CN113026436A - Track roadbed structure - Google Patents
Track roadbed structure Download PDFInfo
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- CN113026436A CN113026436A CN202110311958.2A CN202110311958A CN113026436A CN 113026436 A CN113026436 A CN 113026436A CN 202110311958 A CN202110311958 A CN 202110311958A CN 113026436 A CN113026436 A CN 113026436A
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- bearing platform
- platform
- base
- track
- bearing
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
Abstract
The application relates to the technical field of tracks, in particular to a track roadbed structure. The track roadbed structure comprises a plurality of roadbed units and a plurality of connecting units; the roadbed units are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units are connected through the connecting unit; each roadbed unit comprises a base platform, a foundation column, a first bearing platform, two second bearing platforms, two third bearing platforms, a plurality of connecting assemblies and a plurality of adjusting assemblies; the first bearing platform, the second bearing platform and the third bearing platform extend along the laying direction of the track; the base platform is paved on a road surface, a plurality of base holes matched with the base columns are formed in the base platform, parts of the base columns are inserted into the ground, and the rest parts of the base columns are matched with the base holes; when the subgrade is settled, particularly after-construction settlement occurs, the track subgrade structure drives the first bearing platform to ascend through the movement of the second bearing platform, so that the track subgrade structure is suitable for settlement of the subgrade, normal use of the track is ensured, and the maintenance cost in the later period is reduced.
Description
Technical Field
The application relates to the technical field of tracks, in particular to a track roadbed structure.
Background
At present, a ballastless track refers to a track structure which adopts an integral foundation such as concrete, asphalt mixture and the like to replace a granular gravel track bed. Compared with a ballast track, the ballastless track avoids the splashing of the ballast, has good smoothness, good stability, long service life, good durability and less maintenance work, and is applied more and more. The slab ballastless track structure mainly relates to structures such as a track slab, an asphalt mortar or self-compacting concrete filling layer, a base or a supporting layer and the like, wherein the base or the supporting layer adopts a concrete structure, and the asphalt mortar or the self-compacting concrete filling layer laid on the base or the supporting layer is a structural layer for adjusting and supporting the force transmission of the ballastless track structure.
In actual engineering, due to the influences of factors such as special engineering geology, construction quality control and external environment change, the ballastless tracks of partial roadbed sections can have uneven settlement of the roadbed, particularly after-construction settlement, and the roadbed settlement treatment during the operation of the high-speed railway is very difficult due to the fact that the ballastless track structure is not easy to maintain in the later period.
Disclosure of Invention
The present application provides a track bed structure to improve the above-mentioned problem.
The invention is particularly such that:
a track roadbed structure comprises a plurality of roadbed units and a plurality of connecting units;
the roadbed units are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units are connected through the connecting unit;
each roadbed unit comprises a base platform, a foundation column, a first bearing platform, two second bearing platforms, two third bearing platforms, a plurality of connecting assemblies and a plurality of adjusting assemblies; the first bearing platform, the second bearing platform and the third bearing platform extend along the laying direction of the track;
the base platform is paved on a road surface, a plurality of base holes matched with the base columns are formed in the base platform, parts of the base columns are inserted into the ground, and the rest parts of the base columns are matched with the base holes; along the laying direction of the track, a first installation groove for installing a first bearing platform is formed in the surface, away from the ground, of the base platform, and both side walls of the first installation groove are first inclined surfaces;
two side surfaces of the first bearing platform are both second inclined surfaces; the two second bearing platforms are connected with the base station and respectively positioned at two sides of the first mounting groove, and the surfaces of the two second bearing platforms facing the first mounting groove are third inclined surfaces; the two third inclined planes and the two first inclined planes form a second mounting groove for mounting the first bearing platform together; when the first bearing platform is accommodated in the second installation groove, each second inclined surface is attached to the first inclined surface and the third inclined surface which are on the same side; or each second inclined plane is attached to the third inclined plane on the same side;
along the laying direction of the track, the inclination coefficients of the first inclined plane, the second inclined plane and the third inclined plane are the same;
the second bearing platform is also provided with a plurality of mounting holes, the plurality of mounting holes penetrate through the second bearing platform, and one end, abutted against the base platform, of the second bearing platform is communicated with the other end, which is opposite to the base platform; the plurality of connecting components correspond to the plurality of mounting holes one by one, and each connecting component comprises a connecting threaded sleeve, a connecting bolt and a plurality of base plates; the mounting hole is a rectangular hole; the connecting screw sleeve is provided with a screw hole matched with the connecting bolt; the plurality of backing plates are respectively connected to the outer peripheral surface of the rectangular sleeve, the connecting threaded sleeve is accommodated in the mounting hole, and the side surface of the connecting threaded sleeve or the backing plates are attached to the inner peripheral surface of the mounting hole; the connecting stud is in threaded fit with the screw hole and is connected with the base station;
along the laying direction of the track, the two third bearing platforms are respectively positioned at two sides of the first mounting groove, and the two second bearing platforms are positioned between the two third bearing platforms; the two third bearing platforms are provided with adjusting holes, the adjusting holes penetrate through the third bearing platforms, and the adjusting holes communicate the side surface of the third bearing platform facing the second bearing platform with the other opposite side surface; the adjusting assembly comprises an adjusting stud, the adjusting stud is in threaded connection with the adjusting hole, and one end, facing the first mounting groove, of the adjusting stud is abutted to the second bearing platform.
In an embodiment of the invention, when each second inclined surface is attached to the first inclined surface and the third inclined surface on the same side, the two second bearing platforms are respectively abutted to the third bearing platform on the same side, and the central axis of the connecting stud is overlapped with the central axis of the mounting hole.
In one embodiment of the invention, when each second inclined plane is attached to the third inclined plane on the same side and is spaced from the first inclined plane on the same side, the two second bearing platforms are spaced from the third bearing platform on the same side respectively and abut against the adjusting stud, and the central axis of the connecting stud is spaced from the central axis of the mounting hole; and in the direction from the third bearing platform to the first bearing platform, the number of the base plates of the connecting threaded sleeves close to the third bearing platform side is smaller than that of the base plates close to the first bearing platform side.
In one embodiment of the invention, when the second inclined surface is jointed with the first inclined surface, the surface of the first bearing platform for laying the track is separated from the base platform by a first distance; when the second inclined plane is spaced from the first inclined plane, the spacing between the surface of the first bearing platform, which is used for laying the track, and the base platform is a second distance; the first distance is less than the second distance.
In one embodiment of the invention, a damping layer is paved in the first mounting groove;
a plurality of first bulges are arranged on the bottom surface of the first mounting groove, a plurality of first grooves are arranged on the bottom surface of the first bearing platform, and the first grooves are matched with the first bulges.
In an embodiment of the present invention, the first inclined plane is provided with a plurality of second protrusions, and the second inclined plane and the third inclined plane are both provided with second grooves;
the second grooves on the second inclined plane correspond to the second grooves on the third inclined plane one by one;
when each second inclined plane is attached to the first inclined plane and the third inclined plane on the same side, the second grooves on the second inclined planes and the second grooves on the third inclined planes are matched with the same second protrusion.
In one embodiment of the invention, the connection screw sleeve is matched with the mounting hole in a sliding way;
the length of the connecting stud in the mounting hole is smaller than the length of the connecting stud connected with the base station.
A track roadbed structure construction method is used for paving a track roadbed structure, and comprises the following steps;
paving a plurality of base stations on a road surface;
installing a first bearing platform, and attaching the first inclined plane to the second inclined plane;
mounting a second bearing platform, and enabling the third inclined plane to be attached to the second inclined plane;
mounting a connecting assembly to fix the second bearing platform to the base platform;
mounting an adjusting component to fix the second bearing platform and the third bearing platform;
if the height of the surface of the first bearing platform for mounting the track is consistent with the preset height; installing the first bearing platform in the first installation groove;
if the height of the surface of the first bearing platform for mounting the track is smaller than the preset height; the connecting threaded sleeve is separated from the mounting hole, the adjusting stud is rotated, and the second bearing platform moves towards the direction close to the first bearing platform under the action of the adjusting stud, so that the height of the first bearing platform is increased until the height of the surface, used for mounting the track, of the first bearing platform is consistent with the preset height; adjusting the base plate on the periphery of the connecting threaded sleeve to enable the central axis of the connecting stud to be spaced from the central line of the mounting hole, wherein the spacing length of the central axis of the connecting stud and the central line of the mounting hole is consistent with the length of the motion part of the second bearing platform; placing the connecting threaded sleeve into the mounting hole, and mounting the connecting stud;
installing the next roadbed unit;
until the pavement is finished.
The invention has the beneficial effects that:
the track roadbed structure comprises a plurality of roadbed units and a plurality of connecting units; the roadbed units are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units are connected through the connecting unit; each roadbed unit comprises a base platform, a foundation column, a first bearing platform, two second bearing platforms, two third bearing platforms, a plurality of connecting assemblies and a plurality of adjusting assemblies; the first bearing platform, the second bearing platform and the third bearing platform extend along the laying direction of the track; the base platform is paved on a road surface, a plurality of base holes matched with the base columns are formed in the base platform, parts of the base columns are inserted into the ground, and the rest parts of the base columns are matched with the base holes; along the laying direction of the track, a first installation groove for installing a first bearing platform is formed in the surface, away from the ground, of the base platform, and both side walls of the first installation groove are first inclined surfaces;
two side surfaces of the first bearing platform are both second inclined surfaces; the two second bearing platforms are connected with the base station and respectively positioned at two sides of the first mounting groove, and the surfaces of the two second bearing platforms facing the first mounting groove are third inclined surfaces; the two third inclined planes and the two first inclined planes form a second mounting groove for mounting the first bearing platform together; when the first bearing platform is accommodated in the second installation groove, each second inclined surface is attached to the first inclined surface and the third inclined surface which are on the same side; or each second inclined plane is attached to the third inclined plane on the same side; along the laying direction of the track, the inclination coefficients of the first inclined plane, the second inclined plane and the third inclined plane are the same; the second bearing platform is also provided with a plurality of mounting holes, the plurality of mounting holes penetrate through the second bearing platform, and one end, abutted against the base platform, of the second bearing platform is communicated with the other end, which is opposite to the base platform; the plurality of connecting components correspond to the plurality of mounting holes one by one, and each connecting component comprises a connecting threaded sleeve, a connecting bolt and a plurality of base plates; the mounting hole is a rectangular hole; the connecting screw sleeve is provided with a screw hole matched with the connecting bolt; the plurality of backing plates are respectively connected to the outer peripheral surface of the rectangular sleeve, the connecting threaded sleeve is accommodated in the mounting hole, and the side surface of the connecting threaded sleeve or the backing plates are attached to the inner peripheral surface of the mounting hole; the connecting stud is in threaded fit with the screw hole and is connected with the base station; along the laying direction of the track, the two third bearing platforms are respectively positioned at two sides of the first mounting groove, and the two second bearing platforms are positioned between the two third bearing platforms; the two third bearing platforms are provided with adjusting holes, the adjusting holes penetrate through the third bearing platforms, and the adjusting holes communicate the side surface of the third bearing platform facing the second bearing platform with the other opposite side surface; the adjusting assembly comprises an adjusting stud, the adjusting stud is in threaded connection with the adjusting hole, and one end of the adjusting stud, which faces the first mounting groove, is abutted against the second bearing platform;
therefore, the second bearing platforms are connected with the base platform through the connecting assembly and the adjusting assembly, and in the installation process, the position of the second bearing platforms relative to the base platform can be adjusted through the adjusting assembly, so that the two second bearing platforms can move towards the direction close to the first installation groove, and the first bearing platforms can be matched with the first installation groove and abut against the second bearing platforms; or the first bearing platform is separated from the first mounting groove and is abutted against the second bearing platform;
when each second inclined plane is attached to the first inclined plane and the third inclined plane on the same side, the two second bearing platforms are respectively abutted to the third bearing platform on the same side, and the central axis of the connecting stud is overlapped with the central line of the mounting hole; when each second inclined plane is attached to the third inclined plane on the same side and is spaced from the first inclined plane on the same side, the two second bearing platforms are spaced from the third bearing platform on the same side respectively and are abutted against the adjusting stud, and the central axis of the connecting stud is spaced from the central line of the mounting hole; in the direction from the third bearing platform to the first bearing platform, the number of the base plates of the connecting threaded sleeves close to the third bearing platform side is smaller than that of the base plates close to the first bearing platform side; when the second inclined plane is attached to the first inclined plane, the surface of the first bearing platform for laying the track is separated from the base platform by a first distance; when the second inclined plane is spaced from the first inclined plane, the spacing between the surface of the first bearing platform, which is used for laying the track, and the base platform is a second distance; the first distance is less than the second distance.
In addition, in order to ensure the connection stability between the second bearing platform and the base platform, when the connecting assembly is arranged, the position of the mounting hole can be adjusted by adjusting the interval of the outer peripheral surface of the connecting screw sleeve, and further when the position of the connecting stud connected with the base platform is not changed, namely, when the second bearing platform is connected with the base platform, the base plate can be arranged, and after the second bearing platform moves, the second bearing platform can be fixed on the base platform by connecting the connecting stud with the second bearing platform and the base platform.
To sum up, this track roadbed structure takes place when the road bed subsides, especially takes place to subside after the worker, through the motion of second cushion cap, drives first cushion cap and rises to the normal use of orbital is ensured to the subsidence of adaptation road bed, and reduces the maintenance cost in later stage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural view of a first position of a roadbed unit provided by the present application;
fig. 2 is an exploded schematic view of a roadbed unit provided by the present application;
fig. 3 is a schematic structural view of a second position of the roadbed unit provided by the present application;
FIG. 4 is a schematic structural view of a second platform provided herein;
fig. 5 is a schematic structural diagram of the connection nut provided in the present application.
Icon: 200-roadbed unit; 210-a base station; 220-a base pillar; 230-a first platform; 240-a second platform; 250-a third bearing platform; 260-a connecting assembly; 270-an adjustment component; 211-base pore; 212-a first mounting groove; 213-a first bevel; 214-a second bevel; 215-a third bevel; 216-mounting holes; 217-connecting threaded sleeves; 218-connecting bolts; 219-backing plate; 221-screw holes; 222-an adjustment hole; 223-adjusting the stud.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example (b):
referring to fig. 1 to 5, an embodiment of the invention provides a track roadbed structure, which includes a plurality of roadbed units 200 and a plurality of connection units;
the plurality of roadbed units 200 are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units 200 are connected through the connecting unit;
each roadbed unit 200 comprises a base platform 210, a foundation column 220, a first bearing platform 230, two second bearing platforms 240, two third bearing platforms 250, a plurality of connecting assemblies 260 and a plurality of adjusting assemblies 270; the first bearing platform 230, the second bearing platform 240 and the third bearing platform 250 all extend along the laying direction of the track;
the base 210 is paved on a road surface, a plurality of base holes 211 matched with the base columns 220 are formed in the base 210, parts of the base columns 220 are inserted into the ground, and the rest parts of the base columns 220 are matched with the base holes 211; along the laying direction of the track, a first installation groove 212 for installing a first bearing platform 230 is arranged on the surface of the base platform 210, which is far away from the ground, and both side walls of the first installation groove 212 are first inclined surfaces 213;
both side surfaces of the first platform 230 are the second inclined surfaces 214; the two second bearing platforms 240 are connected with the base platform 210 and respectively located at two sides of the first installation groove 212, and the surfaces of the two second bearing platforms 240 facing the first installation groove 212 are both third inclined surfaces 215; the two third inclined surfaces 215 and the two first inclined surfaces 213 together form a second installation groove for installing the first bearing platform 230; when the first platform 230 is received in the second mounting groove, each of the second inclined surfaces 214 is attached to the first inclined surface 213 and the third inclined surface 215 on the same side; or, each second inclined surface 214 is attached to the third inclined surface 215 on the same side;
the first inclined plane 213, the second inclined plane 214 and the third inclined plane 215 have the same inclination coefficient along the laying direction of the track;
the second bearing platform 240 is further provided with a plurality of mounting holes 216, the plurality of mounting holes 216 all penetrate through the second bearing platform 240, and one end, abutted against the base platform 210, of the second bearing platform 240 is communicated with the other opposite end; the plurality of connecting components 260 correspond to the plurality of mounting holes 216 one by one, and each connecting component 260 comprises a connecting threaded sleeve 217, a connecting bolt 218 and a plurality of backing plates 219; the mounting hole 216 is a rectangular hole; the connecting screw sleeve 217 is a rectangular sleeve, and the connecting screw sleeve 217 is provided with a screw hole 221 matched with the connecting bolt 218; the base plates 219 are respectively connected to the outer peripheral surfaces of the rectangular sleeves, the connecting screw sleeve 217 is accommodated in the mounting hole 216, and the side surface of the connecting screw sleeve 217 or the base plates 219 is attached to the inner peripheral surface of the mounting hole 216; the connecting stud is in threaded fit with the screw hole 221 and is connected with the base table 210;
along the laying direction of the track, the two third bearing platforms 250 are respectively positioned at two sides of the first mounting groove 212, and the two second bearing platforms 240 are positioned between the two third bearing platforms 250; the two third bearing platforms 250 are respectively provided with an adjusting hole 222, the adjusting holes 222 penetrate through the third bearing platforms 250, and the adjusting holes 222 communicate the side surface of the third bearing platform 250 facing the second bearing platform 240 with the other opposite side surface; the adjusting assembly 270 includes an adjusting stud 223, the adjusting stud 223 is screwed with the adjusting hole 222, and one end of the adjusting stud 223 facing the first mounting groove 212 abuts against the second bearing platform 240;
when each second inclined surface 214 is attached to the first inclined surface 213 and the third inclined surface 215 on the same side, the two second bearing platforms 240 are respectively abutted to the third bearing platform 250 on the same side, and the central axis of the connecting stud is overlapped with the central line of the mounting hole 216;
when each second inclined surface 214 is attached to the third inclined surface 215 on the same side and is spaced from the first inclined surface 213 on the same side, the two second bearing platforms 240 are spaced from the third bearing platform 250 on the same side and are abutted to the adjusting stud 223, and the central axis of the connecting stud is spaced from the central line of the mounting hole 216; in the direction from the third bearing platform 250 to the first bearing platform 230, the number of the backing plates 219 on the side of the connecting screw sleeve 217 close to the third bearing platform 250 is smaller than that of the backing plates 219 on the side close to the first bearing platform 230;
when the second inclined surface 214 is attached to the first inclined surface 213, the surface of the first bearing platform 230 for laying the track is spaced from the base platform 210 by a first distance; when the second inclined surface 214 is spaced from the first inclined surface 213, the surface of the first bearing platform 230 for laying the track is spaced from the base platform 210 by a second distance; the first distance is less than the second distance.
The working principle of the track roadbed structure is as follows:
the track roadbed structure includes a plurality of roadbed units 200 and a plurality of connection units; the plurality of roadbed units 200 are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units 200 are connected through the connecting unit; each roadbed unit 200 comprises a base platform 210, a foundation column 220, a first bearing platform 230, two second bearing platforms 240, two third bearing platforms 250, a plurality of connecting assemblies 260 and a plurality of adjusting assemblies 270; the first bearing platform 230, the second bearing platform 240 and the third bearing platform 250 all extend along the laying direction of the track; the base 210 is paved on a road surface, a plurality of base holes 211 matched with the base columns 220 are formed in the base 210, parts of the base columns 220 are inserted into the ground, and the rest parts of the base columns 220 are matched with the base holes 211; along the laying direction of the track, a first installation groove 212 for installing a first bearing platform 230 is arranged on the surface of the base platform 210, which is far away from the ground, and both side walls of the first installation groove 212 are first inclined surfaces 213;
both side surfaces of the first platform 230 are the second inclined surfaces 214; the two second bearing platforms 240 are connected with the base platform 210 and respectively located at two sides of the first installation groove 212, and the surfaces of the two second bearing platforms 240 facing the first installation groove 212 are both third inclined surfaces 215; the two third inclined surfaces 215 and the two first inclined surfaces 213 together form a second installation groove for installing the first bearing platform 230; when the first platform 230 is received in the second mounting groove, each of the second inclined surfaces 214 is attached to the first inclined surface 213 and the third inclined surface 215 on the same side; or, each second inclined surface 214 is attached to the third inclined surface 215 on the same side; the first inclined plane 213, the second inclined plane 214 and the third inclined plane 215 have the same inclination coefficient along the laying direction of the track; the second bearing platform 240 is further provided with a plurality of mounting holes 216, the plurality of mounting holes 216 all penetrate through the second bearing platform 240, and one end, abutted against the base platform 210, of the second bearing platform 240 is communicated with the other opposite end; the plurality of connecting components 260 correspond to the plurality of mounting holes 216 one by one, and each connecting component 260 comprises a connecting threaded sleeve 217, a connecting bolt 218 and a plurality of backing plates 219; the mounting hole 216 is a rectangular hole; the connecting screw sleeve 217 is a rectangular sleeve, and the connecting screw sleeve 217 is provided with a screw hole 221 matched with the connecting bolt 218; the base plates 219 are respectively connected to the outer peripheral surfaces of the rectangular sleeves, the connecting screw sleeve 217 is accommodated in the mounting hole 216, and the side surface of the connecting screw sleeve 217 or the base plates 219 is attached to the inner peripheral surface of the mounting hole 216; the connecting stud is in threaded fit with the screw hole 221 and is connected with the base table 210; along the laying direction of the track, the two third bearing platforms 250 are respectively positioned at two sides of the first mounting groove 212, and the two second bearing platforms 240 are positioned between the two third bearing platforms 250; the two third bearing platforms 250 are respectively provided with an adjusting hole 222, the adjusting holes 222 penetrate through the third bearing platforms 250, and the adjusting holes 222 communicate the side surface of the third bearing platform 250 facing the second bearing platform 240 with the other opposite side surface; the adjusting assembly 270 includes an adjusting stud 223, the adjusting stud 223 is screwed with the adjusting hole 222, and one end of the adjusting stud 223 facing the first mounting groove 212 abuts against the second bearing platform 240;
therefore, the second bearing platform 240 is connected with the base platform 210 through the connecting assembly 260 and the adjusting assembly 270, and in the mounting process, the position of the second bearing platform 240 relative to the base platform 210 can be adjusted through the adjusting assembly 270, so that the two second bearing platforms 240 can move towards the direction close to the first mounting groove 212, and the first bearing platform 230 can be matched with the first mounting groove 212 and is abutted against the second bearing platform 240; or the first bearing platform 230 is separated from the first installation groove 212 and is abutted with the second bearing platform 240;
therefore, when each second inclined surface 214 is attached to the first inclined surface 213 and the third inclined surface 215 on the same side, the two second bearing platforms 240 are respectively abutted to the third bearing platform 250 on the same side, and the central axis of the connecting stud is overlapped with the central line of the mounting hole 216; when each second inclined surface 214 is attached to the third inclined surface 215 on the same side and is spaced from the first inclined surface 213 on the same side, the two second bearing platforms 240 are spaced from the third bearing platform 250 on the same side and are abutted to the adjusting stud 223, and the central axis of the connecting stud is spaced from the central line of the mounting hole 216; in the direction from the third bearing platform 250 to the first bearing platform 230, the number of the backing plates 219 on the side of the connecting screw sleeve 217 close to the third bearing platform 250 is smaller than that of the backing plates 219 on the side close to the first bearing platform 230; when the second inclined surface 214 is attached to the first inclined surface 213, the surface of the first bearing platform 230 for laying the track is spaced from the base platform 210 by a first distance; when the second inclined surface 214 is spaced from the first inclined surface 213, the surface of the first bearing platform 230 for laying the track is spaced from the base platform 210 by a second distance; the first distance is less than the second distance.
In addition, in order to ensure the connection stability between the second support 240 and the base 210, when the connection assembly 260 is provided, the position of the mounting hole 216 can be adjusted by adjusting the distance between the outer peripheral surface of the connection screw 217 and further by keeping the position of the connection stud connected to the base 210 constant, that is, when the second support 240 and the base 210 are connected, the second support 240 can be fixed to the base 210 by the connection of the connection stud to the second support 240 and the base 210 after the second support 240 moves by the installation of the backing plate 219.
To sum up, when the subgrade is settled, especially after-construction settlement occurs, the track subgrade structure drives the first bearing platform 230 to ascend through the movement of the second bearing platform 240, thereby adapting to the settlement of the subgrade, ensuring the normal use of the track, and reducing the maintenance cost in the later period.
In this embodiment, a shock absorbing layer is laid in the first mounting groove 212.
In this embodiment, the bottom surface of the first mounting groove 212 is provided with a plurality of first protrusions, and the bottom surface of the first bearing platform 230 is provided with a plurality of first grooves, and the first grooves are matched with the first protrusions. The first inclined plane 213 is provided with a plurality of second protrusions, and the second inclined plane 214 and the third inclined plane 215 are both provided with second grooves; and the second grooves on the second inclined surface 214 correspond one-to-one to the second grooves on the third inclined surface 215.
In this embodiment, when each of the second inclined surfaces 214 is engaged with the first inclined surface 213 and the third inclined surface 215 on the same side, the second groove on the second inclined surface 214 and the second groove on the third inclined surface 215 are engaged with the same second protrusion.
In this embodiment, the connection nut 217 is slidably fitted with the mounting hole 216.
In the present embodiment, the length of the connection stud located in the mounting hole 216 is smaller than the length of the connection stud connected to the base 210.
Based on the above, the present embodiment further provides a track bed structure construction method, where the track bed structure construction method is used for paving a track bed structure, and the track bed structure construction method includes the following steps;
laying a plurality of pedestals 210 on a road surface;
installing a first bearing platform 230, wherein the first inclined surface 213 is attached to the second inclined surface 214;
mounting the second bearing platform 240, and enabling the third inclined surface 215 to be attached to the second inclined surface 214;
mounting the connection assembly 260 to fix the second platform 240 to the base 210;
mounting an adjustment assembly 270 to secure the second platform 240 to the third platform 250;
if the height of the surface of the first platform 230 for mounting the rail is consistent with the preset height; the first bearing platform 230 is installed in the first installation groove 212;
if the height of the surface of the first platform 230 for mounting the rail is less than the preset height; the connecting screw sleeve 217 is disengaged from the mounting hole 216, and the adjusting stud 223 is rotated, so that the second bearing platform 240 moves towards the direction close to the first bearing platform 230 under the action of the adjusting stud 223, and the height of the first bearing platform 230 is increased until the height of the surface of the first bearing platform 230 for mounting the track is consistent with the preset height; adjusting a backing plate 219 on the periphery of the connecting screw sleeve 217 to enable the central axis of the connecting stud to be spaced from the central line of the mounting hole 216, wherein the spacing length between the central axis of the connecting stud and the central line of the mounting hole 216 is consistent with the length of the moving part of the second bearing platform 240; placing the connecting threaded sleeve 217 into the mounting hole 216, and mounting a connecting stud;
installing the next roadbed unit 200;
until the pavement is finished.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A track roadbed structure, characterized by:
the track roadbed structure comprises a plurality of roadbed units and a plurality of connecting units;
the plurality of roadbed units are sequentially arranged along the laying direction of the track, and any two adjacent roadbed units are connected through the connecting unit;
each roadbed unit comprises a base platform, a foundation column, a first bearing platform, two second bearing platforms, two third bearing platforms, a plurality of connecting assemblies and a plurality of adjusting assemblies; the first bearing platform, the second bearing platform and the third bearing platform extend along the laying direction of the track;
the base platform is paved on a road surface, a plurality of base holes matched with the base columns are formed in the base platform, parts of the base columns are inserted into the ground, and the rest parts of the base columns are matched with the base holes; along the laying direction of the track, a first installation groove for installing the first bearing platform is formed in the surface, deviating from the ground, of the base platform, and both side walls of the first installation groove are first inclined surfaces;
two side surfaces of the first bearing platform are both second inclined surfaces; the two second bearing platforms are connected with the base platform and are respectively positioned on two sides of the first mounting groove, and the surfaces of the two second bearing platforms facing the first mounting groove are third inclined surfaces; the two third inclined planes and the two first inclined planes form a second mounting groove for mounting the first bearing platform together; when the first bearing platform is accommodated in the second installation groove, each second inclined surface is attached to the first inclined surface and the third inclined surface which are on the same side; or each second inclined plane is attached to the third inclined plane on the same side;
along the laying direction of the track, the inclination coefficients of the first inclined plane, the second inclined plane and the third inclined plane are the same;
the second bearing platform is also provided with a plurality of mounting holes, the mounting holes penetrate through the second bearing platform, and one end, abutted against the base platform, of the second bearing platform is communicated with the other end, opposite to the base platform, of the second bearing platform; the connecting components correspond to the mounting holes one by one, and each connecting component comprises a connecting threaded sleeve, a connecting bolt and a plurality of base plates; the mounting hole is a rectangular hole; the rectangular sleeve of the connecting threaded sleeve is provided with a screw hole matched with the connecting bolt; the base plates are respectively connected to the outer peripheral surfaces of the rectangular sleeves, the connecting threaded sleeves are accommodated in the mounting holes, and the side surfaces of the connecting threaded sleeves or the base plates are attached to the inner peripheral surfaces of the mounting holes; the connecting stud is in threaded fit with the screw hole and is connected with the base station;
along the laying direction of the track, the two third bearing platforms are respectively positioned at two sides of the first mounting groove, and the two second bearing platforms are positioned between the two third bearing platforms; adjusting holes are formed in the two third bearing platforms, penetrate through the third bearing platforms, and communicate the third bearing platforms towards the side face of the second bearing platform and the opposite other side face; the adjusting assembly comprises an adjusting stud, the adjusting stud is in threaded connection with the adjusting hole, and one end, facing the first mounting groove, of the adjusting stud is abutted to the second bearing platform.
2. The track roadbed structure of claim 1, wherein:
when each second inclined plane is attached to the first inclined plane and the third inclined plane on the same side, the two second bearing platforms are respectively abutted to the third bearing platform on the same side, and the central axis of the connecting stud is superposed with the central line of the mounting hole.
3. The track roadbed structure of claim 1, wherein:
when each second inclined plane is attached to the third inclined plane on the same side and is spaced from the first inclined plane on the same side, the two second bearing platforms are spaced from the third bearing platform on the same side and are abutted against the adjusting stud, and the central axis of the connecting stud is spaced from the central line of the mounting hole; and in the direction from the third bearing platform to the first bearing platform, the number of the base plates, close to the third bearing platform side, of the connecting threaded sleeves is smaller than that of the base plates, close to the first bearing platform side.
4. The track roadbed structure of claim 1, wherein:
when the second inclined plane is attached to the first inclined plane, the surface of the first bearing platform for laying the track is spaced from the base platform by a first distance; when the second inclined plane is spaced from the first inclined plane, the spacing between the surface of the first bearing platform, which is used for laying the track, and the base platform is a second distance; the first distance is less than the second distance.
5. The track substructure of any of claims 1-4, wherein:
a damping layer is laid in the first mounting groove;
the bottom surface of the first mounting groove is provided with a plurality of first bulges, the bottom surface of the first bearing platform is provided with a plurality of first grooves, and the first grooves are matched with the first bulges.
6. The track roadbed structure of claim 5, wherein:
the first inclined plane is provided with a plurality of second bulges, and the second inclined plane and the third inclined plane are both provided with second grooves;
the second grooves on the second inclined plane correspond to the second grooves on the third inclined plane one by one;
when each second inclined plane is attached to the first inclined plane and the third inclined plane on the same side, the second grooves on the second inclined planes and the second grooves on the third inclined planes are matched with the same second protrusions.
7. The track substructure of any of claims 1-4, wherein:
the connecting threaded sleeve is matched with the mounting hole in a sliding manner;
the length of the connecting stud in the mounting hole is smaller than the length of the connecting stud connected with the base station.
8. A track substructure construction method for laying a track substructure according to any of claims 1 to 7, characterized in that it comprises the following steps;
paving a plurality of the base platforms on a road surface;
installing the first bearing platform, wherein the first inclined plane is attached to the second inclined plane;
mounting the second bearing platform, and enabling a third inclined plane to be attached to the second inclined plane;
installing the connection assembly to secure the second platform to the abutment;
mounting the adjustment assembly to secure the second bearing platform to the third bearing platform;
if the height of the surface of the first bearing platform for mounting the track is consistent with the preset height; installing a first bearing platform in the first installation groove;
if the height of the surface of the first bearing platform for mounting the track is smaller than the preset height; separating the connecting threaded sleeve from the mounting hole, and rotating the adjusting stud to enable the second bearing platform to move towards the direction close to the first bearing platform under the action of the adjusting stud so as to increase the height of the first bearing platform until the height of the surface of the first bearing platform for mounting the track is consistent with the preset height; adjusting a base plate on the periphery of the connecting threaded sleeve to enable the central axis of the connecting stud to be spaced from the central line of the mounting hole, wherein the spacing length between the central axis of the connecting stud and the central line of the mounting hole is consistent with the length of the motion position of the second bearing platform; placing the connecting threaded sleeve into the mounting hole, and mounting the connecting stud;
installing the next roadbed unit;
until the pavement is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311958.2A CN113026436A (en) | 2021-03-24 | 2021-03-24 | Track roadbed structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311958.2A CN113026436A (en) | 2021-03-24 | 2021-03-24 | Track roadbed structure |
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| CN113026436A true CN113026436A (en) | 2021-06-25 |
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| CN202110311958.2A Pending CN113026436A (en) | 2021-03-24 | 2021-03-24 | Track roadbed structure |
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Cited By (1)
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