Track panel fine adjustment measuring system and track panel fine adjustment method for ballastless track

Abstract

The invention relates to the technical field of bridge construction, in particular to a track panel fine adjustment measuring system and a track panel fine adjustment method for a ballastless track. The track panel fine adjustment measuring system comprises a first bar code ruler and a first prism, one end of the first bar code ruler is inserted into an elevation datum point on a retaining wall, and the first prism is used for positioning the elevation datum point; the second bar code ruler is used for being flatly installed on the tool rail, and the second prism is used for positioning the height difference monitoring cross section of the tool rail; and the observation station assembly is used for measuring position information of the observation station assembly, the first prism and the second prism and reading elevation information of the first bar code ruler and the second bar code ruler at the same time. According to the track panel fine adjustment measuring system, the measuring station is arranged, so that the tool track longitudinal displacement and the height difference monitoring cross section theoretical height difference can be integrally obtained in real time, the track plane position and the track top elevation are corrected, and the influence of temperature difference change on ballastless track panel fine adjustment is weakened; and the fine adjustment precision of the track panel of the ballastless track of the large-span bridge can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and particularly relates to a track panel fine adjustment measurement system and a track panel fine adjustment method for a ballastless track. Background Art

[0002] The ballastless track generally adopts double-block track panel construction, that is, each pair of sleeper blocks is first installed on the tool rails of the track panel, and then the tool rails together with each pair of sleeper blocks are installed on the base plate outside the formwork of the ballast bed slab by relying on the track panel support structure. Finally, based on the CPIII (High-Speed Railway Track Control Network) points, an intelligent total station is used to cooperate to adjust the plane position and elevation of the tool rail top surface at each pair of sleeper blocks to be in place, and the ballast bed slab concrete is poured to integrate each pair of sleeper blocks and the ballast bed slab.

[0003] In the related technology, the measurement control benchmark for the track panel fine adjustment during the construction of the ballastless track and the track maintenance during the operation of the high-speed railway is the CPIII symmetric control network. Generally, the total station is first used to measure the plane real-time coordinates of the CPIII network, and the station coordinates are obtained according to the plane real-time coordinates of the CPIII network to adjust the plane position of the track panel. Then, according to the elevation of the elevation reference points of each cross-section for monitoring the height difference of the track panel arranged on the retaining wall every 4 - 6 meters, the level measurement of each sleeper block within the control range of each cross-section for monitoring the height difference of the track panel is carried out by a level through multiple consecutive setups, and the elevation of the tool rail top at each sleeper block within the control range of each cross-section for monitoring the height difference of the track panel is finely adjusted to be in place.

[0004] However, during the construction of various working conditions of the ballastless track, it is required that the CPIII coordinate values remain unique to ensure the smoothness accuracy of the ballastless track. Therefore, it is necessary to first measure the coordinates of the CPIII network points, then adjust the plane position of the track panel, and finally carry out precise level height difference measurement. However, the plane real-time coordinates of each point of the CPIII network have a large longitudinal displacement change affected by the long-term temperature difference change. During the process of completing the previous steps, the position of the track panel is likely to change, which in turn affects the accuracy of the subsequent point coordinate measurement and height difference measurement. Obviously, the related technology process is complex and has the defects of low accuracy and low efficiency, and it is difficult to meet the requirements of the ballastless track panel fine adjustment of long-span bridges. Summary of the Invention

[0005] Aiming at the problems in the related technology that the construction process of the track panel fine adjustment of the ballastless track is complex, the measurement period is long, and the measurement accuracy is greatly affected by the temperature difference change.

[0006] In a first aspect, an embodiment of the present application provides a track panel fine adjustment measurement system for a ballastless track, which includes:

[0007] A retaining wall bar code ruler assembly, which includes a first bar code ruler and a first prism. One end of the first bar code ruler is inserted into the elevation reference point on the retaining wall, the first prism is embedded on the first bar code ruler, and the first prism is used to locate the elevation reference point;

[0008] The track inspection bar code ruler assembly includes: a second bar code ruler and a second prism. The second bar code ruler is used to be horizontally installed on the tool rail, and the second prism is embedded on the second bar code ruler, and the second prism is used to locate the elevation monitoring cross-section of the tool rail;

[0009] The survey station assembly is used to be installed on the tool rail. The survey station assembly is used to measure the position information between it and the first prism and the second prism, and simultaneously read the elevation information of the first bar code ruler and the second bar code ruler.

[0010] Combined with the first aspect, in an embodiment, the survey station assembly includes:

[0011] The survey station mounting frame is installed in the area of the poured track slab on the tool rail;

[0012] The total station is movably installed on the survey station mounting frame, and the total station can rotate relative to the survey station mounting frame to align with the first prism or the second prism;

[0013] The level is installed on the total station, and the total station can rotate synchronously with the total station. And when the total station aligns with the first prism or the second prism respectively, the level sights at the first bar code ruler or the second bar code ruler respectively.

[0014] Combined with the first aspect, in an embodiment, the center of the first prism is aligned with the elevation reference point in the axial direction of the first bar code ruler, and the center of the second prism is on the axis of the second bar code ruler.

[0015] Combined with the first aspect, in an embodiment, an automatic leveling button is provided on the level, a tray for carrying the level is provided above the total station, and a remote trigger mechanism is provided on the tray. The remote trigger mechanism is used to trigger the automatic leveling button so that the level performs automatic leveling.

[0016] Combined with the first aspect, in an embodiment, the track inspection bar code ruler assembly includes:

[0017] The track inspection trolley is used to be movably installed on the tool rail and can move between different sleeper blocks on the tool rail. The second bar code ruler is installed on the top surface of the track inspection trolley;

[0018] The track parameter measuring mechanism is arranged on the track inspection trolley. The track parameter measuring mechanism is used to obtain the three-dimensional deviation between the top surface of the tool rail and the center of the top surface of the track inspection trolley.

[0019] Combined with the first aspect, in an embodiment, the retaining wall bar code ruler assembly further includes:

[0020] The bar code ruler support frame is installed on the retaining wall. The first bar code ruler is installed on the bar code ruler support frame, and a middle hole for the first bar code ruler to pass through is provided at the bottom of the bar code ruler support frame;

[0021] The leveling member is installed on the bar code ruler support frame, and the leveling member is used to level the first bar code ruler.

[0022] In a second aspect, an embodiment of the present application provides a method for precisely adjusting the track panel of a track panel precise adjustment measurement system using the above ballastless track, which includes:

[0023] Install the measuring station assembly on the tool rail and obtain the real-time measuring station coordinates of the measuring station assembly;

[0024] Use the measuring station assembly to measure the position information of the second prism, and adjust the planar position of the sleeper block at the corresponding position of the tool rail according to the position information of the second prism and the real-time measuring station coordinates;

[0025] Use the measuring station assembly to read the elevation information of the first bar code ruler and the second bar code ruler, and adjust the elevation of the tool rail according to the elevation information of the first bar code ruler and the second bar code ruler.

[0026] Combined with the second aspect, in an implementation manner, the obtaining of the real-time measuring station coordinates of the measuring station assembly includes:

[0027] Obtain the initial measuring station coordinates of the center of the measuring station assembly according to the positional relationship between the measuring station assembly and the control points on the retaining walls on both sides of the tool rail;

[0028] Use the measuring station assembly to measure the actual horizontal distance parameters from its center to the axis stability control points set at both ends of the bridge respectively;

[0029] Perform horizontal distance adjustment according to the preset horizontal distance and the actual horizontal distance parameters between the two axis stability control points to obtain the longitudinal coordinate correction value of the measuring station;

[0030] Correct the initial measuring station coordinates according to the longitudinal coordinate correction value to obtain the real-time measuring station coordinates.

[0031] Combined with the second aspect, in an implementation manner, the adjusting of the planar position of the sleeper block at the corresponding position of the tool rail according to the position information of the second prism and the real-time measuring station coordinates of the measuring station assembly includes:

[0032] Obtain the actual planar coordinates of the second prism according to the position information of the second prism and the real-time measuring station coordinates of the measuring station assembly;

[0033] Use an orbital parameter measuring mechanism to obtain the three-dimensional deviation parameters between the top surface of the tool rail and the center of the top surface of the track inspection trolley;

[0034] Obtain the planar adjustment deviation of the top of the tool rail based on the actual planar coordinates of the second prism and the three-dimensional deviation parameters;

[0035] Adjust the planar position of the sleeper blocks in the corresponding area of the tool rail according to the planar adjustment deviation of the top of the tool rail.

[0036] Combined with the second aspect, in an implementation manner, the using the survey station assembly to read the elevation information of the first barcode ruler and the second barcode ruler includes:

[0037] Drive the total station to rotate and drive the level to rotate horizontally to aim at the first barcode ruler, and use the level to read the elevation information of the first barcode ruler;

[0038] Drive the total station to rotate again and drive the level to rotate horizontally to aim at the second barcode ruler, and use the level to read the elevation information of the second barcode ruler.

[0039] The beneficial effects brought by the technical solution provided by the embodiments of the present application at least include:

[0040] In the track panel fine adjustment measurement system of the ballastless track of the present application, by setting up a survey station, the longitudinal displacement of the tool rail of the track panel, the theoretical elevation of the monitoring cross-section of the height difference, and the planar position and elevation of the rail top can be obtained integrally and in real time, weakening the influence of temperature difference changes on the fine adjustment of the ballastless track of long-span bridges, which is beneficial to improving the fine adjustment accuracy of the ballastless track of long-span bridges. Description of the Drawings

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0042] Figure 1 It is a schematic diagram of the track panel fine adjustment measurement system in the embodiment of the present invention;

[0043] Figure 2 It is a partial schematic diagram of the track panel fine adjustment measurement system at the survey station assembly in the embodiment of the present invention;

[0044] Figure 3 It is a partial schematic diagram of the track panel fine adjustment measurement system at the retaining wall barcode ruler assembly in the embodiment of the present invention;

[0045] Figure 4This is a partial schematic diagram of the track gauge fine adjustment measurement system for the in-orbit inspection bar code ruler assembly in the embodiments of the present invention;

[0046] Figure 5 This is a flowchart of the track gauge fine adjustment method in the embodiments of the present invention.

[0047] In the figure: 1. Retaining wall bar code ruler assembly; 11. First bar code ruler; 12. First prism; 13. Bar code ruler support frame; 14. Leveling member; 15. Fixing screw; 16. Level bubble; 2. Retaining wall; 21. Elevation reference point; 22. Control network point; 3. Track inspection bar code ruler assembly; 31. Second bar code ruler; 32. Second prism; 33. Track inspection trolley; 331. Base; 332. Support column; 4. Tool rail; 41. Sleeper block; 42. Ballast slab; 43. Track gauge; 5. Measuring station assembly; 51. Measuring station mounting frame; 511. Chassis; 512. Centering column; 52. Total station; 521. Total station telescope; 53. Level; 531. Automatic leveling button; 532. Level telescope; 54. Tray; 541. Magnetic switch; 542. Protrusion; 55. Leveler; 7. Axis stability control point; 8. Track axis. Detailed implementation manners

[0048] In order to enable those skilled in the art of the present technology to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0049] Aiming at the problems in the related technology that the construction process of the track gauge fine adjustment process of the ballastless track is complex and the measurement period is long, resulting in a large influence on the measurement accuracy by the temperature difference change.

[0050] It should be noted that the traditional fine adjustment method "i.e., the two processes of the total station plane measurement of 'immediate measurement and immediate use' and the precise level height difference measurement are measured separately". First, the plane real-time coordinates of the CPIII network are measured and then the plane position of the track gauge is adjusted. However, the measurement of the plane real-time coordinates of the CPIII network needs to start from the fixed control points at the bridge end and measure each CPIII network point on the main beam in turn. The workload is large and the measurement takes a long time. The longitudinal displacement of the plane real-time coordinates of each point in the CPIII network changes greatly due to the long-term temperature difference change, resulting in a large longitudinal coordinate measurement error of each point in the CPIII network;

[0051] Furthermore, in the related art, for precise level difference measurement, the total station is first used to lay out the positions of each elevation monitoring cross-section on the tool rail of the track panel, and then the artificial multiple-setup precise level is used alone in cooperation with the artificial multiple-setup bar code ruler to finely adjust the elevation of the rail top at each sleeper block within the control range of each elevation monitoring cross-section of the track panel. The process is complicated and the efficiency is low. Obviously, the related technology has complex processes and has defects of low precision and low efficiency, and it is difficult to meet the requirements for precise adjustment of the track panel of the ballastless track of long-span bridges.

[0052] It should be noted that the above-mentioned multiple elevation monitoring cross-sections are multiple monitoring surfaces set on the tool rail 4 for measuring and adjusting each area. The elevation reference point 21 of the elevation monitoring cross-section is the reference point set on the retaining walls 2 on both sides of the tool rail 4 for calculating the elevation difference in cooperation with the elevation monitoring cross-section. Therefore, different elevation monitoring cross-sections correspond to different elevation reference points 21.

[0053] In the first aspect, as Figure 1 shown, an embodiment of a precise adjustment measurement system for a ballastless track panel provided by the present application includes: a retaining wall bar code ruler assembly 1, a track inspection bar code ruler assembly 3, and a measuring station assembly 5; wherein,

[0054] The retaining wall bar code ruler assembly 1 includes a first bar code ruler 11 and a first prism 12. One end of the first bar code ruler 11 is inserted into the elevation reference point 21 on the retaining wall 2, and the first prism 12 is embedded in the first bar code ruler 11, and the first prism 12 is used to locate the elevation reference point 21; the track inspection bar code ruler assembly 3 includes: a second bar code ruler 31 and a second prism 32. The second bar code ruler 31 is used to be horizontally installed on the tool rail 4, and the second prism 32 is embedded in the second bar code ruler 31, and the second prism 32 is used to locate the elevation monitoring cross-section of the tool rail 4; the measuring station assembly 5 is used to be installed on the tool rail 4, and the measuring station assembly 5 is used to measure the position information between it and the first prism 12 and the second prism 32, and simultaneously read the elevation information of the first bar code ruler 11 and the second bar code ruler 31.

[0055] It is worth noting that in the above-mentioned embodiment, bar code rulers and prisms installed together are arranged at the elevation reference point at the retaining wall 2 and the elevation monitoring cross-section on the track panel 43 of the tool rail 4. The bar code ruler is used to display the elevation information of two positions, and the prism is used to locate the plane position. The fixed retaining wall bar code ruler assembly 1 on the retaining wall 2 can cooperate with the measuring station assembly 5 to timely correct the longitudinal displacement of the elevation monitoring cross-section of the track panel, ensure that the actual position of the elevation monitoring cross-section of the track panel is consistent with the theoretical position based on the monitoring rules, weaken the influence of the monitoring system error, and at the same time cooperate with the navigation and mobile track inspection bar code ruler assembly to quickly complete the fine adjustment and positioning of the elevation of the rail top at each pair of sleeper blocks 41 on the track panel 43.

[0056] In some specific embodiments, such as Figure 2 shown, the survey station assembly 5 includes: a survey station mounting rack 51, a total station 52, and a level 53; where

[0057] The survey station mounting rack 51 is installed in the area of the cast-in-place track slab on the tool rail 4. The total station 52 is movably installed on the survey station mounting rack 51, and the total station 52 can rotate relative to the survey station mounting rack 51 to align with the first prism 12 or the second prism 32; the level 53 is installed on the total station 52, and the total station 52 can rotate synchronously with the total station 52, and when the total station 52 is aligned with the first prism 12 or the second prism 32 respectively, the level 53 sights the first bar code ruler 11 or the second bar code ruler 31 respectively.

[0058] It should be noted that in the above-mentioned embodiments, a total station is used to carry a level to integrally and real-time obtain the longitudinal displacement of the tool rail of the track panel and the theoretical height difference of the monitoring cross-section of the height difference, and correct the track plane position and the elevation of the rail top, weakening the influence of temperature difference changes on the precise adjustment of the ballastless track panel of long-span bridges, which is beneficial to improving the precise adjustment accuracy of the ballastless track panel of long-span bridges.

[0059] Furthermore, in the present application, the survey station assembly 5 uses the total station 52 to carry the level 53, overcoming the problem that the level 53 cannot automatically rotate and automatically sight the first bar code ruler 11 or the second bar code ruler 31. By using the rotatable characteristic of the total station 52, the level 53 and the total station 52 are integrally arranged, so that when the total station 52 rotates to align with the first prism 12 or the second prism 32, the level 53 thereon will also rotate accordingly to sight the first bar code ruler 11 or the second bar code ruler 31.

[0060] Specifically, when the total station 52 aligns with the first prism 12, the level 53 sights the first bar code ruler 11 and can read its value. When the total station 52 aligns with the second prism 32, the level 53 sights the second bar code ruler 31 and can read its value.

[0061] In some preferred embodiments, such as Figure 3 and Figure 4 shown, the center of the first prism 12 is aligned with the elevation reference point 21 in the axial direction of the first bar code ruler 11, and the center of the second prism 32 is on the axis of the second bar code ruler 31.

[0062] It should be noted that the station assembly 5 can measure the elevation difference between the elevation reference point 21 and the tool rail 4 through the first prism 12 and the second prism 32 respectively to monitor the position information of the cross-section, and simultaneously read the first bar code ruler 11 and the second bar code ruler 31 to obtain the elevation information of the cross-section of the elevation difference between the elevation reference point 21 and the tool rail 4

[0063] Further, the level 53 can be a level 53 with an automatic leveling function, and an automatic leveling button 531 is installed on the level 53.

[0064] In some alternative embodiments, such as Figure 2 As shown, the station mounting frame 51 includes: a chassis 511 and a centering column 512; wherein,

[0065] The chassis 511 is clamped on the two tool rails 4 of the track panel 43 of the already poured roadbed slab, the centering column 512 is fixed at the center of the top surface of the track chassis 511, and a leveler 55 is installed at the center of the top surface of the centering column 512. The total station 52 is installed on the leveler 55, a tray 54 for carrying the level 53 is provided above the total station 52, and a remote trigger mechanism is provided on the tray 54 for triggering the automatic leveling button 531 to enable the level 53 to perform automatic leveling.

[0066] Specifically, in order to facilitate remote control of leveling the level 53, a circular chute is provided at the edge of the top surface of the tray 54, a side ear that can move along the chute is provided on the circular chute, and a remote trigger mechanism is provided on the side ear. The remote trigger mechanism includes a magnetic switch 541 and a bump 542 provided on the side ear.

[0067] It can be understood that the magnetic switch 541 and the bump 542 can rotate with the side ear of the tray 54 with the side ear to face the automatic leveling button 531 of the automatic leveling level 53. After the magnetic switch 541 with the magnetic spring piece is closed, the bump 542 pops up with the magnetic spring piece of the magnetic switch 541 to touch the automatic leveling button 531 of the level 53.

[0068] Further, a total station telescope 521 is provided on the total station 52, and a level telescope 532 is provided on the level 53.

[0069] It can be understood that when the station assembly 5 is performing measurement, the axes of the total station telescope 521 and the level telescope 532 are in the same vertical plane.

[0070] In some specific embodiments, such as Figure 3 As shown, the retaining wall bar code ruler assembly 1 further includes: a bar code ruler support frame 13 and a leveling member 14; wherein,

[0071] The barcode ruler support frame 13 is installed on the retaining wall 2. The first barcode ruler 11 is installed on the barcode ruler support frame 13, and a central hole through which the first barcode ruler 11 passes is provided at the bottom of the barcode ruler support frame 13; the leveling member 14 is installed on the barcode ruler support frame 13, and the leveling member 14 is used to level the first barcode ruler 11.

[0072] In some preferred embodiments, the barcode ruler support frame 13 is in a shape of a several-character frame. The two ear plates at its bottom end are fixed on the retaining wall 2 at the elevation reference point 21 of the elevation difference monitoring cross-section of the track panel 43 by fixing screws. The center of the top surface of the barcode ruler support frame 13 has a rectangular hole for the first barcode ruler 11 to penetrate into the elevation reference point 21 of the elevation difference monitoring cross-section of the track panel 43. The leveling member 14 is provided around the rectangular hole. The leveling member 14 includes three leveling screws, which cooperate with the level bubble 16 provided on the first barcode ruler 11 to level the first barcode ruler 11. The center of the bottom end of the first barcode ruler 11 has a hemispherical groove, which matches the elevation reference point 21 of the elevation difference monitoring cross-section. The vertex of the hemispherical groove is flush with the zero scale of the first barcode ruler 11. The first prism 12 is embedded in the lower part of the first barcode ruler 11, and its center and the vertex of the hemispherical groove, that is, the elevation reference point 21, are on the axis of the first barcode ruler 11, which is used for the level 53 of the survey station assembly 5 to rotate with the total station 52 to align with the first barcode ruler 11 for leveling measurement, and is used for the total station 52 to measure the distance, horizontal angle and vertical angle from its center to the first prism 12.

[0073] In some specific embodiments, as Figure 4 shown, the track inspection barcode ruler assembly 3 includes: a track inspection trolley 33 and a track parameter measurement mechanism; wherein,

[0074] The track inspection trolley 33 is used to be movably installed on the tool rail 4 and can move between different sleeper blocks 41 on the tool rail 4. The second barcode ruler 31 is installed on the top surface of the track inspection trolley 33; the track parameter measurement mechanism is provided on the track inspection trolley 33, and the track parameter measurement mechanism is used to obtain the three-dimensional deviation between the top surface of the tool rail 4 and the center of the top surface of the track inspection trolley 33.

[0075] It should be noted that the track inspection trolley 33 is used to be placed on the tool rail 4 of the track panel 43 to be poured. It is equipped with an electric control moving mechanism and a track parameter measurement mechanism. The track parameter measurement mechanism can obtain the three-dimensional deviation between the top surface of the tool rail 4 at the sleeper block 41 and the center of the top surface of the base 331 of the track inspection trolley 33 through the measurement data of the gauge sensor and the tilt sensors of the two tracks inside it and the known geometric relationship data between the components of the track inspection trolley 33 and the second prism 32.

[0076] Further, a support column is provided on the track inspection trolley 33, and a second scale 31 is fixedly installed on the support column, so that the second scale 31 is horizontally installed at the center of the base 331 of the track inspection trolley 33.

[0077] Preferably, the second prism 32 is embedded in the lower part of the second scale 31, and its center is on the axis of the second scale 31, and is used for the level 53 of the measuring station assembly 5 to rotate with the total station 52 to align with the second scale 31 for leveling measurement.

[0078] Further, the track-laying fine adjustment measurement system of the present application further includes: a central controller; wherein,

[0079] The central controller is signal-connected to the retaining wall bar code scale assembly 1, the track inspection bar code scale assembly 3 and the measuring station assembly 5. The central controller is used to receive and process data and control the leveler 55 and the magnetic switch 541 to perform functions. At the same time, it can also control the level 53 and the total station 52 to perform measurement operations, and control the track inspection trolley 33 of the track inspection bar code scale assembly 3 to run along the tool rail 4.

[0080] It can be understood that the central controller calculates the longitudinal horizontal distance from the center of the total station 52 to the second prism 32 along the track axis 8, and is also used to track and measure the plane coordinates of the second prism 32 and navigate the track inspection trolley 33 to each sleeper block 41 of the track-laying 43 respectively. The level 53 measures the deviation between the elevation of the two tool rails 4 at each sleeper block 41 within the cross-section control range and the elevation of the two tool rails 4 at the corresponding cross-section of the high difference monitoring cross-section where the tool rails 4 have been in place.

[0081] In some preferred embodiments, the track-laying fine adjustment measurement system of the present application further includes: a measuring station coordinate correction module and a rail top elevation correction value acquisition module; wherein,

[0082] The measuring station coordinate correction module, according to the known longitudinal horizontal distance S of the track axis control points 7 (i.e., DQ1, DQ2) set at the stable positions at both ends of the bridge DQ2-DQ1 and the actual longitudinal horizontal distances S from the center of the total station 52 to the track axis control points DQ1 and DQ2 set at the stable positions at both ends of the bridge DQ1 and S DQ2 , performs longitudinal horizontal distance adjustment to obtain the measuring station coordinate correction value;

[0083] The rail top elevation correction value acquisition module can obtain the elevation adjustment deviation of the two tool rails 4, that is, the elevation correction value, according to the designed theoretical height difference between each elevation reference point 21 of the track-laying 43 and the top of the tool rail 4 of the track-laying 43, the height difference between the elevation reference point 21 measured by the level 53 of the measuring station assembly 5 and the top surface of the base 331 of the track inspection trolley 33, and the elevation deviation between the two tool rails 4 and the base 331 of the track inspection trolley 33 obtained by the track parameter measuring mechanism.

[0084] Second, as Figure 5 As shown, the present application provides a track fine-tuning method using the track fine-tuning measurement system of the ballastless track, which comprises:

[0085] Step S1: Install the measuring station component 5 on the tool rail 4, and obtain the real-time measuring station coordinates of the measuring station component 5.

[0086] It is worth noting that the measuring station assembly 5 is used to install the two tool rails 4 of the rail row 43 of the poured track bed plate 42. Further, based on the independent control network of the track axis 8, the measuring station correction coordinates can be obtained according to the axis stability control points 7 (DQ1, DQ2) set at the stable positions at both ends of the bridge. Then, the real-time measuring station coordinates are corrected according to the measuring station correction coordinates.

[0087] The above step S1 specifically includes:

[0088] Step S1a, obtaining the initial station coordinates of the center of the station assembly 5 according to the positional relationship between the station assembly 5 and the control points 22 on the retaining walls 2 on both sides of the tool rail 4.

[0089] Specifically, Figure 1 As shown, the coordinates of each CPⅢ control point 22 arranged on the retaining wall 2 in the ballastless track control network are converted into coordinates in the independent control network based on the track axis 8, and the measuring station assembly 5 is placed on the tool rail 4 of the track row 43 of the poured trackbed plate 42. The central controller starts and levels the total station 52, and measures the positional relationship between the center of the total station 52 and the center of the prism at multiple pairs (generally 4 pairs) of CPⅢ control points 22 on the retaining wall 2. The positional relationship includes: slant distance, horizontal angle, vertical angle, and then the initial measuring station coordinates of the total station 52 are obtained based on the acquired positional relationship and the coordinates of the control point 22.

[0090] It should be noted that the independent control network based on the track axis 8 takes the axis stability control point 7 (one of DQ1 and DQ2) of the track axis 8 at the stable position of one end of the bridge as the origin, the track axis 8 at the stable positions of both ends of the bridge as the X-axis, the track mileage line as the Y-axis, and the elevation direction as the Z-axis. The purpose is to facilitate and intuitively obtain the longitudinal coordinate correction value of the survey station and obtain the survey station corrected coordinates.

[0091] Step S1b: Use the measuring station assembly 5 to measure the actual horizontal distance parameter from the center to the axis stability control points 7 set at both ends of the bridge, which is S DQ1 and S DQ2 .

[0092] Step S1c: perform horizontal distance adjustment according to the preset horizontal distance between the two axis stabilization control points 7 and the actual horizontal distance parameters to obtain the longitudinal coordinate correction value of the measuring station.

[0093] Specifically, using the station coordinate correction module, based on the known longitudinal horizontal distance S between two axis stability control points 7 set at stable positions at both ends of the bridge DQ2-DQ1 , the actual longitudinal horizontal distances S from the center of the total station 52 to the two axis stability control points 7 measured respectively DQ1 + S DQ2 , and performing horizontal distance adjustment, obtaining the longitudinal coordinate correction value of the total station 52 according to the following formula: [S DQ2-DQ1 - (S DQ1 + S DQ2 )] × S DQ1 / S DQ2-DQ1 ;

[0094] Step S1d: Correct the initial station coordinates according to the longitudinal coordinate correction value to obtain real-time station coordinates.

[0095] Specifically, according to the longitudinal coordinate correction value of the total station 52, use the central controller to correct the longitudinal coordinate of the total station 52 to obtain real-time station coordinates.

[0096] It can be understood that, based on the axis stability control points 7 set at stable positions at both ends of the bridge, real-time correction is performed on the longitudinal coordinates of the stations obtained by the total station 52 based on CPIII points. The benefit brought by this is to solve the technical problem in the traditional technology that the plane coordinates of the control network points 22 are affected by the long occupation time of the real-time measurement of the main beam CPIII network, large temperature difference changes, and large longitudinal displacement of the main beam, resulting in large measurement errors in the longitudinal coordinates of the control network points 22.

[0097] Step S2: Use the station component 5 to measure the position information of the second prism 32, and adjust the plane position of the sleeper block 41 at the corresponding position of the tool rail 4 according to the position information of the second prism 32 and the real-time station coordinates.

[0098] The above step S2 specifically includes:

[0099] Step S2a: Obtain the actual plane coordinates of the second prism 32 according to the position information of the second prism 32 and the real-time station coordinates of the station component 5.

[0100] Specifically, in the area where the ballastless track slab is to be poured, place the track inspection bar code ruler assembly 3 at the center of the first pair of sleeper blocks 41 on the tool rail 4, and the total station 52 measures the actual plane coordinates of the second prism 32.

[0101] It can be understood that the track inspection bar code ruler assembly 3 is placed in the area where the ballastless track slab is to be poured, and the position adjustment of all the sleeper blocks 41 in this area needs to be carried out one by one.

[0102] Step S2b: Use the track parameter measurement mechanism to obtain the three-dimensional deviation parameters between the top surface of the tool rail 4 and the center of the top surface of the track inspection trolley 33.

[0103] It should be noted that although the track inspection trolley 33 is installed on the sleeper block 41 of the tool rail 4. However, taking the center of the base 331 of the track inspection trolley 33 as the measurement object still cannot reflect the true parameters of the top surface of the tool rail 4. Therefore, in order to improve the measurement accuracy, it is necessary to obtain the three-dimensional deviation parameters between the top surface of the tool rail 4 and the center of the top surface of the track inspection trolley 33 to correct the subsequent measurement results.

[0104] Step S2c: Obtain the plane adjustment deviation of the top of the tool rail 4 based on the actual plane coordinates of the second prism 32 and the three-dimensional deviation parameters.

[0105] Specifically, the track parameter measurement mechanism of the track inspection trolley 33 can obtain the plane deviation between the top of the tool rail 4 at the sleeper block 41 and the center of the base 331 of the track inspection trolley 33 through the gauge measurement sensor and the inclination sensors of the two tracks inside it and the known geometric relationship between the components of the track inspection trolley 33 and the second prism 32.

[0106] Step S2d: Adjust the plane position of the sleeper block 41 in the corresponding area of the tool rail 4 according to the plane adjustment deviation of the top of the tool rail 4.

[0107] It can be understood that after obtaining the plane adjustment deviation, intelligent operators can adjust the corresponding sleeper block 41 to make it in place in the plane. The total station 52 sequentially measures the longitudinal horizontal distance from the center of the total station 52 to the center of the second prism 32. The central controller calculates the deviation between the longitudinal horizontal distance from the center of the total station 52 to the center of the second prism 32 and the designed theoretical distance from the center of the total station 52 to the center of each pair of sleeper blocks 41.

[0108] Step S2e: Navigate the track inspection trolley 33 to move to the center of each pair of sleeper blocks 41 in sequence, and repeat the above steps S2a to S2d to obtain the plane adjustment deviation of the corresponding sleeper block 41, and direct the operators to perform plane position adjustment for each area.

[0109] Specifically, the track inspection trolley 33 of the navigation drive track inspection bar code ruler assembly 3 runs to the center of each pair of sleeper blocks 41 in sequence. The total station 52 sequentially measures the actual plane coordinates of the second prism 32 on the track gauge 43 of the ballastless track slab to be poured at the center of each pair of sleeper blocks 41, and cooperates with the track parameter measurement mechanism to obtain the plane adjustment deviation of the top of the tool rail 4 at each pair of sleeper blocks 41, and direct the construction personnel to use the tool rail screw and the support rod to adjust the plane of the tool rail 4 at each pair of sleeper blocks 41 to be in place, and complete the plane in-place.

[0110] Step S3: Use the survey station assembly 5 to read the elevation information of the first barcode ruler 11 and the second barcode ruler 31, and adjust the elevation of the tool rail 4 according to the elevation information of the first barcode ruler 11 and the second barcode ruler 31.

[0111] Specifically, the process of the above survey station assembly 5 reading the elevation information includes:

[0112] Drive the total station 52 to rotate to drive the level 53 to rotate horizontally to aim at the first barcode ruler 11, and use the level 53 to read the elevation information of the first barcode ruler 11; drive the total station 52 to rotate again to drive the level 53 to rotate horizontally to aim at the second barcode ruler 31, and use the level 53 to read the elevation information of the second barcode ruler 31.

[0113] In some optional real-time modes, the above step S3 specifically includes

[0114] Step S3a: Install the track inspection barcode ruler assembly 3 on each elevation reference point 21 on the retaining wall 2, and level each first barcode ruler 11 through each leveling screw.

[0115] Step S3b: The total station 52 drives the level 53 to rotate horizontally together. The total station 52 aims at the first prism 12 on the first barcode ruler 11, so that the level 53 aims at the first barcode ruler 11. The central controller turns off the power of the electromagnet so that the convex point 542 of the magnetic switch 541 touches the automatic leveling button 531 of the level 53 to level the level 53.

[0116] Step S3c: The total station 52 measures the inclined distance, horizontal angle, and vertical angle from its center to the first prism 12 on the first barcode ruler 11 at each elevation reference point 21 of each height difference monitoring cross-section, and respectively obtains the longitudinal horizontal distance from the center of the total station 52 to the first prism 12 at each position along the track axis 8 direction.

[0117] Step S3d: The level 53 measures the horizontal sight reading of each first barcode ruler 11 at the elevation reference point 21 corresponding to each height difference monitoring cross-section.

[0118] Step S3e: The total station 52 drives the level 53 to rotate horizontally together to the second prism 32 at each corresponding height difference monitoring cross-section. The total station 52 measures the longitudinal horizontal distances from its center to the centers of the second prisms 32 at each position respectively.

[0119] Specifically, based on the deviation between the longitudinal horizontal distance from the center of the total station 52 to the center of each second prism 32 at each corresponding height difference monitoring cross-section and the longitudinal horizontal distance from the center of the total station 52 to each first prism 12 along each longitudinal horizontal distance, the inspection trolley 33 of the track inspection bar code ruler assembly 3 is respectively and sequentially navigated to each corresponding height difference monitoring cross-section of the track panel 43.

[0120] Step S3f: The level 53 sequentially measures the horizontal line-of-sight readings of the second bar code ruler 31 at each corresponding height difference monitoring cross-section.

[0121] Step S3g: Calculate the elevation adjustment deviation, i.e., each elevation correction value, of the top surfaces of the two tool rails 4 at each height difference monitoring cross-section.

[0122] Specifically, first obtain the designed theoretical height difference between each elevation reference point 21 and the top surfaces of the two tool rails 4 at each corresponding height difference monitoring cross-section, and the height difference between each elevation reference point 21 and the center of the top surface of the base 331 at each corresponding height difference monitoring cross-section. Then obtain the elevation deviation of the top surfaces of the two tool rails 4 through the track parameter measuring mechanism. Calculate the elevation correction value based on the above three values.

[0123] Step S3h: Based on each elevation correction value at each height difference monitoring cross-section, sequentially adjust the elevation of the top surfaces of the two tool rails 4 at each height difference monitoring cross-section of the track panel to be in place.

[0124] S39: Based on the already-in-place elevations of the top surfaces of the two tool rails 4 at each height difference monitoring cross-section, the total station 52 navigates the inspection trolley 33 to each pair of sleeper blocks 41 of the track panel 43 respectively. The level 53 measures the deviation between the elevations of the top surfaces of the two tool rails 4 at each sleeper block 41 within the control range of each height difference monitoring cross-section and the already-in-place elevations of the top surfaces of the two tool rails 4 at the corresponding height difference monitoring cross-section, and commands the operators to use the support screws of the track panel 43 to adjust the elevation of the top surfaces of the tool rails 4 at each sleeper block of the track panel 43 to be in place, thus completing the elevation in-place of the track panel 43.

[0125] In summary, the method for precisely adjusting the track panel of the ballastless track and the precise adjustment measurement system of the present invention utilize an intelligent total station equipped with a level to integrally and real-time obtain the longitudinal displacement of the tool track of the track panel and the theoretical elevation of the cross-section for monitoring the height difference, and correct the track plane position and the elevation of the rail top, weakening the influence of temperature difference changes on the precise adjustment of the ballastless track panel of long-span bridges, which is beneficial to improving the precise adjustment accuracy of the ballastless track panel of long-span bridges. Further, based on the independent control network of the track axis, according to the track axis control points set at the stable positions at both ends of the bridge, the present application real-time corrects the longitudinal coordinates of the measuring stations for obtaining CPIII points, solving the technical problem in the traditional "immediate measurement and use for track panel plane precise adjustment" that the longitudinal coordinates of CPIII are greatly affected by the long occupation time of measurement, large temperature difference changes resulting in large longitudinal displacements, and thus large measurement errors in the longitudinal coordinates of CPIII. Finally, the present application adopts a fixed retaining wall bar code ruler assembly, which cooperates with the measurement assembly to real-time correct the longitudinal displacement of the cross-section for monitoring the height difference of the track panel, ensuring that the actual position of the cross-section for monitoring the height difference of the track panel is consistent with the theoretical position based on the monitoring rules, weakening the influence of monitoring system errors. At the same time, in cooperation with the navigation mobile track inspection bar code ruler assembly, the precise adjustment and positioning of the elevation of the rail top at each pair of sleeper blocks of the track panel can be quickly completed.

[0126] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0127] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0128] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A track panel fine adjustment measurement system for ballastless track, characterized in that, Including: A retaining wall barcode ruler assembly (1), which includes a first barcode ruler (11) and a first prism (12). One end of the first barcode ruler (11) is inserted into the elevation reference point (21) on the retaining wall (2), and the first prism (12) is embedded in the first barcode ruler (11), and the first prism (12) is used to locate the elevation reference point (21); A track inspection barcode ruler assembly (3), which includes: a second barcode ruler (31) and a second prism (32). The second barcode ruler (31) is used to be horizontally installed on the tool rail (4), and the second prism (32) is embedded in the second barcode ruler (31), and the second prism (32) is used to locate the elevation difference monitoring cross-section of the tool rail (4); A survey station assembly (5), which is used to be installed on the tool rail (4). The survey station assembly (5) is used to measure the position information between it and the first prism (12) and the second prism (32), and simultaneously read the elevation information of the first barcode ruler (11) and the second barcode ruler (31).

2. The track-laying fine adjustment measurement system for ballastless track according to claim 1, wherein The survey station assembly (5) includes: A survey station mounting frame (51), which is installed in the area of the poured track slab on the tool rail (4); A total station (52), which is movably installed on the survey station mounting frame (51). The total station (52) can rotate relative to the survey station mounting frame (51) to align with the first prism (12) or the second prism (32); A level (53), which is installed on the total station (52). The total station (52) can rotate synchronously with the total station (52), and when the total station (52) aligns with the first prism (12) or the second prism (32) respectively, the level (53) aims at the first barcode ruler (11) or the second barcode ruler (31) respectively.

3. The track panel fine adjustment measurement system according to claim 2, wherein: The center of the first prism (12) is aligned with the elevation reference point (21) in the axial direction of the first barcode ruler (11), and the center of the second prism (32) is on the axis of the second barcode ruler (31).

4. The track panel fine adjustment measurement system for ballastless track according to claim 2, characterized in that: An automatic leveling button (531) is provided on the level (53), a tray (54) for carrying the level (53) is provided above the total station (52), and a remote trigger mechanism is provided on the tray (54). The remote trigger mechanism is used to trigger the automatic leveling button (531) to make the level (53) perform automatic leveling.

5. The track-laying fine adjustment measurement system for ballastless track according to claim 1, wherein, The track inspection barcode ruler assembly (3) includes: A track inspection trolley (33), which is used to be movably installed on the tool rail (4) and can move between different sleeper blocks (41) on the tool rail (4). The second barcode ruler (31) is installed on the top surface of the track inspection trolley (33); A track parameter measuring mechanism, which is provided on the track inspection trolley (33). The track parameter measuring mechanism is used to obtain the three-dimensional deviation between the top surface of the tool rail (4) and the center of the top surface of the track inspection trolley (33).

6. The track panel fine adjustment measurement system for ballastless track according to claim 1, characterized in that, The retaining wall barcode ruler assembly (1) further includes: The barcode ruler support frame (13) is installed on the retaining wall (2). The first barcode ruler (11) is installed on the barcode ruler support frame (13), and a middle hole for the first barcode ruler (11) to pass through is provided at the bottom of the barcode ruler support frame (13). The leveling member (14) is installed on the barcode ruler support frame (13), and the leveling member (14) is used to level the first barcode ruler (11).

7. A method for precisely adjusting track panels using a track panel precise adjustment measurement system for ballastless tracks as described in claim 1, characterized in that, Including: Install the survey station assembly (5) on the tool rail (4), and obtain the real-time survey station coordinates of the survey station assembly (5). Use the survey station assembly (5) to measure the position information of the second prism (32), and adjust the plane position of the sleeper block (41) at the corresponding position of the tool rail (4) according to the position information of the second prism (32) and the real-time survey station coordinates. Use the survey station assembly (5) to read the elevation information of the first barcode ruler (11) and the second barcode ruler (31), and adjust the elevation of the tool rail (4) according to the elevation information of the first barcode ruler (11) and the second barcode ruler (31).

8. The method for precisely adjusting the track panel of the ballastless track according to claim 7, characterized in that, The obtaining the real-time survey station coordinates of the survey station assembly (5) includes: Obtain the initial survey station coordinates of the center of the survey station assembly (5) according to the positional relationship between the survey station assembly (5) and the control points (22) on the retaining walls (2) on both sides of the tool rail (4). Use the survey station assembly (5) to measure the actual horizontal distance parameters from its center to the axis stability control points (7) arranged at both ends of the bridge respectively. Perform horizontal distance adjustment according to the preset horizontal distance between the two axis stability control points (7) and the actual horizontal distance parameters to obtain the longitudinal coordinate correction value of the survey station. Correct the initial survey station coordinates according to the longitudinal coordinate correction value to obtain the real-time survey station coordinates.

9. The method for precisely adjusting the track panel of the ballastless track according to claim 7, characterized in that, The adjusting the plane position of the sleeper block (41) at the corresponding position of the tool rail (4) according to the position information of the second prism (32) and the real-time survey station coordinates of the survey station assembly (5) includes: Obtain the actual plane coordinates of the second prism (32) according to the position information of the second prism (32) and the real-time survey station coordinates of the survey station assembly (5). Use the track parameter measuring mechanism to obtain the three-dimensional deviation parameters between the top surface of the tool rail (4) and the center of the top surface of the track inspection trolley (33). Obtain the plane adjustment deviation of the top of the tool rail (4) according to the actual plane coordinates of the second prism (32) and the three-dimensional deviation parameters. Adjust the plane position of the sleeper block (41) in the corresponding area of the tool rail (4) according to the plane adjustment deviation of the top of the tool rail (4).

10. The method for precisely adjusting the track panel of the ballastless track according to claim 7, characterized in that, The using the survey station assembly (5) to read the elevation information of the first barcode ruler (11) and the second barcode ruler (31) includes: Drive the total station (52) to rotate to drive the level (53) to rotate horizontally to aim at the first barcode ruler (11), and use the level (53) to read the elevation information of the first barcode ruler (11). Drive the total station instrument (52) to rotate again to drive the level (53) to rotate horizontally to aim at the second barcode ruler (31), and use the level (53) to read the elevation information of the second barcode ruler (31).

Images