A splash-proof high-speed ballasted track structure

Abstract

The present invention is a splash-proof high-speed ballasted track structure, comprising a ballast bed (1), a plurality of sleeper groups (2), rails (3) and a splash-proof device (4), wherein the sleeper groups (2) are arranged in sequence along the longitudinal direction of the ballast bed (1), the rails (3) are arranged on the upper surface of the sleeper groups (2) along the longitudinal direction of the ballast bed (1), and the splash-proof device (4) is a plate-shaped device that is fully paved on the upper surface of the ballast bed (1) where the sleeper groups (2) are not arranged. The present invention lays a splash-proof device that is easy to load and unload on the surface of the ballast bed, thereby ensuring high train operation safety and maintaining the drainage performance and easy maintainability of the line.

Description

Technical Field

[0001] The invention relates to the field of tracks, and in particular to a splash-proof high-speed ballasted track structure. Background Art

[0002] The track structure of high-speed railways can be divided into two categories: ballasted and ballastless. Ballasted tracks have a series of advantages such as low cost, simple construction, and easy maintenance.

[0003] However, the trackbed structure of ballasted track is mainly composed of loose crushed stone ballast. When the train passes, especially under the action of wind generated by the high-speed train, the ballast will fly off the trackbed and cause ballast splashing. The hazards are mainly manifested in: 1. Ballast splashing hits the train axle and causes damage; 2. Ballast splashes on the wheel-rail tread, causing wheel-rail damage, changing the wheel-rail stress, and even causing derailment accidents; 3. Ballast splashing causes environmental pollution. At present, ballast adhesive is mainly used to prevent and control ballast splashing, but this measure increases the difficulty of track structure maintenance and repair, such as the inability to carry out tamping operations or the need for re-spraying after tamping operations. In summary, the research and development of a track structure that retains the advantages of traditional ballasted track and can effectively prevent ballast splashing is of great significance to improving the economy of railways, extending the service life of track structures, and improving the safety of train operations, and has broad application prospects. Summary of the invention

[0004] The present invention aims to solve the problems in the prior art that ballast splashes and hits train axles, causing damage; splashes on wheel-rail treads, causing wheel-rail damage, changing wheel-rail stress, and even causing derailment accidents and environmental pollution. An anti-splash high-speed ballasted track structure is provided, and the above problems are solved by arranging an anti-splash device.

[0005] The present invention provides an anti-splash high-speed ballasted track structure, comprising a ballast bed, a plurality of sleeper groups, rails and an anti-splash device, wherein the sleeper groups are arranged in sequence along the longitudinal direction of the ballast bed, the rails are arranged on the upper surface of the sleeper groups along the longitudinal direction of the ballast bed, and the anti-splash device is a plate-shaped and fully paved upper surface of the ballast bed where no sleeper groups are arranged.

[0006] The ballast surface is paved with an anti-splash device, which is a grid structure that saves materials. Its pore size does not affect the drainage performance of the ballast bed while ensuring that flying ballast with the smallest particle size cannot pass through.

[0007] The splash-proof high-speed ballasted track structure described in the present invention is, as a preferred embodiment, a sleeper group includes a first sleeper, a second sleeper and a third sleeper, and the first sleeper, the second sleeper and the third sleeper are parallel to each other and are arranged in sequence on the upper surface of the track bed.

[0008] The present invention discloses a splash-proof high-speed ballasted track structure. As a preferred embodiment, the splash-proof device comprises a first ballast bed shoulder fixing device, a second ballast bed shoulder fixing device, a first track center fixing device, a second track center fixing device, a first movable device group, a second movable device group, a third movable device group and a fourth movable device group. The first ballast bed shoulder fixing device and the second ballast bed shoulder fixing device are respectively longitudinally arranged on both sides of the sleeper group and the two longitudinal ends are located in the lateral extension range of the first sleeper and the lateral extension range of the third sleeper. The first track center fixing device and the second track center fixing device are respectively arranged in the middle of the interval between the first sleeper and the second sleeper and in the middle of the interval between the second sleeper and the third sleeper. The first movable device group and the second movable device group are respectively arranged between the first track center fixing device and the first ballast bed shoulder fixing device and the second ballast bed shoulder fixing device. The third movable device group and the fourth movable device group are respectively arranged between the second track center fixing device and the first ballast bed shoulder fixing device and the second ballast bed shoulder fixing device.

[0009] Install a splash guard made of flexible material.

[0010] The splash-proof high-speed ballasted track structure described in the present invention is, as a preferred embodiment, a first movable device group includes a first shoulder movable device and a first center movable device, the first shoulder movable device is movably connected to the first track shoulder fixing device, the first center movable device is movably connected to the first track center fixing device, and the first shoulder movable device and the first center movable device are in contact at their free ends; the second movable device group includes a second shoulder movable device and a second center movable device, the second shoulder movable device is movably connected to the second track shoulder fixing device, the second center movable device is movably connected to the first track center fixing device, the second shoulder movable device and The free end of the second center movable device is in contact; the third movable device group includes a third shoulder movable device and a third center movable device, the third shoulder movable device is movably connected to the first track shoulder fixing device, the third center movable device is movably connected to the second track center fixing device, and the third shoulder movable device and the free end of the third center movable device are in contact; the fourth movable device group includes a fourth shoulder movable device and a fourth center movable device, the fourth shoulder movable device is movably connected to the second track shoulder fixing device, the fourth center movable device is movably connected to the second track center fixing device, and the fourth shoulder movable device and the free end of the fourth center movable device are in contact.

[0011] The splash-proof high-speed ballasted track structure described in the present invention is preferably configured such that the rails include a first rail and a second rail, the first rail and the second rail are parallel to each other, and the first rail and the second rail are perpendicular to the sleeper group and arranged on the upper surface of the sleeper group.

[0012] The splash-proof high-speed ballasted track structure described in the present invention is, as a preferred embodiment, the length of the first shoulder movable device and the length of the third shoulder movable device are less than or equal to the minimum distance from the first track bed shoulder fixing device to the first rail; the length of the second shoulder movable device and the length of the fourth shoulder movable device are less than or equal to the minimum distance from the second track bed shoulder fixing device to the second rail.

[0013] The anti-splash high-speed ballasted track structure described in the present invention is preferably configured such that the anti-splash device is a grid structure made of flexible material.

[0014] The splash-proof high-speed ballasted track structure described in the present invention preferably adopts special-grade ballast grading for the track bed.

[0015] The splash-proof high-speed ballasted track structure described in the present invention is preferably connected between the sleeper group and the rail using fasteners with strong height adjustment capability, with a height adjustment range of -10 to +60 mm.

[0016] The anti-splash method of this structure is as follows: the device is made of flexible materials and mainly consists of three parts, including a fixing device on the shoulder of the ballast bed, a fixing device on the center of the track, and a movable device under the rail. It is installed under the rail and between the sleepers, and its size depends on the width of the sleeper box on site. Each sleeper is a unit, and a fixed grid device is used on the shoulder of the sleeper, which does not need to be disassembled when the ballast bed needs to be tamped. The various parts of the device are fixed by flexible fixed pins, and fixed devices are also used along the longitudinal direction of the line; the center of the track is also fixed by a fixing device. Since the center crosses the sleeper, a flexible rod is used to connect the longitudinal direction of the line; the part under the rail is a movable device and can be disassembled during maintenance. The mortise and tenon device is used to rivet with the fixing devices on both sides. When the line needs to be repaired, the anti-splash rail movable device is removed, the mortise and tenon interface is opened, and the grid is directly lifted for tamping. When the maintenance work is completed, the anti-splash movable device is riveted to the fixed structure and the traffic is resumed.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) The various components of the track structure have been optimized, which is conducive to preventing ballast splashing, improving line safety, and making it easy to maintain;

[0019] (2) The anti-splash device is laid on the surface of the ballast bed, which is composed of three parts, a fixed device and a movable device. It can be loaded and unloaded when the ballast bed needs maintenance and repair, and can be restored to its original state after the operation and can be reused;

[0020] (3) The main structure of the anti-splash device is flexible and can adapt to the uneven geometric shape of the ballast particles on the surface of the track bed. It is composed of a grid whose pore size does not affect the drainage performance of the track bed while ensuring that the flying ballast of the smallest particle size cannot pass through. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a splash-proof high-speed ballasted track structure;

[0022] Figure 2 This is a schematic diagram of a sleeper group for a splash-proof high-speed ballasted track structure:

[0023] Figure 3 A schematic diagram of an anti-splash device for a high-speed ballasted track structure;

[0024] Figure 4 It is a schematic diagram of a first movable device group of a splash-proof high-speed ballasted track structure;

[0025] Figure 5 It is a schematic diagram of a second movable device group of a splash-proof high-speed ballasted track structure;

[0026] Figure 6 It is a schematic diagram of the third movable device group of a splash-proof high-speed ballasted track structure;

[0027] Figure 7 It is a schematic diagram of a fourth movable device group of a splash-proof high-speed ballasted track structure;

[0028] Figure 8 The schematic diagram of a splash-proof high-speed ballasted track structure rail.

[0029] Reference numerals:

[0030] 1. Ballast bed; 2. Sleeper group; 21. First sleeper; 22. Second sleeper; 23. Third sleeper; 3. Rail; 31. First rail; 32. Second rail; 4. Anti-splash device; 41. First ballast bed shoulder fixing device; 42. Second ballast bed shoulder fixing device; 43. First track center fixing device; 44. Second track center fixing device; 45. First movable device group; 451. First shoulder movable device; 452. First center movable device; 46. Second movable device group; 461. Second shoulder movable device; 462. Second center movable device; 47. Third movable device group; 471. Third shoulder movable device; 472. Third center movable device; 48. Fourth movable device group; 481. Fourth shoulder movable device; 482. Fourth center movable device. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0032] like Figure 1 As shown, a splash-proof high-speed ballasted track structure includes a ballast bed 1, a plurality of sleeper groups 2, rails 3 and a splash-proof device 4. The sleeper groups 2 are arranged in sequence along the longitudinal direction of the ballast bed 1, and the rails 3 are arranged on the upper surface of the sleeper groups 2 along the longitudinal direction of the ballast bed 1. The splash-proof device 4 is a plate-shaped device that fully covers the upper surface of the ballast bed 1 where no sleeper groups 2 are arranged. The splash-proof device 4 is a grid structure made of flexible material. The ballast bed 1 adopts a special grade ballast gradation. The connection between the sleeper group 2 and the rail 3 adopts fasteners with strong height adjustment capability, and the height adjustment range is -10 to +60 mm. The ballast shoulder pile height is lower than that of the traditional ballasted track, which is beneficial to preventing splashing and saving ballast materials.

[0033] like Figure 2 As shown, the sleeper group 2 includes a first sleeper 21, a second sleeper 22 and a third sleeper 23, which are arranged parallel to each other on the upper surface of the track bed 1. Ordinary concrete sleepers or anti-splash sleepers can be used to prevent ballast from staying on the top surface of the sleepers, further reducing the ballast splash caused by the passage of high-speed trains. Elastic rubber pads can be laid under the sleepers to reduce the degradation of the line.

[0034] like Figure 3 As shown, the anti-splash device 4 includes a first ballast shoulder fixing device 41, a second ballast shoulder fixing device 42, a first track center fixing device 43, a second track center fixing device 44, a first movable device group 45, a second movable device group 46, a third movable device group 47 and a fourth movable device group 48. The first ballast shoulder fixing device 41 and the second ballast shoulder fixing device 42 are respectively longitudinally arranged on both sides of the sleeper group 2 and the two longitudinal ends are located in the lateral extension range of the first sleeper 21 and the lateral extension range of the third sleeper 23. The first track center fixing device 43 and the second track center fixing device 44 are respectively arranged in the middle of the interval between the first sleeper 21 and the second sleeper 22 and in the middle of the interval between the second sleeper 22 and the third sleeper 23, the first movable device group 45 and the second movable device group 46 are respectively arranged between the first track center fixing device 43 and the first track bed shoulder fixing device 41 and the second track bed shoulder fixing device 42, the third movable device group 47 and the fourth movable device group 48 are respectively arranged between the second track center fixing device 44 and the first track bed shoulder fixing device 41 and the second track bed shoulder fixing device 42.

[0035] like Figure 4 As shown, the first movable device group 45 includes a first shoulder movable device 451 and a first center movable device 452. The first shoulder movable device 451 is movably connected to the first track shoulder fixing device 41, and the first center movable device 452 is movably connected to the first track center fixing device 43. The free ends of the first shoulder movable device 451 and the first center movable device 452 are in contact.

[0036] like Figure 5 As shown, the second movable device group 46 includes a second shoulder movable device 461 and a second center movable device 462, the second shoulder movable device 461 is movably connected to the second track shoulder fixing device 42, the second center movable device 462 is movably connected to the first track center fixing device 43, and the free ends of the second shoulder movable device 461 and the second center movable device 462 are in contact.

[0037] like Figure 6 As shown, the third movable device group 47 includes a third shoulder movable device 471 and a third center movable device 472. The third shoulder movable device 471 is movably connected to the first track shoulder fixing device 41, and the third center movable device 472 is movably connected to the second track center fixing device 44. The free ends of the third shoulder movable device 471 and the third center movable device 472 are in contact.

[0038] like Figure 7 As shown, the fourth movable device group 48 includes a fourth shoulder movable device 481 and a fourth center movable device 482, the fourth shoulder movable device 481 is movably connected to the second track bed shoulder fixing device 42, the fourth center movable device 482 is movably connected to the second track center fixing device 44, and the free ends of the fourth shoulder movable device 481 and the fourth center movable device 482 are in contact.

[0039] like Figure 8 As shown, the rails 3 include a first rail 3 and a second rail 3 , the first rail 3 and the second rail 3 are parallel to each other, and the first rail 3 and the second rail 3 are perpendicular to the sleeper group 2 and arranged on the upper surface of the sleeper group 2 .

[0040] The length of the first shoulder movable device 451 and the length of the third shoulder movable device 471 are less than or equal to the minimum distance from the first track bed shoulder fixing device 41 to the first rail 3; the length of the second shoulder movable device 461 and the length of the fourth shoulder movable device 481 are less than or equal to the minimum distance from the second track bed shoulder fixing device 42 to the second rail 3.

[0041] The anti-splash device 4 is mainly composed of three parts: a fixing device on the shoulder of the ballast, a fixing device at the center of the track, and a movable device under the track. It is installed below the rail 3 and between the sleepers 2, and its size depends on the width of the sleeper box on site. Taking each sleeper as a unit, the first ballast shoulder fixing device 41 and the second ballast shoulder fixing device 42 adopt a fixed grid device, which can be left unassembled when the ballast needs to be tamped. The various parts of the device are fixed by flexible fixed pins, and are also fixed by fixing devices along the longitudinal direction of the line; the first track center fixing device 43 and the second track center fixing device 44 are also fixed by fixing devices. Since the center crosses the sleepers, flexible rods are used to connect along the longitudinal direction of the line; the under-rail part is a movable device and can be disassembled during maintenance. The mortise and tenon devices are used to rivet with the fixing devices on both sides. When the line needs maintenance, the first movable device group 45, the second movable device group 46, the third movable device group 47 and the fourth movable device group 48 are removed, the mortise and tenon interface is opened, and the grid is directly lifted for tamping operations. When the maintenance work is completed, the anti-splash movable device is riveted to the fixed structure and traffic is restored.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A splash-proof high-speed ballasted track structure, characterized in that: The invention comprises a ballast bed (1), a plurality of sleeper groups (2), rails (3) and an anti-splash device (4), wherein the sleeper groups (2) are arranged in sequence along the longitudinal direction of the ballast bed (1), the rails (3) are arranged on the upper surface of the sleeper groups (2) along the longitudinal direction of the ballast bed (1), and the anti-splash device (4) is a plate-shaped device that is fully spread on the upper surface of the ballast bed (1) where the sleeper groups (2) are not arranged; The sleeper group (2) comprises a first sleeper (21), a second sleeper (22) and a third sleeper (23), wherein the first sleeper (21), the second sleeper (22) and the third sleeper (23) are arranged in parallel with each other and in sequence on the upper surface of the ballast bed (1); The anti-splash device (4) comprises a first ballast shoulder fixing device (41), a second ballast shoulder fixing device (42), a first track center fixing device (43), a second track center fixing device (44), a first movable device group (45), a second movable device group (46), a third movable device group (47) and a fourth movable device group (48); the first ballast shoulder fixing device (41) and the second ballast shoulder fixing device (42) are respectively longitudinally arranged on both sides of the sleeper group (2) and the two longitudinal ends are located within the lateral extension range of the first sleeper (21) and the lateral extension range of the third sleeper (23); the first track center fixing device (43) and the second track center fixing device (45) are respectively longitudinally arranged on both sides of the sleeper group (2) and the two longitudinal ends are located within the lateral extension range of the first sleeper (21) and the lateral extension range of the third sleeper (23); The track center fixing device (44) is respectively arranged at the middle of the interval between the first rail sleeper (21) and the second rail sleeper (22) and the middle of the interval between the second rail sleeper (22) and the third rail sleeper (23); the first movable device group (45) and the second movable device group (46) are respectively arranged between the first track center fixing device (43) and the first ballast shoulder fixing device (41) and the second ballast shoulder fixing device (42); the third movable device group (47) and the fourth movable device group (48) are respectively arranged between the second track center fixing device (44) and the first ballast shoulder fixing device (41) and the second ballast shoulder fixing device (42); The first movable device group (45) comprises a first shoulder movable device (451) and a first center movable device (452), the first shoulder movable device (451) being movably connected to the first track shoulder fixing device (41), the first center movable device (452) being movably connected to the first track center fixing device (43), and the free ends of the first shoulder movable device (451) and the first center movable device (452) are in contact with each other; the second movable device group (46) comprises a second shoulder movable device (461) and a second center movable device (462), the second shoulder movable device (461) being movably connected to the second track shoulder fixing device (42), the second center movable device (462) being movably connected to the first track center fixing device (43), and the free ends of the second shoulder movable device (461) and the second center movable device (462) are in contact with each other; The third movable device group (47) comprises a third shoulder movable device (471) and a third center movable device (472), the third shoulder movable device (471) is movably connected to the first track shoulder fixing device (41), the third center movable device (472) is movably connected to the second track center fixing device (44), and the free ends of the third shoulder movable device (471) and the third center movable device (472) are in contact with each other; the fourth movable device group (48) comprises a fourth shoulder movable device (481) and a fourth center movable device (482), the fourth shoulder movable device (481) is movably connected to the second track shoulder fixing device (42), the fourth center movable device (482) is movably connected to the second track center fixing device (44), and the free ends of the fourth shoulder movable device (481) and the fourth center movable device (482) are in contact with each other; The anti-splash device (4) is a grid structure made of flexible material.

2. The splash-proof high-speed ballasted track structure according to claim 1, characterized in that: The steel rail (3) comprises a first steel rail (31) and a second steel rail (32); the first steel rail (31) and the second steel rail (32) are parallel to each other; the first steel rail (31) and the second steel rail (32) are arranged perpendicular to the sleeper group (2) on the upper surface of the sleeper group (2).

3. The splash-proof high-speed ballasted track structure according to claim 2, characterized in that: The length of the first shoulder movable device (451) and the length of the third shoulder movable device (471) are less than or equal to the minimum distance from the first ballast shoulder fixing device (41) to the first steel rail (31); the length of the second shoulder movable device (461) and the length of the fourth shoulder movable device (481) are less than or equal to the minimum distance from the second ballast shoulder fixing device (42) to the second steel rail (32).

4. The splash-proof high-speed ballasted track structure according to claim 1, characterized in that: The track bed (1) adopts special grade ballast grading.

5. The splash-proof high-speed ballasted track structure according to claim 2, characterized in that: The connection between the sleeper group (2) and the steel rail (3) is achieved by fastener connection, with a height adjustment range of -10 to +60 mm.

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