CN215482016U - Durable type full-transparent asphalt pavement structure for resource recycling - Google Patents
Durable type full-transparent asphalt pavement structure for resource recycling Download PDFInfo
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- CN215482016U CN215482016U CN202121197983.4U CN202121197983U CN215482016U CN 215482016 U CN215482016 U CN 215482016U CN 202121197983 U CN202121197983 U CN 202121197983U CN 215482016 U CN215482016 U CN 215482016U
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Abstract
The utility model relates to a durable type full-through asphalt pavement structure of resource recycle relates to the technical field of road construction, and it includes from last pitch layer, basic unit and the soil matrix that sets gradually down, and the soil matrix upper berth is equipped with the bank protection, and the bank protection setting is in the both sides of pitch layer and basic unit, and the basic unit includes fly ash bed course and/or fly ash slag mixing bed course. The mixture of the fly ash, the fly ash and the steel slag is used as the raw material of the cushion layer, so that the fly ash and the steel slag do not need to be deeply processed, and the cost of manufacturing raw materials is saved; and the fly ash and the steel slag are granular products, so that construction personnel can conveniently lay the steel slag in a large area by using a laying machine, the laying efficiency is improved, and the quality of a pavement structure is improved.
Description
Technical Field
The application relates to the field of road construction, in particular to a resource recycling durable type full-penetration asphalt pavement structure.
Background
The fly ash is the main solid waste discharged by coal-fired power plants, and the fly ash is one of the industrial waste residues with larger discharge capacity in China at present, and the discharge amount of the fly ash in the coal-fired power plants is increased year by year along with the development of the power industry. The steel slag is a byproduct in the steel-making process, and the production amount of the steel slag in China is rapidly increased along with the rapid development of the steel industry. Therefore, the problems of treatment and resource utilization of fly ash and steel slag are more and more emphasized.
At present, the bulletin day is 2018, 11 and 13 days, and the Chinese utility model patent with the bulletin number of CN208088044U provides a durable full-permeable asphalt pavement structure for resource recycling, which comprises a fine grain type steel slag permeable asphalt mixture upper surface layer, a medium grain type steel slag permeable asphalt mixture lower surface layer, recycled aggregate permeable cement concrete or recycled aggregate skeleton pore cement stabilized macadam base layer, recycled brick stone or recycled aggregate macadam cushion layer and a roadbed which are sequentially arranged from top to bottom.
In view of the above-mentioned related art, the inventors believe that the construction waste can be recycled by using the recycled masonry or the recycled aggregate crushed stone as the cushion layer, but the construction waste needs to be deeply processed by both the recycled masonry or the recycled aggregate crushed stone, which increases the cost of laying the cushion layer.
SUMMERY OF THE UTILITY MODEL
In order to practice thrift the cost of laying the bed course, this application provides a durable type of resource regeneration utilizes full formula bituminous paving structure that passes through.
The application provides a resource regeneration utilizes durable type full-through asphalt pavement structure adopts following technical scheme:
the utility model provides a durable type of resource regeneration utilizes bituminous paving structure that passes through entirely, includes from last pitch layer, basic unit and the soil matrix that sets gradually down, the soil matrix upper berth is equipped with the bank protection, the bank protection sets up the pitch layer with the both sides of basic unit, the basic unit includes fly ash bed course and/or fly ash slag mixing bed course.
By adopting the technical scheme, because the fly ash is a direct byproduct of the coal-fired cushion layer, the steel slag is a direct byproduct of a steel mill, and the mixture of the fly ash and the steel slag is used as a raw material of the cushion layer, the fly ash and the steel slag do not need to be deeply processed, so that the cost of manufacturing raw materials is saved; and the fly ash and the steel slag are granular products, so that construction personnel can conveniently lay the steel slag in a large area by using a laying machine, the laying efficiency is improved, and the quality of a pavement structure is improved.
Optionally, the fly ash cushion layer and the fly ash and steel slag mixed cushion layer are provided with multiple layers.
By adopting the technical scheme, the fly ash cushion layer and the fly ash steel slag mixed cushion layer are arranged in a layered mode, and the fly ash cushion layer and the fly ash steel slag mixed cushion layer are rolled in a layered mode in the rolling process, so that the compactness of the fly ash cushion layer and the fly ash steel slag mixed cushion layer can be improved, and the probability of collapse of an asphalt layer after being subjected to pressure is reduced.
Optionally, the fly ash cushion layer and the fly ash and steel slag mixed cushion layer are arranged in a staggered manner.
Through adopting above-mentioned technical scheme, the fly ash bed course is crisscross setting with fly ash slag mixing bed course for the top of basic unit is more even to the water permeability of bottom, is convenient for the infiltration of rainwater in the basic unit.
Optionally, the base layer further comprises a cement gravel layer disposed on the fly ash cushion layer or the fly ash and steel slag mixed cushion layer.
By adopting the technical scheme, the cement gravel layer is laid after the coal ash cushion layer and/or the coal ash steel slag mixed cushion layer are/is laid, under the protection effect of the cement gravel layer, the coal ash cushion layer and the coal ash steel slag mixed cushion layer are not easy to generate a muddy phenomenon when construction is carried out in rainwater weather, and the coal ash cushion layer and the coal ash steel slag mixed cushion layer are not easy to generate a dust raising phenomenon when strong wind weather is met, so that the surrounding environment of a construction site is protected.
Optionally, be provided with the drainage subassembly that is used for the drainage on the bank protection.
By adopting the technical scheme, when the water content in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer reaches a saturated state, water in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer can be discharged out of the pavement structure through the water discharging assembly so as to maintain the water permeability of the pavement structure.
Optionally, the drainage component includes filtering gravel and permeable geotextile, one end of the filtering gravel penetrates through the fly ash cushion layer or the fly ash and steel slag mixed cushion layer, the other end of the filtering gravel penetrates through the slope protection and then extends out of the outer side of the slope protection, and the permeable geotextile wraps the filtering gravel.
By adopting the technical scheme, when the water content in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer reaches a saturated state, the water separated out from the fly ash cushion layer or the fly ash and steel slag mixed cushion layer can be discharged to the outer side of the slope protection through the filtering sand stone so as to maintain the water permeability of a pavement structure; and the fly ash and steel slag are blocked by the filtering sand stone, so that the water and soil loss caused by rain wash is reduced, the fly ash cushion layer or the fly ash and steel slag mixed cushion layer is protected, and the probability of road surface collapse is reduced.
Optionally, the drainage assembly includes a drainage pipe, one end of the drainage pipe is arranged in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer in a penetrating manner, and the other end of the drainage pipe passes through the slope protection and then extends out of the outer side of the slope protection.
By adopting the technical scheme, when the water content in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer reaches a saturated state, the water content precipitated in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer can be discharged to the outer side of the slope protection through the drain pipe so as to maintain the water permeability of a pavement structure.
Optionally, the drainage component further comprises filtering sand and a water-permeable geotextile, wherein the filtering sand is filled in the drainage pipe, and the water-permeable geotextile is wrapped outside the filtering sand.
By adopting the technical scheme, when the water separated out from the fly ash cushion layer or the fly ash and steel slag mixed cushion layer is discharged by using the drain pipe, the fly ash and the steel slag are blocked by filtering the sand and stone, so that the water and soil loss caused by rain wash is reduced, the fly ash cushion layer or the fly ash and steel slag mixed cushion layer is protected, and the probability of road surface collapse is reduced; when the fly ash and the steel slag block the filtering sand stone, the filtering sand stone can be taken out from the drain pipe for replacement, and the difficulty of later maintenance of the pavement structure is reduced.
Optionally, the soil foundation is provided with a road arch in the middle of the road in the width direction.
Through adopting above-mentioned technical scheme, when rainwater weather, the water that gets into in fly ash bed course or the mixed bed course of fly ash slag flows towards both sides under the effect of gravity, and then the rainwater of being convenient for discharges to the outside of bank protection through drainage component.
Optionally, waterproof geotextile is laid on the soil base.
By adopting the technical scheme, when the water content in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer reaches a saturated state, rainwater is not easy to soak into the soil foundation, the probability of excessive water absorption of the soil foundation is reduced, and the stability of a road is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the fly ash cushion layer or the fly ash and steel slag mixed cushion layer, the fly ash and the steel slag do not need to be deeply processed, so that the cost of manufacturing raw materials is saved; and the fly ash and the steel slag are granular products, so that construction personnel can conveniently lay the steel slag in a large area by using a laying machine, the laying efficiency is improved, and the quality of a pavement structure is improved.
2. Through the arrangement of the drainage assembly, when the water content in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer reaches a saturated state, water in the fly ash cushion layer or the fly ash and steel slag mixed cushion layer can be drained out of the pavement structure through the drainage assembly, so that the water permeability of the pavement structure is maintained.
3. Through the setting of way arch, when rainwater weather, the water that gets into in fly ash bed course or the mixed bed course of fly ash slag flows towards both sides under the effect of gravity, and then the rainwater of being convenient for discharges to the outside of bank protection through drainage component.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic view of the overall structure of embodiment 2 of the present application;
fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Description of reference numerals: 100. soil foundation; 110. a road arch; 200. a base layer; 210. a coal ash cushion layer; 220. a fly ash and steel slag mixed cushion layer; 230. a cement crushed stone layer; 300. an asphalt layer; 310. a lower layer of the medium-grain steel slag permeable asphalt mixture; 320. a fine grain type steel slag permeable asphalt mixture upper surface layer; 400. slope protection; 500. a drainage assembly; 510. filtering the sandstone; 520. water-permeable geotextile; 530. a drain pipe; 600. waterproof geotextile.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
Example 1:
the embodiment of the application provides a durable full-permeable asphalt pavement structure for resource recycling. Referring to fig. 1, the resource recycling durable type full-permeable asphalt pavement structure includes a soil base 100, a base layer 200, and an asphalt layer 300, which are sequentially disposed from bottom to top. Both ends of width direction all have laid bank protection 400 on soil matrix 100, and the both ends of basic unit 200 and pitch layer 300 width direction respectively with the inboard butt of two bank protections 400. The base layer 200 comprises a fly ash cushion layer 210, a fly ash and steel slag mixed cushion layer 220, a fly ash cushion layer 210, a fly ash and steel slag mixed cushion layer 220 and a cement gravel layer 230 which are sequentially arranged from bottom to top.
As the fly ash is a direct byproduct of the coal-fired cushion layer and the steel slag is a direct byproduct of a steel mill, the mixture of the fly ash and the steel slag is used as a raw material of the cushion layer, deep processing of the fly ash and the steel slag is not needed, and the cost of manufacturing raw materials is saved. And the fly ash and the steel slag are granular products, so that construction personnel can conveniently lay the steel slag in a large area by using a laying machine, the laying efficiency is improved, and the quality of a pavement structure can be improved by using laying equipment for laying.
And through setting up fly ash bed course 210 and fly ash slag mixed bed course 220 crisscross, not only can improve the degree of compactness of fly ash bed course 210 and fly ash slag mixed bed course 220 to reduce the probability that the pitch layer 300 appears collapsing after receiving the pressure, make the top of basic unit 200 to the water permeability of bottom more even moreover, be convenient for the infiltration of rainwater in basic unit 200.
The fly ash cushion layer 210 and the fly ash steel slag mixed cushion layer 220 are protected by the cement gravel layer 230 after the cement gravel layer 230 is laid, and when a construction site meets rain weather, rain water is not easy to directly drop on the fly ash cushion layer 210 and the fly ash steel slag mixed cushion layer 220, so that the fly ash cushion layer 210 and the fly ash steel slag mixed cushion layer 220 are not easy to generate a mud phenomenon. When the construction site encounters strong wind weather, the fly ash cushion layer 210 and the fly ash and steel slag mixed cushion layer 220 are not easy to generate dust raising phenomenon under the covering effect of the cement gravel layer 230, and the environment around the construction site is protected.
Referring to fig. 1, in order to facilitate good water permeability of a constructed road, asphalt also needs to have water permeability in order to allow rainwater to penetrate into a base layer 200. The asphalt layer 300 includes a medium-sized steel slag permeable asphalt mixture lower surface layer 310 and a fine-sized steel slag permeable asphalt mixture upper surface layer 320 which are sequentially arranged from bottom to top. When the rainfall weather is met, rainwater can permeate into the base layer 200 through the asphalt layer 300, so that the probability of surface water accumulation is reduced. And the upper surface layer 320 of the fine grain type steel slag permeable asphalt mixture and the lower surface layer 310 of the medium grain type steel slag permeable asphalt mixture both use the steel slag as aggregate, so that the utilization rate of solid waste materials is further improved.
Referring to fig. 1 and 2, when the rainfall is large, the base layer 200 may absorb water to a saturated state, and at this time, the moisture in the base layer 200 needs to be timely to reduce the influence of the moisture on the soil base 100. For this purpose, the revetment 400 is provided with a drainage assembly 500 for draining water from the base layer 200, and the drainage assembly 500 comprises a filtering sand 510 for filtering fly ash and a permeable geotextile 520 for wrapping the filtering sand 510. When laying the revetment 400, the filtering sand 510 is first placed at a predetermined position, and then the revetment 400 is compacted to compress the permeable soil on the revetment 400 on the permeable geotextile 520. One end of the filtering sand 510 penetrates into the fly ash cushion layer 210 at the lowest part, and the other end of the filtering sand 510 penetrates through the revetment 400 and then extends out of the revetment 400.
Because rainwater needs to pass through the base course 200 completely and can permeate into the fly ash cushion course 210 at the bottommost layer, when the water content in the fly ash cushion course 210 at the bottommost layer reaches the saturated state, the water content in the base course 200 is proved to reach the saturated state, and at the moment, the water content separated out from the fly ash cushion course 210 can be discharged to the outer side of the revetment 400 through the filtering gravels 510, so that the water permeability of the pavement structure is maintained, and the probability of water accumulation on the pavement is further reduced. And the filtering sandstone 510 blocks the fly ash, so that the water and soil loss caused by rain wash is reduced, the fly ash cushion layer 210 at the bottommost layer is protected, and the probability of road surface collapse is reduced.
Referring to fig. 1 and 2, in order to facilitate the moisture in the fly ash mat 210 to gather toward the filtering sand 510, the road arch 110 is disposed in the middle of the soil foundation 100 in the width direction of the road, so that the rainwater flows to both sides of the fly ash mat 210 at the bottom layer under the action of gravity, thereby facilitating the moisture to be discharged out of the fly ash mat 210 at the bottom layer.
Referring to fig. 1, when the rainfall time is long, the moisture content of the bottom fly ash mat 210 may be kept saturated for a long time, so that the moisture precipitated from the bottom fly ash mat 210 is easily permeated into the soil matrix 100, thereby affecting the strength of the soil matrix 100. Therefore, a layer of waterproof geotextile 600 is laid between the soil foundation 100 and the lowest fly ash cushion layer 210 so as to reduce the probability of water permeating into the soil foundation 100 from the lowest fly ash cushion layer 210.
The implementation principle of the durable full-permeable asphalt pavement structure for resource recycling in the embodiment of the application is as follows:
in the application, the fly ash cushion layer 210, the fly ash and steel slag mixed cushion layer 220, the medium-grain steel slag permeable asphalt mixture lower surface layer 310 and the fine-grain steel slag permeable asphalt mixture upper surface layer 320 all use solid waste materials as raw materials, so that the utilization rate of resources is improved, and the environment is protected. The used solid waste material is fly ash or steel slag, the fly ash is a direct byproduct of a coal-fired cushion layer, the steel slag is a direct byproduct of a steel mill, deep processing on the fly ash and the steel slag is not needed when the coal ash and the steel slag are used, and the cost of manufacturing raw materials is saved. Meanwhile, the fly ash and the steel slag are granular products, so that construction personnel can lay the materials in a large area by using a laying machine conveniently, the laying efficiency is improved, and the quality of a pavement structure can be improved by using laying equipment for laying.
When the road that finishes being under construction runs into heavy rainfall weather, the permeable pitch layer 300 of rainwater stretches into in basic unit 200, has reduced the probability of surface gathered water, and the rainwater accessible drainage component 500 in the basic unit 200 discharges outside bank protection 400, and waterproof geotechnological cloth 600 can assemble in the rainwater infiltration to soil matrix 100 in addition, has reduced the probability that soil matrix 100 rainwater disintegrates, has reduced the probability that the road sinks.
Example 2:
the embodiment of the application provides a durable full-permeable asphalt pavement structure for resource recycling, referring to fig. 3 and 4, the difference from embodiment 1 is that a base layer 200 includes a fly ash and steel slag mixed cushion layer 220, a fly ash cushion layer 210, a fly ash and steel slag mixed cushion layer 220, a fly ash cushion layer 210 and a cement gravel layer 230, which are sequentially arranged from bottom to top. The drainage assembly 500 includes a drainage pipe 530 installed on the slope protection 400 in a penetrating manner, one end of the drainage pipe 530 is installed in the bottom fly ash steel slag mixed cushion layer 220 in a penetrating manner, and the other end of the drainage pipe 530 extends out of the slope protection 400 after penetrating through the slope protection 400. The drainage assembly 500 further comprises a filtering sand 510 for filtering the fly ash and the steel slag, and a water-permeable geotextile 520 for wrapping the filtering sand 510, wherein the filtering sand 510 is arranged in the drainage pipe 530 in a penetrating manner. The drainage pipe 530 is first placed at a predetermined position when laying the slope protection 400, and then the slope protection 400 is compacted so that the permeable soil on the slope protection 400 is compressed on the outer circumferential surface of the drainage pipe 530.
The implementation principle of the durable full-permeable asphalt pavement structure for resource recycling in the embodiment of the application is substantially the same as that in embodiment 1, and the difference is as follows:
the filtering sand 510 and the permeable geotextile 520 can be drawn out from the drainage pipe 530, and after the filtering sand 510 is blocked, the filtering sand 510 and the permeable geotextile 520 are drawn out from the drainage pipe 530 and replaced by new filtering sand 510 and permeable geotextile 520, so that the revetment 400 does not need to be dismantled and rebuilt. Since the contact between the water-permeable geotextile 520 and the drainage pipe 530 is relatively poor when the filtering sand 510 and the water-permeable geotextile 520 are inserted into the drainage pipe 530, and the average particle size of the steel slag is larger than that of the fly ash, the bottom layer of the base layer 200 is provided with the fly ash-steel slag mixed cushion layer 220 to reduce the loss of water and soil.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a durable type of resource regeneration utilizes bituminous paving structure that passes through entirely, its characterized in that includes asphalt layer (300), basic unit (200) and soil matrix (100) that set gradually from last to down, soil matrix (100) upper berth is equipped with bank protection (400), bank protection (400) set up asphalt layer (300) with the both sides of basic unit (200), basic unit (200) include fly ash bed course (210) and/or fly ash slag mix bed course (220).
2. The durable full-penetration asphalt pavement structure for resource recycling according to claim 1, characterized in that: the fly ash cushion layer (210) and the fly ash and steel slag mixed cushion layer (220) are provided with a plurality of layers.
3. The resource recycling durable full-penetration asphalt pavement structure according to claim 2, characterized in that: the fly ash cushion layer (210) and the fly ash and steel slag mixed cushion layer (220) are arranged in a staggered mode.
4. The resource recycling durable full-penetration asphalt pavement structure according to any one of claims 1 to 3, characterized in that: the base layer (200) further comprises a cement gravel layer (230) arranged on the fly ash cushion layer (210) or the fly ash and steel slag mixed cushion layer (220).
5. The resource recycling durable full-penetration asphalt pavement structure according to any one of claims 1 to 3, characterized in that: the revetment (400) is provided with a drainage component (500) for drainage.
6. The resource recycling durable full-penetration asphalt pavement structure according to claim 5, characterized in that: the drainage assembly (500) comprises filtering sand stones (510) and water-permeable geotextile (520), one ends of the filtering sand stones (510) penetrate through the fly ash cushion layer (210) or the fly ash and steel slag mixed cushion layer (220), the other ends of the filtering sand stones (510) penetrate through the slope protection (400) and then extend out of the outer side of the slope protection (400), and the water-permeable geotextile (520) wraps the filtering sand stones (510).
7. The resource recycling durable full-penetration asphalt pavement structure according to claim 5, characterized in that: the drainage assembly (500) comprises a drainage pipe (530), one end of the drainage pipe (530) penetrates through the fly ash cushion (210) or the fly ash and steel slag mixed cushion (220), and the other end of the drainage pipe (530) penetrates through the protection slope (400) and then extends out of the protection slope (400).
8. The resource recycling durable full-penetration asphalt pavement structure according to claim 6, characterized in that: the drainage assembly (500) further comprises a filtering sand (510) and a water-permeable geotextile (520), the filtering sand (510) is filled in the drainage pipe (530), and the water-permeable geotextile (520) is wrapped outside the filtering sand (510).
9. The resource recycling durable full-penetration asphalt pavement structure according to any one of claims 1 to 3, characterized in that: the soil foundation (100) is provided with a road arch (110) in the middle of the road in the width direction.
10. The resource recycling durable full-penetration asphalt pavement structure according to any one of claims 1 to 3, characterized in that: and waterproof geotextile (600) is paved on the soil foundation (100).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121197983.4U CN215482016U (en) | 2021-05-31 | 2021-05-31 | Durable type full-transparent asphalt pavement structure for resource recycling |
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| CN202121197983.4U CN215482016U (en) | 2021-05-31 | 2021-05-31 | Durable type full-transparent asphalt pavement structure for resource recycling |
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| CN215482016U true CN215482016U (en) | 2022-01-11 |
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| CN202121197983.4U Active CN215482016U (en) | 2021-05-31 | 2021-05-31 | Durable type full-transparent asphalt pavement structure for resource recycling |
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