CN215405359U - Lane pavement structure - Google Patents
Lane pavement structure Download PDFInfo
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- CN215405359U CN215405359U CN202121300157.8U CN202121300157U CN215405359U CN 215405359 U CN215405359 U CN 215405359U CN 202121300157 U CN202121300157 U CN 202121300157U CN 215405359 U CN215405359 U CN 215405359U
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Abstract
The utility model discloses a lane pavement structure which comprises a newly-built motor vehicle lane and a newly-built non-motor vehicle lane, wherein the newly-built motor vehicle lane is respectively provided with a stone powder slag cushion layer, a cement-stabilized macadam lower base layer, a cement-stabilized macadam upper base layer, a modified emulsified asphalt slurry seal layer, a coarse-grained asphalt concrete lower surface layer, a lower adhesive layer, a SBS modified medium-grained asphalt concrete adhesive layer middle surface layer, an upper adhesive layer and a rubber modified fine-grained asphalt concrete upper surface layer from bottom to top, wherein the stone powder slag cushion layer, the cement-stabilized macadam lower base layer and the cement-stabilized macadam upper base layer extend to the lower part of the newly-built non-motor vehicle lane. Because the modified emulsified asphalt slurry seal is additionally arranged, the waterproof effect is good, and the seeping of the accumulated water on the road surface into the roadbed can be effectively prevented; because the asphalt concrete layer adopts a three-layer structure, the stone granularity is gradually reduced from bottom to top, and the problems of easy damage and cracking of the pavement are solved.
Description
Technical Field
The utility model relates to the technical field of road construction, in particular to a lane pavement structure.
Background
Municipal works refer to municipal facility construction works, municipal facilities in China refer to various buildings, structures, equipment and the like which are arranged in urban areas and town planning construction ranges and provide paid or unpaid public products and services for residents based on government responsibilities and obligations, and various public infrastructure constructions matched with urban lives belong to the municipal engineering categories, such as common urban roads, bridges and subways, such as various pipelines closely related to life: rainwater, sewage, water supply, reclaimed water, electric power, telecommunication, heating power, gas and the like, and the construction of squares, urban greening and the like belong to the municipal engineering category. The asphalt composite road pavement is an important content in urban road municipal engineering, and the municipal road needs to meet daily traffic of non-motor vehicles and pedestrians due to more vehicles, so that higher requirements are provided for the structural strength of the road pavement. Therefore, the asphalt road pavement structure with a single structure is difficult to meet the increasing requirements, and in order to solve the problems of pavement damage, cracking and the like, the composite pavement structure needs to be developed and designed, so that a novel asphalt composite road pavement structure is provided, the service life of the municipal road is prolonged, and the road maintenance cost is reduced. On the other hand, in the conventional town road pavement structure, the joint position of the main body part of the road and the lateral sidewalk part is not properly processed, so that the structural strength of the joint position is obviously reduced compared with that of other positions, and the problem of collapse of the edge position of the road is easily caused.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a roadway structure, which solves one or more of the problems of the prior art, and provides at least one of the advantages of the present invention.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
the lane pavement structure comprises a newly-built motor vehicle lane and a newly-built non-motor vehicle lane, wherein the newly-built motor vehicle lane is respectively provided with a stone powder slag cushion layer, a cement-stabilized macadam lower base layer, a cement-stabilized macadam upper base layer, a modified emulsified asphalt slurry seal layer, a coarse-grain asphalt concrete lower base layer, a lower adhesive layer, an SBS modified medium-grain asphalt concrete adhesive layer middle surface layer, an upper adhesive layer and a rubber modified fine-grain asphalt concrete upper surface layer from bottom to top, wherein the stone powder slag cushion layer, the cement-stabilized macadam lower base layer and the cement-stabilized macadam upper base layer extend to the lower part of the newly-built non-motor vehicle lane.
Furthermore, a vertical kerb is arranged between the newly built motor vehicle lane and the newly built non-motor vehicle lane, a cast-in-place concrete backrest is arranged on one side of the vertical kerb, a cement mortar layer with the thickness of 3cm is arranged between the vertical kerb and the cement stabilized macadam upper base layer, a flat kerb is arranged between the newly built motor vehicle lane and the vertical kerb, the flat kerb is laid on the mortar layer, the mortar layer is laid on a stone concrete layer, and the stone concrete layer is laid on the cement stabilized macadam upper base layer of the newly built motor vehicle lane.
Further, the newly-built non-motor vehicle lane is respectively a 15cm thick cement-stabilized macadam lower base layer, a 15cm thick cement-stabilized macadam upper base layer, a 1cm thick modified emulsified asphalt slurry seal layer, a 7cm thick coarse grain type asphalt concrete layer, an adhesive layer and a 4cm medium grain type modified asphalt concrete layer from bottom to top.
Further, the thickness of the stone powder slag cushion layer is 15 cm.
Further, the thickness of the cement-stabilized macadam lower base layer is 20 cm.
Further, the thickness of the cement-stabilized macadam upper base layer is 20 cm.
Further, the thickness of the modified emulsified asphalt slurry seal is 1 cm.
Further, the thickness of the coarse-grained asphalt concrete lower surface layer is 7 cm.
Further, the thickness of the surface layer in the SBS modified medium-grain asphalt concrete adhesive layer is 5 cm.
Further, the thickness of the upper surface layer of the rubber modified fine particle type asphalt concrete is 4 cm.
The utility model has the beneficial effects that:
the stone powder slag cushion layer, the cement stabilized macadam lower base layer and the cement stabilized macadam upper base layer in the newly-built motor vehicle lane extend to the lower part of the newly-built motor vehicle lane, so that the road surface is more stable and firm, and the problem of collapse of the edge position of the road is solved;
because the modified emulsified asphalt slurry seal is additionally arranged, the waterproof effect is good, and the seeping of the accumulated water on the road surface into the roadbed can be effectively prevented;
because the asphalt concrete layer adopts a three-layer structure, the stone granularity is gradually reduced from bottom to top, and the problems of easy damage and cracking of the pavement are solved.
Drawings
The utility model is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation, and for a person skilled in the art, without inventive effort, further drawings may be obtained from the following figures:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a stone powder slag cushion layer; 2. cement stabilized macadam lower base; 3. an upper base layer of cement stabilized macadam; 4. sealing the modified emulsified asphalt slurry; 5. a coarse grain asphalt concrete lower surface layer; 6. a lower adhesive layer; 7. a middle surface layer of SBS modified medium-grain asphalt concrete adhesive layer; 8. an upper adhesive layer; 9. a rubber modified fine particle type asphalt concrete upper surface layer; 10. erecting a kerb stone; 11. casting a concrete backrest in situ; 12. a cement mortar layer; 13. a flat kerbstone; 14. a mortar layer; 15. a stone concrete layer; 16. 15cm thick cement stabilized macadam lower base; 17. 15cm thick cement stabilized macadam upper base; 18. sealing a modified emulsified asphalt slurry layer with the thickness of 1 cm; 19. a coarse-grained asphalt concrete layer with the thickness of 7 cm; 20. an adhesive layer; 21. 4cm medium grain type modified asphalt concrete layer.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
As shown in figure 1, the lane pavement structure comprises a newly-built motor vehicle lane and a newly-built non-motor vehicle lane, wherein the newly-built motor vehicle lane is respectively provided with a stone powder slag cushion layer 1, a cement stabilized macadam lower base layer 2, a cement stabilized macadam upper base layer 3, a modified emulsified asphalt slurry seal layer 4, a coarse grain type asphalt concrete lower surface layer 5, a lower adhesive layer 6, an SBS modified medium grain type asphalt concrete adhesive layer middle surface layer 7, an upper adhesive layer 8 and a rubber modified fine grain type asphalt concrete upper surface layer 9 from bottom to top. Wherein, the thickness of stone dust sediment bed course 1 is 15cm, the thickness of basic unit 2 is 20cm under the cement stable rubble, the thickness of cement stable rubble upper strata base 3 is 20cm, the thickness of modified emulsified asphalt slurry seal 4 is 1cm, the thickness of coarse grain formula asphalt concrete lower surface course 5 is 7cm, the thickness of SBS modified medium grain formula asphalt concrete adhesion course middle surface course 7 is 5cm, the thickness of rubber modified fine grain formula asphalt concrete upper surface course 9 is 4 cm.
Wherein, the stone powder slag cushion layer 1, the cement stabilized macadam lower base layer 2 and the cement stabilized macadam upper base layer 3 extend to the lower part of the newly-built non-motor vehicle lane. The mixture ratio (weight ratio) of the stone powder slag cushion layer is as follows: cement: stone powder: stone chips 6:29: 65.
The upper and lower adhesive layers may be formed of, for example, SBS (styrene-butadiene-styrene block copolymer) modified emulsified asphalt.
Because the modified emulsified asphalt slurry seal is additionally arranged, the waterproof effect is good, and the seeping of the accumulated water on the road surface into the roadbed can be effectively prevented.
The coarse grain type asphalt concrete lower surface layer 5, the SBS modified medium grain type asphalt concrete adhesive layer middle surface layer 7 and the rubber modified fine grain type asphalt concrete upper surface layer 9 form a three-layer structure, the stone granularity is gradually reduced from bottom to top, and the problems that a road surface is easy to damage and crack are solved.
Be equipped with between newly-built motor vehicle way and the newly-built non-motor vehicle way and found the kerbstone 10, one side of founding the kerbstone 10 is equipped with cast-in-place concrete back 11, be equipped with 3cm thick cement mortar layer 12 between founding the kerbstone 10 and the cement stabilized macadam upper basal layer 3, be equipped with flat kerbstone 13 between newly-built motor vehicle way and the founding kerbstone 10, flat kerbstone 13 is laid on mortar layer 14, mortar layer 14 is laid on stone concrete layer 15, stone concrete layer 15 is laid on the cement stabilized macadam upper basal layer 3 of newly-built motor vehicle way.
The newly-built non-motor vehicle lane is respectively provided with a cement stabilized macadam lower base layer 16 with the thickness of 15cm, a cement stabilized macadam upper base layer 17 with the thickness of 15cm, a modified emulsified asphalt slurry seal layer 18 with the thickness of 1cm, a coarse grain type asphalt concrete layer 19 with the thickness of 7cm, an adhesive layer 20 and a medium grain type modified asphalt concrete layer 21 with the thickness of 4cm from bottom to top.
This patent is in the work progress, before the asphalt concrete of motor vehicle lane paves, and road clearance basic unit thick scattering 1cm modified emulsified asphalt slurry seal.
When the asphalt concrete is paved, the construction requirements are as follows:
mixing: the asphalt mixture is mixed by adopting a 100T/h asphalt mixture mixing device, the materials are mixed according to the production mixing proportion strictly, the mixing time is determined by trial mixing according to specific conditions, and the degree of uniform asphalt and uniformly fruit-coated aggregate is high. The discharge temperature is controlled not to be higher than 180 ℃, and the mixture above the temperature is discarded. The sampling is matched with the field management special workers to be delivered to entrusted detection units for detection, the asphalt mixture is uniform, and unqualified asphalt mixtures such as waste materials, overfire materials, agglomeration, blocking or serious coarse and fine material separation are avoided.
And (3) transportation: the 13T self-discharging vehicle is adopted for transportation, each asphalt mixture is transported by a single vehicle, the bottom of the vehicle is cleaned and sprayed with water mixed liquid before the mixture is loaded on the vehicle, residual liquid cannot be accumulated at the bottom of a carriage, and when the mixture is loaded onto the material transporting vehicle from the mixing machine, the position of the vehicle is moved for many times, the loading is balanced, and the segregation of the mixture is reduced. After charging, the upper part must be covered with a heat-insulating, rainproof and anti-pollution material. The tail of the vehicle is provided with a striking sign board. Before the material transporting vehicle enters a paving site, whether the tires are adhered with soil and dirt which possibly pollute the road surface or not needs to be checked, and the material transporting vehicle can enter the construction site after being cleaned.
Paving an asphalt concrete surface layer: the inspection temperature of the approach mixture is between 145 and 165 ℃, the traveling speed of the paver is 2.5-3.5m/min, the construction paving temperature is controlled to be 135-165 ℃, the paving thickness is controlled to be 140-165 ℃ at low temperature, and the paving thickness is not lower than the design thickness. The paving loose auxiliary coefficient of the asphalt concrete is 1.18-1.21 according to the paving data of the test section, in order to prevent segregation, the asphalt concrete is not required to be spread when being manually paved, the asphalt concrete is pushed to be smooth after the asphalt concrete is reversely buckled on a pavement, if a pitted surface exists at a joint, the asphalt concrete is spread by fine materials, the asphalt concrete is not required to be too high or too low, the edge of the joint is straight, and the asphalt concrete is not allowed to have arc shape or saw tooth shape. In the paving process, the paver must carry out slow, uniform and continuous paving, and the speed can not be changed randomly or stopped midway. The spiral material distributor of the paver and the paving speed are adjusted to keep a stable and balanced rotation, and the two sides of the paver are kept with a mixture with the height not less than that of the feeder 2/3 so as to reduce the separation of the mixture in the paving process.
Compacting: in the initial pressing stage, a 13T double-steel-wheel road roller is adopted to roll along with the paver, the length of a shorter initial pressing area is kept, the surface is compacted as soon as possible, and heat loss is reduced; the speed of the road roller is 3Km/h at two sides of static pressure, and the road roller can spray water to wet the steel wheel in order to prevent asphalt concrete from bonding the steel wheel. The normal temperature construction initial pressure temperature is controlled to be 130-140 ℃ and is not lower than 120 ℃; the initial pressure temperature of low-temperature construction is controlled to be 120-150 ℃ and is not lower than 120 ℃. The two tracks are overlapped by 15-30cm during rolling. And (4) checking the flatness after initial pressing, and finishing and reworking when quality defects exist. And in the negative pressure stage, the negative pressure temperature is not lower than 110 ℃, a 13T double-steel-wheel vibratory roller is adopted for rolling for four times, and in order to protect the original undamaged pavement, the double steel wheels of the roller can be started to vibrate after entering a newly paved asphalt surface zone area, and the speed is 3-5 Km/h. And in the final pressing stage, a 13t double-steel-wheel road roller is adopted to roll 3 edges, the static pressure of the road roller is ended, the final pressing temperature is not lower than 80 ℃ by taking the final elimination of wheel tracks as a degree, and the new pavement is ensured to be 2mm higher than the old pavement after the final pressing is finished.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A lane road surface structure characterized in that: the novel motor vehicle lane comprises a novel motor vehicle lane and a novel non-motor vehicle lane, wherein the novel motor vehicle lane is respectively provided with a stone powder slag cushion layer, a cement stabilized macadam lower base layer, a cement stabilized macadam upper base layer, a modified emulsified asphalt slurry seal layer, a coarse-grained asphalt concrete lower surface layer, a lower adhesive layer, an SBS modified medium-grained asphalt concrete adhesive layer middle surface layer, an upper adhesive layer and a rubber modified fine-grained asphalt concrete upper surface layer from bottom to top, and the stone powder slag cushion layer, the cement stabilized macadam lower base layer and the cement stabilized macadam upper base layer extend to the lower part of the novel non-motor vehicle lane.
2. The lane pavement structure according to claim 1, characterized in that: be equipped with between newly-built motor vehicle lane and the newly-built non-motor vehicle lane and found the kerbstone, one side of founding the kerbstone is equipped with the cast-in-place concrete back, is equipped with the cement mortar layer of 3cm thick between founding the kerbstone and the cement stabilized macadam upper basal layer, is equipped with the flat kerbstone between newly-built motor vehicle lane and the founding the kerbstone, and the flat kerbstone is laid on the mortar layer, and the mortar layer is laid on building stones concrete layer, and building stones concrete layer is laid on the cement stabilized macadam upper basal layer of newly-built motor vehicle lane.
3. The lane pavement structure according to claim 2, characterized in that: the newly-built non-motor vehicle lane is respectively a 15cm thick cement-stabilized macadam lower base layer, a 15cm thick cement-stabilized macadam upper base layer, a 1cm thick modified emulsified asphalt slurry seal layer, a 7cm thick coarse grain type asphalt concrete layer, an adhesive layer and a 4cm medium grain type modified asphalt concrete layer from bottom to top.
4. A roadway surface structure as claimed in claim 3, wherein: the thickness of the stone powder slag cushion layer is 15 cm.
5. The lane pavement structure according to claim 4, characterized in that: the thickness of the cement stabilized macadam lower base layer is 20 cm.
6. The lane pavement structure according to claim 5, characterized in that: the thickness of the cement-stabilized macadam upper base layer is 20 cm.
7. The lane pavement structure according to claim 6, characterized in that: the thickness of the modified emulsified asphalt slurry seal is 1 cm.
8. The lane pavement structure according to claim 7, characterized in that: the thickness of the coarse-grained asphalt concrete lower surface layer is 7 cm.
9. The lane pavement structure according to claim 8, characterized in that: the thickness of the surface layer in the SBS modified medium-grain asphalt concrete adhesive layer is 5 cm.
10. The lane pavement structure according to claim 9, characterized in that: the thickness of the upper surface layer of the rubber modified fine particle type asphalt concrete is 4 cm.
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| CN202121300157.8U CN215405359U (en) | 2021-06-10 | 2021-06-10 | Lane pavement structure |
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| CN202121300157.8U CN215405359U (en) | 2021-06-10 | 2021-06-10 | Lane pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960317A (en) * | 2022-05-25 | 2022-08-30 | 中誉设计有限公司 | Cross road arrangement structure in plane traffic |
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- 2021-06-10 CN CN202121300157.8U patent/CN215405359U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960317A (en) * | 2022-05-25 | 2022-08-30 | 中誉设计有限公司 | Cross road arrangement structure in plane traffic |
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