Sleeper structure of ballast track railway and construction method thereof

Abstract

The invention relates to the technical field of rail traffic, in particular to a sleeper structure of a ballast track railway and a construction method thereof.The sleeper comprises a body, the bottom face of the body can be connected with an anchor column and a floral tube, a connector is arranged on the side face of the body and used for being connected with a boss, and the bottom face of the boss is flush with the bottom face of the body; and an adhesive can be poured into the railway ballast through the floral tube. The body of the sleeper structure adopts a universal structure, resistance additional structures are not required to be customized for different positions of a line, and anchor posts, floral tubes and bosses can be selectively mounted, so that the resistance of a sleeper ballast bed can be flexibly adjusted according to line conditions, the sleeper ballast bed is suitable for sections with different line gradients and plane curve radiuses, line diseases such as sleeper deflection and ballast bed looseness are greatly reduced, and the service life of the sleeper ballast bed is prolonged. The operation stability and reliability of a track line are remarkably improved, the design requirements of common railways or rack rails in large-gradient and small-radius curve sections are effectively met, and a feasible scheme is provided for ballast track design with larger-gradient track shape and position keeping and more extreme line conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, in particular to a sleeper structure for ballasted track railways and a construction method thereof. Background Art

[0002] Due to the influence of topography and geomorphology, the maximum gradient of mountain railways in western China can reach 250‰, which is much greater than that of existing railways in China. When the line gradient is too large, the track structure will bear huge longitudinal forces. When the longitudinal force on the rail is greater than the longitudinal resistance provided by the ballast bed, the track slab structure will produce longitudinal and transverse movements, resulting in track creep. Track creep will cause line diseases such as sleeper skew and ballast bed loosening, and in severe cases, it will also cause rail buckling and runway expansion, endangering train operation safety.

[0003] Therefore, for large-gradient lines and rack railways applicable to the field of mountain rail transit, sufficient longitudinal and transverse resistances of the ballast bed are necessary conditions to ensure the safe and stable operation of rack trains and prevent the longitudinal and transverse movements of the track slab structure. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the longitudinal and transverse resistances of the existing sleepers are insufficient, and it is easy to have longitudinal movement when applied to lines with larger gradients, endangering train operation safety, and to provide a sleeper structure for ballasted track railways and a construction method thereof.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: In the first aspect, a sleeper structure for ballasted track railways is provided, including a body. The bottom surface of the body can be connected to anchor columns and perforated pipes. An interface is provided on the side surface of the body, and the interface is used to connect to a convex platform. The bottom surface of the convex platform is flush with the bottom surface of the body, and an adhesive for ballast can be poured through the perforated pipe. The perforated pipe is a hollow tubular member, and slurry overflow holes are provided on the pipe wall to facilitate pouring of the adhesive. The adhesive can be a ballast adhesive, mortar, polyurethane and other ballast bed reinforcement materials. The height of the convex platform is designed according to the curve radius of the line.

[0006] Both the anchor columns and the perforated pipes can be symmetrically arranged along the track center line. For example, they can be arranged at the track center line position, or there are respectively anchor columns and perforated pipes on both sides of the track center line to ensure stable force, but the quantity, size and corresponding relationship of the two are not limited.

[0007] The anchor columns and the perforated pipes can be connected to the body, that is, they can be connected by setting joints (or interfaces), or by using external connecting parts. The convex platform can be connected through the interface, that is, the anchor columns, the perforated pipes and the convex platform can all be selected whether to be assembled according to the actual gradient and the curve radius requirements of the line. When the interface is not connected, it can be blocked by a cap or other on-site operation methods (such as grouting).

[0008] Using the sleeper structure of a ballast track railway according to the present invention, the anchor column and the perforated pipe are located at the bottom surface of the body, that is, they can be buried into the ballast, thereby increasing the lateral resistance and longitudinal resistance of the sleeper, effectively improving the slope adaptability of the longitudinal slope, and also enhancing the limiting ability. Due to the small cross-sectional size of the perforated pipe, it is more convenient to insert it into the ballast for installation and can be used for installation positioning. Moreover, the perforated pipe can not only provide resistance like the anchor column, but also be used as a perfusion channel for grouting, gluing, etc., further connecting the body with the surrounding ballast, strengthening the bond between the sleeper and the ballast, and increasing the longitudinal and lateral resistance of the roadbed; the bottom surface of the convex platform is flush with the bottom surface of the body, which can increase the lateral area of the sleeper, improve the longitudinal and lateral resistance of the roadbed, at the same time increase the bearing area of the roadbed, reduce the ballast compressive stress, and increase the stability of the roadbed, especially suitable for increasing the roadbed resistance under the condition of the curve cross slope.

[0009] In summary, the body of the present sleeper structure adopts a general structure, without the need to customize additional resistance structures for different positions of the line. The optional anchor columns, perforated pipes and convex platforms can flexibly adjust the resistance of the sleeper roadbed according to the line conditions, adapt to different line slopes and plane curve radii, greatly reduce line diseases such as sleeper skew and ballast looseness, significantly improve the operation stability and reliability of the track line, and are effectively applicable to the design requirements of ordinary railways with large slopes and rack railways, providing a feasible solution for maintaining the track profile of larger slopes and designing ballast tracks under more extreme line conditions.

[0010] Preferably, the perforated pipe is sleeved outside the anchor column, and there is a gap between the inner wall of the perforated pipe and the outer wall of the anchor column.

[0011] Adopting the way of sleeving the anchor column and the perforated pipe can not only effectively optimize the assembly process between the two and the body, but also optimize the spatial layout of the bottom surface of the body, which is conducive to forming a symmetric layout at both ends of the bottom surface, does not affect grouting, and can also improve the strength of the perforated pipe.

[0012] It does not limit that the anchor column and the perforated pipe must be of the same length.

[0013] Further preferably, the anchor column and the perforated pipe are detachably connected to the body through a connecting piece. The connecting piece includes an upper connecting plate and a lower connecting plate. The anchor column and the perforated pipe are both connected to the bottom surface of the lower connecting plate. The upper connecting plate and the lower connecting plate are respectively clamped on the top surface and the bottom surface of the body. The upper connecting plate and the lower connecting plate are connected by a connecting pipe. The upper connecting plate and the lower connecting plate can both slide along the connecting pipe. The upper end of the connecting pipe is provided with a perfusion port, and the perfusion port is detachably connected with a cap. The lower end of the connecting pipe communicates with the perforated pipe.

[0014] Adopting the above setting method is convenient for flexible installation to adapt to bodies of different sizes. The connecting pipe can not only be used as a connecting piece but also as a grouting channel to inject slurry into the perforated pipe.

[0015] Further preferably, the length of the anchor column is greater than or equal to the length of the floral tube.

[0016] Preferably, the floral tube comprises an upper segment and a lower segment, and the upper segment and the lower segment are connected via a detachable structure.

[0017] Through the detachable connection of the upper and lower segments, the sleeper can be installed and positioned in the ballast through the lower segment, reducing the use of additional auxiliary positioning components, and then the positioning and installation of the sleeper can be completed through the connection between the upper and lower segments, effectively reducing the installation difficulty of the sleeper and improving the installation accuracy.

[0018] Further preferably, the interface includes a plurality of grouting sleeves, the adjacent grouting sleeves on the same side are connected to each other, the grouting sleeves connect the grouting holes and the grouting holes, the grouting holes and the grouting holes are both located on corresponding end faces of the main body, and the boss includes a first steel bar, and the connection between the first steel bar and the grouting sleeve can enable the boss to be connected to the main body.

[0019] It is convenient for stably connecting the boss and also convenient for sealing the interface when the boss is not connected.

[0020] Further preferably, the main body includes a second steel bar, and the grouting sleeve is connected to the second steel bar.

[0021] Two grouting sleeves corresponding to the two sides of the same end are connected to the same second steel bar.

[0022] Further preferably, the position of the interface corresponds to the layout position of the rail, and the anchor column and the flower tube are both located between the center line of the body and the interface.

[0023] By adopting the above arrangement, the overall stability of the sleeper is better, the bearing area of ​​the ballast bed is further increased, and the compressive stress of the ballast bed is reduced.

[0024] Further preferably, the bottom surface of the main body has a pattern.

[0025] In a second aspect, a sleeper construction method is provided, which is applied to a sleeper structure of a ballasted track railway as described above, and comprises the following steps: S1, laying the bottom ballast, and installing the lower section of the flower tube in the bottom ballast; S2, hoisting the main body, and connecting the upper segment of the flower tube on the main body with the corresponding lower segment; S3, laying surface ballast; S4, pouring the ballast through the flower pipe, the ballast including the bottom ballast and the surface ballast, and completing the installation of the sleeper; When the sleeper has a boss, the connection between the boss and the body is completed before step S2.

[0026] Adopting the construction method of a sleeper according to the present invention, positioning is carried out by using the lower section of the perforated pipe, which is convenient to operate, has low positioning difficulty and high precision, is beneficial to reducing the positioning and installation difficulty of the sleeper, is convenient to adapt to the burial depth requirements of the anchor post and the perforated pipe, ensures the longitudinal and lateral resistance of the sleeper, strengthens the connection with the ballast, and better adapts to the laying requirements of different gradient lines and different curve radius sections.

[0027] Preferably, in step S1, the lower section of the perforated pipe is installed through a positioning bracket, the positioning bracket includes a cross beam arranged transversely along the track, two longitudinal beams are slidably connected to the cross beam, several columns are slidably connected to the longitudinal beams, and an elastic bolt is provided on the column, and the elastic bolt can be detachably connected to the slurry overflow hole of the lower section.

[0028] The two longitudinal beams can slide closer or farther away from each other, which is convenient for adjusting the distance between the perforated pipes at both ends of the same sleeper to adapt to the installation requirements of different distances between the perforated pipes at both ends. The columns can slide to adapt to the distance between the perforated pipes on the same side of adjacent sleepers to meet the laying distance between different sleepers. The columns can be positioned subsequently through the installed lower section, with good adaptability and high positioning precision.

[0029] The quantity and distribution positions of the elastic bolts are designed according to actual requirements.

[0030] The longitudinal beam and the column can be locked after sliding to the preset position.

[0031] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are: 1. Adopting the sleeper structure of a ballasted track railway according to the present invention, the body adopts a general structure, there is no need to customize a resistance additional structure for different positions of the line, and the optional anchor posts, perforated pipes and bosses that can be installed can flexibly adjust the resistance of the sleeper ballast according to the line conditions, adapt to different line gradients and plane curve radius sections, greatly reduce line diseases such as sleeper skew and ballast looseness, significantly improve the operation stability and reliability of the track line, and are effectively applicable to the design requirements of ordinary railways with large gradients and rack railways, providing a feasible solution for maintaining the track profile of larger gradients and designing ballasted tracks under more extreme line conditions.

[0032] 2. Adopting the construction method of a sleeper according to the present invention, positioning is carried out by using the lower section of the perforated pipe, which is convenient to operate, has low positioning difficulty and high precision, is beneficial to reducing the positioning and installation difficulty of the sleeper, is convenient to adapt to the burial depth requirements of the anchor post and the perforated pipe, ensures the longitudinal and lateral resistance of the sleeper, strengthens the connection with the ballast, and better adapts to the laying requirements of different gradient lines and different curve radius sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1Is a three-dimensional schematic diagram of the sleeper structure of a ballast track railway Figure 1 ; Figure 2 Is a cross-sectional schematic diagram of the sleeper structure of a ballast track railway Figure 2 (The pattern is not shown); Figure 3 Is an elevation schematic diagram of the sleeper structure of a ballast track railway; Figure 4 Is a side view schematic diagram of the sleeper structure of a ballast track railway; Figure 5 Is a bottom view schematic diagram of the sleeper structure of a ballast track railway; Figure 6 Is a detailed connection drawing of the upper and lower segments of the perforated pipe; Figure 7 Is a schematic diagram of the connection structure between the interface and the boss; Figure 8 Is an installation schematic diagram of the sleeper structure of a ballast track railway; Figure 9 Is a schematic diagram of the structure of the positioning bracket Figure 1 ; Figure 10 Is a schematic diagram of the structure of the positioning bracket Figure 2 .

[0034] Icons: 0 - Ballast; 01 - Bottom layer ballast; 02 - Surface layer ballast; 1 - Body; 11 - Interface; 12 - Second reinforcing bar; 13 - Pattern; 14 - Grouting hole; 15 - Grout outlet hole; 21 - Anchor post; 22 - Perforated pipe; 221 - Overflow hole; 222 - Upper segment; 223 - Lower segment; 3 - Boss; 31 - First reinforcing bar; 41 - Upper connecting plate; 42 - Lower connecting plate; 43 - Connecting pipe; 431 - Cap; 51 - Cross beam; 52 - Longitudinal beam; 53 - Column; 531 - Elastic plug; 54 - Handle. Detailed implementation manners

[0035] The present invention will be described in detail below with reference to the accompanying drawings.

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Unless otherwise specified, in the description of the specific embodiments of the present invention, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / device / installation is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present invention.

[0038] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present invention.

[0039] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0040] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation of more than 9.

[0041] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. This connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0042] Embodiment 1 As shown Figures 1 - 8 in the figure, the sleeper structure of a ballast track railway adopted by the present invention includes a body 1. The bottom surface of the body 1 can be connected to an anchor post 21 and a perforated pipe 22. An interface 11 is provided on the side surface of the body 1. The interface 11 is used to connect to a boss 3. The bottom surface of the boss 3 is flush with the bottom surface of the body 1. Through the perforated pipe 22, an adhesive can be poured into the ballast 0.

[0043] Exemplarily, the structural form of the body 1 adopts a common form in the prior art, and the present application does not limit it. Its material can be selected as a reinforced concrete structure. The interfaces 11 are provided on the front and rear side surfaces of the body 1. A total of four interfaces 11 are symmetrically arranged at both ends of the body 1. Each interface 11 includes a number of grouting sleeves, and the specific number is set according to actual requirements. The adjacent grouting sleeves on the same side communicate with each other. The grouting sleeves communicate with a grouting hole 14 and a slurry outlet hole 15. The grouting hole 14 and the slurry outlet hole 15 are both located on the corresponding end surfaces of the body 1. The boss 3 is exemplified as having a rectangular cross-section, and the side surface away from the body 1 is set as an inclined surface along with the body 1 (the slope is not limited to be the same). The boss 3 includes a first steel bar 31. The connection between the first steel bar 31 and the grouting sleeve enables the boss 3 to be connected to the body 1. The body 1 includes a second steel bar 12. The grouting sleeve is connected to the second steel bar 12. As Figure 7 shown in the figure, the second steel bar 12 connects two grouting sleeves at corresponding positions.

[0044] Whether to set the boss 3 and the planar dimension of the boss 3 are determined according to the actual requirements of the line. The height of the boss 3 is designed according to the curve radius of the line. When the interface 11 is not connected, it can be blocked by a cap or other on-site operation methods (such as grouting). For example, when the curve radius is less than 600 m, the boss 3 is set. As the curve radius gradually decreases, the height and the length along the longitudinal direction of the line of the boss 3 gradually increase.

[0045] Whether to set the anchor post 21 or the perforated pipe 22 and their corresponding structural parameters can also be selected according to actual requirements, and the coexistence relationship among the anchor post 21, the perforated pipe 22 and the boss 3 is not limited. For example, the anchor post 21 or the perforated pipe 22 is generally installed when the longitudinal slope of the line is ≥ 70‰ to 160‰. The buried depth of the anchor post 21 is between 200 mm and 400 mm. The greater the longitudinal slope of the line, the deeper the buried depth. If the longitudinal slope of the line is 160‰ - 250‰, both the anchor post 21 and the perforated pipe 22 need to be set, and the depth of the anchor post 21 further deepens as the slope increases. At a smaller design slope, the boss 3 can also be used in combination with the pattern 13 on the bottom surface to increase the transverse and longitudinal resistance.

[0046] In this embodiment, the anchor post 21 and the perforated pipe 22 are detachably connected to the body 1 through a connecting member. The connecting member includes an upper connecting plate 41 and a lower connecting plate 42. Both the anchor post 21 and the perforated pipe 22 are connected to the bottom surface of the lower connecting plate 42. The upper connecting plate 41 and the lower connecting plate 42 are respectively clamped on the top surface and the bottom surface of the body 1. The upper connecting plate 41 and the lower connecting plate 42 are connected by a connecting pipe 43. Scale marks can be set on the connecting pipe 43 as needed. Both the upper connecting plate 41 and the lower connecting plate 42 can slide along the connecting pipe 43. The upper end of the connecting pipe 43 is provided with a perfusion port, and a cap 431 is detachably connected to the perfusion port. The lower end of the connecting pipe 43 communicates with the upper segment 222 of the perforated pipe 22, as Figures 1 - 5 shown.

[0047] The upper connecting plate 41 has a groove structure, and the width of the groove is adapted to the longitudinal length of the body 1 along the track, which is convenient for quick positioning and installation.

[0048] The perforated pipe 22 is sleeved outside the anchor post 21. There is a gap between the inner wall of the perforated pipe 22 and the outer wall of the anchor post 21. The length of the anchor post 21 is greater than or equal to the length of the perforated pipe 22. The connecting pipes 43 on both the front and rear sides of the body 1 can be used to pour into the perforated pipe 22. The pouring material can be grouting or glue pouring.

[0049] The perforated pipe 22 includes an upper segment 222 and a lower segment 223. The upper segment 222 and the lower segment 223 are connected by a detachable structure, such as the snap structure exemplified in this embodiment, as Figure 6 shown. The length ratio between the upper segment 222 and the lower segment 223 is determined according to the actual installation difficulty, burial depth, etc. The upper segment 222 and the anchor post 21 are welded and connected to the bottom surface of the lower connecting plate 42.

[0050] Through the detachable upper segment 222 and lower segment 223, the lower segment 223 can be used for installation and positioning in the ballast, reducing the use of additional auxiliary positioning components. Then, through the connection between the upper segment 222 and the lower segment 223, the positioning and installation of the sleeper are completed, effectively reducing the installation difficulty of the sleeper and improving the installation accuracy.

[0051] The position of the interface 11 corresponds to the layout position of the rail on the body 1. Both the anchor post 21 and the perforated pipe 22 are located between the center line of the body 1 and the interface 11, that is, inside the rail, but can avoid the layout position of the rack rail, as Figure 8 shown.

[0052] In some alternative embodiments, there are patterns 13 on the bottom surface of the body 1. The form of the patterns 13 can be arbitrarily selected. The patterns 13 can be protrusions or grooves. In this embodiment, a combination form of V-shaped and diamond-shaped is adopted. The opening side of the V-shaped is arranged towards the bottom of the slope. If there is a perforated pipe 22 that needs to be poured, the patterns 13 can adopt the groove form.

[0053] In some optional embodiments, the layout and quantity of the anchor column 21 and the flower tube 22 may also vary. For example, the anchor column 21 is located near the midline, and the flower tube 22 is symmetrically distributed on both sides of the midline, so as to facilitate sufficient perfusion of the left and right sides of the body 1.

[0054] In some optional embodiments, a lower connecting plate 42 similar to the present embodiment can be directly embedded in the bottom surface of the main body 1, and the anchor column 21 and the flower tube 22 can be connected to the main body 1 by welding. The anchor column 21 and the flower tube 22 can also be connected to the side of the main body 1 through the steel bars in the main body 1.

[0055] The sleeper structure of a ballasted track railway described in the present invention adopts a universal structure in which the main body 1 of the sleeper structure does not need to be customized for resistance additional structures at different positions of the line. The optionally installed anchor columns 21, flower tubes 22 and bosses 3 can flexibly adjust the resistance of the sleeper ballast bed according to line conditions, adapt to different line slopes and plane curve radius sections, greatly reduce line diseases such as skewed sleepers and loose ballast beds, significantly improve the operational stability and reliability of the track line, and effectively meet the design requirements of large-slope ordinary railways and rack railways, providing a feasible solution for the design of ballasted tracks with larger slopes and more extreme line conditions.

[0056] Example 2 A sleeper construction method adopted by the present invention is applied to a sleeper structure of a ballasted track railway as in Example 1, and comprises the following steps: S1, laying the bottom ballast 01, and installing the lower segment 223 of the flower tube 22 in the bottom ballast 01; S2, hoisting the body 1, and connecting the upper segment 222 of the flower tube 22 on the body 1 with the corresponding lower segment 223; S3, laying surface ballast 02; S4, injecting adhesive into the ballast 0 through the flower tube 22, wherein the ballast 0 includes a bottom ballast 01 and a surface ballast 02, and completing the installation of the sleeper; When the sleeper has a boss 3, the connection between the boss 3 and the body 1 is completed before step S2.

[0057] In this embodiment, the main body 1 is also assembled with the anchor column 21, the flower tube 22 and the boss 3 as an example. Before installing the sleeper, the anchor column 21 and the flower tube 22 are connected to the main body 1 through the connecting piece, and the boss 3 is connected to the main body 1 through the interface 11.

[0058] like Figure 7As shown, the first steel bar 31 of the boss 3 is inserted into the grouting sleeve. First, the slurry outlet hole 15 is temporarily blocked, and the slurry is poured from the grouting hole 14, which is located on the side away from the outer end of the interface 11, to fill the grouting sleeve. After the sleeve is filled densely, the slurry outlet hole 15 is opened. After the slurry evenly flows out from the slurry outlet hole 15, the grouting is stopped and the grouting hole 14 and the slurry outlet hole 15 are permanently blocked to realize the assembly of the boss 3 and the body 1.

[0059] After the boss 3 and the body 1 are assembled, the anchor post 21 and the perforated pipe 22 can be connected to the body 1. For example, when lifting the concrete sleeper with the boss 3, the lower connecting plate 42, the connecting pipe 43, the anchor post 21 and the perforated pipe 22 are connected to the designated position of the sleeper body 1. The hole of the upper connecting plate 41 is penetrated through the connecting pipe 43 and fixed with bolts, and the matching cap 431 is clamped to complete the assembly.

[0060] According to the designed embedded depth of the anchor post 21, the bottom ballast 01 is paved on the subgrade surface, and the end of the lofting positioning mark protrudes about 1 cm above the bottom ballast 01. The lower segment 223 is removed from the assembled sleeper and installed according to the position indicated by the mark.

[0061] The lower segment 223 of the perforated pipe 22 can be installed through the positioning bracket. As Figures 9 - 10 shown, the positioning bracket includes a cross beam 51 arranged transversely along the track. Two longitudinal beams 52 are slidably connected to the chute of the cross beam 51. A plurality of columns 53 are slidably connected to the chute of the longitudinal beam 52. An elastic bolt 531 is provided on the column 53, and the elastic bolt 531 can be detachably connected to the slurry overflow hole 221 of the lower segment 223. A plurality of elastic bolts 531 can be arranged along the axial direction of the column 53. Scales can be set on the cross beam 51, the longitudinal beam 52 and the column 53 to facilitate the confirmation of the spacing or the embedded depth. A handle 54 is connected to the cross beam 51. Top irons can be arranged at the tops of the longitudinal beam 52 and the column 53, and a magnetic layer is provided on the surface of the top iron. After the spacing of the longitudinal beam 52 or the column 53 is adjusted in place, it can be fixed by magnetic attraction. Of course, other existing locking methods can also be selected. For a rack railway, the length of the longitudinal beam 52 and the number of the columns 53 can be set according to the length of a section of the rack to synchronously position and install the lower segment 223 within the length range of a section of the rack. During installation, the lower segment 223 is clamped to the elastic bolt 531 of the column 53, and the positioning bracket is buried to the designed depth and the corresponding plane position, and then the elastic bolt 531 is pressed to separate the column 53 from the lower segment 223, so as to remove the positioning bracket.

[0062] After that, the sleeper is hoisted, the lower segment 223 is connected to the upper segment 222 to complete the positioning and installation of the sleeper. Then, the surface ballast 02 is paved to the designed elevation, and then the ballast 0 is grouted through the perforated pipe 22 to complete the installation of the sleeper, as Figure 8 shown.

[0063] Adopt the construction method of a sleeper described in the present invention, and use the lower section 223 of the perforated pipe 22 for positioning. The operation is convenient, the positioning difficulty is low, and the accuracy is high, which is beneficial to reducing the positioning and installation difficulty of the sleeper, facilitating the adaptation to the burial depth requirements of the anchor post 21 and the perforated pipe 22, ensuring the longitudinal and lateral resistance of the sleeper, strengthening the connection with the ballast, and better adapting to the laying requirements of different gradient lines and different curve radius sections.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sleeper structure for a ballasted track railway, characterized in that: The invention comprises a main body (1), the bottom surface of which can be connected to an anchor column (21) and a flower tube (22), an interface (11) is provided on the side of the main body (1), the interface (11) is used to connect to a boss (3), the bottom surface of the boss (3) is flush with the bottom surface of the main body (1), and adhesive can be injected into the ballast (0) through the flower tube (22).

2. The sleeper structure of a ballasted track railway according to claim 1, characterized in that: The flower tube (22) is sleeved on the outside of the anchor column (21), and a gap is provided between the inner wall of the flower tube (22) and the outer wall of the anchor column (21).

3. The sleeper structure of a ballasted track railway according to claim 2, characterized in that: The anchor column (21) and the flower tube (22) are detachably connected to the body (1) via a connecting piece, the connecting piece comprising an upper connecting plate (41) and a lower connecting plate (42), the anchor column (21) and the flower tube (22) are both connected to the bottom surface of the lower connecting plate (42), the upper connecting plate (41) and the lower connecting plate (42) are respectively clamped on the top surface and the bottom surface of the body (1), the upper connecting plate (41) and the lower connecting plate (42) are connected via a connecting tube (43), the upper connecting plate (41) and the lower connecting plate (42) are both able to slide along the connecting tube (43), the upper end of the connecting tube (43) is provided with a pouring port, the pouring port is detachably connected with a cap (431), and the lower end of the connecting tube (43) is connected to the flower tube (22).

4. The sleeper structure of a ballasted track railway according to claim 2, characterized in that: The length of the anchor column (21) is greater than or equal to the length of the floral tube (22).

5. A sleeper structure for a ballasted track railway according to any one of claims 1 to 4, characterized in that: The flower tube (22) comprises an upper segment (222) and a lower segment (223), and the upper segment (222) and the lower segment (223) are connected via a detachable structure.

6. The sleeper structure of a ballasted track railway according to claim 5, characterized in that: The interface (11) comprises a plurality of grouting sleeves, the adjacent grouting sleeves on the same side are connected to each other, the grouting sleeves are connected to a grouting hole (14) and a grouting hole (15), the grouting hole (14) and the grouting hole (15) are both located on corresponding end faces of the main body (1), the boss (3) comprises a first steel bar (31), and the first steel bar (31) is connected to the grouting sleeve so that the boss (3) can be connected to the main body (1).

7. The sleeper structure of a ballasted track railway according to claim 6, characterized in that: The body (1) comprises a second steel bar (12), and the grouting sleeve is connected to the second steel bar (12).

8. The sleeper structure of a ballasted track railway according to claim 6, characterized in that: The position of the interface (11) corresponds to the layout position of the rail, and the anchor column (21) and the flower tube (22) are both located between the center line of the body (1) and the interface (11).

9. A sleeper construction method, characterized in that: A sleeper structure for a ballasted track railway as claimed in any one of claims 5 to 8 comprises the following steps: S1, laying a bottom ballast (01), and installing a lower segment (223) of a flower pipe (22) in the bottom ballast (01); S2, hoisting the main body (1), and connecting the upper segment (222) of the flower tube (22) on the main body (1) with the corresponding lower segment (223); S3, laying surface ballast (02); S4, injecting adhesive into the ballast (0) through the flower tube (22), wherein the ballast (0) includes a bottom ballast (01) and a surface ballast (02), and completing the installation of the sleeper; When the sleeper has a boss (3), the connection between the boss (3) and the body (1) is completed before step S2.

10. A sleeper construction method according to claim 9, characterized in that: In step S1, the lower section (223) of the flower tube (22) is installed by a positioning bracket, the positioning bracket includes a crossbeam (51) arranged transversely along the track, two longitudinal beams (52) are slidably connected to the crossbeam (51), a plurality of columns (53) are slidably connected to the longitudinal beam (52), and an elastic pin (531) is provided on the column (53), and the elastic pin (531) can be detachably connected to the overflow hole (221) of the lower section (223).

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