CN217810292U - Drainage, antiskid highway - Google Patents
Drainage, antiskid highway Download PDFInfo
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- CN217810292U CN217810292U CN202221158759.9U CN202221158759U CN217810292U CN 217810292 U CN217810292 U CN 217810292U CN 202221158759 U CN202221158759 U CN 202221158759U CN 217810292 U CN217810292 U CN 217810292U
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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
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Abstract
The utility model belongs to the technical field of highway construction, concretely relates to drainage, cling compound highway. The utility model discloses a drainage, antiskid highway is laid on the roadbed, which comprises a drainage pavement structure and edge drainage structures arranged at the two sides of the drainage pavement structure; the drainage pavement structure sequentially comprises a cement stabilized macadam base layer, a water sealing layer, a large-pore drainage layer and a surface antiskid drainage layer from bottom to top; the edge part drainage structure comprises a single-grain-diameter gravel road shoulder, a curb, a drainage pipe and a soil slope; the construction width of the surface antiskid drainage layer is smaller than that of the large-pore drainage layer. The utility model discloses a driving safety accident that drainage, cling compound highway on the one hand can reduce surface gathered water, reduce the wet and slippery road surface and cause in road surface, and on the other hand can avoid rainwater or snow water to invade the road bed, causes destruction to the semi-rigid basic unit of highway, can prolong bituminous paving's life, improves economy, social.
Description
Technical Field
The utility model belongs to the technical field of road construction, in particular to drainage, cling compound highway.
Background
Traffic is the life line of economic development, and road traffic occupies an important position in the field of transportation, and plays an important role in balancing regional resources and stimulating economic development. The open-graded asphalt mixture is produced in order to solve the problems of poor drainage in rainy and snowy days, damage to a roadbed caused by rainwater infiltration, easy driving safety caused by wet and slippery road surface and the like.
Although the pavement paved by the graded asphalt mixture in the prior art can play the roles of drainage and skid resistance, the method still has the following defects: because the porosity and permeability after compaction are high, gas and moisture can easily enter the asphalt mixture during use, and the asphalt is aged or peeled from the aggregate surface. In order to quickly discharge water entering a road surface paved with the open-graded asphalt mixture to the road surface and reduce the soaking damage of the water to the asphalt mixture, the roadside drainage structure design is particularly important, and the excellent roadside drainage structure design can help or promote the road surface to realize quick drainage and prolong the service life of the road surface, so that the development of a quick-drainage, anti-skid and long-service-life road asphalt road surface is still of great significance for promoting the development of the road construction industry.
Disclosure of Invention
To the highway drainage that exists more than, antiskid and the short problem of life, the utility model provides a drainage, antiskid highway can effectively realize the quick drainage on road surface and promote driving safety nature and travelling comfort.
In order to realize the purpose, the utility model adopts the following technical scheme:
a drainage and anti-skid highway is laid on a roadbed and comprises a drainage pavement structure and edge drainage structures arranged on two sides of the drainage pavement structure;
the drainage pavement structure sequentially comprises a cement stabilized macadam base layer, a water sealing layer, a large-pore drainage layer and a surface antiskid drainage layer from bottom to top;
preferably, the side part drainage structure comprises a road shoulder, a curb stone, a drainage pipe and a soil slope, wherein the road shoulder is formed by filling single-grain-diameter broken stones and is divided into a lower road shoulder and an upper road shoulder according to the filling sequence, and the lower road shoulder is arranged on the roadbed at two sides of the drainage road surface structure; the top surface of the anti-skid drainage layer is lower than the top surface of the surface anti-skid drainage layer, and is provided with kerbs; soil side slopes are filled outside the kerbstones and the lower road shoulders; a single-grain-diameter broken stone is filled between the kerbstone and the surface antiskid drainage layer to form an upper road shoulder, and the height of the upper road shoulder is flush with the upper surface of the surface antiskid drainage layer; the drainage pipe is transversely arranged on the roadbed at two sides of the highway, one end of the drainage pipe extends into the bottom of the lower road shoulder by 2-8cm, and the other end of the drainage pipe is arranged outside the soil slope.
Preferably, the construction widths of the cement stabilized macadam base layer, the water sealing layer and the large-pore drainage layer are the same, and the construction width of the surface antiskid drainage layer is 8-20cm smaller than that of the large-pore drainage layer. Preferably, in the non-ultrahigh section of the road, the construction width of the surface anti-skid drainage layer is 10-20cm smaller than that of the large-pore drainage layer, and the construction width of the surface anti-skid drainage layer is 5-10cm smaller than that of the large-pore drainage layer on the left side and the right side of the road; still further preferably, in the non-ultrahigh section of the road, the construction width of the surface anti-skid drainage layer is 14-18cm smaller than that of the large-pore drainage layer, and the construction width of the surface anti-skid drainage layer is 7-9cm smaller than that of the large-pore drainage layer on the left side and the right side of the road.
The curve of the highway is over-height, which means that the outer side of a lane is raised or the inner side of the lane is lowered in a flat curve section of the road, so that the top surface of the lane forms an engineering arrangement with an inward single-sided inclined cross section.
Further preferably, in the ultrahigh section of the bend of the road, the construction width of the surface antiskid drainage layer is 8-15cm smaller than that of the large-pore drainage layer only on one side of the downhill foot of the ultrahigh section of the bend; still further preferably, in the ultrahigh section of the road in the curve, the construction width of the surface antiskid drainage layer is 9-12cm smaller than that of the large-pore drainage layer only on the side of the downhill foot of the ultrahigh section of the curve.
When a large amount of water is accumulated on the road surface in a short time, the speed of the accumulated water permeating into the large-pore drainage layer from the surface antiskid drainage layer is low due to the fact that the water amount is large, and the road surface is prone to being accumulated too much for a long time, so that inconvenience in driving is caused. With the width design of surperficial antiskid drainage blanket for being less than the width of large pore drainage blanket, can in time discharge the road surface fast through limit portion drainage structures with way surface ponding, reduce driving accident risk.
Preferably, the thickness of the cement-stabilized macadam foundation is 30-54cm, and the compactness is 97-98%.
Preferably, the thickness of the water sealing layer is 0.8-1.4cm, and the water sealing layer comprises liquid asphalt and crushed stone; further preferably, the crushed stone has a particle size of 5-10mm.
Preferably, the thickness of the macroporous drainage layer is 5-8cm, the porosity is 14-23%, a macroporous drainage type asphalt mixture is adopted, limestone is selected as aggregate, SBS modified asphalt is selected as asphalt, the using amount of the asphalt is 3.3%, and the grading range is as follows:
medium particle formula a: the passing rate range of the standard sieve pore of 26.5mm is 100 percent; the passing rate range of standard sieve holes with 19mm is 90-100%; the 16mm passing rate range of the standard sieve pore is 55-75 percent; the passing rate range of a standard sieve pore of 9.5mm is 22-50 percent; the passing rate range of the standard sieve pore of 4.75mm is 8-30%; the passing rate range of the standard sieve pore of 2.36mm is 6-20%; the passing rate range of the standard sieve pore of 0.3mm is 2-8 percent; the passing rate range of the standard sieve pore of 0.075mm is 1-5%;
or a mesoparticle formula B: the passing rate range of a standard sieve pore of 19mm is 100 percent; the 16mm passing rate range of the standard sieve pore is 90-100%; the passing rate range of a standard sieve pore of 9.5mm is 30-55 percent; the passing rate range of a standard sieve pore with 4.75mm is 7-26%; the passing rate range of a standard sieve pore of 2.36mm is 5-18 percent; the passing rate range of standard sieve pores of 0.3mm is 3-10%; the passing rate of the standard sieve pore of 0.075mm is 1-4%.
Preferably, the thickness of the surface anti-skid drainage layer is 4-5cm, the porosity is 11-18%, an asphalt mixture with drainage and surface anti-skid functions is adopted, basalt is selected as aggregate, lime powder is selected as filler, SBS modified asphalt is selected, the designed asphalt consumption is 3.7%, and the grading range is as follows:
fine particle formula a: the 16mm passing rate range of the standard sieve pore is 100 percent; the passing rate range of the standard sieve pore of 13.2mm is 90-100%; the passing rate range of a standard sieve pore of 9.5mm is 35-65%; the passing rate range of the standard sieve pore of 4.75mm is 9-28%; the passing rate range of a standard sieve pore of 2.36mm is 7-18 percent; the passing rate range of the standard sieve pore of 0.3mm is 4-10%; the passing rate range of standard sieve pores of 0.075mm is 2-5%;
or fine particle formula B: the passing rate range of a standard sieve pore of 13.2mm is 100 percent; the passing rate range of a standard sieve pore of 9.5mm is 85-100%; the passing rate range of a standard sieve pore with 4.75mm is 10-26%; the passing rate range of the standard sieve pore of 2.36mm is 6-16%; the passing rate range of standard sieve holes with 0.3mm is 5-11%; the passing rate of the standard sieve pore of 0.075mm is 3-5%.
Preferably, the cement mortar has a thickness of 2-4cm, and mainly functions to separate water from the roadbed and prevent the roadbed from being soaked during drainage.
Preferably, the particle size of the single-particle-size crushed stone is 5-10cm or 10-15cm.
Preferably, the end of the drainage pipe extending into the shoulder is wrapped by high-permeability geotextile.
Preferably, the water discharge pipe is a PVC pipe, the pipe diameter is 6-10cm, the transverse gradient is 3-8%, and the distance between two parallel water discharge pipes is 5-10m along the extension direction of the road.
Preferably, the outer side of the lower road shoulder and the top surface of the lower road shoulder outside the curb are both paved with reversed filter geotextile (1101).
Preferably, the side surfaces of the cement-stabilized macadam foundation layer and the water seal layer are coated with emulsified asphalt for water prevention.
The utility model provides a one or more technical scheme has following technological effect at least:
(1) The utility model adopts the drainage type asphalt pavement structure with double layers of large pores, and matches with the single-grain-diameter gravel road shoulder and the transverse drainage facility at the edge part, so as to effectively discharge accumulated water on the pavement in time, improve the anti-skid performance of the road surface in rainy days, and ensure the driving safety to the utmost extent;
(2) The utility model provides a surface antiskid drainage blanket width is minimum, and when a large amount of rainwater did not reach when discharging from surface antiskid drainage blanket, can follow in the curb that surface antiskid drainage blanket's border department flowed in the road shoulder that single footpath rubble constitutes, collect the quick discharge road surface in the drain pipe through the road shoulder, can realize the quick discharge of a large amount of rainwater, thereby avoid the rainwater to gather and influence driving safety.
Drawings
Fig. 1 is a schematic cross-sectional view of a non-super high section of the drainage and anti-skid road of the present invention.
Fig. 2 is a schematic cross-sectional view of an ultra-high section of the drainage and anti-skid road of the present invention.
Wherein, 1, roadbed; 2. cement stabilized macadam base course; 3. sealing a water layer; 4. a macroporous drainage layer; 5. a surface anti-skid drainage layer; 6. emulsified asphalt; 7. cement mortar; 8. a drain pipe; 901. a lower shoulder; 902. a road shoulder is arranged; 10. a curb; 1101. reversely filtering the geotextile; 12. a soil slope.
Detailed Description
A drainage and skid resistant road will be further described with reference to the accompanying figure 1 of the specification in a specific embodiment.
Examples
As shown in the attached figure 1, the utility model provides a drainage, antiskid highway.
The drainage system comprises a drainage pavement structure and edge drainage structures arranged on two sides of the drainage pavement structure;
the drainage pavement structure sequentially comprises a cement stabilized macadam base layer 2, a water sealing layer 3, a large-pore drainage layer 4 and a surface antiskid drainage layer 5 from bottom to top, wherein the cement stabilized macadam base layer 2 is laid on a roadbed 1, the laying thickness of the cement stabilized macadam base layer is 36cm, and the compaction degree is 97%.
The construction widths of the cement stabilized macadam base layer 2, the water sealing layer 3 and the large-pore water drainage layer 4 are the same, and the construction width of the surface antiskid water drainage layer 5 is 16cm smaller than that of the large-pore water drainage layer 4.
The water sealing layer 3 is 1.0cm thick and comprises 70# matrix asphalt and crushed stone with the particle size of 5-10mm.
The thickness of the large-pore drainage layer 4 is 6cm, the porosity is 20%, the large-pore drainage type asphalt macadam mixture is adopted, limestone is selected for aggregate, SBS modified asphalt is selected for use, the designed asphalt using amount is 3.3%, and the gradation is shown in the following table:
TABLE 1 gradation of macroporous drainage layers
The thickness of the surface anti-skid drainage layer is 5cm, the asphalt macadam mixture with drainage and anti-skid functions is adopted, the aggregate is basalt, the filler is lime powder, the SBS modified asphalt is adopted, the designed asphalt consumption is 3.7%, the void ratio is 15%, and the gradation is shown in the following table:
TABLE 2 gradation of surface anti-skid drainage layer
The construction width of the antiskid drainage layer 5 on the surface of the non-ultrahigh section of the highway is 16cm smaller than that of the large-pore drainage layer 4, and the construction width of the antiskid drainage layer is 8cm smaller on the left side and the right side respectively; the construction width of the antiskid drainage layer 5 on the surface of the ultrahigh section of the curved road of the road is 10cm smaller than that of the large-pore drainage layer 4, and the construction width is 10cm smaller than that of the downhill foot side of the ultrahigh section of the curved road of the road.
The side part drainage structure comprises a road shoulder, a curb 10, a drainage pipe 8 and a soil slope 12, wherein the road shoulder is divided into a lower road shoulder 901 and an upper road shoulder 902 according to the paving sequence, and the road shoulder is formed by filling single-grain-diameter crushed stones with the grain diameter of 10-15 cm; the lower road shoulder 901 is arranged on the roadbed 1 at two sides of the drainage road surface structure; cement mortar 7 with the thickness of 2cm is paved between the lower shoulder 901 and the roadbed 1; the top surface of the lower shoulder 901 is lower than the top surface of the surface antiskid drainage layer 5, and the kerbstone 10 is arranged on the top surface of the lower shoulder 901; the outer sides of the kerbstone 10 and the lower road shoulder 901 are filled with a soil slope 12; the drain pipe 8 is arranged above the cement mortar 7, one end of the drain pipe 8 is wrapped by high-permeability geotextile and then is embedded into the bottom of the lower road shoulder 901, the embedding length is 5cm, the other end of the drain pipe 8 is arranged outside the soil slope 12, and one end, positioned outside the soil slope 12, of the drain pipe 8 is lower than one end, embedded into the lower road shoulder 901, of the drain pipe 8; and single-grain-diameter crushed stones with the grain diameter of 10-15cm are filled between the kerbstone 10 and the surface antiskid drainage layer 5 to form an upper shoulder 902, and the filling height of the upper shoulder 902 is flush with the upper surface of the surface antiskid drainage layer 5.
The cross section of the lower road shoulder 901 of the embodiment is rectangular, so that the design is convenient for single-particle-size gravel formwork construction and the arrangement of the kerbstone 10.
The drain pipe 8 is a PVC pipe with the pipe diameter of 8cm and the transverse gradient of 5 percent; along the extension direction of the road, the interval between two adjacent drain pipes 8 is 5m.
And a filter returning geotextile 1101 is laid between the lower road shoulder 901 and the soil slope 12.
And (3) brushing emulsified asphalt 6 on the side surface of the cement stabilized macadam base for water prevention.
When meeting rainy or snowy weather, rainwater and snow on the surface of the road can permeate into the surface antiskid drainage layer and the large-pore drainage layer, then single-particle-diameter crushed stones at the road shoulder of the edge drainage structure are collected to the end part of the drainage pipe at the bottom of the lower road shoulder, and finally the crushed stones are drained to the outer side of the road through the drainage pipe. The utility model discloses a highway design can reduce surface gathered water on the one hand, reduce the driving safety accident that the road surface is wet and slippery to cause, and on the other hand can avoid rainwater or snow water to dip the road bed, causes destruction to the semi-rigid basic unit of highway, can prolong bituminous paving's life, improves economy, social.
Claims (10)
1. A drainage and antiskid highway is characterized by being laid on a roadbed (1) and comprising a drainage pavement structure and edge drainage structures arranged on two sides of the drainage pavement structure;
the drainage pavement structure is laid on a roadbed (1) and sequentially comprises a cement stabilized macadam base layer (2), a water sealing layer (3), a large-pore drainage layer (4) and a surface antiskid drainage layer (5) from bottom to top;
the edge drainage structure comprises a road shoulder, a curb stone (10), a drainage pipe (8) and a soil slope (12); the road shoulder is formed by filling single-grain-diameter gravels and is divided into a lower road shoulder (901) and an upper road shoulder (902) according to the filling sequence; the lower road shoulder (901) is arranged on the roadbed (1), the top surface of the lower road shoulder (901) is lower than the top surface of the surface anti-sliding drainage layer (5), the top surface of the lower road shoulder (901) is provided with kerbs (10), and cement mortar (7) is laid between the lower road shoulder (901) and the roadbed (1); soil side slopes (12) are filled outside the kerbstones (10) and the lower road shoulders (901); a single-grain-diameter gravel is filled between the kerbstone (10) and the surface antiskid drainage layer (5) to form an upper road shoulder (902), and the height of the upper road shoulder (902) is flush with the upper surface of the surface antiskid drainage layer (5); the drainage pipe (8) is arranged on the roadbed (1), one end of the drainage pipe (8) is embedded into the bottom of the lower road shoulder (901), the other end of the drainage pipe is arranged outside the soil slope (12), and the length of the drainage pipe (8) embedded into the lower road shoulder (901) is 2-8cm.
2. A draining and anti-skid road according to claim 1, characterized in that the cement stabilized macadam foundation (2), the water seal layer (3) and the large pore drainage layer (4) have the same construction width, and the construction width of the surface anti-skid drainage layer (5) is 8-20cm smaller than that of the large pore drainage layer (4).
3. A water-draining and skid-resisting road according to claim 2, wherein in the non-super high section of the road, the construction width of the surface skid-resisting water-draining layer (5) is 10-20cm smaller than that of the large-pore water-draining layer (4), and is 5-10cm smaller on the left side and the right side of the road respectively; in the ultrahigh section of the bend of the road, the construction width of the surface antiskid drainage layer (5) is 8-15cm smaller than that of the large-pore drainage layer (4) on the side of the downhill foot of the ultrahigh section of the bend.
4. A draining and anti-skid road according to claim 1, characterized in that said cement stabilized macadam foundation (2) has a thickness of 30-54cm and a degree of compaction of 97-98%.
5. A draining and anti-skid road according to claim 1, characterised in that said water-blocking layer (3) has a thickness of 0.8-1.4cm.
6. A draining and anti-skid road according to claim 1, characterized in that the said macroporous drainage layer (4) has a thickness of 5-8cm and a porosity of 14-23%.
7. A draining and anti-skid road according to claim 1, characterized in that said surface anti-skid drainage layer (5) has a thickness of 4-5cm and a void ratio of 11-18%.
8. A draining and anti-skid road according to claim 1, wherein said crushed stones of single size have a size of 5-10cm or 10-15cm.
9. A draining and anti-skid road according to claim 1, wherein the end of the draining pipe (8) embedded in the shoulder is externally wrapped with high-permeability geotextile; the drainage pipe (8) is a PVC pipe, the pipe diameter is 6-10cm, the transverse gradient is 3-8%, and the interval between two parallel drainage pipes is 5-10m along the extension direction of the road.
10. A draining and anti-skid road according to claim 1, characterized in that said cement mortar (7) has a thickness of 2-4cm; a reverse filtering geotextile (1101) is laid between the lower road shoulder (901) and the soil slope (12); and emulsified asphalt (6) is coated on the side surfaces of the cement stabilized macadam foundation layer (2) and the water seal layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221158759.9U CN217810292U (en) | 2022-05-13 | 2022-05-13 | Drainage, antiskid highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221158759.9U CN217810292U (en) | 2022-05-13 | 2022-05-13 | Drainage, antiskid highway |
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| Publication Number | Publication Date |
|---|---|
| CN217810292U true CN217810292U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221158759.9U Active CN217810292U (en) | 2022-05-13 | 2022-05-13 | Drainage, antiskid highway |
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| CN (1) | CN217810292U (en) |
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- 2022-05-13 CN CN202221158759.9U patent/CN217810292U/en active Active
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