Composite pavement structure for road, bridge and tunnel sections

Abstract

The utility model discloses a road bridge and tunnel section composite pavement structure which comprises a roadbed, a concrete base layer is arranged on the top of the roadbed, inclined diversion trenches are formed in the top of the concrete base layer at equal intervals, an isolation layer is arranged on the top of the concrete base layer, and a gravel layer is arranged on the top of the isolation layer. A gravel layer is arranged on the top of the roadbed, a pervious concrete layer is arranged on the top of the gravel layer, an asphalt pavement layer is arranged on the top of the pervious concrete layer, prefabricated drainage components are arranged on the two sides of the top of the roadbed, and drainage channels are formed in the prefabricated drainage components. The utility model relates to the technical field of road bridge and tunnel pavement structures, and solves the problems in the prior art that the pavement drainage performance of a road bridge and tunnel section is poorer, and under extreme weather conditions such as rainstorm or continuous rainfall, unsmooth drainage is easy to occur to cause pavement water accumulation, so that not only is the driving safety influenced, but also major traffic accidents are possibly caused.

Description

Technical Field

[0001] The utility model relates to the technical field of road bridge and tunnel pavement structures, in particular to a composite pavement structure of a road bridge and tunnel section. Background Art

[0002] Road bridges and tunnels are an important part of highway transportation. In existing technologies, the pavement drainage performance of road bridge and tunnel sections is poor. Under extreme weather conditions, such as heavy rain or continuous precipitation, poor drainage is prone to cause road waterlogging, which not only affects driving safety but may also cause major traffic accidents. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the utility model provides a composite pavement structure for road bridge and tunnel sections, which solves the problem in the existing technology that the pavement drainage performance of road bridge and tunnel sections is poor. Under extreme weather conditions, such as heavy rain or continuous precipitation, poor drainage is prone to cause road waterlogging, which not only affects driving safety but may also cause major traffic accidents.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a composite pavement structure of a road bridge and tunnel section, including a roadbed, a concrete base layer is provided on the top of the roadbed, an inclined guide groove is provided at equal intervals on the top of the concrete base layer, an isolation layer is provided on the top of the concrete base layer, a gravel layer is provided on the top of the isolation layer, a permeable concrete layer is provided on the top of the gravel layer, an asphalt pavement layer is provided on the top of the permeable concrete layer, prefabricated drainage components are provided on both sides of the top of the roadbed, a drainage channel is provided inside the prefabricated drainage component, drainage outlets are provided at equal intervals on the side of the prefabricated drainage component close to the concrete base layer, the drainage outlets are connected to the end of the inclined guide groove, ditch covers are provided at equal intervals on the top of the prefabricated drainage component, and first drainage holes are provided at equal intervals inside the ditch cover.

[0005] Preferably, the inner wall of the drain outlet is connected with a pre-buried pipe fitting, and the pre-buried pipe fitting is fixedly connected with a baffle on the side close to the inclined guide groove, and a second drainage hole is equidistantly arranged inside the baffle, and convex edges are provided on both sides of the inner wall of the prefabricated drainage component, and an isolation net is provided on the top of the convex edge inside the prefabricated drainage component.

[0006] Preferably, both sides of the top of the inner wall of the prefabricated drainage component are provided with limiting grooves, the ditch cover is connected to the limiting grooves, and both sides of the bottom of the ditch cover are provided with vertical plates, and the vertical plates are connected to the prefabricated drainage component.

[0007] Preferably, transverse pre-embedded steel bars are equidistantly embedded in the interior of the concrete base layer, and longitudinal pre-embedded steel bars are equidistantly embedded in the interior of the concrete base layer.

[0008] Preferably, connecting bars are equidistantly embedded on one side of the precast drainage member close to the concrete base layer, and the connecting bars are fixedly connected to the transverse embedded steel bars and the longitudinal embedded steel bars respectively.

[0009] The utility model provides a composite pavement structure for road and bridge-tunnel sections. It has the following beneficial effects: In this composite pavement structure for road and bridge-tunnel sections, through the cooperation among the roadbed, the concrete base layer, the inclined drainage trough, the isolation layer, the gravel layer, the permeable concrete layer, the asphalt pavement layer, the precast drainage member, the drainage channel, the drainage outlet, the drainage ditch cover plate and the first drainage hole, by using cushion materials with strong water permeability, the water permeability efficiency of the road surface can be improved, and drainage channels are arranged on both sides of the road surface to form the drainage system of the road surface. In rainy weather, rainwater can quickly penetrate downward, and through the inclined drainage trough and the drainage outlet, the accumulated rainwater is drained into the interior of the precast drainage member, effectively discharging and collecting the rainwater infiltrating under the road surface. And in extreme weather, the rainwater accumulated on the road surface can be quickly discharged into the precast drainage members on both sides of the road surface, which can improve the water permeability and drainage efficiency of the road surface, and then improve the drainage performance of the road and bridge-tunnel, and can avoid water accumulation on the road surface in extreme weather conditions, which helps to improve driving safety in extreme weather and reduce the occurrence probability of traffic accidents.

[0010] Through the cooperation among the concrete base layer, the inclined drainage trough, the precast drainage member, the drainage outlet, the embedded pipe fittings, the baffle plate, the second drainage hole, the convex edge and the isolation net, by embedding drainage pipe fittings at the drainage outlet, the scouring and erosion of the drainage outlet caused by drainage can be reduced, and the baffle plate can block the gravel at the end of the inclined drainage trough. At the same time, through the isolation formed by the isolation net inside the precast drainage member, the sundries entering the precast drainage member are effectively intercepted at the top of the isolation net, and then effectively prevent impurities such as gravel from entering the drainage system, which can avoid blockage of the drainage channel or damage to the foundation caused by drainage scouring, thus ensuring the drainage performance of the drainage system, and this can effectively reduce the maintenance frequency of the road surface drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the external view schematic diagram of the utility model;

[0012] Figure 2 is the external view schematic diagram of the precast drainage member, the drainage channel and the drainage outlet in the utility model;

[0013] Figure 3 is the external view schematic diagram of the embedded pipe fittings, the baffle plate and the second drainage hole in the utility model;

[0014] Figure 4 is Figure 1 the partial enlarged view of area A in

[0015] Figure 5 is Figure 1 A partial enlarged view of area B in the figure.

[0016] In the figure: 1, subgrade; 2, concrete base course; 3, inclined drainage trough; 4, isolation layer; 5, gravel layer; 6, permeable concrete layer; 7, asphalt pavement layer; 8, precast drainage component; 9, drainage channel; 10, drainage outlet; 11, drainage ditch cover plate; 12, first drainage hole; 13, embedded pipe fitting; 14, baffle; 15, second drainage hole; 16, convex edge; 17, isolation net; 18, limit groove; 19, vertical plate; 20, transverse embedded steel bar; 21, longitudinal embedded steel bar; 22, connecting bar. Specific implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] In the prior art, the drainage performance of the road surface in the road and bridge tunnel section is poor. Under extreme weather conditions, such as heavy rain or continuous precipitation, it is easy to have poor drainage and cause water accumulation on the road surface, which not only affects driving safety but also may lead to major traffic accidents.

[0019] In view of this, the present invention provides a composite road surface structure for the road and bridge tunnel section. Through the cooperation among the subgrade, concrete base course, inclined drainage trough, isolation layer, gravel layer, permeable concrete layer, asphalt pavement layer, precast drainage component, drainage channel, drainage outlet, drainage ditch cover plate and the first drainage hole, a cushion material with strong water permeability is adopted to improve the water permeability efficiency of the road surface, and a drainage system is arranged on both sides of the road surface. In rainy weather, rainwater quickly penetrates downward, accumulates above the concrete base course, and the accumulated rainwater is drained into the interior of the precast drainage component through the inclined drainage trough and the drainage outlet, effectively discharging and collecting the rainwater infiltrating under the road surface. And in extreme weather, the rainwater accumulated on the road surface can quickly be discharged into the precast drainage components on both sides of the road surface, improving the water permeability and drainage efficiency of the road surface, thereby improving the drainage performance of the road and bridge tunnel, avoiding water accumulation on the road surface in extreme weather, improving driving safety in extreme weather, and reducing the occurrence probability of traffic accidents.

[0020] Persons skilled in the art shall connect all the electrical components in this case to their adapted power supplies through wires, and appropriate controllers and encoders shall be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference shall be made to the sequence of operations among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be given.

[0021] It can be seen from Figure 1-5 that a composite pavement structure for road and bridge-tunnel sections includes a roadbed 1, where the roadbed 1 is the bottom base layer of the road and bridge-tunnel pavement. A concrete base layer 2 is provided on the top of the roadbed 1. Inclined diversion grooves 3 are equidistantly arranged on the top of the concrete base layer 2. An isolation layer 4 is provided on the top of the concrete base layer 2. A gravel layer 5 is provided on the top of the isolation layer 4. A permeable concrete layer 6 is provided on the top of the gravel layer 5. An asphalt pavement layer 7 is provided on the top of the permeable concrete layer 6. Prefabricated drainage components 8 are provided on both sides of the top of the roadbed 1. A drainage channel 9 is provided inside the prefabricated drainage component 8. Drainage ports 10 are equidistantly arranged on one side of the prefabricated drainage component 8 close to the concrete base layer 2. The drainage ports 10 are communicated with the ends of the inclined diversion grooves 3. Drainage ditch covers 11 are equidistantly arranged on the top of the prefabricated drainage component 8. First drainage holes 12 are equidistantly opened inside the drainage ditch covers 11;

[0022] In the specific implementation process, it is particularly worth noting that through the cooperation among the roadbed 1, the concrete base layer 2, the isolation layer 4, the gravel layer 5, the permeable concrete layer 6, the asphalt pavement layer 7 and the precast drainage component 8, the main structure of the road and bridge-tunnel pavement is formed, and a drainage system is arranged on both sides of the pavement to improve the drainage performance of the road and bridge-tunnel pavement. Among them, the roadbed 1 is the bottom base layer of the road and bridge-tunnel pavement, and the concrete base layer 2 is used to improve the bearing capacity and stability of the road and bridge-tunnel pavement. The isolation layer 4 adopts a mesh structure to isolate the concrete base layer 2 and the gravel layer 5. The gravel layer 5 is used to improve the drainage and permeability of the pavement and reduce the pressure on the lower structure, thereby extending the service life of the road. The permeable concrete layer 6 is composed of specially proportioned aggregates, cement, water-based resins, etc., and has a high porosity, which can effectively collect and guide rainwater infiltration. The asphalt pavement layer 7 is the surface layer of the road and bridge-tunnel pavement, providing a good driving interface for vehicles, reducing noise and vibration. Through the cooperation among the concrete base layer 2, the inclined diversion trough 3, the precast drainage component 8, the drainage channel 9 and the drainage outlet 10, in rainy weather, rainwater infiltrates downward through the permeable concrete layer 6 and the gravel layer 5, accumulates above the concrete base layer 2, and the accumulated rainwater is drained into the interior of the precast drainage component 8 through the inclined diversion trough 3 and the drainage outlet 10, effectively collecting the infiltrated rainwater and discharging it through the drainage channel 9, thereby improving the drainage performance of the road and bridge-tunnel. Through the cooperation among the precast drainage component 8, the drain cover plate 11 and the first drainage hole 12, the precast drainage component 8 is covered by the drain cover plate 11, and the drain cover plate 11 is flush with the pavement. In extreme weather, rainwater quickly enters the interior of the precast drainage component 8 through the first drainage hole 12, improving the drainage performance of the road and bridge-tunnel. Through the cooperation among the roadbed 1, the concrete base layer 2, the inclined diversion trough 3, the isolation layer 4, the gravel layer 5, the permeable concrete layer 6, the asphalt pavement layer 7, the precast drainage component 8, the drainage channel 9, the drainage outlet 10, the drain cover plate 11 and the first drainage hole 12, a cushion material with strong water permeability is adopted to improve the water permeability efficiency of the pavement, and a drainage system is arranged on both sides of the pavement. In rainy weather, rainwater quickly infiltrates downward, accumulates above the concrete base layer 2, and the accumulated rainwater is drained into the interior of the precast drainage component 8 through the inclined diversion trough 3 and the drainage outlet 10, effectively discharging and collecting the infiltrated rainwater on the pavement. And in extreme weather, the rainwater accumulated on the road surface can quickly be discharged into the precast drainage components 8 on both sides of the road surface, improving the water permeability and drainage efficiency of the pavement, thereby improving the drainage performance of the road and bridge-tunnel, avoiding road surface water accumulation of the road and bridge-tunnel in extreme weather, improving the driving safety in extreme weather, and reducing the occurrence probability of traffic accidents;

[0023] Further, an embedded pipe fitting 13 is connected in a mating manner to the inner wall of the drain outlet 10. A baffle 14 is fixedly connected to one side of the embedded pipe fitting 13 close to the inclined diversion groove 3. A plurality of second drain holes 15 are equidistantly arranged inside the baffle 14. Convex edges 16 are arranged on both sides of the inner wall of the precast drainage member 8. A separation net 17 is arranged at the top of the precast drainage member 8 inside the convex edges 16;

[0024] In the specific implementation process, it is particularly worth noting that through the cooperation among the concrete base layer 2, the inclined diversion groove 3, the precast drainage member 8, the drain outlet 10, the embedded pipe fitting 13, the baffle 14 and the second drain holes 15, by embedding a drainage pipe fitting at the drain outlet 10 of the precast drainage member 8, the erosion and scouring of the drain outlet 10 of the precast drainage member 8 caused by rainwater are reduced. And the baffle 14 blocks gravel at the end of the inclined diversion groove 3, effectively preventing impurities such as gravel from entering the drainage system, avoiding clogging of the drainage system and damage to the foundation caused by drainage scouring. Through the cooperation among the precast drainage member 8, the convex edges 16 and the separation net 17, the separation net 17 is supported by the convex edges 16, forming a separation inside the precast drainage member 8, so that the sundries entering the precast drainage member 8 are effectively intercepted at the top of the separation net 17, avoiding clogging or damage to the drainage channel 9, ensuring the drainage performance of the drainage system and improving the convenience of maintaining the drainage system. Through the cooperation among the concrete base layer 2, the inclined diversion groove 3, the precast drainage member 8, the drain outlet 10, the embedded pipe fitting 13, the baffle 14, the second drain holes 15, the convex edges 16 and the separation net 17, by embedding a drainage pipe fitting at the drain outlet 10, the erosion and scouring of the drain outlet 10 caused by drainage are reduced, and the baffle 14 blocks gravel at the end of the inclined diversion groove 3. At the same time, a separation is formed inside the precast drainage member 8 by the separation net 17, so that the sundries entering the precast drainage member 8 are effectively intercepted at the top of the separation net 17, effectively preventing impurities such as gravel from entering the drainage system, avoiding clogging or damage to the drainage channel 9 caused by drainage scouring, ensuring the drainage performance of the drainage system and reducing the maintenance frequency of the road surface drainage system;

[0025] Further, limiting grooves 18 are arranged on both sides of the top of the inner wall of the precast drainage member 8. The drain channel cover plate 11 is connected in a mating manner with the limiting grooves 18. Vertical plates 19 are arranged on both sides of the bottom of the drain channel cover plate 11. The vertical plates 19 are connected in a mating manner with the precast drainage member 8;

[0026] In the specific implementation process, it is particularly worth noting that through the cooperation among the precast drainage member 8, the gully cover plate 11, the limiting groove 18 and the vertical plate 19, by arranging the limiting groove 18 at the top of the precast drainage member 8, when the gully cover plate 11 covers the top of the precast drainage member 8, it can be accurately embedded inside the limiting groove 18, and through the limitation between the vertical plate 19 and the inner wall of the precast drainage member 8, the installation stability of the gully cover plate 11 and the aesthetics of the road drainage system are improved. When being rolled or impacted, it can effectively prevent the gully cover plate 11 from being lifted or displaced, ensuring the safe passage of pedestrians and vehicles, and by keeping the top of the gully cover plate 11 flush with the top of the precast drainage member 8, it ensures that rainwater can smoothly enter the interior of the precast drainage member 8, improving the drainage efficiency;

[0027] Furthermore, transverse embedded steel bars 20 are equidistantly embedded inside the concrete base layer 2 at equal intervals, and longitudinal embedded steel bars 21 are equidistantly embedded inside the concrete base layer 2 at equal intervals;

[0028] In the specific implementation process, it is particularly worth noting that through the cooperation among the concrete base layer 2, the transverse embedded steel bars 20 and the longitudinal embedded steel bars 21, by using the intertwined layout of the transverse embedded steel bars 20 and the longitudinal embedded steel bars 21, a stable internal skeleton is constructed, improving the structural strength of the concrete base layer 2, and enhancing the overall bearing capacity, crack resistance, earthquake resistance and durability of the road surface;

[0029] Furthermore, connecting bars 22 are equidistantly embedded on one side of the precast drainage member 8 close to the concrete base layer 2, and the connecting bars 22 are fixedly connected to the transverse embedded steel bars 20 and the longitudinal embedded steel bars 21 respectively;

[0030] In the specific implementation process, it is particularly worth noting that through the cooperation among the concrete base layer 2, the precast drainage member 8, the transverse embedded steel bars 20, the longitudinal embedded steel bars 21 and the connecting bars 22, by connecting and fixing the connecting bars 22 of the precast drainage member 8 with the steel bar embedded mesh inside the concrete base layer 2, the precast drainage member 8 is tightly combined with the concrete base layer 2, ensuring the stability of the precast drainage member 8.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0032] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A composite pavement structure for road bridge and tunnel sections, comprising a roadbed (1), characterized in that: At the top of the subgrade (1), a concrete base layer (2) is provided. At equal intervals on the top of the concrete base layer (2), inclined diversion channels (3) are provided. On the top of the concrete base layer (2), an isolation layer (4) is provided. On the top of the isolation layer (4), a gravel layer (5) is provided. On the top of the gravel layer (5), a permeable concrete layer (6) is provided. On the top of the permeable concrete layer (6), an asphalt pavement layer (7) is provided. On both sides of the top of the subgrade (1), precast drainage components (8) are provided. Inside the precast drainage components (8), drainage channels (9) are provided. At equal intervals on the side of the precast drainage components (8) close to the concrete base layer (2), drainage openings (10) are provided. The drainage openings (10) are communicated with the ends of the inclined diversion channels (3). At equal intervals on the top of the precast drainage components (8), drain covers (11) are provided. Inside the drain covers (11), first drainage holes (12) are provided at equal intervals.

2. The composite pavement structure for road bridge and tunnel sections according to claim 1, characterized in that: An embedded pipe fitting (13) is connected in a matching manner with the inner wall of the drainage opening (10). A baffle (14) is fixedly connected to the side of the embedded pipe fitting (13) close to the inclined diversion channel (3). Second drainage holes (15) are provided at equal intervals inside the baffle (14). On both sides of the inner wall of the precast drainage components (8), convex edges (16) are provided. Inside the precast drainage components (8), on the top of the convex edges (16), an isolation net (17) is provided.

3. A composite pavement structure for road and bridge-tunnel sections according to claim 1, characterized in that: On both sides of the top of the inner wall of the precast drainage components (8), limit grooves (18) are provided. The drain covers (11) are connected with the limit grooves (18) in a matching manner. On both sides of the bottom of the drain covers (11), vertical plates (19) are provided. The vertical plates (19) are connected with the precast drainage components (8) in a matching manner.

4. A composite pavement structure for road and bridge-tunnel sections according to claim 1, characterized in that: Transverse embedded steel bars (20) are embedded at equal intervals inside the concrete base layer (2). Longitudinal embedded steel bars (21) are embedded at equal intervals inside the concrete base layer (2).

5. A composite pavement structure for road and bridge-tunnel sections according to claim 4, characterized in that: Connecting bars (22) are embedded at equal intervals on the side of the precast drainage components (8) close to the concrete base layer (2). The connecting bars (22) are fixedly connected with the transverse embedded steel bars (20) and the longitudinal embedded steel bars (21) respectively.

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