Piling process of drainage rigid pile in drainage anti-liquefaction coral sand foundation

Abstract

The application discloses a pile-forming process of a drainage rigid pile in a drainage anti-liquefaction coral sand foundation, which comprises a base forming box, a base pile pouring device and a drainage rigid pile forming device. The base forming box, the base pile pouring device and the drainage rigid pile forming device are arranged. The base pile pouring device is provided with a connecting and fixing mechanism at the bottom of the outer side. The connecting and fixing mechanism is quickly connected and fixed with the base forming box. The base pile pouring device is provided with a water pumping pipe assembly inside to pump water in the base forming box. The pouring pipe of the base pile pouring device is used to pour concrete into the base forming box, so that the base forming box forms a concrete base. The drainage rigid pile forming device is connected with the base forming box of the poured and formed concrete base. The drainage rigid pile is poured and formed in the drainage rigid pile forming device. The pouring convenience of the drainage rigid pile is improved. The stability of the base pile of the drainage rigid pile is improved. The strength of the drainage rigid pile is improved.

Description

Technical Field

[0001] The present invention relates to the field of rigid piles, in particular to a process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundations. Background Art

[0002] Coral reefs are rock and soil bodies formed by the remains of dead reef-building coral colonies through a long period of geological action. Their main component is calcium carbonate. When pouring drainage rigid piles in coral reef sand foundations, the base piles and pile bodies are generally poured simultaneously. Since the coral reef sand foundation is uneven, porous, and brittle, a support plate needs to be fixed at the bottom of the pile pipe to prevent concrete from leaking from the bottom of the pile pipe. This closes the bottom of the pile pipe, but it is not convenient for the subsequent removal of the pile pipe, and after the pile pipe is closed, it is not convenient for the pile pipe to sink. Summary of the Invention

[0003] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a drainage rigid pile forming process in a drainage liquefaction-resistant coral reef sand foundation.

[0004] The present invention is achieved by constructing a drainage rigid pile forming process in a drainage liquefaction-resistant coral reef sand foundation. The device includes a base forming box, a foundation pile casting device, and a drainage rigid pile forming device. The base forming box is used for casting and shaping the concrete base. The foundation pile casting device is used to extract water from the base forming box and cast concrete. The drainage rigid pile forming device is used for casting and forming the drainage rigid pile. The drainage rigid pile is connected to the top of the concrete base.

[0005] The process includes the following steps:

[0006] Step 1: Fill the base forming box with water to make it sink;

[0007] Step 2: Connect the foundation pile casting device to the foundation forming box, pump water and inject grout into the foundation forming box through the foundation pile casting device, and cast the concrete foundation in the foundation forming box;

[0008] Step 3: Connect the drainage rigid pile forming device to the base forming box, and cast the drainage rigid piles on the concrete base cast in the base forming box through the drainage rigid pile forming device.

[0009] The base forming box includes a box body, a through hole, a connecting frame, a slot, a card slot and a pouring port. A through hole is provided in the middle of the top of the box body, and connecting frames are provided on the left and right sides of the top of the through hole, and the connecting frame and the box body are integrally formed. A slot is provided on the top of the connecting frame, and a card slot is provided at the inner edge of the slot. A pouring port is provided at the top edge of the box body, and the pouring port is connected to the inside of the box body.

[0010] Preferably, the foundation pile pouring device includes a shell, a connection waterproof frame, a support plate, an electric reversing valve, a connecting pipe, a pouring pipe, a first fixing frame, a pumping pipe assembly, a connecting fixing mechanism, an exhaust channel and a groove. The top of the shell is fixedly connected to the connection waterproof frame, a support plate is fixed to the top of the inner side of the shell, and the electric reversing valve is fixed to the top of the support plate. The top of the electric reversing valve is connected to the connecting pipe, and the right side of the electric reversing valve is connected to the pouring pipe. The pouring pipe is in the shape of a "7" and extends through the shell. The outside of the pouring pipe is connected to the first A fixing frame is fixedly connected to the outer shell, the bottom of the electric reversing valve is connected to the water pumping pipe assembly, a connecting and fixing mechanism is fixed to the bottom of the outer wall of the outer shell, a groove is opened in the middle of the bottom end of the outer shell, and the upper and lower ends of the exhaust channel are respectively connected to the interior of the outer shell and the top of the groove, the casting pipe is used to connect with the casting port of the base forming box to inject concrete into the interior of the box, the water pumping pipe assembly is used to pump water into the interior of the base forming box, and the connecting and fixing mechanism is used to connect with the connecting frame of the box to fix the base forming box and the foundation pile casting device.

[0011] Preferably, the water suction pipe assembly includes a water suction pipe telescopic control device, a water suction pipe, a rubber ring, a fixed pipe, a second fixed frame, a limiting pipe and a pipe head assembly. The water suction pipe telescopic control device is vertically penetrated by a water suction pipe, and the top of the outer wall of the water suction pipe is covered with a rubber ring. The top of the water suction pipe extends into the interior of the fixed pipe, and the inner wall of the fixed pipe fits with the rubber ring. The top of the fixed pipe is connected to the electric reversing valve, and the outer side of the fixed pipe is fixedly connected to the outer shell through the second fixed frame. The water suction pipe vertically penetrates the limiting pipe, and the limiting pipe penetrates the inner bottom of the outer shell and is fixedly connected to the outer shell. The bottom end of the water suction pipe is installed with a pipe head assembly.

[0012] Preferably, the water pumping pipe extension and retraction control device includes a fixed shell, a motor, a worm and a worm wheel. A motor is fixed at the top edge of the water pumping pipe extension and retraction control device, and the output shaft at the bottom end of the motor is connected to the worm through a coupling. The worm is arranged inside the fixed shell, and the bottom of the worm is rotatably connected to the fixed shell through a shaft seat. The outer side of the worm is engaged with the worm wheel. The fixed shell is fixed to the inner bottom end of the outer shell, and the inner middle part of the fixed shell is vertically penetrated by the water pumping pipe. The outer wall of the water pumping pipe is embedded with a rack that meshes with the outer teeth of the worm wheel, and the inner wall of the limiting tube is in contact with the water pumping pipe and the rack.

[0013] Preferably, the pipe head assembly includes a connecting shell, a left opening and closing plate, a right opening and closing plate, a first spring and a push block, and a left opening and closing plate and a right opening and closing plate are respectively provided on the left and right sides of the inner bottom end of the connecting shell, and the tops of the left opening and closing plate and the right opening and closing plate are respectively fixedly connected to the push blocks, and the two push blocks are respectively provided at the left and right edges of the inner part of the connecting shell, and the outer side of the push block extends through the connecting shell, and the inner side of the push block is elastically connected to the connecting shell through the first spring, the connecting shell is fixed to the bottom of the outer wall of the water pumping pipe, and the top surfaces of the left opening and closing plate and the right opening and closing plate are both fitted with the bottom end surface of the water pumping pipe, the inner left and right side walls of the groove are inclined in an "eight" shape, and the inner wall of the groove is fitted with the connecting shell.

[0014] The cam is secured to the bottom of the frame and is adapted to engage the cam during movement, so that the cam can be engaged with the actuator, which in turn can be adapted to engage the actuator with the second actuator.

[0015] Preferably, the drainage rigid pile forming device includes a left arc frame, a right arc frame, drainage rigid pile steel bars, a transverse drainage pipe, a longitudinal drainage pipe and a filter plate. A cylindrical shaping frame is fixed between the left arc frame and the right arc frame. Drainage rigid pile steel bars are arranged inside the left arc frame and the right arc frame. The transverse drainage pipe and the longitudinal drainage pipe are respectively fixed in the drainage rigid pile steel bars, and the inner walls of the left arc frame and the right arc frame are fitted with the transverse drainage pipe and the longitudinal drainage pipe. Filter plates are fixed at both ends of the inner sides of the transverse drainage pipe and the longitudinal drainage pipe. A connecting and fixing mechanism is fixed at the bottom of the outer wall of the left arc frame and the right arc frame.

[0016] Preferably, the inner middle portion of the movable plate and the clamping block are both made of metal iron so as to be easily adsorbed by the first electromagnet and the second electromagnet.

[0017] The present invention has the following advantages: By improving the process of providing a drainage rigid pile forming process in a drainage liquefaction-resistant coral reef sand foundation, the present invention has the following improvements compared with similar equipment:

[0018] The drainage rigid pile forming process in the drainage liquefaction-resistant coral reef sand foundation of the present invention is provided with a base forming box, a foundation pile casting device and a drainage rigid pile forming device, and water is injected into the base forming box to reduce the buoyancy of the base forming box. The foundation pile casting device is connected to the base forming box, and a connecting and fixing mechanism is provided at the bottom of the outer side of the foundation pile casting device. The connection and fixing mechanism is used to quickly connect and fix the base forming box and facilitate disconnection. A water pumping pipe assembly is provided inside the foundation pile casting device, and the water pumping pipe of the water pumping pipe assembly can be extended into the base forming box. Water is pumped out, and a pipe head assembly is provided at the bottom of the pumping pipe. After the pumping pipe contracts, the pipe head assembly automatically closes the pumping pipe. Concrete is injected into the base forming box through the pouring pipe of the foundation pile pouring device, so that the base forming box forms a concrete base. The drainage rigid pile forming device is connected to the base forming box of the poured and formed concrete base, and drainage rigid piles are cast in the drainage rigid pile forming device, which increases the convenience of pouring the drainage rigid piles and increases the stability effect of the foundation piles of the drainage rigid piles, thereby increasing the strength of the drainage rigid piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a process flow chart of forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to the present invention;

[0020] Figure 2 This is a schematic diagram of the base forming box structure of the present invention;

[0021] Figure 3 This invention Figure 2 A partial enlarged view of area A;

[0022] Figure 4 This is a schematic diagram of the internal structure of the foundation pile casting device of the present invention;

[0023] Figure 5 Schematic diagram of the internal structure of the water pump assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the water pumping pipe expansion and contraction control device of the present invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the pipe head assembly of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the connection and fixing mechanism of the present invention;

[0027] Figure 9 It is a schematic diagram of the internal structure of the connecting device of the present invention;

[0028] Figure 10 This is a structural diagram of the drainage rigid pile forming device of the present invention;

[0029] Figure 11 This is a top view of the internal structure of the drainage rigid pile forming device of the present invention;

[0030] Figure 12 It is a schematic diagram of the internal structure of the horizontal drainage pipe of the present invention.

[0031] Including: base forming box-1, base steel bar-a1, water-a2, concrete base-a3, foundation pile casting device-2, drainage rigid pile forming device-3, drainage rigid pile-b1, box-11, through hole-12, connecting frame-13, slot-14, card slot-15, casting port-16, shell-21, connecting waterproof frame-22, support plate-23, electric reversing valve-24, connecting pipe-25, casting pipe-26, first fixing frame-27, pumping pipe assembly-28, connecting fixing mechanism-29, exhaust channel-210, groove-211, pumping pipe extension control device-281, pumping pipe-282, rack-2821, rubber ring-283, fixing pipe-284, second fixing frame-285, limit pipe-286, pipe Road head assembly-287, fixed shell-2811, motor-2812, worm-2813, worm gear-2814, connecting shell-2871, left opening and closing plate-2872, right opening and closing plate-2873, first spring-2874, push block-2875, collar-291, connecting device-292, fixed frame-2921, first electromagnet-2922, second spring-2923, movable plate-2924, movable vertical rod-2925, threaded joint-2926, connecting rod-2927, second electromagnet-2928, third spring-2929, clamping block-29210, left arc frame-31, right arc frame-32, drainage rigid pile steel bar-33, horizontal drainage pipe-34, longitudinal drainage pipe-35, filter plate-36. DETAILED DESCRIPTION

[0032] The following will be combined with the Figures 1-12 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figure 1The present invention provides a drainage rigid pile forming process in a drainage liquefaction-resistant coral reef sand foundation. The device comprises a base forming box 1, a foundation pile casting device 2, and a drainage rigid pile forming device 3. The base forming box 1 is used for casting and shaping the concrete base a3. The foundation pile casting device 2 is used for extracting water from the base forming box 1 and casting concrete. The drainage rigid pile forming device 3 is used for casting and shaping the drainage rigid pile b1. The drainage rigid pile b1 is connected to the top of the concrete base a3.

[0034] The process includes the following steps:

[0035] Step 1: Fill the base forming box 1 with water to make it sink;

[0036] Step 2: Connect the foundation pile casting device 2 to the foundation forming box 1, pump water and inject grout into the foundation forming box 1 through the foundation pile casting device 2, and cast the concrete foundation a3 in the foundation forming box 1;

[0037] Step 3: Connect the drainage rigid pile forming device 3 to the base forming box 1 , and cast the drainage rigid pile b1 on the concrete base a3 cast in the base forming box 1 by the drainage rigid pile forming device 3 .

[0038] See also Figures 2-3 The drainage rigid pile forming process in the drainage liquefaction-resistant coral reef sand foundation of the present invention, the base forming box 1 includes a box body 11, a through hole 12, a connecting frame 13, a slot 14, a card slot 15 and a pouring port 16, a through hole 12 is opened in the middle of the top of the box body 11, and connecting frames 13 are provided on the left and right sides of the top of the through hole 12, and the connecting frame 13 and the box body 11 are integrally formed, a slot 14 is opened on the top of the connecting frame 13, and a card slot 15 is opened at the inner edge of the slot 14, a pouring port 16 is provided at the top edge of the box body 11, and the pouring port 16 is communicated with the inside of the box body 11.

[0039] See also Figure 4The pile forming process of the drainage rigid pile in the drainage anti-liquefaction coral sand foundation of the application, the pile pouring device 2 comprises an outer shell 21, a connecting waterproof frame 22, a support plate 23, an electric reversing valve 24, a connecting pipe 25, a pouring pipe 26, a first fixing frame 27, a water pumping pipe assembly 28, a connecting fixing mechanism 29, an exhaust passage 210 and a groove 211, the top of the outer shell 21 is fixedly connected with the connecting waterproof frame 22, the inner top of the outer shell 21 is fixedly connected with the support plate 23, and the electric reversing valve 24 is fixedly connected to the top of the support plate 23, the top of the electric reversing valve 24 is connected with the connecting pipe 25, the right side of the electric reversing valve 24 is connected with the pouring pipe 26, the pouring pipe 26 is in the shape of '7', and extends through the outer shell 21, the outer side of the pouring pipe 26 is fixedly connected with the outer shell 21 through the first fixing frame 27, the bottom of the electric reversing valve 24 is connected with the water pumping pipe assembly 28, the outer wall bottom of the outer shell 21 is fixedly connected with the connecting fixing mechanism 29, the bottom end of the outer shell 21 is provided with the groove 211, and the upper and lower ends of the exhaust passage 210 are respectively connected with the inside of the outer shell 21 and the top of the groove 211, the pouring pipe 26 is used for being connected with the pouring port 16 of the base forming box 1, the inside of the box body 11 is injected with concrete, the water pumping pipe assembly 28 is used for pumping water in the inside of the base forming box 1, and the connecting fixing mechanism 29 is used for being connected with the connecting frame 13 of the box body 11, so as to fix the base forming box 1 and the pile pouring device 2.

[0040] Please refer to Figures 5-6 The pile forming process of the drainage rigid pile in the drainage anti-liquefaction coral sand foundation of the application, the water pumping pipe assembly 28 comprises a water pumping pipe telescopic control device 281, a water pumping pipe 282, a rubber ring 283, a fixed pipe 284, a second fixing frame 285, a limiting pipe 286 and a pipe head assembly 287, the water pumping pipe 282 vertically penetrates through the inside of the water pumping pipe telescopic control device 281, the outer wall top end of the water pumping pipe 282 is sleeved with the rubber ring 283, the top of the water pumping pipe 282 extends into the inside of the fixed pipe 284, the inner wall of the fixed pipe 284 is attached to the rubber ring 283, the top end of the fixed pipe 284 is connected with the electric reversing valve 24, the outer side of the fixed pipe 284 is fixedly connected with the outer shell 21 through the second fixing frame 285, the water pumping pipe 282 vertically penetrates through the limiting pipe 286, the limiting pipe 286 penetrates through the inside bottom of the outer shell 21 and is fixedly connected with the outer shell 21, and the bottom end of the water pumping pipe 282 is provided with the pipe head assembly 287.

[0041] Please refer to Figure 6The present invention relates to a drainage rigid pile forming process in a drainage anti-liquefaction coral reef sand foundation. The pumping pipe expansion and contraction control device 281 includes a fixed shell 2811, a motor 2812, a worm 2813 and a worm wheel 2814. The motor 2812 is fixed at the top edge of the pumping pipe expansion and contraction control device 281. The output shaft at the bottom end of the motor 2812 is connected to the worm 2813 through a coupling. The worm 2813 is arranged inside the fixed shell 2811, and the worm wheel 2814 is fixed to the top edge of the pumping pipe expansion and contraction control device 281. The bottom of the rod 2813 is rotatably connected to the fixed shell 2811 through a shaft seat, the outer side of the worm 2813 is meshed with the worm gear 2814, the fixed shell 2811 is fixed to the inner bottom end of the outer shell 21, and the inner middle part of the fixed shell 2811 is vertically penetrated by the water pumping pipe 282. The outer wall of the water pumping pipe 282 is embedded with a rack 2821 that meshes with the outer teeth of the worm gear 2814, and the inner wall of the limiting tube 286 is in contact with the water pumping pipe 282 and the rack 2821.

[0042] See also Figure 7 The present invention relates to a drainage rigid pile forming process for drainage liquefaction-resistant coral reef sand foundation. The pipe head assembly 287 includes a connecting shell 2871, a left opening and closing plate 2872, a right opening and closing plate 2873, a first spring 2874, and a push block 2875. The left opening and closing plate 2872 and the right opening and closing plate 2873 are respectively provided on the left and right sides of the inner bottom end of the connecting shell 2871. The tops of the left opening and closing plate 2872 and the right opening and closing plate 2873 are respectively fixedly connected to the push blocks 2875, and the two push blocks 2875 are respectively provided on the connecting shell 2871. At the left and right edges of the interior of the shell 2871, the outer side of the push block 2875 extends through the connecting shell 2871, and the inner side of the push block 2875 is elastically connected to the connecting shell 2871 through the first spring 2874. The connecting shell 2871 is fixed to the bottom of the outer wall of the water pumping pipe 282, and the top surfaces of the left opening and closing plate 2872 and the right opening and closing plate 2873 are both in contact with the bottom end surface of the water pumping pipe 282. The left and right side walls of the interior of the groove 211 are inclined in an "eight" shape, and the inner wall of the groove 211 is in contact with the connecting shell 2871.

[0043] See also Figures 8-9, the drainage rigid pile forming process in the drainage anti-liquefaction coral reef sand foundation of the present invention, the connecting and fixing mechanism 29 includes a collar 291 and a connecting device 292, the outer wall of the collar 291 is fixed with the connecting device 292, the collar 291 is sleeved on the bottom of the outer wall of the shell 21, and is fixedly connected to the shell 21, the connecting device 292 includes a fixed frame 2921, a first electromagnet 2922, a second spring 2923, a movable plate 2924, a movable vertical rod 2925, a threaded joint 2926, a connecting rod 2927, a second electromagnet 2928, a third spring 2929 and a block 29210, the inner top of the fixed frame 2921 is fixed with the first electromagnet 2922, the bottom of the first electromagnet 2922 is elastically connected to the movable plate 2924 through the second spring 2923, and the movable plate 2924 is fixed along the fixed The inner wall of the frame 2921 slides vertically, and the top of the movable vertical rod 2925 extends into the fixed frame 2921 and is fixedly connected to the movable plate 2924, and the bottom end of the movable vertical rod 2925 is threadedly connected to the connecting rod 2927 through a threaded joint 2926. The connecting rod 2927 is hollow, and a second electromagnet 2928 is fixed to the inner side of the connecting rod 2927 near the ring 291. The second electromagnet 2928 is elastically connected to the block 29210 through a third spring 2929, and the block 29210 extends through the connecting rod 2927 away from the side of the ring 291. The fixed frame 2921 is fixed to the outer wall of the ring 291, and the connecting rod 2927 is used to be plugged into the slot 14 of the base molding box 1, and the inner wall of the slot 14 is in contact with the connecting rod 2927, and the block 29210 is used to be buckled with the card slot 15.

[0044] See also Figure 1 、 Figure 10 、 Figure 11 and Figure 12 The drainage rigid pile forming process in the drainage liquefaction-resistant coral reef sand foundation of the present invention, the drainage rigid pile forming device 3 includes a left arc frame 31, a right arc frame 32, a drainage rigid pile steel bar 33, a transverse drainage pipe 34, a longitudinal drainage pipe 35 and a filter plate 36, a cylindrical shaping frame is fixed between the left arc frame 31 and the right arc frame 32, the interior of the left arc frame 31 and the right arc frame 32 is provided with a drainage rigid pile steel bar 33, the transverse drainage pipe 34 and the longitudinal drainage pipe 35 are respectively fixed in the drainage rigid pile steel bar 33, and the inner walls of the left arc frame 31 and the right arc frame 32 are fitted with the transverse drainage pipe 34 and the longitudinal drainage pipe 35, and filter plates 36 are fixed at both ends of the interior of the transverse drainage pipe 34 and the longitudinal drainage pipe 35, and a connecting and fixing mechanism 29 is fixed to the bottom of the outer wall of the left arc frame 31 and the right arc frame 32.

[0045] The present invention provides a drainage rigid pile construction process in drainage liquefaction-resistant coral reef sand foundation through improvement, and its working principle is as follows:

[0046] First, the base reinforcement a1 is tied and fixed in the box body 11 of the base forming box 1. The base reinforcement a1 reserves space for the water pumping pipe 282 and the pipe head assembly 287. The base reinforcement a1 reserves space for the drainage rigid pile b1. Water a2 is then injected into the box body 11 to reduce the buoyancy of the box body 11.

[0047] Second, the foundation pile casting device 2 is connected and fixed to the base forming box 1 through the connecting and fixing mechanism 29. When connecting, the connecting device 292 at the bottom of the connecting and fixing mechanism 29 is inserted into the slot 14 of the base forming box 1. When the connecting device 292 is inserted, the block 29210 is squeezed by the top of the inner wall of the slot 14, so that the block 29210 squeezes the third spring 2929 to shrink into the connecting rod 2927. After the connecting rod 2927 is inserted into the slot 14, the elastic potential energy generated by the third spring 2929 is used to squeeze the block 2921 0 is pushed out, so that the clamping block 29210 is buckled with the clamping slot 15, the connecting rod 2927 is plugged into the slot 14, and the pouring pipe 26 is connected to the pouring port 16. Then, the first electromagnet 2922 is energized to adsorb the movable plate 2924, so that the movable plate 2924 drives the connecting rod 2927 to move upward through the movable vertical rod 2925 and the threaded joint 2926, thereby improving the fit between the shell 21 and the box body 11. Then, the foundation pile pouring device 2 and the foundation forming box 1 are placed into the required coral reef sand foundation on the seabed by lifting equipment;

[0048] Third, when the water a2 inside the box body 11 is extracted, the external water pump is connected to the connecting pipe 25, and the motor 2812 of the water pumping pipe extension and contraction control device 281 is controlled to operate. The motor 2812 generates power and drives the worm 2813 to rotate synchronously through the output shaft. The rotation of the worm 2813 drives the worm gear 2814 to rotate synchronously. The rotation of the worm gear 2814 drives the rack 2821 and the water pumping pipe 282 to move downward through the engagement with the rack 2821, so that the bottom end of the water pumping pipe 282 and the pipe head assembly 287 move downward to the bottom end of the box body 11, and the electric reversing valve 24 is controlled to connect the connecting pipe 25 with the fixed pipe 284, so that the water inside the box body 11 is extracted through the external water pump through the connecting pipe 25, the fixed pipe 284 and the water pumping pipe 282.

[0049] Fourth, after the water is pumped, the water pumping pipe 282 and the pipe head assembly 287 are controlled to move upward, and the pipe head assembly 287 moves upward to be embedded in the groove 211. Since the left and right side walls of the inner wall of the groove 211 are in an "eight" shape, when the pipe head assembly 287 is embedded in the groove 211, the push blocks 2875 of the pipe head assembly 287 are squeezed by the inner wall of the groove 211. The two push blocks 2875 squeeze the first spring 2874 and respectively drive the left opening and closing plate 2872 and the right opening and closing plate 2873, so that the left opening and closing plate 2872 and the right opening and closing plate 2873 contract to close the bottom of the water pumping pipe 282;

[0050] Fifth, when pouring concrete into the box body 11, the connecting pipe 25 is connected to the concrete supply equipment, and the electric reversing valve 24 is controlled to connect the connecting pipe 25 to the pouring pipe 26. Concrete enters the box body 11 through the connecting pipe 25, the pouring pipe 26, and the pouring port 16 of the box body 11. After the concrete and the foundation steel bars a1 solidify, a concrete foundation a3 is formed.

[0051] Sixth, when disconnecting the pile casting device 2 from the foundation forming box 1, the first electromagnet 2922 is disconnected from the power supply, and the second electromagnet 2928 is energized. The second electromagnet 2928 attracts the clamping block 29210, and the clamping block 29210 shrinks into the connecting rod 2927. The clamping block 29210 is disconnected from the clamping groove 15 of the foundation forming box 1, and the pile casting device 2 can be removed.

[0052] Seventh, the drainage rigid pile reinforcement bars 33, the transverse drainage pipe 34, and the longitudinal drainage pipe 35 are bundled and fixed in the left and right arc-shaped frames 31 and 32 of the drainage rigid pile forming device 3. The drainage rigid pile forming device 3 is connected to the base forming box 1 on which the concrete base a3 has been poured. During the connection, techniques such as underwater videography, traction rope traction, and buoy position marking can be used to ensure the accuracy of the connection. Concrete and the drainage rigid pile reinforcement bars 33 are injected into the drainage rigid pile forming device 3 to form reinforced concrete. After the concrete inside the drainage rigid pile forming device 3 solidifies, the drainage rigid pile b1 is formed.

[0053] Eighth, the left arc frame 31, the right arc frame 32 of the drainage rigid pile forming device 3 and the connecting and fixing mechanism 29 for connecting with the base forming box 1 are taken out to complete the formation of the drainage rigid pile.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0055] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Drained rigid pile construction technology in drained liquefaction-resistant coral reef sand foundation, including: A base forming box (1), the base forming box (1) is used for pouring and shaping the concrete base (a3); A foundation pile casting device (2), the foundation pile casting device (2) is used to extract water from the interior of the foundation forming box (1) and to cast concrete; A drainage rigid pile forming device (3), the drainage rigid pile forming device (3) is used for casting and forming a drainage rigid pile (b1), the drainage rigid pile (b1) being connected to the top of a concrete base (a3); The process is characterized in that the process comprises the following steps: Step S1: Tie and fix the base steel bars (a1) in the box body (11) of the base forming box (1), reserve space for the drainage rigid piles (b1) in the base steel bars (a1), and inject water (a2) into the box body (11) to reduce the buoyancy of the box body (11): Step S2: The foundation pile casting device (2) is connected and fixed to the base forming box (1) via the connecting and fixing mechanism (29), and the foundation pile casting device (2) and the base forming box (1) are placed into the desired seabed coral reef sand foundation via a lifting device; Step S3: connecting an external water pump to the connecting pipe (25), extracting water from the box (11) through the water pump assembly (28) of the foundation pile casting device (2), and injecting concrete into the base forming box (1), so that the concrete and the base steel bar (a1) form reinforced concrete, and after the concrete in the box (11) solidifies, a concrete base (a3) ​​is formed, and the connection between the foundation pile casting device (2) and the base forming box (1) is disconnected; Step S4: bundling and fixing the drainage rigid pile reinforcement (33), the transverse drainage pipe (34) and the longitudinal drainage pipe (35) in the left arc frame (31) and the right arc frame (32) of the drainage rigid pile forming device (3); Step S5: Connect the drainage rigid pile forming device (3) to the base forming box (1) on which the concrete base (a3) ​​has been poured, inject concrete and drainage rigid pile steel bars (33) into the drainage rigid pile forming device (3) to form reinforced concrete, and form a drainage rigid pile (b1) after the concrete inside the drainage rigid pile forming device (3) solidifies; Step S6: Take out the left arc frame (31), the right arc frame (32) and the connection fixing mechanism (29) for connecting with the base forming box (1) of the drainage rigid pile forming device (3), and complete the formation of the drainage rigid pile.

2. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 1, characterized in that: The base forming box (1) comprises a box body (11), a through hole (12), a connecting frame (13), a slot (14), a clamping groove (15) and a pouring port (16). A through hole (12) is provided at the middle of the top of the box body (11). Connecting frames (13) are provided on both the left and right sides of the top of the through hole (12), and the connecting frame (13) and the box body (11) are integrally formed. A slot (14) is provided at the top of the connecting frame (13), and a clamping groove (15) is provided at the inner edge of the slot (14). A pouring port (16) is provided at the top edge of the box body (11), and the pouring port (16) is connected to the inside of the box body (11).

3. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 1 is characterized by: The foundation pile casting device (2) comprises a housing (21), a connection waterproof frame (22), a support plate (23), an electric reversing valve (24), a connection pipe (25), a casting pipe (26), a first fixing frame (27), a pumping pipe assembly (28), a connection fixing mechanism (29), an exhaust passage (210) and a groove (211). The top of the housing (21) is fixedly connected to the connection waterproof frame (22). The support plate (23) is fixed to the top of the inner side of the housing (21), and the electric reversing valve (24) is fixed to the top of the support plate (23). The top of the electric reversing valve (24) is connected to the connection pipe (25). The right side of the electric reversing valve (24) is connected to the pouring pipe (26), the pouring pipe (26) is in the shape of a "7" and extends through the shell (21), the outer side of the pouring pipe (26) is fixedly connected to the shell (21) through a first fixing frame (27), the bottom of the electric reversing valve (24) is connected to the water pump assembly (28), and a connecting and fixing mechanism (29) is fixed to the bottom of the outer wall of the shell (21), a groove (211) is opened in the middle of the bottom end of the shell (21), and the upper and lower ends of the exhaust channel (210) are respectively connected to the inside of the shell (21) and the top of the groove (211); The pouring pipe (26) is used to connect to the pouring port (16) of the base forming box (1) to inject concrete into the box body (11); The water pumping pipe assembly (28) is used to pump water from the interior of the base forming box (1); The connecting and fixing mechanism (29) is used to connect to the connecting frame (13) of the box body (11) to fix the base forming box (1) and the foundation pile casting device (2).

4. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 3, characterized in that: The water pumping pipe assembly (28) comprises a water pumping pipe expansion and contraction control device (281), a water pumping pipe (282), a rubber ring (283), a fixed pipe (284), a second fixed frame (285), a limit pipe (286) and a pipe head assembly (287). The water pumping pipe (282) vertically penetrates the interior of the water pumping pipe expansion and contraction control device (281). The rubber ring (283) is sleeved on the top end of the outer wall of the water pumping pipe (282). The top end of the water pumping pipe (282) extends into the interior of the fixed pipe (284). The inner wall of the fixed tube (284) is fitted with the rubber ring (283), the top end of the fixed tube (284) is connected to the electric reversing valve (24), and the outer side of the fixed tube (284) is fixedly connected to the housing (21) via a second fixing frame (285). The water extraction pipe (282) vertically penetrates the limiting pipe (286), and the limiting pipe (286) penetrates the inner bottom of the housing (21) and is fixedly connected to the housing (21). A pipe head assembly (287) is installed at the bottom end of the water extraction pipe (282).

5. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 4, characterized in that: The water pumping pipe expansion and contraction control device (281) comprises a fixed housing (2811), a motor (2812), a worm (2813) and a worm wheel (2814). The motor (2812) is fixed at the top edge of the water pumping pipe expansion and contraction control device (281). The output shaft at the bottom end of the motor (2812) is connected to the worm (2813) through a coupling. The worm (2813) is arranged inside the fixed housing (2811), and the bottom of the worm (2813) is connected to the fixed housing (2811) through a shaft seat. The outer side of the worm (2813) and the worm wheel (2814) are rotatably connected, and the outer side of the worm (2813) and the worm wheel (2814) are meshed with each other. The fixed shell (2811) is fixed to the inner bottom end of the outer shell (21), and the inner middle part of the fixed shell (2811) is vertically penetrated by the water pumping pipe (282). The outer wall of the water pumping pipe (282) is embedded with a rack (2821) that meshes with the outer teeth of the worm wheel (2814), and the inner wall of the limiting tube (286) is in contact with the water pumping pipe (282) and the rack (2821).

6. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 4, characterized in that: The pipe head assembly (287) includes a connecting shell (2871), a left opening and closing plate (2872), a right opening and closing plate (2873), a first spring (2874) and a push block (2875). The left opening and closing plate (2872) and the right opening and closing plate (2873) are respectively provided on the left and right sides of the inner bottom end of the connecting shell (2871). The tops of the left opening and closing plate (2872) and the right opening and closing plate (2873) are respectively fixedly connected to the push block (2875), and the two push blocks (2875) are respectively fixedly connected to the push block (2875). 875) are respectively arranged at the left and right edges of the interior of the connecting shell (2871), the outer side of the pushing block (2875) extends through the connecting shell (2871), and the inner side of the pushing block (2875) is elastically connected to the connecting shell (2871) through the first spring (2874), the connecting shell (2871) is fixed to the bottom of the outer wall of the water pumping pipe (282), and the top ends of the left opening and closing plate (2872) and the right opening and closing plate (2873) are both in contact with the bottom end face of the water pumping pipe (282).

7. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 3, characterized in that: The connecting and fixing mechanism (29) comprises a collar (291) and a connecting device (292). The outer wall of the collar (291) is fixed with the connecting device (292). The collar (291) is sleeved on the bottom of the outer wall of the housing (21) and is fixedly connected to the housing (21). The connecting device (292) comprises a fixed frame (2921), a first electromagnet (2922), a second spring (2923), a movable plate (2924), a movable vertical rod (2925), a threaded joint (2926), a connecting rod (2927), a second electromagnet (2928), a third spring (2929) and a clamping block (29210). The inner top of the fixed frame (2921) is fixed with the first electromagnet (2922). The bottom of the first electromagnet (2922) is elastically connected to the movable plate (2924) via the second spring (2923). The movable plate (2924) slides vertically along the inner wall of the fixed frame (2921). The top end of the movable vertical rod (2925) extends into the fixed frame (2921) and is fixedly connected to the movable plate (2924), and the bottom end of the movable vertical rod (2925) is threadedly connected to the connecting rod (2927) through a threaded joint (2926). The connecting rod (2927) is hollow. A second electromagnet (2928) is fixed on the inner side of the connecting rod (2927) near the collar (291). The second electromagnet (2928) is connected to the movable plate (2924) by a third spring ( 2929) is elastically connected to the card block (29210), and the card block (29210) extends through the connecting rod (2927) away from the side of the ring (291), the fixing frame (2921) is fixed to the outer wall of the ring (291), the connecting rod (2927) is used to be plugged into the slot (14) of the base molding box (1), and the inner wall of the slot (14) is in contact with the connecting rod (2927), and the card block (29210) is used to be buckled with the card slot (15).

8. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 1, characterized in that: The drainage rigid pile forming device (3) comprises a left arc frame (31), a right arc frame (32), drainage rigid pile reinforcement (33), a transverse drainage pipe (34), a longitudinal drainage pipe (35) and a filter plate (36). The left arc frame (31) and the right arc frame (32) are fixed to form a cylindrical shaping frame. The drainage rigid pile reinforcement (33) is provided inside the left arc frame (31) and the right arc frame (32). The transverse drainage pipe (34) and the longitudinal drainage pipe (35) are respectively fixed inside the drainage rigid pile reinforcement (33). The inner walls of the left arc frame (31) and the right arc frame (32) are fitted with the transverse drainage pipe (34) and the longitudinal drainage pipe (35). The inner ends of the transverse drainage pipe (34) and the longitudinal drainage pipe (35) are fixed with filter plates (36). The bottom of the outer walls of the left arc frame (31) and the right arc frame (32) are fixed with a connecting fixing mechanism (29).

9. The process for forming drainage rigid piles in drainage liquefaction-resistant coral reef sand foundation according to claim 3, characterized in that: The inner left and right side walls of the groove (211) are inclined in an "eight" shape, and the inner wall of the groove (211) fits in contact with the connecting shell (2871).

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