A method for treating a ballastless track

Abstract

The application provides a treatment method for ballastless track, and relates to the field of railway and track traffic engineering maintenance, and the treatment method comprises the following steps: obtaining track defect positions in a standard length of steel rail; determining different treatment intervals according to different defect positions, and the edges of the treatment intervals are cutting positions; removing fasteners of the steel rail in the treatment intervals, cutting the steel rail according to the cutting positions, and separating at least part of track plates; repairing the treatment intervals, restoring the steel rail, and installing the fasteners. In view of multiple track defects, the treatment areas are separately divided, the deviation is corrected by cutting in a separate manner, the construction range is reduced, and the safety of the track is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway and track engineering maintenance, in particular to a method for rectifying ballastless track. BACKGROUND

[0002] The high-speed railway in China mainly adopts ballastless track structure, which has the characteristics of small deformation, high reliability, strong bearing capacity, less routine maintenance and long service life, etc. However, the geological conditions in China are diverse, and the environmental conditions are complex and changeable. The ballastless track structure of some sections of the operating line has deviated, and rectification operation needs to be performed on the ballastless track structure.

[0003] At present, the transverse adjustment amount of the fastener adjustment method is very small, which is only a temporary treatment measure and cannot fundamentally solve the problem of ballastless track deviation. The method of using steel rail whole stripping grouting for rectification and lifting causes the construction range to be too large, and the number of continuously loosened fasteners is large, which has a greater impact on track safety. At the same time, in high-temperature or low-temperature environments, the danger caused by the fastener to the track will be further increased. SUMMARY

[0004] The present application provides a method for rectifying ballastless track to solve the problem of how to ensure track safety and reduce the construction range of ballastless track in high-temperature or cold environments.

[0005] The present application provides a method for rectifying ballastless track, which includes: obtaining the track defect position in a standard length of steel rail; determining different rectification intervals according to different defect positions, the edges of the rectification intervals being cutting positions; removing the fasteners of the steel rail in the rectification interval, cutting the steel rail according to the cutting positions, and separating at least part of the track slab; repairing the rectification interval, and restoring the steel rail and installing the fasteners.

[0006] Further, the defect position includes an explicit defect position; the obtaining of the track defect position in a standard length of steel rail includes: obtaining the plane and elevation of each track slab in a standard length of steel rail; comparing the plane and elevation of each track slab with the track standard data to determine the transverse adjustment amount and the lifting amount, and determine the explicit defect position of the track.

[0007] Further, the defect position also includes an implicit defect position; the obtaining of the track defect position in a standard length of steel rail also includes: obtaining first data of each position of each track slab, the first data being data that can reflect the quality of each track slab; comparing the first data with the track slab standard data to determine the defect position of each track slab, and determine the implicit defect position of the track.

[0008] Further, in the state that the track plate has no explicit defect and has implicit defect, the method further comprises: in the extending direction of the steel rail, the interval formed by the two ends of the defect position in the vertical direction is the treatment interval, and the edge of the treatment interval is the cutting position.

[0009] Further, in the state that the track has explicit defect, the method further comprises: in the extending direction of the steel rail, the interval formed by the two ends of the defect position in the vertical direction is the treatment interval, and the edge of the treatment interval is the cutting position.

[0010] Further, in the state that the track has explicit defect, the repairing of the treatment interval comprises: removing the elastic gasket of the base groove, and cutting the base groove; arranging a plurality of grouting grooves penetrating the base in the base groove, pre-burying a grouting pipe in the grouting groove, so that the grouting pipe communicates with the base groove; installing the track plate, and adjusting the track plate; and injecting grouting into the base groove through the grouting pipe.

[0011] Further, in the state that the track has implicit defect, the repairing of the treatment interval further comprises: cutting around the implicit defect position, so that the part of the track plate having the implicit defect is separated from the track plate; and pouring and repairing the cut part.

[0012] Further, the grouting of the base groove comprises: when the adjustment amount of the track plate is less than or equal to a preset threshold, injecting organic material into the base groove; and when the adjustment amount of the track plate is greater than the preset threshold, injecting inorganic material into the base groove.

[0013] Further, the cutting of the steel rail according to the cutting position and the separation of at least part of the track plate comprise: cutting the steel rail according to the cutting position; moving the steel rail to the two sides of the track plate as a running rail of the carrying device by the carrying device; placing the carrying device on the running rail, and separating the track plate by moving the running rail by the carrying device.

[0014] Further, the separating of the track plate by the carrying device moving on the running rail comprises: laying a supporting device on the adjacent track plate of the track plate; and transferring the track plate to the supporting device by moving the carrying device along the extending direction of the running rail.

[0015] The embodiment of the present application provides a treatment method of a ballastless track, which comprises the following steps: obtaining a track defect position in a standard length of steel rail; determining different treatment intervals according to different defect positions, wherein the edge of the treatment interval is a cutting position; removing fasteners of the steel rail in the treatment interval, cutting the steel rail according to the cutting position, and separating track plates; repairing the treatment interval, and restoring the steel rail and installing the fasteners. In the standard length of steel rail, different treatment intervals are divided according to the defect position, so that the whole standard steel rail can be avoided to be removed, thereby reducing the construction range, reducing the influence of construction on the surrounding, and realizing the transverse correction and lifting of the track plate, so that the construction efficiency is high, and the method is suitable for skylight construction. Meanwhile, the treatment interval construction can effectively avoid the continuous removal of the fasteners of the steel rail, reduce the number of removed fasteners, and further ensure the safety of the track. Especially in high-temperature and cold environments, the removal of the fasteners can further increase the danger of the track, and directly affects the safety of the track. Therefore, by dividing the treatment interval, the number of fasteners can be reduced, and the continuous removal of the fasteners can be avoided, so that the safety of the track is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A flowchart of a treatment method of a ballastless track is provided for the embodiment of the present application.

[0017] Figure 2 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0018] Figure 3 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0019] Figure 4 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0020] Figure 5 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0021] Figure 6 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0022] Figure 7 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application.

[0023] Figure 8 A flowchart of another treatment method of a ballastless track is provided for the embodiment of the present application. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0026] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0027] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. The term "connection," unless otherwise specified, includes both direct and indirect connections.

[0028] The ballastless track improvement method provided in this specific embodiment is applicable to the construction of any type of ballastless track and to construction in any environmental type. For example, this improvement method is applicable to the construction of CRTSⅢ type slab track (a new type of unit slab track with shoulders; hereinafter, CRTSⅢ type slab track refers to a new type of unit slab track with shoulders) ballastless track; for example, this improvement method is applicable to the construction of ballastless track in cold regions; for example, this improvement method is applicable to the construction of ballastless track in high-temperature regions. For ease of explanation, the following description uses the application of this improvement method to the construction of CRTSⅢ type slab track ballastless track in cold regions as an example.

[0029] In some embodiments, such as Figure 1 As shown, Figure 1 A flowchart illustrating a method for improving ballastless track is provided. The method includes the following steps:

[0030] Step S1, in a standard length of steel rail, the track defect position is obtained.

[0031] Specifically, the standard length of the steel rail in our country is 12.5 meters and 25 meters. The super heavy and heavy rail adopts the standard length of 25 meters, and other types of rail can adopt the standard length of 12.5 meters and 25 meters. The steel rail is laid on the ballastless track, and the CRTS III type slab ballastless track structure includes track slab, self-compacting concrete layer and base from top to bottom. The self-compacting concrete layer is poured through the pouring hole reserved on the track slab to make the track slab and the self-compacting concrete layer into a whole. It needs to be emphasized that in some roadbeds or bridges, the unit slab does not have a self-compacting concrete layer, but a boss is directly poured through the pouring hole reserved on the track slab to make the boss and the track slab into a whole. Whether it is a boss or a self-compacting concrete layer, it plays a role of limiting horizontally and vertically between the base. That is, the base has a base groove, and the self-compacting concrete layer or the boss forms a limiting protrusion at the position corresponding to the base groove during pouring, and the limiting protrusion and the base groove cooperate to realize the horizontal and vertical limiting between the self-compacting concrete layer or the boss and the base. At the same time, in order to facilitate the separation of the self-compacting concrete layer or the boss and the base during subsequent repair, an isolation layer is arranged between the self-compacting concrete layer or the boss and the base.

[0032] In a standard length of steel rail, the track defect position is obtained. The track defect includes track explicit defect and implicit defect. The explicit defect includes track lateral deviation and vertical collapse and protrusion. The implicit defect includes cracks in the track slab, but it does not cause the track to deviate. Whether it is an explicit defect or an implicit defect, the track needs to be rectified. In the standard length of the steel rail, multiple defects may occur, for example, track settlement may occur at some positions, and cracks may occur in the track slab at some positions. For multiple defects, they should be rectified respectively, and multiple regions can be rectified at the same time or one by one. The present case illustrates the rectification steps of one rectification interval. It needs to be emphasized that if the same defect position has both explicit defect and implicit defect, the explicit defect can be rectified first, and then the implicit defect can be rectified, or they can be rectified at the same time. The details will be described below. The specific way to obtain the track defect position is not limited, for example, the track plane and elevation data are directly obtained by a measuring machine, the deviation of the track is judged through the data, and then the position of the defect and the lateral adjustment amount and the vertical lifting amount are determined. For example, the quality of the track slab is detected by a detection device, and the defect condition and position of the track slab are judged through the detected data. The specific details will be described below.

[0033] Step S2, different rectification intervals are determined according to different defect positions, and the edges of the rectification interval are cutting positions.

[0034] Specifically, after determining the position of the track defect, the defect position needs to be remedied, so the remediation interval needs to be determined. The remediation interval should be larger than the defect position area. The larger the remediation interval range, the more the number of fasteners that need to be removed subsequently, and the greater the danger to the track. At the same time, in cold and high-temperature areas, the temperature will further increase the impact on the fasteners, and the continuous removal of the fasteners will further increase the danger to the track. The specific remediation interval can be determined according to actual needs. After determining the remediation interval, mark the edges of the remediation interval, which are the positions that need to be cut subsequently. It should be emphasized that the remediation interval determined for different types of defects is different. For overt defects, the entire track slab that has deviated needs to be separated, so the remediation interval is the area where the entire track slab is located. For hidden defects, the detection device finds that part of the track slab is defective, and the defective part can be replaced or the entire track slab can be replaced. If the defective part is replaced, the interval formed by the two ends of the defect position in the vertical direction is the remediation interval, and the edges of the remediation interval are the cutting positions. If the entire track slab is replaced, the interval formed by the two ends of the track slab in the vertical direction is the remediation interval, and the edges of the remediation interval are the cutting positions.

[0035] Step S3: removing the fasteners of the steel rail in the remediation interval, cutting the steel rail according to the cutting position, and separating at least part of the track slab.

[0036] Specifically, the fasteners of the steel rail in the remediation interval are removed, and the removed fasteners should be uniformly arranged and stored. The steel rail is cut using a cutting device according to the marked position, and the cut steel rail is moved to the two sides of the track using a carrying device, and the track slab is separated. It should be noted that for overt defects, the entire track slab involving the defect position is lifted using a carrying device, so that the track slab is separated from the base. It should be emphasized that for tracks with a self-compacting concrete layer, the track slab and the self-compacting concrete layer are fixed as a whole, and the separation of the track slab from the base can be understood as the separation of the track slab and the self-compacting concrete layer as a whole from the base. For tracks without a self-compacting concrete layer, the track slab and the boss are fixed as a whole, and the separation of the track slab from the base can be understood as the separation of the track slab and the boss as a whole from the base. The separation of the track slab from the base described in the following text is the separation of the track slab and the self-compacting concrete layer as a whole from the base, or the separation of the track slab and the boss as a whole from the base. For hidden defects, the entire track slab involving the defect position is lifted using a carrying device, so that the track slab is separated from the base. If a local repair scheme is adopted, the track slab at the defect position is cut off using a cutting device, so that part of the track slab is separated from the base.

[0037] Step S4: repairing the remediation interval.

[0038] Specifically, for obvious defects, after peeling off the track plate, the base groove needs to be cut. After removing the elastic pad inside the groove, the side of the base plate groove is cut and chiseled according to the offset direction of the track and the determined lateral adjustment data. The cutting and chiseling thickness is determined according to the lateral adjustment data. After chiseling, the chiseled surface should be flat, and a grouting groove should be set for subsequent grouting of the base plate groove. The specific location of the grouting groove is not limited. For example, grouting holes can be set on the track plate or on the base plate groove.

[0039] After the grooves in the base plate are cut, an isolation layer, such as geotextile, can be laid between the base and the track slab. This isolation layer ensures the separability of the track slab from the base during subsequent repairs, enabling continuous repair of the track structure. The previously separated track slab is then moved back, and rough, pressing, and fine-tuning are performed. Before laying the track slab, the bottom of the track slab needs to be cleaned and washed. The edge lines of the track slab are laid out and marked with chalk lines. The edge lines and lifting height of the track slab are determined based on the lateral adjustment and vertical lifting amounts. The track slab is then roughly adjusted, and finally, an adjustable support device is used for fine-tuning to determine the final position of the track slab. After the track slab is finely adjusted, in order to prevent the height of the track slab from changing during grouting, a track slab clamping device can be set up. When clamping the track slab, both sides of the same clamping device should be tightened at the same time and subjected to synchronous force to prevent the track slab from floating during grouting and the disturbance of the construction equipment from causing the track slab displacement to exceed the accuracy range. After the track slab is clamped and fixed by symmetrically arranged track slab clamping devices, the track slab edge sealing construction is carried out.

[0040] After the track slab is finely adjusted and fixed, grout is injected into the gaps between the track slab and the base through the grouting holes to ensure that the track structure fits tightly together. There is no limitation on the type of grout material; organic or inorganic materials can be injected, and the choice can be made according to the lifting amount of the track.

[0041] Specifically, for hidden defects, new track slabs can be directly replaced, followed by grouting to ensure the track structure fits tightly together; alternatively, partial replacement can be performed by cutting off the track slab at the defective location with a cutting device and then re-injecting concrete for repair.

[0042] Step S5, and restore the rails and install the fasteners.

[0043] Specifically, after the grouting of the track slab joints is completed, the rails are lifted and moved to the track slab support platform by a transport device to release stress on the adjacent rails. Then the rails are welded. After welding, the fasteners are installed and finely adjusted to ensure that the rails meet the smoothness requirements.

[0044] This invention provides a method for rectifying ballastless track. The method includes: identifying the location of track defects within a standard-length rail section; determining different rectification zones based on the different defect locations, with the edges of the rectification zones serving as cutting points; removing rail fasteners within the rectification zones; cutting the rails according to the cutting points; separating the track slabs; repairing the rectification zones; restoring the rails; and installing fasteners. Dividing a standard-length rail into different rectification zones based on defect locations avoids having to remove the entire standard rail, thus reducing the construction area and minimizing the impact on the surrounding environment. It also allows for lateral correction and lifting of the track slabs, resulting in high construction efficiency and suitability for track maintenance windows. Furthermore, dividing the track into rectification zones effectively avoids the continuous removal of rail fasteners, reducing the number of fasteners removed and ensuring track safety. This is especially important in high-temperature and low-temperature environments, where fastener removal further increases the risk of track hazard and directly impacts safety. Therefore, dividing the track into rectification zones reduces the number of fasteners and avoids continuous removal, ensuring track safety.

[0045] In some embodiments, such as Figure 2 As shown, Figure 2 A flowchart illustrating another method for improving ballastless track, which is similar to... Figure 1 The different treatment methods provided are, Figure 1 Step S1 includes:

[0046] Step S11: Obtain the plane and elevation of each track slab in a standard length of rail.

[0047] Specifically, for standard-length rails, for obvious track defects, the plane and elevation of each track slab are obtained, the track is measured using a track trolley, the fastener adjustment amount is investigated, and the correction amount at each fastener is verified and confirmed. A total station and absolute trolley are used to measure the track plane and collect track data to prepare for subsequent correction and fine-tuning.

[0048] Step S12: Based on the comparison of the plane and elevation of each track slab with the standard track data, determine the lateral adjustment amount and lifting amount, and determine the location of track defects.

[0049] Specifically, the collected plane and elevation data of each track slab are compared with the track standard data. The track standard data can be understood as data collected under normal and safe use conditions. If the difference between the collected plane and elevation data of each track slab and the track standard data is within a preset range, it is determined that the track has no obvious defects, and the inspection for hidden defects can be carried out. If the difference between the collected plane and elevation data of each track slab and the track standard data exceeds the preset range, it is determined that the track has obvious defects. Based on the lateral and elevation data of the track, the lateral adjustment and lifting amounts are determined, thereby pinpointing the location of the defects. For easy observation, paint pens can be used to mark the plane and elevation relative to the marks on the adjacent track slabs at the four corner beam joints of the track slabs, serving as a data reference for correction and lifting.

[0050] In some embodiments, such as Figure 2 As shown, Figure 2 A flowchart illustrating another method for improving ballastless track, which is similar to... Figure 1 The different treatment methods provided are, Figure 3 Step S1 further includes:

[0051] Step S13: Obtain the first data for each position of each track slab. The first data is data that can reflect the quality of each track slab.

[0052] Specifically, latent defects are detected in each track slab. There is no fixed order for latent and visible track slab inspections; they can be performed sequentially or simultaneously. Detection devices are used to acquire initial data at various locations on the track slab. This initial data reflects the current quality of the track slab. For example, the detection device could be an ultrasonic testing device, which uses ultrasound to acquire density data at various locations on the track slab, and the density information reflects the track slab's quality. Alternatively, a X-ray device could be used, emitting X-rays to acquire density data at various locations on the track slab, and the density information reflects the track slab's quality. Furthermore, vibration waves can be used to determine the presence of defects such as cracks in the track slab based on their propagation speed.

[0053] Step S14: Based on the first data and the standard data of the track slab, determine the defect location of each track slab and the track defect location.

[0054] Specifically, after obtaining density data at various locations on each track slab, the data is compared with standard density data for track slabs (which can be understood as density data under normal and safe use). The differences in the data determine the corresponding defect locations on the track slabs, thus identifying the track defect locations. Alternatively, after obtaining the wave propagation velocity within the track slab, the data is compared with the standard wave propagation velocity for track slabs. The differences in the data determine the corresponding defect locations on the track slabs, thus identifying the track defect locations.

[0055] In some embodiments, as shown in Figure 3 , Figure 3 Another flowchart of a method for treating a ballastless track is provided, which is different from the method provided in Figure 2 The difference between the method provided in Figure 3 Step S2 in

[0056] Step S21, in the rail extension direction, the two ends of the defect position are surrounded in the vertical direction to form an interval, which is the treatment interval, and the edge of the treatment interval is the cutting position.

[0057] Specifically, according to the detection result, it is judged that in the state that a track slab does not have a dominant defect and has a recessive defect, it should be understood here that the area where the dominant defect position and the recessive defect position do not coincide, that is, the position corresponding to the track slab with recessive defects does not have a dominant defect. For the problem of track recessive defects, and the defect area of the track slab is small relative to the whole track slab, a local repair scheme can be used, which can effectively save resources and reduce construction intensity, and further reduce the number of removed fasteners and reduce the danger of fasteners to the track. Therefore, in the rail extension direction, the two ends of the track slab defect position are surrounded in the vertical direction to form an interval, which is the treatment interval, and the edge of the treatment interval is the cutting position, so that the defective track slab is cut off in the subsequent repair step.

[0058] In some embodiments, as shown in Figure 4 , Figure 4 Another flowchart of a method for treating a ballastless track is provided, which is different from the method provided in Figure 2 The difference between the method provided in Figure 4 Step S2 in

[0059] Step S22, the edge of the track slab is surrounded to form an interval, which is the treatment interval, and the edge of the treatment interval is the cutting position.

[0060] Specifically, according to the detection result, in the state that the track has the explicit defect, it should be understood here that the track has the explicit defect, and there can be two cases that the track slab in the area with the explicit defect has the implicit defect or does not have the implicit defect. As long as there is an explicit defect, the area where the whole track slab is located is regarded as the treatment interval, that is, the interval surrounded by the edges of the track slab is the treatment interval, and the interval is divided and cut according to the length of the single track slab, which can reduce the number of removed fasteners and ensure the safety of the track. For example, the defect position is within the range of a single track slab, and the treatment interval is the range of a single track slab. For example, the defect position appears at the connection between two track slabs, and involves two track slabs, so the treatment interval should be the range of the two track slabs. The edge of the treatment interval is the cutting position, so as to facilitate the separation of the track slabs connected to each other in the subsequent process.

[0061] In some embodiments, as shown in Figure 5 , Figure 5 A flowchart of another flowchart of a treatment method for a ballastless track is provided, which is different from the treatment method provided in Figure 2 The difference between the treatment method provided in Figure 5 Step S4 includes:

[0062] Step S41, the elastic gasket of the base recess is taken out, and the base recess is cut.

[0063] Specifically, according to the detection result, in the state that the track has the explicit defect, it should be understood here that the track has the explicit defect, and there can be two cases that the track slab in the area with the explicit defect has the implicit defect or does not have the implicit defect. As long as there is an explicit defect problem, after the track slab is peeled off, the base recess needs to be cut, and the specific steps have been described in the foregoing, which will not be repeated here.

[0064] Step S42, a plurality of grouting grooves penetrating the base are arranged in the base recess, and a grouting pipe is pre-buried in the grouting groove, so that the grouting pipe communicates with the base recess.

[0065] Specifically, in order to better compact the track plate and the base, and ensure that the track structure is compactly attached together, the cutting device is used to cut the groove of the base on the two sides of the groove in the transverse direction, so that the groove of the base has a grouting groove penetrating through the base. The number and specific size of the grouting groove can be determined according to the actual situation, as long as the grouting groove penetrates through the base. Further, in order to prevent the grouting material from blocking the grouting groove, a grouting pipe is embedded in the grouting groove. The grouting pipe communicates the groove of the base with the outside. The grouting material in the grouting pipe has low adhesion, which can prevent the grouting material from blocking the grouting channel and accelerate the grouting speed. The material of the grouting pipe is not limited, for example, the grouting pipe can be a plastic pipe. The size of the grouting groove should be larger than the size of the grouting pipe, which is convenient for the installation of the grouting pipe.

[0066] Step S43, install the track plate and adjust the track plate.

[0067] Specifically, for the area where the track plate with the explicit defect does not have the implicit defect, the previously stripped track plate is transported back for installation and adjustment. The specific steps have been described in detail in the foregoing, and will not be described here. For the problem of the implicit defect of the track plate at the position with the explicit defect, after the track plate is stripped from the base, the implicit defect position is repaired. The specific repair process is described below. The repaired track plate is transported back for installation and adjustment. The track plate with the implicit defect can also be transported back for installation, and then repaired.

[0068] Step S44, grouting is performed on the groove of the base through the grouting pipe.

[0069] Specifically, after the installation of the track plate is completed, one of the grouting pipe openings is selected, and grouting is performed on the groove of the base through the grouting pipe. If the grouting material flows out from the other grouting pipe opening, it is proved that the groove of the base has been grouted and compacted.

[0070] In some embodiments, as shown in Figure 6 , Figure 6 Another flowchart of a flowchart of a remediation method for ballastless track is provided. The remediation method is different from the remediation method provided by Figure 2 The difference between the remediation method provided by Figure 6 Step S4 in the method includes:

[0071] Step S45, cutting around the implicit defect position to separate the part of the track plate with the implicit defect from the track plate.

[0072] Specifically, according to the detection result, it is judged that in the state that the track has an implicit defect, which should be understood as that the track slab has an implicit defect, there can be two cases that the track has an explicit defect or the track does not have an explicit defect in the position area with the implicit defect. For the case that the track does not have an explicit defect, the area surrounded by cutting around the position of the implicit defect is the remediation interval, and the part of the track slab with the implicit defect is separated from the track slab by cutting around the position of the implicit defect. For the case that the track has an explicit defect, the area surrounded by cutting around the position of the implicit defect is a small part of the explicit remediation interval, and the part of the track slab with the implicit defect is separated from the track slab by cutting around the position of the implicit defect. The track slab with the explicit defect can be cut at the same time when the explicit defect is remedied, or the track slab with the implicit defect can be cut after the installation of the track slab with the implicit defect.

[0073] Step S46, pouring repair is performed on the cut part.

[0074] Specifically, pouring repair is performed on the cut part, so that the track slab eliminates the implicit defect.

[0075] In some embodiments, as shown in Figure 7 , Figure 7 Another flowchart of a remediation method of a ballastless track is provided, which is different from the remediation method provided in Figure 5 The difference between the remediation method provided in Figure 7 and the remediation method provided in the present application is that step S44 in

[0076] Step S441, if the adjustment amount of the track slab is less than or equal to a preset threshold, organic material is injected into the base groove, and if the adjustment amount of the track slab is greater than the preset threshold, inorganic material is injected into the base groove.

[0077] Specifically, in order to facilitate more accurate lifting and save resources as much as possible, different grouting materials can be injected for different lifting amounts of the track. If the lifting amount of the track slab is less than or equal to a preset threshold, organic material is injected into the base groove, and if the lifting amount of the track slab is greater than the preset threshold, inorganic material is injected into the base groove. The specific value of the preset threshold is not limited and can be determined according to the actual situation. For example, the preset threshold is 10 mm, the organic material is organic silicone resin material, and the inorganic material is polymer mortar. If the lifting amount of the track slab is less than or equal to 10 mm, organic silicone resin material is injected into the base groove, and if the lifting amount of the track slab is greater than 10 mm, polymer mortar is injected into the base groove.

[0078] In some embodiments, as shown in Figure 8 , Figure 8 Another flowchart of a remediation method of a ballastless track is provided, which is different from the remediation method provided in Figure 2The provided rectification method is different from Figure 8 The step S3 in the method comprises:

[0079] Step S31, remove the fasteners of the steel rails in the rectification section. Step S32, cut the steel rails according to the marked positions.

[0080] Specifically, remove the fasteners of the steel rails in the rectification section, and cut the steel rails according to the positions marked.

[0081] Step S33, move the steel rails to the two sides of the track slab as the running rails of the transfer device by the transfer device.

[0082] Specifically, move the cut steel rails to the two sides of the track slab by the transfer device, and the type of the transfer device is not limited, for example, the transfer device can be a gantry crane, move the steel rails to the two sides of the track slab by the gantry crane, and adjust the distance between the steel rails according to the size of the gantry crane, use the cut steel rails as the running rails of the gantry crane, which greatly facilitates the transfer of the track slab by the gantry crane. In order to facilitate the subsequent transfer of the track and avoid damage to the steel rails, lay sleepers under the steel rails for support, and the number of sleepers and the distance between adjacent sleepers are not limited, for example, the distance between two adjacent sleepers is 1 meter.

[0083] Step S34, place the transfer device on the running rails, and separate the track slab by moving the transfer device on the running rails.

[0084] Specifically, after laying the sleepers according to the set distance of the steel rails, place the gantry crane on the running rails, so that the gantry crane can move along the extension direction of the steel rails, lift the track slab by the gantry crane, and separate the track slab from the base through the communication boss. The movement of the gantry crane along the extension direction of the steel rails can effectively facilitate the transfer of the track slab and improve the efficiency of the track slab transfer.

[0085] In some embodiments, as shown in Figure 8 , Figure 8 Another flowchart of a rectification method for ballastless track is provided, and the rectification method is different from Figure 2 The provided rectification method is different from Figure 8 The step S34 in the method comprises:

[0086] Step S341, place the transfer device on the running rails. Step S342, lay the support device on the adjacent track slabs of the track slab.

[0087] Specifically, the gantry crane is placed on the running rail, and the supporting device is laid on the track plate adjacent to the track plate to be removed. Any supporting device capable of supporting is acceptable, for example, the supporting device is a sleeper, and the sleepers are evenly laid on the adjacent track plates. The number and arrangement of the sleepers can be determined according to actual requirements. For example, the removed track plate is an integral track plate, and six sleepers can be used to support the track plate, which can be evenly arranged at both ends and the middle position of the track plate to provide uniform support for the removed track plate and avoid tilting of the removed track plate.

[0088] In step S343, the track plate is transferred to the supporting device by moving the carrying device along the extension direction of the running rail.

[0089] Specifically, the gantry crane is moved to the middle position of the track plate to be removed, the special anchor matched with the gantry crane is loaded at the corresponding position of the track plate, the position of the gantry crane is adjusted, and the motor of the gantry crane is started to slowly lift the track plate. The track plate should be kept in a horizontal state during lifting. Then, the gantry crane moves along the extension direction of the steel rail to the upper side of the supporting device while holding the track plate, and the track plate is slowly lowered by the gantry crane so as to be placed on the supporting device. The movement of the gantry crane on the steel rail not only improves the carrying efficiency of the track plate, but also places the track plate on the supporting device of the adjacent track plate, thereby avoiding carrying the track plate to the two sides of the track, further reducing the construction range, and effectively protecting the track plate.

[0090] The above description is only a preferred embodiment of the present application, and is not intended to limit the protection scope of the present application.

Claims

1. A method for rehabilitating a ballastless track, characterized by, The method comprises: In a standard length of steel rail, the track defect position is obtained, the track defect includes track explicit defect and implicit defect, the explicit defect includes track lateral deviation and vertical collapse and / or protrusion, and the implicit defect includes crack in the track plate; Different treatment intervals are determined according to different defect positions, and edges of the treatment intervals are cutting positions; The fasteners of the steel rail are removed in the treatment interval, the steel rail is cut according to the cutting position, the steel rail is moved to the two sides of the track plate as a running rail of the carrying device; The carrying device is placed on the running rail, and the track plate is separated by moving the carrying device on the running rail; In the state that the track has the explicit defect, the treatment interval is repaired by the following steps: The elastic gasket of the base recess is removed, and the base recess is cut; A plurality of grouting grooves penetrating the base are arranged in the base recess, and a grouting pipe is embedded in the grouting groove to make the grouting pipe communicate with the base recess; The track plate is installed and adjusted; The base recess is grouted through the grouting pipe; In the state that the track has the implicit defect, the cut part is repaired by pouring; The steel rail is restored and the fasteners are installed.

2. The remediation method of claim 1, wherein, The defect position includes an explicit defect position; In a standard length of steel rail, the track defect position is obtained, the track defect includes track explicit defect and implicit defect, the explicit defect includes track lateral deviation and vertical collapse and / or protrusion, and the implicit defect includes crack in the track plate; The planar and elevation of each track plate are obtained in a standard length of steel rail; The explicit defect position of the track is determined according to the comparison between the planar and elevation of each track plate and the track standard data.

3. The remediation method of claim 2, wherein, The defect position also includes an implicit defect position; In a standard length of steel rail, the track defect position is obtained, the track defect includes track explicit defect and implicit defect, the explicit defect includes track lateral deviation and vertical collapse and / or protrusion, and the implicit defect includes crack in the track plate; The first data of each position of each track plate is obtained, and the first data is data that can reflect the quality of each track plate; The defect position of each track plate is determined according to the comparison between the first data and the track plate standard data, and the implicit defect position of the track is determined.

4. The remediation method of claim 3, wherein, In the state that a track plate does not have an explicit defect and has an implicit defect, the different treatment intervals are determined according to different defect positions, and edges of the treatment intervals are cutting positions, which comprise: In the extension direction of the steel rail, the interval surrounded by the two ends of the defect position in the vertical direction is the treatment interval, and the edges of the treatment interval are the cutting positions.

5. The remediation method of claim 3, wherein, In the state that the track has the explicit defect, the different treatment intervals are determined according to different defect positions, and edges of the treatment intervals are cutting positions, which further comprise: The interval surrounded by the edges of the track plate is the treatment interval, and the edges of the treatment interval are the cutting positions.

6. The remediation method of claim 1, wherein, The grouting into the base recess comprises: The adjustment amount of the track plate is less than or equal to a preset threshold, and an organic material is injected into the base recess; The adjustment amount of the track plate is greater than the preset threshold, and an inorganic material is injected into the base recess.

7. The remediation method of claim 1, wherein, The separating of the track panel by the movement of the travelling track comprises: laying a support device on an adjacent track panel of the track panel; transferring the track panel onto the support device by moving the track panel along the extension direction of the travelling track by the handling device.

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