CN116516756A - Road structure and manufacturing method thereof - Google Patents
Road structure and manufacturing method thereof Download PDFInfo
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- CN116516756A CN116516756A CN202310399280.7A CN202310399280A CN116516756A CN 116516756 A CN116516756 A CN 116516756A CN 202310399280 A CN202310399280 A CN 202310399280A CN 116516756 A CN116516756 A CN 116516756A
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- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 239000010410 layer Substances 0.000 claims abstract description 138
- 239000002344 surface layer Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 54
- 239000002910 solid waste Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims description 21
- 239000004568 cement Substances 0.000 claims description 18
- 239000002243 precursor Substances 0.000 claims description 15
- 239000002351 wastewater Substances 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 239000002689 soil Substances 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 9
- 238000009270 solid waste treatment Methods 0.000 abstract description 4
- 239000010426 asphalt Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 239000002356 single layer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000009969 flowable effect Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a road structure, in particular a rural road structure, comprising: the base layer is arranged on the roadbed, the base layer comprises a subbase layer and a pavement base layer, the subbase layer is arranged at the lower part and is in contact with the roadbed, the pavement base layer is arranged on the subbase layer, and the upper surface of the pavement base layer is arranged to be a plane; the surface layer is arranged on the pavement base layer, the upper surface forms a road arch with the middle part high and the two sides low, and the lower surface has the same width with the upper surface of the pavement base layer. The base layer and the surface layer are made of the same material volcanic ash active industrial solid waste water mud flow material, the construction process is simpler and more convenient, the road structure is more stable, the early damage of the road surface layer from the outer side edge caused by water and soil loss of road shoulders is avoided, a large amount of solid waste treatment can be effectively carried out on the volcanic ash active industrial solid waste water mud flow material, and a new outlet is provided for reutilization and harmless treatment of the volcanic ash active industrial solid waste water mud flow material.
Description
Technical Field
The present disclosure relates to road structures, and more particularly, to a manufacturing structure of a rural road.
Background
For rural roads in plain areas, the road width is smaller, although the construction standard of the rural roads is standardized in GBT51224-2017 rural road engineering technical Specification and JTG2111-2019 small traffic rural highway engineering technical Standard. However, the rural road construction specified in the related standard is more suitable for construction using a large road construction machine. In practical cases, large construction machines cannot perform construction due to the limitation of land occupation of farmlands and agricultural houses, and only small construction machines or manual compaction can be used, so that the compactness is generally insufficient. In summer, the rain water is temporarily soaked, the belt is washed, and the road is seriously damaged.
Especially, the road shoulders on two sides are very narrow due to occupation of farmland and agricultural houses, and the problem of unsmooth drainage on two sides of a road is commonly caused. After the road shoulder is scoured and damaged, the edge of the asphalt pavement is gradually unstable and damaged, so that the originally narrow road is more difficult to pass.
Furthermore, the soil subgrade is connected with the lands at the two sides, so that the narrow soil subgrade is affected by farmland cultivation and irrigation, weeds at the two sides of the road are clustered, soil particles accumulated after daily accumulation and monthly accumulation are accumulated, the depth of the side ditch becomes shallow gradually, and a plurality of rural roads in plain areas and the lands at the two sides are not provided with obvious boundaries. When the rural land is irrigated, the infiltration effect of capillary water is large in damage to the soil road shoulder, and early collapse of the road shoulder part is easy to occur.
In addition, the construction is performed in a narrow space, the movement efficiency of the construction machine is extremely low, and the construction in farmland on both sides causes adverse social influence, thereby generating additional construction compensation cost. And the construction machine generates serious CO at the moment 2 Emission problems.
Disclosure of Invention
In view of the above problems, the present disclosure provides a road structure and a method for manufacturing the same, in which the same material is used for the substrate and the surface layer, the pozzolan active industrial solid waste water-mud flow material is used for manufacturing the road structure, the construction process is simpler and more convenient, the road structure is more stable, the road surface layer is not damaged early from the outer side edge due to water and soil loss of the road shoulder, a great amount of solid waste treatment can be effectively performed for the pozzolan active industrial solid waste water-mud flow material, and a new outlet is provided for reutilization and harmless treatment.
According to a first aspect of the present disclosure, there is provided a road structure characterized in that: the base layer is arranged on the roadbed, the base layer comprises a subbase layer and a pavement base layer, the subbase layer is arranged at the lower part and is in contact with the roadbed, the pavement base layer is arranged on the subbase layer, and the upper surface of the pavement base layer is arranged to be a plane;
the surface layer is arranged on the pavement base layer, the upper surface forms a road arch with the middle part high and the two sides low, and the lower surface has the same width with the upper surface of the pavement base layer.
Further, the base layer and the outer side of the surface layer are formed with continuous slopes forming a prescribed angle with the horizontal plane.
Further, the thicknesses of the subbing layer and the pavement base layer are both 100mm to 200mm.
Furthermore, the surface layer is cast by adopting the pozzolanic active industrial solid wastewater and mud flow material, and is formed by cutting after primary solidification.
According to a second aspect of the present disclosure, there is provided a method of manufacturing a road structure, comprising:
designing and manufacturing a roadbed according to the size of a road;
outer templates which form an angle alpha with the horizontal plane are arranged at the edges of two sides of the roadbed;
pouring pozzolanic active industrial solid wastewater sludge flow materials on the roadbed and between the outer templates on two sides to manufacture the base layer;
paving a flowing material of the volcanic ash active industrial solid waste cement between the outer templates after the base layer is primarily solidified, and naturally leveling the flowing material to prepare a surface layer precursor;
cutting the upper surface of the surface layer precursor after the surface layer precursor is primarily solidified to form a road arch with a high middle part and low two sides so as to manufacture a surface layer;
and removing the outer template, and curing to enable the road structure to be continuously cured.
According to a third aspect of the present disclosure, there is provided a manufacturing method of a road, comprising:
outer templates are arranged on two sides of the existing road base,
pouring a volcanic ash active industrial solid wastewater mud flow material between the outer templates at two sides, naturally leveling the volcanic ash active industrial solid wastewater mud flow material, and manufacturing a surface layer precursor;
cutting the upper surface of the surface layer precursor after the surface layer precursor is primarily solidified to form a road arch with a high middle part and low two sides so as to manufacture a surface layer;
and removing the outer template, and curing to enable the surface layer to be continuously cured.
Further, the outer templates are arranged along the side slopes of the two sides of the existing road base layer, so that the side slopes of the surface layer are continuous with the side slopes of the two sides of the existing road base layer.
Furthermore, the outer templates are vertically arranged in the middle of the side slopes at the two sides of the existing road base layer, and after the surface layer precursor is primarily solidified, cutting treatment is further carried out on the two sides of the surface layer precursor to form the side slopes at the two sides of the surface layer.
According to the road structure and the manufacturing method thereof, the road shoulder structure is omitted, the base layer and the surface layer are made of the same-material volcanic ash active industrial solid waste water flowing material, the base layer provides good support for the surface layer, meanwhile, the construction process is simpler and more convenient, the road structure is firmer, the road surface layer is not damaged early from the outer side edge due to water loss and soil loss of the road shoulder, the road structure is analyzed from an economic angle, sand and stone are not needed to be purchased, the material cost is greatly reduced, the road structure is analyzed from a construction angle, the road structure is more suitable for the characteristics of being narrow of a rural road, the road structure is analyzed from engineering reliability, the rural road is not provided with heavy vehicles, the traffic volume is not large, the cement flowing material belongs to a strength controllable material, the strength can be adjusted by adjusting the cement consumption, the strength requirement of each layer of the road structure is further met, and meanwhile, a large amount of solid waste water flowing material of the volcanic ash active industrial solid waste water flowing material can be effectively processed, and a new road is provided for reutilization and harmless treatment.
Drawings
The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. For a better understanding of the present disclosure, and without limiting the disclosure, the same or similar reference numbers refer to the same or similar elements in the drawings, wherein:
FIG. 1 is a cross-sectional view of a roadway structure in accordance with a preferred embodiment of the present disclosure;
FIG. 2 is an enlarged view of a portion of a cross-sectional view of a pavement structure in accordance with a preferred embodiment of the present disclosure;
FIG. 3 is an explanatory flowchart of a road construction process according to a preferred embodiment of the present disclosure;
FIG. 4 is a construction flow diagram of a preferred embodiment of the present disclosure;
FIG. 5 is a graph of cure time versus strength for a pozzolan-activated industrial solid cement flow material and a conventional water-stabilized macadam filler material used in the present disclosure.
The pavement comprises a base layer 10, an underlayment layer 11, a pavement base layer 12, a surface layer 20, a road arch 21, a 30 outer template, a base layer 10', an underlayment layer 11', a pavement base layer 12 and a surface layer 20 '.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to be within the scope of this disclosure.
Example 1
In this example, a pozzolanic active industrial solid waste such as asphalt mixing station recycled powder is used as a roadbed construction material, and a preferred embodiment of rural roads in a plain season based on the present invention will be described in detail. Fig. 1 is a cross-sectional view of a pavement structure according to a preferred embodiment of the present invention. Fig. 2 is an enlarged view of a portion of a cross-sectional view of the pavement structure of fig. 1.
Road structure
As shown in fig. 1 to 2, the structure of the road 1 in the present embodiment includes a base layer 10 and a surface layer 20. Wherein the base layer 10 is filled with a plurality of layers of base layers by pouring. In the present embodiment, the base layer 10 is laid in multiple layers, that is, at least, includes a base layer 11 placed on the lowermost layer of the base layer and a road surface base layer 12 placed on the uppermost layer of the base layer 10, which are connected to a roadbed (not shown). In the present embodiment, since the base layer 10 has a two-layer structure, only the case of the base layer 11 laid on the lowermost layer and the road surface base layer 12 laid thereon will be described in detail, but the description of the present embodiment is also applicable to the case where the base layer 10 is composed of 3 or more layers.
The bottom surface of the lowermost base layer 11 has a width greater than the width of the top surface of the uppermost pavement base layer 12, so that the entire cross section of the base layer 10 is formed in an upright trapezoidal shape.
During construction, the outer templates are used for limiting the slopes of the two sides of the base layer 10, and the included angle alpha between the two sides of the roadbed and the horizontal plane is preferably 75-85 degrees. By forming a larger angle α, the slope of both sides of the base layer 10 can be made larger, thereby minimizing the width of the bottom layer of the base layer 10 while securing the road surface width. Therefore, the construction method can make the construction of narrow rural roads less occupy the empty spaces on both sides of the roads. The method is particularly suitable for the condition that farmland and farmhouse are arranged on the road side.
Increasing the angle α to form a steeper subgrade side will generally make the base layer 10 more susceptible to soil and water erosion such as two-sided field irrigation, rain wash, and the like. Especially, when natural foundation soil on the lower side of the base layer 10 is lost due to the erosion of water and soil, the two sides of the base layer 10 are adversely affected. In this embodiment, however, the base layer 10 is laid by filling the pozzolan active industrial solid waste cement flow material, so that the cost of the material is greatly reduced, the analysis is performed from an economic perspective, sand and stone are not required to be purchased, the analysis is performed from a construction perspective, the method is more suitable for the characteristics of narrow rural roads, the analysis is performed from engineering reliability, the rural roads have no heavy-duty vehicles, the traffic volume is not large, the cement flow material belongs to a strength-controllable material, and the strength can be adjusted by adjusting the cement consumption, so that the strength requirement of each layer of structure of the road is met.
In this embodiment, the thickness of the base layer 11 and the road surface base layer 12 in the two base layers 10 is set to 100mm to 200mm. If the thickness of the single-layer base layer 10 (the base layer 11, the road surface base layer 12) is less than 100mm, there is a possibility that the strength such as the modulus of elasticity of the base layer 10 (the base layer 11, the road surface base layer 12) is insufficient, and the road durability is lowered, and the road life is seriously shortened.
If the thickness of the single-layer base layer 10 (the subbing layer 11, the road surface base layer 12) is greater than 200mm, the single-layer base layer 10 (the subbing layer 11, the road surface base layer 12) has a long curing time after being filled with the pozzolanic active industrial solid cement flow material, which causes a problem of an increase in the construction time. Similarly, in the case of using a single layer of substrate by combining a plurality of substrates 10 (the base substrate 11 and the pavement substrate 12), the time required for curing and curing the pozzolanic active industrial solid cement flow material is not only shortened, but also prolonged, and the overall strength of the substrate tends to be insufficient due to insufficient curing of the flow material inside.
In this embodiment, the surface layer 20 is provided on the upper surface of the upper pavement base layer 12, and the surface layer 20 is formed by casting a form using the same solid cement flow material as the base layer 10. The facing layer 20 is formed in a sectional shape with a high middle portion and low sides, and a road arch 21 is formed in the middle portion. Preferably, the upper surfaces of both sides of the surface layer 20 form an angle gamma with the horizontal plane, i.e. a road surface cross slope, and the angle gamma is preferably in the range of 1% < iγ < 3% to facilitate the drainage of the road surface.
As shown in fig. 1, on the outer side of the facing layer 20, a slope having the same gradient as the outer side of the base layer 10, that is, an angle α with respect to the horizontal plane is formed as the outer side of the base layer 10. And the outer edge of the facing layer 20 is continuous with the outer side of the base layer 10. Thus, the same form as the subgrade 10 can be used to cast the face layer 20 when the face layer 20 is manufactured, without the need for removing and reinstalling the outer form for the face layer 20 during road construction.
Construction process
The following describes the construction process of the road structure according to the present embodiment in detail. In the construction of the road structure of the present embodiment, since the base layer 10 and the surface layer 20 are cast using the flowable material made of the mixed material of the pozzolanic active industrial solid waste and cement, the properties of the material are flexibly utilized in the construction, and a new manufacturing method is employed. In the description of the construction process of the road structure of the present embodiment, since the morphology of the underlayment 11, the pavement base 12, and the surface layer 20 is changed, each portion before the morphology change is marked with a prime symbol for convenience of description.
As shown in fig. 3, first, in step S1, a roadbed (a portion below the base layer 10, not shown in the drawing) is excavated according to the design dimensions of a road, and a compaction process is performed on the roadbed using an engineering machine. The working procedure of roadbed construction can use any previous construction mode, and is not repeated here.
Next, in step S2, the outer forms 30 are formed at both side edges of the roadbed. Since the included angle α between the both side surfaces of the base layer 10 and the horizontal plane is 75 ° to 85 °, the outer form 30 is disposed so as to correspond to the both side slopes. By arranging the outer templates 30 to obviously distinguish road construction from space and land on two sides, the safety construction range is effectively shortened, and the influence on farmland and house on two sides in rural road construction is greatly relieved.
Then, in step S3, a base layer 10' is made by casting a flowable material of pozzolanic active industrial solid cement on the subgrade and between the outer formworks 30 on both sides.
In this embodiment, since the final base layer 10 has a two-layer structure as described above, the base layer 11 'is cast first, and the pavement base layer 12' is cast on the base layer 11 'after the early solidification of the base layer 11' reaches a predetermined strength according to the solidification time characteristics of the pozzolan active solid cement flow material. Because of the short early setting time of the pozzolanic active industrial solid cement active material, the strength is not high enough to perform the next construction under the strength without causing damage to the subbase layer 11'.
In order to improve the road strength, a plurality of base layers are sequentially poured, in which case, in order to effectively shorten the construction time for base layer production, early curing can be performed after pouring the subbase layer 11 'and the pavement base layer 12', respectively, and the poured base layers are sprayed with water and covered with a film material, so that the pozzolanic active solid waste flowable material can complete early curing more quickly.
In this embodiment, the pavement base structure is preferably subjected to health maintenance as shown in step S4. In the curing process, the upper surface of the base layer 10 is covered with a plastic film for 14 days, and then water is sprayed to cure for 14 days to 28 days, so that the overall strength of the base layer 10 reaches more than 0.8 Mpa.
Finally, in step S5, a surface layer 20 'of pozzolanic active industrial solid cement flow material is poured over the pavement base layer 12 inside the outer formworks 30 on both sides, and the surface layer 20' is left to naturally level.
After the poured surface layer 20' is cured at an early stage and the strength reaches 0.3Mpa to 1.1Mpa, in step S6, the upper surface of the surface layer 20 is cut to form the road arch 21. Thus, road arches 21 with high middle and low sides are formed, and road surface transverse slopes with gamma angles (1% < igamma < 3%) are formed between the upper surfaces of the two sides of the road arches 21 and the horizontal plane.
The surface layer 20 is subjected to curing treatment, the curing speed of the pozzolanic active industrial solid waste cement flowing material can be increased through curing treatment, and after reaching 2Mpa, the surface can be ensured not to be damaged under the conditions of dynamic pressure and static load of a small-sized vehicle. The present invention takes advantage of the nature of pozzolanic active industrial solid waste cement flow materials.
Then, in step S6, the whole surface layer 20 is watered and covered with a film for curing, so as to improve the whole strength of the surface layer 20 and the base layer 10.
For the pozzolan active industrial solid waste water and mud flowing material, the method is a great problem to be solved in the aspect of industrial solid waste treatment, serious environmental problems are caused by improper treatment, and the problems of high difficulty in utilization and small reuse amount of solid waste occur. The rural road structure provided by the embodiment of the invention can effectively realize a large amount of solid waste treatment on the pozzolanic active industrial solid waste flowing material, and provides a new way for reutilization and innocent treatment of the pozzolanic active industrial solid waste flowing material.
Example two
The above describes the situation of completely manufacturing the rural road structure in the embodiment of the present invention in detail, but the present invention is not limited thereto, and the present invention is also applicable to the situation of repairing the rural road. A second embodiment of repairing a rural road to which the present invention is applied will be described in detail.
In this embodiment, when the existing road is damaged by long-term use, the road surface is repaired by using the pozzolan active solid wastewater-mud flow material. The existing road is usually built by using water stabilized macadam as a base layer, and is usually provided with soil shoulders. When the soil shoulder is damaged due to long-term erosion of water and soil, the edge part of the asphalt surface layer connected with the soil shoulder is damaged, so that a plurality of holes are formed in the edge part of the asphalt surface layer to cause damage. At this time, repair of the asphalt pavement and the road shoulder is required.
When repairing a road surface damaged by a road surface, first, as shown in fig. 4, in step S100, the road surface and the road shoulder damaged by the road surface are removed. After the damaged pavement and road shoulders are removed, the base layer formed by solidification of the water stabilized macadam and the like below is exposed, and the exposed base layer is cleaned. Because the strength of the base layer after solidification is high, and the base layer can be used continuously due to the buffering of the pavement of the cracked and broken asphalt surface layer;
next, according to the different setting modes of the outer template, two different processing steps are divided:
in step S200, the outer templates are arranged along the side slopes of the two sides of the existing road base;
in step S300, pouring a pozzolanic active industrial solid wastewater flowing material between the outer templates, and forming a surface layer precursor after the pozzolanic active industrial solid wastewater flowing material is naturally leveled, wherein the side slopes of the two sides of the poured surface layer precursor are continuous with the side slopes of the two sides of the existing road base;
after the surface layer precursor is cured initially, the strength reaches 0.3 Mpa-1.1 Mpa, in step S400, the upper surface is cut to form a road arch with high middle and low sides, the surface layer is manufactured, and a road surface transverse slope with a gamma angle (1% < igamma < 3%) is formed between the upper surfaces of the two sides of the road arch and the horizontal plane.
In step S201, the outer templates are vertically arranged in the middle of side slopes at both sides of the existing road base layer;
in step S301, a pozzolanic active industrial solid wastewater slurry flow material is poured between the outer templates, and after the pozzolanic active industrial solid wastewater slurry flow material is naturally leveled, a surface layer precursor is formed, wherein two sides of the poured surface layer precursor are perpendicular to a horizontal plane.
After the surface layer precursor is primarily cured, in step S401, cutting the two sides to form side slopes of the surface layer, cutting the upper surfaces of the side slopes to form road arches with high middle and low two sides, and manufacturing the surface layer, wherein a road surface transverse slope with a gamma angle (1% < igamma < 3%) is formed between the upper surfaces of the two sides of the road arches and a horizontal plane.
Finally, in step S500, the whole surface layer is watered and covered with a film for curing, so as to improve the whole strength of the surface layer and the base layer.
The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (9)
1. A roadway structure comprising:
the base layer is arranged on the roadbed, the base layer comprises a subbase layer and a pavement base layer, the subbase layer is arranged at the lower part and is in contact with the roadbed, the pavement base layer is arranged on the subbase layer, and the upper surface of the pavement base layer is arranged to be a plane;
the surface layer is arranged on the pavement base layer, the upper surface forms a road arch with the middle part high and the two sides low, and the lower surface has the same width with the upper surface of the pavement base layer.
2. The roadway structure of claim 1, wherein:
the base layer and the outer side of the surface layer are formed with continuous slopes forming a prescribed angle with the horizontal plane.
3. The roadway structure of claim 2, wherein:
the continuous slope forms an alpha angle with the horizontal plane, and alpha is more than or equal to 75 degrees and less than or equal to 85 degrees.
4. The roadway structure of claim 1, wherein:
the thickness of the subbing layer and the pavement base layer is more than 100mm and less than 200mm.
5. The roadway structure of claim 1, wherein:
the surface layer is formed by pouring a volcanic ash active industrial solid wastewater and mud flowing material and cutting after primary solidification.
6. A method of manufacturing a road, comprising:
designing and manufacturing a roadbed according to the size of a road;
outer templates which form an angle alpha with the horizontal plane are arranged at the edges of two sides of the roadbed;
pouring pozzolanic active industrial solid wastewater and mud flow materials on the roadbed and between the outer templates at two sides to manufacture a base layer;
after the base layer is initially solidified, paving a flowing material of the volcanic ash active industrial solid waste cement between the outer templates, and naturally leveling the flowing material to prepare a surface layer;
cutting the upper surface of the surface layer after the surface layer is initially solidified to form a road arch with a high middle part and low two sides so as to manufacture the surface layer;
and removing the outer template, and curing to enable the road structure to be continuously cured.
7. A method of manufacturing a road, comprising:
outer templates are arranged on two sides of the existing road base,
pouring a volcanic ash active industrial solid wastewater mud flow material between the outer templates at two sides, naturally leveling the volcanic ash active industrial solid wastewater mud flow material, and manufacturing a surface layer;
cutting the upper surface of the surface layer after the surface layer is initially solidified to form a road arch with a high middle part and low two sides so as to manufacture the surface layer;
and removing the outer template, and curing to enable the surface layer to be continuously cured.
8. The method for manufacturing a road according to claim 7, wherein,
the outer templates are arranged along the side slopes of the two sides of the existing road base layer, so that the side slopes of the surface layer are continuous with the side slopes of the two sides of the existing road base layer.
9. The method for manufacturing a road according to claim 7, wherein,
the outer templates are vertically arranged in the middle of side slopes at two sides of the existing road base,
after the surface layer is initially solidified, cutting treatment is further carried out on two sides of the surface layer precursor, so that side slopes on two sides of the surface layer are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310399280.7A CN116516756A (en) | 2023-04-10 | 2023-04-10 | Road structure and manufacturing method thereof |
Applications Claiming Priority (1)
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