CN216237900U - External limiting assembled track - Google Patents

Abstract

The utility model discloses an external limiting assembled track, which comprises: the track unit comprises track plate modules which are sequentially arranged along the length direction, and a concave-convex embedded structure is arranged between two adjacent groups of track plate modules, so that the two adjacent groups of track plate modules are elastically connected into a whole along the longitudinal direction and are used for limiting and adaptively correcting the connection of the two adjacent groups of track plate modules; the external limiting assembled track further comprises lateral stop blocks which are respectively arranged on two sides of the track slab module, the lateral stop blocks are connected to the supporting foundation and abut against the track slab module corresponding to the lateral stop blocks, and therefore the track slab module is limited along the transverse direction. The external limiting assembled track has the advantages of multi-module combination, strong applicability, miniaturization and light weight of prefabricated modules, convenience in production, transportation and installation, simple structure, simple and convenient assembly method, high assembly efficiency and easiness in replacement.

Description

External limiting assembled track

Technical Field

The utility model relates to the technical field of rail transit, in particular to an external limiting assembled rail.

Background

The development of the high-speed rail technology in China is from endless to strong, and through four stages and more than 20 years of continuous efforts, the high-speed rail technology in China becomes the country with the most comprehensive technology, the strongest innovation capability, the longest operation mileage, the fastest operation speed and the largest building scale in the world. By the end of 2020, the operating mileage of high-speed railways in China breaks through 3.5 kilometers, and according to 2016 (year).) in medium-long term railway network planning and fifteen (year twelve) in comprehensive transportation system planning), high-speed railway construction of a certain scale is continued in future in China, the scale of the high-speed railways reaches 3.8 kilometers by 2025, and the scale of the high-speed railways reaches about 4.5 kilometers in a long term. In the compendium for construction of the strong traffic nation published by the State Council and Central administration in 2019, higher requirements are put forward for future rail traffic development in China, namely, traffic which is safer, more reliable, more economical, more efficient, more comfortable, more convenient, more energy-saving and more environment-friendly is provided for people. High-speed rail has been developed unprecedentedly in other countries around the world, and at present, in addition to the countries such as japan, france, germany, italy, spain, belgium and the like which have opened high-speed rail, more than 10 countries are building high-speed rail, more than 20 countries are planning high-speed rail, and high-speed rail transit system has become a plurality of priority development plans in the world. With the implementation of the advices of 'Panasia railway' and 'one-way-by-one' and the like, the strategy of 'going out' of high-speed rail in China is further accelerated, and valuable opportunities are created for developing the international market of the high-speed rail in China. Therefore, the development of the high-speed railway construction technology research is the urgent need of 'independent innovation', 'going away', 'continuous lead to the development of the world high-speed railway' in China.

The ballastless track structure has become a main track structure type of a high-speed railway due to the advantages of high smoothness, high stability, less maintenance and the like, and the common structure comprises a track plate, a filling layer, a concrete base or a supporting layer. At present, except that the track plate is prefabricated in a factory, other parts of the slab ballastless track structure of the high-speed railway, such as a bed plate and a filling layer, are manufactured in a cast-in-place mode, and the track structure is constructed in a reverse method, namely, a concrete base or a supporting layer is poured firstly, then the filling layer is formed between the prefabricated track plate and the concrete base or the supporting layer through pouring and filling so as to connect the track plate and the concrete base or the supporting layer, then the track plate is finely adjusted firstly, and then a slab lower adjusting layer is poured. The vertical multilayer and longitudinal heterogeneous belt-shaped structure system has the characteristics of large difference of building material properties, multiple structural layers, complex service environment and the like, and has the following problems in the actual operation process:

firstly, the traditional construction method of the high-speed railway track structure has large workload of field wet operation, causes the problems of high precision control difficulty, poor quality stability, high construction cost and the like of the track structure, and easily causes hidden danger of construction quality;

secondly, the concrete base and the cement emulsified asphalt mortar layer/self-compacting concrete in the prefabricated plate type ballastless track are constructed on site, the construction efficiency is influenced by more working procedures, and the durability of the cement emulsified asphalt mortar layer is poor;

and thirdly, due to the structure and construction mode of the existing track structure, the track slab is difficult to maintain and repair, difficult to replace and high in maintenance cost.

In conclusion, China makes an important breakthrough in the aspect of ballastless track structures and provides guarantees for the strategy of rapid development and 'going away' of high-speed railways in China, but because the research and development and operation time of ballastless track structure systems in China are short, the traditional track form and construction method cannot meet the requirements of track structure construction with high precision, few diseases, energy conservation, environmental protection and intelligence, and the selection range of completely independently innovative track structure forms is limited. Therefore, a full-life design concept, intelligent construction, operation and maintenance technology and the like based on safety service are urgently needed, and research on a novel track structure and a construction technology thereof is deeply developed to form a novel assembly type track structure with independent intellectual property rights and an intelligent construction complete technology thereof.

SUMMERY OF THE UTILITY MODEL

The utility model provides an external limiting assembled track, which is formed by assembling a plurality of modules into a track slab through a rapid dry method, and solves the technical problems of large workload of field wet operation, poor quality stability, complex process, difficult maintenance and repair of a track structure, difficult replacement and the like of the conventional ballastless track structure.

The technical scheme adopted by the utility model is as follows:

an external spacing pin-connected panel track includes: the railway track assembly is constructed on a supporting foundation and extends along the running direction of a train, track units sequentially arranged along the length direction of the base assembly are paved on the base assembly, each track unit comprises track plate modules sequentially arranged along the length direction, a concave-convex embedded structure is arranged between every two adjacent sets of track plate modules, and the concave-convex embedded structures are used for enabling the two adjacent sets of track plate modules to be elastically connected into a whole along the longitudinal direction and limiting and adaptively correcting the connection of the two adjacent sets of track plate modules; the external limiting assembled track further comprises lateral stop blocks which are respectively arranged on two sides of the track slab module, the lateral stop blocks are connected to the supporting foundation and abut against the track slab module corresponding to the lateral stop blocks, and therefore the track slab module is limited along the transverse direction.

Furthermore, the track plate module comprises track plates which are sequentially laid on the base assembly at intervals along the length direction of the base assembly, steel rails which extend along the length direction of the base assembly and are parallelly laid above the track plates at intervals, and track bearing platforms which are sequentially laid on the upper surface of the track plates at intervals along the length direction of the track plates so as to support the correspondingly arranged steel rails; the rail bearing platform is connected with a fastener group used for locking and fixing the corresponding steel rail and the rail bearing platform.

Furthermore, the concave-convex embedded structure comprises an outward bulge and an inward groove which are respectively arranged on the connecting ends of the two adjacent track plates, and an elastic filling piece for elastically connecting the two adjacent track plates; the outward bulge and the inward groove are oppositely matched to form a concave-convex matching structure; the elastic filling piece is arranged between the connecting ends of the two adjacent track plates and is deformed and embedded between the concave-convex matching structures.

Furthermore, a group of concave-convex matching structures are arranged between two adjacent track plates, and outward protrusions of the concave-convex matching structures are inserted into the oppositely arranged inward grooves along the running direction of the train; the elastic filling pieces are deformed and clamped between the concave-convex matching structures.

Furthermore, a plurality of groups of concave-convex matching structures are arranged between two adjacent track plates and are sequentially arranged along the width direction of the track plates; a plurality of outward bulges of the plurality of groups of concave-convex matching structures are sequentially arranged on the connecting end of the first track plate, and a plurality of inward grooves of the plurality of groups of concave-convex matching structures are sequentially arranged on the connecting end of the adjacent second track plate; or a plurality of outward bulges of the multi-group concave-convex matching structure are respectively arranged on the connecting ends of the two adjacent track plates, and a plurality of inward grooves of the multi-group concave-convex matching structure are correspondingly arranged on the connecting ends of the two adjacent track plates; the elastic filling pieces are deformed and clamped among the groups of concave-convex matching structures.

Furthermore, the outward bulge is in one of a ladder shape, a triangle shape, a U shape and a swallow tail shape; the inward groove is in a shape matched with the outward bulge.

Furthermore, a plurality of lateral stop blocks are respectively arranged on two sides of the track plate and are sequentially arranged at intervals along the length direction of the track plate; the lower extreme and the support basis of each side direction dog are fixed, and it is spacing that the upper end lateral wall top of each side direction dog supports the side of the track board that corresponds the setting, or the upper end of side direction dog compresses tightly the base assembly and supports the side of the track board that corresponds the setting spacing.

Further, the base assembly comprises a base plate which plays a supporting role and is used for leveling the steel rail, and an intermediate layer which is laid on the base plate along the length direction of the base plate; the base plate is constructed on the supporting foundation and extends along the running direction of the train; the track plates are sequentially laid on the middle layer at intervals along the length direction of the middle layer.

Furthermore, the external limiting assembled track also comprises limiting baffle tables, wherein the limiting baffle tables are arranged between two adjacent sets of track slab modules and are alternately arranged with the concave-convex embedded structures along the length direction of the base plate; the limiting blocking platform is used for elastically limiting the track slab module in the longitudinal direction and the transverse direction, and the lower end of the limiting blocking platform is fixed with the base plate.

Further, the supporting foundation is a railway roadbed, or a box girder on a support on a pier, or a tunnel foundation; the bed plate is also used for accurately controlling the height and the smoothness of the external limiting assembled track in the pouring forming process.

The utility model has the following beneficial effects:

in the external limiting assembled track, track slab modules are sequentially laid on a base assembly at intervals, and two adjacent groups of track slab modules are elastically connected into a whole along the longitudinal direction through a concave-convex embedded structure between the two track slab modules, so that the track slab modules have slippage in a certain longitudinal range to adapt to the change of temperature and load, the connected track slab modules are limited through connection, and the track slab modules can be subjected to adaptive fine adjustment and correction of pavement positions or service periods according to the conditions of temperature and load through the elastic connection function of the concave-convex embedded structure, so that the installation and service precision of the track structure is improved, and the track structure is good in smoothness; on the other hand, the existing track structure adopting the lateral stop blocks realizes the longitudinal connection of the track slabs by utilizing the seam steel bars, in the structure, the track slab modules are in concave-convex fit and outer side limit structural mode, the track slab modules are mutually independent, the later-stage disassembly and assembly are quick and convenient, and the longitudinal connecting steel bars do not need to be cut, so that the structure has huge advantages compared with the existing structural form, and the adjacent track slab modules can be quickly installed and connected on site through concave-convex embedded structures, the track forming efficiency and quality are improved, the modularized and assembled forming mode is realized, and the development requirements of modern tracks are met.

In the external limiting assembled track, the track unit is combined by multiple modules through the track plate modules, so that the external limiting assembled track has strong applicability, the track plate modules are designed in a standardized way, produced in a factory and installed in an intelligent way, the prefabricated modules are miniaturized and lightened, the production, stacking, transportation and installation are convenient, the track forming efficiency and quality are improved, a modularized and assembled forming mode is realized, the assembling method is simple and convenient, the assembling efficiency is high, and the development requirements of modern tracks are met; on the other hand, compared with the prior art, when the track slab is damaged in the operation process, the whole track slab is replaced or maintained, only the damaged track slab module needs to be replaced or maintained, the rapid repair can be realized, the replacement is simple, the maintenance cost is low, the maintenance required period is short, and the labor intensity of workers is low.

Compared with the prior art that the smoothness of the whole top surface of the track structure is controlled by pouring the filling layer between the track plate and the base plate through site construction, in the external limiting assembled track, the smoothness of the top surface of the base plate can be accurately controlled in the process of pouring the base plate of the base assembly, and further the smoothness of the whole top surface of the external limiting assembled track is controlled; or the base plate is prefabricated and molded in a factory, and a leveling adjustment layer is formed on the supporting base by casting in situ so as to form millimeter-level precision of the top surface of the base plate; or the base plate is replaced by asphalt, high-performance concrete or the existing novel material, and the track plate is pressed down to form the millimeter-level precision of the top surface during cast-in-place, so that the external limiting assembled track has the advantages of simple fine adjustment and installation, high installation precision, various forms and simple construction process.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic three-dimensional structure of an external limiting split track according to a preferred embodiment of the present invention;

FIG. 2 is a three-dimensional exploded schematic view of FIG. 1;

fig. 3 is a schematic three-dimensional structure of the external limiting assembled track in fig. 1 constructed on a roadbed;

FIG. 4 is a schematic three-dimensional structure of the external limiting assembly track in FIG. 1 constructed on a bridge;

fig. 5 is a schematic three-dimensional structure diagram of the external limiting assembled track in fig. 1 built on a tunnel;

fig. 6 is a partially exploded view of a circular limit stop.

Description of the figures

1. A steel rail; 2. a fastener group; 4. a track slab module; 401. a rail bearing platform; 402. a track plate; 403. outward bulge; 404. An elastic filling sheet; 5. an intermediate layer; 6. a base plate; 7. a limiting stop table; 701. an elastic connecting ring; 702. limiting a compression ring; 703. a damping connecting column; 704. connecting rod pieces; 8. a lateral stop block; 9. a roadbed; 10. a box girder; 11. a support; 12. a bridge pier; 13. and (4) tunneling.

Detailed Description

The embodiments of the utility model will be described in detail below with reference to the accompanying drawings, but the utility model can be embodied in many different forms, which are defined and covered by the following description.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides an external limit sectional track, including: the railway track assembly is constructed on a supporting foundation and extends along the running direction of a train, track units sequentially distributed along the length direction of the base assembly are paved on the base assembly, each track unit comprises track plate modules 4 sequentially distributed along the length direction, a concave-convex embedded structure is arranged between every two adjacent groups of track plate modules 4, and the concave-convex embedded structures are used for enabling the two adjacent groups of track plate modules 4 to be elastically connected into a whole along the longitudinal direction and limiting and adaptively correcting the connection of the two adjacent groups of track plate modules 4; the external limiting assembled track further comprises lateral stop blocks 8 which are respectively arranged on two sides of the track slab module 4, the lateral stop blocks 8 are connected to the supporting base, and the track slab module 4 on the corresponding side is supported against the top of the lateral stop blocks to limit the track slab module 4 along the transverse direction.

In the external limiting assembled track, track slab modules 4 are sequentially laid on a base assembly at intervals, and two adjacent sets of track slab modules 4 are elastically connected into a whole along the longitudinal direction through a concave-convex embedded structure between the two track slab modules, so that the track slab modules 4 have slippage in a certain range along the longitudinal direction to adapt to the change of temperature and load, the connected track slab modules 4 are limited through connection, and the track slab modules 4 can be subjected to adaptive fine tuning and correction of the laying position or the service period according to the conditions of temperature and load through the elastic connection function of the concave-convex embedded structure, thereby improving the installation and service precision of the track structure and ensuring the smoothness of the track structure to be good; on the other hand, the track structure adopting the lateral stop blocks 8 and the longitudinal connection of the track slabs 402 by using the joint reinforcing steel bars are adopted in the prior art, in the structure, the track slab modules 4 are in concave-convex fit and outer side limit structural mode, the track slab modules 4 are mutually independent, the later-stage assembly and disassembly are rapid and convenient, and the longitudinal connecting reinforcing steel bars do not need to be cut, so that the novel track slab has great advantages compared with the prior structural form, the adjacent track slab modules 4 can be rapidly installed and connected on site through concave-convex embedded structures, the track forming efficiency and quality are improved, the modular and assembled forming mode is realized, and the development requirements of modern tracks are met.

In the external limiting assembled track, the track unit is combined by multiple modules through the track plate modules 4, so that the applicability is strong, the track plate modules 4 are designed in a standardized manner, produced in a factory and installed intelligently, the prefabricated modules are miniaturized and lightened, the production, stacking, transportation and installation are convenient, the track forming efficiency and quality are improved, a modularized and assembled forming mode is realized, the assembling method is simple and convenient, the assembling efficiency is high, and the development requirements of modern tracks are met; on the other hand, compared with the prior art that when the track slab 402 is damaged in the operation process, the whole track slab 402 is replaced or maintained, the damaged track slab module 4 is only needed to be replaced or maintained, so that the rapid repair can be realized, the replacement is simple, the maintenance cost is low, the maintenance required period is short, and the labor intensity of workers is low.

Alternatively, as shown in fig. 2, the track plate module 4 includes track plates 402 sequentially laid on the base assembly at intervals along the length direction of the base assembly, rails 1 extending along the length direction of the base assembly and arranged above the track plates 402 at intervals in parallel, and rail bearing platforms 401 sequentially laid on the upper surface of the track plates 402 at intervals along the length direction of the track plates 402 to support the correspondingly arranged rails 1; the rail bearing platform 401 is connected with a fastener group 2 used for locking and fixing the corresponding steel rail 1 and the rail bearing platform 401. In the alternative, the track plate 402 and the track bearing platform 401 are prefabricated and molded by a factory, so that the processing is simple and the manufacturing precision is high. In the alternative, the number of the fastener groups 2 is two, and the two fastener groups 2 are respectively arranged on two sides of the steel rail 1; every group fastener 2 is including the spiral railway nail and the plain washer that are used for the straining rail, be used for preventing the spiral railway nail installation back pivoted bullet strip, an insulating block that is used for straining rail lower extreme edge, a gauge apron that is used for supporting rail 1 and rail platform 401 inner groovy, the rail lower bolster, the iron base plate, the elastic backing plate under the iron base plate, heighten backing plate and pre-buried sleeve under the iron base plate, spiral railway nail wears to establish the rail lower bolster, the iron base plate, the elastic backing plate under the iron base plate, screw into in the pre-buried sleeve of corresponding rail platform 401 under the iron base plate heightening backing plate, through insulating block and bullet strip straining rail.

Alternatively, as shown in fig. 2, the male-female interlocking structure includes an outward protrusion 403 and an inward groove respectively formed at the connecting end of two adjacent track plates 402, and an elastic filling piece 404 for elastically connecting the two adjacent track plates 402. The outward bulge 403 and the inward groove are arranged oppositely in a matched mode to form a concave-convex matched structure, so that two adjacent track plates 402 can be quickly assembled, connected and limited. In the alternative, the outward protrusions 403 and the inward grooves are prefabricated and formed with the corresponding track slabs 402, so that the track slabs 402 are stable in overall structure and good in rigidity, and the concave-convex matching structure is simple and easy to prepare. The elastic filling piece 404 is installed between the connecting ends of two adjacent track slabs 402 and is deformed to be embedded between the concave-convex matching structures. In this alternative, the elastic filling sheet 404 is made of at least one of polyurethane, epoxy-modified polyurethane, and polyurethane-modified epoxy materials, and is used to elastically connect two adjacent track slabs 402, prevent hard collision between the track slabs 402 connected to each other, and further improve the service life and formation safety of the track slabs 402, and is also used to make the track slabs 402 capable of performing adaptive fine tuning and correction of the paving position and service period according to the temperature and load conditions, and further improve the installation and service precision of the track structure, and the track structure has good smoothness.

In this alternative, in the first embodiment of the concave-convex embedded structure, as shown in fig. 2, a group of concave-convex matching structures is arranged between two adjacent track slabs 402, and the outward protrusions 403 of the concave-convex matching structures are inserted into the inward grooves which are oppositely arranged along the train running direction. The resilient filler piece 404 deforms to snap between the male and female mating structures. When only one group of concave-convex matching structures is arranged between two adjacent track plates 402, the track plates 402 have stable overall structure and good rigidity, and the concave-convex matching structures are simple and easy to prepare; and the outward bulge 403 of the concave-convex matching structure is inserted into the inward groove which is oppositely arranged along the running direction of the train, so that the structural connection stability is good, and disconnection is not easy.

In this alternative, in a second embodiment of the concave-convex embedded structure, not shown, a plurality of concave-convex matching structures are arranged between two adjacent track plates 402, and the plurality of concave-convex matching structures are sequentially arranged along the width direction of the track plates 402. The outward bulges 403 of the multiple groups of concave-convex matching structures are sequentially arranged at the connecting end of the first track plate 402, and the inward grooves of the multiple groups of concave-convex matching structures are sequentially arranged at the connecting end of the adjacent second track plate 402. Or the outward bulges 403 of the multiple groups of concave-convex matching structures are respectively arranged at the connecting ends of the two adjacent track plates 402, and the inward grooves of the multiple groups of concave-convex matching structures are correspondingly arranged at the connecting ends of the two adjacent track plates 402. The resilient filler pieces 404 deform to snap between the sets of male and female mating structures. When a plurality of groups of concave-convex matching structures are arranged between two adjacent track plates 402, the connection stability between the track plates 402 is good, the interaction force at the joint is small, and the service life of the track plates 402 is long.

Optionally, the outward protrusion 403 is one of trapezoidal, triangular, U-shaped, and dovetail shaped. The inward groove is in a shape matched with the outward protrusion 403, the outward protrusion 403 and the inward groove are good in connection stability, and the safety of the structure in service can be improved.

Optionally, a plurality of lateral stoppers 8 are respectively disposed on two sides of the track plate 402, and the lateral stoppers 8 are sequentially arranged at intervals along the length direction of the track plate 402; the lower end of each lateral stop 8 is fixed with the supporting base, and the side wall of the upper end of each lateral stop 8 abuts against the side edge of the correspondingly arranged track plate 402 for limitation, or the upper end of each lateral stop 8 compresses the base plate 6 and abuts against the side edge of the correspondingly arranged track plate 402 for limitation. Through respectively laying a plurality of side direction dogs 8 that set up along length direction interval in proper order in the both sides of track board 402, exert even top through a plurality of side direction dogs 8 to track board 402 and support the effort, and then when making track board 402 receive high temperature and load change, have along fore-and-aft slight shifting, and track board 402 atress is even, stable to can be convenient for track board 402's dismouting and maintenance.

Alternatively, as shown in fig. 1 and 2, the base assembly comprises a base plate 6 for supporting and leveling the steel rail 1, and an intermediate layer 5 laid on the base plate 6 along the length direction of the base plate 6; the base plate 6 is constructed on the supporting foundation and extends along the running direction of the train; the track plates 402 are sequentially laid on the intermediate layer 5 at intervals in the longitudinal direction of the intermediate layer 5.

In the alternative, the base plate 6 can be cast in situ to form millimeter-level precision of the top surface; or the base plate 6 is prefabricated and molded in a factory, and a leveling adjustment layer positioned below the base plate 6 is formed by casting in situ so as to form millimeter-scale precision of the top surface of the base plate 6; or the base plate 6 is replaced by asphalt, high-performance concrete or the existing novel material, and is pressed down by the track plate to form millimeter-level precision of the top surface during cast-in-place.

Before constructing the external limiting assembled track, firstly, prefabricating and forming each component structure of a track slab module 4 in a factory, assembling and connecting each component structure to form the track slab module 4, and then selecting a suitable middle layer 5 according to a specific application scene, an isolation support condition and the like of the external limiting assembled track; when the external limiting assembled track is constructed, firstly, the base plate 6 laid on the supporting foundation is cast on site on the supporting foundation, meanwhile, in the process of casting the base plate 6, the height and the smoothness of the base plate 6 are accurately adjusted in real time according to the height and the smoothness requirements of the external limiting assembled track, then, the middle layer 5 is laid and positioned on the cast base plate 6, the track plate modules 4 are sequentially laid on the middle layer 5 at intervals, two adjacent groups of track plate modules 4 are longitudinally connected into a whole through a concave-convex embedded structure, and finally, the limiting strips are cast on site on the supporting foundation on two sides of the base plate 6, so that the two limiting strips relatively abut against the track plate modules 4 to limit the track plate modules 4 transversely.

Compared with the prior art that the smoothness of the whole top surface of the track structure is controlled by pouring the filling layer between the track plate 402 and the base plate 6 through site construction, in the external limiting and assembling type track, the smoothness of the top surface of the base plate 6 can be accurately controlled in the process of pouring the base plate 6 of the base assembly, and further the smoothness of the whole top surface of the external limiting and assembling type track is controlled; or the base plate 6 is prefabricated and molded in a factory, and a leveling adjustment layer is formed on the supporting base by casting in situ so as to form millimeter-level precision on the top surface of the base plate 6; or the base plate 6 is replaced by asphalt, high-performance concrete or the existing novel material, and is pressed down and molded by the track plate 402 during cast-in-place to form millimeter-level precision of the top surface, so that the external limiting assembled track has the advantages of simple fine adjustment and installation, high installation precision, various forms and simple construction process.

In this alternative, as shown in fig. 3 to 5, the foundation plate 6 is formed by casting in place on the supporting foundation, for example, the foundation plate 6 is formed by casting in place on the roadbed 9 of the railway, as shown in fig. 3, or the foundation plate 6 is formed by casting in place on the box girder 10 of the abutment 11 on the pier 12, as shown in fig. 4, or the foundation plate 6 is formed by casting in place on the tunnel 13, as shown in fig. 5, the foundation plate 6 has a wide range of installation and high adaptability. The base plate 6 is used for supporting the track slab module 4 and is used for accurately controlling the smoothness of the top surface of the track slab module in the pouring forming process, so that the smoothness of the top surface of the external limiting assembled track is accurately controlled. During actual construction, if an imported paver is adopted for construction, the elevation of a base layer is controlled by using machine vision measurement, meanwhile, settlement observation is enhanced, the stability of the roadbed is analyzed and predicted according to data obtained by observation, in order to reduce errors of elevation and thickness control, a section of every 8-10 m can be adopted, and a plurality of point measurements are sequentially arranged on each section at intervals; when the number of elevation measuring points is large in construction, the workload of elevation comparison and thickness calculation is large, an electronic computer can be used for conducting elevation comparison and thickness calculation, the set elevation of the base plate and the measured elevation of each measuring point are made into a data file, the difference value between the elevation of each measuring point and the designed elevation, the thickness of each measuring point, the thickness average value, the mean square deviation and the representative value of each paragraph are calculated through a compiled data processing program, and therefore the next adjustment and control can be guided.

Or, according to the requirement of high-precision construction of the position and shape of the assembly type track base plate, the construction effect, the implementation performance and the accessibility of the base plate precision are comprehensively considered, and the intelligent construction equipment technology of the assembly type track base plate is researched, and the intelligent construction equipment technology can comprise the following technical modules: 1) base plate concrete placement technique: through the comparative research on the technical advantages and feasibility of fixed and movable concrete mixing stations, the construction modes of a concrete raw material supply system and a raw material mixing and pouring system are provided, and the implementation technology and equipment of the base plate concrete pouring process flow are provided; 2) the intelligent space configuration precise control technology comprises the following steps: the method comprises the steps of providing a precise measurement and intelligent control technology suitable for the position shape of a base plate of an assembled track structure by integrating an inertial navigation system, a global positioning navigation system (GPS, Beidou), a vision measurement system, a three-dimensional laser scanning system and the like through comparison and selection; 3) shaping and shaping technology: corresponding construction technology and equipment are provided through the feasibility of a base plate shaping forming technology, a space profile extrusion adjusting technology and a top surface planing, grinding and leveling technology, so that an intelligent base plate shaping and shaping technology with self-adaptability is formed; 4) the intelligent control system comprises: a central control system of the assembly type track bed plate intelligent construction equipment technology is provided by integrating a bed plate concrete pouring technology, an intelligent space configuration precise control technology and a shaping and shaping technology, so that perception identification, precise measurement, intelligent decision and feedback adjustment of the whole process of bed plate construction are realized, and the requirement of precise shaping of the space configuration of the bed plate is met.

Referring to fig. 6, the external limiting assembled track further comprises limiting blocking platforms 7, wherein the limiting blocking platforms 7 are arranged between two adjacent sets of track slab modules 4 and are alternately arranged along the length direction of the base plate 6 along with the concave-convex embedded structures. The limiting blocking platform 7 is used for elastically limiting the track slab module 4 in the longitudinal direction and the transverse direction, and the lower end of the limiting blocking platform 7 is fixed with the base plate 6.

Compared with the prior art, when the base plate is poured, the fixed baffle table and the base plate are integrally poured and formed, the pouring efficiency of the base plate is low, the mechanical operation rate is low due to the fact that the fixed baffle table needs to be poured at the same time, and the labor intensity of pouring personnel is high.

In the external limiting assembled track, the limiting baffle table 7 can limit the adjacent track slab modules 4 along the longitudinal direction and the transverse direction, the limiting function of the fixed baffle table is reserved, the limiting baffle table 7 can elastically limit the adjacent track slab modules 4 along the longitudinal direction and the transverse direction, and the limiting baffle table 7 is elastically connected with the adjacent track slab modules 4, so that the track slab modules 4 can be subjected to adaptive fine adjustment of paving positions according to the temperature and the load conditions through the limiting baffle table 7.

Optionally, as shown in fig. 6, the connecting ends of two adjacent track plates 402 are respectively provided with an inward concave receiving groove, and the receiving grooves at the connecting ends of two adjacent track plates 402 are spliced to form a receiving cavity for receiving the stopper table 7. The upper end of the limit stop table 7 is accommodated in the accommodating cavity and is elastically connected with the two adjacent track plates 402 into a whole, and the lower end of the limit stop table 7 is fixed with the base plate 6.

In this alternative, as shown in fig. 6, the limiting blocking platform 7 includes a connecting rod 704 for supporting the framework and limiting, a damping connecting column 703 with vibration damping and damping performance, a limiting pressing ring 702 for pressing and limiting two adjacent track plates 402 downwards, and an elastic connecting ring 701 for elastic connection. The lower end of the connecting rod piece 704 is fixed with the base plate 6, if the connecting piece is embedded in the base plate 6, the lower end of the connecting rod piece 704 is fixedly connected with the embedded connecting piece, and the upper end of the connecting rod piece 704 penetrates through the middle layer 5 and then extends into the accommodating cavity. The limiting compression ring 702 is positioned in the accommodating cavity and sleeved on the outer circle of the connecting rod piece 704, the damping connecting column 703 is filled and connected between the limiting compression ring 702 and the connecting rod piece 704, and the elastic connecting ring 701 is filled and connected between the limiting compression ring 702 and the accommodating cavity.

In the embodiment of this alternative embodiment, the connecting rod 704 is made of rigid material, such as i-steel, which is easy to obtain, easy to manufacture, and reliable in connection strength. The damping connecting column 703 is formed by pouring and filling self-leveling high-damping concrete in situ, the concrete plays a role in supporting the upper structure of the limit stop table 7 and damping, the self-leveling performance ensures the construction performance and quality of the concrete, and the high-damping performance ensures the damping effect of the concrete. The limiting compression ring 702 is prefabricated and molded by a factory, is made of Ultra High Performance Concrete (UHPC) into a prefabricated part, has the compressive strength of more than 150MPa, has excellent anti-cracking performance and durability, and is used for pressing down the second track plate so as to limit the displacement of the second track plate. The elastic connection ring 701 is formed by casting and filling one of polyurethane, epoxy modified polyurethane and polyurethane modified epoxy materials in situ, plays a role in elastic connection between structural components, and enables the track slab module 4 to be capable of conducting adaptive fine adjustment of a paving position according to temperature and load conditions. During actual construction, the limiting compression ring 702 is firstly pressed in the accommodating cavity, then self-leveling high-damping concrete is adopted to pour a gap between the limiting compression ring 702 and the connecting rod piece 704 to form a damping connecting column 703, and one of polyurethane, epoxy modified polyurethane and polyurethane modified epoxy materials is adopted to pour and fill the gap between the limiting compression ring 702 and the inner ring wall of the accommodating cavity to form the elastic connecting ring 701.

The limiting baffle table 7 is simple in structure and easy to assemble and construct; the limiting blocking platform 7 can limit the adjacent track slab modules 4 longitudinally and transversely, and the limiting function of the existing fixed blocking platform is reserved; the limiting blocking table 7 elastically limits the adjacent track slab modules 4 in the longitudinal direction and the transverse direction, and the limiting blocking table 7 is elastically connected with the adjacent track slab modules 4, so that the track slab modules 4 can be subjected to adaptive fine adjustment of paving positions according to temperature and load conditions through the limiting blocking table 7, and the external limiting assembled track structure is high in precision and good in smoothness.

In the embodiment of this alternative, as shown in fig. 6, the inner peripheral wall of the accommodating cavity is provided with a limiting bayonet. The peripheral wall of the limiting pressure ring 702 is provided with a limiting step which is matched with the limiting bayonet to limit the limiting pressure ring 702, the limiting step on the peripheral wall of the limiting pressure ring 702 is matched with the limiting bayonet in the accommodating cavity to limit the installation of the limiting pressure ring 702, and two adjacent track plates 402 are downwards pressed and positioned through the limiting pressure ring 702.

In a preferred embodiment of this alternative, as shown in fig. 6, the accommodating cavity is located in the center of the track slab 402 in the width direction, and two accommodating grooves that are spliced to form the accommodating cavity have the same structure and are arranged oppositely, and this structural arrangement manner of the accommodating cavity makes the acting force of the limiting blocking table 7 on two adjacent track slabs 402 tend to be balanced, and the second track slab has good load bearing performance, high working accuracy during service, and good structural stability.

Optionally, the limit stop 7 is one of a cylinder, an elliptic cylinder, a polygonal column, and a kidney-shaped column. The shape of the accommodating cavity is matched with that of the limiting blocking platform 7, and the structural shape of the limiting blocking platform 7 can be specifically set according to the specific installation environment of the track, the load bearing condition, the stress condition and the like.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an external spacing pin-connected panel track which characterized in that includes:

the railway track assembly is constructed on a supporting foundation and extends along the running direction of a train, track units sequentially distributed along the length direction of the base assembly are paved on the base assembly, each track unit comprises track plate modules (4) sequentially distributed along the length direction, a concave-convex embedded structure is arranged between every two adjacent groups of track plate modules (4), and the concave-convex embedded structures are used for enabling the two adjacent groups of track plate modules (4) to be elastically connected into a whole along the longitudinal direction and limiting and adaptively correcting the connection of the two adjacent groups of track plate modules (4);

the external limiting assembled track is characterized in that lateral stop blocks (8) are arranged on two sides of the track slab module (4) respectively, the lateral stop blocks (8) are connected to the support base and abut against the corresponding track slab module (4) so as to limit the track slab module (4) in the transverse direction.

2. The external limit built-up track as claimed in claim 1,

the track plate module (4) comprises track plates (402) sequentially laid on the base assembly at intervals along the length direction of the base assembly, steel rails (1) extending along the length direction of the base assembly and parallelly arranged above the track plates (402) at intervals, and track bearing platforms (401) sequentially arranged on the upper surface of the track plates (402) at intervals along the length direction of the track plates (402) to support the correspondingly arranged steel rails (1);

the rail bearing platform (401) is connected with a fastener group (2) used for locking and fixing the corresponding steel rail (1) and the rail bearing platform (401).

3. The external limit built-up track as claimed in claim 2,

the concave-convex embedded structure comprises an outward protrusion (403) and an inward groove which are respectively arranged on the connecting ends of two adjacent track plates (402), and an elastic filling sheet (404) used for elastically connecting the two adjacent track plates (402);

the outward bulge (403) and the inward groove are oppositely matched to form a concave-convex matching structure;

the elastic filling piece (404) is arranged between the connecting ends of two adjacent track plates (402) and is embedded between the concave-convex matching structures in a deformed mode.

4. The external limit built-up track as claimed in claim 3,

a group of concave-convex matching structures are arranged between two adjacent track plates (402), and the outward bulges (403) of the concave-convex matching structures are inserted into the inward grooves which are oppositely arranged along the running direction of the train;

the elastic filling sheet (404) is deformed and clamped between the concave-convex matching structures.

5. The external limit built-up track as claimed in claim 3,

a plurality of groups of concave-convex matching structures are arranged between two adjacent track plates (402), and the plurality of groups of concave-convex matching structures are sequentially arranged along the width direction of the track plates (402);

the outward bulges (403) of the concave-convex matching structures are sequentially arranged at the connecting end of the first track plate (402), and the inward grooves of the concave-convex matching structures are sequentially arranged at the connecting end of the adjacent second track plate (402); or

The outward bulges (403) of the concave-convex matching structures are respectively arranged at the connecting ends of two adjacent track plates (402), and the inward grooves of the concave-convex matching structures are correspondingly arranged at the connecting ends of two adjacent track plates (402);

the elastic filling sheets (404) are deformed and clamped among the groups of concave-convex matching structures.

6. The external limit built-up track as claimed in claim 3,

the outward bulge (403) is in one of a trapezoid shape, a triangular shape, a U shape and a dovetail shape;

the inward groove is in a shape matching the outward protrusion (403).

7. The external limit built-up track as claimed in claim 2,

a plurality of lateral stop blocks (8) are respectively arranged on two sides of the track plate (402), and the lateral stop blocks (8) are sequentially arranged at intervals along the length direction of the track plate (402);

the lower end of each lateral stop block (8) is fixed with the supporting foundation, the side wall of the upper end of each lateral stop block (8) abuts against the correspondingly arranged side edge of the track plate (402) for limiting, or the upper end of each lateral stop block (8) presses the base assembly and abuts against the correspondingly arranged side edge of the track plate (402) for limiting.

8. The external limit built-up track as claimed in claim 2,

the base assembly comprises a base plate (6) which plays a supporting role and is used for leveling the steel rail (1), and an intermediate layer (5) which is laid on the base plate (6) along the length direction of the base plate (6);

the base plate (6) is constructed on the supporting foundation and extends along the running direction of the train;

the track plates (402) are sequentially laid on the intermediate layer (5) at intervals along the length direction of the intermediate layer (5).

9. The external limit built-up track as claimed in claim 8,

the external limiting assembled track further comprises limiting baffle platforms (7), wherein the limiting baffle platforms (7) are arranged between two adjacent sets of track slab modules (4) and are alternately arranged with concave-convex embedded structures along the length direction of the base plate (6);

spacing fender platform (7) are used for right track board module (4) are along vertically and transversely carry out elasticity spacing, just spacing lower extreme that keeps off platform (7) with bed plate (6) are fixed.

10. The external limit built-up track as claimed in claim 8,

the supporting foundation is a railway roadbed (9), or a box girder (10) on a support (11) on a pier (12), or a foundation of a tunnel (13);

the base plate (6) is also used for accurately controlling the height and the smoothness of the external limiting assembled track in the pouring forming process.

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