Laterally widely adjustable continuous damping track, sleeper and adjustment method thereof

CN117626719BActive Publication Date: 2026-10-16CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Patent Information

Application Number
CN202311461075.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-06
Publication Date
2026-10-16
Estimated Expiration
2043-11-06

AI Technical Summary

Technical Problem

[0005]本发明的目的是提供一种横向大范围可调连续式减振轨道、其轨枕及调整方法,以解决目前有砟轨道结构存在的平顺度不高、无砟轨道结构存在的调整能力差、减振轨道类型多等问题

Benefits of technology

[0031] 1. This invention overcomes the shortcomings of current ballast track and ballastless track used for subway tunnels passing through ground fissures, and combines the advantages of both to form a multi-directional adjustable ballast track structure with a base. This overcomes the problems of ballast track, such as difficulty in maintaining the geometric shape and position of the track over a long period of time, low smoothness, short cycle of defects, and large amount of maintenance work, as well as the problems of ballastless track, such as poor adjustment ability, complex structure, high construction difficulty, high initial construction cost, and complex maintenance technology.

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Abstract

The present application relates to a kind of transverse wide-range adjustable continuous damping track, its sleeper and adjustment method.Damping ballast and non-ballast track of subway underpass ground fissure have structural defects.The track includes elastic damping wide sleeper, base and ballast bed;The bottom surface of base directly contacts tunnel inverted arch, and the both sides of base are provided with ballast retaining wall, and ballast retaining wall is provided with drain hole, and the both sides of base are provided with drainage ditch;Elastic damping wide sleeper is longitudinally continuously arranged on the top surface of base and is not bonded with base, and resin filling layer is arranged between elastic damping wide sleeper;The periphery of base and elastic damping wide sleeper, the top surface of tunnel inverted arch is filled with broken stone, and forms ballast bed.The present application overcomes the defects of ballast and non-ballast track, combines the advantages of both, can be adjusted vertically, longitudinally and transversely, and the vertical stiffness of damping fastener and elastic damping wide sleeper is matched, so that medium, high and special damping can be realized, with the advantages of low initial construction cost, few track types, strong adjustment ability, etc.
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Description

Technical Field

[0001] This invention relates to the field of track engineering technology, specifically to a transversely adjustable continuous vibration-damping track, its sleepers, and an adjustment method. Background Technology

[0002] Ground fissures are a type of urban geological hazard. Wherever ground fissures pass, various surface and underground structures will crack, and underground water supply and gas pipelines may be disrupted, endangering the operational safety of various surface and underground buildings and pipelines. Since subways are underground linear transportation projects, they cannot avoid ground fissures; therefore, necessary measures must be taken to mitigate their adverse effects. When ground fissure activity is significant, the track structure within the subway tunnel is prone to cracking and damage. When ground fissures are near environmentally sensitive points, appropriate track vibration reduction measures must be implemented. Therefore, the subway track structure must be designed with necessary vibration reduction and adjustment structures to accommodate the large deformations caused by ground fissures.

[0003] Common track structures used for subway tracks passing under ground fissures include upward-adjustable and downward-adjustable structures. Upward-adjustable structures include adjustable frame slab ballastless track (general and moderate vibration reduction), trapezoidal sleeper ballastless track (high vibration reduction), and vibration-damping pad ballast track (special vibration reduction). Downward-adjustable structures include ballasted track (general and moderate vibration reduction) and vibration-damping pad crushed stone track (special vibration reduction). Among these, ballasted track structures have low initial construction costs, short construction periods, and quick repair times when damaged. They are highly adaptable to the subgrade and their geometric adjustments are simple and quick. However, their track geometry is difficult to maintain long-term, resulting in lower smoothness, a shorter period of track defects, greater maintenance workload, and higher maintenance costs. Ballastless track structures have good stability, smoothness and durability, slow track deformation and less maintenance workload, but they have poor adjustment capabilities, complex structure, high construction difficulty, high initial construction costs, and complex maintenance technology. In addition, different track structures need to be laid in sections with different vibration reduction levels, which brings great difficulties to on-site construction and later maintenance.

[0004] Therefore, a more rational subway track structure needs to be designed to pass under the ground fissure to overcome the shortcomings of the current track design. Summary of the Invention

[0005] The purpose of this invention is to provide a transversely adjustable continuous vibration-damping track, its sleepers, and adjustment method to solve the problems of low smoothness in current ballasted track structures, poor adjustment capability in current ballastless track structures, and multiple types of vibration-damping tracks.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A transversely adjustable continuous vibration-damping track, comprising an elastic vibration-damping sleeper, a base, and a ballasted track bed;

[0008] The bottom surface of the base directly contacts the tunnel invert arch, and ballast retaining walls are provided on both sides of the base. Drainage holes are provided inside the ballast retaining walls, and drainage ditches are provided on both sides of the base.

[0009] The elastic vibration damping wide pillows are longitudinally and continuously arranged on the top surface of the base and are not in adhesive contact with the base. A resin filling layer is provided between the elastic vibration damping wide pillows.

[0010] The base and the area around the elastic vibration-damping bolster, as well as the top surface of the tunnel invert, are filled with crushed stone to form the ballast track bed.

[0011] Furthermore, the base is a cast-in-place structure of hydraulic mixture, a cast-in-place structure of low-plasticity concrete, or a cast-in-place structure of reinforced concrete.

[0012] Furthermore, the bottom surface shape of the base is the same as the top surface shape of the tunnel invert, and the top surface of the base is a plane;

[0013] The base is longitudinally segmented, and a transverse expansion joint is reserved between each segment of the base;

[0014] The base is provided with ballast walls on both sides in a longitudinal direction, and drainage holes are provided at longitudinal intervals inside the ballast walls.

[0015] Furthermore, the ballast track bed is filled on both sides of the elastic vibration-damping wide sleeper;

[0016] The filling resin between the longitudinally adjacent elastic vibration-damping wide pillows is filled to 20mm above the bottom corner of the elastic vibration-damping wide pillow;

[0017] The ballast track bed on both sides of the elastic vibration-damping wide pillow is filled to the pillow shoulder.

[0018] On the other hand, a sleeper for a transversely adjustable continuous vibration-damping track is provided, wherein the sleeper is the elastic vibration-damping wide sleeper described above.

[0019] The elastic vibration-damping wide sleeper includes a sleeper body, a compression-type vibration-damping fastener, a rail support platform, and an elastic vibration-damping pad.

[0020] The sleeper body is a prestressed reinforced concrete structure, cast in place on the top surface of the base and in no bonded contact with the base;

[0021] The rail support platform is disposed on both sides of the top surface of the sleeper body, and the rail is installed on the top surface of the rail support platform through the compression-type vibration damping fastener;

[0022] The elastic vibration damping pad is provided on the bottom surface of the sleeper body.

[0023] Furthermore, a vertical pre-embedded sleeve is provided on the top surface of the sleeper body corresponding to the position of the rail support platform, and the pre-embedded sleeve is prefabricated simultaneously with the elastic vibration damping wide sleeper.

[0024] Furthermore, the outer periphery of the pre-embedded sleeve is provided with spiral reinforcing bars.

[0025] Furthermore, the top surface of the elastic damping pad has a strip-shaped damping groove, and the bottom surface of the elastic damping pad has an arc-shaped groove.

[0026] Furthermore, the sleeper body is provided with prestressed longitudinal bars and stirrups.

[0027] On the other hand, a method for adjusting a laterally adjustable continuous vibration-damping track is provided, the method being implemented based on the sleepers of the laterally adjustable continuous vibration-damping track, comprising:

[0028] When local cracks and deformation cause the vertical deformation of the subgrade foundation to exceed the adjustment range of the compression type vibration damping fastener, directly replace the elastic vibration damping wide sleeper with one of different design heights, and use the fastener to fine-tune the rail surface to the design height;

[0029] When local cracks and deformation cause the lateral deformation of the subgrade to exceed the adjustment range of the compression-type vibration damping fastener, the elastic vibration damping sleeper is manually moved laterally to adjust the track orientation to the design orientation.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. This invention overcomes the shortcomings of current ballast track and ballastless track used for subway tunnels passing through ground fissures, and combines the advantages of both to form a multi-directional adjustable ballast track structure with a base. This overcomes the problems of ballast track, such as difficulty in maintaining the geometric shape and position of the track over a long period of time, low smoothness, short cycle of defects, and large amount of maintenance work, as well as the problems of ballastless track, such as poor adjustment ability, complex structure, high construction difficulty, high initial construction cost, and complex maintenance technology.

[0032] 2. The present invention combines compression-type vibration damping fasteners and elastic vibration damping wide pillows in its structure, which can achieve vibration damping effects of different levels in the range of 0 to 15dB.

[0033] 3. This invention employs an adjustable sleeper track structure, matching the prestressed reinforced concrete ballasted sleeper's support platform and pre-embedded sleeves with compression-type vibration-damping fasteners to ensure that the vertical stiffness of the track structure is the same as that of traditional ballastless tracks. It can meet the needs of sleeper transportation, laying, and maintenance during operation; the accompanying compression-type vibration-damping fasteners with large horizontal and vertical adjustment ranges allow for fine-tuning of the track structure under base conditions and maintenance adjustments during operation; elastic vibration-damping pads are adhered to the bottom of the sleepers to improve the durability of the track structure.

[0034] 4. The structure of the present invention involves a base, which is formed by cast-in-place hydraulic mixture, low-plasticity concrete or reinforced concrete under an elastic vibration-damping wide sleeper. The elastic vibration-damping wide sleeper is placed on the base, so that the track of the present invention has the high smoothness, high stability and high durability of traditional ballastless track.

[0035] 5. The structure of this invention adopts a ballasted track bed, which is formed by filling crushed stone ballast on both sides of the sleepers and the cast-in-place base. The crushed stone is compacted and provides lateral track bed resistance for the track frame. When the vertical deformation of the local cracks exceeds the fastener adjustment amount, the track structure height can be adjusted to the design height by replacing sleepers of different heights; when the lateral deformation of the local cracks exceeds the fastener adjustment amount, the track alignment can be adjusted to the design value by mechanical track realignment.

[0036] 6. The present invention uses longitudinally continuous laying of elastic vibration-damping wide sleeper-filled polyester to improve the longitudinal track bed resistance.

[0037] 7. During the operation period of this invention, the vibration damping pads with different stiffnesses under the elastic vibration damping wide pillow can be replaced according to actual needs to achieve flexible adjustment of the vibration damping effect. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0039] Figure 1 This is an elevation view of the track of the present invention.

[0040] Figure 2 This is a cross-sectional view of the track of the present invention.

[0041] Figure 3 This is a plan view of the track of the present invention.

[0042] Figure 4 This is a plan view of the sleeper of the present invention.

[0043] Figure 5This is a cross-sectional view of the sleeper of the present invention.

[0044] Figure 6 This is a cross-sectional view of the sleeper of the present invention.

[0045] Figure 7 This is a plan view of the sleeper reinforcement of the present invention.

[0046] Figure 8 This is a cross-sectional view of the reinforcement of the sleeper according to the present invention.

[0047] Figure 9 This is a cross-sectional view of the reinforcement of the sleeper according to the present invention.

[0048] Figure 10 This is a plan view of the elastic vibration damping pad of the present invention.

[0049] Figure 11 This is an elevation view of the elastic vibration damping pad of the present invention.

[0050] Figure 12 This is a cross-sectional view of the elastic vibration damping pad of the present invention.

[0051] The diagram is labeled as follows:

[0052] 1-Rail, 2-Compression type vibration damping fastener, 3-Elastic vibration damping sleeper, 4-Base, 5-Ballasted track bed, 6-Drainage tunnel, 7-Drainage ditch, 8-Filling resin, 9-Expansion joint, 10-Rail support platform, 11-Elastic vibration damping pad, 12-Embedded sleeve, 13-Prestressed longitudinal reinforcement, 14-Stirrup, 15-Spiral reinforcement. Detailed Implementation

[0053] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0054] In the description of this patent, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "horizontal", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0055] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0056] In a specific implementation, the direction of the line is defined as longitudinal, the direction perpendicular to the direction of the line is defined as transverse, the direction closer to the centerline of the line is defined as inner, and the direction farther from the centerline of the line is defined as outer.

[0057] This invention provides a transversely adjustable continuous vibration-damping track that can adapt to multi-directional deformation of ground fissures. It allows for vertical adjustment of the rail surface height, vertical adjustment of the rail bearing surface height, longitudinal adjustment of the structure, and direct transverse adjustment of the track's orientation. The advantages of this multi-directional adjustment are primarily based on the following structural features of the track:

[0058] like Figure 3 The track of the present invention includes an elastic vibration-damping wide sleeper 3, a base 4 and a ballast track bed 5, and the parts are in direct contact with each other and are all non-fixed connections.

[0059] like Figure 2 The base 4 is a low-plasticity concrete cast-in-place structure or a reinforced concrete cast-in-place structure. Its bottom surface directly contacts the tunnel invert arch and serves as the vertical foundation for the elastic vibration-damping wide sleeper 3. This ensures that the vertical system of this track structure is the same as that of the ballastless track structure, and has high smoothness and high stability.

[0060] like Figure 1 The elastic vibration-damping wide pillow 3 is longitudinally and continuously arranged on the top surface of the base 4 and is not in adhesive contact with the base 4. For example... Figure 4-6 The elastic vibration-damping wide sleeper 3 includes the sleeper body, compression-type vibration-damping fasteners 2, rail support platform 10, and elastic vibration-damping pad 11. For example... Figure 7-9The sleeper body is a prestressed reinforced concrete structure, internally equipped with prestressed longitudinal bars 13 and stirrups 14. It is cast in place on the top surface of the base 4 and has no bonded contact with the base 4. The prestressed structure gives the sleeper high strength, high rigidity, durability, and fatigue resistance, making it well adaptable to construction adjustments and maintenance for multi-directional deformation of ground fissures. When vertical and lateral adjustments are needed to accommodate multi-directional deformation of ground fissures, the elastic vibration-damping wide sleeper 3 is not fixedly connected to the base 4 and is not subject to the longitudinal or lateral constraints of the base 4, so it can be directly removed or moved, making the operation simple. The rail support platform 10 is set on both sides of the top surface of the sleeper body. Vertical embedded sleeves 12 are set on the top surface of the sleeper body corresponding to the position of the rail support platform 10. The embedded sleeves 12 are prefabricated simultaneously with the elastic vibration-damping wide sleeper 3 and have sufficient pull-out resistance. Spiral steel bars 15 are set on the outer periphery of the embedded sleeves 12 to enhance their pull-out resistance. The bottom surface of the sleeper body is provided with an elastic vibration damping pad 11, such as... Figure 10-12 The elastic vibration damping pad 11 has a strip-shaped damping groove on its top surface and an arc-shaped groove on its bottom surface, increasing the bonding area and reducing material usage. The elastic vibration damping pad 11 possesses weather resistance, compression resistance, wear resistance, shear resistance, and corrosion resistance. It is made of EPDM rubber or polyester material, and its foundation modulus is 0.016-0.022 N / mm². 3 .

[0061] After the rail support platform 10 is assembled onto the sleeper body, the top surface of the rail support platform 10 is the rail support surface, and the outer side of the rail support platform 10 is the sleeper shoulder. The top surface of the rail support surface gradually decreases from the sleeper shoulder inward, forming a sloping rail support surface, and the inner side connects to the top surface of the sleeper body. The rail 1 is installed on the top surface of the rail support platform 10 through the compression-type vibration damping fastener 2. The compression-type vibration damping fastener 2 can adjust the rail vertically and laterally within its own adjustment range. The compression-type vibration damping fastener 2 can be of type GJ-II, GJ-III, etc. The compression-type vibration damping fastener 2 uses a double-layer nonlinear elastic pad to adapt to the vertical stiffness of the track. The elastic clip fastening and the iron pad anchoring structure are set separately. The fastener uses elastic pads under the rail and under the iron pad. The static stiffness of the fastener node is 10-16kN / mm, and the static stiffness of a single elastic clip fastener is 10-13kN. Compression-type vibration damping fasteners 2 are generally used in ballastless tracks. This invention innovatively applies them to ballasted prestressed concrete sleepers, enabling the ballasted track structure to have the same large fastener adjustment range and system stiffness as the ballastless track, while also controlling secondary noise and vibration.

[0062] like Figure 2 and Figure 3The base 4 and the sides and top surface of the elastic vibration-damping wide pillow 3 are filled with crushed stone to form a ballast track bed 5, providing lateral track resistance. The ballast track bed 5 on both sides of the elastic vibration-damping wide pillow 3 is filled to the pillow shoulder of the elastic vibration-damping wide pillow 3. The filling resin 8 between the elastic vibration-damping wide pillows (3) is filled to 20mm above the bottom edge of the elastic vibration-damping wide pillow 3, providing longitudinal resistance. When it is necessary to replace or move the elastic vibration-damping wide pillow 3, it can be directly moved. In addition, the ballast track bed 5 can also absorb vibration and reduce noise during operation.

[0063] The improvement of the above structure lies in installing the compression-type vibration-damping fastener 2 onto the elastic vibration-damping wide sleeper 3, which is then cast in place on the base 4. The vertical design concept of the track is the same as that of ballastless track, giving this structure the advantages of ballastless track. Simultaneously, crushed stone ballast is used to fill both sides of the elastic vibration-damping wide sleeper 3 and the base 4, ensuring dense compaction. This makes the lateral design concept of the track the same as that of ballasted track. When significant deformation occurs due to local cracks, adjustments can be made by replacing sleepers of different design heights. This retains the advantages of ballasted track, such as short repair time, strong adaptability to subgrade foundations, high efficiency of mechanized maintenance, and simple and quick geometric adjustment. Therefore, it combines the advantages of both ballasted and ballastless track while eliminating their disadvantages. The vertical stiffness matching design of the vibration-damping fastener and the elastic vibration-damping wide sleeper allows for medium, high, and special vibration reduction. It has the advantages of low initial construction cost, fewer track types, high stability, strong adjustment capability, and low maintenance workload.

[0064] In ballastless track, the sleepers are cast-in-place and fixed to the track bed, making adjustments impossible later. In ballasted track, the sleepers rest on a crushed stone track bed, which deforms rapidly after operation, requiring regular maintenance to restore the track surface elevation. This invention, however, uses a ballastless base to support the sleepers vertically and a ballasted track bed to constrain them laterally, representing a structural form between ballasted and ballastless tracks. The track structure primarily considers longitudinal and lateral stability. Longitudinally, the sleepers are laid continuously with resin filling between them, maintaining stability; laterally, ballast is placed on both sides of the sleepers, providing sufficient lateral stability.

[0065] Based on the aforementioned laterally adjustable continuous vibration reduction track, adaptive adjustments can be made to address ground fissure deformation:

[0066] 1. When the local crack deformation is small and the deformation of the subgrade foundation is within the adjustment range of the compression type vibration damping fastener 2, vertical and horizontal adjustments are made by using the compression type vibration damping fastener 2.

[0067] 2. When local crack deformation causes the vertical deformation of the subgrade foundation (tunnel structure) to exceed the adjustment amount of the compression type vibration damping fastener 2, directly replace the elastic vibration damping wide sleeper 3 with one of different design heights and adjust the rail bearing surface to the design height.

[0068] 3. When the local crack deformation causes the lateral deformation of the subgrade to exceed the adjustment amount of the compression type vibration damping fastener 2, the elastic vibration damping wide sleeper 3 is directly moved laterally by manual track adjustment to adjust the track direction to the design track direction.

[0069] Based on the aforementioned horizontally adjustable continuous vibration reduction track, adaptive adjustments can be made to reduce vibration and noise at ground fissures:

[0070] 1. When laid in a medium vibration reduction area (vibration exceeds the standard by 0-5dB), the stiffness of the compression type vibration damping fastener 2 system is 10-16kN / mm, and no elastic vibration damping pad 11 is set under the combined elastic vibration damping wide pillow 3.

[0071] 2. When laid in high-level vibration-damping areas (vibration exceeding the standard by 5-10 dB), the stiffness of the compression-type vibration-damping fastener 2 system should be 20-30 kN / mm. An elastic vibration-damping pad 11 should be installed under the combined elastic vibration-damping wide sleeper 3, with a foundation modulus of 0.016-0.022 N / mm². 3 .

[0072] 3. When laid in special vibration-damping areas (vibration exceeding the standard by 10-15dB), the stiffness of the compression-type vibration-damping fastener 2 system should be 10-16kN / mm. An elastic vibration-damping pad 11 should be installed under the combined elastic vibration-damping wide sleeper 3, and the foundation modulus of the elastic vibration-damping pad 11 should be 0.016-0.022N / mm. 3 .

[0073] This invention retains the advantages of traditional ballasted and ballastless tracks for ground fissures while overcoming their disadvantages. Specifically, it overcomes the problems of traditional ballasted tracks with a completely granular foundation structure, limited adjustment range of ballasted sleepers and fasteners, high stiffness, difficulty in maintaining track geometry long-term, low smoothness, short defect occurrence cycle, large maintenance workload, and high maintenance costs. It also overcomes the disadvantages of ballastless tracks with a completely cast-in-place foundation structure, poor subgrade adaptability, only adjustable in a single direction, high construction difficulty, and high costs. It features vertical height adjustment, lateral left and right adjustment, and longitudinal forward and backward adjustment capabilities, comprehensively improving the durability of the track system and significantly reducing maintenance costs during operation. The elastic vibration-damping wide sleeper 3 and the compressible vibration-damping fastener 2, through stiffness matching, can achieve a vibration reduction effect in the range of 8 to 15 dB compared to ordinary integral track beds. Compared to traditional ground fissure areas where different track structures are needed for vibration reduction and noise reduction at vibration-sensitive points, this method reduces the types of tracks, lowers the difficulty of design, construction, operation, maintenance, and repair, reduces spare parts and components, and saves on maintenance and repair costs during the operation period.

[0074] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A transversely adjustable continuous vibration damping track, characterized in that: The track includes a flexible vibration-damping wide sleeper (3), a base (4), and a ballast track bed (5); The bottom surface of the base (4) is in direct contact with the tunnel invert arch. Ballast walls are provided on both sides of the base (4). Drainage holes (6) are provided inside the ballast walls. Drainage ditches (7) are provided on both sides of the base (4). The elastic vibration damping wide pillow (3) is longitudinally and continuously disposed on the top surface of the base (4) and is not in adhesive contact with the base (4). Filling resin (8) is disposed between the elastic vibration damping wide pillows (3). The base (4) and the elastic vibration damping bolster (3) are surrounded by crushed stone, and the top surface of the tunnel invert is filled with crushed stone to form the ballast track bed (5). The bottom surface of the base (4) is the same as the top surface of the tunnel arch, and the top surface of the base (4) is a plane; the base (4) is longitudinally segmented, and a transverse expansion joint (9) is reserved between each segment of the base (4); ballast walls are longitudinally and continuously arranged on both sides of the base (4), and drainage holes (6) are longitudinally spaced inside the ballast walls. Both sides of the elastic vibration-damping wide pillow (3) are filled with the ballast track bed (5); the filling resin (8) between the longitudinally adjacent elastic vibration-damping wide pillows (3) is filled to 20mm above the bottom edge of the elastic vibration-damping wide pillow (3); the ballast track bed (5) on both sides of the elastic vibration-damping wide pillow (3) is filled to the shoulder of the elastic vibration-damping wide pillow (3).

2. The transversely adjustable continuous vibration damping track according to claim 1, characterized in that: The base (4) is a cast-in-place structure of hydraulic mixture, a cast-in-place structure of low-plasticity concrete, or a cast-in-place structure of reinforced concrete.

3. The transversely adjustable continuous vibration damping track according to claim 2, characterized in that: The elastic vibration-damping wide sleeper (3) includes a sleeper body, a compression-type vibration-damping fastener (2), a rail support platform (10), and an elastic vibration-damping pad (11). The sleeper body is a prestressed reinforced concrete structure, cast in place on the top surface of the base (4) and in no bonded contact with the base (4); The rail support platform (10) is located on both sides of the top surface of the sleeper body, and the rail (1) is installed on the top surface of the rail support platform (10) through the compression type vibration damping fastener (2). The elastic vibration damping pad (11) is provided on the bottom surface of the sleeper body.

4. The transversely adjustable continuous vibration damping track according to claim 3, characterized in that: The top surface of the sleeper body is provided with a vertical pre-embedded sleeve (12) corresponding to the position of the rail support platform (10). The pre-embedded sleeve (12) and the elastic vibration damping wide sleeper (3) are prefabricated simultaneously.

5. The transversely adjustable continuous vibration damping track according to claim 4, characterized in that: Spiral steel bars (15) are provided on the outer periphery of the pre-embedded sleeve (12).

6. The transversely adjustable continuous vibration damping track according to claim 5, characterized in that: The top surface of the elastic damping pad (11) has a strip-shaped damping groove, and the bottom surface of the elastic damping pad (11) has an arc-shaped groove.

7. The transversely adjustable continuous vibration damping track according to claim 6, characterized in that: The sleeper body is provided with prestressed longitudinal bars (13) and stirrups (14).

8. A method for adjusting a transversely adjustable continuous vibration damping track, characterized in that: The method is implemented based on the transversely adjustable continuous vibration reduction track as described in claim 7, and includes: When the local crack deformation causes the vertical deformation of the foundation to exceed the adjustment amount of the compression type vibration damping fastener (2), the elastic vibration damping wide sleeper (3) with different design heights is directly replaced, and the rail surface is finely adjusted to the design height in conjunction with the fastener; When the local crack deformation causes the lateral deformation of the subgrade to exceed the adjustment amount of the compression damping fastener (2), the elastic damping wide sleeper (3) is manually moved laterally to adjust the track direction to the design track direction.

Citation Information

Patent Citations

  • Wide sleeper plate sticking type ballast track

    CN106436495A

  • Ground crack multi-direction adjustable track

    CN116536974A