal and transverse spiral steel wire mesh 122 is used to constrain the rubber in two directions to prevent large deformation tearing. The rubber trapezoidal protrusions 121, the pressure steel plate trapezoidal grooves 111 and the rotating steel plate trapezoidal grooves 131 are used to enhance the shear capacity of the structure to avoid interlayer separation, solve the rubber and steel plate interface slip under large load, and at the same time allow the structure to have a small horizontal displacement under load. The reflecting sheet 132 is made of polished metal sheet and is used to reflect the light emitted by the reflective photoelectric sensor 156.

[0041] The installation process of the pile foundation using the damping and buffering device is as follows:

[0042] Step one, now install four reflective photoelectric sensors 156 and a hydraulic jack 157 on the steel plate body in advance, then install the steel plate body on the top surface of the corbel 2 through the screw 152, connect the hydraulic jack 157 with the oil pump 4, connect the oil pump 4 and the reflective photoelectric sensor 156 with the controller 5, and finally put the eight roller rotating parts 155 into the eight circular arc tracks 153 in sequence.

[0043] Step two, set eleven rotating steel plate trapezoidal grooves 131 on the upper surface of the rotating steel plate 13, then pre-embed four reflective pieces 132 on the outside of the rotating steel plate trapezoidal groove 131, which are respectively one-to-one corresponding to the positions of the light source transceiver 1561 of the four reflective photoelectric sensors 156; the controller 5 controls the piston of the hydraulic jack 157 to lift the rotating steel plate 13 through the oil pump 4, and the bottom eight gyro wheel rotating parts 155 of the rotating steel plate 13 are anchored by the eight gyro wheel rotating parts 155 of the rotating steel plate 13. The bottom eight gyro wheel rotating parts 155 of the rotating steel plate 13 are anchored by the eight gyro wheel rotating parts 155 of the rotating steel plate 13. The controller 5 controls the piston of the hydraulic jack 157 to fall back through the oil pump 4.

[0044] Step three, vulcanize the upper and lower surfaces of the waterproof elastic frame 14, and seal the upper surface of the waterproof elastic frame 14 with the bottom surface of the rotating steel plate 13, and the lower surface of the waterproof elastic frame 14 with the frame of the base steel plate 15. The oil pipe 1572 of the hydraulic jack 157 and the wire 1562 of the reflective photoelectric sensor 156 pass through the preset hole of the waterproof elastic frame 14;

[0045] Step four, embed the longitudinal and transverse spiral steel wire mesh into high-damping rubber to form a high-damping buffer plate 12, and the top and bottom surfaces of the high-damping buffer plate 12 are provided with rubber trapezoidal protrusions 121, and the rubber trapezoidal protrusions 121 on the bottom surface are embedded into the rotating steel plate trapezoidal groove 131 on the top surface of the rotating steel plate 13, so as to realize the mutual locking of the high-damping buffer plate 12 and the rotating steel plate 13;

[0046] Step five, the rubber trapezoidal protrusions 121 on the top surface are embedded into the bearing steel plate trapezoidal groove 111 on the bottom surface of the bearing steel plate 11, so as to realize the mutual locking of the high-damping buffer plate 12 and the bearing steel plate 11;

[0047] Step six, the external structure can be welded with the bearing steel plate 11, and the installation of the pile foundation using the shock-absorbing buffer device is completed;

[0048] Step seven, according to the site environment and construction conditions, the piston of the hydraulic jack 157 is lifted to buffer the structure;

[0049] Step eight, when the controller 5 receives an abnormal light source transceiver 1561, the controller 5 gives an early warning, and automatically operates the oil pump 4 through the controller 5 to lift the piston of the hydraulic jack 157 to lift the rotating steel plate 13, so as to constrain the rotation of the rotating steel plate 13.

[0050] The advantages of the pile foundation using the shock-absorbing buffer device are as follows: the pile foundation using the shock-absorbing buffer device converts the traditional pile foundation from a rigid force transmission point into an intelligent shock-absorbing hub, and has four functions of energy dissipation efficiency, displacement adaptability, state measurability and damage controllability. The pile foundation using the shock-absorbing buffer device can solve the vulnerability and inadaptability of the top surface of the corbel 2 of the traditional welded pile foundation to the horizontal dynamic load, can actively dissipate the input structural vibration and impact energy, can significantly reduce the reaction transmitted to the pile body 3 and the structure far away, can avoid the direct impact of the horizontal impact force peak load on the thinnest area of the welded root, can reduce the dynamic cycle times of the high stress amplitude, and can allow the structure to have controllable deformation under the horizontal dynamic load such as earthquake, wind vibration and wave force, so as to avoid the collapse damage of the overall structure; and can monitor the rotation speed and rotation angle of the shock-absorbing buffer device 1 in real time, and the rotation speed and rotation angle can be used for early warning or evaluation of the damage state.

[0051] The above specific embodiments are preferred embodiments of the present application, and cannot limit the present application, and any changes or other equivalent replacement manners of other technical solutions without departing from the present application are included in the protection scope of the present application.

Claims

1. A shock-absorbing and buffering device, characterized in that: It includes a pressure-bearing steel plate (11), a high-damping buffer plate (12), a rotating steel plate (13), a waterproof elastic frame (14), and a base steel plate (15). The frame of the base steel plate (15) is sealed to the bottom of the rotating steel plate (13) through the waterproof elastic frame (14). The lifting part of the base steel plate (15) is connected to the bottom of the rotating steel plate (13). The top of the rotating steel plate (13) is fixedly connected to the pressure-bearing steel plate (11) through the high-damping buffer plate (12).

2. The shock absorption and buffer device according to claim 1, characterized in that: The base steel plate (15) includes a steel plate body, an arc track (153), a roller rotating component (155), a reflective photoelectric sensor (156), and a hydraulic jack (157). The steel plate body is provided with a frame, and the reflective photoelectric sensor (156) is installed in the frame and corresponds to the rotating steel plate (13). The center of the frame is provided with a circular slot (154), and the hydraulic jack (157) is installed in the circular slot (154). The jack (157) is connected to the middle of the rotating steel plate (13). The circular slot (154) is provided with several limiting slots (151) along its circumference. The arc track (153) is set in several of the limiting slots (151). The center of the arc track (153) overlaps with the center of the circular slot (154). The bottom of the rotating steel plate (13) is rotatably connected to the arc track (153) through the roller rotating component (155).

3. The shock absorption and buffer device according to claim 2, characterized in that: The roller rotating component (155) includes a roller assembly (1551), a rotating gripper (1552), a bogie (1553), and a bogie screw (1554). The roller assembly (1551) is rotatably connected to the arc track (153). The roller assembly (1551) is rotatably connected to one end of the bogie (1553) through the rotating gripper (1552). The other end of the bogie (1553) is connected to the rotating steel plate (13) through the bogie screw (1554).

4. A shock-absorbing and buffering device according to claim 2, characterized in that: The reflective photoelectric sensor (156) includes a light source transceiver (1561) and a wire (1562). The light source transceiver (1561) is installed in the frame and corresponds to the rotating steel plate (13).

5. A shock-absorbing and buffering device according to claim 2, characterized in that: The hydraulic jack (157) includes a lifting jack (1571), an oil pipe (1572), and a jack handle (1573). The lifting jack (1571) is installed in the circular slot (154) through the jack handle (1573). One end of the lifting jack (1571) is connected to the oil pipe (1572), and the other end of the oil pipe (1572) protrudes to the outside through the waterproof elastic frame (14).

6. A shock-absorbing and buffering device according to claim 2, characterized in that: The top of the rotating steel plate (13) is provided with a trapezoidal groove (131), the lower end of the high damping buffer plate (12) is embedded in the trapezoidal groove (131), the bottom of the rotating steel plate (13) is provided with a reflective sheet (132) and a threaded hole (133), the reflective sheet (132) corresponds to the reflective photoelectric sensor (156), and the roller rotating component (155) is installed in the threaded hole (133).

7. A shock-absorbing and buffering device according to claim 1, characterized in that: The pressure-bearing steel plate (11) is provided with a trapezoidal groove (111), and the high-damping buffer plate (12) is embedded in the trapezoidal groove (111).

8. A shock-absorbing and buffering device according to claim 1, characterized in that: The high-damping buffer plate (12) has a longitudinal and transverse spiral steel wire mesh (122) embedded inside. Both sides of the high-damping buffer plate (12) are provided with rubber trapezoidal protrusions (121). The rubber trapezoidal protrusions (121) are fixedly connected to the rotating steel plate (13) and the pressure-bearing steel plate (11) respectively.

9. A shock-absorbing and buffering device according to claim 1, characterized in that: The high-damping buffer plate (12) is made of nano-clay.

10. A pile foundation using a vibration damping and buffer device, characterized in that: The device includes a shock-absorbing buffer device (1), an oil pump (4), a controller (5), a bracket (2), and a pile body (3). The shock-absorbing buffer device (1) is fixedly connected to the top of the bracket (2). The shock-absorbing buffer device (1) is connected to the oil pump (4) and the controller (5) respectively. The oil pump (4) is connected to the controller (5). The bracket (2) is fixedly connected to the side of the pile body (3). The shock-absorbing buffer device (1) is a shock-absorbing buffer device according to any one of claims 1 to 9.

Images