CN111155365A

CN111155365A - Assembled floating unit plate and assembling connection construction method

Info

Publication number: CN111155365A
Application number: CN202010067255.5A
Authority: CN
Inventors: 朱志辉; 黄宇佳; 曾志平; 陈伟; 刘禹兵
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-05-15

Abstract

The invention discloses an assembled floating unit plate and an assembling connection construction method. The plurality of floating plate unit blocks are sequentially arranged along the extending direction of the track line. The connecting structure is arranged between the adjacent floating plate unit blocks and is used for connecting the plurality of floating plate unit blocks to form a linear floating unit plate extending along a straight line or connecting the plurality of floating plate unit blocks to form a curved floating unit plate with bending curvature. Compared with the common prefabricated floating slab in the prior art, the floating unit slab is not limited by construction space and transportation and hoisting, and can be transported and hoisted more conveniently and more labor-saving; it can connect the unit board that floats that forms arbitrary length according to actual track circuit length, uses the flexibility very high, and the unit board structure that floats is stable, firm, does not have joint gap between the adjacent board unit piece that floats, and driving safety nature is very high, and the damping effect is very good.

Description

Assembled floating unit plate and assembling connection construction method

Technical Field

The invention relates to the field of rail transit, in particular to an assembled floating unit plate. In addition, the invention also relates to an assembling connection construction method of the assembling type floating unit plate.

Background

The floating slab track bed is the most effective structure for reducing the vibration and noise of the rail transit at present, and has the remarkable advantages of good vibration reduction effect, low later-stage operation and maintenance cost, long service life and the like compared with other vibration reduction rails. The floating slab track bed generally adopts a construction mode of cast-in-place or prefabricated installation, but the cast-in-place floating slab has complex structure, the quality of cast-in-place construction is not easy to guarantee, and the problems of poor appearance, exposed reinforcing steel bars, surface cracking, large deviation of geometric dimension precision of a track and the like are easy to occur.

Although the common prefabricated floating slab is suitable for mass production in factories and has high construction speed, the section of a tunnel construction site is small and is limited by construction space and transportation and hoisting, the length of a single block of the common prefabricated floating slab is generally 3.6-8 m and cannot reach 25-30 m of the cast-in-place floating slab, and the shorter length and the smaller mass reduce the vibration reduction effect of the common prefabricated floating slab. Ordinary prefabricated floating slab receives length to influence, in the actual work progress, need connect into the floating slab way bed section of required length with prefabricated floating slab through the shear force hinge that sets up between two adjacent prefabricated floating slabs, because adjacent prefabricated floating slab board end is discontinuous, and need set up the connection fastener and connect, so the during operation receives the impact effect to influence, it damages easily and board end discontinuous to connect the fastener, make driving safety poor, the damping effect is poor, and track structure life is short, need frequent maintenance, required cost of maintenance is high, and frequent maintenance and then influence the availability factor of floating slab way bed section.

Disclosure of Invention

The invention provides an assembled floating unit plate and an assembling connection construction method, and aims to solve the technical problems that an existing common prefabricated plate is limited by construction space and transportation and hoisting, poor in driving safety, poor in vibration reduction effect and high in maintenance cost.

The technical scheme adopted by the invention is as follows:

an assembled floating unit plate comprises a plurality of floating plate unit blocks and a connecting structure; the plurality of floating plate unit blocks are sequentially arranged along the extension direction of the track line; the connecting structure is arranged between the adjacent floating plate unit blocks and is used for connecting the plurality of floating plate unit blocks to form a linear floating unit plate extending along a straight line or connecting the plurality of floating plate unit blocks to form a curved floating unit plate with bending curvature.

Furthermore, the floating plate unit block comprises a prefabricated plate body and a rail bearing table group; the prefabricated plate body comprises a first splicing surface and a second splicing surface which are oppositely arranged, the first splicing surface and the second splicing surface are arranged along the width direction of the floating unit plate, the first splicing surface and two adjacent side surfaces are obliquely arranged to form an inclined surface, the second splicing surface and the two adjacent side surfaces are vertically arranged to form a vertical surface, or the second splicing surface and the first splicing surface are symmetrically arranged along the centerline plane of the floating unit plate unit block; the outer end surface and the inner end surface which are oppositely arranged are respectively connected between the first splicing surface and the second splicing surface, the first splicing surface, the outer end surface, the second splicing surface and the inner end surface form the peripheral side surfaces of the prefabricated plate body, and the prefabricated plate body further comprises an upper surface used as a supporting platform; the first splicing surfaces of the prefabricated plate bodies are connected with the first splicing surfaces of the adjacent prefabricated plate bodies through a connecting structure to form a linear floating unit plate extending along a straight line; and/or the first splicing surface of the prefabricated plate body is connected with the second splicing surface of the adjacent prefabricated plate body through a connecting structure to form a curve-type floating unit plate with bending curvature; the rail bearing table group is connected to the upper surface of the prefabricated plate body and used for installing the rail part.

Furthermore, the connecting structure comprises a plurality of groups of first connecting plate groups connected between two adjacent prefabricated plate bodies and a concrete connecting layer filled between the two adjacent prefabricated plate bodies; the first connecting plate group comprises a first connecting plate, a second connecting plate and a first fastener, wherein a fixed end of the first connecting plate is embedded in a first prefabricated plate body, a connecting end of the first connecting plate extends out of a first splicing surface, a fixed end of the second connecting plate is embedded in a second prefabricated plate body adjacent to the first prefabricated plate body, a connecting end of the second connecting plate extends out of the first splicing surface or the second splicing surface, the first fastener is used for locking and fixing, the connecting end of the first connecting plate and the connecting end of the second connecting plate are abutted against each other, and the first fastener is simultaneously arranged in the connecting end of the first connecting plate and the connecting end of the second connecting plate in a penetrating mode so as to lock and fix the first; the concrete connecting layer is filled between the two adjacent prefabricated plate bodies and covers the connecting end of the first connecting plate, the connecting end of the second connecting plate and the first fastener.

Furthermore, the connecting structure comprises a first connecting rib, a second connecting plate group, a third connecting plate group, a second fastener and a concrete connecting layer, wherein the fixed end of the first connecting rib is embedded in the first prefabricated plate body, the connecting end of the first connecting rib extends out of the first splicing surface, the fixed end of the second connecting rib is embedded in the second prefabricated plate body adjacent to the first prefabricated plate body, and the connecting end of the second connecting rib extends out of the first splicing surface or the second splicing surface; the second connecting plate group and the third connecting plate group are arranged along the width direction of the assembled floating unit plate, and the second connecting plate group and the third connecting plate group are in one-to-one correspondence and are mutually abutted; the second fastener penetrates through the second connecting plate group and the third connecting plate group simultaneously to lock and fix the second connecting plate group and the third connecting plate group which are correspondingly arranged; the concrete connecting layer coats the second connecting plate group, the third connecting plate group and the second fastening piece.

Furthermore, assembly preformed holes are respectively arranged at two ends of a first splicing surface of the prefabricated plate body, the assembly preformed holes are perpendicular to the first splicing surface and penetrate through the prefabricated plate body to the outside of a second splicing surface, and a concave grouting preformed hole communicated with the assembly preformed holes is arranged on the upper surface of the prefabricated plate body; the connecting structure comprises an anchor rod group used for relatively tensioning a plurality of prefabricated plate bodies which are sequentially arranged along the extending direction of a track line, the anchor rod group is arranged in assembly preformed holes of the plurality of prefabricated plate bodies which are sequentially arranged in a penetrating manner, and two ends of the anchor rod group respectively extend out of the assembly preformed holes of the prefabricated plate bodies on the corresponding side; the connecting structure further comprises a concrete connecting cylinder filled in the assembly preformed hole and coated with the anchoring rod group correspondingly arranged, a concrete connecting column filled in the grouting preformed hole and connected with the concrete connecting cylinder correspondingly arranged, and a concrete connecting layer filled in the extending end of the anchoring rod group of the prefabricated plate body and used for connecting the two adjacent prefabricated plate bodies into a whole.

Furthermore, concave connection preformed holes are respectively arranged on the inner end surface and the outer end surface of the prefabricated plate body; the connecting structure comprises positioning and supporting devices respectively arranged at two sides of a first prefabricated plate body, longitudinal force application devices respectively arranged at two sides of a second prefabricated plate body adjacent to the first prefabricated plate body, a tooth-biting-shaped connecting structure arranged between the first prefabricated plate body and the second prefabricated plate body, and a splicing agent filled between the tooth-biting-shaped connecting structures; the positioning and supporting device is fixedly supported on the ground and detachably connected with the corresponding connection preformed hole on the inner end surface or the outer end surface so as to be used for fixedly supporting the prefabricated plate body; the longitudinal force application device is supported on the ground and is detachably connected with the corresponding connection preformed hole on the inner end surface or the outer end surface, and the longitudinal force application device applies pushing force which is close to the first prefabricated plate body supported on the positioning and supporting device to the second prefabricated plate body so as to enable the tooth-biting-shaped connection structures to be mutually clenched and fixed through the splicing agent.

Furthermore, a perfusion cavity is arranged between two adjacent prefabricated plate bodies; the connecting structure comprises a first connecting pipe pre-buried in a first prefabricated plate body and a second connecting pipe pre-buried in a second prefabricated plate body adjacent to the first prefabricated plate body, the first connecting pipe and the second connecting pipe are hollow pipes with two communicated ends, the inflow ends of the first connecting pipe and the second connecting pipe are respectively communicated with the corresponding upper surfaces, the outflow ends of the first connecting pipe and the second connecting pipe are respectively sleeved and clamped in the filling cavity after extending out of the corresponding first splicing surface or the corresponding second splicing surface, and the side walls of the outflow ends of the first connecting pipe and the second connecting pipe are respectively provided with a pulp outlet communicated with the filling cavity; the connecting structure further comprises a concrete connecting column filled in the first connecting pipe and the second connecting pipe and a concrete connecting layer formed by concrete overflowing from the grout outlet to the pouring cavity, and the concrete connecting layer coats the outflow end of the first connecting pipe or the second connecting pipe.

According to another aspect of the present invention, there is also provided a construction method for assembling and connecting the floating unit plates, the construction method comprising the following steps: marking the position of the floating plate unit block on the basis of the track, hoisting a first pre-processed floating plate unit block to the position, and adjusting the placing position of the first floating plate unit block; hoisting the second floating plate unit blocks to the positions, and adjusting the placing positions of the second floating plate unit blocks to align the assembly reserved holes of the two adjacent floating plate unit blocks; the anchoring rod group is arranged in assembly preformed holes of the plurality of floating plate unit blocks which are arranged in sequence in a penetrating mode, and the part, extending out of the assembly preformed holes, of the anchoring rod group is tightly anchored; pouring concrete through the grouting preformed hole to form a concrete connecting cylinder for coating the anchoring rod group and a concrete connecting column for filling the grouting preformed hole; pouring concrete between the overhanging ends of the adjacent anchor rod groups to form a concrete connecting layer for coating the overhanging ends of the anchor rod groups; and sequentially positioning and assembling the rest floating plate unit blocks according to the steps to form the assembled floating unit plate with the connecting structure.

According to another aspect of the present invention, there is also provided a construction method for assembling and connecting the floating unit plates, the construction method comprising the following steps: marking the position of the floating plate unit block on the basis of the track, hoisting a first pre-processed floating plate unit block to the position, and adjusting the placing position of the first floating plate unit block; hoisting the second floating plate unit blocks to the positions, and adjusting the placing positions of the second floating plate unit blocks to form a tooth-biting-shaped connecting structure between two adjacent floating plate unit blocks; the floating plate unit blocks are fixedly supported on the ground by installing positioning and supporting devices through the connection preformed holes of the floating plate unit blocks, and the longitudinal force application devices are installed through the connection preformed holes of the adjacent floating plate unit blocks; respectively smearing splicing agents on the connecting surfaces of the tooth-biting-shaped connecting structures, or pouring the splicing agents between the connecting surfaces of the tooth-biting-shaped connecting structures; starting a longitudinal force application device to apply thrust so as to enable the tooth-biting-shaped connecting structures to be mutually fastened and fixed through splicing agents; disassembling the positioning and supporting device and the longitudinal force application device; and sequentially positioning and assembling the rest floating plate unit blocks according to the steps to form the assembled floating unit plate with the connecting structure.

According to another aspect of the present invention, there is also provided a construction method for assembling and connecting the floating unit plates, the construction method comprising the following steps: marking the position of the floating plate unit block on the basis of the track, hoisting a first pre-processed floating plate unit block to the position, and adjusting the placing position of the first floating plate unit block; hoisting the second floating plate unit block to the position, and adjusting the placing position of the second floating plate unit block to ensure that the first connecting pipe and the second connecting pipe are oppositely arranged; pushing the adjacent floating plate unit blocks to approach each other so that the first connecting pipe and the second connecting pipe are sleeved and clamped with each other; pouring concrete from the inflow end of the first connecting pipe or the second connecting pipe to form a concrete connecting column for filling the first connecting pipe and the second connecting pipe and a concrete connecting layer for filling the pouring cavity and coating the outflow ends of the first connecting pipe and the second connecting pipe; and sequentially positioning and assembling the rest floating plate unit blocks according to the steps to form the assembled floating unit plate with the connecting structure.

The invention has the following beneficial effects:

compared with the common prefabricated floating plate in the prior art, the floating unit plate is formed by connecting a plurality of floating plate unit blocks which are sequentially distributed along the extension direction of a track through a connecting structure, so that on one hand, compared with the common prefabricated floating plate, the floating plate unit blocks with smaller volume and weight are not limited by construction space and transportation and hoisting, and can be transported and hoisted more conveniently and more laborsavingly; on the other hand, the floating unit plate is formed by sequentially connecting a plurality of floating plate unit blocks through the connecting structure, so that compared with the existing common prefabricated floating plate, the prefabricated floating unit plate is generally 3.6-8 m, the prefabricated floating unit plate can be connected to form a floating unit plate with any length according to the length of an actual track line, the flexibility in use is very high, and the whole structure formed by connecting the plurality of floating plate unit blocks through the connecting structure is adopted, so that the floating unit plate is stable and firm in structure, no connecting gap exists between the adjacent floating plate unit blocks, the driving safety is very high, and the vibration reduction effect is very good; when the assembled floating unit plates are connected to form the floating slab track bed section, compared with the existing common prefabricated floating slab connected to form the floating slab track bed section, the assembled floating unit plates can be connected by the floating slab unit blocks through the connecting structure to form any length, so that the discontinuous occurrence frequency of the plate end in the floating slab track bed section can be greatly reduced, the driving safety and the vibration damping effect are greatly improved, the service life of the track structure is prolonged, the required maintenance frequency and the maintenance difficulty are reduced, and the maintenance efficiency and the use efficiency of the floating slab track bed section are improved; the assembled floating unit plate can be formed by connecting floating plate unit blocks through a connecting structure, and is a linear floating unit plate extending along a straight line or a curved floating unit plate with bending curvature.

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 invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an expanded view of a first prefabricated panel body of a preferred embodiment of the present invention having a right trapezoid cross-section; FIG. 2 is an expanded view of a second prefabricated panel body of a preferred embodiment of the present invention having a right trapezoid cross section; FIG. 3 is a straight floating unit plate formed by connecting prefabricated plate bodies with right trapezoid cross sections; FIG. 4 is a curved floating unit plate formed by connecting prefabricated plate bodies with right-angled trapezoids in section; FIG. 5 is a schematic view of the spatial structure of a third prefabricated panel body with a right trapezoid cross section; fig. 6 is a schematic spatial structure diagram of a fourth prefabricated plate body with a right trapezoid cross section; fig. 7 is a schematic spatial structure diagram of a fifth prefabricated plate body with a right-angled trapezoid cross section; FIG. 8 is an expanded view of a first prefabricated panel body of a preferred embodiment of the present invention, having an isosceles trapezoid cross-section; FIG. 9 is an expanded view of a second panel body of the preferred embodiment of the present invention having an isosceles trapezoid cross-section; FIG. 10 is a linear floating unit plate formed by connecting prefabricated plate bodies with isosceles trapezoid cross sections; FIG. 11 is a curved floating unit plate formed by connecting prefabricated plate bodies with isosceles trapezoid cross sections; fig. 12 is a schematic view of the spatial structure of a third prefabricated plate body with an isosceles trapezoid cross section; FIG. 13 is a schematic spatial structure diagram of a first embodiment of a connection structure of a preferred embodiment of the present invention; FIG. 14 is a cross-sectional front view structural schematic of FIG. 13; FIG. 15 is a schematic spatial structure diagram of a second embodiment of the connection structure of the preferred embodiment of the present invention; fig. 16 is a first front view structural schematic diagram of a third embodiment of the connecting structure of the preferred embodiment of the present invention; fig. 17 is a second front view structural schematic diagram of the third embodiment of the connecting structure of the preferred embodiment of the present invention; fig. 18 is a front view schematically showing the structure of the fourth embodiment of the connecting structure of the preferred embodiment of the present invention; fig. 19 is a front view schematically illustrating the construction of a prefabricated panel body in a fifth embodiment of the joint structure according to the preferred embodiment of the present invention; fig. 20 is a front view schematically showing the structure of the fifth embodiment of the connecting structure of the preferred embodiment of the present invention.

Description of the figures

10. A floating plate unit block; 101. a first splicing surface; 102. a second splicing surface; 103. an outer end face; 104. an inner end surface; 105. an upper surface; 106. grouting a preformed hole; 107. mounting a preformed hole; 108. connecting the preformed hole; 109. a containing groove; 110. assembling the prepared hole; 11. prefabricating a plate body; 12. a rail bearing platform; 20. a connecting structure; 21. a first set of connection plates; 211. a first connecting plate; 212. a second connecting plate; 213. a first fastener; 22. a concrete joint layer; 23. an elastic material; 27. a second group of connection plates; 28. a third connecting plate group; 29. a second fastener; 32. an anchor rod group; 321. an anchoring rod; 322. anchoring the nut; 34. a concrete connecting column; 37. a positioning support device; 38. a longitudinal force application device; 39. a tooth-biting-shaped connecting structure; 391. a groove; 392. a toothed key; 40. a splicing agent; 43. a first connecting pipe; 430. a slurry outlet; 431. buckling; 44. a second connecting pipe; 441. a card slot; 45. and a gasket.

Detailed Description

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

Referring to fig. 1 to 20, a preferred embodiment of the present invention provides an assembled floating floor, which includes a plurality of floating floor unit blocks 10 and a coupling structure 20. A plurality of floating plate unit blocks 10 are sequentially arranged along the extension direction of the track line. The connection structure 20 is disposed between adjacent floating plate unit blocks 10, and is used to connect a plurality of floating plate unit blocks 10 to form a linear type floating plate unit plate extending along a straight line, or connect a plurality of floating plate unit blocks 10 to form a curved type floating plate unit plate having a curvature.

Compared with the common prefabricated floating slab in the prior art, the assembled floating unit slab is formed by connecting a plurality of floating slab unit blocks 10 which are sequentially distributed along the extension direction of a track through a connecting structure 20, so that on one hand, compared with the common prefabricated floating slab, the floating slab unit blocks 10 with smaller volume and weight are not limited by construction space and transportation and hoisting, and can be transported and hoisted more conveniently and more laborsavingly; on the other hand, the assembled floating unit plate is formed by sequentially connecting a plurality of floating plate unit blocks 10 through the connecting structures 20, so that compared with the existing common prefabricated floating plate, the assembled floating unit plate is generally 3.6-8 m, the assembled floating unit plate can be connected to form a floating unit plate with any length according to the length of an actual track line, the use flexibility is very high, and the assembled floating unit plate is an integral structure formed by connecting a plurality of floating plate unit blocks 10 through the connecting structures 20, so that the floating unit plate is stable and firm in structure, no connecting gap exists between the adjacent floating plate unit blocks 10, the driving safety is very high, and the vibration reduction effect is very good; when the assembled floating unit plates are connected to form the floating slab track bed section, compared with the existing common prefabricated floating slab connected to form the floating slab track bed section, the assembled floating unit plates can be connected by the floating slab unit blocks 10 through the connecting structures 20 to form any length, so that the discontinuous occurrence frequency of the plate end in the floating slab track bed section can be greatly reduced, the driving safety and the vibration damping effect are greatly improved, the service life of a track structure is prolonged, the required maintenance frequency and the maintenance difficulty are reduced, and the maintenance efficiency and the use efficiency of the floating slab track bed section are improved; as shown in fig. 3, 4, 10 and 11, the floating plate unit blocks 10 of the assembled floating unit plate of the present invention may be connected by the connecting structure 20 to form a linear floating unit plate extending along a straight line or a curved floating unit plate having a curvature.

Alternatively, as shown in fig. 3 to 7 and 10 to 12, the floating plate unit block 10 includes a prefabricated plate body 11 and a rail set. The prefabricated plate body 11 comprises a first splicing surface 101 and a second splicing surface 102 which are arranged oppositely, the first splicing surface 101 and the second splicing surface 102 are arranged along the width direction of the floating unit plate, the first splicing surface 101 and two adjacent side surfaces are obliquely arranged to form an inclined plane, and the second splicing surface 102 and the two adjacent side surfaces are perpendicularly arranged to form a vertical plane or the second splicing surface 102 and the first splicing surface 101 are symmetrically arranged along the centerline plane of the floating unit plate block 10. An outer end surface 103 and an inner end surface 104 which are oppositely arranged are respectively connected between the first splicing surface 101 and the second splicing surface 102, the first splicing surface 101, the outer end surface 103, the second splicing surface 102 and the inner end surface 104 form the peripheral side surfaces of the prefabricated plate body 11, and the prefabricated plate body 11 further comprises an upper surface 105 which is used as a supporting platform. The first splicing surface 101 of the prefabricated plate body 11 is connected with the first splicing surface 101 of the adjacent prefabricated plate body 11 through the connecting structure 20 to form a linear floating unit plate extending along a straight line. And/or the first splicing surface 101 of the prefabricated plate body 11 is connected with the second splicing surface 102 of the adjacent prefabricated plate body 11 through the connecting structure 20 to form a curved floating unit plate with bending curvature. The set of rail bearing platforms 12 is attached to the upper surface 105 of the prefabricated panel body 11, the set of rail bearing platforms 12 being used for mounting rail components. Specifically, the prefabricated plate body 11 has a plurality of rows of steel frameworks therein for bearing upper load and resisting the shrinkage deformation of concrete caused by temperature change. The rail bearing table group is used for installing rail parts such as fasteners, steel rails and the like.

Alternatively, in the first embodiment of the connection structure of the present invention, as shown in fig. 13 and 14, the connection structure 20 includes a plurality of first connection plate groups 21 connected between two adjacent prefabricated plate bodies 11, and a concrete connection layer 22 filled between two adjacent prefabricated plate bodies 11. The first connecting plate group 21 comprises a first connecting plate 211 with a fixed end embedded in a first prefabricated plate body 11 and a connecting end extending from a first splicing surface 101, a second connecting plate 212 with a fixed end embedded in a second prefabricated plate body 11 adjacent to the first prefabricated plate body 11 and a connecting end extending from the first splicing surface 101 or a second splicing surface 102, and a first fastener 213 for locking and fixing, wherein the connecting end of the first connecting plate 211 is abutted against the connecting end of the second connecting plate 212, and the first fastener 213 is simultaneously penetrated through the connecting end of the first connecting plate 211 and the connecting end of the second connecting plate 212 to lock and fix the first connecting plate 211 and the second connecting plate 212 which are correspondingly arranged. The concrete connection layer 22 is filled between two adjacent prefabricated panels 11 and covers the connection end of the first connection plate 211, the connection end of the second connection plate 212 and the first fastening member 213. Further, a plurality of sets of the first connection plate groups 21 are sequentially arranged at intervals in the width direction of the floating unit plates. The first fastening member 213 is a coupling bolt. The first and

second connection plates

211 and 212 are both steel plates.

In the embodiment of the first embodiment of the coupling structure of the present invention, as shown in fig. 13 and 14, the fixed ends of the first coupling plate 211 and the second coupling plate 212 are respectively inserted vertically into the corresponding prefabricated plate bodies 11, and the portions of the first coupling plate 211 and the second coupling plate 212 embedded in the prefabricated plate bodies 11 are wrapped with the elastic material 23 to cope with the deformation of concrete caused by temperature change and to prevent the corrosion of the first coupling plate 211 or the second coupling plate 212. Specifically, the elastic material 23 is vulcanized rubber. The connecting ends of the first connecting plate 211 and the second connecting plate 212 vertically extend out of the corresponding prefabricated plate 11 for a certain distance and then are turned to be parallel to the splicing surfaces.

The construction method of the first embodiment of the connection structure of the invention comprises the following steps:

marking the position of the floating plate unit block 10 on the basis of the track, hoisting the first pre-processed floating plate unit block 10 to the position, and adjusting the placing position of the first floating plate unit block 10;

hoisting the second floating plate unit blocks 10 to the positions, and adjusting the placing positions of the second floating plate unit blocks 10 to enable the adjacent first connecting plates 211 and the second connecting plates 212 to be relatively abutted, wherein bolt holes formed in the first connecting plates 211 are aligned with bolt holes formed in the second connecting plates 212;

simultaneously penetrating a first fastener 213 into the connecting end of the first connecting plate 211 and the connecting end of the second connecting plate 212 to lock and fix the correspondingly arranged first connecting plate 211 and second connecting plate 212;

pouring concrete between adjacent floating plate unit blocks 10 to form a concrete connection layer 22 covering the connection end of the first connection plate 211, the connection end of the second connection plate 212, and the first fastener 213;

and sequentially positioning and assembling the rest floating plate unit blocks 10 according to the steps to form the assembled floating unit plate with the connecting structure.

In the first embodiment of the connection structure, the good mechanical properties of the steel plate, the bolt and the concrete are fully utilized, the construction operation is simple, the construction efficiency is high, the adjacent floating plate unit blocks 10 are connected and fastened, and the structural strength is high.

Alternatively, as shown in fig. 15, the second embodiment of the connection structure of the present invention includes a first connection rib with a fixed end embedded in the first prefabricated board 11 and a connection end extending from the first splicing surface 101, a second connection rib with a fixed end embedded in the second prefabricated board 11 adjacent to the first prefabricated board 11 and a connection end extending from the first splicing surface 101 or the second splicing surface 102, a second connection plate group 27 fixed to the connection end of the first connection rib, a third connection plate group 28 fixed to the connection end of the second connection rib, a second fastening member 29 for fastening and fixing, and a concrete connection layer 22 filled between two adjacent prefabricated boards 11. The second connection plate group 27 and the third connection plate group 28 are both arranged along the width direction of the assembled floating unit plate, and the second connection plate group 27 and the third connection plate group 28 are in one-to-one correspondence and are mutually abutted. The second fastening member 29 is simultaneously inserted into the second connection plate group 27 and the third connection plate group 28 to lock and fix the correspondingly arranged second connection plate group 27 and the third connection plate group 28. The concrete joint layer 22 covers the second joint plate group 27, the third joint plate group 28 and the second fastening member 29.

In a specific implementation manner of the second embodiment of the connection structure of the present invention, as shown in fig. 15, the number of the first connection ribs and the number of the second connection ribs are both plural; the second connecting plate group 27 and the third connecting plate group 28 have the same structure, and both comprise two connecting end plates which are oppositely arranged at intervals along the width direction of the floating unit plate, and a plurality of reinforcing ribs which are connected between the two connecting end plates, and the side walls of the connecting end plates which are close to the connecting ends of the connecting ribs are fixed with the corresponding connecting ribs; the connecting end plate and the reinforcing rib are both steel plates; the second fastener 29 is a connecting bolt.

The construction method of the second embodiment of the connection structure of the invention comprises the steps of:

hoisting the second floating plate unit blocks 10 to the positions, and adjusting the placing positions of the second floating plate unit blocks 10 to enable the adjacent second connecting plate groups 27 and the third connecting plate groups 28 to be relatively abutted, wherein bolt holes formed in the second connecting plate groups 27 are aligned with bolt holes formed in the third connecting plate groups 28;

a second fastener 29 is simultaneously inserted into the bolt holes of the second connecting plate group 27 and the third connecting plate group 28, so that the correspondingly arranged second connecting plate group 27 and the third connecting plate group 28 are locked and fixed;

pouring concrete between adjacent floating slab unit blocks 10 to form a concrete connection layer 22 that covers the second connection plate group 27, the third connection plate group 28 and the second fastening member 29;

In the second embodiment of the connection structure, the good mechanical properties of the steel plate, the bolt and the concrete are fully utilized, the construction operation is simple, the construction efficiency is high, the adjacent floating plate unit blocks 10 are connected and fastened, and the structural strength is high.

Optionally, in a third embodiment of the connection structure of the present invention, as shown in fig. 16 and 17, assembly preformed holes 110 are respectively disposed at two ends of the first splicing surface 101 of the prefabricated plate body 11, the assembly preformed holes are perpendicular to the first splicing surface 101 and penetrate through the prefabricated plate body 11 to the outside of the second splicing surface 102, and a recessed grouting preformed hole 106 communicated with the assembly preformed holes is disposed on the upper surface 105 of the prefabricated plate body 11. The connecting structure 20 includes an anchor rod group 32 for relatively tensioning a plurality of prefabricated plate bodies 11 arranged in sequence along the extension direction of the track, the anchor rod group 32 is inserted into the assembly prepared holes of the plurality of prefabricated plate bodies 11 arranged in sequence, and two ends of the anchor rod group 32 respectively extend out of the assembly prepared holes of the prefabricated plate bodies 11 on the corresponding side. The connecting structure 20 further includes a concrete connecting cylinder filled in the assembly prepared hole and covering the correspondingly arranged anchor rod group 32, a concrete connecting column 34 filled in the grouting prepared hole 106 and connected with the correspondingly arranged concrete connecting cylinder, and a concrete connecting layer 22 filled in the overhanging end of the anchor rod group 32 of the prefabricated slab body 11 and connecting the two adjacent prefabricated slab bodies 11 into a whole.

In a specific implementation manner of the third embodiment of the connection structure of the present invention, as shown in fig. 16 and 17, the anchor rod group 32 includes an anchor rod 321 that is inserted into the assembly prepared holes of the plurality of prefabricated plate bodies 11 arranged in sequence and has two ends respectively extending out of the assembly prepared holes of the prefabricated plate bodies 11 on the corresponding sides, and anchor fastening nuts 322 that are respectively screwed onto the outer circles of the two ends of the anchor rod 321. The anchor rod 321 is a tendon.

The invention relates to an assembling connection construction method, which is used for constructing an assembling floating unit plate with a third embodiment of the connecting structure, and comprises the following steps:

hoisting the second floating plate unit blocks 10 to the positions, and adjusting the placing positions of the second floating plate unit blocks 10 to align the assembly reserved holes of the two adjacent floating plate unit blocks 10;

the anchoring rod 321 is arranged in the assembly preformed holes of the plurality of floating plate unit blocks 10 which are arranged in sequence in a penetrating mode, and the part, extending out of the assembly preformed holes, of the anchoring rod 321 is tightly anchored through the anchoring nut 322;

pouring concrete through the grouting preformed holes 106 to form concrete connecting cylinders for coating the anchoring rods 321 and concrete connecting columns 34 for filling the grouting preformed holes 106;

pouring concrete between the overhanging ends of the adjacent anchoring rods 321 to form a concrete connecting layer 22 covering the overhanging ends of the anchoring rods 321, so as to connect the adjacent floating slab unit blocks 10 into a whole;

the remaining floating slab unit blocks 10 are positioned and assembled in sequence according to the above steps to form the assembled floating slab unit having the above-described coupling structure 20.

In the third embodiment of the connection structure, the excellent mechanical properties of the prestressed tendons are fully utilized, the connection structure is simple in structure, the number of the prestressed tendons is small, cracks between the adjacent floating plate unit blocks 10 can be effectively prevented, the construction operation is simple, the construction efficiency is high, the adjacent floating plate unit blocks 10 are connected and fastened, and the structural strength is high.

Alternatively, in a fourth embodiment of the connection structure of the present invention, as shown in fig. 18, the inner end surface 104 and the outer end surface 103 of the prefabricated plate body 11 are respectively provided with a concave connection prepared hole 108. The connecting structure 20 comprises positioning and supporting devices 37 respectively arranged on both sides of the first prefabricated panel body 11, longitudinal force application devices 38 respectively arranged on both sides of the second prefabricated panel body 11 adjacent to the first prefabricated panel body 11, a tooth-biting-shaped connecting structure 39 arranged between the first prefabricated panel body 11 and the second prefabricated panel body 11, and a splicing agent 40 filled between the tooth-biting-shaped connecting structures 39. The positioning and supporting device 37 is fixedly supported on the ground and detachably connected with the connection prepared hole 108 on the corresponding inner end surface 104 or outer end surface 103 for fixedly supporting the precast slab body 11. Longitudinal force application devices 38 are supported on the ground and detachably connected to the connection openings 108 on the corresponding inner or outer end faces 104, 103, and a pushing force is applied by the longitudinal force application devices 38 to the second prefabricated panel 11 against the first prefabricated panel 11 supported on the positioning and supporting devices 37, so that the tooth-like connecting structures 39 are held in a mutually engaging manner by the joining agent 40.

In a specific implementation manner of the fourth embodiment of the connection structure of the present invention, as shown in fig. 18, the tooth-biting-shaped connection structure 39 includes grooves 391 that are arranged on the first splicing surface 101 of the prefabricated board body 11 and are sequentially arranged along the width direction of the first splicing surface 101, and tooth keys 392 that are arranged on the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated board body 11 and are matched with the grooves 391. Preferably, in order to enhance the connection performance, when the floating plate unit block 10 is prefabricated and shipped, the tooth keys 392 and the grooves 391 may also be prefabricated steel plates and integrally formed with the prefabricated plate body 11, and the jointing agent 40 has better jointing performance on the steel plates. The jointing agent 40 is epoxy resin glue. The positioning and supporting device 37 comprises a supporting frame erected from steel plates and locking screws for fixing the supporting frame to the prefabricated plate body 11 or the ground. The longitudinal force applying device 38 is an oil jack or an electrically controlled hydraulic jack.

The construction method for assembling connection is used for constructing the assembled floating unit plate with the connection structure of the fourth embodiment of the invention, and comprises the following steps:

hoisting the second floating plate unit blocks 10 to the positions, and adjusting the placing positions of the second floating plate unit blocks 10 to form a tooth-biting-shaped connecting structure 39 between two adjacent floating plate unit blocks 10, namely, the groove 391 on the first splicing surface 101 and the tooth keys 392 on the adjacent first splicing surface 101 or second splicing surface 102 are mutually engaged;

installing a positioning support device 37 through the connection prepared hole 108 of the floating plate unit block 10 to fixedly support the floating plate unit block 10 on the ground, and installing a longitudinal force application device 38 through the connection prepared hole 108 of the adjacent floating plate unit block 10;

respectively smearing splicing agents 40 on the connecting surfaces of the tooth-biting-shaped connecting structures 39, or pouring the splicing agents 40 between the connecting surfaces of the tooth-biting-shaped connecting structures 39, namely respectively smearing epoxy resin glue on the connecting surfaces of the grooves 391 and the tooth keys 392, or pouring epoxy resin glue between the grooves 391 and the tooth keys 392;

the longitudinal force application device 38 is started to apply thrust force to make the tooth-biting connecting structures 39 mutually clenched by the splicing agent 40, so that the splicing agent 40 is rapidly cured under pressure, and good splicing performance is provided;

the positioning support device 37 and the longitudinal urging device 38 are removed.

The remaining floating slab unit blocks 10 are positioned and assembled in sequence according to the above steps to form an assembled floating slab unit having the coupling structure 20 of claim 6.

In the fourth embodiment of the connection structure, the splicing mode fully utilizes the size structure property of mutual matching and coupling of the tooth keys and the grooves and the physical property of assisting connection of the splicing agent, can easily realize accurate positioning and splicing of the adjacent prefabricated plate bodies 11 without additional devices, fully utilizes the special structure of the tooth key grooves and the strength of the splicing agent as the guarantee of good shear bearing performance, and has the advantages of simple construction operation, high construction efficiency, fastening connection between the adjacent floating plate unit blocks 10 and high structural strength.

Alternatively, in a fifth embodiment of the connection structure according to the present invention, as shown in fig. 19 and 20, a perfusion chamber is provided between two adjacent prefabricated plate bodies 11. The connecting structure 20 includes a first connecting pipe 43 pre-buried in the first prefabricated plate body 11, and a second connecting pipe 44 pre-buried in the second prefabricated plate body 11 adjacent to the first prefabricated plate body 11, the first connecting pipe 43 and the second connecting pipe 44 are hollow pipes with both ends communicated, inflow ends of the first connecting pipe 43 and the second connecting pipe 44 are respectively communicated with the corresponding upper surface 105, outflow ends of the first connecting pipe 43 and the second connecting pipe 44 are respectively sleeved and clamped in the filling cavity after being extended out by the corresponding first splicing surface 101 or the corresponding second splicing surface 102, and side walls of the outflow ends of the first connecting pipe 43 and the second connecting pipe 44 are respectively provided with a slurry outlet 430 communicated with the filling cavity. The connecting structure 20 further comprises a concrete connecting column 34 filled in the first connecting pipe 43 and the second connecting pipe 44, and a concrete connecting layer 22 formed by concrete overflowing from the grout outlet 430 to the pouring cavity, wherein the concrete connecting layer 22 covers the outflow end of the first connecting pipe 43 or the second connecting pipe 44.

In the fifth embodiment of the coupling structure of the present invention, as shown in fig. 19 and 20, the outer diameter of the first coupling pipe 43 is smaller than the outer diameter of the second coupling pipe 44, the outer surface of the first coupling pipe 43 is provided with the catch 431, the inner surface of the second coupling pipe 44 is provided with the catching groove 441 matched with the catch 431, and the catch 431 and the catching groove 441 can be coupled only when the angle at which the first coupling pipe 43 is inserted into the second coupling pipe 44 is correct. The first connection pipe 43 and the second connection pipe 44 are coated with an elastic material 23 for coping with the deformation of the concrete caused by the temperature influence and preventing the first connection pipe 43 and the second connection pipe 44 from being corroded. The inflow ends of the first connecting pipe 43 and the second connecting pipe 44 are perpendicular to the upper surface of the prefabricated plate body 11, and the outflow ends of the first connecting pipe and the second connecting pipe are perpendicular to the inflow ends. The first splicing surface 101 of the prefabricated plate body 11 and the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated plate body 11 are respectively provided with a containing groove 109 which is arranged in a matched manner, the two containing grooves 109 are matched to form a filling cavity, the first splicing surface 101 of the prefabricated plate body 11 and the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated plate body 11 are respectively provided with a sealing gasket 45 with a matched effect, and the sealing gasket 45 is used for sealing a gap between the adjacent prefabricated plate bodies 11.

The construction method for assembling and connecting is used for constructing the assembled floating unit plate with the fifth embodiment of the connecting structure, and comprises the following steps:

hoisting the second floating plate unit block 10 to the above position, and adjusting the placing position of the second floating plate unit block 10 to make the first connecting pipe 43 and the second connecting pipe 44 relatively arranged;

the adjacent floating plate unit blocks 10 are pushed to approach each other so that the first connecting pipe 43 and the second connecting pipe 44 can be sleeved and clamped with each other, it should be noted that the design of the buckle 431 and the clamp groove 441 makes the first connecting pipe 43 and the second connecting pipe 44 extend into each other only at correct angles, thereby avoiding the wrong direction of the floating plate unit blocks during assembly, and thus completing the positioning of the floating plate unit blocks 10, at this time, the sealing gasket 45 on the prefabricated plate body 11 and the sealing gasket 45 on the adjacent prefabricated plate body 11 are pressed against each other, and further combining the two accommodating grooves 109 of the adjacent floating plate unit blocks 10 into a complete sealed filling cavity;

pouring concrete from the inflow end of the first connecting pipe 43 or the second connecting pipe 44 to form a concrete connecting column 34 for filling the first connecting pipe 43 and the second connecting pipe 44 and a concrete connecting layer 22 for filling the pouring cavity and coating the outflow ends of the first connecting pipe 43 and the second connecting pipe 44, wherein during pouring, the concrete is poured from the inflow end of any connecting pipe, and because the first connecting pipe 43 and the second connecting pipe 44 are both provided with the grout outlet 430, according to the principle of a communicating device, the sealed pouring cavity is gradually filled with concrete, and then the concrete is emitted from the inflow end of the other connecting pipe, which indicates that the pouring cavity is filled with concrete, and the assembly of the floating plate unit blocks 10 can be completed after the concrete is molded;

the remaining floating slab unit blocks 10 are positioned and assembled in sequence according to the above steps to form an assembled floating slab unit having the coupling structure 20 of claim 7.

In the fifth embodiment of the connection structure, the assembling mode adopts the mode of butt joint and assembling the adjacent precast slab unit blocks by adopting large-small pipelines, buckles and clamping grooves with different outer diameters, the design has the foolproof function, the adjacent precast slab unit blocks can be successfully assembled only by correct positioning angles, and the positioning and assembling work is simple and easy; because the shearing force of the splicing surfaces reaches the maximum near the middle parts of the splicing surfaces, the splicing surfaces are most likely to crack, so that a concrete layer is formed by adopting a mode of filling cavities to strengthen the shearing resistance of adjacent precast slab unit blocks, and after the connection is finished, the elastic sealing gaskets at the positions of the splicing surfaces can also be regarded as expansion joints, so that cracks caused by the shrinkage and creep of the concrete in the extending length direction of a track line at the outer sides of the slab bodies are prevented.

It should be noted that five embodiments of the connection structure of the present invention can be flexibly cross-combined for use as required, such as: the fourth embodiment of the connection structure of the invention can also be combined with the third embodiment of the connection structure of the invention for use, which has the advantages that the prestressed tendons of the third embodiment ensure that the splicing surfaces of the adjacent floating plate unit blocks are always stressed, the splicing performance deterioration caused by the reciprocating stress action borne by the interface splicing agent is avoided, the stress condition of the floating unit plates is optimized, and the service life of the floating unit plates is prolonged. The above embodiment is only a concrete embodiment of the assembly mode, and the assembly mode of various floating plate unit blocks is flexibly combined in a crossing way, so that not only can the shearing force be more reliably transmitted and the stress condition of the floating plate unit blocks be optimized, but also the integrity of the floating plate unit blocks can be further enhanced, and the applicability and the service life of the system can be improved.

Alternatively, in a first embodiment of the prefabricated plate body according to the invention, as shown in fig. 1 and 2, the prefabricated plate body 11 has a right-angled trapezoidal cross-section in the horizontal direction. The first splicing face 101 constitutes the hypotenuse of the right trapezoid. The second splicing surface 102 forms the legs of a right-angled trapezoid. The outer end surface 103 and the inner end surface 104 form the upper top and lower bottom edges of a right trapezoid, respectively. In the first embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated board body 11 is spliced with the first splicing surface 101 of the second prefabricated board body 11, a linear floating unit plate extending along a straight line can be formed, as shown in fig. 3, and the end of the linear floating unit plate can be a right angle, so that the floating unit plate is connected with the adjacent floating unit plate in an assembling manner; in the first embodiment of the present invention, when the first splicing surface 101 of the first prefabricated plate body 11 and the second splicing surface 102 of the second prefabricated plate body 11 are spliced and connected, a curved floating unit plate with a bending curvature may be formed, as shown in fig. 4, and the curved floating unit plate is suitable for a floating slab track bed section with a large turning radius, and by setting an oblique crossing angle between the first splicing surface 101 and the two adjacent side surfaces, the bending radian of the curved floating unit plate may be changed to adapt to a floating slab track bed section with any turning radius.

In the first embodiment of the prefabricated panel body according to the present invention, for a floating unit panel in a curved section, when the height of the track foundation for installing and supporting the floating unit panel outside the curve is not high enough, the prefabricated panel body 11 may be further optimally designed to meet the requirement of the height, that is, the prefabricated panel body 11 further includes a lower bottom surface disposed opposite to the upper surface 105. The lower bottom surface is an inclined surface which gradually inclines towards the lower side from the inner end surface 104 to the outer end surface 103, as shown in fig. 2, the requirement of any curve superelevation can be met by flexibly changing the horizontal inclination of the lower bottom surface of the prefabricated plate body 11, and the adjustment is flexible and reliable.

Further, in the first embodiment of the prefabricated plate body according to the present invention, the upper surface 105 of the prefabricated plate body 11 is further provided with a set of mounting holes which are perpendicular to the upper surface 105 and penetrate through the prefabricated plate body 11. The reserved hole group is used for installing a vibration isolator for vibration isolation and noise reduction.

Preferably, as shown in fig. 5, in the second embodiment of the precast slab body according to the first embodiment of the present invention, the rail support platform group is a group and is disposed at a middle position in the longitudinal direction of the precast slab body 11, the rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are disposed at intervals along the transverse direction of the precast slab body 11. The number of the installation reserved hole groups is one group, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are respectively arranged at two ends of each rail bearing platform group and are respectively close to the inner end face 104 and the outer end face 103, namely the two installation reserved holes 107 are respectively arranged at the outer sides of the two rail bearing platforms 12 of the corresponding rail bearing platform group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is shorter along the longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively one group, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.

Preferably, in the third embodiment of the first embodiment of the prefabricated slab body, as shown in fig. 6, the number of the rail bearing table groups is multiple, the multiple rail bearing table groups are sequentially arranged at intervals along the longitudinal direction of the prefabricated slab body 11, each rail bearing table group includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated slab body 11. The mounting reserved hole groups and the rail bearing table groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes 107, the two mounting reserved holes 107 are respectively arranged at two ends of the corresponding rail bearing table group and are respectively arranged close to the inner end face 104 and the outer end face 103, namely the two mounting reserved holes 107 are respectively arranged at the outer sides of the two rail bearing tables 12 of the corresponding rail bearing table group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed and the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.

Preferably, as shown in fig. 7, in the fourth specific embodiment of the first embodiment of the prefabricated slab body according to the present invention, the number of the rail bearing table groups is multiple and even, the multiple rail bearing table groups are sequentially arranged at intervals along the longitudinal direction of the prefabricated slab body 11, each rail bearing table group includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated slab body 11. The number of the installation reserved hole groups is half of the number of the rail bearing table groups, the installation reserved hole groups are arranged between every two adjacent rail bearing table groups, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are arranged at intervals along the transverse direction of the prefabricated plate body 11, and the two installation reserved holes 107 are respectively close to the inner end face 104 and the outer end face 103 which are correspondingly arranged. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups and even numbers, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced. Compared with the fourth embodiment of the first embodiment of the prefabricated plate body, when the number of the sets of the track supporting platforms is the same, the number of the sets of the mounting reserved holes in the third embodiment is larger than that in the fourth embodiment, so that an encrypted plate type is formed, and the rigidity of the track is enhanced to improve the driving safety and stability.

Alternatively, in a second embodiment of the prefabricated panel body according to the invention, as shown in fig. 8 and 9, the prefabricated panel body 11 has a horizontal cross section in the shape of an isosceles trapezoid. The first splicing surface 101 and the second splicing surface 102 respectively form two equal waist edges of an isosceles trapezoid. The inner end surface 104 forms the upper top edge of an isosceles trapezoid. The outer end surface 103 constitutes the lower base of the isosceles trapezoid. In the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated board body 11 is spliced with the first splicing surface 101 of the second prefabricated board body 11, a linear floating unit plate extending along a straight line can be formed, as shown in fig. 10, and the end of the linear floating unit plate can be a right angle, so that the floating unit plate is connected with the adjacent floating unit plate in an assembling manner; in the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated plate 11 is spliced and connected with the second splicing surface 102 of the second prefabricated plate 11, a curved floating unit plate with a bending curvature may be formed, as shown in fig. 11, and the curved floating unit plate is suitable for a floating slab track bed section with a large turning radius, and by setting an included angle between the first splicing surface 101 and the floating unit plate in the transverse direction, the bending radian of the curved floating unit plate may be changed to adapt to a floating slab track bed section with any turning radius.

In the first embodiment of the second embodiment of the prefabricated panel body according to the present invention, for a floating unit panel in a curved section, when the height of the track foundation for installing and supporting the floating unit panel outside the curve is not high enough, the prefabricated panel body 11 may be further optimally designed to meet the requirement of the height, that is, the prefabricated panel body 11 further includes a lower bottom surface disposed opposite to the upper surface 105. The lower bottom surface is a slope gradually inclined outward from the inner end surface 104 to the outer end surface 103. As shown in FIG. 9, the requirement of any curve superelevation can be met by flexibly changing the inclination of the lower bottom surface of the prefabricated plate body 11 in the transverse direction, and the adjustment is flexible and reliable.

Further, in the second embodiment of the prefabricated plate body according to the present invention, the upper surface 105 of the prefabricated plate body 11 is further provided with a set of mounting holes which are perpendicular to the upper surface 105 and penetrate through the prefabricated plate body 11. The reserved hole group is used for installing a vibration isolator for vibration isolation and noise reduction.

Preferably, in the second embodiment of the prefabricated slab body according to the second embodiment of the present invention, not shown, the rail support platform group is a group and is disposed at a middle position in the longitudinal direction of the prefabricated slab body 11, the rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are disposed at intervals along the transverse direction of the prefabricated slab body 11. The number of the installation reserved hole groups is one group, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are respectively arranged at two ends of each rail bearing platform group and are respectively close to the inner end face 104 and the outer end face 103, namely the two installation reserved holes 107 are respectively arranged at the outer sides of the two rail bearing platforms 12 of the corresponding rail bearing platform group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is shorter along the longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively one group, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.

Preferably, in a third specific embodiment of the second embodiment of the prefabricated slab body according to the present invention, as shown in fig. 12, the number of the rail bearing table sets is multiple, the multiple rail bearing table sets are sequentially arranged at intervals along the longitudinal direction of the prefabricated slab body 11, each rail bearing table set includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated slab body 11. The mounting reserved hole groups and the rail bearing table groups are arranged in a one-to-one correspondence mode, each mounting reserved hole group comprises two mounting reserved holes 107, the two mounting reserved holes 107 are respectively arranged at two ends of the corresponding rail bearing table group and are respectively close to the inner end face 104 and the outer end face 103, namely the two mounting reserved holes 107 are respectively arranged at the outer sides of the two rail bearing tables 12 of the corresponding rail bearing table group and are respectively close to the corresponding inner end face 104 or the outer end face 103. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed and the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced.

Preferably, in a fourth embodiment of the second embodiment of the prefabricated slab body according to the present invention, not shown in the drawings, the number of the rail bearing table groups is multiple and even, the multiple rail bearing table groups are sequentially arranged at intervals along the longitudinal direction of the prefabricated slab body 11, each rail bearing table group includes two rail bearing tables 12, and the two rail bearing tables 12 are arranged at intervals along the transverse direction of the prefabricated slab body 11. The number of the installation reserved hole groups is half of the number of the rail bearing table groups, the installation reserved hole groups are arranged between every two adjacent rail bearing table groups, each installation reserved hole group comprises two installation reserved holes 107, the two installation reserved holes 107 are arranged at intervals along the transverse direction of the prefabricated plate body 11, and the two installation reserved holes 107 are respectively close to the inner end face 104 and the outer end face 103 which are correspondingly arranged. When the prefabricated plate body 11 is longer along longitudinal length, the number of the rail bearing table groups and the number of the mounting reserved hole groups are respectively multiple groups and even numbers, and the group number of the rail bearing table groups and the number of each group are set, and the group number of the mounting reserved hole groups and the number of each group are set, so that the prefabricated plate body 11 is uniformly stressed, the driving safety and stability are enhanced, the vibration damping effect is improved, and the noise is reduced. Compared with the fourth embodiment of the second embodiment of the present invention, when the number of sets of track-supporting platform sets is the same, the number of sets of installation reserved holes in the third embodiment is greater than that in the fourth embodiment, so as to form an encrypted plate type, and enhance the rigidity of the track to improve the driving safety and stability.

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

1. An assembled floating unit plate is characterized by comprising a plurality of floating unit plate blocks (10) and connecting structures (20);

the floating plate unit blocks (10) are sequentially arranged along the extension direction of a track;

the connecting structure (20) is arranged between the adjacent floating plate unit blocks (10) and is used for connecting the plurality of floating plate unit blocks (10) to form a linear type floating unit plate extending along a straight line or connecting the plurality of floating plate unit blocks (10) to form a curved type floating unit plate with bending curvature.

2. The assembled floating unit panel of claim 1,

the floating plate unit block (10) comprises a prefabricated plate body (11) and a rail bearing table group;

the prefabricated plate body (11) comprises a first splicing surface (101) and a second splicing surface (102) which are oppositely arranged, the first splicing surface (101) and the second splicing surface (102) are arranged along the width direction of the floating unit plate, the first splicing surface (101) and two adjacent side surfaces are obliquely arranged to form an inclined surface, the second splicing surface (102) and the two adjacent side surfaces are vertically arranged to form a vertical surface, or the second splicing surface (102) and the first splicing surface (101) are symmetrically arranged along the centerline plane of the floating unit plate block (10); an outer end surface (103) and an inner end surface (104) which are oppositely arranged are respectively connected between the first splicing surface (101) and the second splicing surface (102), the first splicing surface (101), the outer end surface (103), the second splicing surface (102) and the inner end surface (104) form the peripheral side surfaces of the prefabricated plate body (11), and the prefabricated plate body (11) further comprises an upper surface (105) used as a supporting platform;

the first splicing surface (101) of the prefabricated plate body (11) and the first splicing surface (101) of the adjacent prefabricated plate body (11) are connected through the connecting structure (20) to form a linear floating unit plate extending along a straight line; and/or

The first splicing surface (101) of the prefabricated plate body (11) and the second splicing surface (102) of the adjacent prefabricated plate body (11) are connected through the connecting structure (20) to form a curve-type floating unit plate with bending curvature;

the rail bearing table (12) set is connected to the upper surface (105) of the prefabricated plate body (11), and the rail bearing table (12) set is used for installing rail parts.

3. The assembled floating unit panel of claim 2,

the connecting structure (20) comprises a plurality of groups of first connecting plate groups (21) connected between two adjacent prefabricated plate bodies (11) and a concrete connecting layer (22) filled between two adjacent prefabricated plate bodies (11);

the first connecting plate group (21) comprises a first connecting plate (211) with a fixed end embedded in a first prefabricated plate body (11) and a connecting end extending out of the first splicing surface (101), a second connecting plate (212) with a fixed end embedded in a second prefabricated plate body (11) adjacent to the first prefabricated plate body (11) and a connecting end extending out of the first splicing surface (101) or the second splicing surface (102), and a first fastener (213) for locking and fixing, the connecting end of the first connecting plate (211) and the connecting end of the second connecting plate (212) are mutually abutted, the first fastener (213) is simultaneously arranged in the connecting end of the first connecting plate (211) and the connecting end of the second connecting plate (212) in a penetrating way, so as to lock and fix the first connecting plate (211) and the second connecting plate (212) which are correspondingly arranged;

the concrete connecting layer (22) is filled between two adjacent prefabricated plate bodies (11) and covers the connecting end of the first connecting plate (211), the connecting end of the second connecting plate (212) and the first fastening piece (213).

4. The assembled floating unit panel of claim 2,

the connecting structure (20) comprises a first connecting rib, a second connecting plate group (27), a third connecting plate group (28), a second fastening piece (29) and a concrete connecting layer (22), wherein the fixed end of the first connecting rib is embedded in a first prefabricated plate body (11), the connecting end of the first connecting rib extends out of the first splicing surface (101), the fixed end of the second connecting rib is embedded in a second prefabricated plate body (11) adjacent to the first prefabricated plate body (11), and the connecting end of the second connecting rib extends out of the first splicing surface (101) or the second splicing surface (102), the second connecting plate group (27) is fixed to the connecting end of the first connecting rib, the third connecting plate group (28) is fixed to the connecting end of the second connecting rib, the second fastening piece (29) is used for locking and fixing, and the concrete connecting layer (22);

the second connecting plate group (27) and the third connecting plate group (28) are arranged along the width direction of the assembled floating unit plate, and the second connecting plate group (27) and the third connecting plate group (28) are in one-to-one correspondence and are mutually abutted;

the second fastening piece (29) is simultaneously arranged in the second connecting plate group (27) and the third connecting plate group (28) in a penetrating manner so as to lock and fix the second connecting plate group (27) and the third connecting plate group (28) which are correspondingly arranged;

the concrete connection layer (22) covers the second connection plate group (27), the third connection plate group (28) and the second fastening piece (29).

5. The assembled floating unit panel of claim 2,

assembly preformed holes (110) are respectively formed in two ends of the first splicing surface (101) of the prefabricated plate body (11), the assembly preformed holes are perpendicular to the first splicing surface (101) and penetrate through the prefabricated plate body (11) to the outside of the second splicing surface (102), and a concave grouting preformed hole (106) communicated with the assembly preformed holes is formed in the upper surface (105) of the prefabricated plate body (11);

the connecting structure (20) comprises an anchor rod group (32) which is used for relatively tensioning a plurality of prefabricated plate bodies (11) which are sequentially arranged along the extension direction of a track, the anchor rod group (32) is arranged in the assembly preformed holes of the prefabricated plate bodies (11) which are sequentially arranged in a penetrating manner, and two ends of the anchor rod group (32) respectively extend out of the assembly preformed holes of the prefabricated plate bodies (11) on the corresponding side;

the connecting structure (20) further comprises a concrete connecting cylinder filled in the assembly preformed hole and coated with the corresponding anchoring rod group (32), a concrete connecting column (34) filled in the grouting preformed hole (106) and connected with the corresponding concrete connecting cylinder, and a concrete connecting layer (22) filled in the outward extending end of the anchoring rod group (32) of the prefabricated plate body (11) and used for connecting the two adjacent prefabricated plate bodies (11) into a whole.

6. The assembled floating unit panel of claim 2,

the inner end surface (104) and the outer end surface (103) of the prefabricated plate body (11) are respectively provided with an inwards concave connection preformed hole (108);

the connecting structure (20) comprises positioning and supporting devices (37) which are respectively arranged on two sides of a first prefabricated plate body (11), longitudinal force application devices (38) which are respectively arranged on two sides of a second prefabricated plate body (11) adjacent to the first prefabricated plate body (11), a tooth-biting-shaped connecting structure (39) which is arranged between the first prefabricated plate body (11) and the second prefabricated plate body (11), and a splicing agent (40) which is filled between the tooth-biting-shaped connecting structures (39);

the positioning and supporting device (37) is fixedly supported on the ground and detachably connected with the connection preformed hole (108) on the corresponding inner end surface (104) or outer end surface (103) for fixedly supporting the prefabricated plate body (11);

the longitudinal force application device (38) is supported on the ground and is detachably connected with the connection preformed hole (108) on the corresponding inner end surface (104) or the outer end surface (103), and a pushing force which is abutted to the first prefabricated plate body (11) supported on the positioning and supporting device (37) is applied to the second prefabricated plate body (11) through the longitudinal force application device (38), so that the tooth-shaped connecting structures (39) are mutually bitten and fixed through a splicing agent (40).

7. The assembled floating unit panel of claim 2,

a perfusion cavity is arranged between two adjacent prefabricated plate bodies (11);

the connecting structure (20) comprises a first connecting pipe (43) pre-embedded in a first prefabricated plate body (11) and a second connecting pipe (44) pre-embedded in a second prefabricated plate body (11) adjacent to the first prefabricated plate body (11), the first connecting pipe (43) and the second connecting pipe (44) are hollow pipes with two communicated ends, and the inflow ends of the first connecting pipe (43) and the second connecting pipe (44) are respectively communicated with the corresponding upper surface (105), the outflow ends of the first connecting pipe (43) and the second connecting pipe (44) respectively extend out of the corresponding first splicing surface (101) or the second splicing surface (102) and then are sleeved and clamped in the perfusion cavity, the side walls of the outflow ends of the first connecting pipe (43) and the second connecting pipe (44) are respectively provided with a pulp outlet (430) communicated with the perfusion cavity;

the connecting structure (20) further comprises a concrete connecting column (34) filled in the first connecting pipe (43) and the second connecting pipe (44) and a concrete connecting layer (22) formed by concrete overflowing from the grout outlet hole (430) to the pouring cavity, and the concrete connecting layer (22) coats the outflow end of the first connecting pipe (43) or the second connecting pipe (44).

8. A construction method for assembling connection for constructing an assembled floating unit panel having the connection structure (20) of claim 5, comprising the steps of:

marking the position of the floating plate unit block (10) on the basis of the track, hoisting a first floating plate unit block (10) which is processed in advance to the position, and adjusting the placing position of the first floating plate unit block (10);

hoisting the second floating plate unit blocks (10) to the positions, and adjusting the placing positions of the second floating plate unit blocks (10) to align the assembly reserved holes of two adjacent floating plate unit blocks (10);

the anchor rod group (32) is arranged in the assembly preformed holes of the plurality of floating plate unit blocks (10) which are arranged in sequence in a penetrating way, and the part of the anchor rod group (32) extending out of the assembly preformed holes is tightly anchored;

pouring concrete through the grouting preformed holes (106) to form a concrete connecting cylinder for coating the anchor rod group (32) and a concrete connecting column (34) for filling the grouting preformed holes (106);

pouring concrete between the overhanging ends of adjacent anchor rod groups (32) to form a concrete connecting layer (22) covering the overhanging ends of the anchor rod groups (32);

and sequentially positioning and assembling the rest of the floating plate unit blocks (10) according to the steps to form the assembled floating unit plate with the connecting structures (20).

9. A construction method for assembling connection for constructing an assembled floating unit panel having the connection structure (20) of claim 6, comprising the steps of:

hoisting the second floating plate unit blocks (10) to the positions, and adjusting the placing positions of the second floating plate unit blocks (10) to form a tooth-biting-shaped connecting structure (39) between two adjacent floating plate unit blocks (10);

installing a positioning support device (37) through a connection preformed hole (108) of a floating plate unit block (10) to fixedly support the floating plate unit block (10) on the ground, and installing a longitudinal force application device (38) through the connection preformed hole (108) of the adjacent floating plate unit block (10);

respectively smearing splicing agents (40) on the connecting surfaces of the tooth-biting-shaped connecting structures (39), or pouring the splicing agents (40) between the connecting surfaces of the tooth-biting-shaped connecting structures (39);

starting a longitudinal force application device (38) to apply thrust force so that the tooth-biting-shaped connecting structures (39) are mutually clamped and fixed through the splicing agent (40);

disassembling the positioning support device (37) and the longitudinal force application device (38);

sequentially positioning and assembling the remaining floating plate unit blocks (10) according to the above steps to form an assembled floating plate unit having the connecting structure (20) of claim 6.

10. A construction method for assembling connection for constructing an assembled floating unit panel having the connection structure (20) of claim 7, comprising the steps of:

hoisting the second floating plate unit block (10) to the position, and adjusting the placing position of the second floating plate unit block (10) to enable the first connecting pipe (43) and the second connecting pipe (44) to be oppositely arranged;

pushing the adjacent floating plate unit blocks (10) to approach each other so that the first connecting pipe (43) and the second connecting pipe (44) are sleeved and clamped with each other;

pouring concrete from the inflow end of the first connecting pipe (43) or the second connecting pipe (44) to form a concrete connecting column (34) for filling the first connecting pipe (43) and the second connecting pipe (44) and a concrete connecting layer (22) for filling the pouring cavity and coating the outflow ends of the first connecting pipe (43) and the second connecting pipe (44);

sequentially positioning and assembling the remaining floating plate unit blocks (10) according to the above steps to form an assembled floating plate unit having the connecting structure (20) of claim 7.