A pipe pile structure

Abstract

The present application relates to a kind of pipe pile structures, comprising: a plurality of sequentially connected pipe piles, pipe pile upper and lower ends are fixedly provided with the end head steel plate connected with prestressed reinforcement;Sacrificial anode assembly includes the sacrificial anode block installed in steel sleeve, provide cathodic protection to prestressed reinforcement and end head steel plate by the corrosion of sacrificial anode block;Sacrificial anode state detection mechanism includes container, alarm module, conducting component and a certain amount of conducting substance, the volume of sacrificial anode block is reduced when import is exposed due to corrosion consumption, so that the conducting substance in container can flow into steel sleeve via channel;When the conducting substance in container reduces to the preset limit mass M, replacement alarm signal is sent after triggering alarm module power-on by conducting component.The present application is based on effectively anticorrosion to pipe pile reinforcement and end head steel plate, corrosion condition of sacrificial anode is monitored by remote, automatic, low cost and accurate, and timely replacement is carried out to ensure anticorrosion effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corrosion protection, in particular to a pipe pile structure, especially a corrosion protection pipe pile with sacrificial anode consumption monitoring function. BACKGROUND

[0002] The steel reinforced concrete member such as the pipe pile is internally provided with corresponding prestressed steel bars, and both end portions are provided with corresponding end steel plates, and through the cooperation of bolt fastening and sealing pad, a plurality of pipe piles are connected, and then the connected pipe piles are driven into the ground by a pile driver.

[0003] However, the prestressed steel bars and the end steel plates on the pipe pile are corroded by the soil environment in the deep ground, which will affect the load and strength of the pipe pile and the stability of the connection between the pipe piles over a long period of time. Therefore, a more preferentially corroded anode is introduced and forced to work, so that the metal structure to be protected is polarized as the cathode in the electrochemical circuit, so that only harmless reduction reaction occurs on the surface, and the metal oxidation dissolution reaction as the corrosion mark is fundamentally inhibited, thereby achieving the effect of corrosion protection.

[0004] However, the sacrificial anode becomes smaller with continuous corrosion, and needs to be replaced in time to ensure that the prestressed steel bars and the end steel plates are always protected, but because the soil environment of the installation position of the pipe pile is different, the corrosion degree of the sacrificial anode is different, and personnel need to frequently check the corrosion condition of the sacrificial anode and replace the new sacrificial anode in time. However, such inspection is time-consuming and labor-intensive, and the work load is very large, the detection accuracy is not accurate enough, the cost is high, the cycle is long, and the state cannot be grasped in real time.

[0005] Therefore, the research purpose of the present application is to design a pipe pile steel bar and end steel plate corrosion protection device which can effectively prevent corrosion of the pipe pile steel bar and the end steel plate, and can remotely, automatically, accurately and low-cost monitor the corrosion condition of the sacrificial anode to replace it in time to ensure the corrosion protection effect. SUMMARY

[0006] In view of the technical problems existing in the prior art, the present application provides a pipe pile structure, which can effectively solve the technical problems existing in the prior art.

[0007] The technical scheme of the present application is as follows:

[0008] A pipe pile structure comprises:

[0009] A plurality of sequentially connected pipe piles, prestressed steel bars are arranged in the pipe piles, end head steel plates connected with the prestressed steel bars are fixedly arranged at the end of the pipe piles, the butt joint gaps of the end head steel plates are closed by welding after the upper and lower pipe piles are connected, and a welding layer is formed; the pipe pile structure further comprises an anti-corrosion system, the anti-corrosion system comprises:

[0010] A sacrificial anode assembly is electrically connected with the prestressed steel bars in the pipe piles at the top through the conductive steel bars, the sacrificial anode assembly comprises a steel sleeve arranged at a distance on the pipe pile and a sacrificial anode block detachably arranged in the steel sleeve, and the sacrificial anode block is used for providing cathodic protection for the prestressed steel bars and the end head steel plate;

[0011] A sacrificial anode state detection mechanism comprises a container, an alarm module, a conduction assembly and a certain amount of conduction objects, the container is connected with the internal space of the steel sleeve through a channel, and the inlet of the channel on the steel sleeve is blocked by the sacrificial anode block in the initial state; when the sacrificial anode block is reduced in volume due to corrosion consumption, so that the inlet on the steel sleeve is exposed, the conduction objects in the container can flow into the steel sleeve through the channel; the conduction assembly is arranged in the container and is used for triggering the alarm module to send a replacement alarm signal after being powered on when the conduction objects in the container are reduced to a preset limited mass M.

[0012] The conduction assembly comprises a float orientedly arranged on the conduction objects in the vertical direction and a swing member resettable hingedly mounted on the top of the container, a pulling member is connected between the float and the swing member, and a driving member is fixedly arranged at one end of the swing member away from the pulling member;

[0013] The alarm module comprises a circuit control board mounted on the top of the container and corresponding to the position of the driving member, and a trigger switch, a lithium battery and a signal transmitter electrically connected with the circuit control board;

[0014] When the sacrificial anode block is reduced in volume due to corrosion, and the conduction objects are transported into the steel sleeve, so that the float moves downward to a set position, the pulling member exerts a downward pulling force on the swing member, drives the swing member to rotate around the hinge point, and moves the driving member upward to trigger the trigger switch, so that the lithium battery supplies power to the circuit control board and generates a control signal, and the circuit control board receives the control signal to control the signal transmitter to send an alarm signal to a receiving end.

[0015] The container top is provided with a hinged seat, the swing member is rotatably installed on the hinged seat, and the container top is provided with an elastic member between the hinged seat and the driving member, and the two ends of the elastic member are connected with the top of the container and the swing member respectively; the length of the swing member on the side provided with the driving member is greater than the length of the side provided with the pulling member;

[0016] When the container is filled with the conducting object, the floating body moves upward, the driving member is reset downward under the action of the lever center of gravity of the swing member and / or the reset elastic potential energy of the elastic member, the container is provided with a directional rod, the floating body is movably arranged on the directional rod through a corresponding hole, and the top of the container is provided with a feed inlet which is opened and closed by a corresponding screw cap.

[0017] The conducting object is made of powdery or granular metal or is an electrolyte, and when the conducting object is the electrolyte, the bottom of the steel sleeve is provided in a sealed bottom shape.

[0018] The sacrificial anode block is detachably connected with the steel sleeve through threaded connection, the top of the steel sleeve is provided with a convex edge, the top of the sacrificial anode block is fixedly installed below the sleeve cover through a corresponding countersunk bolt, and after the sacrificial anode block is installed in the steel sleeve, the sleeve cover and the convex edge are sealed and locked by a water stop rubber ring and a bolt.

[0019] The end steel plate of the topmost pipe pile is truncated to expose the prestressed steel bar, one end of the conducting steel bar is welded with the steel sleeve, and the other end is provided with two parallel branches, and the two branches are welded with the exposed prestressed steel bar and the truncated end steel plate respectively.

[0020] The pipe pile structure further comprises a linking mechanism for improving the uniformity of the butt contact of the end steel plates on the upper and lower pipe piles, the opposite sides of the end steel plate at the bottom of the upper pipe pile and the end steel plate at the top of the lower pipe pile are concave and provided with embedded grooves, and when the upper and lower pipe piles are linked, the embedded grooves on the upper and lower pipe piles are butted in the longitudinal section to form a flat 8-shaped structure.

[0021] The linking mechanism comprises a ring-shaped ring with a vertical 8-shaped structure in the longitudinal section and the same cross-sectional area as the two butted embedded grooves, the ring-shaped ring is made of an elastic metal that can adaptively deform, two upper and lower cavities isolated from each other are arranged in the ring-shaped ring, and the cavities are filled with damping materials; after the two pipe piles are linked, the linking mechanism is adaptively deformed to fill and connect the embedded grooves on the upper and lower pipe piles.

[0022] The embedded grooves are arranged adjacent to the welding layer, and the damping material is uniformly mixed by spherical damping particles made of metal materials and extruded rubber particles; the sealing gasket arranged between the upper and lower pipe piles is installed on the inner side of the linking mechanism.

[0023] The two adjacent pipe piles are provided with a pulling pair locking mechanism for forming rigid connection between the two pipe piles, the pulling pair locking mechanism comprises a plurality of pulling holes arranged on the end plate at the top of the lower pipe pile in a circular array, and a plurality of pulling assemblies fixed on the end plate at the bottom of the upper pipe pile corresponding to the pulling holes one by one.

[0024] The pulling assembly comprises a base column matched with the size of the pulling hole and a plurality of pulling blocks arranged on the outer end of the base column in a circular array; the lower aperture of the pulling hole gradually increases, and a guide table is fixed at the center of the pulling hole, the guide table comprises a cylindrical part and a circular table part integrally arranged, the outer side wall of the guide table is arranged in parallel with the inner side wall of the corresponding pulling hole to form a corresponding guide groove, and the width of the guide groove is matched with the thickness of the pulling block; when the two pipe piles are connected, the pulling assembly is embedded in the guide groove, and the pulling block is opened to the surrounding along the bottom slope of the guide groove and is clamped in the guide groove.

[0025] The top of the cylindrical part is inwardly recessed to form a spherical positioning groove, and a positioning ball matched with the positioning groove is fixed at the center of the pulling assembly on the end plate at the bottom of the upper pipe pile; the top of the cylindrical part is divided into a plurality of locking blocks by a radial cutting groove arranged in a circular array, and the inner side wall of the pulling block is inwardly recessed to form a limiting groove below the positioning ball; when the two pipe piles are connected, the locking blocks are opened to the surrounding under the guidance of the positioning ball and are clamped into the limiting groove, so that the end plate at the bottom of the upper pipe pile and the end plate at the top of the lower pipe pile are connected by the pulling pair locking mechanism.

[0026] Advantages of the present application:

[0027] 1) The present application further adds a corrosion prevention system in the pipe pile structure, which provides continuous cathodic protection for the prestressed steel bars and end steel plates by sacrificing anode blocks, significantly prolongs the service life of the pipe pile in a corrosive environment, and automatically alarms by real-time monitoring of the consumption of the sacrificial anode blocks through the added sacrificial anode state detection mechanism. Specifically, a channel is used to connect a container filled with a certain amount of conductive material and a steel sleeve. In the initial state, the sacrificial anode block is used as a temporary plug to block the inlet on the steel sleeve. As the sacrificial anode block is consumed by corrosion, its volume decreases, causing the inlet on the steel sleeve to be exposed. The conductive material can automatically flow into the steel sleeve through the inlet to fill the gap between the steel sleeve and the sacrificial anode. When the conductive material in the container is reduced to a preset limit mass M, the replacement alarm signal is sent by the alarm module after the circuit is energized, realizing the measurement of the corrosion of the sacrificial anode by the amount of material, achieving quantification, and further facilitating personnel to replace the new sacrificial anode block in time. The present application combines the physical process of volume equivalent replacement and mechanical linkage driving to convert the abstract concept of the corrosion amount of the sacrificial anode into a measurable and explicit alarm trigger signal, realizing remote, automatic, low-cost and accurate monitoring of the corrosion state of the buried sacrificial anode, further ensuring the effective corrosion prevention of the pipe pile steel bars and end steel plates.

[0028] 2) Since the installation scene of the sacrificial anode assembly cannot provide power supply for the circuit, the lithium battery is used for a long time to supply power for the electronic detection of the alarm mechanism, and the durability of the lithium battery will cause new problems, which requires frequent replacement of the lithium battery. Therefore, the present application utilizes the reduction of the conductive material and the combination of the conductive assembly to trigger the connection power supply of the lithium battery in the alarm mechanism. Specifically, the reduction of the conductive material causes the float to move downward to drive the swing member to rotate, and then drive the driving member on the swing member to move upward to press the trigger switch, so that the lithium battery in the alarm module is connected to the circuit control board and sends a control signal. When the circuit control board receives the control signal, it sends an alarm signal to the receiving end through the signal transmitter. When the corrosion degree is not reached, the lithium battery does not supply power to the circuit control board, which can maximize the service life of the lithium battery and further improve the practical effect of the present application.

[0029] 3) The present application further sets the sacrificial anode assembly as a steel sleeve and a sacrificial anode block that can be detached by screwing, so as to quickly and timely replace the sacrificial anode block to ensure the corrosion prevention effect. The water stop rubber ring is locked and connected between the sleeve cover and the convex edge, the first steel water stop ring and the second steel water stop ring are welded or integrally formed on the outer side of the steel sleeve in an upper and lower interval, and the water stop ring is provided outside the sacrificial anode block. The sacrificial anode block is waterproofed by multiple measures to ensure the use of the sacrificial anode and the practical effect of the present application.

[0030] 4) On the basis of ensuring the stability of the pipe pile connection and the connection of the sacrificial anode for corrosion protection, the application further provides a connection mechanism, an annular ring with a vertical 8-shaped structure in longitudinal section is embedded in the embedded groove on the end plate at the top of the lower pipe pile, the cross-sectional area of the annular ring is the same as that of the two embedded grooves after butt joint, after the upper pipe pile is installed in place, the annular ring is pressed and fitted under the action of gravity, so that it is adaptively deformed to fill the upper and lower embedded grooves, and the connection area between the two cavities of the annular ring increases after being pressed and deformed, so as to increase the connection surface of the upper and lower end plates, on the basis of the connection of the lock bolt, the connection of the upper and lower end plates is ensured through the connection mechanism, so that the upper and lower end plates are in better contact, the uniformity of the connection is improved to ensure the conductivity, and then the corrosion protection effect is ensured.

[0031] 5) After the upper and lower pipe piles are connected through the lock bolt, welding is performed at the gap, and then pile driving is performed, but pile driving will cause stress concentration, resulting in fracture of the welding and connection failure, therefore, the application further provides that the annular ring is arranged adjacent to the welding layer, and the annular ring is provided with two cavities in different communication, and the cavities are filled with a mixture of spherical damping particles made of metal material and rubber particles, the damping particles made of metal material can further ensure the conductivity of the annular ring, and under the friction and energy dissipation between the damping particles, the vibration transmitted through the end plate during pile driving is effectively weakened, so that the stress generated by pile driving is applied to the welding layer, and the phenomenon of fracture of the welding layer is effectively avoided or reduced; in addition, the rubber particles are mixed with the metal damping particles in a squeezed state, the long-chain molecular structure of the rubber and the weak secondary force between the molecules make the rubber particles have unique viscoelastic properties, the viscoelastic properties can achieve good damping effect, and the rubber particles also have good resilience, and the damping particles are easily rubbed by multiple pile driving, so that the damping particles are in a jumping state at the bottom, so that a gap is formed between the damping particles and the annular cavity, however, the resilience of the rubber particles can ensure that the damping material always fills the entire cavity, and the damping effect is effectively ensured.

[0032] 6) The pipe pile butt joint mainly relies on welding, and the welding quality is greatly affected by human and environmental factors, and under dynamic load, the welding seam is easy to become a weak point of fatigue. The application utilizes the pulling and locking mechanism to form a connection between the upper and lower pipe piles, the pulling block is opened and clamped in the guide groove along the bottom slope of the guide groove, and the locking block is opened and clamped into the limiting groove through the guidance of the positioning ball, so that the end plate at the bottom of the upper pipe pile and the end plate at the top of the lower pipe pile form a pulling and locking connection, and then the upper and lower pipe piles form a rigidly connected whole. When pile driving, the vibration of the upper and lower pipe piles is transmitted in the same direction, so as to not affect the welding seam, effectively prevent the welding seam from being cracked due to beating, and assist in promoting the corrosion protection of the end plate and the reinforcing bar. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the present application.

[0034] Figure 2 is a sectional structural schematic diagram of the sacrificial anode assembly.

[0035] Figure 3 is a connection schematic diagram of the sacrificial anode assembly and the sacrificial anode state detection mechanism.

[0036] Figure 4 is a sectional schematic diagram of the sacrificial anode state detection mechanism.

[0037] Figure 5 is an enlarged schematic diagram of part A in Figure 1 is an enlarged schematic diagram of part B in

[0038] Figure 6 is a sectional schematic diagram of the annular ring in Figure 5

[0039] is a state schematic diagram of the connecting mechanism in Figure 7

[0040] Figure 8 is an enlarged schematic diagram of part B in Figure 7

[0041] Figure 9 is an installation schematic diagram of the guide post of the pulling pair locking mechanism in

[0042] Figure 10 is a sectional schematic diagram of Figure 9

[0043] Figure 11 is an enlarged schematic diagram of part C in Figure 10

[0044] is an installation schematic diagram of the pulling assembly of the pulling pair locking mechanism in Figure 12

[0045] Figure 13 is a sectional schematic diagram of Figure 12

[0046] Figure 14 is an enlarged schematic diagram of part D in Figure 13

[0047] ​​​​​​In the drawings: pipe pile 1, prestressed steel bar 101, end steel plate 102, welding layer 2, sacrificial anode assembly 3, conductive steel bar 301, steel sleeve 302, sacrificial anode block 303, sleeve cover 304, first steel water stop ring 305, second steel water stop ring 306, water-swelling water stop ring 307, water stop rubber ring 308, sacrificial anode state detection mechanism 4, alarm module 401, circuit control board 4011, trigger switch 4012, lithium battery 4013, signal transmitter 4014, conduction assembly 402, float 4021, swing piece 4022, pulling piece 4023, driving piece 4024, hinged seat 4025, elastic piece 4026, directional rod 4027, feed port 4028, conduction object 403, container 404, channel 405, linking mechanism 5, embedded groove 501, annular ring 502, damping material 503, pulling pair of lock mechanisms 6, pulling hole 601, pulling assembly 602, base column 6021, pulling block 6022, positioning ball piece 6023, limiting groove 6024, guide table 603, cylindrical part 6031, circular table part 6032, positioning groove 6033, pair of lock blocks 6034, cushion layer 7, bearing platform 8. DETAILED DESCRIPTION

[0048] For the convenience of those skilled in the art to understand, the structure of the present application will be further described in detail in combination with the drawings:

[0049] Example one

[0050] Reference Figures 1-4 A pipe pile structure, comprising:

[0051] A plurality of sequentially connected pipe piles 1, the pipe pile 1 is provided with a prestressed steel bar 101, the end of the pipe pile 1 is fixedly provided with an end steel plate 102 connected with the prestressed steel bar 101, and the butt joint gap of the end steel plates 102 of the upper and lower pipe piles 1 after linking is closed by welding and forms a welding layer 2; the pipe pile structure further comprises an anti-corrosion system, the anti-corrosion system comprising:

[0052] A sacrificial anode assembly 3, which is electrically connected with the prestressed steel bar 101 in the pipe pile 1 at the top through a conductive steel bar 301, the sacrificial anode assembly 3 comprises a steel sleeve 302 arranged at a distance on the pipe pile 1 and a sacrificial anode block 303 detachably accommodated in the steel sleeve 302, the sacrificial anode block 303 is used to provide cathodic protection for the prestressed steel bar 101 and the end steel plate 102;

[0053] The sacrificial anode state detection mechanism 4 comprises a container 404, an alarm module 401, a conduction assembly 402 and a certain amount of conduction material 403, the container 404 is connected with the internal space of the steel sleeve 302 through a channel 405, and the inlet of the channel 405 on the steel sleeve 302 is blocked by the sacrificial anode block 303 in the initial state; when the sacrificial anode block 303 is reduced in volume due to corrosion consumption, so that the inlet on the steel sleeve is exposed, the conduction material 403 in the container 404 can flow into the steel sleeve 302 through the channel 405; the conduction assembly 402 is arranged in the container 404, and when the conduction material 403 in the container 404 is reduced to a preset limited mass M, the alarm module 401 is triggered to send a replacement alarm signal after being powered on.

[0054] The present application further adds a corrosion prevention system in the pipe pile structure, which provides continuous cathodic protection for the prestressed steel bar 101 and the end steel plate 102 through the sacrificial anode block 303, significantly prolongs the service life of the pipe pile in the corrosion environment, and automatically alarms through the sacrificial anode state detection mechanism 4 for real-time monitoring of the consumption of the sacrificial anode block 303. Specifically, the channel 405 is used to connect the container 404 filled with a certain amount of conduction material 403 and the steel sleeve 302, and the sacrificial anode block 303 is used as a temporary block of the channel 405 to block the inlet of the steel sleeve 302 in the initial state. When the sacrificial anode block 303 is reduced in volume due to corrosion consumption, so that the inlet on the steel sleeve 302 is exposed, the conduction material 403 can automatically flow into the steel sleeve 302 through the inlet to fill the gap between the steel sleeve 302 and the sacrificial anode. When the conduction material 403 in the container is reduced to a preset limited mass M, the alarm module 401 is triggered to send a replacement alarm signal after being powered on through the conduction assembly 402, realizing the measurement of the corrosion of the sacrificial anode by the material, achieving quantification, and then facilitating personnel to timely understand the corrosion of the sacrificial anode block 303 and replace the new sacrificial anode block 303. The present application combines the physical process of volume equivalent replacement and mechanical linkage driving to convert the abstract concept of the corrosion amount of the sacrificial anode into a measurable and explicit alarm trigger signal, realizes remote, automatic, low-cost and accurate monitoring of the corrosion state of the buried sacrificial anode, and further ensures the effective corrosion prevention of the pipe pile 1 steel bar and the end steel plate 102.

[0055] The conduction assembly 402 comprises a float 4021 oriented and moving in the vertical direction arranged on the conduction material 403 and a swing piece 4022 resettable hinged and arranged on the top of the container 404, a pulling piece 4023 is connected between the float 4021 and the swing piece 4022, and a driving piece 4024 is fixedly arranged at one end of the swing piece 4022 away from the pulling piece 4023.

[0056] The alarm module 401 comprises a circuit control board 4011 installed on the top of the container 404 and corresponding to the position of the driving member 4024, a trigger switch 4012, a lithium battery 4013 and a signal transmitter 4014 electrically connected with the circuit control board 4011.

[0057] When the sacrificial anode block 303 is reduced in volume due to corrosion and the conducting object 403 is delivered into the steel sleeve 302, so that the float 4021 moves downward to a set position, the pulling member 4023 exerts a downward pulling force on the swing member 4022, drives the swing member 4022 to rotate around the hinge point, and makes the driving member 4024 move upward to trigger the trigger switch 4012, so that the lithium battery 4013 supplies power to the circuit control board 4011 and generates a control signal, and the circuit control board 4011 controls the signal transmitter 4014 to send an alarm signal to the receiving end after receiving the control signal.

[0058] The top of the container 404 is provided with a hinge seat 4025, the swing member 4022 is rotatably installed on the hinge seat 4025, and the top of the container 404 is further provided with an elastic member 4026 between the hinge seat 4025 and the driving member 4024, and the two ends of the elastic member 4026 are connected with the top of the container 404 and the swing member 4022 respectively; the length of the swing member 4022 on the side of the driving member 4024 is greater than the length of the swing member 4022 on the side of the pulling member 4023.

[0059] When the container 404 is filled with the conducting object 403 so that the float 4021 moves upward, the driving member 4024 can reset downward under the action of the lever center of gravity of the swing member 4022 and / or the reset elastic potential energy of the elastic member 4026; the container 404 is provided with a directional rod 4027, the float 4021 is movably arranged on the directional rod 4027 through a corresponding hole, and the top of the container 404 is provided with a feed inlet 4028 which is opened and closed by a corresponding screw cap.

[0060] The mass of the conducting object 403 can fill the entire empty container 404, the conducting object 403 is made of powdery or granular metal or electrolyte, and when the conducting object 403 is electrolyte, the bottom of the steel sleeve 302 is provided in a closed bottom shape. The container 404 is arranged on the upper side of the steel sleeve 302, the inlet of the connecting channel 405 is arranged on the lower side of the threads of the steel sleeve 302, and the outlet of the connecting channel 405 is arranged on the lower side of the container 404, so that the conducting object 403 in the container 404 can be automatically guided into the steel sleeve 302 under the action of gravity.

[0061] Since the scene where the sacrificial anode assembly 3 is installed cannot provide power supply for the circuit, and the lithium battery 4013 is used for a long time to supply power for the electronic detection of the alarm mechanism, the durability of the lithium battery 4013 will cause new problems, and the lithium battery needs to be replaced frequently, therefore, the application utilizes the reduction of the on-off object 403 and the combination of the on-off assembly 402 to trigger the connection power supply of the lithium battery 4013 in the alarm mechanism, specifically, the reduction of the on-off object 403 makes the float 4021 move downward to drive the swing member 4022 to rotate, and then drive the driving member 4024 on the swing member 4022 to move upward to press and trigger the switch 4012, so that the lithium battery 4013 in the alarm module 401 is connected to the circuit control panel 4011 to supply power and send a control signal, when the circuit control panel 4011 receives the control signal, the signal transmitter 4014 sends an alarm signal to the receiving end, when the corrosion degree has not been reached, the lithium battery 4013 does not supply power to the circuit control panel 4011, which can maximize the service life of the lithium battery 4013, and further improve the practical effect of the application.

[0062] The sacrificial anode block 303 is detachably connected with the steel sleeve 302 in a threaded screwing manner, the top of the steel sleeve 302 is provided with a convex edge, and the top of the sacrificial anode block 303 is fixedly installed below the sleeve cover 304 through corresponding countersunk bolts, after the sacrificial anode block 303 is installed in the steel sleeve 302, the sleeve cover 304 and the convex edge are sealed and locked through the water stop rubber ring and the bolts.

[0063] The end steel plate 102 on the topmost pipe pile 1 is truncated to expose the prestressed steel bar 101, one end of the conductive steel bar 301 is welded with the steel sleeve 302, and the other end is provided with two parallel branches, and the two branches are respectively welded with the exposed prestressed steel bar 101 and the truncated end steel plate 102.

[0064] The outer side of the steel sleeve 302 is provided with a first steel water stop ring 305 and a second steel water stop ring 306 which are welded or integrally formed; the outer side of the sacrificial anode block 303 is concave and provided with an embedded groove, and a water-swelling water stop ring 307 is detachably embedded in the embedded groove, and the water-swelling water stop ring 307 is arranged between the first steel water stop ring 305 and the second steel water stop ring 306.

[0065] The sacrificial anode assembly 3 is transversely and spacedly arranged with the pipe pile 1, and the steel sleeve 302 thereof is pre-buried in the cushion layer 7 and the pile cap 8 (or the bottom plate), and the sleeve cover 304 and the sacrificial anode state detection mechanism 4 are arranged above the pile cap 8 (or the bottom plate).

[0066] The application further sets the sacrificial anode assembly 3 as a detachable steel sleeve 302 and a sacrificial anode block 303 through threaded connection, so as to replace the sacrificial anode block 303 quickly and timely, and ensure the corrosion prevention effect. The sleeve cover 304 and the convex edge are locked and connected to lock the water stop rubber ring 308, the first steel water stop ring 305 and the second steel water stop ring 306 are welded or integrally formed on the outer side of the steel sleeve 302, and the water expansion water stop ring 307 is sleeved on the sacrificial anode block 303, so that the sacrificial anode block 303 is waterproofed through multiple measures, and the use of the sacrificial anode block 303 and the practical effect of the application are ensured.

[0067] Embodiment two

[0068] Reference Figures 5-8 The difference between the embodiment and the embodiment one is that the pipe pile structure further comprises a connecting mechanism 5 for improving the uniformity of the butt joint contact of the end steel plates 102 on the upper and lower pipe piles 1, the opposite sides of the end steel plate 102 at the bottom of the upper pipe pile 1 and the end steel plate 102 at the top of the lower pipe pile 1 are both concave and provided with embedded grooves 501, and the upper and lower embedded grooves 501 are butted in a flat 8-shaped structure in the longitudinal section when the upper and lower pipe piles 1 are connected.

[0069] The connecting mechanism 5 comprises a ring-shaped ring 502 in a vertical 8-shaped structure in the longitudinal section and having the same cross-sectional area as the two butted embedded grooves 501, the ring-shaped ring 502 is made of an elastic metal that can adaptively deform, two cavities isolated from each other are arranged in the ring-shaped ring 502, and the cavities are filled with damping materials 503; after the two pipe piles 1 are connected, the connecting mechanism 5 adaptively deforms to fill the upper and lower embedded grooves 501.

[0070] On the basis of ensuring the stability of the pipe pile 1 connection and the corrosion prevention of the connected sacrificial anode, the application further provides the connecting mechanism 5, the ring-shaped ring 502 in a vertical 8-shaped structure in the longitudinal section is embedded in the embedded groove 501 on the end steel plate 102 at the top of the lower pipe pile 1, the cross-sectional area of the ring-shaped ring 502 is the same as that of the two embedded grooves 501 after butt joint, the ring-shaped ring 502 is pressed and combined under the action of gravity after the upper pipe pile 1 is installed in place, so as to adaptively deform and fill the upper and lower embedded grooves 501, and the connecting area between the two cavities of the ring-shaped ring 502 increases after the ring-shaped ring 502 is pressed and deformed, so as to increase the connecting surface of the upper and lower end steel plates 102, ensure the connection of the upper and lower end steel plates 102 on the basis of the lock bolt connection, make the upper and lower end steel plates 102 contact better, improve the connection uniformity to ensure the conductivity, and further ensure the corrosion prevention effect.

[0071] The embedded groove 501 is arranged adjacent to the welding layer 2, and the damping material 503 is composed of uniformly mixed spherical damping particles made of metal material and rubber particles filled in an extruded state.

[0072] After the upper and lower pipe piles 1 are connected by the locking bolts, the gap is welded and closed, and then the piles are driven, but the driving of the piles may cause stress concentration, resulting in fracture of the welding and connection failure, therefore, the annular ring 502 is arranged adjacent to the welding layer 2, and two cavities in the annular ring 502 are in different communication, and the cavities are filled with a mixture of spherical damping particles made of metal material and rubber particles, the damping particles made of metal material can further ensure the electrical conductivity of the annular ring 502, and the damping particles can effectively weaken the vibration transmitted through the end plate 102 during the driving of the piles, so as to reduce the stress generated by the driving of the piles on the welding layer 2, and effectively avoid or reduce the fracture of the welding layer 2; in addition, the rubber particles are mixed with the metal damping particles in an extruded state, the long-chain molecular structure of the rubber and the weak secondary force between the molecules make the rubber have unique viscoelastic properties, and the viscoelastic properties can achieve good damping effect, and the rubber also has good resilience, and the damping particles are easily rubbed during multiple pile driving, so that the damping particles are in a jumping state at the bottom, so that a gap is generated between the damping particles and the annular cavity, however, the resilience of the rubber particles can ensure that the damping material 503 is always filled in the entire cavity, and the damping effect is effectively ensured.

[0073] It should be pointed out that the implementation principle and the technical effects of the embodiment are the same as those of the first embodiment, and for brief description, the embodiment is not mentioned, and the corresponding content in the first embodiment can be referred to.

[0074] Embodiment three

[0075] Reference Figures 9-14 The difference between the embodiment and the first embodiment is that a pulling locking mechanism 6 for forming a rigid connection between the upper and lower pipe piles 1 is arranged between the two adjacent pipe piles 1, the pulling locking mechanism 6 comprises a plurality of pulling holes 601 arranged on the end plate 102 at the top of the lower pipe pile 1 in an annular array, and a plurality of pulling assemblies 602 fixed on the end plate 102 at the bottom of the upper pipe pile 1 in one-to-one correspondence with the pulling holes 601.

[0076] The pulling assembly 602 comprises a base column 6021 matched with the size of the pulling hole 601 and a plurality of pulling blocks 6022 fixed at the outer end of the base column 6021 in a circular array; the lower aperture of the pulling hole 601 gradually increases, and a guide table 603 is fixed at the center thereof, the guide table 603 comprises a cylindrical part 6031 and a circular table part 6032 integrally arranged in an up-down manner, the outer sidewall of the guide table 603 is arranged in parallel with the inner sidewall of the corresponding pulling hole 601 to form a corresponding guide groove, the width of the guide groove is matched with the thickness of the pulling block 6022; when the two pipe piles 1 are connected in an up-down manner, the pulling assembly 602 is embedded in the guide groove, and the pulling block 6022 is spreaded around along the bottom inclined surface of the guide groove and clamped in the guide groove.

[0077] The top of the cylindrical part 6031 is inwardly recessed to be provided with a positioning groove 6033 in a spherical shape, and the end head steel plate 102 on the bottom of the upper pipe pile 1 is fixedly provided with a positioning ball 6023 at the center of the pulling assembly 602, which is matched with the positioning groove 6033; the top of the cylindrical part 6031 is divided into a plurality of locking blocks 6034 by a plurality of cutting grooves arranged in a circular array and in a radial direction, and the inner sidewall of the pulling block 6022 is inwardly recessed below the positioning ball 6023 to be provided with a limiting groove 6024; when the two pipe piles 1 are connected in an up-down manner, the locking blocks 6034 are spreaded around and clamped into the limiting groove 6024 through the guidance of the positioning ball 6023, so that the end head steel plate 102 on the bottom of the upper pipe pile 1 and the end head steel plate 102 on the top of the lower pipe pile 1 form a pulling locking connection.

[0078] The top of the cylindrical part is provided with a chamfer, and the locking blocks and the pulling blocks are staggered arranged.

[0079] Traditionally, the corresponding bolts are inserted into the top end steel plates of the upper and lower pipe piles, then the upper pipe pile is placed above the lower pipe pile, and the upper and lower pipe piles are fastened through the butt joint of the bolts, the connection between the upper and lower pipe piles is non-rigid, and the rigid connection is only realized through the welding seam layer of the peripheral edge of the end steel plates, in the process of multiple pile driving, the vibration of the upper pipe pile is transmitted to the lower pipe pile, and the vibration of the lower pipe pile is transmitted to the upper pipe pile, and the vibrations are in opposite directions, thereby the upper and lower pipe piles are easily deviated in opposite directions, the welding seam is easily broken to generate a gap, and then the substances and water in the soil enter the gap to corrode the end steel plates.

[0080] The butt joint of the pipe pile 1 mainly depends on welding, the welding quality is greatly influenced by human and environmental factors, and under the dynamic load, the weld is easy to become a fatigue weak point. The present application utilizes the pulling pair locking mechanism 6 to form a link when the upper and lower pipe piles 1, the pulling block 6022 is opened to the four around along the bottom slope of the guide groove and is clamped in the guide groove, and the locking block 6034 is opened to the four around through the guide of the positioning ball piece 6023 and is clamped into the limiting groove 6024, so that the end steel plate 102 at the bottom of the upper pipe pile 1 and the end steel plate 102 at the top of the lower pipe pile 1 form a pulling pair locking connection, and then the upper and lower pipe piles 1 form a rigidly connected whole. When driving, the vibration of the upper and lower pipe piles 1 is transmitted in the same direction, and then the welding seam is not affected, the welding seam is effectively prevented from being cracked due to beating, and the corrosion prevention of the end steel plate 102 and the reinforcing steel bar is assisted and promoted.

[0081] It should be pointed out that the implementation principle and the technical effects of the embodiment and the first embodiment are the same, for the sake of brief description, the embodiment is not mentioned, and the corresponding content in the first embodiment can be referred to.

[0082] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A pipe pile structure, characterized in that, include: Multiple pipe piles (1) are connected in sequence. Each pipe pile (1) contains prestressed steel bars (101). Each pipe pile (1) has an end plate (102) fixedly installed at its end, connected to the prestressed steel bars (101). After two pipe piles (1) are connected, the joint between their end plates (102) is sealed by welding to form a welded layer (2). The pipe pile structure also includes an anti-corrosion system, which includes: The sacrificial anode assembly (3) is electrically connected to the prestressed steel bars (101) in the top pipe pile (1) via conductive steel bars (301). The sacrificial anode assembly (3) includes a steel sleeve (302) spaced on the pipe pile (1) and a sacrificial anode block (303) detachably housed in the steel sleeve (302). The sacrificial anode block (303) is used to provide cathodic protection for the prestressed steel bars (101) and the end plate (102). The sacrificial anode condition detection mechanism (4) includes a container (404), an alarm module (401), a conductive component (402), and a certain amount of conductive material (403). The container (404) is connected to the internal space of the steel sleeve (302) through a channel (405), and the inlet of the channel (405) on the steel sleeve (302) is initially blocked by the sacrificial anode block (303). When the sacrificial anode block (303) is reduced in volume due to corrosion, exposing the inlet on the steel sleeve (302), the conductive material (403) in the container (404) can flow into the steel sleeve (302) through the channel (405). The conductive component (402) is disposed in the container (404) and is used to trigger the alarm module (401) to be energized and issue a replacement alarm signal when the conductive material (403) in the container (404) is reduced to a preset limited mass M.

2. The pipe pile structure according to claim 1, characterized in that, The guiding assembly (402) includes a float (4021) that is directionally movable on the guiding object (403) in a vertical direction and a swing member (4022) that is repositionably hinged to the top of the container (404). A pulling member (4023) is connected between the float (4021) and the swing member (4022). A driving member (4024) is fixedly provided at one end of the swing member (4022) away from the pulling member (4023). The alarm module (401) includes a circuit control board (4011) mounted on top of the container (404) and corresponding to the position of the drive (4024), as well as a trigger switch (4012), a lithium battery (4013), and a signal transmitter (4014) electrically connected to the circuit control board (4011). When the sacrificial anode block (303) decreases in volume due to corrosion, and the conductor (403) is conveyed into the steel sleeve (302), causing the float (4021) to move downward to the set position, the pulling member (4023) applies a downward pulling force to the swing member (4022), causing the swing member (4022) to rotate around the hinge point, and causing the driving member (4024) to move upward to trigger the trigger switch (4012), thereby causing the lithium battery (4013) to supply power to the circuit control board (4011) and generate a control signal. After receiving the control signal, the circuit control board (4011) controls the signal transmitter (4014) to send an alarm signal to the receiving end.

3. A pipe pile structure according to claim 2, characterized in that, The container (404) is provided with a hinge seat (4025) at the top. The swing member (4022) is rotatably mounted on the hinge seat (4025). An elastic member (4026) is also provided at the top of the container (404) between the hinge seat (4025) and the driving member (4024). The two ends of the elastic member (4026) are respectively connected to the top of the container (404) and the swing member (4022). The length of the swing member (4022) on the side with the driving member (4024) is greater than the length on the side with the pulling member (4023). When the container (404) is filled with a conductive material (403) causing the float (4021) to move upward, the driving member (4024) can be reset downward under the leverage of the center of gravity of the swing member (4022) and / or the reset elastic potential energy of the elastic member (4026); the container (404) is provided with a directional rod (4027), and the float (4021) can be moved up and down by passing through the directional rod (4027) through the corresponding holes; the top of the container (404) is provided with a feed port (4028) by opening and closing the corresponding screw cap.

4. A pipe pile structure according to claim 2, characterized in that, The conductive material (403) is made of powdered or granular metal or is an electrolyte, and when the conductive material (403) is an electrolyte, the bottom of the steel sleeve (302) is sealed.

5. A pipe pile structure according to claim 1, characterized in that, The sacrificial anode block (303) is detachably connected to the steel sleeve (302) by a threaded connection. The top of the steel sleeve (302) is provided with a raised edge. The top of the sacrificial anode block (303) is fixedly installed under the sleeve cover (304) by a corresponding countersunk bolt. After the sacrificial anode block (303) is installed inside the steel sleeve (302), the sleeve cover (304) and the raised edge are sealed and locked by a water-stop rubber ring and bolts.

6. A pipe pile structure according to claim 1, characterized in that, The end plate (102) on the topmost pipe pile (1) is cut off to expose the prestressed steel bar (101). One end of the conductive steel bar (301) is welded to the steel sleeve (302), and the other end is set as two parallel branches. The two branches are respectively welded to the exposed prestressed steel bar (101) and the cut-off end plate (102).

7. A pipe pile structure according to claim 1, characterized in that, The pipe pile structure also includes a connecting mechanism (5) for improving the uniformity of the butt contact of the end steel plates (102) on the upper and lower pipe piles (1). The opposite sides of the end steel plate (102) at the bottom of the upper pipe pile (1) and the end steel plate (102) at the top of the lower pipe pile (1) are both provided with recessed grooves (501). When the upper and lower pipe piles (1) are connected, the upper and lower recessed grooves (501) are connected to form a flat figure-eight structure on the longitudinal section. The connecting mechanism (5) includes an annular ring (502) with a vertical figure-eight cross section and the same cross-sectional area as the two mating embedded grooves (501). The annular ring (502) is made of an adaptable elastic metal. The annular ring (502) has two cavities that are isolated from each other. The cavities are filled with vibration damping material (503). After the two pipe piles (1) are connected, the connecting mechanism (5) adapts and deforms to fill and connect the upper and lower embedded grooves (501).

8. A pipe pile structure according to claim 7, characterized in that, The embedded groove (501) is located near the welding layer (2), and the vibration damping material (503) is composed of spherical damping particles made of metal material and rubber particles filled in an extruded manner; the sealing gasket between the upper and lower pipe piles (1) is installed on the inner side of the connecting mechanism (5).

9. A pipe pile structure according to claim 1, characterized in that, A traction locking mechanism (6) is provided between two adjacent pipe piles (1) to form a rigid connection between the two pipe piles (1). The traction locking mechanism (6) includes a plurality of traction holes (601) arranged concavely in the end steel plate (102) at the top of the lower pipe pile (1) along a ring array, and a plurality of traction components (602) fixed to the end steel plate (102) at the bottom of the upper pipe pile (1) in a one-to-one correspondence with the traction holes (601). The traction assembly (602) includes a base column (6021) adapted to the size of the traction hole (601) and a plurality of traction blocks (6022) arranged in a ring array and fixed to the outer end of the base column (6021); the lower diameter of the traction hole (601) gradually increases, and a guide platform (603) is fixedly provided at its center. The guide platform (603) includes a cylindrical part (6031) and a frustum part (6032) integrally formed. The outer side wall of the guide platform (603) is arranged parallel to the inner side wall of the corresponding traction hole (601) to form a corresponding guide groove. The width of the guide groove is adapted to the thickness of the traction block (6022). When the two pipe piles (1) are connected vertically, the traction assembly (602) is embedded in the guide groove, and its traction block (6022) opens outwards along the bottom slope of the guide groove and is stuck in the guide groove.

10. A pipe pile structure according to claim 9, characterized in that, The top of the cylindrical part (6031) is recessed inward and has a spherical positioning groove (6033). A positioning ball (6023) adapted to the positioning groove (6033) is fixedly installed on the end steel plate (102) at the bottom of the upper pipe pile (1) at the center of the traction assembly (602). The top of the cylindrical part (6031) is divided into multiple locking blocks (6034) by grooves distributed along a ring array and arranged radially. The traction... The inner wall of the block (6022) is recessed below the positioning ball (6023) and a limiting groove (6024) is provided. When the two pipe piles (1) are connected vertically, the locking block (6034) opens to the surroundings through the guidance of the positioning ball (6023) and is inserted into the limiting groove (6024), so that the end steel plate (102) at the bottom of the upper pipe pile (1) and the end steel plate (102) at the top of the lower pipe pile (1) form a pull-locking connection.

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