CN103215875A - Differential-settlement-based anti-fatigue asphalt pavement - Google Patents
Differential-settlement-based anti-fatigue asphalt pavement Download PDFInfo
- Publication number
- CN103215875A CN103215875A CN2013101391830A CN201310139183A CN103215875A CN 103215875 A CN103215875 A CN 103215875A CN 2013101391830 A CN2013101391830 A CN 2013101391830A CN 201310139183 A CN201310139183 A CN 201310139183A CN 103215875 A CN103215875 A CN 103215875A
- Authority
- CN
- China
- Prior art keywords
- layer
- antifatigue
- surface layer
- rubble
- adopts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention provides a differential-settlement-based anti-fatigue asphalt pavement which is characterized by comprising an asphalt surface layer, an anti-fatigue layer, a graded broken stone base layer and a cement stabilized macadam subbase layer, wherein the asphalt surface layer comprises a surface layer, a middle surface layer and a lower surface layer; the surface layer is arranged on the upper surface of the asphalt pavement; the middle surface layer is paved under the surface layer; the lower surface layer is paved under the middle surface layer; layer sticking oil is sprayed among the surface layer, the middle surface layer and the lower surface layer; the anti-fatigue layer is paved under the lower surface layer; the layer sticking oil is sprayed between the anti-fatigue layer and the lower surface layer; the base layer is paved under the anti-fatigue layer; layer permeating oil is sprayed between the base layer and the anti-fatigue layer; the subbase layer is paved under the base layer; and the subbase layer is laid on a road bed of the ground.
Description
Technical field
The present invention relates to a kind of asphalt highway structure, particularly a kind of antifatigue bituminous highway road surface that is applicable to differential settlement.
Background technology
In order to satisfy the long-term instructions for use on road surface, the antifatigue asphalt pavement structure obtains promoting in worldwide.Full depth asphalt pavement and the High Strength Asphalt Concrete making can be increased fatigue life on road surface on graded broken stone is thought by U.S. bitumen association, and the destruction that the road surface is possible is limited in the top layer of flexible pavement.Generally believe that now the continuous reinforcement concrete adds the typical structure that bituminous concrete is permanent flexible pavement.
Since the eighties in 20th century, the development of highway in China cause is very rapid.In the highway of China especially expressway construction, the requirement of roadbed is also being improved constantly.Roadbed should guarantee closely knit, even, stable, but because the uncertainty of factors such as geological conditions, weather hydrologic condition and construction technology, roadbed is very possible generation sedimentation (comprising uniform settlement and differential settlement) in the highway design service life.The acting in conjunction of subsidiary stress that differential settlement produces in road structure and higher traffic loading causes serious road structure such as crack, depression, frost boiling to destroy easily.
The pavement design standard of China (for example " asphalt highway design specifications " (JTG D50-2006)) is only considered the influence of traffic loading mostly, considers less to the influence of settlement of subgrade.Also rare about research based on the antifatigue asphalt pavement structure of differential settlement.
Summary of the invention
The present invention be directed to the disappearance that above-mentioned prior art field exists, a kind of antifatigue flexible pavement typical structure that is applicable to the differential settlement area is provided, the problem of road surface structural deterioration when differential settlement occurring with the roadbed that solves the antifatigue flexible pavement reaches in design service life the purpose that recurring structure not destroys.
The invention provides following technical scheme:
A kind of antifatigue flexible pavement based on differential settlement, it is characterized in that comprising asphalt surface course, antifatigue, basic unit and subbase, described asphalt surface course comprises surface course, middle surface layer reaches surface layer down, described surface level is in the upper surface of described flexible pavement, topping laying is in described surface course below in described, described surface layer down is layed in described middle surface layer below, described surface course, it is oily to spray glutinous layer under the intermediate layer reaches between the surface layer, described antifatigue layer is layed in described surface layer down below, spray glutinous layer oil between antifatigue layer and the following surface layer, described basic unit is layed in described antifatigue layer below, spray priming oil between basic unit and the antifatigue layer, described subbase is layed in described basic unit below, described subbase is layed on the roadbed on ground, described surface course adopts the SMA-13 layer, surface layer adopts the Superpave-20 layer in described, described surface layer down adopts the Superpave-25 layer, described antifatigue layer adopts the Superpave-12.5 layer, and basic unit adopts the graded broken stone layer, and subbase adopts the cement stabilized macadam layer, the maximum particle diameter of the rubble in the described cement stabilized macadam layer is not more than 31.5mm, and the employing framework dense structure, cement employing label is 42.5 portland cement or Portland cement, requires the initial setting time greater than 3h, final setting time is greater than 6h, and cement consumption is 4%～4.5%.
Further, the surface course of described asphalt surface course is the SMA-13 of 4cm, and wherein SMA-13 is a stone mastic asphalt, and nominal maximum aggregate size is 13mm, gap grading; The middle surface layer of described asphalt surface course adopts the Superpave-20 material of 6cm, and nominal maximum aggregate size is 20mm; The following surface layer of described asphalt surface course is the Superpave-25 material of 8cm, and nominal maximum aggregate size is 25mm.
Further, the antifatigue layer between surface layer and the basic unit, the bituminous mixture of employing 4～6cm is the Superpave-12.5 material, and nominal maximum aggregate size is 12.5mm, and the control bitumen content is optimum content+0.2%.
Further, described basic unit adopts the thick graded broken stone of 20cm, and described subbase is the thick cement stabilized macadam of 20～30cm, and wherein the modulus of elasticity of cement stabilized macadam is controlled between 1500MPa～2000MPa.
Further, the rubble grating of the cement stabilized macadam layer of described subbase is: the square hole screen that is of a size of 31.5mm, the rubble percent of pass is 100%, be of a size of the square hole screen of 19mm, the rubble percent of pass is 80.7%, be of a size of the square hole screen of 9.5mm, the rubble percent of pass is 52.6%, is of a size of the square hole screen of 4.75mm, and the rubble percent of pass is 30.2%, be of a size of the square hole screen of 2.36mm, the rubble percent of pass is 19.6%, is of a size of the square hole screen of 0.6mm, and the rubble percent of pass is 11.4%, be of a size of the square hole screen of 0.075mm, the rubble percent of pass is 2.8%.
The invention has the beneficial effects as follows: the present invention is a kind of road structure that is applicable to easy generation differential settlement area (for example soft clay area), the influence of the subsidiary stress that the differential settlement road pavement of can effectively alleviating high-modulus cement stabilized macadam layer causes reduces the generation of pavement crack.Portland cement or Portland cement can guarantee stablizing effect, adopt the higher cement of strength grade can suitably improve the intensity and the modulus of this layer, and selecting for use of framework dense structure makes this layer have better mechanical property.The graded broken stone layer can play the effect of good stress absorption, further reduces the reflection crack of flexible pavement.The flexible antifatigue layer of Superpave-12.5 has certain shear behavior, and further reduces and suppress the generation of surface layer reflection crack.Asphalt surface course of the present invention design, under the prerequisite that guarantees evenness of road surface, stable, wear-resisting, antiskid, the influence of minimizing traffic load road pavement basic unit and roadbed.
Description of drawings
Be elaborated below with reference to 1 pair of antifatigue flexible pavement based on differential settlement of the present invention of accompanying drawing.
Fig. 1 is a kind of flexible pavement typical structure based on differential settlement;
Fig. 2 is the framework dense structure schematic diagram of cement stabilized macadam layer of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is done and to describe in further detail.
The present invention adopts thicker asphalt surface course, alleviates the effect of traffic load to roadbed, alleviates differential settlement.Road structure among the present invention, the surface course of described asphalt surface course is the SMA-13 of 4cm, wherein SMA-13 is a stone mastic asphalt, nominal maximum aggregate size is 13mm, gap grading, this layer is durable, stable, closely knit, smooth, and can satisfy the requirement of heavy traffic and high-temperature stability; The middle surface layer of described asphalt surface course mainly plays anastomosis, adopts the Superpave-20 of 6cm, and Superpave-20 is the abbreviation of Superior Performing Asphalt Pavement, high performance asphalt pavement, and nominal maximum aggregate size is 20mm; The following surface layer of described asphalt surface course is the Superpave-25 of 8cm, and nominal maximum aggregate size is 25mm.Superpave during flexible pavement, takes into full account the influence of temperature road pavement in the period of service in design, requires the road surface can satisfy the high-temperature behavior requirement when the highest design temperature, does not produce excessive rut; When the minimum temperature of road surface, can satisfy the cryogenic property requirement, avoid or reduce cold cracking; At normal temperature scope inner control fatigue cracking.
Described surface layer below is the antifatigue layer, adopts the bituminous mixture of 4～6cm, is Superpave-12.5, it is the high performance asphalt pavement material, nominal maximum aggregate size is 12.5mm, and this layer adopts above-mentioned thickness and nominal maximum aggregate size to make that this layer is a flexbile base, and modulus of elasticity is little.The control bitumen content is optimum content+0.2%, makes this layer have higher shear strength and good fatigue resistance, can effectively suppress and reduce the generation of asphalt pavement reflective cracking.
The basic unit of described antifatigue layer below adopts the graded broken stone of thickness 20cm, the subbase of described basic unit below is the cement stabilized macadam of thickness 20～30cm, wherein cement stabilized macadam should have higher pressure-proof elasticity modulus, and its modulus of elasticity is controlled at 1500MPa～2000MPa.High-modulus cement stabilized macadam below adopt the graded broken stone of above-mentioned size and modulus of elasticity and cement stabilized macadam the to be used in combination compatible deformation that makes this structure can bring into play flexible graded broken stone, the ability that absorbs stress, graded broken stone layer then has the ability of alleviating differential settlement.The suitable raising of subbase cement stabilized macadam modulus of elasticity can be played the effect of homogenizing ground difference, reduces differential settlement to a certain extent.But the modulus of elasticity of cement stabilized macadam base is also unsuitable too high, and over-burden otherwise easily cause surface layer stress.
Shown in accompanying drawing 1 of the present invention, flexible pavement of the present invention is laid six layers altogether.Be respectively SMA-13 layer, Superpave-20 layer, Superpave-25 layer, Superpave-12.5 antifatigue layer, graded broken stone layer and high-modulus cement stabilized macadam layer.Wherein asphalt surface course comprises SMA-13 layer, Superpave-20 layer, Superpave-25 layer, and interlayer sprays glutinous layer oil, to connect between enhancement Layer.The antifatigue layer adopts the Superpave-12.5 layer, sprays glutinous layer oil between antifatigue layer and the following surface layer, and basic unit adopts the graded broken stone layer, sprays priming oil between basic unit and the antifatigue layer, and subbase adopts high-modulus cement stabilized macadam layer.
When laying flexible pavement of the present invention, at first lay subbase cement stabilized macadam layer, should guarantee closely knit, all even surfacings of sub-layer before laying.Be applied to high grade pavement for semi-rigid sub-base material in existing " highway road surface construction technique normalizing " and only require 7 days compressive strength after immersion of compound, and modulus of elasticity is not had specific requirement.In the present invention, the control of the factors such as cage construction type of grating, cement consumption and compound by the cement stabilized macadam layer makes this layer that higher modulus of elasticity be arranged, higher rigidity, intensity and globality, the ability of diffusion load is improved, inhomogeneous deformation that can the homogenizing roadbed.Described cement stabilized macadam layer adopts following method preparation:
1 framework types and rubble grating
At first for preventing the compound generation segregation phenomenon of big particle diameter, the present invention guarantees that the maximum particle diameter of rubble is not more than 31.5mm, and reduces the content of faller gill shape aggregate chips as far as possible; Secondly, can bring into play the stabilization of cement, make fully compacting of rubble again.This layer adopts framework dense structure, and the coarse aggregate of the existing some of this framework dense structure forms cage construction, has fine aggregate to be filled in the space between the coarse aggregate again and goes.More can reduce the amount of contraction of semi-rigid type base than other structures, increase its tear factor, improve scour resistance, have better mechanical property.
Cement stabilized macadam adopts framework dense structure as shown in Figure 2 among the present invention, and along with the increase of content of coarse aggregate in the compound, the skeleton embedding of coarse aggregate in mixture structure squeezed structure and strengthened, and compressive strength and compression rebound modulu increase.In addition, fine aggregate content also has very big influence to the cement stabilized macadam material, and is high more as fine aggregate content, and the education resistance energy of material, easy compression performance etc. are good more, and over-burden but fines meeting on the high side causes surface layer stress.Take all factors into consideration, the rubble grating of cement stabilized macadam layer is as follows among the present invention:
The cement stabilized macadam layer adopts above-mentioned rubble grating, make compressive strength, compression rebound modulu, education resistance energy and the easy compression performance of cement stabilized macadam layer of the present invention realize balancing each other, make the inhomogeneous deformation of roadbed obtain homogenizing, improve the application life on road surface greatly.
2 cement type and models
It is 42.5 portland cement or Portland cement that cement is selected the label that satisfies national standard for use, requires the initial setting time greater than 3h, and final setting time is greater than 6h, to satisfy construction requirement.The ratio of cement and rubble has very big influence to the architectural characteristic of material." asphalt highway design specifications " (JTGD50-2006) middle regulation cement consumption should be 3%～6%, and too much cement consumption causes basic unit to produce drying shrinkage and warm draw seam easily, is that surface layer produces reflection crack then.By measuring the 7 days full water compressive strength of no lateral confinement, consider the modulus of elasticity that improves cement stabilized macadam base in the reasonable scope, it is 4%～4.5% that the present invention selects cement consumption for use.
3 water content
Water content in the cement stabilized macadam has very big effect to the formation of material structure, optimum moisture content determine with overall structure characteristic such as connect between gathering materials very big influence to be arranged for uniformity, segregability and the binder of control structure.Cement stabilized macadam material among the present invention obtains maximum water holding capacity according to compaction test.
The graded broken stone layer that basic unit of the present invention adopts is non-linear, and its modulus of elasticity changes along with stress level.Because the rigidity of subbase is bigger, graded broken stone is easy to obtain higher compactness, and the subbase of higher stiffness helps that graded broken stone is nonlinear to be given full play to simultaneously, reaches stress absorption, reduces the purpose of settlement of subgrade.
Superpave-12.5 belongs to flexbile base, guarantees rich oil a little, can effectively suppress and reduce the generation of asphalt pavement reflective cracking.
Table, in, down the asphalt content of surface layer must obtain by calculating, and guarantee that it is best asphalt content.Surface course guarantees that antiskid, wear-resisting, waterproof, closely knit, stability and durability are good.Middle surface layer guarantees waterproof substantially, and high-temperature stability is good, and is closely knit.Following surface layer guarantees that high-temperature stability is good, closely knit, waterproof substantially, and the anti-water damage ability is strong.Interlayer sprays glutinous layer oil, to connect between enhancement Layer.
As seen from the above technical solution, road structure of the present invention has following feature: it is generally acknowledged that in the differential settlement area, along with the increase of basic unit's modulus, each deck stress of road surface is all linear to be increased.So in the road structure design, should reduce basic unit's modulus, preferentially adopt flexbile base.But in the present invention, require the modulus of elasticity of cement stabilized macadam base bigger, distinguish to some extent with the purpose and the road structure commonly used in the past that play the homogenizing differential settlement.
Claims (5)
1. antifatigue flexible pavement based on differential settlement, it is characterized in that comprising asphalt surface course, the antifatigue layer, basic unit and subbase, described asphalt surface course comprises surface course, middle surface layer reaches surface layer down, described surface level is in the upper surface of described flexible pavement, topping laying is in described surface course below in described, described surface layer down is layed in described middle surface layer below, described surface course, it is oily to spray glutinous layer under the intermediate layer reaches between the surface layer, described antifatigue layer is layed in described surface layer down below, spray glutinous layer oil between antifatigue layer and the following surface layer, described basic unit is layed in described antifatigue layer below, spray priming oil between basic unit and the antifatigue layer, described subbase is layed in described basic unit below, described subbase is layed on the roadbed on ground, described surface course adopts the SMA-13 layer, surface layer adopts the Superpave-20 layer in described, described surface layer down adopts the Superpave-25 layer, described antifatigue layer adopts the Superpave-12.5 layer, and basic unit adopts the graded broken stone layer, and subbase adopts the cement stabilized macadam layer, the maximum particle diameter of the rubble in the described cement stabilized macadam layer is not more than 31.5mm, and the employing framework dense structure, cement employing label is 42.5 portland cement or Portland cement, requires the initial setting time greater than 3h, final setting time is greater than 6h, and cement consumption is 4%～4.5%.
2. the antifatigue flexible pavement based on differential settlement as claimed in claim 1, the surface course that it is characterized in that described asphalt surface course is the SMA-13 of 4cm, and wherein SMA-13 is a stone mastic asphalt, and nominal maximum aggregate size is 13mm, gap grading; The middle surface layer of described asphalt surface course adopts the Superpave-20 material of 6cm, and nominal maximum aggregate size is 20mm; The following surface layer of described asphalt surface course is the Superpave-25 material of 8cm, and nominal maximum aggregate size is 25mm.
3. the antifatigue flexible pavement based on differential settlement as claimed in claim 1, it is characterized in that the antifatigue layer between basic unit and the surface layer, adopt the bituminous mixture of 4～6cm, be the Superpave-12.5 material, nominal maximum aggregate size is 12.5mm, and the control bitumen content is optimum content+0.2%.
4. the antifatigue flexible pavement based on differential settlement as claimed in claim 1, it is characterized in that described basic unit adopts the thick graded broken stone of 20cm, described subbase is the thick cement stabilized macadam of 20～30cm, and wherein the modulus of elasticity of cement stabilized macadam is controlled between 1500MPa～2000MPa.
5. the antifatigue flexible pavement based on differential settlement as claimed in claim 1, the rubble grating that it is characterized in that the cement stabilized macadam layer of described subbase is: the square hole screen that is of a size of 31.5mm, the rubble percent of pass is 100%, be of a size of the square hole screen of 19mm, the rubble percent of pass is 80.7%, be of a size of the square hole screen of 9.5mm, the rubble percent of pass is 52.6%, is of a size of the square hole screen of 4.75mm, and the rubble percent of pass is 30.2%, be of a size of the square hole screen of 2.36mm, the rubble percent of pass is 19.6%, is of a size of the square hole screen of 0.6mm, and the rubble percent of pass is 11.4%, be of a size of the square hole screen of 0.075mm, the rubble percent of pass is 2.8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139183.0A CN103215875B (en) | 2013-04-22 | 2013-04-22 | A kind of anti-fatigue asphalt pavement based on differential settlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139183.0A CN103215875B (en) | 2013-04-22 | 2013-04-22 | A kind of anti-fatigue asphalt pavement based on differential settlement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103215875A true CN103215875A (en) | 2013-07-24 |
| CN103215875B CN103215875B (en) | 2015-09-16 |
Family
ID=48814000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310139183.0A Expired - Fee Related CN103215875B (en) | 2013-04-22 | 2013-04-22 | A kind of anti-fatigue asphalt pavement based on differential settlement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103215875B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343067A (en) * | 2013-08-01 | 2015-02-11 | 上海市政工程设计研究总院（集团）有限公司 | Long-service-lifetime bituminous pavement for heavy traffic |
| CN104499398A (en) * | 2014-12-12 | 2015-04-08 | 东南大学 | Asphalt pavement structure applicable to expansion deformation of black cotton soil subgrade |
| CN104499397A (en) * | 2014-12-12 | 2015-04-08 | 东南大学 | Asphalt pavement structure based on coordination of deformation of subgrade and pavement |
| CN104762858A (en) * | 2015-03-16 | 2015-07-08 | 夏旻淑 | Asphalt concrete construction method for soft soil matrix pavement |
| CN106592370A (en) * | 2016-12-05 | 2017-04-26 | 扬州大学 | Drainability bituminous pavement |
| CN108829939A (en) * | 2018-05-24 | 2018-11-16 | 东南大学 | A kind of theory and method for numerical simulation for examining the skeleton stability that gathers materials |
| CN112376349A (en) * | 2020-11-24 | 2021-02-19 | 东南大学 | Long-life flexible base asphalt pavement structure |
| CN113774749A (en) * | 2021-10-26 | 2021-12-10 | 中铁四局集团第一工程有限公司 | Pavement structure construction method of dynamic square of automobile test field |
| CN115491943A (en) * | 2022-09-27 | 2022-12-20 | 河南省交通规划设计研究院股份有限公司 | Modular basic unit anti-reflection crack bituminous pavement structure |
| CN115506184A (en) * | 2022-08-19 | 2022-12-23 | 中交一公局集团有限公司 | Inverted combined structure based on cement stabilized macadam subbase and graded macadam base |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB280819A (en) * | 1927-06-16 | 1927-11-24 | Robert Henry King | A method of constructing hard roads from soft soil |
| JP2002294624A (en) * | 2001-04-03 | 2002-10-09 | Nippon Road Co Ltd:The | Water permeable pavement structure |
| CN102433815A (en) * | 2011-12-31 | 2012-05-02 | 山西省交通科学研究院 | Structure of asphalt pavement applicable to very heavy traffic |
| CN202865716U (en) * | 2012-08-07 | 2013-04-10 | 甘肃土木工程科学研究院 | Modified bituminous mixture pavement |
-
2013
- 2013-04-22 CN CN201310139183.0A patent/CN103215875B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB280819A (en) * | 1927-06-16 | 1927-11-24 | Robert Henry King | A method of constructing hard roads from soft soil |
| JP2002294624A (en) * | 2001-04-03 | 2002-10-09 | Nippon Road Co Ltd:The | Water permeable pavement structure |
| CN102433815A (en) * | 2011-12-31 | 2012-05-02 | 山西省交通科学研究院 | Structure of asphalt pavement applicable to very heavy traffic |
| CN202865716U (en) * | 2012-08-07 | 2013-04-10 | 甘肃土木工程科学研究院 | Modified bituminous mixture pavement |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343067B (en) * | 2013-08-01 | 2018-10-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of Heavy Traffic Long Life Asphalt Pavement |
| CN104343067A (en) * | 2013-08-01 | 2015-02-11 | 上海市政工程设计研究总院（集团）有限公司 | Long-service-lifetime bituminous pavement for heavy traffic |
| CN104499398A (en) * | 2014-12-12 | 2015-04-08 | 东南大学 | Asphalt pavement structure applicable to expansion deformation of black cotton soil subgrade |
| CN104499397A (en) * | 2014-12-12 | 2015-04-08 | 东南大学 | Asphalt pavement structure based on coordination of deformation of subgrade and pavement |
| CN104762858A (en) * | 2015-03-16 | 2015-07-08 | 夏旻淑 | Asphalt concrete construction method for soft soil matrix pavement |
| CN104762858B (en) * | 2015-03-16 | 2017-03-22 | 夏旻淑 | Asphalt concrete construction method for soft soil matrix pavement |
| CN106592370A (en) * | 2016-12-05 | 2017-04-26 | 扬州大学 | Drainability bituminous pavement |
| CN108829939A (en) * | 2018-05-24 | 2018-11-16 | 东南大学 | A kind of theory and method for numerical simulation for examining the skeleton stability that gathers materials |
| CN108829939B (en) * | 2018-05-24 | 2021-09-28 | 东南大学 | Theory and numerical simulation method for testing aggregate skeleton stability |
| CN112376349A (en) * | 2020-11-24 | 2021-02-19 | 东南大学 | Long-life flexible base asphalt pavement structure |
| CN112376349B (en) * | 2020-11-24 | 2022-04-08 | 东南大学 | Long-life flexible base asphalt pavement structure |
| CN113774749A (en) * | 2021-10-26 | 2021-12-10 | 中铁四局集团第一工程有限公司 | Pavement structure construction method of dynamic square of automobile test field |
| CN115506184A (en) * | 2022-08-19 | 2022-12-23 | 中交一公局集团有限公司 | Inverted combined structure based on cement stabilized macadam subbase and graded macadam base |
| CN115491943A (en) * | 2022-09-27 | 2022-12-20 | 河南省交通规划设计研究院股份有限公司 | Modular basic unit anti-reflection crack bituminous pavement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103215875B (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103215875B (en) | A kind of anti-fatigue asphalt pavement based on differential settlement | |
| CN210262547U (en) | Wide structure is tied up to bituminous paving | |
| CN111074715A (en) | Anti-crack roadbed and pavement structure and construction method thereof | |
| CN204825551U (en) | Waterproof crack control bituminous paving structure | |
| CN201296895Y (en) | Vertical cracking pavement repair structure | |
| Hainin et al. | The importance of stone mastic asphalt in construction | |
| CN103628380A (en) | Low-dosage cement modified graded broken stone base pavement | |
| CN205171301U (en) | Bituminous pavement structure of big flexible basic unit of particle diameter water permeability bituminous mixture | |
| CN210712412U (en) | Asphalt pavement structure | |
| CN111455768A (en) | Flexible roadbed asphalt concrete structure and construction method thereof | |
| CN208803318U (en) | A kind of hot-zone Airport Asphalt structure of heavy traffic summer | |
| CN204940043U (en) | A kind of asphalt pavement structure being applicable to hot area | |
| CN108301276A (en) | A kind of long-life tencel concrete road surface structure and construction method | |
| CN108360327A (en) | A kind of permanent seal cooling advanced composite material (ACM) road structure and construction method | |
| CN106522056A (en) | Design method of rigid-flexible composite basecourse road section based on asphalt pavement | |
| CN104499397A (en) | Asphalt pavement structure based on coordination of deformation of subgrade and pavement | |
| CN204000529U (en) | Engineering asphalt pavement structure | |
| CN204589746U (en) | A kind of composite road surface structure being applicable to saturated dredger soft soil area Heavy Traffic condition | |
| CN204199134U (en) | The transition structure of a kind of semi-rigid type base and pellet flexbile base | |
| CN215976685U (en) | Anti-crack pavement structure | |
| CN207672357U (en) | A kind of transition slab at bridge head and asphalt concrete pavement changeover portion composite pavement structure | |
| RU2318947C2 (en) | Road paving construction method | |
| CN113718580A (en) | Anti-crack pavement structure and construction method | |
| CN211256538U (en) | Ultrathin high-performance composite semi-flexible surface layer pavement structure | |
| CN210085965U (en) | High-modulus asphalt mixture road structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20210422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |