CN212335691U

CN212335691U - Longitudinal joint structure of pavement

Info

Publication number: CN212335691U
Application number: CN202020548779.1U
Authority: CN
Inventors: 周义伦; 龙涛; 龙安辉; 向竖帆
Original assignee: Chongqing Yilun Highway Construction Co ltd
Current assignee: Chongqing Yilun Highway Construction Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-01-12
Anticipated expiration: 2030-04-14

Abstract

The utility model relates to a vertical seam structure in road surface relates to road construction's technical field, be provided with seam mechanism in the concatenation seam that includes two at least highways that set up side by side and adjacent highway formed, the highway includes rammer layer, bed course and concrete layer, seam mechanism includes power transmission assembly and waterproof component, power transmission assembly includes the dowel steel, and the dowel steel is a cylinder pole, waterproof component includes waterproof, and waterproof is one end open-ended channel type spare to at the channel type spare bottom towards opening end formation arch, be provided with the opening on the arch and deviate from waterproof open-ended heavy groove, evenly seted up the via hole along perpendicular to concatenation seam length direction in a side of waterproof, wear to be equipped with the dowel steel in the via hole, dowel steel one end butt is fixed a position in the corresponding one side of via hole of waterproof. The method has the advantage that the possibility of slab staggering is reduced due to the fact that the road surfaces on the two sides are stressed together.

Description

Longitudinal joint structure of pavement

Technical Field

The utility model belongs to the technical field of the technique of road construction and specifically relates to a vertical seam structure in road surface is related to.

Background

The joints of the pavement mainly comprise transverse joints and longitudinal joints. The longitudinal joint is divided into a longitudinal shrinkage joint and a longitudinal construction joint, the longitudinal joint is parallel to the center line of the road, and the longitudinal joint of the concrete pavement is arranged to reduce the warping and shrinkage stress of the cement concrete pavement slab caused by temperature change.

Prior art reference application publication No. CN103352047A discloses a method for treating a concrete pavement joint, comprising the steps of: 1. laying a bottom waterproof layer on the base layer, wherein the bottom waterproof layer is positioned right below the expansion joint and the longitudinal joint; 2. paving an intermediate waterproof layer in the expansion joint and the longitudinal joint, wherein the height of the intermediate waterproof layer is higher than that of the concrete pavement layer; 3. and baking, melting and flattening the middle waterproof layer higher than the concrete pavement layer by using a gasoline blowtorch. The invention has the advantage of solving the technical problem of uneven road surface.

The above prior art solutions have the following drawbacks: the concrete modules commonly used for the village and town roads are spliced into double lanes, and a flower stand is not arranged in the middle of the roads, so that the stress is different due to different traffic flow on two sides of the spliced seam, and the phenomenon of wrong road formation caused by different heights of roads on two sides is easily caused by long-time accumulation.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a vertical seam structure in road surface, it has the common atress in messenger's both sides road surface and reduces the advantage that forms the possibility that the wrong platform phenomenon appears.

The above object of the present invention can be achieved by the following technical solutions:

the longitudinal pavement joint structure comprises at least two roads arranged side by side and joint joints formed by adjacent roads, wherein the joint joints are internally provided with joint mechanisms, each road comprises a rammed earth layer, a cushion layer and a concrete layer, each joint mechanism comprises a force transmission assembly and a waterproof assembly, each force transmission assembly comprises a force transmission rod, and each force transmission rod is a cylindrical rod; the waterproof assembly comprises a waterproof piece, the waterproof piece is a groove type piece with an open end, a bulge is formed at the bottom surface of the groove type piece towards the open end, an opening which deviates from a sunk groove of the waterproof piece is arranged in the bulge, a via hole is uniformly formed in one side surface of the waterproof piece along the length direction of the splicing seam perpendicular to the through hole, a dowel bar is arranged in the via hole in a penetrating mode, and one end of the dowel bar is abutted and positioned on one side, corresponding to the via hole, of the waterproof piece.

By adopting the technical scheme, the roads are usually bidirectional lanes, when the roads on two sides are stressed unevenly, the roads on two sides are stressed evenly through the dowel bars, and the phenomenon of slab staggering caused by different stresses of the roads on two sides is avoided; when the splicing seam deforms due to expansion with heat and contraction with cold of the road, the waterproof piece can contract along with the width of the splicing seam; the waterproof part can collect the ponding on road surface, makes the surface ponding still less, guarantees driving safety, prevents simultaneously that ponding from permeating highway ground, reduces the possibility that the road bed damaged.

The present invention may be further configured in a preferred embodiment as: the other end of dowel bar stretches out the via hole and forms the end that stretches out, and the pot head that stretches out of dowel bar is equipped with a sleeve, the sleeve is one end opening and the hollow empty section of thick bamboo of inside, and sleeve length is greater than the length of the end that stretches out of dowel bar, and the sleeve forms the pars contractilis with the dowel bar.

By adopting the technical scheme, the highway can expand with heat and contract with cold under the action of the temperature difference, the dowel bars fixed inside the highway can slide in the telescopic parts, the stress of the dowel bars and the highway is reduced, and the dowel bars are prevented from damaging the highway.

The present invention may be further configured in a preferred embodiment as: and a protective layer is arranged on the inner wall of the waterproof piece.

Through adopting above-mentioned technical scheme, the protective layer can prevent that waterproof from using for a long time by the rainwater corrosion, increases this seam structure's life.

The present invention may be further configured in a preferred embodiment as: the planes of the inner walls of the waterproof parts are vertical in pairs, and the vertical positions are in arc transition.

By adopting the technical scheme, when the road is expanded with heat and contracted with cold, the waterproof part is repeatedly extruded, if the road is in simple right-angle transition, stress concentration is easily caused, the waterproof part is easy to damage, and the stress concentration can be reduced by using the arc transition vertical parts, so that the waterproof part has longer service life.

The present invention may be further configured in a preferred embodiment as: and a water seepage layer is filled in a splicing seam formed by adjacent roads.

Through adopting above-mentioned technical scheme, when having ponding on the highway, can flow into in the waterproof piece through the infiltration layer, make the surface ponding reduce, make the road surface driving safer.

The present invention may be further configured in a preferred embodiment as: a drain pipe is arranged on the side wall of the waterproof piece in a penetrating mode, one end, located in the waterproof piece, of the drain pipe is located right above the protrusion, and the other end of the drain pipe is connected with a drainage system.

Through adopting above-mentioned technical scheme, when the area water is more, ponding that accumulates in the waterproof part passes through the drain pipe and discharges into drainage system, makes the highway have the drainage function of more strengthening the effect.

The present invention may be further configured in a preferred embodiment as: and a fixing sheet for fixing the waterproof piece is arranged on the outer wall of the waterproof piece.

Through adopting above-mentioned technical scheme, install on ground through the stationary blade, make things convenient for the installation location of waterproof.

The present invention may be further configured in a preferred embodiment as: the open end of the sleeve is provided with a flange outwards.

Through adopting above-mentioned technical scheme, telescopic flange can conveniently fix a position, and the sleeve breaks away from when preventing to pour the concrete body simultaneously, makes the sleeve can not keep relative length, causes the dowel steel not to have flexible space.

The present invention may be further configured in a preferred embodiment as: the force transmission assembly is detachably connected with the fixing piece.

By adopting the technical scheme, each part of the joint mechanism can be conveniently transported in a detachable connection mode, the same parts can be exchanged, and only replacement is needed when one part is damaged, so that the construction cost can be reduced.

To sum up, the utility model discloses a following useful technological effect at least:

1. the dowel bars of the force transmission assembly can enable roads on two sides of the splicing seam to be uniformly stressed, and the phenomenon of slab staggering caused by the condition that the roads on two sides are not uniformly stressed is reduced;

2. the waterproof part has the effect of collecting surface ponding, can effectual ponding of speed reduction road surface for ponding can not enter into the ground of highway simultaneously, makes the whole framework of highway remain stable.

Drawings

Fig. 1 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic cross-sectional view of a second embodiment of the present invention.

Reference numerals: 1. a waterproof assembly; 11. a waterproof member; 111. a protrusion; 112. a via hole; 12. a sleeve; 13. a protective layer; 2. a force transfer assembly; 21. a dowel bar; 22. a nut; 3. a drain pipe; 4. a water seepage layer; 5. a highway; 51. tamping a soil layer; 52. a cushion layer; 53. a concrete layer; 531. sinking a groove; 6. a connecting rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1 and 2, the utility model discloses a longitudinal joint structure of road surface, which comprises at least two highways 5 arranged side by side and a joint mechanism located at the joint of two adjacent highways 5.

The seam mechanism includes waterproof component 1 and biography power subassembly 2, and waterproof component 1 is including waterproof 11, and waterproof 11 is the cell type spare of one end opening and lateral wall perpendicular to bottom surface, and cell type waterproof 11 can prevent that the ponding on road surface from permeating the road bed soil horizon through the concatenation seam that 5 lateral walls of adjacent highway formed, makes road surface non-deformable. In order to facilitate the positioning and installation of the waterproof piece 11, a fixing piece is integrally formed or welded and fixed on the side wall of the waterproof piece, and an installation hole is formed in the middle of the fixing piece.

It has coaxial line's via hole 112 evenly to open along splice seam length direction near the edge at waterproof 11 both sides wall, for making waterproof 11 have the elasticity, and form the arch 111 on a perpendicular to ground to waterproof 11's open end at channel type spare bottom surface, protruding 111 bottom surface is opened there is the opening to deviate from waterproof 11 open-ended heavy groove, protruding 111 top is circular-arcly, protruding 111 forms "W" shape with channel-section steel both sides wall, when highway 5 expend with heat and contract with cold, the width change of splice seam can be followed to waterproof 11. In order to increase the rigidity of the waterproof member 11, the waterproof member 11 may be made of a steel material.

Each vertical part of the waterproof part 11 adopts circular arc transition, and the mode of circular arc transition can reduce the stress concentration of the waterproof part 11. A protective layer 13 is bonded in the waterproof part 11, the protective layer 13 can be made of PVC materials, and the protective layer 13 can prevent the telescopic part 11 from being rusted.

Install sleeve 12 in the via hole 112 of one side among waterproof 11, sleeve 12 is one end opening and inside hollow cylinder, has a circumferential flange in the outside extension of the near-to-end of sleeve 12, when installing sleeve 12, makes the blind end orientation pass via hole 112, makes the blind end of sleeve 12 stretch out the outside of channel-section steel lateral wall. The sleeve 12 may be made of hard plastic in consideration of construction costs.

In the other through hole 112 of the flashing 11 is mounted a dowel 21 comprised by a force transfer assembly 2. The dowel bar 21 is a steel bar, a thread is arranged at one end of the dowel bar, one end of the dowel bar 21 is fixed in a through hole 112 on one side surface opposite to the sleeve 12 by two nuts 22 to form a fixed end, and the other end of the dowel bar 21 penetrates through the sleeve 12. In order to enable the dowel bar 21 to slide relatively in the sleeve 12, round steel with different diameters can be selected for the dowel bar 21 according to the stress.

Because of the influence of the temperature difference, the highway 5 can generate the phenomenon of expansion with heat and contraction with cold, and in order to make the dowel bar 21 have the space of moving along the driving direction after the highway 5 is poured in the later stage, the length of the sleeve 12 needs to be greater than the length of the extending end of the dowel bar 21.

After the roads 5 on the two sides of the waterproof component 1 are poured, the roads 5 on the two sides of the waterproof component 1 form a splicing seam, and a water seepage layer 4 is filled in the splicing seam. The water seepage layer 4 can be filled with asphalt water seepage concrete, and can bear the rolling of an automobile while meeting the water seepage function.

In order to conveniently drain the surface water collected by the waterproof part 11, a drain pipe 3 is communicated with the bottom of the bulge 111 of the waterproof part 11, and one end of the drain pipe 3 extending out of the waterproof part 11 permeates into the water seepage layer 4, and the other end of the drain pipe 3 is connected into a drainage system.

The use process of the pavement longitudinal joint structure is as follows:

the road 5 comprises a rammed earth layer 51, a bedding layer 52 and a concrete layer 53, wherein the bedding layer 52 can be laid by using broken stones. During construction, a rammed earth layer 51 and a cushion layer 52 are laid in sequence, and then the wire is placed and positioned and fixed in a mounting hole of a fixing sheet by using a screw or an anchor rod; installing the waterproof part 11, and penetrating the closed end of the sleeve 12 from a through hole 112 of one side wall in the groove of the waterproof part 11, wherein the flange of the sleeve 12 is abutted against the inside of the waterproof part 11; installing a nut 22 at the end, provided with the thread, of the dowel bar 21, penetrating the end, provided with the nut 22, of the dowel bar 21 through a through hole 112, opposite to the sleeve 12, installed on the waterproof part 11, continuously moving the dowel bar 21 for a certain distance, reversely moving the dowel bar 21, penetrating the end, far away from the installation nut 22, of the dowel bar 21 into the sleeve 12, installing another nut 22 at the extending end of the thread part of the dowel bar 21, and fixing the dowel bar 21 on the side wall of the waterproof part 11; when the roads 5 on two sides of the waterproof assembly 1 are poured, a stop block which is the same as a splicing seam formed by the roads 5 is bonded at the position of the bulge 111 of the waterproof piece 11 and faces the opening end of the waterproof piece 11, and then concrete can be poured. After the concrete layer 53 is poured, the side face of the waterproof part 11, which is provided with the fixed end of the dowel bar 21, is fixed in the highway 5, the dowel bar 21 and the sleeve 12 are embedded in the highway 5, the stop block is removed, and the splicing seam is filled with the asphalt concrete permeable layer 4.

Embodiment two, refer to fig. 3, do the utility model discloses a vertical seam structure in road surface, it lies in with embodiment one difference: when a concrete layer of a road is poured, an undercut 531 with the width larger than that of the splicing seam is formed above the splicing seam, a connecting rod 6 perpendicular to the splicing seam is poured and fixed in the undercut 531, the connecting rod 6 can be made of deformed steel bars with different diameters, the splicing seam and the undercut 531 are filled and compacted when the water seepage layer 4 is filled, and the road 5 on two sides of the splicing seam is connected and fixed, and other steps are the same as those in the first embodiment.

Compared with the first embodiment, the first embodiment has the advantages that the connecting rod 6 is used for connecting the highway in the scheme, the structure of the splicing seam of the highway after construction is more stable, and the sink groove 531 is more beneficial to collecting accumulated water on the road surface.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Vertical seam structure in road surface is provided with seam mechanism in the concatenation seam that includes two at least highway (5) that set up side by side and adjacent highway (5) formation, highway (5) are including rammed earth layer (51), bed course (52) and concrete layer (53), its characterized in that: seam mechanism is including biography power subassembly (2) and waterproof component (1), biography power subassembly (2) is including dowel steel (21), dowel steel (21) are a cylinder pole, waterproof component (1) is including waterproof (11), waterproof (11) are one end open-ended channel type spare, and form a arch (111) towards the opening end at the channel type spare bottom surface, be provided with the opening on arch (111) and deviate from waterproof (11) open-ended heavy groove, evenly seted up via hole (112) along perpendicular to concatenation seam length direction in a side of waterproof (11), wear to be equipped with dowel steel (21) in via hole (112), dowel steel (21) one end butt location is in the corresponding one side of via hole (112) of waterproof (11).

2. The longitudinal pavement joint structure according to claim 1, characterized in that: the other end of dowel steel (21) stretches out via hole (112) and forms and stretches out the end, and the pot head that stretches out of dowel steel (21) is equipped with a sleeve (12), sleeve (12) are one end opening and inside hollow empty section of thick bamboo, and sleeve (12) length is greater than the length of the end that stretches out of dowel steel (21), and sleeve (12) and dowel steel (21) form the pars contractilis.

3. The longitudinal pavement joint structure according to claim 1, characterized in that: and a protective layer (13) is arranged on the inner wall of the waterproof piece (11).

4. The longitudinal pavement joint structure according to claim 1, characterized in that: the planes of the inner walls of the waterproof pieces (11) are vertical in pairs, and the vertical positions are in arc transition.

5. The longitudinal pavement joint structure according to claim 1, characterized in that: and a water seepage layer (4) is filled in a splicing seam formed by adjacent roads (5).

6. The longitudinal pavement joint structure according to claim 1, characterized in that: a drain pipe (3) is arranged on the side wall of the waterproof part (11) in a penetrating mode, one end, located in the waterproof part (11), of the drain pipe (3) is located right above the bulge (111), and the other end of the drain pipe (3) is connected with a drainage system.

7. The longitudinal pavement joint structure according to claim 1, characterized in that: the outer wall of the waterproof piece (11) is provided with a fixing piece for fixing the waterproof piece (11).

8. The longitudinal pavement joint structure according to claim 2, characterized in that: the open end of the sleeve (12) is provided with a flange outwards.

9. The longitudinal pavement joint structure according to claim 1, characterized in that: the force transmission assembly (2) is detachably connected with the waterproof piece (11).