CN216156280U - Reinforced cement stabilized macadam base road structure - Google Patents
Reinforced cement stabilized macadam base road structure Download PDFInfo
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- CN216156280U CN216156280U CN202121917454.7U CN202121917454U CN216156280U CN 216156280 U CN216156280 U CN 216156280U CN 202121917454 U CN202121917454 U CN 202121917454U CN 216156280 U CN216156280 U CN 216156280U
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- stabilized macadam
- cement stabilized
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Abstract
The utility model discloses a reinforced cement stabilized macadam foundation road structure which comprises a roadbed, a macadam cushion layer, a cement stabilized macadam foundation and a pavement layer which are sequentially laid from bottom to top, wherein at least two carbon fiber net layers are uniformly laid in the cement stabilized macadam foundation along the height direction. The carbon fiber net layer is laid in the cement stabilized macadam base layer, so that the tensile strength and the shear strength of the cement stabilized macadam base layer are greatly improved, the crack resistance of the cement stabilized macadam base layer is enhanced, the cracking of a pavement layer is reduced, the problems that the existing cement stabilized macadam base layer is low in tensile strength and shear strength, and cracks are easily generated due to cracking when the existing cement stabilized macadam base layer is subjected to large tensile force and shear force and expansion with heat and contraction with cold are solved, and the cement stabilized macadam base layer has the advantages of being simple in structure, convenient to construct, good in crack resistance and high in stability.
Description
Technical Field
The utility model belongs to the technical field of road construction, and particularly relates to an enhanced cement stabilized macadam foundation road structure.
Background
The cement stabilized macadam base has the advantages of good mechanical strength, frost resistance, freezing resistance, stability, good durability, self-formed plate body of the structure and the like, so that the cement stabilized macadam base has good overall performance and is widely applied to road engineering. The construction technology of cement stabilized macadam base is quite mature, and the mixture of sand and macadam which is prepared according to a certain proportion is mixed with proper cement and water, stirred and paved, compacted and maintained at the optimum water content, and then the mixture can be formed. The cement stabilized macadam base layer belongs to a semi-rigid structure and bears load transmitted from a road surface. However, the existing cement stabilized macadam base is not high in tensile strength and shear strength, so that the problem of cracking caused by cracking easily occurs when the existing cement stabilized macadam base meets the conditions of high tensile force and shear force and expansion with heat and contraction with cold, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the existing cement stabilized macadam base is not high in tensile strength and shear strength, and cracks are easily generated due to cracking under the conditions of large tensile force and shear force and expansion with heat and contraction with cold, and provides a reinforced cement stabilized macadam base road structure which is simple in structure, convenient to construct, good in crack resistance and high in stability. This structure has improved tensile strength through arranging multilayer carbon fiber net piece at cement stabilized macadam base course, and then improves its anti cracking performance, reduces the condition of fracture.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a rubble basic unit road structure is stabilized to enhancement mode cement, includes road bed, rubble bed course, the rubble basic unit and the pavement layer are stabilized to cement that from the bottom up laid in proper order, at least two-layer carbon fiber net layer has evenly been laid along the direction of height in the inside of rubble basic unit is stabilized to cement.
As a preferable scheme, each carbon fiber net layer comprises a plurality of carbon fiber net layer blocks, and the plurality of carbon fiber net layer blocks are sequentially overlapped along the length direction of the cement stabilized macadam base layer.
Preferably, the carbon fiber mesh layer is in a mesh shape.
Preferably, the width of the carbon fiber net layer is equal to that of the cement-stabilized macadam foundation layer.
Preferably, the carbon fiber mesh layer is provided with 4 layers.
Preferably, the distance between two adjacent carbon fiber net layers is 40-60 mm.
As a preferable scheme, the width of the carbon fiber net layer and the width of the cement-stabilized macadam base layer are both 4000-8000 mm.
As a preferable scheme, the thickness of the gravel cushion layer is 80-120 mm.
Preferably, the gaps between the stones of the stone pad are filled with gravel.
As a preferable scheme, the pavement layer is an asphalt concrete or common concrete layer.
The implementation of the utility model has the following beneficial effects:
the carbon fiber net layer is laid in the cement stabilized macadam base layer, so that the tensile strength and the shear strength of the cement stabilized macadam base layer are greatly improved, the crack resistance of the cement stabilized macadam base layer is enhanced, the cracking of a pavement layer is reduced, the problems that the existing cement stabilized macadam base layer is low in tensile strength and shear strength, and cracks are easily generated due to cracking when the existing cement stabilized macadam base layer is subjected to large tensile force and shear force and expansion with heat and contraction with cold are solved, and the cement stabilized macadam base layer has the advantages of being simple in structure, convenient to construct, good in crack resistance and high in stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a reinforced cement stabilized macadam based roadway structure of the present invention.
Fig. 2 is a schematic structural view of a carbon fiber mesh layer of the reinforced cement stabilized macadam based roadway structure of the utility model.
Fig. 3 is a schematic structural diagram of a carbon fiber mesh layer formed by overlapping carbon fiber mesh layer blocks of the reinforced cement stabilized macadam foundation road structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 and 2, this embodiment relates to enhancement mode cement stabilized macadam basic unit road structure, including road bed 1, rubble bed course 2, cement stabilized macadam basic unit 3 and the surface course 4 of laying in proper order from the bottom up, at least two-layer carbon fiber net layer 5 has evenly been laid along the direction of height in the inside of cement stabilized macadam basic unit 3. Through set up on the not co-altitude at the rubble basic unit 3 is stabilized to cement, can improve carbon fiber net layer 5's whole tensile strength and shear strength.
The carbon fiber net layer 5 is paved in the cement stabilized macadam base layer 3, so that the tensile strength and the shear strength of the cement stabilized macadam base layer 3 are greatly improved, the crack resistance of the cement stabilized macadam base layer is enhanced, the cracking of the pavement layer 4 is reduced, the problems that the existing cement stabilized macadam base layer 3 is low in tensile strength and shear strength and is easy to crack when meeting high tensile force and shear force and expansion with heat and contraction with cold are solved, and the cement stabilized macadam base layer has the advantages of simple structure, convenience in construction, good crack resistance and high stability.
As shown in fig. 2 and 3, each carbon fiber mesh layer 5 includes a plurality of carbon fiber mesh layer blocks 51, and the plurality of carbon fiber mesh layer blocks 51 are sequentially overlapped along the length direction of the cement stabilized macadam foundation 3 to form a long-distance carbon fiber mesh layer 5, so that the carbon fiber mesh layer 5 and the cement stabilized macadam foundation 3 have the same length. The length of the lap zone 52 between two carbon fiber mesh layer blocks 51 is 300-500 mm.
The carbon fiber net layer 5 is in a grid shape, so that the tensile strength and the shear strength of the cement stabilized macadam base layer 3 can be improved, and the crack resistance of the cement stabilized macadam base layer is enhanced.
In order to improve the overall mechanical property of the cement stabilized macadam foundation 3, the width of the carbon fiber net layer 5 is equal to that of the cement stabilized macadam foundation 3.
The carbon fiber mesh layer 5 is provided with 4 layers. Of course, the carbon fiber mesh layer 5 may be set to 4 layers or less or 4 layers or more depending on the thickness of the cement-stabilized macadam foundation 3.
The distance between two adjacent carbon fiber net layers 5 is 40-60 mm. The width of the carbon fiber net layer 5 and the width of the cement stabilized macadam foundation layer 3 are both 4000-8000 mm. The thickness of the gravel cushion layer 2 is 80-120 mm.
The gaps between the gravels of the gravel cushion layer 2 are filled with gravel. The pavement layer 4 is asphalt concrete or a common concrete layer.
While the utility model has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the utility model is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. The utility model provides a rubble basic unit road structure is stabilized to enhancement mode cement, its characterized in that includes road bed, rubble bed course, the rubble basic unit and the pavement layer are stabilized to cement that from the bottom up laid in proper order, at least two-layer carbon fiber net layer has evenly been laid along the direction of height in the inside of rubble basic unit is stabilized to cement.
2. A reinforced cement stabilized macadam based roadway structure as claimed in claim 1, wherein each of said carbon fiber mesh layers comprises a plurality of carbon fiber mesh layer blocks which are sequentially overlapped along the length of the cement stabilized macadam based layer.
3. A reinforced cement stabilized macadam based roadway structure as recited in claim 2, wherein said carbon fiber mesh layer is in the form of a mesh.
4. A reinforced cement stabilized macadam based roadway structure as claimed in any one of claims 1 to 3, wherein said carbon fiber mesh layer has a width equal to the width of the cement stabilized macadam based course.
5. A reinforced cement stabilized macadam based roadway structure as claimed in any one of claims 1 to 3, wherein said carbon fiber mesh layer is provided in 4 layers.
6. A reinforced cement stabilized macadam based roadway structure as claimed in claim 5, wherein the distance between two adjacent carbon fiber mesh layers is 40-60 mm.
7. A reinforced cement stabilized macadam based roadway structure as claimed in claim 4, wherein the width of said carbon fiber mesh layer and the width of said cement stabilized macadam based layer are each 4000-8000 mm.
8. A reinforced cement stabilized macadam based roadway structure as claimed in claim 1, wherein said macadam blanket has a thickness of 80-120 mm.
9. A reinforced cement stabilized macadam based roadway structure as recited in claim 8, wherein the gaps between the macadam of said macadam blanket are filled with gravel.
10. A reinforced cement stabilized macadam based roadway structure as recited in claim 1, wherein said pavement layer is an asphalt concrete or a general concrete layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917454.7U CN216156280U (en) | 2021-08-16 | 2021-08-16 | Reinforced cement stabilized macadam base road structure |
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| CN202121917454.7U CN216156280U (en) | 2021-08-16 | 2021-08-16 | Reinforced cement stabilized macadam base road structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450250A (en) * | 2022-10-18 | 2022-12-09 | 中国电建集团昆明勘测设计研究院有限公司 | Reinforced cement stabilized macadam retaining wall structure and construction method |
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2021
- 2021-08-16 CN CN202121917454.7U patent/CN216156280U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450250A (en) * | 2022-10-18 | 2022-12-09 | 中国电建集团昆明勘测设计研究院有限公司 | Reinforced cement stabilized macadam retaining wall structure and construction method |
| CN115450250B (en) * | 2022-10-18 | 2023-08-22 | 中国电建集团昆明勘测设计研究院有限公司 | Reinforced cement stabilized macadam retaining wall structure and construction method |
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