CN210529402U - Expressway bituminous pavement structure - Google Patents
Expressway bituminous pavement structure Download PDFInfo
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- CN210529402U CN210529402U CN201920958565.9U CN201920958565U CN210529402U CN 210529402 U CN210529402 U CN 210529402U CN 201920958565 U CN201920958565 U CN 201920958565U CN 210529402 U CN210529402 U CN 210529402U
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Abstract
The utility model discloses an express way bituminous paving structure includes from supreme down in proper order: a roadbed; a cushion layer having a layered structure formed of crushed stones; the base layer is of a layer structure formed by cement-stabilized macadam, and a reinforcing structure is arranged inside the base layer; a support layer which is a slab structure formed of cement concrete; the waterproof layer is a layer structure formed by waterborne epoxy emulsified asphalt, and a stress absorption structure is arranged inside the waterproof layer; the lower surface layer is a layer structure formed by medium-grain asphalt concrete; and the upper layer is a layer structure formed by fine-grain asphalt concrete. The utility model discloses can have the anti crack ability of improvement expressway road surface, promote security and travelling comfort of traveling.
Description
Technical Field
The utility model relates to a city infrastructure construction. More specifically, the utility model relates to an express way bituminous paving structure.
Background
An important road in a city with a high speed serving long-distance traffic is called a expressway. The expressway is all-inclusive and is visible everywhere, is only about ten kilometers short, and can be called the expressway type with the highest use frequency. After the express way is rolled for a long time, cracks with different degrees exist along with reasons such as internal stress release of the road, rainwater impact and the like, and the express way is very dangerous for vehicles running at high speed, so that the express way is frequently maintained in later period, and road reinforcement and waterproof presetting are not performed as early as construction.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses still another purpose provides an express way bituminous paving structure, and it can have the crack resistance ability of improvement express way road surface, has promoted security and travelling comfort of traveling.
In order to realize the objects and other advantages in accordance with the present invention, there is provided an expressway bituminous pavement structure comprising, in order from bottom to top:
a roadbed;
the cushion layer is of a layer structure formed by broken stones, the middle of the cushion layer rises and falls smoothly towards two sides, the thickness of the cushion layer is 20-25cm, and reinforcing steel bars are vertically inserted into the cushion layer;
the base layer is of a layer structure formed by cement-stabilized macadam, the bottom of the base layer is matched with the radian of the top of the cushion layer, a reinforcing structure is arranged inside the base layer and comprises a steel wire mesh and geotextile paved above the steel wire mesh, the steel bar extends into the base layer and is hooked on the steel wire mesh, and the thickness of the base layer is 15-20 cm;
the supporting layer is a plate structure formed by cement concrete, and the thickness of the supporting layer is 10 cm;
the waterproof layer is of a layer structure formed by waterborne epoxy emulsified asphalt, the middle of the waterproof layer is raised and smoothly falls to two sides, the thickness of the waterproof layer is 10-15cm, and a stress absorption structure is arranged in the waterproof layer and comprises a steel bar geogrid and polyester oil-impregnated reinforcement cloth flatly laid above the steel bar geogrid;
the lower surface layer is of a layer structure formed by medium-grain asphalt concrete, the bottom of the lower surface layer is matched with the radian of the top of the cushion layer, and the thickness of the lower surface layer is 10 cm;
and the upper surface layer is a layer structure formed by fine-grain asphalt concrete, and the thickness of the upper surface layer is 5 cm.
Preferably, the method further comprises the following steps:
the pair of fixing plates are symmetrically arranged at two outer sides of the expressway to form vertical supporting surfaces;
the supporting rods are obliquely arranged on two outer sides of the fixing plates, and the supporting rods, the fixing plates and the ground form a triangular supporting structure.
Preferably, the method further comprises the following steps:
the pair of fixing plates are symmetrically arranged at two outer sides of the expressway to form vertical supporting surfaces;
and the kerbstone is arranged on two outer sides of the pair of fixing plates, and the surface of the kerbstone is flush with the upper layer.
Preferably, the method further comprises the following steps:
the first drainage pipes are symmetrically arranged in the inclined first drainage holes reserved in the fixed plate and the curb stone;
the plurality of pairs of second drain pipes are symmetrically arranged in the inclined second drain holes reserved in the fixed plate and the curb stone;
the pair of drainage wells are symmetrically arranged at two outer sides of the kerbstone, and the top of each drainage well is provided with a draining cover plate;
the upper end of the first drainage pipe is communicated with the lower surface layer, the upper end of the second drainage pipe is communicated with the base layer, and the lower end of the first drainage pipe and the lower end of the second drainage pipe extend into the drainage well.
Preferably, the reinforcing bars are arranged in a plurality of rows and columns, and the upper ends of the reinforcing bars are in a U-shaped structure with the opening facing downwards.
Preferably, the first and second drain pipes are internally provided with a filter screen.
The utility model discloses at least, include following beneficial effect:
firstly, the utility model reduces the shear stress generated by the driving load and the shear stress generated by the road surface deformation by sequentially laying a plurality of layer structures, reduces the deformation of the asphalt road surface under the action of the vehicle load, guides and discharges the accumulated water on the road surface, avoids the cracking caused by the immersion of the asphalt road surface, can improve the crack resistance of the pavement of the express way, and improves the driving safety and the comfort;
secondly, the roadbed is gravel, the cushion layer is made of broken stones, the cambered surface structure of the cushion layer is enlarged to the base area of the base layer, reinforcing steel bars are inserted into and hooked on the steel wire mesh to improve stability, the supporting layer is a main bearing structure, the cambered surface structure of the waterproof layer forms a drainage slope, the reinforcing steel bar geogrid and the polyester oil-impregnated reinforcement cloth can absorb and release internal stress, the embedded structure increases the strength of the whole pavement, the lower layer improves the drainage capacity, the upper layer improves the water seepage capacity, and the lower layer and the upper layer both have better pressure resistance;
thirdly, the fixing plate is a steel plate, the fixing plate and the supporting rods are arranged, collapse of two sides is prevented, and the use safety is improved due to the stable triangular supporting structure; the fixed plate is a steel plate, and the fixed plate and the kerbstone are arranged to prevent collapse of two sides, so that an urban expressway is designed conveniently; the first drainage pipe and the second drainage pipe have a flow guiding effect, accumulated water in the layer structure is prevented, the accumulated water is drained to a drainage well, in the actual construction process, the drainage holes can be reserved on the fixing plate, then the first drainage pipe and the second drainage pipe are installed, then the supporting structure is formed, the kerbstone is poured, and a drainage passage is formed; the U-shaped hooks of the steel bars are hooked on the steel wire mesh, the steel bars are installed in place in the actual construction process, meshes of the steel wire mesh are inserted into the steel bars in a staggered mode, and then the steel wire mesh is translated to be hooked at the top points; the setting up filtering large granule impurity of filter screen avoids blockking up first drain pipe, second drain pipe.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a technical solution of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1, the utility model provides an express way bituminous paving structure includes from supreme down in proper order:
a roadbed 1;
the cushion layer 2 is of a layer structure formed by broken stones, the middle of the cushion layer 2 rises and falls smoothly towards two sides, the thickness of the cushion layer 2 is 20-25cm, and reinforcing steel bars 17 are vertically inserted into the cushion layer 2;
the base layer 3 is a layer structure formed by cement-stabilized macadam, the bottom of the base layer 3 is matched with the radian of the top of the cushion layer 2, a reinforcing structure is arranged inside the base layer 3 and comprises a steel wire mesh 4 and geotextile 5 paved above the steel wire mesh 4, the reinforcing steel bars 17 extend into the base layer 3 and are hooked on the steel wire mesh 4, and the thickness of the base layer 3 is 15-20 cm;
a support layer 6 which is a plate structure formed of cement concrete and has a thickness of 10 cm;
the waterproof layer 7 is a layer structure formed by waterborne epoxy emulsified asphalt, the middle of the waterproof layer 7 is bulged and smoothly falls towards two sides, the thickness of the waterproof layer 7 is 10-15cm, and a stress absorption structure is arranged inside the waterproof layer 7 and comprises a steel bar geogrid 8 and polyester oil-impregnated reinforcement cloth 9 flatly laid above the steel bar geogrid;
the lower surface layer 10 is of a layer structure formed by medium-grain asphalt concrete, the bottom of the lower surface layer 10 is matched with the radian of the top of the cushion layer 2, and the thickness of the lower surface layer 10 is 10 cm;
and an upper layer 11 which is a layer structure formed by fine-grained asphalt concrete, wherein the thickness of the upper layer 11 is 5 cm.
In above-mentioned technical scheme, road bed 1 is the gravel, bed course 2 adopts the rubble, bed course 2's cambered surface structure increase and basic unit 3's basal area, reinforcing bar 17 is inserted and is established and the hook is located wire net 4 and improve the steadiness, supporting layer 6 is main bearing structure, waterproof layer 7's cambered surface structure forms the drainage slope, reinforcing bar geogrid 8 can absorb the release internal stress with polyester immersion oil reinforced fabric 9, inlay the intensity of establishing the whole road surface of structure increase, lower floor 10 improves drainage ability, upper strata 11 improves infiltration ability, and the two all has better compressive capacity.
Through laying in proper order of a plurality of layer structures, reduce the shear stress that the load produced of driving a vehicle and the shear stress that the road surface warp and produce, reduce the deformation of bituminous paving under the vehicle load effect, discharge surface ponding water conservancy diversion, avoid bituminous paving to soak and cause the fracture, can have the anti crack ability of improvement expressway road surface, promoted safety and travelling comfort.
In another technical solution, the method further comprises:
a pair of fixing plates 12 symmetrically installed at both outer sides of the expressway to form vertical supporting surfaces;
and a plurality of pairs of support rods obliquely arranged at two outer sides of the pair of fixing plates 12, wherein the support rods, the fixing plates 12 and the ground form a triangular support structure.
Fixed plate 12 is the steel sheet, sets up fixed plate 12 and bracing piece, prevents that both sides from collapsing, and stable triangular supports structure improves the safety in utilization.
In another technical solution, the method further comprises:
a pair of fixing plates 12 symmetrically installed at both outer sides of the expressway to form vertical supporting surfaces;
and kerbs 13 mounted on both outer sides of the pair of fixing plates 12, the surfaces of the kerbs 13 being flush with the upper surface layer 11.
In above-mentioned technical scheme, fixed plate 12 is the steel sheet, sets up fixed plate 12 and curb 13, prevents that both sides from collapsing, is convenient for design urban expressway.
In another technical solution, the method further comprises:
a plurality of pairs of first drainage pipes 14 symmetrically installed in the first drainage holes reserved on the fixed plate 12 and the curb 13;
a plurality of pairs of second drain pipes 15 symmetrically installed in the second inclined drain holes reserved in the fixing plate 12 and the curb 13;
a pair of drainage wells 16 symmetrically installed at both outer sides of the kerb 13, wherein a draining cover plate is provided at the top of the drainage well 16;
wherein, the upper end of first drain pipe 14 with surface course 10 intercommunication down, the upper end of second drain pipe 15 with basic unit 3 intercommunication, first drain pipe 14 the lower extreme of second drain pipe 15 all stretches into drainage well 16.
In the above technical scheme, the first drainage pipe 14 and the second drainage pipe 15 have a flow guiding effect, so that water accumulation in a layer structure is prevented, and the accumulated water is drained to the drainage well 16.
In another technical scheme, the reinforcing steel bars 17 are arranged in a plurality of rows and columns, and the upper ends of the reinforcing steel bars 17 are in a U-shaped structure with an opening facing downwards. The U-shaped hook of reinforcing steel bar 17 is hooked at wire net 4, and in the actual work progress, reinforcing steel bar 17 has installed in place, now inserts reinforcing steel bar 17 with the mesh dislocation of wire net 4, then translation wire net 4 makes its hook locate the apex department.
In another technical solution, a filter screen is arranged inside the first and second water discharge pipes 14 and 15. The setting up filtering large granule impurity of filter screen avoids blockking up first drain pipe 14, second drain pipe 15.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides an express way bituminous paving structure which characterized in that includes from bottom to top in proper order:
a roadbed;
the cushion layer is of a layer structure formed by broken stones, the middle of the cushion layer rises and falls smoothly towards two sides, the thickness of the cushion layer is 20-25cm, and reinforcing steel bars are vertically inserted into the cushion layer;
the base layer is of a layer structure formed by cement-stabilized macadam, the bottom of the base layer is matched with the radian of the top of the cushion layer, a reinforcing structure is arranged inside the base layer and comprises a steel wire mesh and geotextile paved above the steel wire mesh, the steel bar extends into the base layer and is hooked on the steel wire mesh, and the thickness of the base layer is 15-20 cm;
the supporting layer is a plate structure formed by cement concrete, and the thickness of the supporting layer is 10 cm;
the waterproof layer is of a layer structure formed by waterborne epoxy emulsified asphalt, the middle of the waterproof layer is raised and smoothly falls to two sides, the thickness of the waterproof layer is 10-15cm, and a stress absorption structure is arranged in the waterproof layer and comprises a steel bar geogrid and polyester oil-impregnated reinforcement cloth flatly laid above the steel bar geogrid;
the lower surface layer is of a layer structure formed by medium-grain asphalt concrete, the bottom of the lower surface layer is matched with the radian of the top of the cushion layer, and the thickness of the lower surface layer is 10 cm;
and the upper surface layer is a layer structure formed by fine-grain asphalt concrete, and the thickness of the upper surface layer is 5 cm.
2. An express way asphalt pavement structure as set forth in claim 1, further comprising:
the pair of fixing plates are symmetrically arranged at two outer sides of the expressway to form vertical supporting surfaces;
the supporting rods are obliquely arranged on two outer sides of the fixing plates, and the supporting rods, the fixing plates and the ground form a triangular supporting structure.
3. An express way asphalt pavement structure as set forth in claim 1, further comprising:
the pair of fixing plates are symmetrically arranged at two outer sides of the expressway to form vertical supporting surfaces;
and the kerbstone is arranged on two outer sides of the pair of fixing plates, and the surface of the kerbstone is flush with the upper layer.
4. An express way asphalt pavement structure as set forth in claim 3, further comprising:
the first drainage pipes are symmetrically arranged in the inclined first drainage holes reserved in the fixed plate and the curb stone;
the plurality of pairs of second drain pipes are symmetrically arranged in the inclined second drain holes reserved in the fixed plate and the curb stone;
the pair of drainage wells are symmetrically arranged at two outer sides of the kerbstone, and the top of each drainage well is provided with a draining cover plate;
the upper end of the first drainage pipe is communicated with the lower surface layer, the upper end of the second drainage pipe is communicated with the base layer, and the lower end of the first drainage pipe and the lower end of the second drainage pipe extend into the drainage well.
5. An express way asphalt pavement structure as claimed in claim 1, wherein the reinforcing bars are arranged in a plurality of rows and columns, and the upper ends of the reinforcing bars are of a U-shaped structure with the opening facing downward.
6. The express way asphalt pavement structure as claimed in claim 4, wherein the first and second drainage pipes are internally provided with a filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958565.9U CN210529402U (en) | 2019-06-24 | 2019-06-24 | Expressway bituminous pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958565.9U CN210529402U (en) | 2019-06-24 | 2019-06-24 | Expressway bituminous pavement structure |
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| Publication Number | Publication Date |
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| CN210529402U true CN210529402U (en) | 2020-05-15 |
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| CN201920958565.9U Active CN210529402U (en) | 2019-06-24 | 2019-06-24 | Expressway bituminous pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982165A (en) * | 2021-10-27 | 2022-01-28 | 中七建工集团华贸有限公司 | Damping device of civil engineering structure |
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- 2019-06-24 CN CN201920958565.9U patent/CN210529402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982165A (en) * | 2021-10-27 | 2022-01-28 | 中七建工集团华贸有限公司 | Damping device of civil engineering structure |
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