Rail transit steel spring floating slab track leakage flushing plugging method and leakage flushing plugging system

Abstract

This application provides a method and system for flushing and sealing leakage in steel spring floating slab track for rail transit, belonging to the field of rail transit technology. The method includes: inserting a visualization device into the drainage ditch of the target treatment section through observation holes on the concrete track slab to investigate and confirm the location of leakage points, the distribution of leakage channels, the distribution of silt, and the condition of the drainage channels; inserting inflatable airbags through observation holes upstream and downstream of the target treatment section to isolate the drainage ditch in sections, forming independent and closed working areas; grouting the leakage channels within the working area to seal them; during the grouting process, flushing equipment is used to flush the working area to remove silt and flush away grout overflowing from the leakage channels, while simultaneously pumping out the grout overflowing during grouting and the wastewater generated during flushing through the observation hole downstream of the target treatment section; stopping flushing after grouting is completed and verifying the sealing effect.

Description

Technical Field

[0001] This application relates to the field of rail transit technology, and in particular to a method and system for flushing and sealing leakage in steel spring floating slab track beds for rail transit. Background Technology

[0002] Floating steel spring slab track is a vibration-damping track structure widely used in subway lines with high vibration control requirements. It forms a "mass-spring-damping" system by floating concrete track slabs on steel spring isolators, effectively isolating vibrations generated by train operation. However, under the influence of long-term train load vibration and structural settlement, the arch structure beneath the concrete track slab is prone to water leakage, and the leakage points are located in hidden spaces beneath the concrete track slab, making direct detection and remediation difficult. Currently, there is a lack of specific leakage control technology for floating steel spring slab track; existing methods still mainly rely on leakage control processes for ordinary track slabs.

[0003] Leakage control typically involves drilling and grouting directly into the concrete track slab and tunnel lining. However, for steel spring floating slab tracks, this method presents several problems: First, due to the vibration-damping gaps beneath the concrete track slab, the injected grout can easily flow back along these gaps, even entering the sleeves of the steel spring vibration isolators. This not only affects the vibration damping effect of the steel spring floating slab track but may also clog the central drainage channel. Second, to completely control hidden leaks, traditional methods often require lifting or breaking up parts of the concrete floating slab. This method is highly destructive, costly, and seriously threatens the normal operation of the track. More importantly, indiscriminate drilling and grouting leads to uncontrollable grout diffusion. Once the grout overflows and fills the vibration-damping gaps or encases the steel spring vibration isolators, the steel spring floating slab track will lose its floating ability, becoming a rigid "dead board," thus completely losing its vibration damping and noise reduction function and causing serious secondary engineering disasters. Therefore, there is an urgent need for a method to control hidden leaks that does not require breaking up the concrete track slab, does not affect operation, and does not damage vibration damping performance. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a method and system for flushing and sealing leakage in steel spring floating slab track beds for rail transit, aiming to at least partially solve the above-mentioned technical problems. The specific technical solution provided by this application is as follows.

[0005] As a first aspect of this application, a method for flushing and sealing leakage in a steel spring floating slab track bed for rail transit is provided, comprising the following steps:

[0006] Visualization equipment is placed into the drainage ditch of the target treatment section through the observation holes on the concrete track slab to investigate and confirm the location of the leakage point, the distribution of leakage channels, the distribution of silt, and the condition of the drainage channels.

[0007] Inflatable airbags are inserted through observation holes upstream and downstream of the target treatment section to isolate the drainage ditch in sections, forming independent and closed working areas.

[0008] Grouting was injected into the seepage channels within the work area to seal them;

[0009] During the grouting process, flushing equipment is used to flush the work area to remove silt and flush away the grout overflowing from the seepage channel. At the same time, the grout overflowing during the grouting process and the sewage generated by flushing are pumped out through the observation hole downstream of the target treatment section.

[0010] After grouting is completed, flushing is stopped, and the sealing effect is verified.

[0011] As a second aspect of this application, a leakage flushing and sealing system for steel spring floating slab track bed in rail transit is provided, comprising:

[0012] Visualization equipment is inserted into the drainage ditch of the target treatment section through the observation holes on the concrete track slab to detect the location of seepage points, the distribution of seepage channels, the distribution of silt, and the condition of drainage channels.

[0013] Inflatable airbags are inserted through observation holes upstream and downstream of the target treatment section to isolate the drainage ditch in sections and form independent and closed working areas.

[0014] Grouting equipment is used to inject grout into leakage channels to seal them;

[0015] Flushing equipment is used to flush the work area during grouting to remove silt and flush away grout overflowing from seepage channels; and

[0016] The pumping unit is used to pump out the accumulated water formed during isolation, the grout overflowing during grouting, and the sewage generated during flushing through observation holes upstream and downstream of the target treatment section.

[0017] In the embodiments of this application, the leakage flushing and sealing method and leakage flushing and sealing system for steel spring floating slab track bed of rail transit provided in this application accurately detect the leakage and siltation under the concrete track bed slab through visualization equipment, and use inflatable airbags to isolate the drainage culvert in sections upstream and downstream of the target treatment section to form an independent and closed working area, which effectively blocks the interference of flowing water. During the grouting process, the flushing equipment is used to flush and dredge the silt in the closed working area and the grout overflowing from the leakage channel, and at the same time, the flushed sewage is pumped out in time. This leakage flushing and sealing method and system realizes a closed-loop operation of the entire process, including detection, isolation, grouting, flushing and pumping, and verification. It does not require breaking the concrete track slab, and avoids the backflow of grout into the vibration damping gaps or wrapping the steel spring vibration dampers. Thus, while ensuring that the vibration damping performance of the steel spring floating slab track is not damaged, it completely solves the technical problems of difficult location of leakage points in hidden spaces, uncontrollable grout, and inability to verify the sealing effect. It significantly improves the success rate and durability of leakage treatment, while reducing the risk of engineering damage and the impact on line operation. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the steel spring floating slab track bed for rail transit in an embodiment of this application;

[0019] Figure 2 To Figure 1 The diagram shows the process of flushing and sealing leaks in a steel spring floating slab track bed for rail transit.

[0020] Explanation of reference numerals in the attached figures:

[0021] 11-Concrete track slab;

[0022] 12 - Tunnel secondary lining structure;

[0023] 13-Inverted arch structure;

[0024] 14- Steel spring vibration isolator;

[0025] 15 - Vibration damping gap;

[0026] 16-Observation hole;

[0027] 17-Central Ditch;

[0028] 18- Horizontal drainage ditch;

[0029] 21-Visualization equipment;

[0030] 22-Inflatable airbag;

[0031] 23- Flushing equipment; 231- Flushing pipeline;

[0032] 24 - Water purification tank; 241 - Upstream water pump;

[0033] 25 - Sedimentation filter tank; 251 - Downstream water pump. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0035] In realizing the concept of this application, it was discovered that traditional drilling and grouting methods are insufficient to address leakage problems in the concealed spaces beneath steel spring floating slab track beds: grout easily flows back into vibration-damping gaps or encases the steel spring vibration isolators, thus losing the vibration-damping function of the steel spring floating slab track bed; interference from flowing water makes the grouting sealing effect uncontrollable; and breaking up the concrete track bed slab for repairs is highly destructive and disrupts operations. Furthermore, traditional methods lack effective means of removing sediment accumulated under the slab, which blocks leakage channels, further exacerbating the difficulty of remediation. Based on this, this application provides a method and system for flushing and sealing leakage in steel spring floating slab track for rail transit. The method uses visualization equipment to detect the location of leakage and siltation, and uses inflatable airbags to isolate the drainage ditch in sections upstream and downstream of the target treatment section to form an independent and closed working area. During the grouting process, flushing equipment is used to remove siltation and flush away grout overflowing from the leakage channel. Finally, the sealing effect is verified, achieving concealed leakage treatment without breaking the concrete track slab, without damaging the vibration reduction performance, and with full process control.

[0036] Figure 1 This is a schematic cross-sectional view of the steel spring floating slab track bed for rail transit in an embodiment of this application; Figure 2 To Figure 1 The diagram shows the process of flushing and sealing leaks in a steel spring floating slab track bed for rail transit.

[0037] As a first aspect of this application, a method for flushing and sealing leakage in a steel spring floating slab track bed for rail transit is provided, comprising the following steps:

[0038] The visualization device 21 is placed into the drainage ditch of the target treatment section through the observation hole 16 on the concrete track slab 11 to explore and confirm the location of the leakage point, the distribution of leakage channels, the distribution of silt and the condition of the drainage channel.

[0039] Inflatable airbags 22 are inserted through observation holes 16 upstream and downstream of the target treatment section to isolate the drainage ditch in sections and form independent and closed working areas.

[0040] Grouting was injected into the seepage channels within the work area to seal them;

[0041] During the grouting process, the flushing equipment 23 is used to flush the work area to remove silt and flush away the grout overflowing from the seepage channel. At the same time, the grout overflowing during the grouting process and the sewage generated by flushing are extracted through the observation hole downstream of the target treatment section.

[0042] After grouting is completed, flushing is stopped, and the sealing effect is verified.

[0043] In this embodiment, the leakage flushing and sealing method provided in this application uses inflatable airbags 22 to isolate the drainage ditch (mainly referring to the central ditch 17, where water flows through transverse ditch 18 to the central ditch 17 and flows along the longitudinal extension direction of the central ditch 17) in segments. This achieves precise isolation of the leakage area, effectively blocking the water flow path and creating a closed and controllable working environment for targeted treatment, avoiding sewage diffusion and secondary pollution. Specifically, the water level in the working area can be quickly drained after sealing, completely exposing the leakage points that were originally covered by water flow. This facilitates the simultaneous implementation of grouting and flushing operations. During the grouting process, the grout overflowing from the leakage channel can be flushed away in time by the flushing equipment 23, preventing the grout from spreading to the vibration damping gap 15 or the steel spring vibration isolator 14. Meanwhile, the visualization device 21 penetrates the enclosed space under the concrete track slab 11 to provide real-time imaging of the leakage channels, silt distribution, and treatment process, enabling precise operation that is "visible and controllable." This completely changes the traditional "blind operation" mode, ensuring that the treatment process is traceable and the effect is verifiable. During the grouting process, the diffusion and flushing effect of the grout can be monitored in real time to prevent uncontrolled outflow of grout. In addition, relying on the existing observation holes 16 and drainage ditches as operating channels, the entire process can be completed without removing or damaging the concrete track slab 11. The leakage treatment is completed through internal operations, maximizing the protection of the vibration reduction performance and structural integrity of the steel spring floating slab track. Furthermore, the use of modular and lightweight equipment combined with segmented treatment technology allows for rapid completion of construction within the "maintenance window" of the rail transit system. Precise isolation and synchronous grouting and flushing significantly reduce the construction time and minimize interference with line operation.

[0044] In some embodiments, the above-mentioned leakage sealing and flushing method further includes: during the grouting process, the accumulated water formed by the inflatable airbag 22 is extracted through the observation hole 16 upstream of the target treatment section and used as the flushing water source for the flushing device 23.

[0045] In this embodiment, by extracting the accumulated water formed by the upstream inflatable airbag during the grouting process as the flushing water source for the flushing device 23, the on-site self-sufficiency of flushing water is achieved, reducing the need for additional external water sources, ensuring continuous water supply during simultaneous grouting and flushing operations, and improving the independence and convenience of construction.

[0046] In some embodiments, the grout overflowing during grouting and the wastewater generated during flushing are extracted through the observation hole 16 downstream of the target treatment section, and after sedimentation and filtration treatment, they are used as the flushing water source for the flushing equipment.

[0047] In this embodiment, the grout overflow and flushing wastewater extracted from the downstream observation hole 16 are treated by sedimentation and filtration and then reused as the flushing water source for the flushing equipment 23. This achieves the purification and recycling of construction wastewater, effectively reduces the impact of wastewater discharge on the external environment, reduces the external water supply requirements during construction, ensures continuous water supply for flushing operations, and improves the environmental friendliness and resource utilization efficiency of construction.

[0048] In some embodiments, verifying the sealing effect includes: after grouting is completed, using a visualization device 21 to explore the leaking channel after sealing, and confirming that the grout is densely filled and there is no overflow.

[0049] In this embodiment of the application, after grouting is completed, the leakage channel after sealing is explored by the visualization device 21 to confirm that the grout is filled densely and there is no overflow. This realizes the real-time visualization verification of the sealing effect, overcomes the defect of the traditional blind injection process that cannot confirm the grout filling status, ensures that the leakage channel is effectively sealed, avoids the risk of secondary leakage caused by insufficient filling or grout overflow, and improves the reliability and traceability of the treatment quality.

[0050] As a second aspect of this application, a leakage flushing and sealing system for steel spring floating slab track bed in rail transit is provided, comprising:

[0051] The visualization device 21 is inserted into the drainage ditch of the target treatment section through the observation hole 16 on the concrete track slab 11 to explore the location of the seepage point, the distribution of the seepage channel, the distribution of the silt and the condition of the drainage channel.

[0052] Inflatable airbags 22 are inserted through observation holes 16 upstream and downstream of the target treatment section to isolate the drainage ditch in sections and form independent and closed working areas.

[0053] Grouting equipment is used to inject grout into leakage channels to seal them;

[0054] Flushing equipment 23 is used to flush the work area during grouting to remove silt and flush away grout overflowing from seepage channels; and

[0055] The pumping assembly is used to pump out the accumulated water formed during isolation, the grout overflowing during grouting, and the sewage generated during flushing through the observation holes 16 upstream and downstream of the target treatment section.

[0056] In this embodiment, the leakage flushing and sealing system provided by this application uses a visualization device 21 to detect the location of leakage points and the distribution of leakage channels. Inflatable airbags 22 are used to isolate the drainage ditch in sections to form independent, closed working areas. During grouting, a flushing device 23 is simultaneously activated to flush the working areas, removing silt and flushing away grout overflowing from the leakage channels. Grout is injected into the leakage channels through the grouting device for sealing. Pumping components are used to extract the accumulated water formed by the isolation through the upstream observation hole and to extract the grout overflowing during grouting and the wastewater generated during flushing through the downstream observation hole. This achieves a fully integrated operation from detection, isolation, simultaneous grouting and flushing to wastewater pumping and reuse, effectively solving the problems of difficult location in the treatment of leakage in concealed spaces under the slab, easy grout backflow during grouting, or grout wrapping around steel spring vibration isolators, without damaging the track bed structure. The leakage flushing and sealing system provided by this application is modular and can be disassembled and reassembled. All components can be quickly deployed and retrieved through the observation holes, adapting to the tight construction schedule of subway tunnel nighttime "skylight windows".

[0057] In some embodiments, the above-described leakage flushing and sealing system further includes a circulating purification component, comprising a clean water tank 24 and a sedimentation filter tank 25. The circulating purification component is used to purify the liquid recovered by the pumping component and, after purification, serves as the flushing water source for the flushing device 23.

[0058] In this embodiment, by setting up a circulating purification component including a water purification tank 24 and a sedimentation filter tank 25, the liquid recovered by the pumping component (including the accumulated water formed by isolation, the grout overflowing during grouting, and the wastewater generated during flushing) can be purified and used as the flushing water source for the flushing equipment 23. This achieves the recycling of water resources, avoids secondary pollution caused by direct discharge of wastewater, and reduces dependence on external water sources during construction. Especially in long-distance tunnels, access to external water sources often requires laying hundreds of meters of water hose, which is time-consuming and labor-intensive. The circulating purification component effectively solves this engineering problem.

[0059] In some embodiments, the pumping assembly includes: an upstream pump 241 for pumping the accumulated water formed during isolation to a clean water tank 24 to provide a flushing water source for the flushing equipment 23; and a downstream pump 251 for pumping the grout overflowing during grouting and the wastewater generated during flushing to a sedimentation and filtration tank 25 for sedimentation and filtration treatment.

[0060] In this embodiment, an upstream water pump 241 pumps the accumulated water from the isolation area to a clean water tank 24 to provide a flushing water source for the flushing equipment 23. Simultaneously, a downstream water pump 251 pumps the overflowing grout from the grouting process and the wastewater generated during flushing to a sedimentation and filtration tank 25 for sedimentation and filtration. This achieves targeted water supply and classified wastewater collection, ensuring a continuous water supply for flushing. The division of labor between the upstream and downstream pumps ensures unidirectional water flow within the operating area, preventing secondary contamination of the flushed area. Furthermore, the upstream and downstream pumps can independently control their flow rates, dynamically adjusting them according to the actual needs during the flushing process, achieving refined hydraulic management.

[0061] In some embodiments, a return pipe is provided between the purified water tank 24 and the sedimentation filter tank 25. The return pipe is used to return the purified water from the sedimentation filter tank 25 to the purified water tank 24, thereby realizing the recycling of the rinsing water source. Furthermore, a filter can be added to the return pipe to remove tiny suspended solids and protect the nozzle of the rinsing device 23 from clogging.

[0062] In this embodiment, by setting a return pipeline between the clean water tank 24 and the sedimentation filter tank 25, the water purified by the sedimentation filter tank 25 is returned to the clean water tank 24, thereby realizing the recycling of the rinsing water source, reducing water consumption during construction, and ensuring the continuous water supply capacity of the rinsing equipment 23.

[0063] In some embodiments, the flushing device 23 includes at least two flushing pipes 231 to cover the work area. Exemplarily, four flushing pipes 231 may be configured, with the four flushing pipes 231 respectively arranged on the upstream and downstream sides of the work area to ensure no dead zones in the flushing range. The multi-pipe arrangement can simultaneously impact the sludge from multiple directions, creating a turbulent effect and significantly improving sludge removal efficiency.

[0064] In some embodiments, the flushing pipe 231 is provided with multiple water spray holes spaced apart along its length. The distributed arrangement of the water spray holes ensures that the flushing water flow can evenly cover the entire working area, guaranteeing the thorough removal of silt and overflow slurry. The diameter and spacing of the water spray holes can be customized according to the characteristics of the silt. For example, small diameter and high water pressure can be used for severely compacted silt, while large diameter and low water pressure can be used for loose silt.

[0065] In some embodiments, the flushing pipe 231 passes through the vibration-damping gap 15 between the concrete track slab 11, the tunnel secondary lining structure 12, and the invert arch structure 13, and enters the drainage ditch. This arrangement makes full use of the existing structural gaps, eliminating the need for additional openings and avoiding damage to the steel spring floating slab track vibration-damping structure and the main tunnel structure. It also ensures that the flushing pipe 231 can be precisely extended to the work area. The vibration-damping gap 15 itself is a reserved gap between the concrete track slab 11, the tunnel secondary lining structure 12, and the invert arch structure 13, and its width is sufficient to accommodate the flushing pipe 231 without affecting the normal operation of the steel spring vibration isolator 14.

[0066] In some embodiments, the visualization device 21 is a pipeline robot or an endoscope. For example, when an endoscope is selected as the visualization device 21, multiple endoscopes can be configured to work collaboratively. Each endoscope is deployed at different locations within the work area. Through this distributed deployment of multiple devices, full-coverage monitoring of the entire work area is achieved, ensuring that there are no blind spots in the monitoring of leakage point detection, flushing process, and grouting effect verification, thus guaranteeing operational accuracy. Multiple endoscopes can transmit images to a ground control console in real time via wireless or wired means, allowing construction personnel to observe the work from multiple angles simultaneously, significantly improving operational efficiency and safety.

[0067] In summary, existing technologies for treating hidden leaks under steel spring floating slab track slabs have long faced the challenges of "difficult location, complex treatment, and high destructiveness." The main problems are as follows: First, reliance on experience-based judgment or partial excavation leads to unclear leak location, resulting in "blind operation" and increasing the risk of secondary leaks. Second, traditional demolition-based treatment requires large-scale removal of the concrete track slab, which not only damages the structural integrity but may also harm the steel spring vibration isolators, causing reduced vibration damping performance and track bed settlement, among other safety hazards. Third, the construction period is long, it occupies a large amount of track space, and requires prolonged operational interruptions, severely impacting urban traffic and increasing the economic burden on operators. Based on this, this application provides a method and system for flushing and sealing leakage in steel spring floating slab track beds for rail transit. Relying on existing observation holes and drainage ditches as working channels, the entire process adopts trenchless internal operation, without damaging the main structure of the steel spring floating slab track bed and the steel spring vibration isolators. This achieves zero interference and zero damage to the main structure of the track bed and the vibration isolators, significantly reducing construction costs and the difficulty of later maintenance, and ensuring the long-term safe operation of the line.

[0068] First, by utilizing pipeline robots or endoscopes for full-process visual monitoring, real-time imaging of leak points, silt distribution, and the treatment process is achieved. This transforms what was originally a "blind" treatment of a hidden project into a visible and precise operation, completely eliminating the fatal risks of grout leakage and accidental sealing of steel spring vibration isolators. Second, inflatable airbags are used to quickly construct temporary water-retaining walls upstream and downstream of the drainage ditch, creating an independent and enclosed waterless working area in the flowing water environment, achieving "flexible interception." Third, flushing equipment is introduced to thoroughly flush away silt and overflowing grout from under the slabs, leaving no blind spots. Finally, the sealing effect is verified under visual monitoring, forming a standardized production line of "exploration, isolation, grouting, flushing + pumping, and verification."

[0069] The leakage flushing and sealing method and system provided in this application can complete the core treatment process within the "maintenance window" of rail transit, without occupying the operating line for a long time. The construction efficiency is improved by more than 60% compared with traditional methods, the construction cycle is significantly shortened, and the interference with the normal operation of the line is minimized, reducing operational economic losses. At the same time, the treatment effect is stable, which can avoid secondary leakage, extend the service life of the track bed, effectively slow down the aging of the track bed, and reduce the risk of operation and maintenance accidents caused by leakage. It meets the core needs of "safe operation and maintenance and long-term operation" in the industry, provides a standardized technical solution for the treatment of similar track bed leakage, and fills the technical gap in the efficient treatment of hidden leakage in the industry.

[0070] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for flushing and sealing leakage in a steel spring floating slab track bed for rail transit, characterized in that, Includes the following steps: Visualization equipment is placed into the drainage ditch of the target treatment section through the observation holes on the concrete track slab to investigate and confirm the location of the leakage point, the distribution of leakage channels, the distribution of silt, and the condition of the drainage channels. Inflatable airbags are inserted through observation holes upstream and downstream of the target treatment section to isolate the drainage ditch in sections, forming independent and closed working areas. Grouting was performed to seal the leakage channels within the work area. During the grouting process, the working area is flushed using flushing equipment to remove the silt and flush away the grout overflowing from the leakage channel. At the same time, the grout overflowing during the grouting process and the sewage generated during flushing are extracted through the observation hole downstream of the target treatment section. After grouting is completed, flushing is stopped, and the sealing effect is verified.

2. The leakage flushing and sealing method according to claim 1, characterized in that, Also includes: During the grouting process, the water accumulated in the airbag isolation area is extracted through the observation hole upstream of the target treatment section and used as the flushing water source for the flushing equipment.

3. The leakage flushing and sealing method according to claim 1, characterized in that, After extracting the grout overflowing during the grouting process and the wastewater generated during flushing through the observation hole downstream of the target treatment section, the method further includes: After sedimentation and filtration, it is used as the rinsing water source for the rinsing equipment.

4. The leakage flushing and sealing method according to claim 1, characterized in that, The verification of the blocking effect includes: After grouting is completed, the sealed leakage channel is inspected using the visualization device to confirm that the grout is densely filled and there is no overflow.

5. A leakage flushing and sealing system for steel spring floating slab track bed in rail transit, characterized in that, include: Visualization equipment is inserted into the drainage ditch of the target treatment section through the observation holes on the concrete track slab to detect the location of seepage points, the distribution of seepage channels, the distribution of silt, and the condition of drainage channels. Inflatable airbags are inserted through observation holes upstream and downstream of the target treatment section to isolate the drainage ditch in sections and form independent and closed working areas. Grouting equipment is used to inject grout into the leakage channel for sealing; Flushing equipment is used to flush the working area during the grouting process to remove the silt and flush away the grout overflowing from the leakage channel; as well as The pumping assembly is used to pump out the accumulated water formed during isolation, the grout overflowing during grouting, and the sewage generated during flushing through observation holes upstream and downstream of the target treatment section.

6. The leakage flushing and sealing system according to claim 5, characterized in that, Also includes: The circulating purification component includes a water purification tank and a sedimentation filter tank. The circulating purification component is used to purify the liquid recovered by the water pumping component and, after purification, serves as the rinsing water source for the rinsing equipment.

7. The leakage flushing and sealing system according to claim 6, characterized in that, The pumping assembly includes: An upstream water pump is used to pump the accumulated water formed during isolation to the clean water tank, providing a rinsing water source for the rinsing equipment; and Downstream water pumps are used to pump the grout overflowing during the grouting process and the wastewater generated during rinsing to the sedimentation and filtration tank for sedimentation and filtration treatment.

8. The leakage flushing and sealing system according to claim 6, characterized in that, A return pipe is provided between the water purification tank and the sedimentation filter tank. The return pipe is used to pump the purified water from the sedimentation filter tank back to the water purification tank, thereby realizing the recycling of the rinsing water source.

9. The leakage flushing and sealing system according to claim 5, characterized in that, The flushing equipment includes at least two flushing pipes to cover the work area.

10. The leakage flushing and sealing system according to claim 5, characterized in that, The visualization device is a pipeline robot or an endoscope.

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