Assembled floating unit plate and assembly connection construction method

Abstract

The present invention discloses an assembled floating unit plate and an assembly connection construction method, including a plurality of floating plate unit blocks and a connection structure. The plurality of floating plate unit blocks are arranged in sequence along the extension direction of the track line. The connection structure is arranged between adjacent floating plate unit blocks, so as to connect the plurality of floating plate unit blocks to form a linear floating unit plate extending along a straight line, or to connect the plurality of floating plate unit blocks to form a curved floating unit plate with a curved curvature. Compared with the common prefabricated floating plate in the prior art, the floating unit plate of the present invention is not limited by the construction space and transportation and hoisting, and can be transported and hoisted more conveniently and labor-savingly; it can be connected to form a floating unit plate of any length according to the actual length of the track line, and has a very high flexibility in use, a stable and firm floating unit plate structure, no connection gap between adjacent floating plate unit blocks, very high driving safety, and a very good vibration reduction effect.

Description

Technical Field

[0001] The present invention relates to the field of rail transportation, and in particular, to an assembled floating unit plate. In addition, the present invention also relates to an assembled and connected construction method of the assembled floating unit plate. Background Art

[0002] The floating slab track bed is currently the most effective structure for reducing vibration and noise in rail transit. Compared with other vibration-reducing tracks, it has significant advantages such as good vibration reduction effect, low later operation and maintenance costs, and long service life. The floating slab track bed is generally constructed by cast-in-place or prefabricated installation. However, due to the complex structure of the cast-in-place floating slab, the quality of on-site pouring construction is difficult to guarantee, and it is easy to have problems such as poor appearance, exposed steel bars, surface cracks, and large deviations in track geometric dimensions.

[0003] Although ordinary prefabricated floating slabs are suitable for mass production in factories and have fast construction speed, the cross-section of the tunnel construction site is small. Due to the limitations of construction space and transportation and hoisting, the length of a single ordinary prefabricated floating slab is generally 3.6m to 8m, which cannot reach the 25m to 30m of the cast-in-place floating slab. The shorter length and smaller mass reduce the vibration reduction effect of ordinary prefabricated floating slabs. Ordinary prefabricated floating slabs are affected by their length. In the actual construction process, the prefabricated floating slabs need to be connected into a floating slab track section of the required length through the shear hinges set between the two adjacent prefabricated floating slabs. Since the ends of the adjacent prefabricated floating slabs are discontinuous and connecting fasteners are required for connection, they are easily damaged by the impact during work and the plate ends are discontinuous, resulting in poor driving safety and poor vibration reduction effect. In addition, the track structure has a short service life and requires frequent maintenance, which has high maintenance costs and affects the efficiency of the floating slab track section. Summary of the invention

[0004] The invention provides an assembled floating unit plate and an assembled connection construction method to solve the technical problems of existing common prefabricated plates, such as limited construction space and transportation and hoisting, poor driving safety, poor vibration reduction effect and high maintenance cost.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An assembled floating unit plate comprises a plurality of floating plate unit blocks and a connection structure; the plurality of floating plate unit blocks are arranged in sequence along the extension direction of a track line; the connection structure is arranged between adjacent floating plate unit blocks, so as to connect the plurality of floating plate unit blocks to form a linear floating unit plate extending along a straight line, or to connect the plurality of floating plate unit blocks to form a curved floating unit plate with a curved curvature.

[0007] Furthermore, the floating plate unit block includes a prefabricated plate body and a rail support platform group; the prefabricated plate body includes a first splicing surface and a second splicing surface arranged oppositely, the first splicing surface and the second splicing surface are arranged along the width direction of the floating plate unit, and the first splicing surface is arranged obliquely with the adjacent two side surfaces to form an inclined surface, and the second splicing surface is arranged perpendicularly with the adjacent two side surfaces to form a vertical surface or the second splicing surface and the first splicing surface are arranged symmetrically along the center line plane of the floating plate unit block; the first splicing surface and the second splicing surface are respectively connected with an outer end surface and an inner end surface arranged oppositely, and the first splicing surface The outer end surface, the second splicing surface and the inner end surface constitute the four sides of the prefabricated panel body, and the prefabricated panel body also includes an upper surface used as a supporting platform; the first splicing surface of the prefabricated panel body is connected with the first splicing surface of the adjacent prefabricated panel body through a connecting structure to form a straight floating unit panel extending along a straight line; and / or the first splicing surface of the prefabricated panel body is connected with the second splicing surface of the adjacent prefabricated panel body through a connecting structure to form a curved floating unit panel with a curved curvature; the rail support platform group is connected to the upper surface of the prefabricated panel body, and the rail support platform group is used to install the track component.

[0008] Furthermore, the connection structure includes multiple groups of first connection plate groups connected between two adjacent prefabricated panels, and a concrete connection layer filled between two adjacent prefabricated panels; the first connection plate group includes a first connection plate whose fixed end is buried in the first prefabricated panel and whose connection end extends from the first splicing surface, a second connection plate whose fixed end is buried in the second prefabricated panel adjacent to the first prefabricated panel and whose connection end extends from the first splicing surface or the second splicing surface, and a first fastener for locking and fixing, the connection end of the first connection plate and the connection end of the second connection plate abut against each other, and the first fastener is simultaneously passed through the connection end of the first connection plate and the connection end of the second connection plate to lock and fix the correspondingly arranged first connection plate and second connection plate; the concrete connection layer is filled between two adjacent prefabricated panels and covers the connection end of the first connection plate, the connection end of the second connection plate and the first fastener.

[0009] Furthermore, the connection structure includes a first connecting rib whose fixed end is buried in the first prefabricated panel and whose connecting end extends from the first splicing surface, a second connecting rib whose fixed end is buried in the second prefabricated panel adjacent to the first prefabricated panel and whose connecting end extends from the first splicing surface or the second splicing surface, a second connecting plate group fixed to the connecting end of the first connecting rib, a third connecting plate group fixed to the connecting end of the second connecting rib, a second fastener for locking and fixing, and a concrete connecting layer filled between two adjacent prefabricated panels; the second connecting plate group and the third connecting plate group are arranged along the width direction of the assembled floating unit panel, and the second connecting plate group and the third connecting plate group correspond to each other one by one and abut against each other; the second fastener is simultaneously penetrated in the second connecting plate group and the third connecting plate group to lock and fix the correspondingly arranged second connecting plate group and third connecting plate group; the concrete connecting layer covers the second connecting plate group, the third connecting plate group and the second fastener.

[0010] Furthermore, an assembly reserved hole is respectively provided at both ends of the first splicing surface of the precast panel body, the assembly reserved hole is opened perpendicular to the first splicing surface and passes through the precast panel body to the outside of the second splicing surface, and a grouting reserved hole which is concave and connected to the assembly reserved hole is provided on the upper surface of the precast panel body; the connection structure includes an anchor rod group for relatively tightening a plurality of precast panels arranged in sequence along the extension direction of the track line, the anchor rod group is passed through the assembly reserved holes of the plurality of precast panels arranged in sequence, and the two ends of the anchor rod group respectively extend out of the assembly reserved holes of the precast panels on the corresponding sides; the connection structure also includes a concrete connecting tube filled in the assembly reserved hole and covering the corresponding anchor rod group, a concrete connecting column filled in the grouting reserved hole and connected to the corresponding concrete connecting tube, and a concrete connecting layer which is filled in the protruding end of the anchor rod group of the precast panel body and connects the adjacent two precast panels into one.

[0011] Furthermore, the inner end face and the outer end face of the prefabricated panel are respectively provided with concave connection reserved holes; the connection structure includes positioning support devices respectively arranged on both sides of the first prefabricated panel, longitudinal force devices respectively arranged on both sides of the second prefabricated panel adjacent to the first prefabricated panel, a tooth-shaped connection structure arranged between the first prefabricated panel and the second prefabricated panel, and a splicing agent filled between the tooth-shaped connection structures; the positioning support device is fixedly supported on the ground and is detachably connected to the connection reserved holes on the corresponding inner end face or outer end face for fixedly supporting the prefabricated panel; the longitudinal force device is supported on the ground and is detachably connected to the connection reserved holes on the corresponding inner end face or outer end face, and a thrust is applied to the second prefabricated panel toward the first prefabricated panel supported on the positioning support device through the longitudinal force device, so that the tooth-shaped connection structures are tightly fixed to each other through the splicing agent.

[0012] Furthermore, a pouring cavity is provided between two adjacent prefabricated panels; the connecting structure comprises a first connecting tube embedded in the first prefabricated panel, and a second connecting tube embedded in the second prefabricated panel adjacent to the first prefabricated panel, the first connecting tube and the second connecting tube are both hollow tubes connected at both ends, and the inlet ends of the first connecting tube and the second connecting tube are respectively connected with the corresponding upper surfaces, the outlet ends of the first connecting tube and the second connecting tube are respectively extended from the corresponding first splicing surface or the second splicing surface, and then are mutually sleeved and clamped in the pouring cavity, and the side walls of the outlet ends of the first connecting tube and the second connecting tube are respectively provided with slurry outlet holes connected with the pouring cavity; the connecting structure also comprises concrete connecting columns filled in the first connecting tube and the second connecting tube, and a concrete connecting layer formed by concrete overflowing from the slurry outlet hole to the pouring cavity, and the concrete connecting layer covers the outlet end of the first connecting tube or the second connecting tube.

[0013] According to another aspect of the present invention, there is also provided an assembly connection construction method for constructing an assembled floating unit plate with the above-mentioned connection structure, and the construction method comprises the following steps: marking the position of the floating plate unit block by marking the position of the floating plate unit block on the track foundation, hoisting the pre-processed first floating plate unit block to the position, and adjusting the placement position of the first floating plate unit block; hoisting the second floating plate unit block to the above-mentioned position, and adjusting the placement position of the second floating plate unit block so that the assembly reserved holes of two adjacent floating plate unit blocks are aligned; inserting the anchor rod group into the assembly reserved holes of a plurality of floating plate unit blocks arranged in sequence, and tightly anchoring the part of the anchor rod group extending out of the assembly reserved holes; pouring concrete through the grouting reserved holes to form a concrete connecting tube covering the anchor rod group and a concrete connecting column filling the grouting reserved holes; pouring concrete between the protruding ends of adjacent anchor rod groups to form a concrete connecting layer covering the protruding ends of the anchor rod groups; positioning and assembling the remaining floating plate unit blocks in sequence according to the above steps to form an assembled floating unit plate with a connection structure.

[0014] According to another aspect of the present invention, there is also provided an assembly connection construction method for constructing an assembled floating unit plate with the above connection structure, the construction method comprising the following steps: marking the position of the floating plate unit block on the track foundation, hoisting the pre-processed first floating plate unit block to the position, and adjusting the placement position of the first floating plate unit block; hoisting the second floating plate unit block to the above position, and adjusting the placement position of the second floating plate unit block, so that a tooth-shaped connection structure is formed between the two adjacent floating plate unit blocks; The positioning support device is installed through the connection reserved holes to fix the floating plate unit block on the ground, and the longitudinal force device is installed through the connection reserved holes of the adjacent floating plate unit blocks; the splicing agent is applied to the connection surfaces of the tooth-shaped connection structure respectively, or the splicing agent is poured between the connection surfaces of the tooth-shaped connection structure; the longitudinal force device is started to apply a thrust so that the tooth-shaped connection structures are fixed to each other through the splicing agent; the positioning support device and the longitudinal force device are disassembled; and the remaining floating plate unit blocks are positioned and assembled in sequence according to the above steps to form an assembled floating unit plate with the above connection structure.

[0015] According to another aspect of the present invention, there is also provided an assembly connection construction method for constructing an assembled floating unit plate with the above-mentioned connection structure, and the construction method comprises the following steps: marking the position of the floating plate unit block by marking a line on the track foundation, and hoisting the pre-processed first floating plate unit block to the position, and adjusting the placement position of the first floating plate unit block; hoisting the second floating plate unit block to the above-mentioned position, and adjusting the placement position of the second floating plate unit block so that the first connecting pipe and the second connecting pipe are arranged relative to each other; pushing adjacent floating plate unit blocks close to each other so that the first connecting pipe and the second connecting pipe are mutually sleeved and clamped; pouring concrete from the inlet end of the first connecting pipe or the second connecting pipe to form a concrete connecting column filling the first connecting pipe and the second connecting pipe, and a concrete connecting layer filling the pouring cavity and covering the outflow ends of the first connecting pipe and the second connecting pipe; positioning and assembling the remaining floating plate unit blocks in sequence according to the above steps to form an assembled floating unit plate with the above-mentioned connection structure.

[0016] The present invention has the following beneficial effects:

[0017] Compared with the common prefabricated floating slab in the prior art, the floating unit slab of the present invention is formed by connecting a plurality of floating slab unit blocks arranged in sequence along the extension direction of the track line through a connecting structure. On the one hand, the floating slab unit blocks with smaller volume and weight are not restricted by construction space and transportation and hoisting compared with the common prefabricated floating slab, and can be transported and hoisted more conveniently and labor-savingly. On the other hand, since the floating unit slab of the present invention is formed by connecting a plurality of floating slab unit blocks in sequence through a connecting structure, compared with the existing common prefabricated floating slab, which is generally 3.6.m to 8m, it can be connected to form a floating unit slab of any length according to the actual track line length, and has very high flexibility in use. Moreover, since it is an integral structure formed by connecting a plurality of floating slab unit blocks through a connecting structure, the floating unit slab structure is stable and firm, and there is no connection between adjacent floating slab unit blocks. The gap is small, the driving safety is very high, and the vibration reduction effect is very good; when the assembled floating unit plate of the present invention is used to connect and form a floating plate track bed section, compared with the use of existing ordinary prefabricated floating plates to connect and form a floating plate track bed section, the assembled floating unit plate of the present invention can be formed into any length by connecting the floating plate unit blocks through a connecting structure, so the number of times the plate ends in the floating plate track bed section appear discontinuously can be greatly reduced, thereby greatly improving the driving safety and vibration reduction effect, and increasing the service life of the track structure, reducing the number of required maintenance and the difficulty of maintenance, and improving the maintenance efficiency and the use efficiency of the floating plate track bed section; the assembled floating unit plate of the present invention can be formed by connecting the floating plate unit blocks through a connecting structure to form a straight floating unit plate extending along a straight line or a curved floating unit plate with a curved curvature. The assembled floating unit plate has high flexibility in use and is suitable for various construction sites and construction environments.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 is a schematic diagram of the development of a first prefabricated plate body having a right-angled trapezoidal cross section according to a preferred embodiment of the present invention; Figure 2 is a schematic diagram of the development of a second prefabricated plate body having a right-angled trapezoidal cross section according to a preferred embodiment of the present invention; Figure 3 It is a linear floating unit slab formed by connecting prefabricated slabs with right-angle trapezoidal cross sections; Figure 4 It is a curved floating unit slab formed by connecting prefabricated panels with right-angle trapezoidal cross sections; Figure 5 is a schematic diagram of the spatial structure of a third prefabricated panel body having a right-angled trapezoidal cross section; Figure 6 is a schematic diagram of the spatial structure of a fourth prefabricated panel body having a right-angled trapezoidal cross section; Figure 7 is a schematic diagram of the spatial structure of a fifth prefabricated panel body having a right-angled trapezoidal cross section; Figure 8 is a schematic diagram of the development of a first prefabricated plate body having an isosceles trapezoidal cross section in a preferred embodiment of the present invention; Fig. 9 is a schematic diagram of the development of a second prefabricated plate body having an isosceles trapezoidal cross section in a preferred embodiment of the present invention; Fig.10 It is a linear floating unit slab formed by connecting prefabricated slabs with isosceles trapezoidal cross sections; Fig.11 It is a curved floating unit slab formed by connecting prefabricated slabs with isosceles trapezoidal cross sections. Fig.12 is a schematic diagram of the spatial structure of a third prefabricated panel body having an isosceles trapezoidal cross section; Fig.13 is a schematic diagram of the spatial structure of a first embodiment of a connection structure of a preferred embodiment of the present invention; Fig.14 yes Fig.13 A schematic diagram of a sectional front view structure; Fig.15 is a schematic diagram of the spatial structure of a second embodiment of the connection structure of the preferred embodiment of the present invention; Fig.16 is a first main structural schematic diagram of a third embodiment of the connection structure of the preferred embodiment of the present invention; Fig.17 is a second main structural schematic diagram of a third embodiment of the connection structure of the preferred embodiment of the present invention; Fig.18 is a schematic diagram of the main structure of a fourth embodiment of the connection structure of the preferred embodiment of the present invention; Fig.19 is a schematic diagram of the main structure of a prefabricated plate body in a fifth embodiment of a connection structure of a preferred embodiment of the present invention; Fig. 20It is a schematic diagram of the main structure of the fifth embodiment of the connection structure of the preferred embodiment of the present invention.

[0021] Legend

[0022] 10. Floating plate unit block; 101. First joint surface; 102. Second joint surface; 103. Outer end surface; 104. Inner end surface; 105. Upper surface; 106. Grouting reserved hole; 107. Installation reserved hole; 108. Connection reserved hole; 109. Accommodation groove; 110. Assembly reserved hole; 11. Prefabricated plate body; 12. Rail support platform; 20. Connection structure; 21. First connection plate group; 211. First connection plate; 212. Second connection plate; 213. First fastener; 22. Concrete connection layer; 23, elastic material; 27, second connecting plate group; 28, third connecting plate group; 29, second fastener; 32, anchor rod group; 321, anchor rod; 322, anchor nut; 34, concrete connecting column; 37, positioning support device; 38, longitudinal force device; 39, bite tooth connection structure; 391, groove; 392, tooth key; 40, splicing agent; 43, first connecting pipe; 430, slurry outlet hole; 431, buckle; 44, second connecting pipe; 441, slot; 45, sealing gasket. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0024] Reference Figure 1-Figure 20 The preferred embodiment of the present invention provides an assembled floating unit plate, comprising a plurality of floating plate unit blocks 10 and a connection structure 20. The plurality of floating plate unit blocks 10 are arranged in sequence along the extension direction of the track line. The connection structure 20 is arranged between adjacent floating plate unit blocks 10, so as to connect the plurality of floating plate unit blocks 10 to form a linear floating unit plate extending along a straight line, or to connect the plurality of floating plate unit blocks 10 to form a curved floating unit plate with a curved curvature.

[0025] Compared with the common prefabricated floating slabs in the prior art, the assembled floating unit slab of the present invention is formed by connecting a plurality of floating slab unit blocks 10 arranged in sequence along the extension direction of the track line through a connecting structure 20. On the one hand, the floating slab unit blocks 10 with smaller volume and weight are not restricted by construction space and transportation and hoisting compared with the common prefabricated floating slabs, and can be transported and hoisted more conveniently and labor-savingly. On the other hand, since the assembled floating unit slab of the present invention is formed by connecting a plurality of floating slab unit blocks 10 in sequence through a connecting structure 20, compared with the existing common prefabricated floating slabs which are generally 3.6m to 8m, it can be connected to form a floating unit slab of any length according to the actual track line length, and has very high flexibility in use. The floating plate unit blocks 10 are connected by the connecting structure 20 to form an integral structure, so the floating plate unit block structure is stable and firm, there is no connection gap between adjacent floating plate unit blocks 10, the driving safety is very high, and the vibration reduction effect is very good; when the assembled floating plate unit plates of the present invention are connected to form a floating plate track bed section, compared with the use of existing ordinary prefabricated floating plates to form a floating plate track bed section, since the assembled floating plate unit plates of the present invention can be connected by the floating plate unit blocks 10 through the connecting structure 20 to form any length, the number of times the plate ends in the floating plate track bed section are discontinuous can be greatly reduced, thereby greatly improving the driving safety and vibration reduction effect, and increasing the service life of the track structure, reducing the number of required maintenance and the difficulty of maintenance, and improving the maintenance efficiency and the use efficiency of the floating plate track bed section; and by Figure 3 , Figure 4 , Fig.10 and Fig.11 As shown, the assembled floating unit plate of the present invention can be formed by connecting the floating plate unit blocks 10 through the connecting structure 20 to form a straight floating unit plate extending along a straight line or a curved floating unit plate with a curved curvature. The assembled floating unit plate has high flexibility in use and is suitable for various construction sites and construction environments.

[0026] Alternatively, if Figure 3-Figure 7 , Figure 10-12As shown, the floating plate unit block 10 includes a prefabricated plate body 11 and a rail support platform group. The prefabricated plate body 11 includes a first splicing surface 101 and a second splicing surface 102 arranged oppositely. The first splicing surface 101 and the second splicing surface 102 are arranged along the width direction of the floating plate unit, and the first splicing surface 101 is arranged obliquely with the two adjacent side surfaces to form an inclined surface, and the second splicing surface 102 is arranged perpendicularly with the two adjacent side surfaces to form a vertical surface, or the second splicing surface 102 and the first splicing surface 101 are arranged symmetrically along the center line plane of the floating plate unit block 10. The first splicing surface 101 and the second splicing surface 102 are respectively connected with an outer end surface 103 and an inner end surface 104 arranged oppositely. The first splicing surface 101, the outer end surface 103, the second splicing surface 102 and the inner end surface 104 constitute the four sides of the prefabricated plate body 11. The prefabricated plate body 11 also includes an upper surface 105 used as a support platform. The first joint surface 101 of the precast panel body 11 is connected to the first joint surface 101 of the adjacent precast panel body 11 through a connecting structure 20 to form a straight floating unit panel extending along a straight line. And / or the first joint surface 101 of the precast panel body 11 is connected to the second joint surface 102 of the adjacent precast panel body 11 through a connecting structure 20 to form a curved floating unit panel with a curved curvature. The rail support platform 12 group is connected to the upper surface 105 of the precast panel body 11, and the rail support platform 12 group is used to install the track components. Specifically, there are multiple rows of steel skeletons in the precast panel body 11, which are used to bear the upper load and resist the shrinkage deformation of the concrete caused by temperature changes. The rail support platform group is used to install track components such as fasteners and rails.

[0027] Optionally, the first embodiment of the connection structure of the present invention is as follows: Fig.13 and Fig.14As shown, the connection structure 20 includes a plurality of first connection plate groups 21 connected between two adjacent precast panels 11, and a concrete connection layer 22 filled between two adjacent precast panels 11. The first connection plate group 21 includes a first connection plate 211 whose fixed end is embedded in the first precast panel 11 and whose connection end extends from the first splicing surface 101, a second connection plate 212 whose fixed end is embedded in the second precast panel 11 adjacent to the first precast panel 11 and whose connection end extends from the first splicing surface 101 or the second splicing surface 102, and a first fastener 213 for locking and fixing, the connection end of the first connection plate 211 and the connection end of the second connection plate 212 abut against each other, and the first fastener 213 is simultaneously penetrated through the connection end of the first connection plate 211 and the connection end of the second connection plate 212 to lock and fix the correspondingly arranged first connection plate 211 and second connection plate 212. The concrete connection layer 22 is filled between two adjacent precast panels 11 and covers the connection ends of the first connection panel 211, the connection ends of the second connection panel 212 and the first fastener 213. Further, multiple groups of first connection panel groups 21 are arranged in sequence along the width direction of the floating unit panel. The first fastener 213 is a connection bolt. The first connection panel 211 and the second connection panel 212 are both steel plates.

[0028] In a specific implementation of the first embodiment of the connection structure of the present invention, as Fig.13 and Fig.14 As shown, the fixed ends of the first connecting plate 211 and the second connecting plate 212 are respectively vertically inserted into the corresponding prefabricated plate body 11, and the first connecting plate 211 and the second connecting plate 212 are embedded in the prefabricated plate body 11 and are wrapped by an elastic material 23 to cope with the deformation of the concrete caused by temperature changes and to prevent the first connecting plate 211 or the second connecting plate 212 from corroding. Specifically, the elastic material 23 is vulcanized rubber. The connecting ends of the first connecting plate 211 and the second connecting plate 212 extend vertically out of the corresponding prefabricated plate body 11 for a certain distance and then turn parallel to the splicing surface.

[0029] The construction method of the first embodiment of the connection structure of the present invention comprises the following steps:

[0030] Mark the position of the floating plate unit block 10 by marking it on the track foundation, hoist the pre-processed first floating plate unit block 10 to the position, and adjust the placement position of the first floating plate unit block 10;

[0031] Hoist the second floating plate unit block 10 to the above position, and adjust the placement position of the second floating plate unit block 10 so that the adjacent first connecting plate 211 and the second connecting plate 212 are relatively pressed against each other, and the bolt holes opened on the first connecting plate 211 are aligned with the bolt holes opened on the second connecting plate 212;

[0032] The first fastener 213 is inserted into the connection end of the first connection plate 211 and the connection end of the second connection plate 212 at the same time, so as to lock and fix the correspondingly arranged first connection plate 211 and second connection plate 212;

[0033] Concrete is poured 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;

[0034] According to the above steps, the remaining floating plate unit blocks 10 are positioned and assembled in sequence to form an assembled floating unit plate with the above connection structure.

[0035] In the first embodiment of the connection structure of the present invention, the good mechanical properties of the steel plate, bolts and concrete are fully utilized, the construction operation is simple, the construction efficiency is high, the connection between adjacent floating plate unit blocks 10 is tight, and the structural strength is high.

[0036] Optionally, a second embodiment of the connection structure of the present invention is as follows: Fig.15 As shown, the connection structure 20 includes a first connection rib whose fixed end is embedded in the first prefabricated panel 11 and whose connection end extends from the first splicing surface 101, a second connection rib whose fixed end is embedded in the second prefabricated panel 11 adjacent to the first prefabricated panel 11 and whose connection end extends 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 fastener 29 for locking and fixing, and a concrete connection layer 22 filled between two adjacent prefabricated panels 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 panel, and the second connection plate group 27 and the third connection plate group 28 correspond to each other and abut against each other. The second fastener 29 is simultaneously penetrated in 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 connection layer 22 covers the second connection plate set 27 , the third connection plate set 28 and the second fastener 29 .

[0037] In a specific implementation of the second embodiment of the connection structure of the present invention, as Fig.15 As shown, the number of the first connecting ribs and the number of the second connecting ribs are both multiple; the second connecting plate group 27 and the third connecting plate group 28 have the same structure, both including two connecting end plates arranged relatively spaced apart along the width direction of the floating unit plate, and a plurality of reinforcing ribs connected between the two connecting end plates, and the side wall of the connecting end plate close to the connecting end of the connecting rib is fixed to the corresponding connecting rib; the connecting end plate and the reinforcing rib are both steel plates; the second fastener 29 is a connecting bolt.

[0038] The construction method of the second embodiment of the connection structure of the present invention comprises the following steps:

[0039] Mark the position of the floating plate unit block 10 by marking it on the track foundation, hoist the pre-processed first floating plate unit block 10 to the position, and adjust the placement position of the first floating plate unit block 10;

[0040] Hoist the second floating plate unit block 10 to the above position, and adjust the placement position of the second floating plate unit block 10 so that the adjacent second connecting plate group 27 and the third connecting plate group 28 are relatively pressed against each other, and the bolt holes opened on the second connecting plate group 27 are aligned with the bolt holes opened on the third connecting plate group 28;

[0041] The second fastener 29 is inserted into the bolt holes of the second connection plate group 27 and the third connection plate group 28 at the same time, so as to lock and fix the corresponding second connection plate group 27 and the third connection plate group 28;

[0042] Concrete is poured between adjacent floating plate unit blocks 10 to form a concrete connection layer 22 covering the second connection plate group 27, the third connection plate group 28 and the second fastener 29;

[0043] According to the above steps, the remaining floating plate unit blocks 10 are positioned and assembled in sequence to form an assembled floating unit plate with the above connection structure.

[0044] In the second embodiment of the connection structure of the present invention, the good mechanical properties of the steel plate, bolts and concrete are fully utilized, the construction operation is simple, the construction efficiency is high, the connection between adjacent floating plate unit blocks 10 is tight, and the structural strength is high.

[0045] Optionally, a third embodiment of the connection structure of the present invention is as follows: Fig.16 and Fig.17 As shown, both ends of the first joint surface 101 of the prefabricated panel 11 are provided with assembly reserved holes 110, which are opened perpendicular to the first joint surface 101 and penetrate the prefabricated panel 11 to connect to the second joint surface 102, and the upper surface 105 of the prefabricated panel 11 is provided with a grouting reserved hole 106 which is concave and communicated with the assembly reserved hole. The connection structure 20 includes an anchor rod group 32 for relatively tightening a plurality of prefabricated panels 11 arranged in sequence along the extension direction of the track line, and the anchor rod group 32 is penetrated in the assembly reserved holes of the plurality of prefabricated panels 11 arranged in sequence, and the two ends of the anchor rod group 32 extend out of the assembly reserved holes of the prefabricated panel 11 on the corresponding side. The connection structure 20 also includes a concrete connection tube filled in the assembly reserved hole and covering the corresponding anchor rod group 32, a concrete connection column 34 filled in the grouting reserved hole 106 and connected to the corresponding concrete connection tube, and a concrete connection layer 22 filled in the protruding end of the anchor rod group 32 of the prefabricated panel body 11 and connecting two adjacent prefabricated panel bodies 11 into one.

[0046] In a specific implementation of the third embodiment of the connection structure of the present invention, as Fig.16 and Fig.17 As shown, the anchor rod group 32 includes anchor rods 321 that are inserted into the assembly reserved holes of a plurality of prefabricated panels 11 arranged in sequence and whose two ends extend out of the assembly reserved holes of the prefabricated panels 11 on the corresponding sides, and anchor nuts 322 that are respectively threadedly connected to the outer circles of the two ends of the anchor rods 321. The anchor rods 321 are prestressed tendons.

[0047] An assembly connection construction method of the present invention is used to construct an assembled floating unit plate of the third embodiment having a connection structure of the present invention. The construction method comprises the following steps:

[0048] Mark the position of the floating plate unit block 10 by marking it on the track foundation, hoist the pre-processed first floating plate unit block 10 to the position, and adjust the placement position of the first floating plate unit block 10;

[0049] Hoist the second floating plate unit block 10 to the above position, and adjust the placement position of the second floating plate unit block 10 so that the assembly reserved holes of two adjacent floating plate unit blocks 10 are aligned;

[0050] The anchor rod 321 is inserted into the assembly reserved holes of the plurality of floating plate unit blocks 10 arranged in sequence, and the portion of the anchor rod 321 extending out of the assembly reserved hole is tightly anchored by the anchor nut 322;

[0051] Concrete is poured through the grouting reserved hole 106 to form a concrete connecting tube covering the anchor rod 321 and a concrete connecting column 34 filling the grouting reserved hole 106;

[0052] Concrete is poured between the protruding ends of adjacent anchor rods 321 to form a concrete connection layer 22 covering the protruding ends of the anchor rods 321, so as to connect adjacent floating slab unit blocks 10 into a whole;

[0053] According to the above steps, the remaining floating plate unit blocks 10 are positioned and assembled in sequence to form an assembled floating unit plate having the above connection structure 20 .

[0054] In the third embodiment of the connection structure of the present invention, the excellent mechanical properties of the prestressed tendons are fully utilized, the connection structure is simple in structure, the number of prestressed tendons required is also small, and cracks between adjacent floating plate unit blocks 10 can be effectively prevented. The construction operation is simple and the construction efficiency is high. The connection between adjacent floating plate unit blocks 10 is tight and the structural strength is high.

[0055] Optionally, a fourth embodiment of the connection structure of the present invention is as follows: Fig.18As shown, the inner end surface 104 and the outer end surface 103 of the prefabricated panel 11 are respectively provided with concave connection reserved holes 108. The connection structure 20 includes positioning support devices 37 respectively arranged on both sides of the first prefabricated panel 11, longitudinal force devices 38 respectively arranged on both sides of the second prefabricated panel 11 adjacent to the first prefabricated panel 11, a tooth-shaped connection structure 39 arranged between the first prefabricated panel 11 and the second prefabricated panel 11, and a splicing agent 40 filled between the tooth-shaped connection structures 39. The positioning support device 37 is fixedly supported on the ground and is detachably connected to the connection reserved holes 108 on the corresponding inner end surface 104 or outer end surface 103, so as to be used for fixedly supporting the prefabricated panel 11. The longitudinal force-applying device 38 is supported on the ground and is detachably connected to the connection reserved hole 108 on the corresponding inner end face 104 or the outer end face 103. The longitudinal force-applying device 38 applies a thrust to the second prefabricated panel 11 toward the first prefabricated panel 11 supported on the positioning support device 37, so that the tooth-shaped connection structure 39 is fixed to each other by the splicing agent 40.

[0056] In a specific implementation of the fourth embodiment of the connection structure of the present invention, as Fig.18 As shown, the bite-tooth connection structure 39 includes a groove 391 arranged on the first splicing surface 101 of the prefabricated panel 11 and arranged in sequence along the width direction of the first splicing surface 101, and a tooth key 392 arranged on the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated panel 11 and matched with the groove 391. Preferably, in order to enhance the connection performance, when the floating panel unit block 10 is prefabricated and shipped out of the factory, the tooth key 392 and the groove 391 can also be prefabricated steel plates and integrally formed with the prefabricated panel 11, and the splicing agent 40 has better splicing performance on the steel plate. The splicing agent 40 is epoxy resin glue. The positioning support device 37 includes a support frame constructed of steel plates, and a locking screw for fixing the support frame to the prefabricated panel 11 or the ground. The longitudinal force application device 38 is a hydraulic jack or an electric-controlled hydraulic jack.

[0057] An assembly connection construction method of the present invention is used to construct an assembled floating unit plate of the fourth embodiment having a connection structure of the present invention. The construction method comprises the following steps:

[0058] Mark the position of the floating plate unit block 10 by marking it on the track foundation, hoist the pre-processed first floating plate unit block 10 to the position, and adjust the placement position of the first floating plate unit block 10;

[0059] The second floating plate unit block 10 is hoisted to the above position, and the placement position of the second floating plate unit block 10 is adjusted so that a tooth-shaped connection structure 39 is formed between two adjacent floating plate unit blocks 10, that is, the groove 391 on the first splicing surface 101 and the tooth key 392 on the adjacent first splicing surface 101 or the second splicing surface 102 are engaged with each other;

[0060] A positioning support device 37 is installed through the connection reserved holes 108 of the floating plate unit block 10 to fix and support the floating plate unit block 10 on the ground, and a longitudinal force application device 38 is installed through the connection reserved holes 108 of the adjacent floating plate unit blocks 10;

[0061] Splicing agent 40 is applied to the connection surfaces of the toothed connection structure 39, or the splicing agent 40 is poured between the connection surfaces of the toothed connection structure 39, that is, epoxy resin glue is applied to the connection surfaces of the groove 391 and the tooth key 392, or epoxy resin glue is poured between the groove 391 and the tooth key 392;

[0062] The longitudinal force applying device 38 is started to apply a thrust so that the tooth-shaped connection structures 39 are mutually engaged through the splicing agent 40, so as to allow the splicing agent 40 to quickly cure under pressure and provide good splicing performance;

[0063] The positioning support device 37 and the longitudinal force applying device 38 are disassembled.

[0064] According to the above steps, the remaining floating plate unit blocks 10 are positioned and assembled in sequence to form an assembled floating unit plate having the above-mentioned connection structure 20.

[0065] In the fourth embodiment of the connection structure of the present invention, this assembly method makes full use of the dimensional structural properties of the mutually matching coupling of the splines and grooves and the physical properties of the splicing agent to assist the connection. It is easy to achieve precise positioning and splicing of adjacent prefabricated panels 11 without the need for additional tools, and makes full use of the special structure of the splines and grooves and the strength of the splicing agent as a guarantee of good shear performance. The construction operation is simple and the construction efficiency is high. The connection between adjacent floating plate unit blocks 10 is tight and the structural strength is high.

[0066] Optionally, a fifth embodiment of the connection structure of the present invention is as follows: Fig.19 and Fig. 20As shown, a pouring cavity is provided between two adjacent prefabricated panels 11. The connection structure 20 includes a first connection pipe 43 pre-buried in the first prefabricated panel 11, and a second connection pipe 44 pre-buried in the second prefabricated panel 11 adjacent to the first prefabricated panel 11. The first connection pipe 43 and the second connection pipe 44 are both hollow pipes connected at both ends, and the inlet ends of the first connection pipe 43 and the second connection pipe 44 are respectively connected to the corresponding upper surface 105, and the outlet ends of the first connection pipe 43 and the second connection pipe 44 extend from the corresponding first splicing surface 101 or the second splicing surface 102, and then are mutually sleeved and clamped in the pouring cavity, and the side walls of the outlet ends of the first connection pipe 43 and the second connection pipe 44 are respectively provided with slurry outlet holes 430 connected to the pouring cavity. The connection structure 20 also includes a concrete connection column 34 filled in the first connection pipe 43 and the second connection pipe 44, and a concrete connection layer 22 formed by concrete overflowing from the slurry outlet 430 to the pouring cavity, and the concrete connection layer 22 covers the outflow end of the first connection pipe 43 or the second connection pipe 44.

[0067] In a specific implementation of the fifth embodiment of the connection structure of the present invention, as Fig.19 and Fig. 20 As shown, the outer diameter of the first connecting tube 43 is smaller than the outer diameter of the second connecting tube 44, and a buckle 431 is provided on the outer surface of the first connecting tube 43, and a groove 441 matching the buckle 431 is provided on the inner surface of the second connecting tube 44, and only when the first connecting tube 43 extends into the second connecting tube 44 at a correct angle, the buckle 431 and the groove 441 can be coupled. The first connecting tube 43 and the second connecting tube 44 are both coated with elastic material 23 to cope with the deformation of concrete caused by temperature and to prevent the first connecting tube 43 and the second connecting tube 44 from corroding. The inlet ends of the first connecting tube 43 and the second connecting tube 44 are respectively perpendicular to the upper surface of the precast plate body 11, and the outlet ends of the two are respectively perpendicular to the inlet ends. The first splicing surface 101 of the prefabricated panel body 11 and the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated panel body 11 are respectively provided with matching accommodating grooves 109, and the two accommodating grooves 109 cooperate to form a perfusion cavity, and the first splicing surface 101 of the prefabricated panel body 11 and the first splicing surface 101 or the second splicing surface 102 of the adjacent prefabricated panel body 11 are also respectively provided with matching sealing gaskets 45, and the sealing gaskets 45 are used to seal the gap between adjacent prefabricated panel bodies 11.

[0068] An assembly connection construction method of the present invention is used to construct an assembled floating unit plate of the fifth embodiment having a connection structure of the present invention. The construction method comprises the following steps:

[0069] Mark the position of the floating plate unit block 10 by marking it on the track foundation, hoist the pre-processed first floating plate unit block 10 to the position, and adjust the placement position of the first floating plate unit block 10;

[0070] Hoist the second floating plate unit block 10 to the above position, and adjust the placement position of the second floating plate unit block 10 so that the first connecting pipe 43 and the second connecting pipe 44 are arranged opposite to each other;

[0071] Push the adjacent floating plate unit blocks 10 to approach each other so that the first connecting tube 43 and the second connecting tube 44 are mutually sleeved and clamped. It should be noted that the design of the buckle 431 and the clamping groove 441 allows the first connecting tube 43 and the second connecting tube 44 to extend into each other only when the angles are correct, thereby avoiding the wrong direction of the floating plate unit block during assembly. At this point, the positioning of the floating plate unit block 10 is completed. 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, thereby combining the two receiving grooves 109 of the adjacent floating plate unit blocks 10 into a complete sealed perfusion cavity;

[0072] Concrete is poured from the inlet end of the first connecting pipe 43 or the second connecting pipe 44 to form a concrete connecting column 34 filling the first connecting pipe 43 and the second connecting pipe 44, and a concrete connecting layer 22 filling the pouring cavity and covering the outflow ends of the first connecting pipe 43 and the second connecting pipe 44. When pouring, concrete is poured from the inlet end of any connecting pipe. Since the first connecting pipe 43 and the second connecting pipe 44 are both provided with slurry outlet holes 430, according to the communicating vessel principle, the concrete will gradually fill the sealed pouring cavity, and then emerge at the inlet end of the other connecting pipe. At this time, it means that the pouring cavity has been filled with concrete, and the assembly of the floating plate unit block 10 can be completed after the concrete is formed;

[0073] According to the above steps, the remaining floating plate unit blocks 10 are positioned and assembled in sequence to form an assembled floating unit plate having the above-mentioned connection structure 20.

[0074] In the fifth embodiment of the connection structure of the present invention, the assembly method adopts large and small pipes with different outer diameters, buckles and slots to dock and assemble adjacent prefabricated panel unit blocks. This design has an anti-fool function. Only when the positioning angle is correct can the splicing be successful, and the positioning and assembly work is simple and easy. Since the shear force of the splicing surface reaches the maximum near the middle of the splicing surface, cracking is most likely to occur here. Therefore, a concrete layer is formed by a pouring cavity to enhance the shear resistance of adjacent prefabricated panel unit blocks. After the connection is completed, the elastic sealing gasket at the location of the splicing surface can also be regarded as an expansion joint to prevent cracks caused by concrete shrinkage creep due to temperature changes on the outside of the plate body in the extension length direction of the track line.

[0075] It should be noted that the five embodiments of the connection structure of the present invention can be flexibly cross-combined and used as needed, such as: the fourth embodiment of the connection structure of the present invention can also be used in combination with the third embodiment of the connection structure of the present invention. The advantage of this is that the prestressed tendons of the third embodiment ensure that the splicing surfaces of adjacent floating plate unit blocks are always under pressure, avoiding the deterioration of the splicing performance caused by the interface splicing agent being subjected to reciprocating stress, optimizing the stress conditions of the floating unit plate, and extending the service life of the floating unit plate. The above example is only a specific embodiment of the assembly method. The flexible cross-combination of various floating plate unit block assembly methods can not only more reliably transmit shear force and optimize the stress conditions of the floating unit plate, but also further enhance the integrity of the floating unit plate and improve the applicability and service life of the system.

[0076] Optionally, the first embodiment of the prefabricated panel of the present invention is as follows: Figure 1 and Figure 2 As shown, the cross section of the prefabricated panel 11 along the horizontal direction is a right-angled trapezoid. The first splicing surface 101 constitutes the hypotenuse of the right-angled trapezoid. The second splicing surface 102 constitutes the right-angled side of the right-angled trapezoid. The outer end surface 103 and the inner end surface 104 respectively constitute the upper top side and the lower bottom side of the right-angled trapezoid. In the first embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated panel 11 is spliced ​​and connected with the first splicing surface 101 of the second prefabricated panel 11, a linear floating unit panel extending along a straight line can be formed, such as Figure 3 As shown, the ends of the linear floating unit plate can be at right angles to facilitate the assembly connection of the floating unit plate with adjacent floating unit plates; in the first embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated plate body 11 is spliced ​​and connected with the second splicing surface 102 of the second prefabricated plate body 11, a curved floating unit plate with a curvature can be formed, such as Figure 4 As shown, the curved floating unit plate is suitable for floating plate roadbed sections with a larger turning radius, and by setting the oblique angle between the first joint surface 101 and the two adjacent side surfaces, the bending curvature of the curved floating unit plate can be changed to adapt to floating plate roadbed sections with any turning radius.

[0077] In the first specific embodiment of the first embodiment of the prefabricated panel body of the present invention, for the floating unit panel in the curved section, when the superelevation of the track foundation used for installing and supporting the floating unit panel on the outer side of the curve is not enough, the prefabricated panel body 11 can also be further optimized to meet the superelevation requirement, that is, the prefabricated panel body 11 also includes a lower bottom surface arranged opposite to the upper surface 105. The lower bottom surface is an inclined surface gradually inclined downward from the inner end surface 104 to the outer end surface 103, such as Figure 2 As shown, 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 lateral direction, and the adjustment is flexible and reliable.

[0078] Furthermore, in the first embodiment of the prefabricated panel of the present invention, a set of reserved installation holes perpendicular to the upper surface 105 and penetrating the prefabricated panel 11 is provided on the upper surface 105 of the prefabricated panel 11. The reserved installation holes are used to install vibration isolators for vibration isolation and noise reduction.

[0079] Preferably, the second specific embodiment of the first embodiment of the prefabricated panel of the present invention is as follows Figure 5 As shown, the number of rail support platforms is one group and they are arranged in the middle of the longitudinal direction of the prefabricated plate body 11. The rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged at intervals along the transverse direction of the prefabricated plate body 11. The number of installation reserved hole groups is one group, and the installation reserved hole group includes two installation reserved holes 107. The two installation reserved holes 107 are respectively arranged at both ends of the rail support platform group and are respectively close to the inner end surface 104 and the outer end surface 103, that is, the two installation reserved holes 107 are respectively arranged on the outer sides of the two rail support platforms 12 of the corresponding rail support platform group and are respectively close to the corresponding inner end surface 104 or the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is relatively short, the number of the rail support platform groups and the number of the installation reserved hole groups thereon are respectively one group, and the number of the rail support platform groups and the number of each group, as well as the number of the installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is subjected to uniform force, thereby enhancing driving safety and stability, improving the vibration reduction effect, and reducing noise.

[0080] Preferably, the third specific embodiment of the first embodiment of the prefabricated panel of the present invention is as follows: Figure 6 As shown, there are multiple rail support platform groups, and the multiple rail support platform groups are arranged in sequence along the longitudinal direction of the prefabricated plate body 11. Each rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged along the lateral spacing of the prefabricated plate body 11. The installation reserved hole groups are arranged in a one-to-one correspondence with the rail support platform groups. Each installation reserved hole group includes two installation reserved holes 107. The two installation reserved holes 107 are respectively arranged at both ends of the corresponding rail support platform group, and are respectively arranged close to the inner end surface 104 and the outer end surface 103, that is, the two installation reserved holes 107 are respectively arranged on the outer sides of the two rail support platforms 12 of the corresponding rail support platform group, and are respectively close to the corresponding inner end surface 104 or the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is long, the number of the rail support platform groups and the number of the installation reserved hole groups thereon are respectively multiple, and the number of the rail support platform groups and the number of each group, as well as the number of the installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is evenly stressed, thereby enhancing driving safety and stability, improving the vibration reduction effect, and reducing noise.

[0081] Preferably, the fourth specific embodiment of the first embodiment of the prefabricated panel of the present invention is as follows: Figure 7As shown, the number of rail support platforms is multiple and even, and the multiple rail support platforms are arranged in sequence along the longitudinal direction of the prefabricated board 11, and each rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged along the transverse spacing of the prefabricated board 11. The number of installation reserved hole groups is half of the number of rail support platform groups, and the installation reserved hole groups are arranged between every two adjacent rail support platform groups. Each installation reserved hole group includes two installation reserved holes 107, and the two installation reserved holes 107 are arranged along the transverse spacing of the prefabricated board 11, and the two installation reserved holes 107 are respectively close to the corresponding inner end surface 104 and the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is long, the number of the rail support platform groups and the number of the installation reserved hole groups thereon are multiple and even numbers, and the number of rail support platform groups and the number of each group, as well as the number of installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is evenly stressed, thereby enhancing driving safety and stability, improving vibration reduction effects, and reducing noise. Compared with the fourth specific embodiment of the first embodiment of the prefabricated board of the present invention, the third specific embodiment of the first embodiment of the prefabricated board of the present invention is that when the number of rail support platform groups is the same, the number of installation reserved hole groups in the third specific embodiment is more than that in the fourth specific embodiment, forming an encrypted board type, strengthening the track stiffness to improve driving safety and stability.

[0082] Optionally, the second embodiment of the prefabricated panel of the present invention is as follows: Figure 8 and Fig. 9 As shown, the cross section of the prefabricated panel 11 along the horizontal direction is an isosceles trapezoid. The first splicing surface 101 and the second splicing surface 102 respectively constitute two isosceles sides of the isosceles trapezoid. The inner end surface 104 constitutes the upper top side of the isosceles trapezoid. The outer end surface 103 constitutes the lower bottom side of the isosceles trapezoid. In the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated panel 11 is spliced ​​and connected with the first splicing surface 101 of the second prefabricated panel 11, a linear floating unit panel extending along a straight line can be formed, such as Fig.10 As shown, the ends of the linear floating unit plate can be at right angles to facilitate the assembly and connection of the floating unit plate with adjacent floating unit plates; in the second embodiment of the present invention, when the first splicing surface 101 of the adjacent first prefabricated plate body 11 is spliced ​​and connected with the second splicing surface 102 of the second prefabricated plate body 11, a curved floating unit plate with a curvature can be formed, such as Fig.11 As shown, the curved floating unit plate is suitable for a floating plate ballast section with a larger turning radius, and by setting the angle between the first joint surface 101 and the transverse direction of the floating unit plate, the bending curvature of the curved floating unit plate can be changed to adapt to a floating plate ballast section with any turning radius.

[0083] In the first specific embodiment of the second embodiment of the prefabricated panel body of the present invention, for the floating unit panels in the curved section, when the superelevation of the track foundation used to install and support the floating unit panels on the outer side of the curve is not enough, the prefabricated panel body 11 can also be further optimized to meet the superelevation requirement, that is, the prefabricated panel body 11 also includes a lower bottom surface arranged opposite to the upper surface 105. The lower bottom surface is an inclined surface that gradually inclines toward the outside from the inner end surface 104 to the outer end surface 103. Fig. 9 As shown, 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 lateral direction, and the adjustment is flexible and reliable.

[0084] Furthermore, in the second embodiment of the prefabricated panel of the present invention, a set of reserved installation holes is provided on the upper surface 105 of the prefabricated panel 11, which are perpendicular to the upper surface 105 and penetrate the prefabricated panel 11. The reserved installation holes are used to install vibration isolators for vibration isolation and noise reduction.

[0085] Preferably, in the second specific embodiment of the second embodiment of the prefabricated panel body of the present invention, which is not shown in the figure, the number of the rail support platform group is one group and is arranged in the middle position of the longitudinal direction of the prefabricated panel body 11, and the rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged at intervals along the transverse direction of the prefabricated panel body 11. The number of the installation reserved hole group is one group, and the installation reserved hole group includes two installation reserved holes 107, and the two installation reserved holes 107 are respectively arranged at both ends of the rail support platform group and are respectively close to the inner end surface 104 and the outer end surface 103, that is, the two installation reserved holes 107 are respectively arranged on the outer sides of the two rail support platforms 12 of the corresponding rail support platform group, and are respectively close to the corresponding inner end surface 104 or the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is relatively short, the number of the rail support platform groups and the number of the installation reserved hole groups thereon are respectively one group, and the number of the rail support platform groups and the number of each group, as well as the number of the installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is subjected to uniform force, thereby enhancing driving safety and stability, improving the vibration reduction effect, and reducing noise.

[0086] Preferably, the third specific embodiment of the second embodiment of the prefabricated panel of the present invention is as follows: Fig.12As shown, there are multiple rail support platform groups, which are arranged in sequence along the longitudinal direction of the prefabricated plate 11. Each rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged along the transverse spacing of the prefabricated plate 11. The installation reserved hole groups are arranged in a one-to-one correspondence with the rail support platform groups. Each installation reserved hole group includes two installation reserved holes 107. The two installation reserved holes 107 are respectively arranged at both ends of the corresponding rail support platform group, and are respectively close to the inner end surface 104 and the outer end surface 103, that is, the two installation reserved holes 107 are respectively arranged on the outer sides of the two rail support platforms 12 of the corresponding rail support platform group, and are respectively close to the corresponding inner end surface 104 or the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is long, the number of the rail support platform groups and the number of the installation reserved hole groups thereon are respectively multiple, and the number of the rail support platform groups and the number of each group, as well as the number of the installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is evenly stressed, thereby enhancing driving safety and stability, improving the vibration reduction effect, and reducing noise.

[0087] Preferably, in the fourth specific embodiment of the second embodiment of the prefabricated panel body of the present invention, which is not shown in the figure, the number of rail support platform groups is multiple and is an even number, and the multiple rail support platform groups are sequentially spaced along the longitudinal direction of the prefabricated panel body 11, and each rail support platform group includes two rail support platforms 12, and the two rail support platforms 12 are arranged along the lateral spacing of the prefabricated panel body 11. The number of installation reserved hole groups is half of the number of rail support platform groups, and the installation reserved hole groups are arranged between every two adjacent rail support platform groups, and each installation reserved hole group includes two installation reserved holes 107, and the two installation reserved holes 107 are arranged along the lateral spacing of the prefabricated panel body 11, and the two installation reserved holes 107 are respectively close to the corresponding inner end surface 104 and the outer end surface 103. When the length of the prefabricated board 11 along the longitudinal direction is long, the number of rail support platforms and installation reserved hole groups thereon are multiple and even numbers, and the number of rail support platforms and the number of each group, as well as the number of installation reserved hole groups and the number of each group, are used to form a uniform and symmetrical structural setting on the prefabricated board 11 as much as possible, so that the prefabricated board 11 is evenly stressed, thereby enhancing driving safety and stability, improving vibration reduction effects, and reducing noise. The third specific embodiment of the second embodiment of the present invention is compared to the fourth specific embodiment of the second embodiment of the present invention. When the number of rail support platforms is the same, the number of installation reserved hole groups in the third specific embodiment is more than that in the fourth specific embodiment, forming an encrypted plate type, strengthening the track stiffness to improve driving safety and stability.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled floating unit plate, characterized in that: It comprises a plurality of floating plate unit blocks (10) and a connection structure (20); A plurality of floating plate unit blocks (10) are arranged in sequence along the extension direction of the track line; The connection structure (20) is arranged between adjacent floating plate unit blocks (10) to connect a plurality of floating plate unit blocks (10) to form a straight floating plate unit plate extending along a straight line, or to connect a plurality of floating plate unit blocks (10) to form a curved floating plate unit plate with a curvature. The floating plate unit block (10) comprises a prefabricated plate body (11) and a rail support platform group; the prefabricated plate body (11) comprises a first splicing surface (101) and a second splicing surface (102) arranged opposite to each other, the first splicing surface (101) and the second splicing surface (102) are arranged along the width direction of the floating plate unit block, and the first splicing surface (101) is arranged obliquely with two adjacent side surfaces to form an inclined surface, and the second splicing surface (102) is arranged perpendicularly with two adjacent side surfaces to form a vertical surface, or the second splicing surface (102) and the first splicing surface (101) are arranged symmetrically along the center line plane of the floating plate unit block (10); the first splicing surface (101) and the second splicing surface (102) are respectively connected to an outer end surface (103) and an inner end surface (104) arranged opposite to each other, and the first splicing surface (101) and the outer end surface (103) and the inner end surface (104) are respectively connected to each other, and the first splicing surface (101) and the outer end surface (104) are connected to each other. The end surface (103), the second joint surface (102) and the inner end surface (104) constitute the four sides of the prefabricated panel body (11), and the prefabricated panel body (11) also includes an upper surface (105) used as a support platform; the first joint surface (101) of the prefabricated panel body (11) is connected to the first joint surface (101) of the adjacent prefabricated panel body (11) through the connection structure (20) to form a straight floating unit panel extending along a straight line; and / or, the first joint surface (101) of the prefabricated panel body (11) is connected to the second joint surface (102) of the adjacent prefabricated panel body (11) through the connection structure (20) to form a curved floating unit panel with a curved curvature; the rail support platform group is connected to the upper surface (105) of the prefabricated panel body (11), and the rail support platform group is used to install the track component; A perfusion cavity is provided between two adjacent prefabricated plate bodies (11); the connection structure (20) comprises a first connection pipe (43) pre-buried in the first prefabricated plate body (11), and a second connection pipe (44) pre-buried in the second prefabricated plate body (11) adjacent to the first prefabricated plate body (11); the first connection pipe (43) and the second connection pipe (44) are both hollow pipes with two ends connected, and the inlet ends of the first connection pipe (43) and the second connection pipe (44) are respectively connected to the corresponding upper surface (105), and the outlet ends of the first connection pipe (43) and the second connection pipe (44) are respectively connected to the corresponding first connection pipe (43). After the splicing surface (101) or the second splicing surface (102) is extended, it is mutually sleeved and clamped in the pouring cavity, and the side walls of the outflow ends of the first connecting pipe (43) and the second connecting pipe (44) are respectively provided with slurry outlet holes (430) communicating with the pouring cavity; the connecting structure (20) also includes 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 slurry outlet holes (430) to the pouring cavity, and the concrete connecting layer (22) covers the outflow end of the first connecting pipe (43) or the second connecting pipe (44); The outer diameter of the first connecting tube (43) is smaller than the outer diameter of the second connecting tube (44), and a buckle (431) is provided on the outer surface of the first connecting tube (43), and a slot (441) matching the buckle (431) is provided on the inner surface of the second connecting tube (44), and the buckle (431) and the slot (441) can be coupled only when the first connecting tube (43) extends into the second connecting tube (44) at a correct angle.

2. An assembly connection construction method, characterized in that: The method for constructing an assembled floating unit plate having the connection structure (20) according to claim 1 comprises the following steps: Marking the position of the floating plate unit block (10) by marking a line on the track foundation, hoisting the pre-processed first floating plate unit block (10) to the position, and adjusting the placement position of the first floating plate unit block (10); Hoisting the second floating plate unit block (10) to the above position, and adjusting the placement position of the second floating plate unit block (10) so that the first connecting pipe (43) and the second connecting pipe (44) are arranged relative to each other; Pushing adjacent floating plate unit blocks (10) closer to each other so that the first connecting pipe (43) and the second connecting pipe (44) are sleeved and clamped together; Concrete is poured from the inlet end of the first connecting pipe (43) or the second connecting pipe (44) to form a concrete connecting column (34) filling the first connecting pipe (43) and the second connecting pipe (44), and a concrete connecting layer (22) filling the pouring cavity and covering the outlet ends of the first connecting pipe (43) and the second connecting pipe (44); According to the above steps, the remaining floating plate unit blocks (10) are positioned and assembled in sequence to form an assembled floating unit plate having the connection structure (20) according to claim 1.

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