Prefabricated plugboard bottom die cast-in-place abutment joint device and construction method thereof

Abstract

The invention provides a prefabricated plugboard bottom die cast-in-situ abutment joint device and a construction method thereof, and relates to the technical field of offshore gravity type wharf upper abutment joint construction, in particular to the prefabricated plugboard bottom die cast-in-situ abutment joint device and the construction method thereof. Comprising a caisson body, grooves are reserved in the positions of a top partition wall and side walls of the caisson body, and reinforcing steel bars are embedded in the periphery of an outer wall of the caisson body; an insertion plate is arranged in the groove; an abutment is arranged on the inserting plate, and the two ends of the abutment are arranged on the reinforcing steel bars. Connecting steel bars are reserved on the two sides of each abutment, and every two adjacent abutments are connected through the corresponding connecting steel bars. The inserting plate type abutment joint bottom formwork is adopted, cast-in-place construction is carried out after side formworks are installed, and the method has the positive effects that the construction difficulty is lowered, safety is improved, meanwhile, the influence of tide water is avoided, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction of joints of upper piers of nearshore gravity-type docks, and in particular to a prefabricated plug-in plate bottom formwork cast-in-place pier joint device and a construction method thereof. Background Art

[0002] In recent years, the structure of gravity-type general berth wharf has gradually changed from the traditional single-row shore-side caisson structure to the double-row independent caisson pier-type wharf, and the wharf structure has changed to the overall assembled structure. The multi-row caisson pier-type wharf structure has the functions of water permeability and ecological environment protection. While ensuring the wharf operation area, it also maintains the natural landscape of the shoreline to the maximum extent. In the double-row caisson pier-type wharf structure, the rear caisson is generally a shore-side structure with wing plates, and the front caisson is an independent pier-type structure. In order to ensure the stability of the structure, the rear caisson is generally reserved with wave-breaking holes. Prefabricated piers are installed on the upper part of the caisson, and the piers are formed into a whole through cast-in-place joints and cast-in-place connecting holes. Affected by the caisson structure, the cast-in-place joints of the upper piers of the rear caisson need to support the bottom formwork. The traditional construction method generally adopts the hanging formwork method for construction, which adopts a double-row caisson structure, the rear caisson with wave-breaking holes, and the joints are cast-in-place after the pier blocks are installed on the upper part. Because the caisson compartment cannot be backfilled to the top of the caisson, the cast-in-place joints need to be supported by bottom formwork. The traditional hanging formwork technology is difficult to construct and has a high safety risk factor. It is also severely affected by tides and has low construction efficiency. Summary of the invention

[0003] The present invention aims to provide a prefabricated plug-in plate bottom formwork cast-in-place pier joint device and a construction method thereof, so as to reduce the construction difficulty, improve the safety, avoid the influence of tide and improve the construction efficiency.

[0004] The prefabricated plug-in plate bottom formwork cast-in-place pier joint device provided by the present invention comprises a caisson body, wherein grooves are reserved at the top partition wall and side wall positions of the caisson body, and reinforcing steel bars are embedded around the outer wall of the caisson body; a plug-in plate is arranged in the groove; a pier is arranged on the plug-in plate, and both ends of the pier are arranged on the reinforcing steel bars; connecting steel bars are reserved on both sides of the pier, and two adjacent piers are connected by the connecting steel bars.

[0005] Furthermore, a hanging nose is pre-embedded on the plug board for installing the plug board.

[0006] The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier provided by the present invention specifically comprises the following steps: Step 1, reserve grooves on the top of the caisson body: before pouring the top layer of the caisson body, reserve grooves on the partition wall and side wall of the top of the caisson body according to the size of the designed plug plate; Step 2: Prefabrication of the plug board: The plug board is prefabricated using a standard steel formwork, and a single layer of reinforcing steel bars is set, and the steel formwork is installed for concrete pouring; Step 3, plug-in board installation: After the caisson body is installed, the compartments are filled with sand and sealed, and then the plug-in boards are installed; Step 4, pier installation: pier installation is performed by crane ship; Step 5, steel bar welding: After the pier is installed, the two piers are welded together using the reserved connecting steel bars; Step 6, side formwork installation: After the welding of the connecting steel bars is completed, the side formwork is supported; Step 7, side formwork removal: After the side formwork is erected, concrete is poured. After the top surface is leveled, the side formwork is removed to complete the cast-in-place pier joint construction.

[0007] Furthermore, in step 1, before pouring the top layer of the caisson body, a foam board is buried in advance according to the size of the groove; after the top layer of concrete of the caisson body is poured, the foam board is removed together with the mold when removing the formwork to form a shelf groove.

[0008] Further, in step 1, according to the design size of the plug plate: length × width × height = a × b × h, the length a of the plug plate is not less than the width L of the inner compartment of the caisson body, the width of the plug plate is determined according to the distance d between the pier and the partition wall on the top of the caisson body, and the height of the plug plate is determined according to the weight of the cast-in-place concrete in the pier joint; after the plug plate is determined, grooves are reserved at the top partition wall and side wall of the caisson body, and the depth of the reserved grooves is the height h of the plug plate. The width of the reserved grooves on the side walls on both sides of the caisson body is the design width b of the plug plate + the reserved installation gap, and the length is (aL) / 2 + the reserved installation gap.

[0009] Furthermore, in step 2, the plug plate is prefabricated using a standard steel formwork, and the size of a single plug plate is: length × width × height = a × b × h, the length a of the plug plate is not less than the width L of the internal compartment of the caisson body, the width of the plug plate is determined according to the distance d between the pier and the partition wall on the top of the caisson body, and the height of the plug plate is determined according to the weight of the cast-in-place concrete in the pier joint. Reinforcement steel bars are set in the middle of the plug plate, and the diameter and number of the reinforcement steel bars are determined according to the stress conditions of the plug plate. During prefabrication, the steel bars are cut and tied according to the design size, and then the steel formwork is installed for concrete pouring; the embedded hanging nose is used for plug plate installation.

[0010] Furthermore, in step 3, the plug plates are installed by onshore hoisting. After the plug plates are transported from the prefabrication site to the construction site by a truck crane in cooperation with a pallet truck, they are installed by an on-site crawler crane. The number of plug plates installed for a single caisson body is determined according to the number of pier joints, and the installation is completed in one go.

[0011] Furthermore, in step 4, after the installation of the plug plate is completed, the pier installation is carried out by the crane ship, and the crane ship is positioned at the beam and slab prefabrication yard to lift and load the beam and slab onto the ship; after completion, it is self-propelled to the installation position, and the crane ship cooperates with the self-propelled deck barge to install the beam and slab.

[0012] Furthermore, in step 6, after the welding of the connecting steel bars is completed, the side formwork is supported. The side formwork adopts a formed steel formwork. A truncated cone is reserved when the pier is prefabricated, and the side formwork is fixed by truncated cone bolts; the side formwork at the chamfered position of the pier is adjustable and fixed by diagonal tensioning through tie rods.

[0013] Furthermore, in step 7, after the side formwork is erected, the side formwork support size and reinforcement degree are checked, and after confirmation, concrete pouring is carried out; the pouring is carried out by pumping with a pump truck, and the pouring process is carried out in layers. The vibrator is used to fully vibrate, and after the top layer is leveled, the side formwork is removed to complete the cast-in-place pier joint construction.

[0014] The prefabricated plug-in plate bottom formwork cast-in-place pier joint device and the construction method thereof provided by the present invention have the following beneficial effects: 1. The present invention adopts a plug-in plate type pier joint bottom formwork. After structural design, the bottom structure of the caisson body is optimized, a groove is reserved, and a long plug-in plate of a prefabricated concrete structure is used as a bottom formwork for cast-in-place. The plug-in plate is used as a bottom formwork for cast-in-place, and cast-in-place construction is carried out after the side formwork is installed, thereby avoiding the need for hanging formwork construction after the pier is installed, avoiding personnel working in a narrow space, reducing construction difficulty, and improving safety.

[0015] 2. The present invention uses a prefabricated plug-in plate bottom formwork to cast the pier in situ. The plug-in plate is installed using the low tide gap. After the pier is installed, there is no need to support the bottom formwork during the tide, thus avoiding the influence of the tide and greatly improving the construction efficiency.

[0016] Therefore, the present invention adopts a plug-in plate-type pier joint bottom formwork, and performs cast-in-place construction after installing the side formwork, which has the positive effects of reducing construction difficulty, improving safety, avoiding the influence of tide, and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings partially disclose specific embodiments of the present invention, wherein: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the top of the caisson body and the pier of the present invention; Figure 3 It is a structural side view of the caisson body of the present invention; Figure numerals: 1. caisson body; 11. groove; 12. reinforcing steel bars; 13. plug plate; 14. hanging nose; 2. pier; 21. connecting steel bars. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and embodiments. Embodiment 1:

[0019] like Figure 1-3As shown, the prefabricated plug-in plate bottom formwork cast-in-place pier joint device provided by the present invention comprises a caisson body 1, a groove 11 is reserved at the top partition wall and side wall positions of the caisson body 1, and reinforcing steel bars 12 are embedded around the outer wall of the caisson body 1; a plug-in plate 13 is arranged in the groove 12; a pier 2 is arranged on the plug-in plate 13, and both ends of the pier 2 are arranged on the reinforcing steel bars 12; connecting steel bars 21 are reserved on both sides of the pier 2, and two adjacent piers 2 are connected by connecting steel bars 21. A hanging nose 14 is embedded on the plug-in plate 13 for plug-in plate installation. Embodiment 2:

[0020] The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier provided by the present invention specifically comprises the following steps: Step 1, reserving a groove 11 at the top of the caisson body 1: before pouring the top layer of the caisson body 1, reserve a groove 11 at the partition wall and side wall position at the top of the caisson body 1 according to the size of the designed plug plate 13; Step 2, prefabrication of the plug plate 13: the plug plate 13 is prefabricated using a standard steel formwork, and a single layer of reinforcing steel bars 12 is provided, and the steel formwork is installed for concrete pouring; Step 3, installing the plug plate 13: after the installation of the caisson body 1 is completed, the compartments are filled with sand and sealed, and then the plug plate 13 is installed; Step 4, installation of pier 2: the crane ship installs pier 2; Step 5, steel bar welding: after the pier 2 is installed, the two piers 2 are welded together through the reserved connecting steel bars 21; Step 6, side formwork installation: after the welding of the connecting steel bars 21 is completed, the side formwork is supported; Step 7, side formwork removal: After the side formwork is erected, concrete is poured. After the top surface is leveled, the side formwork is removed to complete the cast-in-place pier joint construction.

[0021] The present invention adopts a plug-in plate type pier joint bottom template, and performs cast-in-place construction after installing the side template, which has the advantages of reducing construction difficulty, improving safety, avoiding the influence of tide, and improving construction efficiency. Embodiment 3:

[0022] The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier provided by the present invention specifically comprises the following steps: Step 1, reserve a groove 11 at the top of the caisson body 1: before pouring the top layer of the caisson body 1, bury a foam board in advance according to the size of the groove 11; after the top layer of concrete of the caisson body 1 is poured, remove it together with the foam board when removing the formwork to form a shelf groove 11; according to the size of the designed plug-in board 13, reserve a groove 11 at the top partition wall and side wall of the caisson body 1; the size of the plug-in board 13 is: length × width × height = a × b × h, the length a of the plug-in board is not less than the width L of the compartment in the caisson body 1, the width of the plug-in board is determined according to the distance d between the pier 2 and the top partition wall of the caisson body 1, and the height of the plug-in board is determined according to the weight of the cast-in-place concrete in the joint of the pier 2; after the plug-in board 13 is determined, reserve a groove 11 at the top partition wall and side wall of the caisson body 1, the depth of the shelf groove 11 is the height h of the plug-in board, and the width of the reserved groove 11 reserved on the side walls of the caisson body 1 is the design width b of the plug-in board + the reserved installation gap, and the length is (aL) / 2 + the reserved installation gap; Step 2, prefabrication of the plug plate 13: The plug plate 13 is prefabricated with a standardized steel formwork, and the size of a single plug plate 13 is: length × width × height = a × b × h, the length a of the plug plate is not less than the width L of the compartment in the caisson body 1, the width of the plug plate is determined according to the distance d between the pier 2 and the partition wall on the top of the caisson body 1, and the height of the plug plate is determined according to the weight of the cast-in-place concrete in the joint of the pier 2. Reinforcing steel bars 12 are set in the middle of the plug plate, and the diameter and number of the reinforcing steel bars 12 are determined according to the stress conditions of the plug plate. During prefabrication, the steel bars are cut and tied according to the design dimensions, and then the steel formwork is installed for concrete pouring; pre-buried hanging noses are used for plug plate installation; Step 3, installation of the plug plate 13: after the installation of the caisson body 1 is completed, the plug plate 13 is installed after the compartment is filled with sand and sealed; the plug plate 13 is installed by land hoisting, and the truck crane cooperates with the pallet truck to transport the plug plate 13 from the prefabrication site to the construction site, and then the crawler crane is used for installation. During the installation, one person is responsible for commanding, and two people are responsible for auxiliary installation; the number of plug plates 13 installed for a single caisson body 1 is determined according to the number of joints of the pier 2, and the installation is completed at one time; Step 4, installation of pier 2: After the installation of the plug plate 13 is completed, the pier 2 is installed by a 500-ton crane ship, which is positioned at the beam and slab prefabrication site to lift and load the beam and slab onto the ship; after completion, it is self-propelled to the installation position, and the crane ship cooperates with the self-propelled deck barge to install the beam and slab; Step 5, steel bar welding: after the pier 2 is installed, the two piers 2 are welded together through the reserved connecting steel bars 21; Step 6, side formwork installation: After the welding of the connecting steel bars 21 is completed, the side formwork is supported. The side formwork adopts a formed steel formwork. A round table is reserved when the pier 2 is prefabricated, and the side formwork is fixed by the round table bolts; the side formwork at the chamfered position of the pier 2 is adjustable and fixed by diagonal tensioning with a tie rod; Step 7, side formwork removal: After the side formwork is erected, check the side formwork support size and reinforcement degree. After confirmation, pour concrete. Use a pump truck to pump the concrete. The pouring process is layered. Use a vibrating rod to fully vibrate the concrete. After the top layer is leveled, remove the side formwork to complete the cast-in-place pier joint construction.

[0023] The present invention adopts a plug-in type pier joint bottom template. After structural design, the bottom structure of the caisson body is optimized, a groove is reserved, and a long strip of plug-in plate of a prefabricated concrete structure is used as a bottom template for casting in situ. The plug-in plate is used as a bottom template for casting in situ. After the side formwork is installed, cast-in-situ construction is carried out, avoiding the need for hanging formwork construction after the pier is installed, avoiding personnel working in a narrow space, reducing construction difficulty, and improving safety. At the same time, the present invention casts the pier in situ by prefabricating the plug-in plate bottom formwork, and the plug-in plate is installed using the low tide gap. After the pier is installed, it is not necessary to support the bottom template during the tide, so as to avoid being affected by the tide, and greatly improve the construction efficiency. Example

[0024] The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier provided by the present invention specifically comprises the following steps: Step 1, reserve a groove 11 at the top of the caisson body 1: before pouring the top layer of the caisson body 1, bury the foam board in advance according to the size of the groove 11; after the top layer of concrete of the caisson body 1 is poured, remove it together with the foam board when removing the formwork to form a shelf groove 11; according to the size of the designed plug plate 13, reserve a groove 11 at the top partition wall and side wall position of the caisson body 1, the depth of the shelf groove 11 is 0.2m, and the reserved grooves 11 on both sides of the side walls of the caisson body 1 are 0.69m long and 0.1m wide; the middle horizontal partition wall is 0.69m long and 0.22m wide, that is, the horizontal partition walls are all opened; the length of the groove 11 reserved for the longitudinal partition wall of the caisson body 1 is 10.02m, and the width is 0.05m; Step 2, prefabrication of the plugboard 13: The plugboard 13 is prefabricated using a standard steel formwork, and the size of a single plugboard 13 is: 4.96m×0.65m×0.15m; and according to the stress conditions, a single layer of reinforcing steel bars 12 is set, the diameter of the reinforcing steel bars 12 is 12mm, a total of 3, the diameter of the longitudinal bars is 10mm, a total of 25, the steel bars are cut and tied according to the size, and then the steel formwork is installed for concrete pouring; the pre-buried hanging nose is used for plugboard installation; Step 3, installation of the plug plate 13: after the installation of the caisson body 1 is completed, the plug plate 13 is installed after the compartment is filled with sand and sealed; the plug plate 13 is installed by land hoisting, and the truck crane cooperates with the pallet truck to transport the plug plate 13 from the prefabrication site to the construction site, and then the crawler crane is used to install it. During the installation, one person is responsible for commanding and two people are responsible for assisting the installation; a total of 16 plug plates 13 are installed on one caisson body 1, and the installation is completed at one time; Step 4, installation of pier 2: After the installation of the plug plate 13 is completed, the pier 2 is installed by a 500-ton crane ship, which is positioned at the beam and slab prefabrication site to lift and load the beam and slab onto the ship; after completion, it is self-propelled to the installation position, and the crane ship cooperates with the self-propelled deck barge to install the beam and slab; Step 5, steel bar welding: after the pier 2 is installed, the two piers 2 are welded together through the reserved connecting steel bars 21; Step 6, side formwork installation: After the welding of the connecting steel bars 21 is completed, the side formwork is supported. The side formwork adopts a formed steel formwork. A round table is reserved when the pier 2 is prefabricated, and the side formwork is fixed by the round table bolts; the side formwork at the chamfered position of the pier 2 is adjustable and fixed by diagonal tensioning with a tie rod; Step 7, side formwork removal: After the side formwork is erected, check the side formwork support size and reinforcement degree. After confirmation, pour concrete. Use a pump truck to pump the concrete. The pouring process is layered. Use a vibrating rod to fully vibrate the concrete. After the top layer is leveled, remove the side formwork to complete the cast-in-place pier joint construction.

[0025] The present invention adopts a plug-in type pier joint bottom template. After structural design, the bottom structure of the caisson body is optimized, a groove is reserved, and a long strip of plug-in plate of a prefabricated concrete structure is used as a bottom template for casting in situ. The plug-in plate is used as a bottom template for casting in situ. After the side formwork is installed, cast-in-situ construction is carried out, avoiding the need for hanging formwork construction after the pier is installed, avoiding personnel working in a narrow space, reducing construction difficulty, and improving safety. At the same time, the present invention casts the pier in situ by prefabricating the plug-in plate bottom formwork, and the plug-in plate is installed using the low tide gap. After the pier is installed, it is not necessary to support the bottom template during the tide, so as to avoid being affected by the tide, and greatly improve the construction efficiency.

Claims

1. A prefabricated plug-in bottom formwork cast-in-place pier joint device, comprising a caisson body (1), characterized in that: The top partition wall and side wall positions of the caisson body (1) are both reserved with grooves (11), and the outer walls of the caisson body (1) are surrounded by embedded reinforcing steel bars (12); a plug plate (13) is arranged in the groove (12); a pier (2) is arranged on the plug plate (13), and both ends of the pier (2) are arranged on the reinforcing steel bars (12); connecting steel bars (21) are reserved on both sides of the pier (2), and two adjacent piers (2) are connected via the connecting steel bars (21).

2. The prefabricated plug-in plate bottom formwork cast-in-place pier joint device according to claim 1 is characterized in that: A hanging nose (14) is pre-buried on the plug board (13) for installing the plug board.

3. The prefabricated plug-in plate bottom formwork cast-in-place pier joint construction method is characterized by: The specific steps include: Step 1, reserving a groove (11) at the top of the caisson body (1): before pouring the top layer of the caisson body (1), reserve grooves (11) at the top partition wall and side wall positions of the caisson body (1) according to the size of the designed plug plate (13); Step 2, prefabrication of the plug plate (13): the plug plate (13) is prefabricated using a standard steel formwork, and a single layer of reinforcing steel bars (12) is provided, and the steel formwork is installed for concrete pouring; Step 3, installing the plug plate (13): after the caisson body (1) is installed, the compartments are filled with sand and sealed, and then the plug plate (13) is installed; Step 4, installation of the pier (2): installation of the pier (2) is performed by a crane ship; Step 5, steel bar welding: after the pier (2) is installed, two piers (2) are welded together using the reserved connecting steel bars (21); Step 6, side formwork installation: after the welding of the connecting steel bars (21) is completed, the side formwork is supported; Step 7, side formwork removal: After the side formwork is erected, concrete is poured. After the top surface is leveled, the side formwork is removed to complete the cast-in-place pier joint construction.

4. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 3 is characterized in that: In the step 1, before pouring the top layer of the caisson body (1), a foam board is buried in advance according to the size of the groove (11); after the top layer of concrete of the caisson body (1) is poured, the foam board is removed together with the concrete when the formwork is removed, thereby forming a shelf groove (11).

5. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 4 is characterized in that: In the step 1, the dimensions of the plug plate (13) are designed to be: length × width × height = a × b × h, the length a of the plug plate is not less than the width L of the compartment in the caisson body (1), the width of the plug plate is determined according to the distance d between the pier (2) and the partition wall at the top of the caisson body (1), and the height of the plug plate is determined according to the weight of the cast-in-place concrete in the joint of the pier (2); after the plug plate (13) is determined, a groove (11) is reserved at the partition wall and side wall position at the top of the caisson body (1), the depth of the reserved groove (11) is the height h of the plug plate, and the width of the reserved groove (11) reserved on the side walls on both sides of the caisson body (1) is the designed width b of the plug plate + the reserved installation gap, and the length is (aL) / 2 + the reserved installation gap.

6. The method for constructing the prefabricated plug-in plate bottom formwork cast-in-place pier joint according to claim 3 is characterized in that: In step 2, the plug plate (13) is prefabricated using a standard steel formwork, and the size of a single plug plate (13) is: length × width × height = a × b × h, the length a of the plug plate is not less than the width L of the compartment in the caisson body (1), the width of the plug plate is determined according to the distance d between the pier (2) and the partition wall on the top of the caisson body (1), and the height of the plug plate is determined according to the weight of the cast-in-place concrete in the joint of the pier (2). Reinforcement steel bars (12) are arranged in the middle of the plug plate, and the diameter and number of the reinforcement steel bars (12) are determined according to the stress conditions of the plug plate. During prefabrication, the steel bars are cut and tied according to the design dimensions, and then the steel formwork is installed for concrete pouring; the pre-buried hanging nose is used for plug plate installation.

7. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 1 is characterized in that: In step 3, the plug plate (13) is installed by onshore hoisting. A truck crane cooperates with a pallet truck to transport the plug plate (13) from the prefabrication site to the construction site, and then the plug plate (13) is installed by an on-site crawler crane. The number of plug plates (13) installed on a single caisson body (1) is determined according to the number of joints of the pier (2), and the installation is completed in one go.

8. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 1 is characterized in that: In step 4, after the installation of the plug plate (13) is completed, the pier (2) is installed by a crane ship, and the crane ship is positioned at the beam and slab prefabrication site to lift the beam and slab and load it onto the ship; after completion, it is self-propelled to the installation position, and the crane ship cooperates with the self-propelled deck barge to install the beam and slab.

9. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 1, characterized in that: In step 6, after the welding of the connecting steel bars (21) is completed, the side formwork is supported. The side formwork adopts a formed steel formwork. A round table is reserved when the pier (2) is prefabricated, and the side formwork is fixed by round table bolts. The side formwork at the chamfered position of the pier (2) is adjustable and is fixed by diagonal tensioning by tie rods.

10. The method for constructing the joints of a prefabricated plug-in plate bottom formwork cast-in-place pier according to claim 1, characterized in that: In step 7, after the side formwork is erected, the side formwork support size and reinforcement degree are checked, and after confirmation, concrete pouring is carried out; the pouring is carried out by pumping with a pump truck, and the pouring process is carried out in layers. The vibrator is used to fully vibrate, and after the top layer is leveled, the side formwork is removed to complete the cast-in-place pier joint construction.

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