CN219886485U - Base layer reinforcing system of solidified soil reinforced composite pavement - Google Patents
Base layer reinforcing system of solidified soil reinforced composite pavement Download PDFInfo
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- CN219886485U CN219886485U CN202321166948.5U CN202321166948U CN219886485U CN 219886485 U CN219886485 U CN 219886485U CN 202321166948 U CN202321166948 U CN 202321166948U CN 219886485 U CN219886485 U CN 219886485U
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- 239000002689 soil Substances 0.000 title claims abstract description 68
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims description 48
- 239000004568 cement Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 17
- 238000005336 cracking Methods 0.000 abstract description 5
- 201000010099 disease Diseases 0.000 abstract description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 40
- 239000002344 surface layer Substances 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000011152 fibreglass Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to the technical field of road pavement structure design and construction engineering, in particular to a reinforced composite road surface base layer reinforcing system of solidified soil. The utility model has the advantages that: the utility model has the advantages that: 1) The cracking resistance of the solidified soil pavement base layer is enhanced, and the service life of the road is prolonged; 2) Various diseases caused by road cracking are reduced, and road maintenance cost is saved; 3) The construction is simple and feasible, and the safety and reliability are realized; 4) The applicability is strong, and the influence of the dry and wet environment, the temperature and the like is avoided.
Description
Technical Field
The utility model relates to the technical field of road pavement structure design and construction engineering, in particular to a base layer reinforcing system of a solidified soil reinforced composite pavement.
Background
The solidified soil is a technology for treating soil by using a solidifying agent to ensure that the solidified soil has certain strength and stability. The solidified soil for road structures has the following advantages:
(1) The strength and stability of the soil are improved: the solidified soil can enable the soil to have certain strength and stability, so that the solidified soil can be used in projects such as roads, dykes and dams, foundations and the like, and the bearing capacity and stability of the projects are improved;
(2) The environmental protection performance is good: the solidified soil can adopt environment-friendly solidifying agents, such as biological solidifying agents, inorganic solidifying agents and the like, has little pollution to the environment and meets the environment-friendly requirement;
(3) The construction is convenient: the construction of the solidified soil is simple and convenient, and the mechanized construction can be adopted, so that the construction efficiency and quality are improved;
(4) The economy is good: the construction cost of the solidified soil is low, and the solidified soil can be treated by utilizing the local soil and the solidifying agent, so that the engineering cost is reduced.
However, numerous engineering practices have shown that there are also problems with curing the earth-based pavement base layer:
the solidified soil is used as a soil improvement material, and has lower tensile and crack resistance than concrete and cement stabilized macadam, and is usually used for low-grade roads or temporary roads, but even the two roads have large traffic flow such as turning, intersections, entrances and exits, key positions which are easy to generate diseases are easily influenced by factors such as climate, moisture, vehicle load and the like, so that the problems of road surface cracking, deformation and the like are caused. In the soft soil area of southeast coast, because the groundwater level is high, the precipitation supply is abundant, the roadbed is weak, the road disease phenomenon is more serious, seriously influences the use of road, has the hidden danger that leads to the traffic accident, has increased maintenance cost.
Disclosure of Invention
According to the defects of the prior art, the utility model provides a reinforced composite pavement base layer reinforcing system of solidified soil, and the tensile and crack resistance of the surface of the solidified soil pavement base layer can be effectively enhanced by constructing a composite pavement base layer structure formed by solidified soil and a geotechnical glass fiber grating material, so that the reinforced composite pavement base layer reinforcing system of the solidified soil is applicable to reinforcing the solidified soil pavement base layer or key parts (such as road intersections, curves, entrances and exits and the like) in a road.
The utility model is realized by the following technical scheme:
the utility model provides a solidification soil adds muscle compound road surface basic unit reinforcing system which characterized in that: the system sequentially comprises a road base layer, a solidified soil pavement base layer, a geotechnical glass fiber grating layer and a road pavement layer from bottom to top, wherein the solidified soil pavement base layer is paved on the road base layer, the geotechnical glass fiber grating layer is paved on the solidified soil pavement base layer and fixedly connected with the solidified soil pavement base layer and the geotechnical glass fiber grating layer, and the road pavement layer is paved above the geotechnical glass fiber grating layer.
The geotechnical glass fiber grid layer is provided with a gasket, the gasket covers at least one grid hole of the geotechnical glass fiber grid layer, and the gasket is fixedly connected with the solidified soil pavement base layer through cement steel nails.
A plurality of gaskets are uniformly arranged on the geotechnical glass fiber grid layer, and each gasket is fixedly connected with the solidified soil pavement base layer through cement steel nails.
The arrangement density of the gaskets is at least one in each square meter of the geotechnical glass fiber grid layer.
The geotechnical glass fiber grille layer adopts a self-adhesive-free geotechnical glass fiber grille, and the tensile strength of the self-adhesive-free geotechnical glass fiber grille is not less than 100kN/m and the breaking elongation is not more than 3%.
The utility model has the advantages that:
1) The cracking resistance of the solidified soil pavement base layer is enhanced, and the service life of the road is prolonged;
2) Various diseases caused by road cracking are reduced, and road maintenance cost is saved;
3) The construction is simple and feasible, and the safety and reliability are realized;
4) The applicability is strong, and the influence of the dry and wet environment, the temperature and the like is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic diagram of a laid structure of the fiberglass grille of the present utility model.
Detailed Description
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, the labels 1-6 are shown as: the pavement surface layer 1, the geotechnical glass fiber grid 2, the solidified soil pavement base layer 3, the road subgrade 4, the gasket 5 and the cement steel nails 6.
Examples: as shown in fig. 1 and 2, the reinforced composite pavement base layer reinforcing system of the present embodiment is a composite pavement base layer structure composed of the solidified soil and the fiberglass gratings for enhancing the tensile and crack resistance of the surface of the solidified soil pavement base layer and enhancing the connection performance with the pavement surface layer.
Specifically, the pavement base layer reinforcing system in the embodiment sequentially comprises a road subgrade 4, a solidified soil subgrade surface layer 3, a geotechnical glass fiber grid 2 and a pavement surface layer 1 from bottom to top. The road bed 4 is a road foundation to provide a stable supporting effect. The solidified soil roadbed surface layer 3 is paved above the road roadbed 4. The geotechnical glass fiber grille 2 is arranged above the solidified soil roadbed surface layer 3 and fixedly connected with the solidified soil roadbed surface layer 3, so that the tensile and crack resistance of the surface of the solidified soil roadbed surface layer 3 is enhanced through the geotechnical glass fiber grille 2.
In the present embodiment, the geotechnical fiberglass grid 2 is a reinforcing material composed of fiberglass and resin, which has the following characteristics: (1) The geotechnical glass fiber grille has high strength and rigidity, and can effectively enhance the bearing capacity and tensile strength of soil; (2) good corrosion resistance: the geotechnical glass fiber grille has good corrosion resistance, and can be used in humid, acid-base and other severe environments; (3) good aging resistance: the geotechnical glass fiber grille has good ageing resistance and can keep stable performance in long-term use; (4) light weight: the geotechnical glass fiber grille has light weight and is easy to carry and install; (5) convenient construction: the geotechnical glass fiber grille is convenient to construct, can be cut and spliced according to the needs, and is suitable for various complicated terrains and landforms.
As shown in fig. 2, the geotechnical fiberglass grid 2 is fixed with the solidified soil roadbed surface layer 3 through gaskets 5 and cement steel nails 6. The outer dimension of the gasket 5 is larger than the dimension of a grid hole of the geotechnical glass fiber grid 2, so that the gasket 5 can cover the grid hole, then cement steel nails 6 are driven into the gasket 5, and parts of the cement steel nails 6 are driven into the solidified soil roadbed surface layer 3, so that the geotechnical glass fiber grid 2 and the solidified soil roadbed surface layer 3 are fixedly connected. Meanwhile, because the geotechnical glass fiber grille 2 is of a grille structure and is provided with a plurality of grille holes which are uniformly distributed, when the pavement surface layer 1 is paved on the geotechnical glass fiber grille 2, the material part of the pavement surface layer 1 enters into each grille hole, and therefore the connection performance between the solidified soil roadbed surface layer 3 and the pavement surface layer 1 can be effectively improved through the connection of the geotechnical glass fiber grille 2.
The construction method of the embodiment comprises the following construction steps:
(1) And the construction of the road subgrade 4 is finished, the composite design of technical indexes such as compactness and rebound and the related standard requirements are detected, and the surface smoothness of the road subgrade 4 is ensured without ponding.
(2) The construction of the solidified soil pavement base layer 3 is carried out on the surface of the road subgrade 4, and the road mixing construction method or the plant mixing materials can be adopted to be transported to the construction site for direct paving. The mixing proportion of the solidified soil is executed according to the design requirement, and the water content is strictly controlled. The paving thickness of each layer is not more than 30cm, the light road roller and the heavy road roller are matched for operation, and the soil solidification compaction operation is completed within the set time before the initial setting of the curing agent according to the principle of light before heavy, stable before heavy and two sides before middle. And (5) immediately covering the maintenance material after completion and preserving moisture and preserving health regularly.
(3) Before the geotechnical glass fiber grille 2 is constructed, the compaction degree, deflection and the like of the solidified soil pavement base layer 3 are detected, and whether the index requirements of design and related technical regulations are met is checked.
(4) The geotechnical glass fiber grille 2 should calculate the specification and the usage according to the road area. And (5) conveying the cured soil pavement to the surface of the finished cured soil pavement base layer by adopting a conveying vehicle. Preferably, the geotechnical glass fiber grille 2 is non-self-adhesive, the tensile strength is not less than 100kN/m, and the breaking elongation is not more than 3%; when lap joint is needed, the lap joint width is 0.3m.
(5) Spreading the geotechnical glass fiber grille 2 on the surface of a solidified soil pavement base layer 3, spreading by special equipment, fixing by a gasket 5 with the length of 5cm, the width of 5cm and the thickness of 0.3mm, arranging cement steel nails 6 with the length of 5cm, pressing the geotechnical glass fiber grille 2 by the gasket 5, and nailing the gasket 5 into soil by a nail gun, wherein the distribution density is 1/m 2 . The geotechnical glass fiber grille 2 is fixed in a segmented mode, the length of each segment is not more than 5m, and the geotechnical glass fiber grille 2 needs to be tensioned transversely and longitudinally when the geotechnical glass fiber grille is fixed, so that the connection performance between the geotechnical glass fiber grille and the solidified soil pavement base layer 3 is guaranteed.
(6) After the geotechnical glass fiber grille 2 is installed, the pavement surface layer 1 is constructed according to the design file requirements.
The embodiment is implemented in specific manner: the geotechnical glass fiber grid 2 can be selected according to actual conditions so as to meet the requirements of design and construction. The size and the distribution density of the gaskets 5 can also be adaptively adjusted according to the connection requirement between the geotechnical fiberglass grid 2 and the solidified soil pavement base layer 3.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (5)
1. The utility model provides a solidification soil adds muscle compound road surface basic unit reinforcing system which characterized in that: the system sequentially comprises a road base layer, a solidified soil pavement base layer, a geotechnical glass fiber grating layer and a road pavement layer from bottom to top, wherein the solidified soil pavement base layer is paved on the road base layer, the geotechnical glass fiber grating layer is paved on the solidified soil pavement base layer and fixedly connected with the solidified soil pavement base layer and the geotechnical glass fiber grating layer, and the road pavement layer is paved above the geotechnical glass fiber grating layer.
2. The cured soil reinforced composite pavement base layer reinforcing system as set forth in claim 1, wherein: the geotechnical glass fiber grid layer is provided with a gasket, the gasket covers at least one grid hole of the geotechnical glass fiber grid layer, and the gasket is fixedly connected with the solidified soil pavement base layer through cement steel nails.
3. The cured soil reinforced composite pavement base layer reinforcing system as set forth in claim 2, wherein: a plurality of gaskets are uniformly arranged on the geotechnical glass fiber grid layer, and each gasket is fixedly connected with the solidified soil pavement base layer through cement steel nails.
4. A cured soil reinforced composite pavement base layer reinforcing system as set forth in claim 3, wherein: the arrangement density of the gaskets is at least one in each square meter of the geotechnical glass fiber grid layer.
5. The cured soil reinforced composite pavement base layer reinforcing system as set forth in claim 1, wherein: the geotechnical glass fiber grille layer adopts a self-adhesive-free geotechnical glass fiber grille, and the tensile strength of the self-adhesive-free geotechnical glass fiber grille is not less than 100kN/m and the breaking elongation is not more than 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166948.5U CN219886485U (en) | 2023-05-16 | 2023-05-16 | Base layer reinforcing system of solidified soil reinforced composite pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166948.5U CN219886485U (en) | 2023-05-16 | 2023-05-16 | Base layer reinforcing system of solidified soil reinforced composite pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219886485U true CN219886485U (en) | 2023-10-24 |
Family
ID=88400117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321166948.5U Active CN219886485U (en) | 2023-05-16 | 2023-05-16 | Base layer reinforcing system of solidified soil reinforced composite pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219886485U (en) |
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2023
- 2023-05-16 CN CN202321166948.5U patent/CN219886485U/en active Active
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