CN214992788U - Layer structure of asphalt pavement - Google Patents
Layer structure of asphalt pavement Download PDFInfo
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- CN214992788U CN214992788U CN202120377400.XU CN202120377400U CN214992788U CN 214992788 U CN214992788 U CN 214992788U CN 202120377400 U CN202120377400 U CN 202120377400U CN 214992788 U CN214992788 U CN 214992788U
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Abstract
The utility model provides a bituminous paving's layer structure relates to bituminous paving construction field, can solve bituminous paving's rut disease. The asphalt pavement structure comprises a cavity, a base surface layer, an emulsified asphalt layer, an asphalt mixture layer and a grouting layer, wherein the cavity is positioned in a canalized traffic area of an original asphalt pavement and is formed by adopting a milling process; the base surface layer, the emulsified asphalt layer, the asphalt mixture layer and the grouting layer are all positioned in the cavity of the cavity, the base surface layer is positioned at the bottom surface of the cavity, and the base surface layer is formed by spraying concrete as a raw material; the emulsified asphalt layer is positioned on the upper surface of the base surface layer, the asphalt mixture layer is positioned on the upper surface of the emulsified asphalt layer, and the upper surface of the asphalt mixture layer is flush with the upper surface of the asphalt surface layer of the original asphalt pavement; the grouting layer is formed by injecting grouting materials serving as raw materials into the asphalt mixture layer, and the rigid and flexible pavement structure layer is formed by mutual embedding and extruding action between the asphalt mixtures and the injected slurry, so that the asphalt pavement structure has the advantages of attractive appearance and comfort and has the stability of a rigid pavement.
Description
Technical Field
The utility model relates to an asphalt pavement construction field especially relates to an asphalt pavement's layer structure.
Background
Due to the viscoelastic property of the asphalt material, the asphalt pavement at the road intersection in summer is very easy to frequently generate track (track is a permanent wheel impression left after a vehicle runs on the asphalt pavement) diseases, so that the potential safety hazard is caused, and meanwhile, serious economic loss and social influence are caused.
The ruts of the asphalt pavement are divided into four types of wear-abrasion type ruts, structural ruts, unstable ruts and compact ruts. From the analysis of the rutting process, the rutting is mainly caused by that the asphalt surface layer is further compacted due to the softening of the asphalt at high temperature, and the restraint effect of the softening of the asphalt on a mineral framework is reduced, so that the framework is unstable. Of course, the stability of the skeleton and the amount of fine aggregate also affect the rutting process.
In order to improve the safety of asphalt pavement and prolong the service life of asphalt pavement, the layer structure of asphalt pavement needs to be researched urgently.
Disclosure of Invention
The embodiment of the utility model provides a bituminous paving's layer structure, dig and mill the regional cavity that forms of canalization traffic of former bituminous paving, construct the base surface layer in proper order in the cavity, the emulsified asphalt layer, bituminous mixture layer and grout blanket, the setting of base surface layer is for improving bituminous paving's intensity, the setting on emulsified asphalt layer is more inseparabler for base surface layer and bituminous mixture layer contact, the grout blanket is the utilization and inlays crowded principle, inlay crowded effect and the road surface structural layer of filling jointly forming the rigidity and softness and being between the slurry through each other between the bituminous mixture, have bituminous paving's pleasing to the eye comfortable stability that has rigid pavement simultaneously concurrently, improve bituminous pavement's security and extension bituminous pavement's service life.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
a layer structure of an asphalt pavement comprising:
the cavity is positioned in a canalized traffic area of an original asphalt pavement, the cavity is formed by adopting a milling process, the cavity penetrates through an asphalt surface layer of the original asphalt pavement, the bottom surface of the cavity is positioned on a cement gravel base layer of the original asphalt pavement, the original asphalt pavement comprises the road base layer, the subbase layer, the cement gravel base layer, the concrete base layer and an asphalt surface layer from bottom to top, and the base surface layer, the emulsified asphalt layer, the asphalt mixture layer and the grouting layer are all positioned in the cavity of the cavity;
the base surface layer is positioned on the bottom surface of the cavity and is formed by spraying concrete serving as a raw material, and the upper surface of the base surface layer is flush with the upper surface of the cement gravel base layer;
the emulsified asphalt layer is positioned on the upper surface of the base surface layer, and is formed by spraying emulsified asphalt serving as a raw material on the upper surface of the base surface layer;
the asphalt mixture layer is positioned on the upper surface of the emulsified asphalt layer, the asphalt mixture layer is formed by paving and rolling asphalt mixture serving as a raw material on the emulsified asphalt layer, the upper surface of the asphalt mixture layer is flush with the upper surface of the asphalt surface layer of the original asphalt pavement, and the upper surface of the asphalt mixture layer is flush with the upper surface of the cavity;
and the grouting layer is filled in the asphalt mixture layer, grouting materials are used as raw materials for injecting into the asphalt mixture layer, the grouting materials fill the gaps of the asphalt mixture layer, and the upper surface of the asphalt mixture layer is higher than that of the grouting layer.
In some embodiments, further comprising:
the crack filling layer is positioned at the cavity bottom of the cavity body and is formed by filling a crack at the cavity bottom with a crack filling agent, and the base surface layer is arranged above the crack filling layer.
In some embodiments, further comprising:
the crack covering layer is adhered to the upper surface of the crack filling layer, the width of the crack covering layer is larger than two times of the width of the crack filling layer, and part of the base surface layer is located on the upper surface of the crack covering layer; and part of the concrete is sprayed on the upper surface of the crack covering layer to form part of the base surface layer.
In some embodiments, the emulsified asphalt layer is formed by spraying emulsified asphalt as a raw material on the upper surface of the base surface layer;
the asphalt mixture layer is formed by paving and rolling an asphalt mixture serving as a raw material on the emulsified asphalt layer;
the grouting material is used as a raw material to be injected into the asphalt mixture layer, and the grouting material fills gaps of the asphalt mixture layer.
In some embodiments, the cavity wall of the cavity is an inclined surface, and two opposite inclined surfaces of the cavity incline in an inverted splayed manner from the cavity bottom to the cavity top, so that the size of the cavity is gradually increased in the direction from the cavity bottom to the cavity top.
In some embodiments, the asphalt pavement is napped with the original asphalt pavement at the joint of the asphalt pavement to form a napped layer, and an adhesive layer is arranged on the napped layer and is formed after the napped layer is solidified through spraying an adhesive;
the bonding layer is fixedly bonded with the base surface layer, the emulsified asphalt layer, the asphalt mixture layer and the grouting layer.
In the present disclosure, at least the following technical effects or advantages are provided:
the embodiment of the utility model provides a through having adopted between the bituminous mixture inlay crowded effect each other and the slurry that fills forms the pavement structure layer of the rigidity and softness that is in parallel, effectively solved former bituminous paving's rut disease problem, and then realized that bituminous paving's layer structure has both the stability on rigidity road surface when bituminous paving beautifully feels comfortable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic layer structure of an asphalt pavement provided in accordance with some embodiments of the present disclosure;
FIG. 2 is a schematic illustration of a raw asphalt pavement structure provided in accordance with some embodiments of the present disclosure;
reference numerals: 10-asphalt surface course; 20-concrete base course; 30-cement gravel base; 40-an underlayer; 50-roadbed layer; 1-a cavity; 2-a base surface layer; 3-emulsifying an asphalt layer; 4-asphalt mixture layer; and 5-grouting layer.
Detailed Description
The present disclosure is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present disclosure, and those skilled in the art should understand that the functional, methodological, or structural equivalents of these embodiments or substitutions may be included in the scope of the present disclosure.
In the description of the embodiments of the present disclosure, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Embodiments of the present disclosure provide a layer structure of an asphalt pavement, such as a layer structure of a quick-setting high-performance grouting composite pavement.
In some embodiments, referring to fig. 1 and fig. 2, the layer structure of the quick-setting high-performance grouting composite pavement includes, for example, a cavity 1, a base layer 2, an emulsified asphalt layer 3, an asphalt mixture layer 4 and a grouting layer 5, the cavity 1 is located in a canalized traffic area of an original asphalt pavement, the cavity 1 is formed by a milling process, the cavity 1 penetrates through an asphalt layer 10 of the original asphalt pavement, a bottom surface of the cavity 1 is located in a cement gravel base layer 30 of the original asphalt pavement, the original asphalt pavement includes, from bottom to top, a road base layer 50, a base layer 40, a cement gravel base layer 30, a concrete base layer 20 and an asphalt layer 10, and the base layer 2, the emulsified asphalt layer 3, the asphalt mixture layer 4 and the grouting layer 5 are all located in a cavity of the cavity 1; the base surface layer 2 is positioned on the bottom surface of the cavity 1, the base surface layer 2 is formed by spraying concrete serving as a raw material, and the upper surface of the base surface layer 2 is flush with the upper surface of the cement gravel base layer 30; the emulsified asphalt layer 3 is positioned on the upper surface of the base surface layer 2, and the emulsified asphalt layer 3 is formed by spraying emulsified asphalt serving as a raw material on the upper surface of the base surface layer 2; the asphalt mixture layer 4 is positioned on the upper surface of the emulsified asphalt layer 3, the asphalt mixture layer 4 is formed by paving and rolling asphalt mixture on the emulsified asphalt layer 3, the upper surface of the asphalt mixture layer 4 is flush with the upper surface of an asphalt surface layer 10 of the original asphalt pavement, and the upper surface of the asphalt mixture layer 4 is flush with the upper surface of the cavity 1; the grouting material 5 is filled in the asphalt mixture layer 4, the grouting material 5 is injected into the asphalt mixture layer 4 by taking grouting material as raw material, the grouting material fills the gap of the asphalt mixture layer 4, and the upper surface of the asphalt mixture layer 4 is higher than the upper surface of the grouting layer 5.
The embodiment of the utility model provides an in, dig and mill the regional cavity 1 that forms of canalization traffic of former bituminous paving, construct base course layer 2 in proper order in cavity 1, emulsified asphalt layer 3, bituminous mixture layer 4 and grout layer 5, base course layer 2's setting is for improving bituminous paving's intensity, emulsified asphalt layer 3's setting is for base course layer 2 and bituminous mixture layer 4 contact inseparabler, grout layer 5 is the utilization and inlays crowded principle, inlay crowded effect and the road surface structural layer of pouring the slurry and form rigidity and flexibility jointly through each other between the bituminous mixture, have bituminous paving's stability of concurrently having the rigidity road surface when pleasing to the eye comfortable, improve bituminous paving's security and extension bituminous paving's life.
It should be noted that the canalized traffic area of the embodiment of the present invention refers to
When there are numerous cracks in the 1 bottom of cavity after digging and milling, the utility model discloses bituminous paving's layer structure includes still that cavity 1, base course 2, emulsified asphalt layer 3, pitch mixture layer 4 and grout blanket 5 are excepted, includes: the crack filling layer is positioned at the cavity bottom of the cavity 1 and formed by filling a crack filler into a cavity bottom crack, and the base surface layer 2 is arranged above the crack filling layer.
For wider crack, the embodiment of the utility model discloses an upper surface after the crack is filled still need set up the crack overburden, specifically, the utility model discloses a bituminous paving's layer structure includes cavity 1, base course layer 2, emulsified asphalt layer 3, pitch mixture layer 4, grouting layer 5 and crack filling layer in addition, still includes the crack overburden, and the crack overburden is pasted on the upper surface of crack filling layer, and the width of crack overburden is greater than two times width of crack filling layer, and partial base course layer 2 is located the upper surface of crack overburden; part of the concrete is sprayed on the upper surface of the crack covering layer to form part of the base surface layer 2.
In many embodiments, the emulsified asphalt layer 3 of the embodiment of the present invention is formed by spraying emulsified asphalt as a raw material on the upper surface of the base layer 2; the asphalt mixture layer 4 is formed by paving and rolling an asphalt mixture serving as a raw material on the emulsified asphalt layer 3; the grouting material is used as the raw material of the grouting layer 5 and is injected into the asphalt mixture layer 4, and the grouting material fills the gap of the asphalt mixture layer 4.
In the embodiment of the present invention, the cavity wall of the preferred cavity 1 is an inclined plane, and two opposite inclined planes of the cavity 1 are inclined in a shape of inverted eight from the bottom of the cavity to the top of the cavity, so that the size of the cavity 1 is gradually increased in the direction from the bottom of the cavity to the top of the cavity.
In order to realize the tight connection of the original asphalt pavement and the quick-setting high-performance grouting composite pavement, in the embodiment of the utility model, the original asphalt pavement at the joint of the asphalt pavement is napped to form a napped layer, the napped layer is provided with an adhesive layer, and the adhesive layer is formed after the napped layer is solidified by spraying an adhesive; the bonding layer is bonded and fixed with the base surface layer 2, the emulsified asphalt layer 3, the asphalt mixture layer 4 and the grouting layer 5.
The embodiment of the utility model provides a through having adopted between the bituminous mixture inlay crowded effect each other and the slurry that fills forms the pavement structure layer of the rigidity and softness that is in parallel, effectively solved former bituminous paving's rut disease problem, and then realized that bituminous paving's layer structure has both the stability on rigidity road surface when bituminous paving beautifully feels comfortable.
The above-listed detailed description is merely a specific description of possible embodiments of the present disclosure, and is not intended to limit the scope of the disclosure, which is intended to include within its scope equivalent embodiments or modifications that do not depart from the technical spirit of the present disclosure.
It will be evident to those skilled in the art that the disclosure is not limited to the details of the foregoing illustrative embodiments, and that the present disclosure may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the disclosure being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A layer structure of an asphalt pavement, comprising:
the cavity is positioned in a canalized traffic area of the asphalt pavement, the cavity is formed by adopting a milling process, the cavity penetrates through an asphalt surface layer of the original asphalt pavement, the bottom surface of the cavity is positioned on a cement gravel base layer of the original asphalt pavement, the original asphalt pavement comprises the road base layer, the subbase layer, the cement gravel base layer, the concrete base layer and the asphalt surface layer from bottom to top, and the base surface layer, the emulsified asphalt layer, the asphalt mixture layer and the grouting layer are all positioned in the cavity of the cavity;
the base surface layer is positioned on the bottom surface of the cavity and is formed by spraying concrete serving as a raw material, and the upper surface of the base surface layer is flush with the upper surface of the cement gravel base layer;
the emulsified asphalt layer is positioned on the upper surface of the base surface layer;
the asphalt mixture layer is positioned on the upper surface of the emulsified asphalt layer, the upper surface of the asphalt mixture layer is flush with the upper surface of the asphalt surface layer of the original asphalt pavement, and the upper surface of the asphalt mixture layer is flush with the upper surface of the cavity;
and the grouting layer is filled in the asphalt mixture layer, and the upper surface of the asphalt mixture layer is higher than that of the grouting layer.
2. The layer structure of asphalt pavement according to claim 1, further comprising:
the crack filling layer is positioned at the cavity bottom of the cavity body and is formed by filling a crack at the cavity bottom with a crack filling agent, and the base surface layer is arranged above the crack filling layer.
3. The layer structure of asphalt pavement according to claim 2, further comprising:
the crack covering layer is adhered to the upper surface of the crack filling layer, the width of the crack covering layer is larger than two times of the width of the crack filling layer, and part of the base surface layer is located on the upper surface of the crack covering layer; and part of the concrete is sprayed on the upper surface of the crack covering layer to form part of the base surface layer.
4. The layer structure of asphalt pavement according to claim 1, wherein the emulsified asphalt layer is formed by spraying emulsified asphalt as a raw material on the upper surface of the base surface layer;
the asphalt mixture layer is formed by paving and rolling an asphalt mixture serving as a raw material on the emulsified asphalt layer;
the grouting material is used as a raw material to be injected into the asphalt mixture layer, and the grouting material fills gaps of the asphalt mixture layer.
5. The layer structure of an asphalt pavement according to claim 1, wherein the cavity wall of the cavity is an inclined surface, and two opposite inclined surfaces of the cavity are inclined in an inverted V shape from the cavity bottom to the cavity top, so that the size of the cavity is gradually increased in the cavity bottom to cavity top direction.
6. The layer structure of asphalt pavement according to claim 5, wherein a napped layer is formed by napping the original asphalt pavement at the joint of the asphalt pavement, and an adhesive layer is provided on the napped layer, and the adhesive layer is formed by spraying an adhesive on the napped layer after the napped layer is solidified;
the bonding layer is fixedly bonded with the base surface layer, the emulsified asphalt layer, the asphalt mixture layer and the grouting layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377400.XU CN214992788U (en) | 2021-02-19 | 2021-02-19 | Layer structure of asphalt pavement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120377400.XU CN214992788U (en) | 2021-02-19 | 2021-02-19 | Layer structure of asphalt pavement |
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| CN214992788U true CN214992788U (en) | 2021-12-03 |
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| CN202120377400.XU Active CN214992788U (en) | 2021-02-19 | 2021-02-19 | Layer structure of asphalt pavement |
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- 2021-02-19 CN CN202120377400.XU patent/CN214992788U/en active Active
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