CN220952753U - Roadbed structure of saline soil road - Google Patents
Roadbed structure of saline soil road Download PDFInfo
- Publication number
- CN220952753U CN220952753U CN202323040649.XU CN202323040649U CN220952753U CN 220952753 U CN220952753 U CN 220952753U CN 202323040649 U CN202323040649 U CN 202323040649U CN 220952753 U CN220952753 U CN 220952753U
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- Prior art keywords
- layer
- soil
- roadbed
- road
- salty
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- 239000002689 soil Substances 0.000 title claims abstract description 84
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims description 16
- 239000011780 sodium chloride Substances 0.000 title claims description 16
- 239000004567 concrete Substances 0.000 claims description 19
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 17
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 17
- 239000004571 lime Substances 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 239000002985 plastic film Substances 0.000 claims description 11
- 229920006255 plastic film Polymers 0.000 claims description 11
- 239000011384 asphalt concrete Substances 0.000 claims description 10
- 239000004746 geotextile Substances 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000009933 burial Methods 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011275 tar sand Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to the technical field of salty soil roadbeds, in particular to a roadbed structure of salty soil roadbeds, which solves the problems that when the salt content of the existing part of highway roadbeds is higher and the depth of burial is shallower, the roadbed structure is easily reinforced by changing and filling, reasonably controlling the height of the roadbed and other methods, so that salt crystallization expansion and wet sinking and slurry turning in salty soil occur in the highway roadbeds, the water saturation and bearing capacity of the soil foundation are reduced, salt expansion is caused, the pavement is partially uneven and swelled, and the original stable structure is damaged. The utility model provides a roadbed structure on salty soil way, includes salty soil way, road bed, lower base layer and last base layer, and salty soil way top is provided with the road bed, and the road bed bottom just is located salty soil and has seted up the soil pit of predetermineeing on the road. The utility model effectively prevents the erosion of water and salt, reduces the problems of road surface damage, cracking and the like, and prolongs the service life of the road.
Description
Technical Field
The utility model relates to the technical field of saline soil roadbeds, in particular to a roadbed structure of a saline soil roadbed.
Background
Along with the continuous expansion of the coverage range of the highway network in China, some highway projects are limited by objective conditions and must be constructed in the saline soil areas, so that higher requirements are provided for roadbed construction technology and saline soil treatment technology. Therefore, the construction unit must fully understand the main influence of the saline soil on the highway subgrade construction, and adopts an effective treatment method to improve the standardization and scientificity of construction operation, so that a good foundation can be laid for the quality safety of highway engineering.
At present, the aim of reinforcing the roadbed structure is mainly achieved by replacing and filling, reasonably controlling the height of the roadbed and the like in the process of treating the salty soil roadbed, but when the salt content of part of highway roadbed is higher and the depth of burial is shallower, the highway roadbed is easy to cause salt crystallization expansion and collapse and slurry turning in salty soil, so that the soil foundation is saturated, the bearing capacity is reduced, the salt expansion is carried out, the local part of the road surface is uneven and swelled, and the original stable structure is damaged. Therefore, we propose a roadbed structure of a saline soil road to solve the above problems.
Disclosure of utility model
The utility model aims to provide a roadbed structure of a salty soil road, which solves the problems that when the salt content of the existing part of roadbed of a highway is higher and the depth of burial is shallower, the roadbed structure is easily reinforced by changing and filling, reasonably controlling the height of the roadbed and other methods, so that the roadbed of the highway is easy to cause salt crystallization, expansion, shrinkage and slurry turning in salty soil, the water saturation and bearing capacity of the roadbed are reduced, salt expansion is caused, the pavement is partially uneven and swelled, and the original stable structure is damaged.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The roadbed structure of the saline soil road comprises the saline soil road, a roadbed, a lower roadbed layer and an upper roadbed layer, wherein the roadbed is arranged at the top of the saline soil road, and a preset soil pit is arranged at the bottom of the roadbed and positioned in the saline soil road; the upper base layer comprises a gravel concrete layer, an asphalt sand layer and an asphalt concrete layer, wherein the gravel concrete layer is arranged below the asphalt concrete layer, the gravel concrete layer is paved on the top of the roadbed, and the asphalt sand layer is paved on two sides of the gravel concrete layer.
Preferably, the lower base layer comprises a leveling soil layer, a gravel layer, a lime layer and a cement layer which are arranged in a preset soil pit, wherein the leveling soil layer is paved in the preset soil pit, the gravel layer is paved above the leveling soil layer, the lime layer is paved above the gravel layer, the cement layer is paved above the lime layer, and the upper part of the cement layer is positioned at the bottom of the roadbed.
Preferably, geotextile is arranged between the flat soil layer and the gravel layer, and the geotextile is obliquely laid above the flat soil layer and below the gravel layer.
Preferably, a plastic film is arranged between the lime layer and the gravel layer, and the plastic film is obliquely laid below the lime layer and above the gravel layer.
Preferably, drainage ditches are formed in two sides of the top of the roadbed.
The utility model has at least the following beneficial effects:
Through gravel layer and leveling soil layer and original salty soil dock mutually, better lower base layer of keeping stable and improve the stability and the drainage function of soil, can not cause great pollution to surrounding soil environment simultaneously, protect ecological environment, increase through the cement layer to road bed bulk strength and steadiness, be used for blockking the salt and soak the region that is close to the road bed through geotechnique, can block outside salt water, the infiltration of salt through plastic film together with geotechnique cloth, make the road bed can increase of service life more, can collect the precipitation of sleet weather and discharge it through the escape canal, reduce the infiltration of rainwater to the road bed by a wide margin.
The utility model also has the following beneficial effects:
Through the rubble concrete layer of laying at the road bed top, further increase the steadiness to last base course, asphalt concrete layer and asphalt sand layer are laid with both sides at rubble concrete layer top, roll closely knit through heavy road roller, make the road surface durable, intensity is high, and the wholeness is good, has good waterproof structural style, prevents the erosion of moisture and salinity effectively, reduces the emergence of road surface damage, the emergence of crazing scheduling problem to prolong its life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cut-away view of a lower base layer of the present utility model;
fig. 3 is a cut-away view of an upper base layer of the present utility model.
In the figure: 1. salting soil roads; 2. leveling soil layers; 3. a layer of gravel; 4. a cement layer; 5. geotextile; 6. a plastic film; 7. a crushed stone concrete layer; 8. a layer of tar sand; 9. a drainage ditch; 10. an asphalt concrete layer; 11. a lime layer; 12. a lower base layer; 13. an upper base layer; 14. roadbed.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, a roadbed structure of a salty soil road comprises a salty soil road 1, a roadbed 14, a lower roadbed layer 12 and an upper roadbed layer 13, wherein the roadbed 14 is arranged at the top of the salty soil road 1, a preset soil pit is formed in the salty soil road 1 at the bottom of the roadbed 14, specifically, the preset soil pit is formed in the salty soil road 1 and is buried through the lower roadbed layer 12, the roadbed 14 is paved at the top of the lower roadbed layer 12, and then the upper roadbed layer 13 is paved on the roadbed 14, so that the roadbed structure has good infiltration resistance and stability, the bearing capacity of the roadbed 14 is improved, the problem that the salty soil swells to cause the dissolution of a road surface is solved, and the service life of the roadbed structure is prolonged.
Further, go up the base course 13 and include rubble concrete layer 7, asphalt sand layer 8 and asphalt concrete layer 10, rubble concrete layer 7 sets up in asphalt concrete layer 10's below, rubble concrete layer 7 lays in roadbed 14 top, asphalt sand layer 8 lays in the both sides of rubble concrete layer 7, specifically, through the rubble concrete layer 7 of laying at roadbed 14 top, further increase the steadiness to last base course 13, lay asphalt concrete layer 10 and asphalt sand layer 8 in rubble concrete layer 7 top and both sides, roll closely knit through heavy road roller, make the road surface durable, intensity is high, the wholeness is good, have good waterproof structural style, prevent the erosion of moisture and salt effectively, reduce the emergence of road surface damage, the problem such as crazing, thereby prolong its life.
Further, the lower base layer 12 comprises a leveling soil layer 2, a gravel layer 3, a lime layer 11 and a cement layer 4 which are arranged in a preset soil pit, the leveling soil layer 2 is paved in the preset soil pit, the gravel layer 3 is paved above the leveling soil layer 2, the lime layer 11 is paved above the gravel layer 3, the cement layer 4 is paved above the lime layer 11, the cement layer 4 is positioned at the bottom of the roadbed 14, and specifically, through the arrangement of the gravel layer 3 and the leveling soil layer 2, materials with good water permeability of filling soil can be replaced in the preset soil pit, the materials are butted with original salty soil, the stability and the drainage function of soil can be better kept, meanwhile, the environmental protection can not be caused by larger pollution to the surrounding soil environment, and the overall strength and the stability of the roadbed 14 can be improved through the cement layer 4.
Further, geotextile 5 is arranged between the leveling soil layer 2 and the gravel layer 3, the geotextile 5 is obliquely paved above the leveling soil layer 2 and below the gravel layer 3, specifically, the geotextile 5 is used as a separation layer through the arrangement of the geotextile 5, and the geotextile is used for separating building materials (such as soil, sand, soil, concrete and the like) with different physical properties by means of polyester staple fiber needling. The two or more materials are not lost or mixed, the overall structure and functions of the materials are maintained, the bearing capacity of the structure is enhanced, and the structure is used for preventing salt from immersing in the area close to the roadbed 14.
Further, be provided with plastic film 6 between lime layer 11 and the gravel layer 3, plastic film 6 slope lays in lime layer 11 below and gravel layer 3 top, specifically, through plastic film 6's setting, plastic film 6 is as separating layer, utilize polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resin made film, have good chemical stability, heat-sealability, water resistance and dampproofing, freezing resistance, can separate outside salt water, the infiltration of salt together with geotechnique's cloth 5, make road bed 14 can increase of service life more.
Further, drainage ditches 9 are formed in two sides of the top of the roadbed 14, specifically, precipitation in rainy and snowy weather can be collected and discharged through the arrangement of the drainage ditches 9, and the penetration of rainwater to the roadbed 14 is greatly reduced.
To sum up:
Through setting up of gravel layer 3 and leveling soil layer 2, can be through changing the material that the soil permeability is good in predetermineeing the soil pit, dock with original salty soil relatively, better the lower base course 12 of keeping stable, in addition, through the better stability and the drainage function of improvement of laying the lime layer 11, can not cause great pollution to surrounding soil environment simultaneously, protect ecological environment, increase through cement layer 4 to road bed 14 bulk strength and steadiness, be used for blocking the region that the salt is close to road bed 14 through geotechnique cloth 5, can block outside salt water together with geotechnique cloth 5 through plastic film 6, the infiltration of salt, make road bed 14 can increase life more, can collect the precipitation of rain and snow weather and discharge it, reduce the infiltration of rainwater to road bed 14 by a wide margin, through the concrete layer 7 of laying at road bed 14 top, further increase the steadiness to upper base course layer 13, asphalt concrete layer 10 and asphalt layer 8 are laid with both sides, through heavy road roller compaction, and use, high strength, good overall, the road surface has good overall strength, the form of effectively preventing the salt from damaging the road surface, thereby the problem of water-proof, the road surface is broken, the service life is prolonged, and the road surface is damaged, and the water-proof.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a roadbed structure on saline soil way, includes saline soil way (1), road bed (14), lower base layer (12) and last base layer (13), its characterized in that, saline soil way (1) top is provided with road bed (14), preset soil pit has been seted up to road bed (14) bottom and in being located saline soil way (1), go up base layer (13) and include rubble concrete layer (7), asphalt sand layer (8) and asphalt concrete layer (10), rubble concrete layer (7) set up in the below of asphalt concrete layer (10), rubble concrete layer (7) are laid in road bed (14) top, asphalt sand layer (8) are laid in the both sides of rubble concrete layer (7).
2. The roadbed structure of a salty soil road according to claim 1, wherein the lower foundation layer (12) comprises a leveling soil layer (2), a sand gravel layer (3), a lime layer (11) and a cement layer (4) which are arranged in a preset soil pit, the leveling soil layer (2) is paved in the preset soil pit, the sand gravel layer (3) is paved above the leveling soil layer (2), the lime layer (11) is paved above the sand gravel layer (3), the cement layer (4) is paved above the lime layer (11), and the upper part of the cement layer (4) is positioned at the bottom of the roadbed (14).
3. The roadbed structure of a salty soil road according to claim 2, wherein geotextile (5) is arranged between the flat soil layer (2) and the gravel sand layer (3), and the geotextile (5) is obliquely laid above the flat soil layer (2) and below the gravel sand layer (3).
4. Roadbed structure of a salty soil road according to claim 2, characterized in that a plastic film (6) is arranged between the lime layer (11) and the gravel layer (3), and the plastic film (6) is obliquely laid below the lime layer (11) and above the gravel layer (3).
5. Roadbed structure of a salty soil road according to claim 1, characterized in that drainage ditches (9) are arranged on both sides of the top of the roadbed (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323040649.XU CN220952753U (en) | 2023-11-10 | 2023-11-10 | Roadbed structure of saline soil road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323040649.XU CN220952753U (en) | 2023-11-10 | 2023-11-10 | Roadbed structure of saline soil road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220952753U true CN220952753U (en) | 2024-05-14 |
Family
ID=91009958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323040649.XU Active CN220952753U (en) | 2023-11-10 | 2023-11-10 | Roadbed structure of saline soil road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220952753U (en) |
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2023
- 2023-11-10 CN CN202323040649.XU patent/CN220952753U/en active Active
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