Method and device for realizing easement curve ultrahigh downslope of fabricated track

Abstract

The invention provides a method and device for achieving an easement curve ultrahigh downslope of a fabricated track, and relates to the technical field of track engineering.The method comprises the steps that first information, second information and third information are obtained, the first information comprises design parameters of a track plate and a track bearing table, the second information comprises design parameters of an easement curve, and the third information comprises design parameters of the easement curve; the third information is the maximum fastener heightening amount allowed by the operation unit; fourth information is obtained through calculation according to the first information and the second information, wherein the fourth information is the maximum ultrahigh downhill amount in the track plate range; according to the fourth information and the third information, calculating height adjustment amount data of each rail bearing table, and performing classification to obtain a classification result; and according to the maximum ultrahigh downhill amount and the height adjustment amount data, calculating to obtain fastener height adjustment amount data. According to track board parameters such as the distance between the fasteners and the number of the fastener sets, flexible adjustment of the height adjusting scheme of the rail bearing table under the conditions of different easement curve parameters and different ultrahigh down slope rates can be achieved, and design and laying of the track board are effectively guided.

Description

Technical Field

[0001] The present invention relates to the technical field of track engineering, and in particular to a method and a device for realizing superelevation and slope following of a transition curve on an assembled track. Background Art

[0002] Rail transit lines are composed of straight lines and curves. In order to balance the centrifugal acceleration generated when the train runs on the curve, superelevation must be set in the curve section, that is, the outer rail of the curve is higher than the inner rail. Curves are divided into circular curves and transition curves. As the connecting section between straight lines and circular curves, the transition curve needs to gradually increase the superelevation from 0 to the superelevation value of the circular curve in the transition curve section.

[0003] Track plates are prefabricated in factories. Usually, 6 to 9 pairs of fasteners are set on a track plate. Below the fasteners are rail supports that receive the rails and fasteners. The coordinates of each set of rail supports have been framed and cannot be rotated and adjusted separately like traditional sleepers. Therefore, compared with the designed line shape, the track plate has a height difference between the inner rail and the outer rail in the vertical direction due to the superelevation slope in the gentle curve section. The existing adjustment method first rotates the track plate according to the minimum superelevation value within the track plate range, and positions the track plate at the rail support platform elevation corresponding to the lowest point of the inner rail surface within the track plate range. The superelevation slope is all achieved by adjusting the height of the fasteners. The existing adjustment method is completely adjusted by fasteners. Although it can also be adjusted to the designed line shape, it occupies a large amount of fastener adjustment, reducing the amount of adjustment left for operation maintenance and repair. As a result, when the lower foundation settlement occurs during the subsequent operation, there will be a problem of insufficient fastener adjustment, which leaves hidden dangers for operation.

[0004] Based on the shortcomings of the prior art, there is an urgent need for a method and device for achieving superelevation and slope compliance of a transition curve on an assembled track. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for realizing superelevation and slope following of a transition curve on an assembled track, so as to improve the above-mentioned problem. In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present application provides a method for realizing superelevation and slope following of a transition curve on an assembled track, comprising:

[0007] Acquire first information, second information and third information, wherein the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment amount allowed by the operating unit;

[0008] Fourth information is calculated based on the first information and the second information, where the fourth information is the maximum superelevation along-slope amount within the track plate range;

[0009] Calculating height adjustment data of each rail support platform according to the fourth information and the third information, and classifying the track plates based on the height adjustment data to obtain classification results;

[0010] The fastener height adjustment amount data is calculated based on the maximum superelevation slope amount and the height adjustment amount data.

[0011] In a second aspect, the present application provides a device for realizing superelevation and slope following of a transition curve on an assembled track, comprising:

[0012] An acquisition module, used to acquire first information, second information and third information, wherein the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment amount allowed by the operating unit;

[0013] A first calculation module, configured to calculate fourth information according to the first information and the second information, wherein the fourth information is a maximum superelevation along-slope amount within a track plate range;

[0014] a second calculation module, configured to calculate height adjustment data of each rail support platform according to the fourth information and the third information, and classify the track plates based on the height adjustment data to obtain classification results;

[0015] The third calculation module is used to calculate the fastener height adjustment amount data according to the maximum superelevation slope amount and the height adjustment amount data.

[0016] The beneficial effects of the present invention are:

[0017] The present invention pre-raises the rail bearing platform during factory manufacturing so that the superelevation slope amount is shared by the rail bearing platform and the fasteners, thereby reducing the fastener height adjustment amount occupied during the construction period, reserving more fastener height adjustment amount for the operation period, and facilitating operation maintenance and repair; according to the track plate parameters such as the fastener spacing and the number of fastener groups, flexible adjustment of the rail bearing platform height adjustment plan under different transition curve parameters and different superelevation slope rates can be achieved, effectively guiding the design and laying of the track plate.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a flow chart of a method for realizing superelevation and following slope of a transition curve for an assembled track according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of a device for realizing superelevation and following slope of a transition curve for an assembled track according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the lifting amount of the P2L track slab support platform with six fasteners on one side;

[0023] Figure 4 A schematic diagram of the lifting amount of the P2R track slab support platform with six fasteners on one side;

[0024] Figure 5 It is a schematic diagram of the applicable working condition of a track plate with six fasteners on one side;

[0025] Figure 6 A schematic diagram of the elevation of the P2L track slab support platform with eight fasteners on one side;

[0026] Figure 7 A schematic diagram of the lifting amount of the P2R track slab support platform with eight fasteners on one side;

[0027] Figure 8 A schematic diagram of the elevation of the P3L track slab support platform with eight fasteners on one side;

[0028] Fig. 9 A schematic diagram of the lifting amount of the P4R track slab support platform with eight fasteners on one side;

[0029] Fig.10 The figure is a schematic diagram of the applicable working conditions of a track plate with eight fasteners on one side.

[0030] Markings in the figure: 1. acquisition module; 2. first calculation module; 21. first calculation unit; 22. first extraction unit; 23. second calculation unit; 3. second calculation module; 31. third calculation unit; 32. first classification unit; 33. first recording unit; 4. third calculation module; 41. fourth calculation unit; 42. fifth calculation unit; 421. seventh calculation unit; 422. eighth calculation unit; 423. ninth calculation unit; 43. sixth calculation unit; 431. tenth calculation unit; 432. eleventh calculation unit; 433. twelfth calculation unit. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a method for achieving superelevation and slope following of a transition curve on an assembled track, comprising steps S100 to S400.

[0035] Step S100, obtaining first information, second information and third information, wherein the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment amount allowed by the operating unit;

[0036] It is understandable that the design parameters of the track slab and the rail support platform involve the specific geometric dimensions, material properties, strength requirements and arrangement of the track slab and the rail support platform. These parameters provide basic data for subsequent calculations and adjustments to ensure that the track slab and the rail support platform can meet the design requirements and ensure safety and stability in actual applications; the design parameters of the transition curve mainly include the radius of the curve, superelevation slope rate, length and other geometric characteristics. These parameters are key elements in track design and determine the stability and comfort of the train when running in the curve section. Especially the maximum superelevation slope rate, which directly affects the superelevation slope adjustment requirements of the track slab. The maximum fastener height adjustment allowed by the operating unit is the maximum adjustment allowed during the actual construction and maintenance process. This parameter limits the maximum height adjustment range that the fastener can withstand, ensuring the stability and safety of the track structure after adjustment.

[0037] Step S200, calculating fourth information according to the first information and the second information, the fourth information being the maximum superelevation along-slope amount within the track plate;

[0038] Further, step S200 includes step S210 to step S230.

[0039] Step S210, calculating the distance between the first pair of rail support platforms and the last pair of rail support platforms according to the first information to obtain the total length of the track plate;

[0040] Step S220, performing data extraction processing according to the second information to obtain the maximum superelevation slope rate of the transition curve;

[0041] Step S230: Calculate the maximum superelevation slope amount according to the total length of the track slab and the maximum superelevation slope rate.

[0042] Specifically, first, the design parameters of the track plate and the rail support in the first information are used to determine the number of fasteners and the spacing between the fasteners on the track plate. For example, 6 pairs of fasteners are set on a track plate, and the distance between each pair of fasteners is 0.6 meters. The total length of the track plate is the number of fasteners minus one multiplied by the spacing between the fasteners, that is, 5×0.6=3 meters. Then, according to the maximum superelevation slope rate in the design parameters of the transition curve, the maximum superelevation slope within the track plate range can be calculated. The specific calculation method is to multiply the total length of the track plate by the maximum superelevation slope rate. For example, assuming that the maximum superelevation slope rate of the transition curve is 2‰, the maximum superelevation slope within the range of a track plate is 3 meters×2‰=6 mm. In this way, the maximum height difference caused by the superelevation slope of each track plate in the transition curve section can be accurately calculated, that is, the fourth information. This information is an important basis for the subsequent determination of the height adjustment amount of each rail support and fastener, ensuring the stability and safety of the track plate in practical applications.

[0043] Step S300, calculating the height adjustment data of each rail support platform according to the fourth information and the third information, and classifying the track plates based on the height adjustment data to obtain a classification result;

[0044] Further, step S300 includes step S310 to step S330.

[0045] Step S310, performing subtraction processing on the fourth information and the third information to calculate and obtain the height adjustment data required for each rail support platform;

[0046] Step S320, classifying the track plates based on the height adjustment data, and classifying the track plates based on the theoretical height adjustment data - the height adjustment amount allowed by the fasteners and the track curve type to obtain classification results;

[0047] Step S330: record the height adjustment data and classification results.

[0048] Specifically, first use the maximum superelevation along the slope within the track slab range to determine the amount of height adjustment that each track support platform needs to bear. According to the fastener height adjustment amount allowed by the operating unit during the construction period, the height adjustment amount that the track support platform needs to bear is determined by calculating the theoretical value of the height difference and subtracting the allowable fastener height adjustment amount. When the track slab contains six fasteners on one side, if the maximum superelevation along the slope is 6 mm minus the allowable fastener height adjustment amount of 3 mm, it is concluded that the track support platform needs to bear a height adjustment of 3 mm. Then, according to different height adjustment data, the track slabs are classified. For example, the type of track slab in which the track support platform is not raised is recorded as P1, and the type of track slab that adopts a linear progressive elevation method is recorded as P2, and is further subdivided into P2L and P2R track slabs for left-deviated curves and right-deviated curves. The height adjustment amount of the track slab track support platform and the applicable working conditions are as follows: Figure 3 , Figure 4 and Figure 5 As shown. Further, when the track plate contains eight fasteners on one side, and because the superelevation along the slope is larger, the track plate is divided into three types: P1, P2 (maximum lifting amount is 3.5 mm), P3 (maximum lifting amount is 7 mm), and further subdivided into P2L, P2R, P3L, P3R track plates for left-deflected curves and right-deflected curves, respectively. The track plate bearing platform height adjustment amount and applicable working conditions are as follows Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 Through this method, the track slabs can be accurately classified according to different height adjustment data, so that in actual construction, the track slab support platform and fasteners can jointly bear the super-high slope amount to ensure the smoothness and safety of the track.

[0049] Step S400, calculating the fastener height adjustment amount data according to the maximum superelevation slope amount and the height adjustment amount data.

[0050] Further, step S400 includes step S410 to step S430.

[0051] Step S410, calculating superelevation slope data at each rail support position according to the maximum superelevation slope within the track plate range;

[0052] Step S420, determining the rail support platform height adjustment amount of each rail support platform according to the superelevation along-slope amount at each rail support platform position and the rail support platform height adjustment amount data;

[0053] It should be noted that step S420 includes steps S421 to S423.

[0054] Step S421, determining the position information of each rail support platform on the track plate according to the design parameters of the track plate;

[0055] Step S422, calculating the superelevation slope data of the rail support platform according to the position information of the rail support platform and the maximum superelevation slope;

[0056] Step S423, determining the height adjustment amount of each rail support platform according to the superelevation slope data of the rail support platform and the maximum allowable fastener height adjustment amount.

[0057] Step S430, calculating the fastener height adjustment data of each fastener according to the superelevation slope data and the rail support platform height adjustment amount.

[0058] It should be noted that step S430 includes steps S431 to S433.

[0059] Step S431, determining the fastener position information of each fastener on the rail support platform according to the design parameters of the rail support platform;

[0060] Step S432, calculating the superelevation along-slope data of the fastener according to the fastener position information and the superelevation along-slope data within the track plate range;

[0061] Step S433, calculating the fastener height adjustment data of each fastener according to the fastener superelevation along-slope data and the rail support platform height adjustment amount.

[0062] It can be understood that the theoretical value of the superelevation slope at each rail support platform minus the rail support platform elevation is the required fastener height adjustment amount at each rail support platform. In this way, the height of each fastener can be accurately adjusted to ensure that the track plate can achieve the superelevation slope required by the design in actual use, thereby ensuring the smoothness and stability of the track.

[0063] Example 2

[0064] like Figure 2 As shown, this embodiment provides a device for realizing superelevation and slope following of a transition curve on an assembled track, comprising:

[0065] Acquisition module 1, used to acquire first information, second information and third information, the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment allowed by the operating unit;

[0066] A first calculation module 2 is used to calculate fourth information according to the first information and the second information, where the fourth information is the maximum superelevation along-slope amount within the track plate;

[0067] A second calculation module 3 is used to calculate the height adjustment data of each rail support platform according to the fourth information and the third information, and classify the track plates based on the height adjustment data to obtain a classification result;

[0068] The third calculation module 4 is used to calculate the fastener height adjustment amount data according to the maximum superelevation slope following amount and the height adjustment amount data.

[0069] In a specific implementation manner disclosed in the present invention, the first calculation module 2 includes:

[0070] A first calculation unit 21 is used to calculate the distance between the first pair of rail support platforms and the last pair of rail support platforms according to the first information to obtain the total length of the track plate;

[0071] A first extraction unit 22 is used to perform data extraction processing according to the second information to obtain the maximum superelevation slope rate of the transition curve;

[0072] The second calculation unit 23 calculates the maximum superelevation slope amount according to the total length of the track slab and the maximum superelevation slope rate.

[0073] In a specific implementation manner disclosed in the present invention, the second calculation module 3 includes:

[0074] The third calculation unit 31 is used to perform subtraction processing on the fourth information and the third information to calculate the height adjustment data required for each rail support platform;

[0075] A first classification unit 32 classifies the track plate based on the height adjustment data, and classifies the track plate based on the theoretical height adjustment data - the height adjustment amount allowed by the fastener and the track curve type to obtain a classification result;

[0076] The first recording unit 33 is used to record the height adjustment amount data and the classification result.

[0077] In a specific implementation manner disclosed in the present invention, the third calculation module 4 includes:

[0078] The fourth calculation unit 41 is used to calculate the superelevation slope data at each rail support position according to the maximum superelevation slope within the track plate range;

[0079] A fifth calculation unit 42 is used to determine the rail support platform height adjustment amount of each rail support platform according to the superelevation along-slope amount at each rail support platform position and the rail support platform height adjustment amount data;

[0080] The sixth calculation unit 43 is used to calculate the fastener height adjustment amount data of each fastener according to the superelevation slope amount data and the track support platform height adjustment amount.

[0081] In a specific implementation of the present invention, the fifth calculation unit 42 includes:

[0082] A seventh calculation unit 421 is used to determine the position information of each rail support on the track plate according to the design parameters of the track plate;

[0083] An eighth calculation unit 422 is used to calculate superelevation slope data of the rail support platform according to the position information of the rail support platform and the maximum superelevation slope;

[0084] The ninth calculation unit 423 is used to determine the rail support platform height adjustment amount of each rail support platform according to the superelevation slope data of the rail support platform and the maximum allowable fastener height adjustment amount.

[0085] In a specific implementation manner disclosed in the present invention, the sixth calculation unit 43 includes:

[0086] A tenth calculation unit 431 is used to determine the fastener position information of each fastener on the rail support platform according to the design parameters of the rail support platform;

[0087] An eleventh calculation unit 432 is used to calculate the fastener superelevation along-slope data according to the fastener position information and the superelevation along-slope data within the track plate range;

[0088] The twelfth calculation unit 433 is used to calculate the fastener height adjustment amount data of each fastener according to the fastener superelevation slope amount data and the rail support platform height adjustment amount.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for realizing superelevation and slope following of a transition curve on an assembled track, characterized in that: include: Acquire first information, second information and third information, wherein the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment amount allowed by the operating unit; Fourth information is calculated based on the first information and the second information, where the fourth information is the maximum superelevation along-slope amount within the track plate range; Calculating height adjustment data of each rail support platform according to the fourth information and the third information, and classifying the track plates based on the height adjustment data to obtain classification results; The fastener height adjustment amount data is calculated based on the maximum superelevation slope amount and the height adjustment amount data.

2. The method for realizing superelevation and slope following of a transition curve for an assembled track according to claim 1, characterized in that: The fourth information is calculated based on the first information and the second information. The fourth information is the maximum superelevation along-slope amount within the track plate range, including: Calculate the distance between the first pair of rail support platforms and the last pair of rail support platforms according to the first information to obtain the total length of the track plate; Performing data extraction processing according to the second information to obtain the maximum superelevation slope rate of the transition curve; The maximum superelevation slope amount is calculated based on the total length of the track slab and the maximum superelevation slope rate.

3. The method for realizing superelevation and slope following of a transition curve for an assembled track according to claim 1, characterized in that: Calculating the height adjustment data of each rail support platform according to the fourth information and the third information, and classifying the track plates based on the height adjustment data to obtain classification results, including: Subtracting the fourth information from the third information to calculate the required height adjustment data of each rail support platform; Classifying the track plates based on the height adjustment data, and classifying the track plates based on theoretical height adjustment data - the height adjustment amount allowed by fasteners and the track curve type to obtain classification results; The height adjustment amount data and the classification result are recorded.

4. The method for realizing superelevation and slope following of a transition curve for an assembled track according to claim 1, characterized in that: The fastener height adjustment data is calculated based on the maximum superelevation slope amount and the height adjustment data, including: According to the maximum superelevation along-slope amount within the track plate range, superelevation along-slope amount data at each rail support platform position is calculated; Determine the height adjustment amount of each rail support platform according to the superelevation along-slope amount at each rail support platform position and the height adjustment amount data of the rail support platform; The fastener height adjustment data of each fastener is calculated based on the superelevation slope data and the rail support platform height adjustment amount.

5. The method for realizing superelevation and slope following of a transition curve for an assembled track according to claim 4, characterized in that: Determining the height adjustment amount of each rail support platform according to the superelevation along-slope amount at each rail support platform position and the height adjustment amount data of the rail support platform includes: Determine the position information of each rail support platform on the track plate according to the design parameters of the track plate; Calculate superelevation slope data of the rail support platform according to the rail support platform position information and the maximum superelevation slope data; Determine the height adjustment amount of each rail support platform based on the superelevation slope data of the rail support platform and the maximum allowable fastener height adjustment amount.

6. A device for realizing superelevation and slope following of a transition curve on an assembled track, characterized in that: include: An acquisition module, used to acquire first information, second information and third information, wherein the first information includes design parameters of the track plate and the rail support, the second information includes design parameters of the transition curve, and the third information is the maximum fastener height adjustment amount allowed by the operating unit; A first calculation module, configured to calculate fourth information according to the first information and the second information, wherein the fourth information is a maximum superelevation along-slope amount within a track plate range; a second calculation module, configured to calculate height adjustment data of each rail support platform according to the fourth information and the third information, and classify the track plates based on the height adjustment data to obtain classification results; The third calculation module is used to calculate the fastener height adjustment amount data according to the maximum superelevation slope amount and the height adjustment amount data.

7. The device for realizing superelevation and slope following of a transition curve for an assembled track according to claim 6 is characterized in that: The first calculation module includes: A first calculation unit, configured to calculate the distance between the first pair of rail support platforms and the last pair of rail support platforms according to the first information to obtain a total length of the track plate; A first extraction unit is used to perform data extraction processing according to the second information to obtain a maximum superelevation slope rate of a transition curve; The second calculation unit calculates the maximum superelevation slope amount according to the total length of the track plate and the maximum superelevation slope rate.

8. The device for realizing superelevation and slope following of a transition curve for an assembled track according to claim 6 is characterized in that: The second calculation module includes: A third calculation unit is used to perform subtraction processing on the fourth information and the third information to calculate the height adjustment amount data required for each rail support platform; A first classification unit classifies the track plate based on the height adjustment data, and classifies the track plate based on theoretical height adjustment data - the height adjustment amount allowed by the fastener and the track curve type to obtain a classification result; The first recording unit is used to record the height adjustment amount data and the classification result.

9. The device for realizing superelevation and slope following of a transition curve for an assembled track according to claim 6, characterized in that: The third calculation module includes: A fourth calculation unit is used to calculate superelevation slope data at each rail support platform position according to the maximum superelevation slope within the track plate range; A fifth calculation unit is used to determine the rail support platform height adjustment amount of each rail support platform according to the superelevation along-slope amount at each rail support platform position and the rail support platform height adjustment amount data; The sixth calculation unit is used to calculate the fastener height adjustment amount data of each fastener based on the superelevation slope amount data and the rail support platform height adjustment amount.

10. The device for realizing superelevation and slope following of a transition curve for an assembled track according to claim 9, characterized in that: The fifth computing unit comprises: A seventh calculation unit, used for determining the position information of each rail support platform on the track plate according to the design parameters of the track plate; An eighth calculation unit is used to calculate the superelevation slope data of the rail support platform according to the position information of the rail support platform and the maximum superelevation slope amount; The ninth calculation unit is used to determine the height adjustment amount of each rail support platform according to the superelevation slope data of the rail support platform and the maximum allowable fastener height adjustment amount.

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