Rail self-walking type operation rail crossing construction equipment and construction method thereof

Abstract

The invention relates to the technical field of building construction equipment, and discloses rail self-walking type operation rail crossing construction equipment and a construction method.The construction equipment comprises door type supporting units symmetrically arranged on the two sides of an operation rail, and rail walking and locking systems are arranged at the bottoms of the door type supporting units; each gate-type supporting unit comprises a supporting column, an inclined strut and sliding track beams, and a modular platform unit is arranged between the sliding track beams on the two sides. The rail walking and locking system comprises a walking wheel pair, an anti-derailment guide mechanism and a mechanical locking device, the walking wheel pair is supported on the rail surface of a steel rail, and the anti-derailment guide mechanism is clamped on the inner side and the upper side of a rail head of the steel rail; the modularized platform unit is formed by splicing a plurality of platform beam plate modules, and the platform beam plate modules are arranged between the sliding track beams on the two sides in a sliding mode. The modularized platform unit is used for bearing of upper cover concrete structure construction and protection of an operation track so as to solve the problems that in the prior art, the transfer field efficiency is low, and the fixing reliability is insufficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction equipment, more particularly to a rail self-walking type cross-operation rail construction equipment and a construction method thereof. BACKGROUND

[0002] With the rapid expansion of urban rail transit network, the construction of superstructure concrete structure crossing the operating rail is increasing. The core technical problem of such projects is how to safely and efficiently complete the upper structure construction under the premise of ensuring the normal passage of the lower operating rail and avoiding significant operational interference. Currently, the industry generally uses a fixed support combined with horizontal sliding removal tooling scheme to carry out related construction, but this scheme has many significant shortcomings and cannot adapt to the harsh demands of busy trunk line cross-rail construction.

[0003] The existing support structure is designed as a whole and fixed. When the construction scene shifts from one construction section to another, the entire support system must be completely disassembled, transported, and then reassembled. The whole process is complicated, time-consuming, and labor-intensive, which not only leads to low construction efficiency, but also significantly prolongs the total project cycle. At the same time, the structural stability of the existing support system does not fully consider the train vibration environment of the operating rail. Under the action of the continuous vibration load generated by the train passing, the connection nodes of the support components are prone to looseness, and the overall stiffness of the support system is difficult to maintain stability, which poses a significant safety hazard, threatening the safety of the upper construction personnel and equipment, and may also indirectly affect the lower rail operation.

[0004] In addition, the horizontal sliding removal process in the existing scheme has very high requirements for the flatness of the rail line and the synchronization control accuracy of the sliding equipment. In actual construction, affected by factors such as rail settlement and equipment synchronization error, problems such as sliding jamming, module deviation, and even collision may occur, significantly increasing the construction risk and control difficulty. Especially in linear cross-rail projects with multiple spans and long distances, frequent disassembly and assembly operations not only significantly increase the construction cost, but also require multiple applications for the occupation of the "window point" of rail operation - this short period of downtime is already scarce in resources, and multiple occupations will seriously interfere with normal rail operation scheduling, further exacerbating the contradiction between construction and operation, and cannot meet the core demands of high efficiency, low interference, and high safety for urban busy trunk line cross-rail construction. SUMMARY

[0005] Therefore, the present application provides a rail self-walking type cross-operation rail construction equipment and a construction method thereof to solve the problems of low transfer efficiency and insufficient fixed reliability in the prior art.

[0006] On the one hand, the rail self-walking type cross-operation rail construction equipment provided by the present application comprises door-type support units symmetrically arranged on both sides of the operating rail, and a rail walking and locking system is arranged at the bottom of the door-type support unit. The portal support unit includes support columns, diagonal braces, and sliding track beams. The diagonal braces are connected between adjacent support columns, and the sliding track beams are fixed to the top of the support columns. Modular platform units are provided between the sliding track beams of the portal support units on both sides of the operating track. The track walking and locking system includes a walking wheelset, an anti-derailment guide mechanism, and a mechanical locking device. The walking wheelset is supported on the rail surface, the anti-derailment guide mechanism is clamped on the inner and upper sides of the rail head, and the mechanical locking device is used for rigid connection with the rail. The modular platform unit is assembled from several platform beam and plate modules, which are slidably arranged between the sliding track beams on both sides. The modular platform unit is used for the load-bearing of the upper concrete structure construction and the protection of the operating track.

[0007] Preferably, the anti-derailment guiding mechanism includes a horizontal guide wheel and a vertical clamping wheel, wherein the horizontal guide wheel is in close contact with the inner side of the rail head, and the vertical clamping wheel is in close contact with the upper side of the rail head.

[0008] Preferably, the mechanical locking device includes a rail clamp and a pin positioning mechanism. The rail clamp is a hydraulically driven clamp with a clamping force of not less than 50kN. The pin of the pin positioning mechanism has a pin diameter of 40-60mm and is inserted into a positioning hole between the sleepers.

[0009] Preferably, the upper flange of the sliding track beam is fixedly provided with a channel steel slide rail, and the bottom of the platform beam module is connected with a steel slider, which is slidably connected in the channel steel slide rail.

[0010] Preferably, a demolition operation platform is provided at both ends of the sliding track beam and beyond the floor area of ​​the upper concrete structure, and a formwork scaffold is erected on the modular platform unit.

[0011] Preferably, hydraulic pushers are spaced apart on the sliding track beam, and the output end of the hydraulic pushers is hinged to the platform beam module, which is used to slide the platform beam module along the channel steel slide to the demolition operation platform on both sides.

[0012] Preferably, the platform beam-plate module includes a platform beam and a platform plate, which are assembled into a standard module by bolting together secondary beams, and a steel slider is welded to the bottom of the standard module.

[0013] On the other hand, the construction method for the concrete structure overpass across an operating track provided by the present invention is applied to the self-propelled track-crossing construction equipment described above, and includes the following steps: S1: During non-maintenance periods on the operating track, activate the walking wheelset of the track walking and locking system to drive the construction equipment to the designed construction position along the operating track. S2: Operate the mechanical locking device of the track walking and locking system to rigidly connect the construction equipment to the rails, and at the same time operate the height adjustment mechanism to make the modular platform unit contact the building foundation to form a stable construction platform. S3: Erect formwork scaffolding on the modular platform unit to carry out the construction of the upper concrete structure; S4: After the concrete structure of the upper cover has been cured, dismantle the formwork and scaffolding, and apply for a short-term suspension window for the operation of the track; S5: Within the skylight point, the sliding platform beam module is driven by the hydraulic jack to slide along the sliding track beam to the demolition operation platform, and the platform beam module is demolished in sections; S6: Release the mechanical lock, repeat steps S1-S5, and complete the next construction section.

[0014] Preferably, in step S1, the walking wheelset is driven by a motor to achieve autonomous walking on the operating track.

[0015] Preferably, in step S2, the rail clamp is activated to clamp the rail, and at the same time, the pin of the pin positioning mechanism is inserted into the positioning hole between the sleepers to achieve a rigid connection between the equipment and the operating track, forming a stable portal support platform.

[0016] As can be seen from the above technical solutions, compared with the prior art, the self-propelled track-crossing construction equipment and its construction method provided by the present invention have the following beneficial effects: 1. This invention enables equipment to move autonomously along the operating track by integrating motor-driven walking wheelsets, which greatly improves the efficiency of inter-construction site transfer; relying on the anti-derailment guide mechanism and the mechanical locking device with hydraulic rail clamps and pin positioning, it ensures that the equipment is rigidly connected to the track in the construction state, ensuring the reliability of the fixation; the modular platform unit simultaneously realizes the construction load-bearing function of the upper concrete structure and the protection function of the operating track, achieving multiple uses of a single structure; 2. This invention enhances the overall lateral displacement resistance of the support system through the diagonal bracing design between adjacent support columns on one side, thereby improving the stability of the support structure under complex working conditions. The cooperation between the sliding track beam and the sliding platform beam, combined with the demolition operation platform extending beyond the floor at both ends, provides stable guidance and independent safe working space for the sliding demolition of the platform beam, ensuring that the demolition process is orderly and controllable. 3. This invention completes the autonomous movement and positioning of equipment and the main construction of the upper concrete structure through non-skylight windows, and only carries out the segmented dismantling of platform beams and slabs within the skylight windows, minimizing the occupation of the normal passage of the operating track and ensuring the continuity and safety of the existing line operation. 4. This invention supports factory prefabrication and rapid on-site assembly, which not only improves construction accuracy but also enables the reuse of components, reduces construction costs and resource waste, and shortens the on-site construction cycle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the self-propelled track-crossing construction equipment of the present invention. Figure 2 This is a schematic diagram of the sliding structure of the standard module of the platform beam plate of the present invention; Figure 3 This is a schematic diagram of the hydraulic pusher of the present invention; Figure 4 This is a diagram of the concrete structure of the upper cover of the present invention; Figure 5 This is a schematic diagram of the track walking and locking system of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Support column; 2. Diagonal brace; 3. Sliding track beam; 4. Channel steel slide rail; 5. Platform beam; 6. Platform plate; 7. Dismantling operation platform; 8. Formwork scaffolding; 9. Upper concrete structure; 10. Operating track; 11. Steel slider; 12. Hydraulic jacking device; 13. Motor; 14. Horizontal guide wheel; 15. Vertical clamping wheel; 16. Rail clamp; 17. Pin positioning mechanism; 18. Traveling wheel pair. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of an exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The self-propelled track-crossing construction equipment provided by this invention includes a gantry support unit, a track walking and locking system, and a modular platform unit.

[0022] First, such as Figures 1-3As shown, symmetrical portal support units are constructed on both sides of the operating track 10. These portal support units are assembled from support columns 1, diagonal braces 2, and sliding track beams 3 via bolted connections, forming a stable prefabricated steel structure frame. This eliminates the need for on-site welding, significantly reducing on-site assembly time, facilitating subsequent disassembly and relocation for reuse, and preventing weather and environmental factors from affecting on-site construction, thus shortening the overall construction period. Support columns 1 are equipped with a height adjustment mechanism, which can utilize a combination of inner and outer tubes with multiple adjustment holes. By selecting different pin hole positions and inserting pins, the relative positions of the inner and outer tubes can be precisely fixed, achieving a stepped adjustment of the support column 1's height. Diagonal braces 2 are preferably arranged in an X-shape or herringbone pattern, with their ends rigidly connected to the sliding track beams 3, forming a stable spatial support system. This significantly enhances the support system's resistance to lateral displacement, especially effectively dispersing horizontal forces when trains generate vibration loads, preventing loosening or deformation of the support columns, ensuring the stability of the entire support structure, and solving the problem of insufficient reliability of existing support systems under vibration environments. A channel steel slide rail 4 is welded and fixed at the center of the upper flange of the sliding track beam 3. This not only provides stable guidance for the sliding of the modular platform unit, but also limits the lateral displacement of the modular platform unit through lateral baffles, preventing the module from shifting during the sliding process and laying the foundation for subsequent safe dismantling. Hydraulic jacks 12 are spaced on the sliding track beam 3 to provide smooth power for the dismantling of the platform beam module. The output end of the hydraulic jack 12 is hinged to the platform beam module to ensure that the jacking force is evenly transmitted to the module, avoiding damage caused by uneven force on the platform beam module during the sliding process.

[0023] Subsequently, as Figures 2-4 As shown, modular platform units are assembled and deployed. Each modular platform unit is composed of several platform beam-plate modules (platform beams 5 and platform plates 6) connected by bolts via secondary beams. These modular platform units are erected between the sliding track beams 3 on both sides. Each platform beam-plate module has a steel slider 11 connected to its bottom, which is embedded in the channel steel slide rail 4, providing conditions for subsequent hydraulic sliding dismantling. At both ends of the sliding track beams 3, and extending beyond the floor of the upper concrete structure 9, dismantling operation platforms 7 (such as those used in subway station superstructures) are installed. These platforms provide independent working space for the segmented dismantling of the platform beam-plate modules, preventing interference between construction personnel or equipment and the operating tracks and upper structure during dismantling, thus reducing operational risks.

[0024] The platform beams adopt a standard modular assembly design, which enables factory prefabrication and on-site assembly, reducing on-site processing workload. At the same time, it ensures tight connection between modules to form an overall load-bearing system. When used as the load-bearing foundation for the construction of the upper concrete structure 9, it can evenly transfer the weight of the formwork scaffold 8, the self-weight of the concrete, and the construction live load, avoiding structural damage caused by local stress concentration. When used as a protective canopy for the operating track 10, it can effectively prevent debris (such as steel bar ends and concrete fragments) generated during construction from falling onto the track, eliminating track operation safety hazards caused by debris, and solving the defect of the separation of load-bearing and protective functions in the existing technology.

[0025] like Figure 5 As shown, the track walking and locking system is key to achieving self-propelled and reliably fixed construction equipment. The walking wheelset 18 uses standard railway vehicle wheelsets to adapt to the gauge and surface shape of existing operating tracks, eliminating the need for track modifications and reducing the impact of construction on the original track structure. Driven by motor 13, the walking wheelset 18 can move autonomously along the track, enabling the construction equipment to move independently without relying on external traction equipment. This solves the problem of complete disassembly and reassembly of construction equipment during relocation in existing technologies, significantly improving relocation efficiency. The anti-derailment guiding mechanism, through horizontal guide wheels 14 and vertical clamping wheels 15, closely cooperates with the inner and upper sides of the rail head, respectively, to correct the construction equipment's trajectory in real time. Even with minor track irregularities, it can prevent the construction equipment from derailing or shifting, ensuring safe passage during relocation outside of designated track maintenance windows. After positioning, the equipment is rigidly fixed using a mechanical locking device: the hydraulically driven rail clamp 16 provides a clamping force of no less than 50kN to hold the rail, while the pin positioning mechanism 17 inserts pins with a diameter of 40-60mm into the positioning holes between the sleepers, providing double protection for absolute stability during construction. In this embodiment, the rail clamp 16 provides sufficient clamping force to ensure a tight fit between the construction equipment and the rail, preventing relative slippage caused by construction vibration; the pin positioning mechanism 17 further rigidly connects the construction equipment to the sleepers, forming a dual fixing effect of "rail surface clamping + sleeper positioning," completely solving the problem of insufficient reliability of construction equipment fixing in the prior art, ensuring that the construction equipment remains stable throughout the construction process and does not affect the construction accuracy of the upper concrete structure 9.

[0026] The self-propelled track-crossing construction equipment provided by this invention is divided into "non-maintenance window" and "maintenance window" work periods for construction. By rationally allocating the work content, interference with track operation is minimized. During non-maintenance window periods, the track walking and locking system is activated to allow the construction equipment to move to the designed position on its own; the mechanical locking device is operated to rigidly connect the construction equipment to the track; formwork scaffolding 8 is erected on the modular platform unit and the upper concrete structure 9 is constructed; after the structure is completed, a short maintenance window is applied for, and the hydraulic jacking devices 12, which are intermittently set on the sliding track beam 3, are activated to push and slide the platform beam modules sequentially to the demolition operation platforms 7 on both sides for segmented demolition, thereby minimizing the impact on track operation. The specific steps are as follows: Step 1: To address the construction limitations of the operating track 10 and the upper concrete structure 9, a modular design for the support equipment is implemented. The support columns 1, X-shaped or herringbone braces 2, and sliding track beams 3 are assembled into portal frame support units. All components are connected by bolts to form a stable prefabricated steel structure. The modular platform unit is assembled from platform beams 5 and platform plates 6 via secondary beams using bolted connections to form a standard module. Steel sliders 11 are welded to the bottom of the module. Channel steel slides 4 are welded to the upper flange of the sliding track beams 3, and hydraulic jacks 12 are installed at intervals.

[0027] Step Two: Integrate and debug the track walking and locking system. A simulated track identical to the operating track 10 is built in the factory for testing. Walking tests verify the smoothness and trajectory accuracy of the construction equipment's autonomous movement, ensuring the equipment can accurately reach the designed position during non-maintenance transfer periods. Locking tests simulate construction vibration loads to verify the fixing effect of the mechanical locking device, ensuring no equipment displacement during construction. Pre-testing avoids occupying maintenance periods during on-site debugging, further reducing operational interference. The walking wheelset 18 uses standard railway wheelsets with a flange height of 25-30mm and a tapered tread surface in contact with the rail. The anti-derailment guiding mechanism includes a horizontal guide wheel 14 and a vertical clamping wheel 15. The gap between the horizontal guide wheel 14 and the inner side of the rail head is no more than 2mm, and the gap between the vertical clamping wheel 15 and the upper side of the rail head is no more than 3mm, ensuring the gap with the rail meets safety standards. The mechanical locking device is equipped with a hydraulic rail clamp 16 and a pin positioning mechanism 17 to achieve reliable fixing during construction.

[0028] Step 3: During non-maintenance window periods, the construction equipment is autonomously moved and precisely positioned. The equipment's drive system is activated, allowing it to move autonomously along operating track 10 to the designed location of the next construction section. This relocation is completed during track operation gaps, without interrupting train traffic, thus resolving the problem of frequent maintenance of maintenance windows in existing technologies. Real-time monitoring and trajectory correction during the relocation process ensure the positioning accuracy of the construction equipment, guaranteeing the accuracy of subsequent construction and preventing errors in the superstructure construction due to positioning deviations.

[0029] Step Four: Perform rigid locking and state transition of the equipment. Operate the mechanical locking device, activate the hydraulic rail clamp 16 to clamp the rail, and simultaneously insert the pin of the pin positioning mechanism 17 into the positioning hole between the sleepers to achieve a rigid connection between the equipment and the track, forming a stable portal support platform. Simultaneously, operate the height adjustment mechanism to adjust the height of the support column 1, allowing the modular platform unit to contact the building foundation (such as a subway station), forming a stable construction platform. This further disperses the load of the construction equipment to the foundation on both sides of the track, preventing concentrated loads from damaging the track structure. The double fixing of the mechanical locking device ensures absolute stability of the construction equipment during construction. Even under the load of the upper construction and train vibration, there will be no loosening or displacement. This stable state provides a safe and reliable working platform for the construction of the upper concrete structure 9, ensuring the safety of construction personnel and equipment.

[0030] Step 5: Erect the formwork scaffolding 8 on the locked and positioned modular platform units to carry out the construction of the upper concrete structure 9. The modular platform units serve as the load-bearing foundation of the formwork scaffolding 8, stably bearing the construction load and ensuring that the formwork support system does not settle or deform, thereby guaranteeing the quality of the upper concrete structure 9. At the same time, the modular platform units act as a protective canopy, effectively isolating the construction area from the lower operating track 10, preventing construction debris or personnel from falling and causing operational accidents, and achieving safe isolation between construction and operation.

[0031] Step Six: After the concrete structure 9 of the upper cover is cured, dismantle the formwork scaffolding 8. Dismantle the formwork scaffolding 8 following a top-down principle to avoid the risk of scaffolding collapse. Apply for a short maintenance window, activate the hydraulic jacking device 12, and sequentially slide the platform beam modules along the channel steel slide rail 4 to the dismantling operation platforms 7 on both sides for segmented hoisting and dismantling. Applying for a maintenance window for sliding dismantling allows for concentrated module dismantling within a short downtime, reducing the number and duration of downtime and minimizing the impact on track operation. Synchronous control of the hydraulic jacking device 12 ensures consistent sliding speed for each module, preventing module collisions or jamming. The dismantling operation platforms 7 provide safe space for module hoisting, ensuring an efficient and safe dismantling process and solving the problem of high risk in existing sliding dismantling technologies.

[0032] Step 7: Equipment Relocation; After the platform module is dismantled, the mechanical lock is released, and the construction equipment can move to the new construction site on its own. Repeat the process of steps 3 to 6 above to achieve continuous and efficient cross-section flow operation without disassembling the entire equipment, which greatly shortens the relocation time. The repeated operation process can realize continuous flow operation of multiple construction sections, reduce equipment idleness and construction delays, significantly improve the overall efficiency of cross-operating track construction, and at the same time always ensure the safety of existing line operation and the construction safety of the superstructure, so as to achieve a dual improvement in social and economic benefits.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-propelled track-crossing construction equipment for crossing operating tracks, characterized in that, It includes gantry support units symmetrically arranged on both sides of the operating track (10), and the bottom of the gantry support unit is provided with a track walking and locking system; The portal support unit includes a support column (1), a brace (2) and a sliding track beam (3). The brace (2) is connected between adjacent support columns (1). The sliding track beam (3) is fixed to the top of the support column (1). A modular platform unit is provided between the sliding track beams (3) of the portal support units on both sides of the operating track (10). The track walking and locking system includes a walking wheel pair (18), an anti-derailment guide mechanism and a mechanical locking device. The walking wheel pair (18) is supported on the rail surface. The anti-derailment guide mechanism is clamped on the inner and upper sides of the rail head. The mechanical locking device is used to rigidly connect with the rail. The modular platform unit is assembled from several platform beam and plate modules. The platform beam and plate modules are slidably arranged between the sliding track beams (3) on both sides. The modular platform unit is used for the load-bearing of the upper concrete structure (9) and the protection of the operating track (10).

2. The track-mounted self-propelled cross-operation track construction equipment according to claim 1, characterized in that, The anti-derailment guiding mechanism includes a horizontal guide wheel (14) and a vertical clamping wheel (15). The horizontal guide wheel (14) is in close contact with the inner side of the rail head, and the vertical clamping wheel (15) is in close contact with the upper side of the rail head.

3. The track-mounted self-propelled cross-operation track construction equipment according to claim 1, characterized in that, The mechanical locking device includes a rail clamp (16) and a pin positioning mechanism (17). The rail clamp (16) is a hydraulically driven clamp with a clamping force of not less than 50kN. The pin diameter of the pin in the pin positioning mechanism (17) is 40-60mm, and the pin is inserted into the positioning hole between the sleepers.

4. The track-propelled cross-operation track construction equipment according to claim 1, characterized in that, The upper flange of the sliding track beam (3) is fixedly provided with a channel steel slide rail (4), and the bottom of the platform beam plate module is connected with a steel slider (11), which is slidably connected in the channel steel slide rail (4).

5. The track-mounted self-propelled cross-operation track construction equipment according to claim 1, characterized in that, At both ends of the sliding track beam (3) and beyond the floor area of ​​the upper concrete structure (9), a demolition operation platform (7) is provided, and a formwork scaffold (8) is erected on the modular platform unit.

6. The track-propelled cross-operation track construction equipment according to claim 5, characterized in that, Hydraulic pushers (12) are spaced apart on the sliding track beam (3). The output end of the hydraulic pusher (12) is hinged to the platform beam module and is used to slide the platform beam module along the channel steel slide (4) to the demolition operation platform (7) on both sides.

7. The track-mounted self-propelled cross-operation track construction equipment according to claim 1, characterized in that, The platform beam-plate module includes a platform beam (5) and a platform plate (6). The platform beam (5) and the platform plate (6) are assembled into a standard module by bolting together with secondary beams. A steel slider (11) is welded to the bottom of the standard module.

8. A method for constructing a concrete structure overpass across an operating track, applied to the track-mounted self-propelled cross-operating track construction equipment as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: During non-maintenance periods on the operating track (10), start the walking wheel pair (18) of the track walking and locking system to drive the construction equipment to walk along the operating track (10) to the designed construction position; S2: Operate the mechanical locking device of the track walking and locking system to rigidly connect the construction equipment to the rails, and at the same time operate the height adjustment mechanism to make the modular platform unit contact the building foundation to form a stable construction platform. S3: Erect formwork scaffolding (8) on the modular platform unit and carry out the construction of the upper concrete structure (9); S4: After the concrete structure (9) is cured, remove the formwork and scaffolding (8) and apply for a short-term suspension window for the operation track (10); S5: Within the skylight point, the sliding platform beam module is driven by the hydraulic jack (12) to slide along the sliding track beam (3) to the demolition operation platform (7) to demolish the platform beam module in sections; S6: Release the mechanical lock, repeat steps S1-S5, and complete the next construction section.

9. The construction method for a reinforced concrete structure covering an operational track according to claim 8, characterized in that, In step S1, the walking wheelset (18) is driven by a motor (13) to achieve autonomous walking on the operating track (10).

10. The construction method for a reinforced concrete structure covering an operating track according to claim 8, characterized in that, In step S2, the rail clamp (16) is activated to clamp the rail, and at the same time the pin of the pin positioning mechanism (17) is inserted into the positioning hole between the sleepers to achieve a rigid connection between the equipment and the operating track (10) and form a stable portal support platform.

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