WO2021051684A1 - 装配式无砟轨道结构及其纵向连接结构以及装配方法 - Google Patents

装配式无砟轨道结构及其纵向连接结构以及装配方法 Download PDF

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Publication number
WO2021051684A1
WO2021051684A1 PCT/CN2019/126062 CN2019126062W WO2021051684A1 WO 2021051684 A1 WO2021051684 A1 WO 2021051684A1 CN 2019126062 W CN2019126062 W CN 2019126062W WO 2021051684 A1 WO2021051684 A1 WO 2021051684A1
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WO
WIPO (PCT)
Prior art keywords
track
slab
sleeper
prefabricated
longitudinal
Prior art date
Application number
PCT/CN2019/126062
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English (en)
French (fr)
Inventor
王森荣
孙立
娄会彬
李秋义
孙嘉良
张�杰
詹彩娟
全顺喜
韦合导
Original Assignee
中铁第四勘察设计院集团有限公司
中国铁建股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中铁第四勘察设计院集团有限公司, 中国铁建股份有限公司 filed Critical 中铁第四勘察设计院集团有限公司
Priority to BR112021020518-7A priority Critical patent/BR112021020518B1/pt
Priority to SG11202110558RA priority patent/SG11202110558RA/en
Publication of WO2021051684A1 publication Critical patent/WO2021051684A1/zh
Priority to IL286845A priority patent/IL286845A/en
Priority to ZA2022/01831A priority patent/ZA202201831B/en

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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
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers

Definitions

  • the invention belongs to the field of ballastless tracks, and more specifically, relates to a longitudinal connection structure of an assembled sleeper slab or track slab ballastless track structure, a ballastless track structure including the longitudinal connection structure, and assembly of the ballastless track structure method.
  • Ballastless track refers to the track structure that uses concrete, asphalt mixture and other integral foundations to replace the loose gravel track bed. Compared with the ballasted track, the ballastless track avoids ballast splashing, has good smoothness, good stability, long service life, good durability, and less maintenance. It is being used more and more.
  • the structure of slab ballastless track mainly involves track slabs, asphalt mortar or self-compacting concrete filling layer, base or supporting layer and other structures, wherein the base or supporting layer adopts concrete structure, and the asphalt mortar or self-compacting concrete filling laid on the base or supporting layer
  • the layer is the structural layer for the adjustment of the ballastless track structure and the supporting force transmission.
  • CRTS I slab ballastless track mainly include CRTS I slab type, CRTS II slab type and CRTS III slab ballastless track.
  • CRTS I slab ballastless track is a unit slab, there is no longitudinal connection between the slab and the slab, and no transverse stop is provided. It is laid on the cast-in-place reinforced concrete base with convex stop, and the position is limited by the convex stop.
  • each track slab after laying and installation is independent.
  • CRTS II slab-type ballastless track slab adopts the longitudinal connection type.
  • the ballastless track slab and the slab are connected longitudinally.
  • the longitudinally connected structure is formed by longitudinally finely tying threaded steel bars and tension locks. It is equipped with horizontal stoppers to overcome CRTS I Part of the defects in the slab-type ballastless track.
  • the longitudinal connection tension lock of the ballastless track plate disclosed in the patent document CN201695285U realizes the longitudinal connection by connecting and locking the steel bars longitudinally extending from the track plate.
  • this connection type is basically equivalent to the way of longitudinal prestressed steel bars.
  • the connection structure is complicated and the construction is cumbersome.
  • the track slab may still be arched, which will affect the track.
  • the longevity of the structure and the smoothness and comfort of train operation have an adverse effect.
  • Patent document CN204370701U discloses a mechanical connection device for reinforcing steel bars in a prefabricated concrete building structure, which upsets the ends of the steel bars to be connected, and inserts a reinforcing steel sleeve at the end, and uses the connecting sleeve to connect Bolts realize the connection of steel bars.
  • this connection method is complicated in structure and cumbersome to construct.
  • the gap reserved between the retaining ring set on the reinforcing steel sleeve and the reinforcing steel bar to be connected will also cause the adjacent fabricated sleeper plates or track plates to be out of the same plane. The accuracy is difficult to control.
  • the embodiment of the present invention provides a longitudinal connection structure of a fabricated sleeper slab type or track slab type ballastless track structure, and a structure including the longitudinal connection structure.
  • the ballast track structure and the assembly method of the ballastless track structure can improve the accuracy of on-site laying construction, facilitate disassembly and installation, reduce construction difficulty, increase on-site construction speed, and have a simple structure to facilitate the positioning of sleeper plates or track plates.
  • the first aspect of the embodiments of the present invention provides a longitudinal connection structure of a fabricated sleeper slab or track slab ballastless track structure, in which two adjacent prefabricated sleeper slabs or prefabricated track slabs are pre-embedded in the longitudinal direction.
  • the steel bars extend out of the end face and are spaced apart from the matching longitudinal steel bar, and the two longitudinal steel bars are longitudinally connected by an extrusion sleeve;
  • the inner diameter of the extrusion sleeve is greater than the outer diameter of the longitudinal steel bars, and the butt ends of the two longitudinal steel bars are respectively inserted into the two ends of the extrusion sleeve. Under the extrusion of the portable extruder, the extrusion sleeve The cylinder is deformed and locked.
  • the part where the butt end of the longitudinal steel bar is inserted into the extrusion sleeve includes at least three threads.
  • circumferential stirrups in the cross-sectional plane are provided on the longitudinal connection structure.
  • the second aspect of the embodiments of the present invention provides a longitudinal connection structure of a fabricated sleeper slab or track slab ballastless track structure, in which two adjacent prefabricated sleeper slabs or prefabricated track slabs are pre-embedded with longitudinal steel bars and extend out of the end surface,
  • the longitudinal steel bars in two adjacent prefabricated sleeper plates or prefabricated track slabs are arranged at intervals, and the longitudinal steel bars arranged at intervals are longitudinally connected by an extrusion sleeve;
  • the inner diameter of the extrusion sleeve is larger than the outer diameter of the longitudinal steel bars, the butting ends of the longitudinal steel bars arranged at intervals are inserted into the extrusion sleeve respectively, and the extrusion sleeve can be compressed and deformed to lock the insertion The steel bar in the squeeze sleeve.
  • the third aspect of this embodiment provides a longitudinal connection structure of a fabricated sleeper slab or track slab ballastless track structure.
  • Two adjacent prefabricated sleeper slabs or prefabricated track slabs are pre-embedded with connecting plates and extend out of the end faces.
  • the adjacent two prefabricated sleeper plates or the connecting plates in the prefabricated track plates are connected to each other.
  • the fourth aspect of this embodiment provides an assembled sleeper slab or track slab ballastless track structure, which includes a prefabricated sleeper slab or a prefabricated track slab, a cast-in-place layer, a track lower foundation, a connection filling part, and any of the above-mentioned assembly types Longitudinal connection structure of sleeper slab or track slab ballastless track structure;
  • a plurality of said prefabricated sleeper panels or prefabricated track panels are arranged longitudinally at intervals, and the transverse ends of each of the prefabricated sleeper panels or prefabricated rail panels are assembled and connected to each other through a longitudinal connection structure respectively in the compartment; in part or all of the compartments ,
  • the reinforced concrete structure is used as the connecting and filling part, so that the connecting and filling part and the prefabricated sleeper plate or the prefabricated track slab form an assembled integral structure, and the prefabricated track slab forms the same structural body of the force-bearing long slab unit.
  • At least part of the spacer area is provided with a connecting filling part at both lateral ends, at least part of the spacer area is provided with a limiting member at the bottom of the track foundation, and at the same time is provided with a space connecting the filling part and the limiting member
  • the longitudinal connecting structure and the limiting member in the area are both embedded in the same connecting and filling part, and the three are integrally formed to achieve simultaneous limiting and connection, so that several prefabricated sleeper panels or prefabricated track panels are assembled to form
  • the rail unit of a predetermined length forms the same force-bearing structure.
  • At least part of the spacer area is provided with a connecting filling part at both lateral ends, at least part of the spacer area is provided with a limiting member at the bottom of the track foundation, and at the same time is provided with a longitudinal connecting structure and a spacer between the limiting member
  • the longitudinal connecting structure and the limiting member in the area are both embedded in the same connecting and filling part, and the three are integrally formed to achieve simultaneous limiting and connection, so that several prefabricated sleeper panels or prefabricated track panels are assembled to form
  • the rail unit of a predetermined length forms the same force-bearing structure.
  • the limiting member is a planted bar on the upper surface of the lower foundation of the track, a reinforced sleeve embedded part, a limiting boss or a reserved steel bar.
  • the limiting steel bar one end of the limiting steel bar is fixedly arranged on the foundation of the lower part of the track, and the other end is vertically arranged between two prefabricated sleeper slabs or track slabs; or
  • the limit boss, the limit boss is arranged in the interval area.
  • a hoop stirrup in the cross-sectional plane is provided on the longitudinal connection structure, and the limiting member is connected with the hoop stirrup.
  • the prefabricated sleeper plate or the prefabricated track plate includes multiple pairs of fastener rail platforms, preferably 2-10 pairs, more preferably 4-6 pairs.
  • a weight reduction hole is provided in the middle of the prefabricated sleeper plate or the prefabricated track plate, and the longitudinal ends are provided with notches.
  • a cover plate is provided on the weight reduction hole and the notch to form a flat evacuation channel.
  • a drainage ditch is arranged along the longitudinal direction of the lower foundation of the track.
  • a first limiting structure is provided on both sides of the long board unit, or a second limiting structure is provided in the board.
  • a plurality of adjacent rail units are provided with plate seams, and part or all of the plate seams are provided with a third limiting structure.
  • the prefabricated sleeper plate or the prefabricated track plate is a non-prestressed plate.
  • the fifth aspect of the present invention provides a method for assembling any one of the above-mentioned assembled sleeper slab type or track slab type ballastless track structure, including the following steps:
  • S1 Forming and pouring the lower foundation of the track, and place each prefabricated sleeper board on the lower foundation of the track in a certain distance along the running direction of the track. A certain interval is reserved between the prefabricated sleeper board and the lower foundation of the track. Perform initial adjustment and positioning;
  • S2 The prefabricated sleeper panels are matched and connected correspondingly through multiple longitudinal connection structures to form one or more long panel units, and then the long panel units are correspondingly set into a ballastless track structure, and each prefabricated sleeper panel is positioned so that The overall level of the rails of the ballastless track structure;
  • S3 Install limit members on the lower foundation of the track in part or all of the compartment.
  • the connecting structure and the limiting component are cured to form the connecting filling part, and the three are integrally formed to achieve simultaneous limiting and connection; filling materials are respectively poured on-site at the lateral ends of the partition area where part or all of the limiting component is not set to wrap and cover Vertical connection structure.
  • the longitudinal connection structure of the fabricated sleeper slab or track slab ballastless track structure of the embodiment of the present invention has a simple connection structure and only includes extrusion sleeves and exposed steel bars.
  • the adjacent sleeper slabs or track slabs are on the same horizontal plane and pass Adjacent exposed steel bars are connected to complete the vertical and horizontal horizontal positioning of the rail row structure, and the vertical mold prefabricated sleeper board or track board.
  • the longitudinal connection structure of the assembled sleeper slab or track slab ballastless track structure of the embodiment of the present invention has a simple manufacturing method.
  • the adjacent sleeper plates or track plates are pre-connected through an extrusion sleeve, which improves the assembly accuracy and reduces The production cost meets the needs of fast and efficient production of prefabricated panels.
  • the site construction only needs to lay the prefabricated sleeper slab or track slab in place, install the extrusion sleeve, and pour the filling material at one time, namely It ensures that the sleeper board or track board is on the same horizontal surface, and the construction speed on site is fast.
  • the fabricated sleeper slab type or track slab ballastless track structure of the embodiment of the present invention is provided with a plurality of prefabricated sleeper plates or prefabricated track plates that can be assembled and connected correspondingly, so that they are arranged at intervals along the track direction on the lower foundation of the track , And correspondingly set a longitudinal connection structure between two adjacent prefabricated sleeper slabs or prefabricated track slabs for corresponding matching and connection, and pour concrete in the connection area, so that the prefabricated sleeper slabs or prefabricated track slabs form an assembled integral structure, thereby realizing each
  • the effective connection of prefabricated sleeper panels or prefabricated track panels forms a long-slab unit structure with the same force, which ensures the integrity of the connection and assembly of prefabricated sleeper panels or prefabricated track panels, and improves the assembly accuracy and reliability of the ballastless track structure ;
  • the prefabricated sleeper slab or track slab ballastless track structure of the embodiment of the present invention is provided by correspondingly setting limit members in the interval between the prefabricated sleeper plates or the prefabricated track plates, and the longitudinal connection structure and the limit member Corresponding to the cast-in-place concrete, the limiting member and the longitudinal connecting structure are simultaneously covered in the concrete structure, and then each prefabricated sleeper slab or prefabricated track slab and the track lower foundation form an integral structure, thereby effectively realizing the prefabricated sleeper slab or precast track
  • the board is connected and limited at the same time, avoiding the direct hard connection in the existing sleeper board connection process, ensuring the accuracy and reliability of the sleeper board connection, shortening the time for the connection setting of the sleeper board, and improving the setting of the ballastless track structure. Efficiency, reducing the cost of setting up the ballastless track structure;
  • the longitudinal connection structure and the limiting member can be respectively set by means of pre-embedded planting bars, the setting method is simple, the connection is simple, and the ballastless track can be upgraded
  • the installation efficiency of the track structure shortens the construction period.
  • the longitudinal connection structure and the limit components are simultaneously covered by cast-in-place concrete to form an overall connection-limit structure, which effectively improves the stability of the structure and ensures the connection and limit. Improve the stability of the ballastless track structure;
  • the fabricated sleeper slab type or track slab ballastless track structure of the embodiment of the present invention by opening a weight reduction hole in the middle of the sleeper plate, and/or correspondingly opening notches on both sides of the sleeper plate, and then forming a frame plate, Effectively reduce the weight of the sleeper board, reduce the difficulty in transportation and laying of the sleeper board, save materials, and it can correspond to the drainage ditch on the lower foundation of the track, which is convenient for cleaning the debris in the drainage ditch, and realizes the quick inspection and maintenance of the drainage function of the drainage ditch. , To improve the application convenience of the ballastless track structure;
  • the fabricated sleeper slab or track slab ballastless track structure of the embodiment of the present invention is formed by correspondingly connecting a plurality of prefabricated sleeper panels in series along the track direction.
  • the surface of each sleeper panel is respectively horizontal and on the prefabricated sleeper panel.
  • ballastless track structure Level After opening the weight-reducing holes and notches, corresponding to the weight-reducing holes and notches are respectively provided with cover plates, so that the upper end surfaces of the weight-reducing holes and notches can be covered, ensuring the area between the two rails of the ballastless track structure Level, convenient for the evacuation of people in emergency situations, avoiding the inconvenience of people walking caused by the convex end face structure of the existing ballastless track unit plate due to the connection needs, making the ballastless track structure more effectively suitable for occasions such as subways Application to meet the safety evacuation needs of ballastless tracks;
  • the assembled sleeper slab or track slab ballastless track structure of the embodiment of the present invention is formed by correspondingly assembling a plurality of prefabricated sleeper plates or prefabricated track slabs.
  • the overall structure is an assembled structure.
  • the prefabricated sleeper slab or track slab ballastless track structure of the embodiment of the present invention is equipped with a prefabricated sleeper slab or prefabricated track slab of a certain length and assembled with a long slab unit.
  • a prefabricated sleeper slab or prefabricated track slab of a certain length is equipped with a prefabricated sleeper slab or prefabricated track slab of a certain length and assembled with a long slab unit.
  • different The length of the sleeper board or track board and by adopting the prefabricated sleeper board or the precast track board as the short board, the curve adaptability of the prefabricated sleeper board or the precast track board can be improved, and the types and quantity of the non-standard board and the curved board can be reduced , Reduce the prefabrication cost of sleeper plates or track slabs, improve the economy of the ballastless track structure, and facilitate the fine adjustment of later laying;
  • the fabricated sleeper slab or track slab ballastless track structure of the embodiment of the present invention is configured by assembling a plurality of prefabricated sleeper panels or prefabricated rail slabs into long slab units, and correspondingly, a limit structure is provided between adjacent long slab units , Or set a limit structure on both sides of the long board unit, or set a limit structure on part or all of the prefabricated sleeper plates or prefabricated track boards in the long board unit, so that each long board unit can achieve precise limit , To ensure the stability and accuracy of the long slab unit setting, and improve the accuracy of the application of the ballastless track structure;
  • the assembled sleeper slab type or track slab ballastless track structure of the embodiment of the present invention has a simple structure and simple assembly method, can be quickly assembled to obtain a ballastless track structure, and the connection and limit accuracy of the sleeper plate or the track plate is high. High reliability, high efficiency of track assembly, short installation period, effectively reducing the installation cost of ballastless track structure, reducing material waste, and improving the service life of the track, which has very important promotion and application value.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of an assembled sleeper slab or track slab ballastless track structure in an embodiment of the present invention
  • FIG. 2 is an exploded view of the overall structure of the assembled sleeper slab or track slab ballastless track structure in the embodiment of the present invention
  • Figure 3 is a transverse cross-sectional view of an assembled sleeper slab or track slab ballastless track structure in an embodiment of the present invention
  • FIG. 4 is a longitudinal cross-sectional view of the longitudinal connection structure of the assembled sleeper slab type or track slab type ballastless track structure in the embodiment of the present invention
  • FIG. 5 is a plan view of the longitudinal connection structure of the assembled sleeper slab type or track slab type ballastless track structure in the embodiment of the present invention.
  • FIG. 6 is a partial schematic diagram of the longitudinal connection structure of the assembled sleeper slab type or track slab type ballastless track structure in the embodiment of the present invention.
  • Prefabricated sleeper plate 101. Plate body, 102. Longitudinal steel bar, 103. Weight reduction hole, 104. Extrusion sleeve, 1041. Extrusion Rib, 2. Cast-in-place layer, 3. Track lower foundation, 301. Drainage ditch; 4. Limiting member, 401. Limiting steel bar, 402. Filling part; 5. Rail.
  • FIG. 1 The overall structure diagram of the assembled sleeper slab type or track slab ballastless track structure in an embodiment of the present invention is shown in Figures 1 and 2, where the ballastless track structure passes through prefabricated sleeper slabs or prefabricated rails arranged at intervals along the longitudinal direction.
  • the plates are correspondingly connected and assembled.
  • the prefabricated sleeper plate 1 is taken as an example for illustration.
  • the prefabricated track plates can also be correspondingly connected and assembled through the arrangement in the following embodiments to form a ballastless track structure .
  • the ballastless track structure includes prefabricated sleeper plates 1, cast-in-place layer 2, and track lower foundation 3 that are sequentially matched and arranged; the track lower foundation 3 is arranged along the track direction.
  • the track lower foundation 3 can be The concrete base or foundation backfill layer formed by pouring reinforced concrete is used to carry the prefabricated sleeper slab 1 and the rails 5 arranged on the sleeper slab 1, and the train running on the rails 5; in an embodiment of the present invention, the track lower foundation
  • the width and thickness of 3 are not specifically limited, they can be selected according to actual needs, so I will not repeat them here; in an embodiment of the present invention, as shown in FIG. 3, a drainage ditch is correspondingly provided on the track lower foundation 3 301.
  • the drainage ditch 301 in an embodiment of the present invention may be arranged along the track direction, and in an embodiment of the present invention, the drainage ditch 301 may be arranged in the middle of the track lower foundation 3; Of course, in an embodiment of the present invention, the drainage ditches 301 can also be two arranged side by side on both sides of the track lower foundation 3, or one on either side of the track lower foundation 3, which can be selected according to actual needs. Do repeats.
  • the cast-in-place layer 2 is arranged between the prefabricated sleeper plate 1 and the track lower foundation 3, which can be placed on the track lower foundation 3 through the prefabricated sleeper plate 1 and after corresponding connection, rough adjustment, and fine adjustment It is obtained by pouring so that the prefabricated sleeper plate 1 and the track lower foundation 3 are closely attached to bear the vertical force transmitted on the prefabricated sleeper plate 1, and play the role of buffering and uniform force.
  • the cast-in-place layer 2 can be set sufficiently Realize the adjustment of the prefabricated sleeper plate 1 during the construction process, ensure the levelness or flatness of the track at each position in the ballastless track, and ensure the smoothness of the track operation; in an embodiment of the present invention, the prefabricated sleeper plate 1 is correspondingly placed on the lower part of the track After the foundation 3 is installed, the distance between each prefabricated sleeper plate 1 and the track lower foundation 3 is adjusted so that the steel rails 5 provided on each prefabricated sleeper plate 1 can be connected correspondingly, and the corresponding splicing accuracy of the track is ensured; in an embodiment of the present invention After the prefabricated sleeper slab 1 is installed on the lower foundation 3 of the track, there is a certain distance between the two, and then the prefabricated sleeper slab 1 is roughly adjusted and finely adjusted, and the corresponding thickness of concrete is poured in the space between the two , Thus forming the cast-in-situ layer 2 of the ballastless track structure.
  • the lower surface of the prefabricated sleeper plate 1 and/or the track lower foundation has been "textured", that is, the roughness of the lower surface of the prefabricated sleeper plate 1 and/or the upper surface of the track lower foundation 3 is increased, and the flatness is reduced, so that the cast-in-place layer 2 and the prefabricated sleeper plate
  • the static friction between 1 and the track lower foundation 3 is increased, and the connection stability between the cast-in-place layer 2 and the precast sleeper plate 1 and the track lower foundation 3 is improved, so that the precast sleeper plate 1 and the track lower foundation 3 form the same through the cast-in-place layer 2.
  • the force-bearing body of the track structure improves the force stability of the ballastless track structure.
  • the prefabricated sleeper plate 1 according to an embodiment of the present invention is shown in Figures 1 to 2, which has a plate-like structure, and the prefabricated sleeper plate 1 of an embodiment of the present invention is a non-prestressed plate. Of course, it can also be set as a pre-stressed plate.
  • the form of the stress plate can be realized by using relevant technical means in the prior art according to actual needs; in an embodiment of the present invention, a plurality of prefabricated sleeper plates 1 can be sequentially arranged on the lower foundation 3 of the track at intervals along the track direction and correspond to Connected in series to form an integral ballastless track structure, two adjacent prefabricated sleeper plates 1 are aligned and connected by side faces; in one embodiment of the present invention, the top of the prefabricated sleeper plate 1 is provided with multiple pairs of correspondingly installed rails at intervals along the track direction 5 fastener rail platforms. In an embodiment of the present invention, the number of fastener rail platforms arranged at intervals on the prefabricated sleeper plate 1 is 4 pairs.
  • the number of fastener rail platforms on the prefabricated sleeper plate 1 can be set according to the prefabricated Set the length of the sleeper plate 1 or the interval between two adjacent fastener rail platforms, such as 2 pairs, 3 pairs, 5 pairs, 6 pairs, 7 pairs, 8 pairs, 9 pairs, 10 pairs, etc. In an embodiment of the invention, it can be specifically set to 4-6 pairs.
  • a longitudinal connection structure is provided between two adjacent prefabricated sleeper plates 1.
  • the two prefabricated sleeper plates 1 can correspond to the longitudinal steel bars 102 respectively provided on the connected side surfaces.
  • the length direction of the prefabricated sleeper plate 1 is set, that is, along the track direction of the ballastless track structure, and the longitudinal steel bars 102 are arranged at intervals on the side of the prefabricated sleeper plate 1 in an embodiment of the present invention, and then two prefabricated sleeper plates After 1 alignment, the longitudinal bars 102 on the opposite sides of the two prefabricated sleeper plates 1 can be aligned respectively, and then correspondingly connected.
  • two adjacent prefabricated sleeper plates 1 are pre-embedded with longitudinal steel bars 102 and extend out of the end faces, and are arranged at intervals from the matching longitudinal steel bars 102.
  • the two longitudinal steel bars 102 are longitudinally connected by an extrusion sleeve 104; the inner diameter of the extrusion sleeve 104 is greater than the outer diameter of the longitudinal steel bars 102, and the butt ends of the two longitudinal steel bars 102 are inserted into the extrusion sleeve 104 respectively.
  • the extrusion sleeve 104 is deformed and locked, and a plurality of extrusion ribs 1041 are formed on the outside.
  • the part where the butt end of the longitudinal steel bar 102 is inserted into the extrusion sleeve 104 includes at least three threads to ensure the locking force.
  • connection of the longitudinal steel bars 102 is not limited to the above form. It can also be achieved by arranging lap pieces corresponding to the longitudinal steel bars 102, and welding two longitudinal bars 102 at both ends of the lap pieces to realize the longitudinal connection of the two prefabricated sleeper plates 1 ;
  • the longitudinal connection structure is not limited to the above-mentioned form of longitudinal steel bars 102, which can be selected as other forms according to actual needs.
  • connecting plates are provided on the sides of the two prefabricated sleeper plates 1 respectively.
  • the prefabricated sleeper plate 1 is provided with a plurality of longitudinal steel bars 102 on the side for connection, which are separately arranged at the two ends of the above-mentioned side, and in an embodiment of the present invention, the longitudinal bars 102 are respectively arranged on the two ends of the above-mentioned side
  • the number of steel bars 102 is 4, that is, the number of longitudinal steel bars 102 provided on the connecting end surface of the prefabricated sleeper plate 1 is 8, and then the two prefabricated sleeper plates 1 can be connected by 8 sleeves after alignment.
  • the sleeve correspondingly constitutes a longitudinal connection structure to realize the longitudinal connection of the prefabricated sleeper plates 1, and then form an integral unit along the track direction; of course, the longitudinal steel bars 102 between the two prefabricated sleeper plates 1 can be all sleeved
  • the barrel is correspondingly matched and connected, or partly connected through a sleeve.
  • a plurality of prefabricated sleeper plates 1 can be correspondingly connected in the longitudinal direction into a long plate unit of a certain length, and then the ballastless track structure in an embodiment of the present invention can pass through one Or a plurality of long slab units are correspondingly combined; the long slab unit in an embodiment of the present invention can form an integral force-bearing structure through the cast-in-place layer 2 and the track lower foundation 3, that is, a track unit, and then the ballastless track structure can be formed along the longitudinal direction
  • the set multiple track units are assembled correspondingly, and each track unit is used as an overall force structure to complete the force of the ballastless track structure.
  • a plate seam is provided between each long board unit, and a limit structure is correspondingly arranged in the board seam, and the limit structure correspondingly realizes the limit of the long board unit.
  • the limit structure may be convex.
  • the limit structure of the table, the cylindrical part, etc. can be set selectively, and can also be set in each plate seam, which can be selected according to the actual situation, and will not be repeated here.
  • the limit of the long board unit is not limited to the above-mentioned limit structure, it can be set in other forms according to actual needs.
  • the limit structure is provided on both sides of the long board unit, by The limit structure on the side of the long slab unit corresponds to the lower foundation of the track to realize the limit of the long slab unit.
  • the limit structure can be vertically arranged on the side of the prefabricated sleeper plate 1 to anchor steel bars or connect
  • a through hole structure can be vertically opened on the board surface of part or all of the prefabricated sleeper board 1 in the long board unit or a sleeve connecting the two board surfaces can be provided to make the long board
  • the limit of the long plate unit can be realized by planting the reinforcement in the above-mentioned through hole or sleeve or setting the limit steel nail.
  • the reinforcing steel or the limit steel nail of the planting reinforcement can be matched into the lower foundation of the track.
  • the limit position of each long board unit can also be set in other forms according to actual needs, which is relatively easy to achieve by using related technical means in the prior art, so it will not be repeated here.
  • two adjacent prefabricated sleeper panels 1 are correspondingly connected by a longitudinal connection structure, and then a connection filling part can be provided corresponding to the longitudinal connection structure.
  • the filling part is formed between the two prefabricated sleeper panels 1
  • the spacers are obtained by pouring reinforced concrete or organic materials in-situ; of course, in an embodiment of the present invention, connecting filling parts can be provided correspondingly between the lateral ends of all spacers, or only part of the spacers can correspond between the lateral ends of the spacers.
  • connection filling part which can be set according to the actual situation; in one embodiment of the present invention, before the reinforced concrete is cast on the longitudinal connection structure, the longitudinal connection structure can be provided with circumferential stirrups in the cross-sectional plane to connect the two The multiple longitudinal connection structures and the connection filling parts in the plate compartment are connected to form an integral structure.
  • the number of circumferential stirrups can be one or multiple along the longitudinal interval, and the circumferential stirrups and the longitudinal connection structure
  • the connection form is not specifically limited.
  • the longitudinal connection structure of two adjacent prefabricated sleeper plates is correspondingly connected, and the ring
  • the above-mentioned integral frame structure corresponds to the cast-in-situ reinforced concrete, so that the setting stability of the connection filling part between the two prefabricated sleeper plates 1 is higher, and the multiple prefabricated sleepers
  • the slab 1 can correspondingly form a stable long slab unit, that is, form the same force-bearing structure, so that each of the prefabricated sleeper plates 1 in the long slab unit is not only subjected to a single force, but the whole is stressed, thereby ensuring the long slab unit and even the ballastless track
  • the mechanical stability of the structure is not specifically limited here; in an embodiment of the present invention, the longitudinal connection structure of two adjacent prefabricated sleeper plates is correspondingly connected, and the ring
  • the above-mentioned integral frame structure corresponds to the cast-in-situ reinforced concrete, so that the setting stability of the connection filling part between the two prefabricated sleeper plates 1 is higher, and the multiple pre
  • the spacing area between two adjacent prefabricated sleeper plates 1 is correspondingly provided with a limiting member.
  • the limiting member is a limiting steel bar vertically arranged on the lower foundation of the track. 401, that is, one end of the limiting steel bar 401 is fixedly arranged on the track lower foundation 3, and the other end is vertically arranged between the two prefabricated sleeper plates 1; of course, the connection method between the limiting steel bar 401 and the track lower foundation 3 can be determined according to Actually need to choose, such as planting steel bars on site, or fixedly set on the lower foundation 3 of the track through pre-embedded form; and the limit member can also be set in other forms, such as pre-embedded steel sleeves in the lower foundation 3 of the track In an embodiment of the present invention, the number of limit members can be one or more, which can be set according to the setting form of the limit member or actual needs.
  • the interval between each prefabricated sleeper plate 1 can be provided with limit members, or a limit member can be arranged in part of the interval. This can be set according to actual needs, and it will not be done here. Go into details.
  • the spacing member between the two prefabricated sleeper plates 1 is provided with a positioning member, it is installed after the longitudinal connection structure is correspondingly connected.
  • the corresponding longitudinal connection structure is provided with a hoop Reinforcement
  • the limiting member and the circumferential stirrup can be matched and connected correspondingly, so that the limiting member and the longitudinal connection structure become an integral structure, and then reinforced concrete is poured on the above integral structure, and the filling part 402 shown in the figure is formed
  • the filling part 402 simultaneously covers the limiting member and the longitudinal connecting structure to form an integral structure, thereby realizing simultaneous limiting and connection, so that the longitudinal connecting structure, the limiting member and the connecting filling part are integrally formed, so that each prefabricated sleeper board 1 Form an overall force-bearing structure.
  • the prefabricated sleeper plate 1 is provided with weight-reducing holes 103 penetrating both ends of the plate body 101 in the middle, so that the prefabricated sleeper plate 1 becomes a frame plate structure, and the opening position of the weight-reducing holes 103 is the same as that of the lower part of the track
  • the alignment of the drainage ditch 301 in the middle of the foundation 3 not only reduces the weight of the prefabricated sleeper plate 1, saves materials, and is convenient for transportation and installation, but also greatly facilitates the cleaning of the drainage ditch 301 and reduces the drainage ditch 301 during the application of the ballastless track structure.
  • a cover plate is provided corresponding to the weight-reducing hole 103, which can be correspondingly covered on the weight-reducing hole 103 to form a flat evacuation channel, which is convenient for the ballastless track structure
  • a gap is correspondingly provided on the side surface of the plate body 101 for matching connection.
  • the gap is semi-annular, so that the weight of the prefabricated sleeper plate 1 is reduced, and the two After the prefabricated sleeper plate 1 is aligned on the side and matched and connected, the two notches on the two opposite sides can be aligned separately to form a ring-shaped notch, as shown in Fig. 1, and then corresponding to the combined notches are provided with corresponding cover plates Therefore, the area between the two steel rails 5 on the ballastless track structure is horizontal, which is convenient for walking, and also reduces the garbage on the sleeper surface from falling into the drain 301.
  • the prefabricated sleeper plate 1 is provided with semi-annular gaps in the middle of the two end surfaces for matching and connection.
  • the gaps are arranged so that the two ends of each end surface form a convex structure, and each longitudinal steel bar 102 can correspond to It is arranged on the end faces of the two protruding structures, that is, when the two prefabricated sleeper plates 1 are connected correspondingly, the protruding structures at the ends of the two prefabricated sleeper plates 1 can be aligned correspondingly, and then the corresponding longitudinal steel bars 102 on the protruding structure can be respectively aligned. Alignment, so as to realize the corresponding connection of the prefabricated sleeper plate 1 with the longitudinal steel bars 102.
  • connection between two adjacent prefabricated sleeper plates 1 is realized by pre-embedding longitudinal steel bars 1 on the end faces of each prefabricated sleeper plate 1.
  • This is a method in the embodiment of the present invention, but not The only arrangement is, as in another embodiment, by correspondingly arranging sleeves on the end faces of each prefabricated sleeper plate 1, so that after the two prefabricated sleeper plates 1 are correspondingly arranged on the lower foundation 3 of the track, the two prefabricated sleeper plates 1 are opposed to each other.
  • the sleeves on the side are aligned respectively, and then longitudinal steel bars are correspondingly arranged in each set of aligned sleeves, so that one end of the longitudinal steel bars is correspondingly connected to the sleeve on the side of one prefabricated sleeper plate 1, and the other end is connected to the other
  • the prefabricated sleeper plates 1 are mounted on corresponding sleeves on the side, so that the two prefabricated sleeper plates 1 can be connected correspondingly through the corresponding matching of multiple sets of sleeves and longitudinal steel bars, and each set of sleeves is correspondingly connected with longitudinal steel bars.
  • the longitudinal steel bars or sleeves on the end face of the prefabricated sleeper plate 1 can be pre-embedded or arranged in other forms.
  • a connecting plate is provided on the end face of the prefabricated sleeper plate 1, and then one end of the longitudinal steel bar or sleeve Correspondingly welded on the connecting plate to achieve positioning.
  • the method for assembling the assembled sleeper slab or track slab ballastless track structure described above can be carried out through the following steps.
  • the prefabricated sleeper slab 1 is taken as an example, and the prefabricated track slab The assembly can be carried out using the same steps, the steps are as follows:
  • S1 In a tunnel (such as a subway tunnel), the lower foundation 3 of the track is formed and poured, and then the prefabricated sleeper slabs 1 manufactured in the factory are transported to the construction site, and the prefabricated sleeper slabs 1 are placed at a certain distance along the running direction of the track. On the lower foundation 3 of the track, a certain interval is reserved between the prefabricated sleeper plate 1 and the lower foundation 3 of the track, and the initial adjustment and positioning of each prefabricated sleeper plate 1 are carried out;
  • S2 Connect each of the prefabricated sleeper plates 1 through multiple longitudinal connection structures (such as the longitudinal steel bars 102 and the extrusion sleeve 104 described in an embodiment of the present invention) to form one or more long plate units, and then Correspondingly set each long slab unit into a ballastless track structure, and then finely adjust and position each prefabricated sleeper plate 1 to make the steel rail 5 of the ballastless track structure level as a whole to ensure the flatness or levelness of the steel rail 5;
  • longitudinal connection structures such as the longitudinal steel bars 102 and the extrusion sleeve 104 described in an embodiment of the present invention
  • a limit member (such as the limit steel bar 401 described in the embodiment of an embodiment of the present invention) is arranged on the lower foundation of the track in part or all of the compartment, and the longitudinal connection structure and the interval of the limit member are arranged at the same time
  • fills are respectively poured on the lateral ends of the spacer area (in an embodiment of the present invention, the fillers can be concrete or organic damping material), wrap and cover the longitudinal connection structure and the limiting member, and form the connection filling part after solidification ,
  • the three parts are integrally formed to achieve simultaneous limit and connection; fills are respectively poured on-site at the horizontal ends of the partition area where part or all of the limit components are not set to wrap and cover the longitudinal connection structure; the integration and connection are completed at the same time through one-time in-situ casting
  • the horizontal and vertical positions are restricted, so that a plurality of prefabricated sleeper plates are assembled to form a long plate unit of a predetermined length and form a unified force-bearing structure.
  • the structure of the ballastless track is simple, and the assembly method is simple.
  • the ballastless track structure in the form of multiple sleeper plates assembling each other, thus, the ballastless track structure can be quickly assembled, which is effectively suitable for the application environment of the subway.
  • the sleeper plate in the embodiment of the present invention completes the assembly of the ballastless track structure through prefabrication and then assembly.
  • the assembly form is simple, the assembly efficiency is high, and the assembly efficiency of the ballastless track structure can be greatly improved, and the assembly cycle can be shortened.
  • the two sleeper plates can be correspondingly connected through the longitudinal connection structure, which effectively realizes the connection of the sleeper plates; by correspondingly at the position where the two sleeper plates are connected to each other
  • the limit component is set to limit the longitudinal position of the sleeper plate, which effectively guarantees the stability of the track operation and ensures the running accuracy of the track.
  • the limit component and the longitudinal connection structure can be integrally formed to realize the sleeper at the same time
  • the limit and connection of the board greatly shorten the setting period of the sleeper board and improve the installation efficiency of the ballastless track; at the same time, by opening a weight reduction hole in the middle of the sleeper board, the weight of the sleeper board can be effectively reduced, and the transportation of the sleeper board can be improved. Performance, saving materials, and reducing the production cost of sleeper panels, which have very important promotion and application value.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，及包含该纵向连接结构的无砟轨道结构，以及无砟轨道结构的装配方法，预埋的纵向钢筋（102）通过挤压套筒（104）进行纵向连接，两个纵向钢筋（102）的对接端分别插入所述挤压套筒（104）的两端内，在便携式挤压机的挤压下，所述挤压套筒（104）变形锁紧。所述纵向连接结构可提高现场铺设施工时的精度，方便拆卸和安装，降低施工难度，提高现场施工速度，且结构简单，方便轨枕板或轨道板的定位。

Description

装配式无砟轨道结构及其纵向连接结构以及装配方法
相关申请的交叉引用
本申请基于申请号为201910884767.8、申请日为2019年09月19日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明属于无砟轨道领域，更具体地，涉及一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，及包含该纵向连接结构的无砟轨道结构，以及无砟轨道结构的装配方法。
背景技术
无砟轨道是指采用混凝土、沥青混合料等整体基础取代散粒碎石道床的轨道结构。无砟轨道与有砟轨道相比，避免了道砟飞溅，平顺性好，稳定性好，使用寿命长，耐久性好，维修工作少，正在越来越多地被应用。板式无砟轨道构造主要涉及轨道板、沥青砂浆或自密实混凝土充填层、底座或支承层等结构，其中底座或支承层采用混凝土结构，铺设于底座或支承层上的沥青砂浆或自密实混凝土充填层是无砟轨道结构调整和支承传力的结构层。
目前，我国板式无砟轨道型式主要有CRTS Ⅰ型板式、CRTS Ⅱ型板式和CRTS Ⅲ型板式无砟轨道。CRTS Ⅰ型板式无砟轨道为单元板，板与板之间不纵连，不设横向挡块，铺设在现浇的具有凸型挡台的钢筋混凝土底座上，由凸型挡台限位。单元板式无砟轨道结构中，铺设安装后的每块轨道板之间是独立的，其不足之处是，在线路运行一段时间后，轨道板与 沥青砂浆填充层会发生剥离，轨道板的纵向端部易产生翘曲，这无疑会给列车运行的平稳性、舒适性和轨道结构的寿命造成不利的影响。尽管目前存在相应的改进连接方式的方案，但是总体来看依然难以满足板体之间的受力变形以及制备工艺复杂问题，而且无法克服目前无砟轨道异形板过多导致整个无砟轨道的装配、维修难等问题。
CRTS Ⅱ型板式无砟轨道板其采用纵连式，无砟轨道板与板之间纵连，通过纵向精扎螺纹钢筋和张拉锁件形成纵连结构，设有横向挡块，可以克服CRTS Ⅰ型板式无砟轨道存在的部分缺陷。例如专利文献CN201695285U中公开的无砟轨道板纵向连接张拉锁，其通过从轨道板纵向伸出的钢筋进行连接锁紧实现纵向连接。但是这种连接型式基本等同于纵向预应力钢筋的方式，连接构造复杂，施工起来较为烦琐，而且此刚性连接在温度力过大的情况下，轨道板仍存在上拱的可能，这将对轨道结构的寿命和列车运行的平稳性、舒适性造成不利的影响。
专利文献CN204370701U中公开的一种用于装配式混凝土建筑结构中的钢筋机械连接装置，其通过将待连接钢筋端部镦粗加工，并在端部穿设钢筋套筒，利用连接套筒与连接螺栓实现钢筋的连接。但是这种连接方式构造复杂，施工起来较为繁琐，钢筋套筒上设置的卡环与待连接钢筋之间预留的间隙也会导致相邻的装配式轨枕板或轨道板不在同一平面，施工时精度难以控制。
发明内容
针对现有技术的以上缺陷或改进需求中的一种或者多种，本发明实施例提供了一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，及包含该纵向连接结构的无砟轨道结构，以及无砟轨道结构的装配方法，可提高现场铺设施工时的精度，方便拆卸和安装，降低施工难度，提高现场施工速度，且结构简单，方便轨枕板或轨道板的定位。
为了实现上述目的，本发明实施例的第一方面，提供一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有纵向钢筋并伸出端面，与匹配的另一纵向钢筋间隔设置，两个纵向钢筋通过挤压套筒进行纵向连接；
所述挤压套筒的内径大于纵向钢筋的外径，两个纵向钢筋的对接端分别插入所述挤压套筒的两端内，在便携式挤压机的挤压下，所述挤压套筒变形锁紧。
本发明一实施例中，所述纵向钢筋的对接端插入所述挤压套筒的部分至少包括三圈螺纹。
本发明一实施例中，在纵向连接结构上设置横截面平面内的环向箍筋。
本发明实施例的第二方面提供一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有纵向钢筋并伸出端面，相邻两个预制轨枕板或预制轨道板中的纵向钢筋间隔设置，间隔设置的纵向钢筋通过挤压套筒进行纵向连接；
所述挤压套筒的内径大于所述纵向钢筋的外径，间隔设置的纵向钢筋的对接端分别插入所述挤压套筒内，所述挤压套筒能够被挤压变形以锁紧插入所述挤压套筒内的钢筋。
本实施例的第三方面提供一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有连接板并伸出端面，相邻两个所述预制轨枕板或所述预制轨道板中的连接板相互连接。
本实施例的第四方面提供一种装配式轨枕板式或轨道板式无砟轨道结构，包括预制轨枕板或预制轨道板、现浇层、轨道下部基础、连接填充部分以及上述任一种的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构；
其中，若干块所述预制轨枕板或预制轨道板纵向间隔排列设置，在间隔区各所述预制轨枕板或预制轨道板的横向两端分别通过纵向连接结构彼此装配连接；在部分或全部间隔区，采用钢筋混凝土结构作为连接填充部分，使得连接填充部分与预制轨枕板或预制轨道板形成装配整体式结构，预制轨道板形成同一受力长板单元结构体。
本发明一实施例中，至少部分间隔区的横向两端分别设置有连接填充部分，至少部分间隔区的所述轨道下部基础设置有限位构件，且同时设置有连接填充部分和限位构件的间隔区中所述纵向连接结构和所述限位构件均埋设于同一个所述连接填充部分中，三者一体成型实现同时限位和连接，从而若干块所述预制轨枕板或预制轨道板装配形成预定长度的轨道单元并形成同一的受力结构体。
本发明一实施例中，至少部分间隔区的横向两端分别设置有连接填充部分，至少部分间隔区的所述轨道下部基础设置有限位构件，且同时设置有纵向连接结构和限位构件的间隔区中所述纵向连接结构和所述限位构件均埋设于同一个所述连接填充部分中，三者一体成型实现同时限位和连接，从而若干块所述预制轨枕板或预制轨道板装配形成预定长度的轨道单元并形成同一的受力结构体。
本发明一实施例中，所述限位构件为所述轨道下部基础上表面的植筋、钢筋套筒预埋件、限位凸台或预留钢筋。
本发明一实施例中，限位钢筋，所述限位钢筋的一端固定设置在轨道下部基础上，另一端竖向设置在两预制轨枕板或轨道板之间；或
钢筋套筒预埋件，所述钢筋套筒预埋件设置在轨道下部基础上；或
限位凸台，所述限位凸台设置在所述间隔区内。
本发明一实施例中，在纵向连接结构上设置横截面平面内的环向箍筋，所述限位构件与所述环向箍筋连接。
本发明一实施例中，所述预制轨枕板或预制轨道板中包含有多对扣件承轨台，优选为2～10对，更优选为4～6对。
本发明一实施例中，所述预制轨枕板或预制轨道板中部设有减重孔，纵向两端设置有缺口。
本发明一实施例中，所述减重孔和所述缺口上设置盖板，形成平整的疏散通道。
本发明一实施例中，所述轨道下部基础沿其纵向配置有排水沟。
本发明一实施例中，所述长板单元两侧设置第一限位结构，或板中设置第二限位结构。
本发明一实施例中，多个相邻的所述轨道单元之间设置板缝，部分或全部所述板缝中设置第三限位结构。
本发明一实施例中，所述预制轨枕板或预制轨道板为非预应力板。
本发明第五方面提供上述任一种的装配式轨枕板式或轨道板式无砟轨道结构的装配方法，包括以下步骤：
S1：成型浇筑轨道下部基础，沿轨道的走行方向依次将各预制轨枕板间隔一定距离放置在轨道下部基础上，预制轨枕板与轨道下部基础之间预留有一定的间隔，对各预制轨枕板进行初调定位；
S2：通过多个纵向连接结构将各预制轨枕板对应匹配连接，形成一个或多个长板单元后，再将各长板单元对应设置成无砟轨道结构，对各预制轨枕板进行定位，使得无砟轨道结构的钢轨整体水平；
S3：在部分或全部间隔区的轨道下部基础上设置限位构件，在同时设置有纵向连接结构和限位构件的间隔区中，在间隔区的横向两端分别现场浇筑填充物，包裹覆盖纵向连接结构、限位构件，固化后形成连接填充部分，三者一体成型实现同时限位和连接；在部分或全部、未设置限位构件的间隔区的横向两端分别现场浇筑填充物，包裹覆盖纵向连接结构。
上述改进技术特征只要彼此之间未构成冲突就可以相互组合。
总体而言，通过本发明实施例所构思的以上技术方案与现有技术相比，能够取得下列有益效果：
(1)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，连接结构简单，仅包含挤压套筒和外露钢筋，相邻轨枕板或轨道板在同一水平面，通过相邻外露钢筋连接，即可完成对轨排结构的纵向和横向水平定位，立模预制轨枕板或轨道板。
(2)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，制造方法简便，通过挤压套筒预先连接好相邻轨枕板或轨道板，提高了装配精度，降低生产成本，满足了快速高效生产预制板的需要。
(3)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，现场施工仅需要将预制轨枕板或轨道板铺设到位，安装挤压套筒，一次浇筑填充材料，即保证了轨枕板或轨道板在同一水平面上，现场施工速度快。
(4)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过设置多个可对应装配连接的预制轨枕板或预制轨道板，使其在轨道下部基础上沿轨道方向间隔设置，且对应在两相邻预制轨枕板或预制轨道板之间设置纵向连接结构以对应匹配连接，并在连接区域浇筑混凝土，使得预制轨枕板或预制轨道板形成装配式整体结构，从而实现了各预制轨枕板或预制轨道板的有效连接，形成了同一受力的长板单元结构体，保证了预制轨枕板或预制轨道板连接装配的整体性，提高了无砟轨道结构的装配精度和可靠性；
(5)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过在预制轨枕板或者预制轨道板之间的间隔区对应设置限位构件，在纵向连接结构和限位构件上对应现浇混凝土，使限位构件和纵向连接结构同时 包覆在混凝土结构中，并继而使得各预制轨枕板或预制轨道板与轨道下部基础形成整体结构，从而有效实现了预制轨枕板或预制轨道板的同时连接与限位，避免了现有轨枕板连接过程中的直接硬连接，保证了轨枕板连接的精度和可靠性，缩短了轨枕板连接设置的时间，提升了无砟轨道结构设置的效率，降低了无砟轨道结构设置成本；
(6)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其纵向连接结构和限位构件可分别通过预埋植筋的方式设置，设置方式简单，连接简便，可提升无砟轨道结构的设置效率，缩短施工的周期，其纵向连接结构和限位构件同时通过现浇混凝土进行包覆，并形成整体的连接-限位结构，有效提升结构的稳定性，确保连接和限位的精度，提升无砟轨道结构的运用稳定性；
(7)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过在轨枕板中部开设减重孔，和/或在轨枕板的两侧对应开设缺口，继而形成框架板，可有效减轻轨枕板的重量，减少轨枕板运输、铺设的难度，节约材料，且其可对应轨道下部基础上的排水沟，便于排水沟中杂物的清理，实现排水沟排水功能的快速检查与维护，提升无砟轨道结构的应用便捷性；
(8)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过多个预制轨枕板沿轨道方向对应串联而成，各轨枕板的板面分别水平，并且在预制轨枕板上开设减重孔和缺口后，对应各减重孔和缺口分别设置有盖板，使得各减重孔和各缺口的上端面均可被覆盖住，保证无砟轨道结构的两钢轨之间的区域水平，方便紧急情况下的人员疏散，避免了现有无砟轨道单元板因连接需要而设置的端面凸起结构所引起的人员走行不便，使得无砟轨道结构更能有效适应于例如地铁等场合的应用，满足无砟轨道的安全疏散需要；
(9)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通 过多个预制轨枕板或预制轨道板对应装配而成，其总体为装配式结构，一旦无砟轨道结构在后期应用过程中出现轨道病害，可对轨道结构病害位置的后浇区域进行对应破除，以解锁该位置的预制轨枕板或预制轨道板，从而可对病害位置的预制轨枕板或预制轨道板进行更换或者调整，显著降低了无砟轨道的维修时间和维修成本；
(10)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过设置一定长度的预制轨枕板或预制轨道板，以其装配成长板单元，根据使用区域的不同，可采用不同长度规格的轨枕板或者轨道板，且通过采将预制轨枕板或预制轨道板设置为短板，可以提升预制轨枕板或预制轨道板的曲线适应性，减少非标板和曲线板的种类及数量，降低轨枕板或轨道板的预制成本，提高无砟轨道结构的经济性，也方便后期的铺设精调；
(11)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其通过将若干预制轨枕板或预制轨道板装配成长板单元后，对应在相邻长板单元之间设置限位结构，或者在长板单元的两侧设置限位结构，或者在长板单元中的部分或全部预制轨枕板或预制轨道板的板体上设置限位结构，使得各长板单元能够实现精准限位，保证长板单元设置的稳定性和精确性，提升无砟轨道结构应用的精度；
(12)本发明实施例的装配式轨枕板式或轨道板式无砟轨道结构，其结构简单，装配方法简便，可快速装配得到无砟轨道结构，轨枕板或轨道板的连接与限位精度高，可靠性强，轨道装配的效率高，设置周期短，有效降低无砟轨道结构的设置成本，减少材料的浪费，提升轨道的使用寿命，具有十分重要的推广应用价值。
附图说明
图1为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的立体结构示意图；
图2为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的整体结构爆炸图；
图3为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的横向剖视图；
图4为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构处纵向剖视图；
图5为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构处平面俯视图；
图6为本发明实施例实施例中装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构处局部示意图；
在所有附图中，相同的标记表示同一技术特征，具体为：1.预制轨枕板，101.板体，102.纵向钢筋，103.减重孔，104.挤压套筒，1041.挤压肋，2.现浇层，3.轨道下部基础，301.排水沟；4.限位构件，401.限位钢筋，402.填充部分；5.钢轨。
具体实施方式
为了使本发明实施例的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明实施例进行详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明实施例，并不用于限定本发明实施例。
此外，下面所描述的本发明实施例各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。
本发明一实施例中装配式轨枕板式或轨道板式无砟轨道结构的整体结构示意图如图1和图2中所示，其中，无砟轨道结构通过沿纵向依次间隔排列的预制轨枕板或预制轨道板对应连接装配而成，在本发明一实施例中，以预制轨枕板1为例进行阐述，当然，预制轨道板也可通过如下实施例中的设置形式进行对应连接装配，形成无砟轨道结构。
在本发明一实施例中，无砟轨道结构包括依次匹配设置的预制轨枕板1、现浇层2和轨道下部基础3；轨道下部基础3沿轨道方向设置，一实施例中轨道下部基础3可由钢筋混凝土浇筑而成的混凝土底座或者基础回填层，用于承载预制轨枕板1和设置在该轨枕板1上的钢轨5，以及运行在钢轨5上的列车；本发明一实施例中轨道下部基础3的宽度和厚度不做具体限定，其可根据实际需要进行选择，故而在此不做赘述；本发明一实施例中，如图3中所示，在轨道下部基础3上对应设置有排水沟301，以及时排除并减少轨道中的积水，本发明一实施例中的排水沟301可以为沿轨道方向设置，且本发明一实施例中排水沟301可以设置在轨道下部基础3的中部；当然，本发明一实施例中排水沟301也可以为并排设置在轨道下部基础3两侧的两个，或者设置与轨道下部基础3任意侧的一个，这可根据实际需要进行选择，在此不做赘述。
本发明一实施例中的现浇层2设置在预制轨枕板1和轨道下部基础3之间，其可通过预制轨枕板1放置在轨道下部基础3上并经过对应连接、粗调、精调后浇筑得到，使得预制轨枕板1和轨道下部基础3紧密贴合，以承受预制轨枕板1上传递的垂向力，起到缓冲受力和均匀受力的作用，现浇层2的设置可充分实现施工过程中预制轨枕板1的调整，确保无砟轨道中各位置轨道的水平度或者平整度，保证轨道运行的平整性；在本发明一实施例中，预制轨枕板1对应放置在轨道下部基础3上后，调整各预制轨枕板1与轨道下部基础3之间的距离，使得各预制轨枕板1上设置的钢轨5可对应连接，并保证轨道的对应拼接精度；在本发明一实施例中，预制轨枕板1设置在轨道下部基础3上之后，两者之间间隔有一定的距离，继而对预制轨枕板1进行粗调和精调，并在两者间隔的空间内浇筑对应厚度的混凝土，从而形成无砟轨道结构的现浇层2。
本发明一实施例中，为提高现浇层2与预制轨枕板1和轨道下部基础3 之间的连接可靠性，本发明一实施例中对预制轨枕板1的下表面和/或轨道下部基础3的上表面进行了“毛化”处理，即使得预制轨枕板1的下表面和/或轨道下部基础3的上表面粗糙度增大，平整度降低，继而使得现浇层2与预制轨枕板1和轨道下部基础3连接的静摩擦力增大，提升现浇层2与预制轨枕板1和轨道下部基础3的连接稳定性，使得预制轨枕板1和轨道下部基础3通过现浇层2形成同一的轨道结构受力体，从而提升无砟轨道结构的受力稳定性。
本发明一实施例的预制轨枕板1如图1～2中所示，其呈板状结构，且本发明一实施例的预制轨枕板1为非预应力板，当然，其也可设置为预应力板的形式，这可根据实际需要运用现有技术中的相关技术手段来实现；本发明一实施例中，多块预制轨枕板1可依次沿轨道方向间隔设置在轨道下部基础3上并对应串联形成整体的无砟轨道结构，相邻两预制轨枕板1之间以侧面对正后匹配连接；本发明一实施例中预制轨枕板1的顶部沿轨道方向间隔设置有多对可对应安装钢轨5的扣件承轨台，本发明一实施例中预制轨枕板1上间隔设置的扣件承轨台数量为4对，当然，预制轨枕板1上扣件承轨台的设置数量可根据预制轨枕板1的长度或者相邻两扣件承轨台之间的间隔进行设置，如设置为2对、3对、5对、6对、7对、8对、9对、10对等，本发明一实施例中可具体设置为4～6对。
本发明一实施例中的两相邻预制轨枕板1之间设置有纵向连接结构，本发明一实施例中两预制轨枕板1可对应连接的侧面上分别设置的纵向钢筋102，纵向钢筋102沿预制轨枕板1的长度方向设置，即沿无砟轨道结构的轨道方向设置，且纵向钢筋102在本发明一实施例中为间隔设置在预制轨枕板1侧面上的多个，继而两预制轨枕板1对正后，两预制轨枕板1相对侧面上的各纵向钢筋102可分别对正，并继而实现对应连接.
如图4、图5、图6所示，本发明一实施例中相邻两个预制轨枕板1中 均预埋有纵向钢筋102并伸出端面，与匹配的另一纵向钢筋102间隔设置，两个纵向钢筋102通过挤压套筒104进行纵向连接；所述挤压套筒104的内径大于纵向钢筋102的外径，两个纵向钢筋102的对接端分别插入所述挤压套筒104的两端内，在便携式挤压机的挤压下，所述挤压套筒104变形锁紧，外部形成多个挤压肋1041。本发明一实施例中，所述纵向钢筋102的对接端插入所述挤压套筒104的部分至少包括三圈螺纹，以保证锁紧力。
当然，纵向钢筋102的连接不局限于上述形式，其也可通过对应纵向钢筋102设置搭接件，以搭接件的两端分别焊接两个纵向钢筋102，实现两预制轨枕板1的纵向连接；而且，纵向连接结构也不局限于上述设置纵向钢筋102的形式，其可根据实际需要选择为别的形式，如在另一实施例中，分别在两预制轨枕板1的侧面上设置连接板，再对应设置纵向螺栓以将两预制轨枕板1对应连接，从而实现预制轨枕板1的纵向连接；又或者在另一个实施例中，通过在预制轨枕板1的板端预埋结构，如预埋钢板、预埋铁件等，后期通过螺栓连接、焊接、或者铰接等型式形成牢固可靠的连接，完成预制轨枕板1的装配连接。
本发明一实施例中的预制轨枕板1用于连接的侧面上设置有多个纵向钢筋102，其分设于上述侧面的两端，且本发明一实施例中的上述侧面两端分别设置的纵向钢筋102的数量为4个，即预制轨枕板1连接端面上设置的纵向钢筋102为8个，继而两预制轨枕板1之间可在对正后通过8个套筒对应连接，纵向钢筋102与套筒在本发明一实施例中对应组成纵向连接结构，实现预制轨枕板1的纵向连接，并继而形成沿轨道方向的整体单元；当然，两预制轨枕板1之间纵向钢筋102可全部以套筒对应匹配连接，也可以部分通过套筒对应连接。
本发明一实施例中，通过纵向连接结构的对应连接，可将多个预制轨枕板1沿纵向对应连接成一定长度的长板单元，继而本发明一实施例中的 无砟轨道结构可通过一个或者多个长板单元对应组合构成；本发明一实施例中的长板单元可通过现浇层2与轨道下部基础3形成整体受力结构，即形成轨道单元，继而无砟轨道结构可由沿纵向设置的多个轨道单元对应装配而成，各轨道单元分别作为整体受力结构来完成无砟轨道结构的受力。
本发明一实施例中在每个长板单元之间设置有板缝，并在板缝中对应设置有限位结构，以限位结构对应实现长板单元的限位，该限位结构可以为凸台、圆柱件等，限位结构可以选择性设置，也可在各板缝中均设置，这可根据实际情况进行选择，在此不做赘述。
当然，长板单元的限位也不局限于设置上述限位结构，其可根据实际需要设置为别的形式，如在一个实施例中，在长板单元的两侧分别设置有限位结构，由长板单元侧边上的限位结构对应连接轨道下部基础，实现长板单元的限位，本发明一实施例中该限位结构可以为竖向设置在预制轨枕板1侧面上锚固钢筋或者连接凸台；相应地，在另一个实施例中，可通过在长板单元中的部分或全部预制轨枕板1的板面上竖向开设通孔结构或者设置连通两板面的套筒，使得长板单元装配到位后，可通过在上述通孔或套筒中植筋或者设置限位钢钉的方式实现长板单元的限位，植筋的钢筋或者限位钢钉对应匹配进轨道下部基础中，保证长板单元的限位稳固。此外，各长板单元的限位也可根据实际需要设置为别的形式，这运用现有技术中的相关技术手段较容易实现，故而在此不做赘述。
本发明一实施例中的两相邻预制轨枕板1通过纵向连接结构对应连接后，可对应纵向连接结构设置连接填充部分，本申请一实施例中填充部分通过在两预制轨枕板1之间的间隔区现浇钢筋混凝土或者有机材料后得到；当然，本发明一实施例中所有间隔区的横向两端之间可对应设置连接填充部分，也可仅在部分间隔区的横向两端之间对应设置连接填充部分，这可根据实际情况进行设置；本发明一实施例中在纵向连接结构上现浇钢筋混 凝土前，可以在纵向连接结构上设置横截面平面内的环向箍筋，以将两板间隔区中的多个纵向连接结构及连接填充部分连接成整体结构，环向箍筋的设置数量可为一个，也可为沿纵向间隔设置的多个，且环向箍筋与纵向连接结构的连接形式不做具体限定，其可通过焊接连接，也可通过捆绑连接，在此不做具体限定；本发明一实施例中，待两相邻预制轨枕板的纵向连接结构对应连接，且环向箍筋和纵向连接结构匹配连接成整体框架结构后，在上述整体框架结构上对应现浇钢筋混凝土，使得两预制轨枕板1之间的连接填充部分的设置稳定性更高，多个预制轨枕板1可对应形成稳定的长板单元，即形成同一受力结构体，使得长板单元中的各预制轨枕板1不单一受力，而是整体受力，从而确保长板单元乃至无砟轨道结构的受力稳定性。
本发明一实施例中的两相邻预制轨枕板1之间的间隔区中对应设置有限位构件，该限位构件在本发明一实施例中为竖向设置在轨道下部基础上的限位钢筋401，即限位钢筋401的一端固定设置在轨道下部基础3上，另一端竖向设置在两预制轨枕板1之间；当然，限位钢筋401与轨道下部基础3之间的连接方式可根据实际需要进行选择，如现场植筋，或者通过预埋的形式固定设置在轨道下部基础3上；而且限位构件也可设置为别的形式，如在轨道下部基础3中设置钢筋套筒预埋件，或者在间隔区中对应设置限位凸台等；本发明一实施例中，限位构件的设置数量可以为一个或者多个，这可根据限位构件的设置形式或者实际需要进行设置，且沿无砟轨道的轨道方向，各预制轨枕板1之间的间隔区可均设置限位构件，或者在部分间隔区中设置限位构件，这均可根据实际需要进行设置，在此不做赘述。
本发明一实施例中，若两预制轨枕板1之间的间隔区中设置有限位构件，其在纵向连接结构对应连接后设置，本发明一实施例中若对应纵向连 接结构设置有环向箍筋，则可将限位构件与环向箍筋对应匹配连接，使得限位构件与纵向连接结构成为整体结构，继而对上述整体结构浇筑钢筋混凝土，并形成如附图中所示的填充部分402，该填充部分402同时包覆限位构件和纵向连接结构，使之形成整体结构，从而实现同时限位和连接，使得纵向连接结构、限位构件和连接填充部分一体成型，使得各预制轨枕板1形成整体受力结构体。
本发明一实施例中的预制轨枕板1中部开设有贯穿板体101两端面的减重孔103，使得预制轨枕板1成为框架板结构，且该减重孔103的开设位置与设置在轨道下部基础3中部的排水沟301对正，不仅减轻预制轨枕板1的重量，节省材料，便于运输和安装，而且极大方便了排水沟301的清理，减少了无砟轨道结构应用过程中排水沟301堵塞情况的发生；相应地，本发明一实施例中对应减重孔103设置有盖板，其可对应盖设在减重孔103上，形成平整的疏散通道，以便于在无砟轨道结构上的行走；本发明一实施例中，在板体101用于匹配连接的侧面上对应开设有缺口，本发明一实施例中，缺口呈半环形，以使得预制轨枕板1的重量降低，且两预制轨枕板1以侧面对正并匹配连接后，两相对侧面上的两缺口可分别对正，并组成环形的缺口，如图1中所示，继而对应组合而成的缺口设置相应的盖板，从而使得无砟轨道结构上的两钢轨5之间的区域水平，便于行走，也减少轨枕面上的垃圾掉入排水沟301中。
本发明一实施例中，预制轨枕板1用于匹配连接的两侧端面中部对应开设有半环形的缺口，缺口的设置使得各端面的两端分别形成凸起结构，继而各纵向钢筋102可对应设置在两凸起结构的端面上，即在两预制轨枕板1对应连接时，可对应使得两预制轨枕板1端部的凸起结构对正，继而使得凸起结构上对应的纵向钢筋102分别对正，从而实现预制轨枕板1以纵向钢筋102的对应连接。
在上述实施例中，相邻两预制轨枕板1之间的连接通过在各预制轨枕板1的端面上预埋纵向钢筋1来实现，这是本发明实施例中的一种方式，但并非为唯一的设置方式，如在另一个实施例中，通过在各预制轨枕板1的端面上对应设置套筒，使得两预制轨枕板1对应设置在轨道下部基础3上后，两预制轨枕板1相对侧面上的套筒分别对正，继而在各组对正的套筒中对应设置纵向钢筋，使得纵向钢筋的一端对应连接在一个预制轨枕板1侧面上的套筒上，另一端连接在另一个预制轨枕板1侧面上相应的套筒上，从而使得两预制轨枕板1可通过多组套筒与纵向钢筋的对应匹配来实现对应连接，每组套筒中分别对应连接设置有纵向钢筋。
当然，预制轨枕板1端面上的纵向钢筋或者套筒可通过预埋设置，也可通过其他形式进行设置，如在预制轨枕板1的端面上设置连接板，继而将纵向钢筋或者套筒的一端对应焊接在连接板上实现定位。
本发明一实施例中，上述所记载的装配式轨枕板式或轨道板式无砟轨道结构的装配方法，可通过如下步骤来进行，本发明一实施例中以预制轨枕板1为例，预制轨道板的装配可采用相同的步骤进行，其步骤如下：
S1：在隧道(如地铁隧道)中对应成型浇筑轨道下部基础3，继而将工厂中制造的预制轨枕板1搬运至施工现场，沿轨道的走行方向依次将各预制轨枕板1间隔一定距离放置在轨道下部基础3上，预制轨枕板1与轨道下部基础3之间预留有一定的间隔，对各预制轨枕板1进行初调定位；
S2：通过多个纵向连接结构(如本发明一实施例中所记载的纵向钢筋102和挤压套筒104)将各预制轨枕板1对应匹配连接，形成一个或多个长板单元后，再将各长板单元对应设置成无砟轨道结构，继而对各预制轨枕板1进行精调定位，使得无砟轨道结构的钢轨5整体水平，保证钢轨5的平整度或者水平度；
S3：在部分或全部间隔区的轨道下部基础上设置限位构件(如本发明 一实施例中实施例中所记载的限位钢筋401)，在同时设置有纵向连接结构和限位构件的间隔区中，在间隔区的横向两端分别现场浇筑填充物(本发明一实施例中填充物可以为混凝土或有机减振材料)，包裹覆盖纵向连接结构、限位构件，固化后形成连接填充部分，三者一体成型实现同时限位和连接；在部分或全部、未设置限位构件的间隔区的横向两端分别现场浇筑填充物，包裹覆盖纵向连接结构；通过一次现浇同时完成整体化和横向、纵向的限位，从而若干块预制轨枕板装配形成预定长度的长板单元并形成统一的受力结构体。
本发明实施例中的装配式轨枕板式或轨道板式无砟轨道结构及装配方法，其无砟轨道的结构简单，装配方法简便，通过将无砟轨道结构设置为多个轨枕板相互装配的形式，从而快速装配得到无砟轨道结构，有效适用于地铁的应用环境。本发明实施例中的轨枕板，其通过预制成型，再通过装配的形式完成无砟轨道结构的装配，装配形式简单，装配效率高，能大幅提升无砟轨道结构的装配效率，缩短装配的周期，且通过在预制轨枕板的两侧端面上对应设置纵向连接结构，使得两轨枕板之间可通过纵向连接结构对应连接，有效实现了轨枕板的连接；通过在两轨枕板相互连接的位置对应设置限位构件，由其对轨枕板的纵向位置进行限位，有效保证了轨道运行的稳定性，确保了轨道的运行精度，且限位构件和纵向连接结构可一体成型，即可同时实现轨枕板的限位与连接，大幅缩短轨枕板的设置周期，提升无砟轨道的设置效率；同时，通过在轨枕板的中部开设减重孔，可有效减轻轨枕板的重量，提升轨枕板的运输便捷性，节约材料，降低轨枕板的生产成本，具有十分重要的推广应用价值。
本领域的技术人员容易理解，以上所述仅为本发明实施例的较佳实施例而已，并不用以限制本发明实施例，凡在本发明实施例的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明实施例的保护 范围之内。

Claims (17)

  1. 一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有纵向钢筋并伸出端面，与匹配的另一纵向钢筋间隔设置，两个纵向钢筋通过挤压套筒进行纵向连接；
    所述挤压套筒的内径大于纵向钢筋的外径，两个纵向钢筋的对接端分别插入所述挤压套筒的两端内，在便携式挤压机的挤压下，所述挤压套筒变形锁紧。
  2. 根据权利要求1所述的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，所述纵向钢筋的对接端插入所述挤压套筒的部分至少包括三圈螺纹。
  3. 根据权利要求1所述的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，在纵向连接结构上设置横截面平面内的环向箍筋。
  4. 一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有纵向钢筋并伸出端面，相邻两个预制轨枕板或预制轨道板中的纵向钢筋间隔设置，间隔设置的纵向钢筋通过挤压套筒进行纵向连接；
    所述挤压套筒的内径大于所述纵向钢筋的外径，间隔设置的纵向钢筋的对接端分别插入所述挤压套筒内，所述挤压套筒能够被挤压变形以锁紧插入所述挤压套筒内的钢筋。
  5. 一种装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构，相邻两个预制轨枕板或预制轨道板中均预埋有连接板并伸出端面，相邻两个所述预制轨枕板或所述预制轨道板中的连接板相互连接。
  6. 一种装配式轨枕板式或轨道板式无砟轨道结构，包括预制轨枕板或预制轨道板、现浇层、轨道下部基础、连接填充部分以及如权利要求1 或2或4或5所述的装配式轨枕板式或轨道板式无砟轨道结构的纵向连接结构；
    其中，若干块所述预制轨枕板或预制轨道板纵向间隔排列设置，在间隔区各所述预制轨枕板或预制轨道板的横向两端分别通过纵向连接结构彼此装配连接；在部分或全部间隔区，采用钢筋混凝土结构作为连接填充部分，使得连接填充部分与预制轨枕板或预制轨道板形成装配整体式结构，预制轨道板形成同一受力长板单元结构体。
  7. 根据权利要求6所述的装配式轨枕板式或轨道板式无砟轨道结构，至少部分间隔区的横向两端分别设置有连接填充部分，至少部分间隔区的所述轨道下部基础设置有限位构件，且同时设置有连接填充部分和限位构件的间隔区中所述纵向连接结构和所述限位构件均埋设于同一个所述连接填充部分中，三者一体成型实现同时限位和连接，从而若干块所述预制轨枕板或预制轨道板装配形成预定长度的轨道单元并形成同一的受力结构体。
  8. 根据权利要求6所述的装配式轨枕板式或轨道板式无砟轨道结构，至少部分间隔区的横向两端分别设置有连接填充部分，至少部分间隔区的所述轨道下部基础设置有限位构件，且同时设置有纵向连接结构和限位构件的间隔区中所述纵向连接结构和所述限位构件均埋设于同一个所述连接填充部分中，三者一体成型实现同时限位和连接，从而若干块所述预制轨枕板或预制轨道板装配形成预定长度的轨道单元并形成同一的受力结构体。
  9. 根据权利要求7或8所述的装配式轨枕板式或轨道板式无砟轨道结构，所述限位构件为所述轨道下部基础上表面的植筋、钢筋套筒预埋件、限位凸台或预留钢筋。
  10. 根据权利要求9所述的装配式轨枕板式或轨道板式无砟轨道结 构，所述限位构件为：
    限位钢筋，所述限位钢筋的一端固定设置在轨道下部基础上，另一端竖向设置在两预制轨枕板或轨道板之间；或
    钢筋套筒预埋件，所述钢筋套筒预埋件设置在轨道下部基础上；或
    限位凸台，所述限位凸台设置在所述间隔区内。
  11. 根据权利要求9所述的装配式轨枕板式或轨道板式无砟轨道结构，在纵向连接结构上设置横截面平面内的环向箍筋，所述限位构件与所述环向箍筋连接。
  12. 根据权利要求7或8所述的装配式轨枕板式或轨道板式无砟轨道结构，所述预制轨枕板或预制轨道板中部设有减重孔，纵向两端设置有缺口。
  13. 根据权利要求12所述的装配式轨枕板式或轨道板式无砟轨道结构，所述减重孔和所述缺口上设置盖板，形成平整的疏散通道。
  14. 根据权利要求12所述的装配式轨枕板式或轨道板式无砟轨道结构，所述轨道下部基础沿其纵向配置有排水沟。
  15. 根据权利要求7或8所述的装配式轨枕板式或轨道板式无砟轨道结构，所述长板单元两侧设置第一限位结构，或板中设置第二限位结构。
  16. 根据权利要求7或8所述的装配式轨枕板式或轨道板式无砟轨道结构，多个相邻的所述轨道单元之间设置板缝，部分或全部所述板缝中设置第三限位结构。
  17. 一种根据权利要求6-16中任一项所述的装配式轨枕板式或轨道板式无砟轨道结构的装配方法，包括以下步骤：
    S1：浇筑轨道下部基础，沿轨道的走行方向依次将各预制轨枕板间隔一定距离放置在轨道下部基础上，预制轨枕板与轨道下部基础之间预 留有一定的间隔，对各预制轨枕板进行初调定位；
    S2：通过多个纵向连接结构将各预制轨枕板对应匹配连接，形成一个或多个长板单元后，再将各长板单元对应设置成无砟轨道结构，对各预制轨枕板进行定位，使得无砟轨道结构的钢轨整体水平；
    S3：在部分或全部间隔区的轨道下部基础上设置限位构件，在同时设置有纵向连接结构和限位构件的间隔区中，在间隔区的横向两端分别现场浇筑填充物，包裹覆盖纵向连接结构、限位构件，固化后形成连接填充部分，三者一体成型实现同时限位和连接；在部分或全部、未设置限位构件的间隔区的横向两端分别现场浇筑填充物，包裹覆盖纵向连接结构。
PCT/CN2019/126062 2019-09-19 2019-12-17 装配式无砟轨道结构及其纵向连接结构以及装配方法 WO2021051684A1 (zh)

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