Construction method for temporary construction access based on shore-based high-pile wharf

Abstract

This invention provides a construction method for a temporary construction access road based on a high-pile wharf on a shore foundation, comprising the following steps: S1. Selecting a suitable construction starting point based on site conditions and the storage location of prefabricated components; S2. Rationally arranging the installation area and location of the temporary construction access road's transfer units within the relevant area of ​​the construction starting point; S3. Observing the installation status of pile caps, pile columns, prestressed assembled crossbeams, and prestressed assembled longitudinal beams within the installation area; S4. Hoisting the load-bearing frame to the designed position and lowering it into place using lifting lugs attached by ropes; S5. Adjusting the rotating disc and lifting jacks at the bottom of the load-bearing frame to ensure that the upper part of the load-bearing frame is in a horizontal state; S6. Limiting the alignment between two adjacent load-bearing frames using alignment pipes and fine-tuning the joint between the two load-bearing frames; S7. Installing and fully securing the steel plate on the top of the load-bearing frame. This invention is ingeniously designed, significantly improving overall installation efficiency, ensuring construction safety, and offering better economic benefits.

Description

Technical Field

[0001] This invention relates to the field of prefabricated wharf construction technology, and in particular to a construction method for a temporary construction channel for a shore-based high-pile wharf. Background Technology

[0002] High-pile wharf structures are one of the main types of port hydraulic structures, widely used and characterized by a variety of component types, large-scale on-water construction, and long construction periods, making them particularly suitable for prefabricated structures. Prefabrication has become a trend, gradually replacing cast-in-place construction methods not only in bridge construction but also in wharf construction. Bridges are mostly constructed along the longitudinal direction, and using a bridge erecting machine to construct span by span along the longitudinal direction can effectively solve the problem of erecting prefabricated components. However, wharves differ from bridges; they have many planar prefabricated components, and the space available for the bridge erecting machine is small or even nonexistent. After completing the pile cap construction, the horizontal and longitudinal beams need to be hoisted, followed by the panel installation, and finally the pouring of the joints.

[0003] Chinese patent document CN 115233533 A describes a water-land connection structure and construction method for a high-pile steel trestle bridge at a wharf. However, this structure cannot be adjusted in a timely manner as needed, the construction channel is constructed in one go, and the installation of the bridge deck cannot be guaranteed. It has defects in use and needs to be improved. Summary of the Invention

[0004] This invention provides a construction method for a temporary construction channel based on a shore-based high-pile wharf, which solves the problems of relatively small construction space, troublesome hoisting and repositioning of different panels, the need to occupy hoisting equipment for a long time, and limited construction window.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a construction method for a temporary construction passage based on a shore-based high-pile wharf, comprising the following steps:

[0006] S1. Select a suitable starting point for construction based on site conditions and the storage location of prefabricated components;

[0007] S2. In the relevant area at the starting point of construction, the installation area and location of temporary construction passages should be reasonably arranged for the transfer units;

[0008] S3. Observe the installation status of pile caps, pile columns, prestressed assembled crossbeams and prestressed assembled longitudinal beams in the installation area;

[0009] S4. Attach the load-bearing frame to the lifting lugs using slings, then hoist the load-bearing frame to the design position and lower it into place;

[0010] S5. Adjust the rotating disc and lifting jack at the bottom of the load-bearing frame to ensure that the top of the load-bearing frame is in a horizontal state.

[0011] S6. The two adjacent load-bearing frames are positioned by alignment tubes, and the joint between the two load-bearing frames is finely adjusted.

[0012] S7. Install steel plates on the top of the load-bearing frame and secure them securely.

[0013] S8. Temporarily store the prestressed assembled crossbeams and prestressed assembled longitudinal beams on different steel plates respectively.

[0014] S9. Adjust the positions of different load-bearing frames along the construction direction until construction is completed;

[0015] S10. When construction reaches the design endpoint, dismantle and remove the different load-bearing frames from the temporary construction passage in sequence.

[0016] In the preferred scheme, for the convenience of construction, the first platform, the second platform, and the third platform are selected to form a temporary construction passage in S2.

[0017] In the preferred embodiment, the load-bearing frame is symmetrically provided with notches, and the lifting lugs are fixed inside the load-bearing frame, with the highest point of the lifting lugs being lower than the top surface of the steel plate.

[0018] In the preferred embodiment, in step S5, the rotating disc and lifting jack at the bottom of the load-bearing frame are adjusted. The lifting jack is connected to the load-bearing frame via lifting outriggers. The top of the lifting outriggers is equipped with a base, and the support plate is fixed to the bottom of the load-bearing frame. The height difference of the foundation is compensated by adjusting the rotating disc and lifting jack. In step S6, the two adjacent load-bearing frames are positioned by a positioning tube.

[0019] In the preferred embodiment, the rotating disk is sleeved on the support disk, the rotating disk and the support disk are threaded together, and a rotating rod is provided on the outside of the rotating disk.

[0020] In the preferred embodiment, in S8, a beam transport trolley is used to switch the positions of precast panels, prestressed assembled crossbeams, and prestressed assembled longitudinal beams between different steel plates.

[0021] In the preferred embodiment, the first platform is initially installed on the side closer to the shore foundation, and the second and third platforms are installed on the side away from the shore foundation. Then, a gantry crane is used for hoisting construction, and the positions of the first, second, and third platforms are adjusted according to the construction needs.

[0022] The preferred solution includes the following steps:

[0023] S11. Install the prestressed assembly crossbeam and the prestressed assembly longitudinal beam at the first installation position on one side of the first platform, and then place the precast panel on the prestressed assembly crossbeam and the prestressed assembly longitudinal beam.

[0024] S12. After disassembling the first platform, move it to one side of the third platform and fix it securely. Then, install the prestressed assembly crossbeam and prestressed assembly longitudinal beam in sequence at the second installation position of the original position of the first platform, and place the precast panel in place.

[0025] S13. After disassembling the second platform, move it to one side of the precast panel and fix it securely. Then, install the prestressed assembly crossbeam and prestressed assembly longitudinal beam in sequence at the third installation position of the original position of the second platform, and place the precast panel in place.

[0026] S14. After disassembling the third platform, move it to one side of the first platform and fix it securely. Then, install the prestressed assembly crossbeam and prestressed assembly longitudinal beam in sequence at the fourth installation position of the original position of the third platform, and place the precast panel in place.

[0027] Repeat steps S11 to S14 until all construction work is completed.

[0028] In the preferred embodiment, a gap is reserved approximately in the middle of the two rows of prefabricated panels that have been installed, and prestressed assembly crossbeams and prestressed assembly longitudinal beams are pre-stored on both sides.

[0029] In the preferred embodiment, after the precast panels are in place, the pouring construction is completed at the node location.

[0030] The beneficial effects of this invention are as follows: by setting up a first platform, a second platform, and a third platform that cooperate with each other, the panels, prestressed assembled crossbeams, and prestressed assembled longitudinal beams can be temporarily stored, ensuring convenient material sourcing during construction. The beam transport trolley is used to rotate different precast components, thereby facilitating subsequent rapid hoisting and placement. The overall construction of the load-bearing frame is convenient. The lifting jacks and rotating discs can adjust the horizontal state of the top steel plate as needed, thereby adapting to the height difference when installed on different pile caps. This invention is easy to operate, can improve the overall construction efficiency, and has good economic benefits. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0032] Figure 1 This is a schematic diagram of the structure of the present invention, state one;

[0033] Figure 2 This is a front view of the temporary construction passage of the present invention;

[0034] Figure 3 This is a top view of the temporary construction passage of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the present invention, state two;

[0036] Figure 5This is the first construction procedure for the temporary construction passage of the present invention;

[0037] Figure 6 This is the second construction procedure for the temporary construction passage of the present invention;

[0038] Figure 7 This is the third construction step of the temporary construction passage of the present invention;

[0039] Figure 8 This is the fourth construction step of the temporary construction passage of the present invention;

[0040] Figure 9 This is the fifth construction step of the temporary construction passage of the present invention;

[0041] Figure 10 This is a schematic diagram of the simultaneous construction of multiple temporary passages along the longitudinal direction according to the present invention.

[0042] In the diagram: 1. Shore foundation; 2. Precast panel; 3. First platform; 4. Second platform; 5. Third platform; 6. Rotation unit; 7. Gantry crane; 8. Pile cap; 9. Pile column; 10. Temporary construction passage; 1001. Steel plate; 1002. Load-bearing frame; 1003. Lifting lug; 1004. Lifting jack; 1005. Alignment tube; 1006. Support plate; 1007. Rotary plate; 1008. Rotating rod; 1009. Base; 1010. Notch; 1011. Prestressed assembly crossbeam; 12. Prestressed assembly longitudinal beam; 13. First installation position; 14. Second installation position; 15. Third installation position; 16. Fourth installation position. Detailed Implementation

[0043] like Figure 1-4 A construction method for a temporary construction access road based on a shore-based high-pile wharf includes the following steps:

[0044] S1. Select a suitable starting point for construction based on site conditions and the storage location of prefabricated components;

[0045] S2. The installation area and location of the temporary construction passage 10 are reasonably arranged in the relevant area at the construction starting point, and the transfer unit 6 is arranged accordingly.

[0046] S3. Observe the installation status of pile cap 8, pile column 9, prestressed assembled crossbeam 11 and prestressed assembled longitudinal beam 12 in the installation area.

[0047] S4. Hook the lifting lug 1003 with a sling and then hoist the load-bearing frame 1002 to the design position and place it in place.

[0048] S5. Adjust the rotating disk 1008 and lifting jack 1005 at the bottom of the load-bearing frame 1002 to ensure that the upper part of the load-bearing frame 1002 is in a horizontal state.

[0049] S6. The two adjacent load-bearing frames 1002 are limited by the alignment tube 1006, and the joint between the two load-bearing frames 1002 is finely adjusted.

[0050] S7. Install steel plate 1001 on top of load-bearing frame 1002 and secure it securely.

[0051] S8. The prestressed assembled crossbeam 11 and prestressed assembled longitudinal beam 12 are temporarily stored on different steel plates 1001 respectively.

[0052] S9. Adjust the positions of the different load-bearing frames 1002 along the construction direction until construction is completed;

[0053] S10. When construction reaches the design endpoint, dismantle and remove the different load-bearing frames 1002 in sequence from the temporary construction passage 10.

[0054] After the load-bearing frame 1002 is placed on the pile cap 9, the prestressed assembly crossbeam 11, or the prestressed assembly longitudinal beam 12, due to errors in manufacturing and installation precision, and because the prestressed assembly crossbeam 11 or the prestressed assembly longitudinal beam 12 itself has a certain height, the height difference is compensated by adjusting the rotating disk 1008 and the lifting jack 1005 to maintain its horizontal state, thereby forming a temporary construction platform to facilitate subsequent hoisting construction.

[0055] In the preferred embodiment, for ease of construction, in S2, the first platform 3, the second platform 4, and the third platform 5 are selected to form a temporary construction passage 10. The first platform 3, the second platform 4, and the third platform 5 can adopt the same structural form, consisting of a load-bearing frame 1002 and a steel plate 1001. As needed, components such as lifting outriggers 1004, lifting jacks 1005, support plates 1007, and rotating plates 1008 can be quickly installed, ensuring rapid installation and dismantling. Simultaneously, the overall structure is stable and has stronger load-bearing capacity after installation. During use, depending on project requirements and the amount of construction work, only the first platform 3 and the second platform 4 can be used. These two platforms can then cooperate to provide a construction passage for material handling, ensuring convenient and efficient construction.

[0056] In the preferred embodiment, the load-bearing frame 1002 has symmetrical notches 1011, and the lifting lugs 1003 are fixed inside the load-bearing frame 1002. The highest point of the lifting lugs 1003 is lower than the top surface of the steel plate 1001. This structure facilitates hoisting and prevents the lifting lugs 1003 from protruding and obstructing the installation after it has been hoisted and positioned.

[0057] In the preferred embodiment, in step S5, the lifting jack 1005 is connected to the load-bearing frame 1002 via lifting outriggers 1004. A base 1010 is located on the top of the lifting outriggers 1004, and a support plate 1007 is fixed to the bottom of the load-bearing frame 1002. The height difference of the foundation is compensated by adjusting the rotating disc 1008 and the lifting jack 1005. Overall adjustment is convenient. The base 1010, supported below the load-bearing frame 1002, has a large contact area and balanced force distribution. The lifting jack 1005 has a large stroke range, while the rotating disc 1008 has a smaller stroke range than the lifting jack 1005, allowing for flexible adjustment.

[0058] In the preferred embodiment, the rotating disk 1008 is sleeved on the support disk 1007, and the rotating disk 1008 and the support disk 1007 are threaded together. A rotating rod 1009 is provided on the outside of the rotating disk 1008. This structure facilitates rotation, provides stable support, and improves stress distribution.

[0059] In the preferred embodiment, in step S8, a beam transport trolley is used to move the precast panel 2, prestressed assembled crossbeam 11, and prestressed assembled longitudinal beam 12 between different steel plates 1001. The beam transport trolley adopts a gantry structure with wheels at the bottom, ensuring stable hoisting and convenient overall relocation.

[0060] In the preferred embodiment, initially, a first platform 3 is installed on the side closest to the shore foundation 1, and a second platform 4 and a third platform 5 are installed on the side of the first platform 3 away from the shore foundation 1. Then, a gantry crane 7 is used for hoisting operations, and the positions of the first platform 3, second platform 4, and third platform 5 are adjusted according to construction needs. By rationally configuring the first platform 3, second platform 4, and third platform 5, the convenience of subsequent construction is ensured, and the first platform 3, second platform 4, and third platform 5 are continuously advanced, thereby completing the installation of all prefabricated panels 2 relatively quickly.

[0061] like Figure 5-10 In the preferred embodiment, the following steps are included:

[0062] S11. Install the prestressed assembly beam 11 and the prestressed assembly longitudinal beam 12 on the first installation position 13 on one side of the first platform 3, and then place the precast panel 2 on the prestressed assembly beam 11 and the prestressed assembly longitudinal beam 12.

[0063] S12. After disassembling the first platform 3, move it to one side of the third platform 5 and fix it securely. Then, install the prestressed assembly crossbeam 11 and the prestressed assembly longitudinal beam 12 in sequence on the second installation position 14 of the original position of the first platform 3, and place the prefabricated panel 2 in place.

[0064] S13. After disassembling the second platform 4, move it to one side of the precast panel 2 and fix it securely. Then, install the prestressed assembly beam 11 and the prestressed assembly longitudinal beam 12 in sequence at the third installation position 15 in the original position of the second platform 4, and place the precast panel 2 in place.

[0065] S14. After disassembling the third platform 5, move it to one side of the first platform 3 and fix it securely. Then, install the prestressed assembly crossbeam 11 and the prestressed assembly longitudinal beam 12 in sequence at the original position of the third platform 5, the fourth installation position 16, and place the prefabricated panel 2.

[0066] Repeat steps S11 to S14 until all construction work is completed.

[0067] The procedures are reasonable and easy to adjust, ensuring high efficiency in construction.

[0068] In the preferred configuration, a space is reserved approximately in the middle of the two rows of prefabricated panels, and prestressed assembly crossbeams and longitudinal beams are pre-stored on both sides. This structure offers better space utilization, requires fewer hoisting equipment and less time, and is more economical. The large area in the middle serves as a movement space for personnel and materials, while the sides serve as temporary storage areas, making overall operation more convenient and coordinated.

[0069] In the preferred embodiment, after the precast panel 2 is in place, the pouring construction is completed at the node location. This structure ensures overall structural stability.

[0070] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A construction method for a temporary construction access road based on a shore-based high-pile wharf, characterized by: Includes the following steps: S1. Select a suitable starting point for construction based on site conditions and the storage location of prefabricated components; S2. Arrange the installation area and location of the temporary construction passage (10) in a reasonable manner using the transfer unit (6). S3. Observe the installation status of pile caps (8), pile columns (9), prestressed assembled crossbeams (11) and prestressed assembled longitudinal beams (12) in the installation area; S4. The load-bearing frame (1002) is hoisted to the design position and lowered by attaching the hoisting lug (1003) with the hoisting rope; S5. Ensure that the upper part of the load-bearing frame (1002) is in a horizontal state; S6. Fine-tune the joint between the two load-bearing frames (1002); S7. Install the steel plate (1001) on the top of the load-bearing frame (1002) and secure it securely. S8. The prestressed assembled crossbeam (11) and prestressed assembled longitudinal beam (12) are temporarily stored on different steel plates (1001); S9. Adjust the positions of the different load-bearing frames (1002) along the construction direction until construction is completed; S10. When construction reaches the design end point, dismantle and remove the different load-bearing frames (1002) from the temporary construction passage (10) in sequence. For the convenience of construction, the first platform (3), the second platform (4) and the third platform (5) in S2 are selected to form a temporary construction passage (10). Initially, a first platform (3) is installed on the side closest to the shore foundation (1), and a second platform (4) and a third platform (5) are installed on the side of the first platform (3) away from the shore foundation (1). Then, a gantry crane (7) is used for hoisting construction, and the positions of the first platform (3), the second platform (4) and the third platform (5) are adjusted according to the needs of construction. Includes the following steps: S11. Install the prestressed assembly crossbeam (11) and the prestressed assembly longitudinal beam (12) on the first installation position (13) on one side of the first platform (3), and then place the precast panel (2) on the prestressed assembly crossbeam (11) and the prestressed assembly longitudinal beam (12). S12. After disassembling the first platform (3), move it to one side of the third platform (5) and fix it fully. Then, install the prestressed assembly crossbeam (11) and prestressed assembly longitudinal beam (12) in sequence on the second installation position (14) of the original position of the first platform (3), and place the prefabricated panel (2). S13. After disassembling the second platform (4), move it to one side of the precast panel (2) and fix it fully. Then, install the prestressed assembly beam (11) and the prestressed assembly longitudinal beam (12) in sequence on the third installation position (15) of the original position of the second platform (4), and place the precast panel (2) in place. S14. After disassembling the third platform (5), move it to one side of the first platform (3) and fix it fully. Then, install the prestressed assembly beam (11) and the prestressed assembly longitudinal beam (12) in sequence on the fourth installation position (16) of the original position of the third platform (5), and place the prefabricated panel (2). Repeat steps S11 to S14 until all construction work is completed.

2. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 1, characterized in that: The load-bearing frame (1002) has symmetrical notches (1011), and the lifting lug (1003) is fixed inside the load-bearing frame (1002). The highest point of the lifting lug (1003) is lower than the top surface of the steel plate (1001).

3. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 1, characterized in that: S5 In the middle, the rotating disk (1008) and lifting jack (1005) at the bottom of the load-bearing frame (1002) are adjusted. The lifting jack (1005) is connected to the load-bearing frame (1002) through the lifting leg (1004). The top of the lifting leg (1004) is provided with a base (1010). The support plate (1007) is fixed at the bottom of the load-bearing frame (1002). The height difference of the foundation is compensated by adjusting the rotating disk (1008) and the lifting jack (1005). In S6, the two adjacent load-bearing frames (1002) are limited by the alignment tube (1006).

4. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 3, characterized in that: The rotating disk (1008) is sleeved on the support disk (1007), and the rotating disk (1008) and the support disk (1007) are threaded together. A rotating rod (1009) is provided on the outside of the rotating disk (1008).

5. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 1, characterized in that: In S8, a beam transport trolley is used to switch the positions of precast panels (2), prestressed assembled crossbeams (11) and prestressed assembled longitudinal beams (12) between different steel plates (1001).

6. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 1, characterized in that: A gap is reserved in the middle of the two rows of prefabricated panels (2) that have been installed, and prestressed assembly crossbeams (11) and prestressed assembly longitudinal beams (12) are pre-stored on both sides.

7. The construction method for a temporary construction access road based on a shore-based high-pile wharf according to claim 1, characterized in that: After the precast panel (2) is placed, the pouring construction is completed at the node position.

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