Integrated pouring trolley for large-span column-free station

Abstract

This utility model discloses an integrated casting trolley for large-span column-free stations, comprising: a vertical lifting mechanism set at the lower part of the trolley gantry, and the gantry height difference adjusted by raising the support. Compared with the traditional trolley adjustment method, the operation is simpler and more precise, and it can quickly adapt to different cross slope and superelevation changes. Compared with the traditional trolley, the trolley of this design adopts an upper and lower template with brackets and lateral screw rods for support. The template layout and support structure are more reasonable, which enhances the stability during casting, reduces the risk of template deformation, and effectively improves the flatness and dimensional accuracy of the lining. The segmented casting construction of the traditional trolley is prone to the risk of leakage inside the tunnel due to excessively large construction joints. The trolley of this design can directly carry out the casting of the next lining after the first lining is completed and has a certain strength, realizing the integrated casting trolley for large-span column-free stations to use one lining to the end, reducing the risk of tunnel leakage caused by defects in construction joints.

Description

Technical Field

[0001] This utility model relates to the field of casting trolley technology, and in particular to an integrated casting trolley for a large-span column-free railway station. Background Technology

[0002] With the continuous advancement of rail transit and the ongoing improvement of social living standards, the public's demand for public transportation facilities has shifted beyond basic functionality to include more stylish and artistic features. Consequently, innovatively designed subway stations have emerged, particularly large-span, column-free arched subway stations, which are favored for their spacious, bright, and simple interiors. However, the structural design and stress conditions of these stations are quite complex, and construction is challenging, which limits their widespread adoption. Formwork trolleys, due to their high strength, good integrity, safety, efficiency, and advantages in mechanization and manual labor, have been widely used in tunnel engineering. However, the application of formwork trolleys in subway station construction faces some challenges due to the large spans and structural complexity of subway stations. As subway station construction in tunnel engineering develops towards large spans and complex geological conditions, the complexity of subway station construction is gradually increasing, highlighting the shortcomings of existing trolley construction technology. These shortcomings are mainly reflected in the following aspects:

[0003] ① Poor flexibility and adaptability: The template dimensions of the trolley are mostly fixed, only suitable for tunnels with specific cross-sectional dimensions. In the construction of curved tunnels, fixed templates are difficult to align with the tunnel axis, easily leading to problems such as uneven lining thickness and uneven joints. Additional wedge blocks are needed for adjustment, increasing construction complexity and error risks. This design trolley, through improvements to the vertical lifting mechanism and optimization of the template and support system, can improve its adaptability to complex terrain.

[0004] ② Low construction efficiency: Existing formwork trolleys are mostly integral or segmented rigid structures, with complex assembly and disassembly processes that are inaccurate and time-consuming. The formwork support structures are complex, with insufficient anchoring, which may lead to formwork shifting or collapse due to uneven stress, threatening the safety of construction workers. Cleaning and maintenance are also very inconvenient. This design achieves integrated casting of large-span column-free stations using a single-mold lining, reducing the number of construction joints, improving the integrity and waterproofing performance of the lining structure, reducing leakage risks, increasing construction efficiency and operational difficulty, and shortening the assembly, disassembly, and lining casting period of the trolley. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an integrated casting trolley for large-span column-free railway stations, which solves the problems of poor flexibility and adaptability and low construction efficiency.

[0006] This utility model also provides an integrated casting trolley for a large-span column-free station, comprising: a bracket column, an upper formwork assembly fixedly connected to the upper end of the bracket column, an upper longitudinal beam bolted to the lower end of the bracket column, a bracket crossbeam bolted to the middle of the bracket column, both ends of the bracket crossbeam bolted to the upper longitudinal beam, a gantry crossbeam fixedly connected to the lower part of the bracket crossbeam, a gantry column fixedly connected to the lower part of the gantry crossbeam, a working platform fixedly connected to the outer surface of the gantry column via a bracket, a hydraulic station and pipeline fixedly connected to the upper surface of the working platform, longitudinal scissor braces obliquely fixed between the gantry columns, a traveling system installed at the lower end of the gantry column, a steel rail installed below the traveling system, a lateral hydraulic cylinder installed on the outer surface of the gantry column, the output end of the lateral hydraulic cylinder connected to the side formwork frame via a pin, and a translational mechanism hinged to the upper surface of the upper longitudinal beam. The system includes: a hydraulic cylinder, with one end hinged to the crossbeam of the support frame; a lower template assembly, with a lateral lead screw bolted to the upper part of the lower template assembly, one end of which is threaded to a lateral working platform, and the other end of which abuts against the reinforcing rib on the back of the side template; a vertical hydraulic cylinder, with a vertical telescopic rod fixedly connected to the bottom of the vertical hydraulic cylinder, the output end of which is hinged to the gantry column, the lower end of which is fixedly connected to a lower longitudinal beam, the bottom of which is bolted to a gantry ground support jack, the upper surface of which is bolted to a foundation jack, and the upper end of which abuts against the support structure below the middle plate; a horizontal plate connecting beam, with a horizontal foot lead screw jack threadedly connected to the lower surface of the horizontal plate connecting beam, the lower end of which is supported on the ground; a gantry and template, with a limit block between the contact area of ​​the gantry and the template, the outer surface of which fits against the edge of the template.

[0007] Preferably, the upper end of the gantry column is fixedly connected to the gantry beam, and the outer surface of the lateral cylinder and the translation cylinder is fixedly connected to the hydraulic station and pipeline through oil pipes. The cylinder is connected through hydraulic oil pipes, which facilitates the control of the cylinder movement and improves the flexibility and accuracy of operation.

[0008] Preferably, the outer surface of the lateral working platform is fixedly connected to the gantry column, and the upper end of the vertical telescopic rod is fixedly connected to the vertical hydraulic cylinder. The working platform is firmly connected to the gantry, ensuring that the platform is safe and reliable during use.

[0009] Preferably, the other end of the bracket beam is hinged to the upper template assembly, and the middle part of the lower template assembly is bolted to the side cylinder. The lower template assembly can achieve trolley diameter expansion adjustment by connecting to the side cylinder.

[0010] Preferably, the lower longitudinal beam is installed laterally at the bottom of the gantry column, and the edge of the working platform is equipped with guardrails. The guardrails effectively protect the safety of the operators, prevent accidental falls, and improve the safety of the working environment.

[0011] Preferably, the two ends of the longitudinal scissor brace are fixedly connected to the gantry crossbeam and the lower longitudinal beam, respectively. The application of the longitudinal scissor brace greatly enhances the stability and deformation resistance of the entire gantry system.

[0012] Beneficial effects:

[0013] This technical solution utilizes an integrated casting trolley for large-span, column-free stations. By placing the vertical lifting mechanism at the bottom of the trolley gantry and adjusting the gantry height difference by raising the supports, the operation is simpler and more precise compared to traditional trolley adjustment methods. It can quickly adapt to different cross slopes and superelevation changes, improving the trolley's adaptability to complex terrain conditions, ensuring overall trolley stability, and reducing construction safety risks. Compared to traditional trolleys, this design uses upper and lower formwork with brackets and lateral screw rods for support. The formwork layout and support structure are more reasonable, enhancing stability during casting, reducing the risk of formwork deformation, effectively improving the flatness and dimensional accuracy of the lining, and reducing later repair costs. Traditional trolleys' segmented casting construction is prone to excessively large construction joints, causing potential tunnel leakage. This design allows for direct casting of the next lining after one lining is completed and has reached a certain strength, with a 0.1m overlap between the old and new concrete linings. This enables the integrated casting trolley for large-span, column-free stations to use a single-layer lining, reducing the risk of tunnel leakage due to construction joint defects. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a template assembly diagram of the integrated casting trolley for large-span column-free railway stations according to this utility model;

[0016] Figure 2 This is a diagram showing the formwork support and pouring process for the integrated pouring trolley for a large-span, column-free station, as described in this utility model.

[0017] Legend:

[0018] 1. Upper formwork assembly; 2. Bracket column; 3. Translation cylinder; 4. Upper longitudinal beam; 5. Bracket crossbeam; 6. Gantry crossbeam; 7. Lower formwork assembly; 8. Gantry column; 9. Lateral working platform; 10. Lateral screw rod; 11. Lateral cylinder; 12. Vertical cylinder; 13. Vertical telescopic rod; 14. Horizontal connecting beam; 15. Lower longitudinal beam; 16. Horizontal foot screw jack; 17. Walking system; 18. Gantry ground support jack; 19. Limit block; 20. Hydraulic station and pipeline; 21. Working platform; 22. Longitudinal scissor brace; 23. Foundation jack; 24. Steel rail. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-2This utility model embodiment provides an integrated casting trolley for a large-span column-free station, which includes: a bracket column 2, the lower ends of which are bolted to the upper longitudinal beam 4, and the upper end is vertically fixed to the upper formwork assembly 1, serving as the main vertical support component of the trolley, transferring the load of the upper formwork to the bottom walking system 17, and enhancing the overall deformation resistance of the trolley. The upper formwork assembly 1 is fixedly connected to the upper end of the bracket column 2, and is rigidly connected to the bracket column 2 by bolts to form the top load-bearing frame of the trolley. As the main load-bearing structure at the top of the trolley, it supports the arch formwork and the concrete load during pouring, while also providing an installation platform for the upper equipment. The lower end of the bracket column 2 is bolted to the upper longitudinal beam 4, which is laterally connected to the top of each bracket crossbeam 5. It is also bolted to the translation cylinder 3 and the upper formwork assembly 1, which enhances the lateral integrity of the bracket crossbeam 5, disperses the lateral force transmitted by the formwork, and prevents the column from tilting due to uneven stress. The middle part of the bracket column 2 is bolted to the bracket crossbeam 5, and the upper part is bolted to the upper longitudinal beam 4 at both ends of the middle part of the bracket column 2. The lower part is welded to the gantry crossbeam 6 to form a whole, and the other end cantilevered to the outside of the formwork and hinged to the upper formwork assembly 1. To enhance the shear resistance of the upper formwork and prevent column deformation due to lateral pressure during pouring, the two ends of the bracket beam 5 are bolted to the upper longitudinal beam 4. The lower part of the bracket beam 5 is fixedly connected to the gantry beam 6, and the upper part is welded to the bracket beam 5. One end of the lower part is welded to the gantry column. In conjunction with the longitudinal scissor brace 22, the shear resistance of the gantry is enhanced, serving as the load-bearing fulcrum for the lower support, transmitting the supporting force, and enhancing the stability of the trolley after positioning. The lower part of the gantry beam 6 is fixedly connected to the gantry column 8, and the lower end is bolted to the wheel set frame of the walking system 17. The upper end is integrally welded to the gantry beam 6. A lateral hydraulic cylinder 11 is installed on the side. The base forms the main structure of the gantry, supporting the upper template and the load of the working platform, and providing an installation foundation for the walking system 17. The outer surface of the gantry column 8 is fixedly connected to the working platform 21 by a bracket. The platform 21 is welded to the gantry column 8 by the bracket and is located in the middle of both sides of the trolley. The edge is equipped with guardrails, providing an operating platform for template cleaning, maintenance and post-pouring inspection. A vibrator mounting plate is reserved on the platform. The upper surface of the working platform 21 is fixedly connected to the hydraulic station and pipeline 20, which are fixed on the working platform 21. The vertical cylinder 12, the side cylinder 11 and the translation cylinder 3 are connected by high-pressure oil pipes respectively. It is equipped with an oil filter and a pressure gauge.Power is provided to each hydraulic cylinder, and the extension and retraction of the hydraulic cylinders are controlled to adjust the trolley. Air must be purged from the pipelines during initial use to ensure stable system pressure. Longitudinal scissor braces 22 are diagonally fixed between the gantry columns 8, welded diagonally between the columns to form a stable triangular structure. Both ends are fixed to the gantry crossbeam 6 and lower longitudinal beam 15, enhancing the longitudinal torsional resistance of the gantry and preventing deformation of the trolley due to uneven load during movement or pouring. A walking system 17 is installed at the lower end of the gantry columns 8, with wheel sets bolted to the bottom of the columns 8. The track uses 43kg steel rails 24. A motor (5.5KW×2) drives the wheel sets through a reducer, moving the trolley along the steel rails 24 to achieve transfer between different construction sections and meet linear pouring requirements. Steel rails 24 are installed below the walking system 17, laid on the surface of the middle plate, corresponding to the upper part of the foundation jack 23. The wheels of the walking system 17 roll along the steel rails 24, providing a guide track for the trolley's movement, and are compatible with 13000mm... The track gauge transfers the trolley load to the center plate, ensuring smooth movement. A lateral hydraulic cylinder 11 is installed on the outer surface of the gantry column 8. The cylinder body is fixed to the side support of the gantry column 8. The piston rod is connected to the side mold frame via a pin. Oil pipes are connected to the hydraulic station and pipeline 20. The opening angle of the side mold is adjusted by telescoping (stroke 200mm, maximum 300mm), adapting to low side walls and side molds with a 100mm gap. To meet the overlapping requirements and ensure the forming accuracy of the lining side, the output end of the lateral cylinder 11 is connected to the side mold frame via a pin. The upper surface of the upper longitudinal beam 4 is hinged with a translation cylinder 3, one end of which is connected to the upper longitudinal beam 4 via a hinge, and the other end is hinged to the bracket beam 5. The oil pipe is connected to the hydraulic station and pipeline 20. The template is moved laterally by extension and retraction to adjust the template center to align with the tunnel center and compensate for construction positioning errors. The other end of the translation cylinder 3 is hinged to the bracket beam 5. The lower template assembly 7 is bolted to the lateral screw rod 10 at the top and bolted to the lateral cylinder 11 in the middle. As a lateral load-bearing structure of the trolley, the trolley diameter can be adjusted by connecting with the lateral hydraulic cylinder 11. The upper part of the lower template assembly 7 is connected to the lateral screw rod 10 by bolts. One end is threaded to the lateral working platform 9, and the other end is pressed against the reinforcing rib on the back of the side formwork. This assists the lateral hydraulic cylinder 11 in fixing the template. After the lateral hydraulic cylinder 11 is adjusted into place, the position of the side formwork is locked to prevent the template from shifting due to the lateral pressure of the concrete during pouring, thereby enhancing the stability of the support. One end of the lateral screw rod 10 is threaded to the lateral working platform 9 and welded to the gantry column 8. A guardrail is provided at the edge to provide operating space for the installation, adjustment and concrete pouring of the lateral template (side formwork), ensuring the safety of construction personnel. The other end of the lateral screw rod 10 is pressed against the reinforcing rib on the back of the side formwork. The vertical hydraulic cylinder 12 is rigidly connected at the bottom to the vertical telescopic rod 13 at the bottom of the gantry. The top of the piston rod is hinged to the gantry column 8 and is arranged parallel to the vertical telescopic rod 13 and works in conjunction with it.The trolley is raised and lowered as a whole by means of hydraulic cylinder extension and retraction, ensuring its height adaptability in different construction scenarios. Simultaneously, its placement at the bottom of the gantry effectively handles changes in horizontal height, ensuring the overall stability of the trolley. A vertical telescopic rod 13 is fixedly connected to the bottom of the vertical hydraulic cylinder 12, its upper end rigidly connected to the vertical hydraulic cylinder 12, and its lower end connected to the lower longitudinal beam 15, acting in conjunction with the vertical hydraulic cylinder 12. This, in conjunction with the vertical hydraulic cylinder 12, achieves the overall raising and lowering of the trolley, enhancing guidance during the lifting process and preventing tilting. The output end of the vertical hydraulic cylinder 12 is hinged to the gantry column 8. The lower end of the vertical telescopic rod 13 is fixedly connected to the lower longitudinal beam 15, laterally connecting to the bottom of the gantry column 8 and bolted to the top of the gantry ground support jack 18, supporting the walking system 17. The bottom of the lower longitudinal beam 15 is bolted to the gantry ground support jack 18, its lower end supporting the ground, and its upper end threadedly connected to the lower longitudinal beam 15. The height can be adjusted by rotation. After the trolley is positioned, it provides auxiliary support to share the load of the walking system 17, preventing the trolley from settling due to excessive load during pouring. The upper surface of the lower longitudinal beam 15 is bolted to the foundation jack 23, with the lower end bolted to the lower longitudinal beam 15 and the upper end tightening against the support structure below the middle plate. This auxiliary support below the middle plate disperses the total load of the trolley, preventing the middle plate from cracking due to excessive stress and ensuring the safety of the trolley during movement and lining. The upper end of the foundation jack 23 tightens against the support structure below the middle plate. Support structure; Horizontal plate connecting beam 14, welded to the splice of top formwork and side formwork, is fastened to the template panel and hinged to the end of horizontal foot screw jack 16 by bolts to ensure that the misalignment of top formwork and side formwork splice is ≤5mm, and transmits the driving force of translation cylinder 3 to template to ensure the flatness of lining surface. The lower surface of horizontal plate connecting beam 14 is threaded with horizontal foot screw jack 16, the lower end of which is supported on the ground, and the upper end is threaded to horizontal plate connecting beam 14 to enhance the lateral stability of the gantry after the trolley is positioned, disperse the lateral force to the middle plate, and avoid the gantry shaking from affecting the lining accuracy. The lower end of horizontal foot screw jack 16 is supported on the ground; Gantry and template, limit block 19 is set between the contact part of the gantry and template, welded to the contact part of the gantry and template, and fits with the edge of the template to limit the displacement of the template relative to the gantry, ensure the accuracy of the reference position when the template is adjusted, and make the deviation between the track center and the tunnel center ≤20mm to ensure the accuracy of the lining position. The outer surface of limit block 19 fits with the edge of template.

[0021] The upper end of the gantry column 8 is fixedly connected to the gantry beam 6. The outer surface of the lateral cylinder 11 and the translation cylinder 3 is fixedly connected to the hydraulic station and pipeline 20 through oil pipes. The outer surface of the lateral working platform 9 is fixedly connected to the gantry column 8. The upper end of the vertical telescopic rod 13 is fixedly connected to the vertical cylinder 12. The other end of the bracket beam 5 is hinged to the upper template assembly 1. The middle part of the lower template assembly 7 is bolted to the lateral cylinder 11. The lower longitudinal beam 15 is horizontally installed at the bottom of the gantry column 8. The edge of the working platform 21 is equipped with a guardrail. The two ends of the longitudinal scissor brace 22 are fixedly connected to the gantry beam 6 and the lower longitudinal beam 15 respectively.

[0022] Specifically, the integrated casting trolley for the large-span column-free station travels on the central slab, with sufficient support provided underneath to ensure the safety of the trolley during travel and lining. The integrated casting trolley is 12 meters long, with a 0.1-meter overlap with the existing concrete. Each formwork is 11.9 meters long. The integrated casting trolley uses a single-formwork lining to the end, with a 600mm high low sidewall and a 100mm overlap between the sidewall and the low sidewall. To facilitate adjustments to the trolley to adapt to changes in cross slope and ensure stability, a vertical lifting mechanism is located under the trolley gantry. The entire trolley is raised and lowered, with the gantry height... The differential adjustment is achieved by raising the support. The vertical cylinder 12 has a designed stroke of 200mm (maximum stroke 300mm, with a 100mm reserved stroke). No sleepers are provided. The road filling height error can be adjusted by the reserved stroke of the cylinder and by appropriately increasing or decreasing the height of the sleepers. The trolley lateral cylinder 11 has a designed stroke of 200mm (maximum stroke 300mm, with a 100mm reserved stroke). The trolley translation cylinder 3 has a maximum stroke of 200mm. The travel stroke can be adjusted by 100mm to the left and right of the tunnel center. The trolley track gauge is 13000mm. The gantry clearance height is 5000mm. The trolley travel speed is 6m / min.

[0023] Example 1: In use, the upper formwork assembly 1 and the lower formwork assembly 7 are placed in the predetermined positions, supported by the bracket column 2 and the lateral threaded rod 11, and then poured. After the top slab concrete is poured and has reached a certain strength, the trolley is moved forward to pour the next section. The vertical lifting mechanism of the trolley is set at the bottom of the gantry. The overall lifting is achieved by the extension and retraction of the vertical hydraulic cylinder 12. The hydraulic cylinder is designed to have a stroke of 200mm. The road filling height error can be adjusted by the reserved stroke of the hydraulic cylinder and by appropriately increasing the height of the sleepers to adapt to different construction height requirements. The lateral hydraulic cylinder 11 is designed to have a stroke of 200mm and is used to adjust the side formwork angle to realize the trolley's diameter expansion function. The translation hydraulic cylinder 3 has a maximum stroke of 200mm, which can adjust the tunnel center by 100mm to the left and right to ensure that the center of the formwork is aligned with the center of the tunnel. The trolley radius is enlarged by 50mm, the panel thickness is 8mm, and a one-mold-to-the-bottom design is adopted. The side formwork overlaps with the low side wall by 100mm. The splicing accuracy is ensured by the formwork connectors to reduce misalignment.

[0024] Example 2: The trolley travels on the middle plate, requiring sufficient support from the construction site below the middle plate to ensure safety during travel and lining. The travel system 17 is driven by a 5.5KW motor and moves along 43kg steel rails 24 with a track gauge of 13000mm and a gantry clearance height of 5000mm. Before use, it must be confirmed that engineering vehicles can pass normally. When the trolley is in the middle plate position, the gantry height difference is adjusted by raising the supports to facilitate adjustment of the transverse superelevation and ensure stability. After installation, the hydraulic system needs to be debugged. During the first operation, the air in the hydraulic pipelines and cylinders must be purged, and hydraulic oil should be added to the specified level multiple times. The system's rated pressure is 6MPa, and it has been factory-tested and should not be adjusted arbitrarily. During positioning, the center of the trolley should be aligned with the center of the tunnel before being supported in place. The track center must meet the design requirements, with an error of no more than 10mm; the deviation between the track center and the tunnel center must not exceed 20mm. After the template is assembled, its flatness must be checked, with gaps no greater than 5mm. During operation, it should open flexibly, and bolt connections must not be loose. During the construction of the tunnel, since the top formwork does not have an arched pouring port or working window, concrete pouring must be carried out according to the corresponding process. The travel reducer needs to be filled with 220-320 medium-load industrial gear oil (gear oil for wheel-side reducers), and the hydraulic system needs to be filled with anti-wear hydraulic oil. The formwork is equipped with a vibrator mounting plate, and the vibrator is provided by the construction site. After use, the equipment must be cleaned and maintained.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A large-span column-free station integrated casting trolley, characterized in that, include: A bracket column (2) is fixedly connected to an upper template assembly (1) at its upper end. An upper longitudinal beam (4) is bolted to the lower end of the bracket column (2). A bracket crossbeam (5) is bolted to the middle of the bracket column (2). Both ends of the bracket crossbeam (5) are bolted to the upper longitudinal beam (4). A gantry crossbeam (6) is fixedly connected to the lower part of the bracket crossbeam (5). A gantry column (8) is fixedly connected to the lower part of the gantry crossbeam (6). A working platform (21) is fixedly connected to the outer surface of the gantry column (8) via a bracket. A hydraulic station and pipeline (20) are fixedly connected to the upper surface of the platform (21). A longitudinal scissor brace (22) is fixedly connected between the gantry columns (8). A walking system (17) is installed at the lower end of the gantry column (8). A rail (24) is set below the walking system (17). A lateral cylinder (11) is installed on the outer surface of the gantry column (8). The output end of the lateral cylinder (11) is connected to the side mold frame through a pin. A translation cylinder (3) is hinged to the upper surface of the upper longitudinal beam (4). The other end of the translation cylinder (3) is hinged to the bracket crossbeam (5). The lower template assembly (7) has a lateral screw rod (10) bolted to its upper part. One end of the lateral screw rod (10) is threaded to a lateral working platform (9), and the other end of the lateral screw rod (10) is pressed against the reinforcing rib on the back of the side mold. A vertical cylinder (12) is fixedly connected to a vertical telescopic rod (13) at its bottom. The output end of the vertical cylinder (12) is hinged to the gantry column (8). A lower longitudinal beam (15) is fixedly connected to the lower end of the vertical telescopic rod (13). A gantry ground support jack (18) is bolted to the bottom of the lower longitudinal beam (15). A foundation jack (23) is bolted to the upper surface of the lower longitudinal beam (15). The upper end of the foundation jack (23) is pressed against the support structure below the middle plate. A horizontal plate connecting beam (14) is provided with a threaded connection on the lower surface of the horizontal plate connecting beam (14), and the lower end of the horizontal foot screw jack (16) is supported on the ground. A gantry and a template are provided, with a limiting block (19) between the contact parts of the gantry and the template, and the outer surface of the limiting block (19) is in contact with the edge of the template.

2. The integrated casting trolley for a large-span column-free railway station according to claim 1, characterized in that, The upper end of the gantry column (8) is fixedly connected to the gantry beam (6), and the outer surfaces of the lateral cylinder (11) and the translation cylinder (3) are fixedly connected to the hydraulic station and pipeline (20) through oil pipes.

3. The integrated casting trolley for a large-span column-free railway station according to claim 1, characterized in that, The outer surface of the lateral working platform (9) is fixedly connected to the gantry column (8), and the upper end of the vertical telescopic rod (13) is fixedly connected to the vertical oil cylinder (12).

4. The integrated casting trolley for a large-span column-free railway station according to claim 1, characterized in that, The other end of the bracket beam (5) is hinged to the upper template assembly (1), and the middle part of the lower template assembly (7) is connected to the side cylinder (11) by bolts.

5. The integrated casting trolley for a large-span column-free railway station according to claim 1, characterized in that, The lower longitudinal beam (15) is installed laterally at the bottom of the gantry column (8), and the edge of the working platform (21) is provided with a guardrail.

6. The integrated casting trolley for a large-span column-free railway station according to claim 1, characterized in that, The two ends of the longitudinal scissor brace (22) are fixedly connected to the portal frame crossbeam (6) and the lower longitudinal beam (15), respectively.

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