CN109056445A - A kind of intersection Rut resistance pavement structure and method - Google Patents
A kind of intersection Rut resistance pavement structure and method Download PDFInfo
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- CN109056445A CN109056445A CN201810977917.5A CN201810977917A CN109056445A CN 109056445 A CN109056445 A CN 109056445A CN 201810977917 A CN201810977917 A CN 201810977917A CN 109056445 A CN109056445 A CN 109056445A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 34
- 239000004568 cement Substances 0.000 claims abstract description 19
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000010426 asphalt Substances 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000280 densification Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- 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
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- 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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
-
- 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
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of intersection Rut resistance pavement structure of road engineering pavement structure technical field and methods, aim to solve the problem that the technical issues of track phenomenon easily occurs in intersection, the pavement structure include adhesive layer under grain formula modified pitch cutting optimal, FTR in the thick type close-graded particulate formula modified pitch upper layer, the upper adhesive layer of FTR, thick type close-graded set gradually from top to bottom, high strength RC rigidly upper base, cement stabilized macadam it is semi-rigid go to a grassroots level, the semi-rigid underlayment of cement stabilized macadam and drainage blanket.Pavement structure of the invention can effectively delay the appearance of track, while have the advantages that easy to maintenance, quick, can reduce the influence to traffic to greatest extent.
Description
Technical field
The present invention relates to road engineering pavement structure technical fields, and in particular to a kind of intersection Rut resistance road surface knot
Structure and method.
Background technique
The formation of track is mainly asphalt surface course under the action of traffic load, and further densification, extruding make under wheel path
Heavy, two sides are heaved, and form wave crest and trough shape.Track is broadly divided into three classes, it may be assumed that wear pattern track, densification type track and unstability
Type track, wear pattern track are mainly generated by tire wear road table, unavoidably；Densification type track is due to asphalt
Voidage it is too big, roll and chase after close cause；Unstability type track is since under hot conditions, shear stress is more than the anti-of asphalt
Shear strength causes asphalt lateral flow to deform, and constantly accumulation forms track.
And because of the limitation of identifier marking at intersection, vehicle can only be along fixed wheelmark band logical row, to road structure
The Load concentration that layer generates is in a certain region, the far super general section of load load, causes intersection road surface structare layer first
Fatigue is first generated, and due to the setting of traffic lights, guiding solid line position vehicle frequently braking in entrance driveway lane in the region rises
Step makes each structure interlayer sliding, passage easily occur the horizontal push-pull effort of pavement of road surface layer, so ratio at intersection
More early there is track in general road.Intersection area is larger simultaneously, and the ponding velocity of discharge is slower, in addition individual sites are being constructed
When slope control it is inaccurate, there is seeping phenomenon, rainwater, underground water are easy to enter in roadbed by the crack of road surface structare layer,
Roadbed is impregnated the formation for further accelerating track by water.
Intersection especially entrance driveway track have become urban road and Trunk highway highway cities and towns section it is main
One of disease not only influences to drive a vehicle comfortable and safe, but also so that road is generated traffic congestion phenomenon because of not timing maintenance, therefore,
It is had great significance using Rut resistance road surface structare layer to solving road track problem at intersection.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of intersection Rut resistance pavement structure and method, with solution
Certainly easily there is the technical issues of track phenomenon in intersection, which can effectively delay the appearance of track, has simultaneously
Have the advantages that easy to maintenance, quick, the influence to traffic can be reduced to greatest extent.
By the investigation to a large amount of intersection track situations, it is found that general bituminous pavement 3 years ' operation or so starts to generate vehicle
Rut, rutting depth is obvious after operation 5 years and influences road-ability.By a large amount of experimental analysis, it is concluded that track
Sliding, passage occur between each surface layer and between cutting optimal and base for the main cause of generation, and slide, elapse the reason of generation
It is not firm to be bonded between each layer, is not enough to offset the horizontal thrust between each layer；Meanwhile base material intensity deficiency can also be led
It causes to elapse between pavement structure track and each layer, and existing cement stabilized macadam base can only meet general road
The requirement of structure is unable to satisfy the requirement of intersection carriageway surfacing structure, it is therefore necessary to while solving above-mentioned two problems ability
Thoroughly solve the problems, such as intersection track.
The technical scheme adopted by the invention is as follows:
A kind of intersection Rut resistance pavement structure is designed, which includes the thick type level of confidentiality set gradually from top to bottom
With being bonded under grain formula modified pitch cutting optimal, FTR in particulate formula modified pitch upper layer, the upper adhesive layer of FTR, thick type close-graded
Layer, high strength RC rigidly upper base, cement stabilized macadam it is semi-rigid go to a grassroots level, the semi-rigid underlayment of cement stabilized macadam
And drainage blanket.
Preferably, the upper base of high strength RC rigidity includes the concrete substrate with a thickness of 250mm~300mm
With high tensile reinforcement mesh sheet, two layers of high tensile reinforcement mesh sheet is parallel and symmetrical above and below to be set in the concrete substrate, and
The high strength reinforcement mesh pitch of fins concrete substrate end face 20mm.
Preferably, the high tensile reinforcement mesh sheet is made of the longitudinal high tensile reinforcement and transverse direction high tensile reinforcement that diameter is 6mm, and
The mesh size of the high tensile reinforcement mesh sheet is 200mm × 200mm.
Preferably, the thick type close-graded particulate formula modified pitch upper layer with a thickness of 40mm~50mm, voidage is
3%~5%；In the thick type close-graded grain formula modified pitch cutting optimal with a thickness of 50mm~70mm, voidage is 3%~5%.
Preferably, the cement stabilized macadam it is semi-rigid go to a grassroots level it is equal with the thickness of the semi-rigid underlayment of cement stabilized macadam
For 180mm.
Preferably, the thickness of adhesive layer is not more than 6mm under adhesive layer and FTR on the FTR.
Preferably, the thick type close-graded particulate formula modified pitch upper layer replaces with SMA upper layer, in thick type close-graded
Grain formula modified pitch cutting optimal replaces with SMA cutting optimal.
A kind of intersection rut resisting method is laid with above-mentioned Rut resistance pavement structure in import lane.
Thick type close-graded particulate formula modified asphalt mixture abbreviation AC-13C, grain formula modified pitch mixing in thick type close-graded
Expect abbreviation AC-20C.
Compared with prior art, the method have the benefit that:
1, the present invention can effectively prevent the hair of interformational sliding, pushing phenomenon by the globality between enhancing each layer of pavement structure
It is raw；With high strength RC, rigidly upper base replaces cement stabilized macadam base simultaneously, to improve the structural strength of base,
Prevent base occur cracking depression and cause track there is a phenomenon where.
2, the present invention can effectively improve the upper base of rigidity by the way that two layers of high strength reinforcement mesh is arranged in base on concrete rigid
The structural strength of layer prevents base course crack, disconnected plate and the diseases such as broken；It goes to a grassroots level with underlayment using cement stabilized macadam semi-rigid
Property material, can not only effectively improve base's bearing capacity, base's service life can also be made to greatly improve, can effectively reduce track
Phenomenon.
3, the rainwater permeated can be completely exhausted out by the present invention by drainage blanket, guarantee that roadbed is in drying regime,
Prevent destruction of the rainwater to roadbed.
4, the present invention can be had using reinforcing the globality between each layer by the way of enhancing upper base layer structure intensity and combining
Effect avoids the common fault using single mode, can significantly postpone intersection track and the time limit occurs, and is easy to maintenance, quick, to friendship
Logical to influence smaller, when maintenance, only needs replacing surface layer, without handling base.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is high strength RC rigidly upper base's schematic cross-section；
Fig. 3 is high tensile reinforcement mesh sheet top view；
Fig. 4 is intersection with reference to figure；
1 is thick type close-graded particulate formula modified pitch upper layer, and 2 be adhesive layer on FTR, and 3 is modified for grain formula in thick type close-graded
Pitch cutting optimal, 4 be adhesive layer under FTR, and 5 be high strength RC rigidly upper base, and 6 be under cement stabilized macadam is semi-rigid
Base, 7 be the semi-rigid underlayment of cement stabilized macadam, and 8 be drainage blanket, and 9 be concrete substrate, and 10 be high tensile reinforcement mesh sheet.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.Unit module zero involved in following embodiment
The devices such as part, structure, mechanism are then unless otherwise instructed conventional commercial product.
Embodiment 1: as shown in Figure 1-Figure 3, a kind of intersection Rut resistance pavement structure, the pavement structure includes from upper
The thick type close-graded particulate formula modified pitch upper layer 1 that sets gradually under, the upper adhesive layer 2 of FTR, grain formula changes in thick type close-graded
Property pitch cutting optimal 3, under FTR adhesive layer 4, high strength RC rigidly upper base 5, cement stabilized macadam is semi-rigid goes to a grassroots level
6, the semi-rigid underlayment 7 of cement stabilized macadam and drainage blanket 8.
Thick type close-graded particulate formula modified pitch upper layer 1 is modified drip for the thick type close-graded particulate formula of 40mm~50mm thickness
Green mixture, voidage are 3%~5%, and partial size is not more than 13mm；Grain formula modified pitch cutting optimal 3 is in thick type close-graded
Grain formula modified asphalt mixture in the thick type close-graded of 50mm~70mm thickness, voidage are 3%~5%, and partial size is 13mm~20mm.
In other embodiments, grain formula is modified in thick type close-graded particulate formula modified pitch upper layer 1 and thick type close-graded
The material of pitch cutting optimal 3 is replaced by SMA.
Adhesive layer 4 is all made of Henan Wei Sheng grey decision system Co., Ltd under adhesive layer 2 and FTR on FTR in the present embodiment
The FTR-1 applying material of production forms, and thickness is not more than 6mm.
Rigidly upper base 5 includes concrete substrate 9 and high tensile reinforcement mesh sheet 10, high tensile reinforcement mesh sheet to high strength RC
10 be 6mm by diameter longitudinal high tensile reinforcement (being CRB550 in the present embodiment) and lateral high tensile reinforcement form, and high tensile reinforcement
The mesh size of mesh sheet 10 is 200mm × 200mm；Concrete substrate 9 is made of C35 concrete, with a thickness of 250~300mm,
Upper layer and lower layer high tensile reinforcement mesh sheet 10 is equipped in concrete substrate 9, two high tensile reinforcement mesh sheet 10 are arranged in parallel simultaneously in the horizontal direction
And it is symmetrical above and below, high tensile reinforcement mesh sheet 10 is away from 9 upper surface of concrete substrate or lower end surface 20mm, to guarantee high strength RC
The intensity of base 5 in rigidity prevents fracture and the appearance of pit slot.
In the present embodiment, the thickness of cement stabilized macadam semi-rigid go to a grassroots level 6 and the semi-rigid underlayment 7 of cement stabilized macadam
It is 180mm；The thickness of drainage blanket is not less than 300mm.
A kind of intersection rut resisting method is laid with the pavement structure in import lane, that is, in imported car Taoist
The pavement structure is laid within the scope of 20 meters of trade and its front.
The operate with method of above-mentioned pavement structure is as follows:
As shown in figure 4, being laid with the pavement structure within the scope of 10 meters before and after the crossing inlet road, it is laid with the expense of the pavement structure
It is only higher by 25% than common section cost, after being laid with the pavement structure, crossing inlet road track effectively can be repaired into the time limit by original
Extend within 2~5 years 10 years, and maintenance when, only need to handle surface layer, it is efficient and convenient, to traffic
It influences smaller.
The present invention, can be simultaneously using reinforcing the globality between each layer by the way of enhancing upper base layer structure intensity and combining
The shortcomings that avoiding single mode, for example, when individually enhancing the globality between surface layer and base, under big load effect, base
After occurring fracture because of structural strength deficiency, be crushed, the appearance of pavement structure track is also resulted in, while carrying out road surface trimming
When, it needs thoroughly to handle entire pavement structure, it is time-consuming and laborious, influence traffic.Individually when enhancing base layer structure intensity,
Since the globality between each surface layer is poor, it is easy to happen sliding passage, and then generate track, does not have due Rut resistance and make
With.Coagulation body base common simultaneously is also easy to happen the diseases such as disconnected plate, pit slot, is not easy to use, needs to increase high strength reinforcement mesh
The structural strength of Pian Lai structural reform base.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (8)
1. a kind of intersection Rut resistance pavement structure, it is characterised in that: the pavement structure includes setting gradually from top to bottom
Thick type close-graded particulate formula modified pitch upper layer, the upper adhesive layer of FTR, grain formula modified pitch cutting optimal in thick type close-graded,
Adhesive layer under FTR, high strength RC rigidly upper base, cement stabilized macadam it is semi-rigid go to a grassroots level, cement stabilized macadam half
Rigid underlayment and drainage blanket.
2. intersection Rut resistance pavement structure according to claim 1, it is characterised in that: the high tensile reinforcement coagulation
The native upper base of rigidity includes the concrete substrate and high tensile reinforcement mesh sheet with a thickness of 250mm~300mm, two layers of high tensile reinforcement
Mesh sheet is parallel and symmetrical above and below to be set in the concrete substrate, and the high strength reinforcement mesh pitch of fins concrete substrate end face
20mm。
3. intersection Rut resistance pavement structure according to claim 2, it is characterised in that: the high tensile reinforcement mesh sheet
It is made of longitudinal high tensile reinforcement and lateral high tensile reinforcement that diameter is 6mm, and the mesh size of the high tensile reinforcement mesh sheet is
200mm×200mm。
4. intersection Rut resistance pavement structure according to claim 1, it is characterised in that: the thick type close-graded is thin
Grain formula modified pitch upper layer with a thickness of 40mm~50mm, voidage is 3%~5%；Grain formula is modified in the thick type close-graded
Pitch cutting optimal with a thickness of 50mm~70mm, voidage is 3%~5%.
5. intersection Rut resistance pavement structure according to claim 1, it is characterised in that: the cement stabilized macadam
Semi-rigid go to a grassroots level with the thickness of the semi-rigid underlayment of cement stabilized macadam is 180mm.
6. intersection Rut resistance pavement structure according to claim 1, it is characterised in that: adhesive layer on the FTR
It is not more than 6mm with the thickness of adhesive layer under FTR.
7. intersection Rut resistance pavement structure according to claim 1, it is characterised in that: the thick type close-graded is thin
Grain formula modified pitch upper layer replaces with SMA upper layer, and grain formula modified pitch cutting optimal replaces with below SMA in thick type close-graded
Layer.
8. a kind of intersection rut resisting method, it is characterised in that: be laid with claim 1-7 any one institute in import lane
The Rut resistance pavement structure stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810977917.5A CN109056445A (en) | 2018-08-27 | 2018-08-27 | A kind of intersection Rut resistance pavement structure and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810977917.5A CN109056445A (en) | 2018-08-27 | 2018-08-27 | A kind of intersection Rut resistance pavement structure and method |
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ID=64756128
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629463A (en) * | 2019-01-23 | 2019-04-16 | 平顶山市公路交通勘察设计院 | A kind of bridge end ruggedized construction and bridge plate end crack treatment technique |
| CN109680581A (en) * | 2018-12-25 | 2019-04-26 | 中交一公局第一工程有限公司 | The structure and its construction method on ultrahigh-temperature strong wind climatological region modified pitch top layer road surface |
| CN111676751A (en) * | 2020-06-05 | 2020-09-18 | 浙江新中源建设有限公司 | Road construction method |
| CN112878136A (en) * | 2021-03-24 | 2021-06-01 | 合肥工业大学 | Intersection rubber asphalt anti-rutting road surface detection and design method based on ground penetrating radar |
| CN112962381A (en) * | 2021-02-19 | 2021-06-15 | 中交第二公路工程局有限公司 | Quick-setting high-performance grouting composite pavement and construction process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109680581A (en) * | 2018-12-25 | 2019-04-26 | 中交一公局第一工程有限公司 | The structure and its construction method on ultrahigh-temperature strong wind climatological region modified pitch top layer road surface |
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| CN112962381A (en) * | 2021-02-19 | 2021-06-15 | 中交第二公路工程局有限公司 | Quick-setting high-performance grouting composite pavement and construction process thereof |
| CN112878136A (en) * | 2021-03-24 | 2021-06-01 | 合肥工业大学 | Intersection rubber asphalt anti-rutting road surface detection and design method based on ground penetrating radar |
| CN112878136B (en) * | 2021-03-24 | 2023-01-24 | 合肥工业大学 | Intersection rubber asphalt anti-rutting road surface detection and design method based on ground penetrating radar |
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