CN110273338A - A kind of rigid road base and flexible roadbed interface and its processing method - Google Patents
A kind of rigid road base and flexible roadbed interface and its processing method Download PDFInfo
- Publication number
- CN110273338A CN110273338A CN201910648871.7A CN201910648871A CN110273338A CN 110273338 A CN110273338 A CN 110273338A CN 201910648871 A CN201910648871 A CN 201910648871A CN 110273338 A CN110273338 A CN 110273338A
- Authority
- CN
- China
- Prior art keywords
- flexible
- roadbed
- glass fibre
- rigid
- road base
- 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.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 65
- 239000003365 glass fiber Substances 0.000 claims abstract description 52
- 239000002344 surface layer Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 7
- 239000011384 asphalt concrete Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 201000010099 disease Diseases 0.000 abstract description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 239000004567 concrete Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 239000010426 asphalt Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000035882 stress Effects 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
- E01C3/00—Foundations for 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
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- 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
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
Abstract
The present invention provides a kind of rigid road base and flexible roadbed interface and its processing method, and the flexible road basal part is corresponding with the rigid road base bottom, and the flexibility bedding of roadbed is corresponding with the rigid road base surface layer；The flexible road basal part and the rigid road base bottom are arranged with first layer Glass Fibre Earth Grid, and the first layer Glass Fibre Earth Grid anchors into the flexible road basal part and the rigid road base bottom not less than 500mm；It is provided with second layer Glass Fibre Earth Grid between the flexible bedding of roadbed and the flexible road basal part, the second layer Glass Fibre Earth Grid extends between the rigid surface and the rigid road base bottom；The first layer Glass Fibre Earth Grid and the second layer Glass Fibre Earth Grid are applied using self-adhesion pressure-sensing glue or modified pitch surface.The invention avoids the use costs of staple in Glass Fibre Earth Grid use, extend roadbed ageing time, reduce the diseases such as crack, sedimentation caused by separating as Glass Fibre Earth Grid with ground.
Description
Technical field
The invention belongs to a kind of roadbed and its processing method more particularly to a kind of rigid road base and flexible roadbed interface with
And its processing method.
Background technique
Currently, road surface becomes relative narrowness with the increase of traffic current density, in order to improve the traffic capacity of road, need
It will be to road widening.Simultaneously as the sharp increase of the volume of traffic, the damage of road pavement increasingly aggravate, more and more road surfaces face reparation
Work.In to road widening and repairing construction, the case where rigid road base joins with flexible roadbed can be potentially encountered.Rigid road
Base rigidity is big, deforms under load action smaller；Flexible subgrade stiffness is relatively small, deforms under load action relatively large.The two
Deformation is different, and over time, interface will generate crack.In order to solve this problem, the mode slope of attachment strap is generallyd use
Certain slope is arranged in the hard and soft linking of shape.But in this way, when the tensile stress that concrete displacement generates is more than asphalt surface course
When tensile strength, and reflection crack can be generated, reflection crack gradually extends until pavement destruction.
As it can be seen that rigid road base and flexible roadbed interface how are handled, with road in road widening and repairing construction
Road construction quality is the technical problem that those skilled in the art need to solve.
Summary of the invention
In order to make easy construction, economic security, the present invention provides the rigid road base and flexible roadbed interface of a kind of simplicity
And its processing method.
Technical scheme is as follows: a kind of rigid road base and flexible roadbed interface and its processing method.
A kind of rigid road base and flexible roadbed interface, the interface side are flexible roadbed, and the interface is another
Side is rigid road base；The flexibility roadbed is successively flexible road basal part and flexible bedding of roadbed from the bottom up；The rigidity road
Base is successively rigid road base bottom and rigid road base surface layer from the bottom up；The flexible road basal part and the rigid road base bottom
Corresponding, the flexibility bedding of roadbed is corresponding with the rigid road base surface layer；The flexible road basal part and the rigid road base bottom
Subordinate is provided with first layer Glass Fibre Earth Grid, and the first layer Glass Fibre Earth Grid anchors into the flexible road basal part and described
Rigid road base bottom is not less than 500mm；The second layer is provided between the flexible bedding of roadbed and the flexible road basal part
Glass Fibre Earth Grid, the second layer Glass Fibre Earth Grid extend between the rigid surface and the rigid road base bottom；
The first layer Glass Fibre Earth Grid and the second layer Glass Fibre Earth Grid are applied using self-adhesion pressure-sensing glue or modified pitch surface
It applies.
Preferably, the first layer Glass Fibre Earth Grid anchors into flexible road basal part not less than 5m.
Preferably, the flexible bedding of roadbed and the rigid road base surface layer thickness are all larger than 40mm.
Preferably, described two layers of flexible road base part, lower layer is three skin rock layers, and upper layer is cement stabilized macadam layer.
Preferably, described two layers of flexible bedding of roadbed point, lower layer is coarse grain modified asphalt concrete layer, and upper layer changes for particulate
Property asphalt concrete layer.
A kind of processing method of rigid road base and flexible roadbed interface, which is characterized in that
Step 1 is laid with first layer Glass Fibre Earth Grid, the first layer Glass Fibre Earth Grid under flexible road basal part
Rigid road base bottom is anchored into, anchors into part not less than 500mm；
Step 2, flexible roadbed side is laid with the flexible road basal part on the first layer Glass Fibre Earth Grid, and
Rigid road base side is laid with the rigid road base bottom on the first layer Glass Fibre Earth Grid；
Step 3 is laid with second layer Glass Fibre Earth Grid, the second layer glass geotechnique on the flexible road basal part
Grid extends into the rigid road base bottom, the second layer Glass Fibre Earth Grid anchor into the flexible road basal part and it is described just
Property roadbed bottom part is not less than 500mm；
Step 4, the flexible roadbed side on the second layer Glass Fibre Earth Grid pave flexible bedding of roadbed, described
Rigid road base side on second layer Glass Fibre Earth Grid paves rigid road base surface layer；
Preferably, the first layer Glass Fibre Earth Grid is rolled after the completion of being laid with the light-duty road roller of rubber tire.
Beneficial effects of the present invention are as follows:
1, the mode ramped shaped hard and soft linking setting certain slope for adding attachment strap is substituted, does not increase surface layer and roadbed
Thickness, it is relatively inexpensive, and the gradient is not formed in rigid road base and flexible bed road interface, more smoothly.
2, TGXG belongs to mature construction technology, and easy construction does not need special construction machinery and professional technique
Personnel.
3, not only have the excellent of glass fibre using the Glass Fibre Earth Grid that self-adhesion pressure-sensing glue or modified pitch surface coat
The opposite sex, and have the compatibility with asphalt again, so that grid and bituminous pavement is combined closely integrally, greatly improves soil
The wearability and shear ability of work grid.The use cost of huge staple in common Glass Fibre Earth Grid use is avoided, and
And roadbed ageing time is extended, reduce the diseases such as crack, sedimentation caused by separating as Glass Fibre Earth Grid with ground.
4, Glass Fibre Earth Grid not only avoids the case where rigid road base and flexible roadbed interface generation crack, controls
The generation of reflection crack also enhances the Reflective Cracking Resistance and intensity of surface layer at this.40mm thick fiberglass TGXG
The intensity of enhancing asphalt concrete pavement, which is equivalent to, enhances asphalt concrete pavement 100mm- without earth grille
(4-7 inches) thick intensity of 175mm.
Detailed description of the invention
Fig. 1 is a kind of sectional view of the processing method of rigid road base and flexible roadbed interface of the invention；
Fig. 2 is a kind of a kind of section of embodiment of the processing method of rigid road base and flexible roadbed interface of the invention
Figure.
1 in figure: surface layer；2: flexible roadbed；3: rigid road base；4: Glass Fibre Earth Grid (self-adhesion pressure-sensing glue or modified pitch
Surface coating)；5: bituminous concrete；6: cement stabilized macadam；7: three Pi Shi；8: armored concrete.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It is wanted according to following explanation and right
Book is sought, advantages and features of the invention will become apparent from.It should be noted that attached drawing is all made of very simplified form and using non-
Accurately ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Embodiment:
Attached drawing 1 is diagrammatic cross-section.Roadbed side slope line is accurately released first, and substrate soil is flattened, and is then laid with first
Layer Glass Fibre Earth Grid 4, first layer Glass Fibre Earth Grid 4 is laid on flexible 2 bottom of roadbed, and anchors into 3 bottom of rigid road base not
Less than 500mm.Glass Fibre Earth Grid 4 is applied using self-adhesion pressure-sensing glue or modified pitch surface, and bottom surface is answered smooth, close when laying
It is real, it must not be overlapped, crimp, twist together.It is rolled 1-2 times after the completion of laying with the light-duty road roller of rubber tire.Again in first layer geotechnique's lattice
It is laid with flexible road base 2 on grid, second layer Glass Fibre Earth Grid 4 is laid on flexible roadbed 2,1 bottom of surface layer is anchored into and is not less than
500mm, with the paving mode of first layer, finally pave surface layer 1 on it, and the same day was needed to complete paving for surface layer 1.Effectively use glass
The minimum thickness that 4 reinforcing material of glass fiber earthwork grid enhances bituminous concrete is 40mm.
As preferable embodiment, attached drawing 2 is the sectional view of real case, on 8 roadbed of armored concrete (rigid road
Base) and tri- skin stone of cement stabilized macadam 6+, 7 roadbed (flexible roadbed) interface, double glazing fiber earthwork grid 4 is added, and right
Glass Fibre Earth Grid 4 is coated using self-adhesion pressure-sensing glue or modified pitch surface.First layer is arranged in tri- skin of cement stabilized macadam 6+
7 roadbed of stone (flexible roadbed) bottom, wide 5m, and anchor into 8 roadbed of armored concrete (rigid road base) bottom 500mm.The second layer is set
It sets in 5 surface layer bottom of bituminous concrete, anchors into two sides 500mm.5 surface layer 120mm of bituminous concrete is thick, is greater than 40mm.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (7)
1. a kind of rigid road base and flexible roadbed interface, which is characterized in that the interface side is flexible roadbed, the friendship
The interface other side is rigid road base；The flexibility roadbed is successively flexible road basal part and flexible bedding of roadbed from the bottom up；Institute
Stating rigid road base is successively rigid road base bottom and rigid road base surface layer from the bottom up；The flexible road basal part and the rigidity
Roadbed bottom is corresponding, and the flexibility bedding of roadbed is corresponding with the rigid road base surface layer；The flexible road basal part and it is described just
Property roadbed bottom is arranged with first layer Glass Fibre Earth Grid, and the first layer Glass Fibre Earth Grid anchors into the flexible road substrate
Portion and the rigid road base bottom are not less than 500mm；It is arranged between the flexible bedding of roadbed and the flexible road basal part
There is second layer Glass Fibre Earth Grid, the second layer Glass Fibre Earth Grid extends to the rigid surface and the rigid road base bottom
Between portion；The first layer Glass Fibre Earth Grid and the second layer Glass Fibre Earth Grid use self-adhesion pressure-sensing glue or modified pitch
Surface coating.
2. rigid road base as described in claim 1 and flexible roadbed interface, which is characterized in that the first layer glass geotechnique
Grid anchors into flexible road basal part not less than 5m.
3. rigid road base as described in claim 1 and flexible roadbed interface, which is characterized in that the flexibility bedding of roadbed and
The rigid road base surface layer thickness is all larger than 40mm.
4. rigid road base as described in claim 1 and flexible roadbed interface, which is characterized in that the flexible road base part
Two layers, lower layer is three skin rock layers, and upper layer is cement stabilized macadam layer.
5. rigid road base as described in claim 1 and flexible roadbed interface, which is characterized in that the flexibility bedding of roadbed point
Two layers, lower layer is coarse grain modified asphalt concrete layer, and upper layer is particulate modified asphalt concrete layer.
6. the processing method of a kind of rigid road base and flexible roadbed interface, which is characterized in that
Step 1, is laid with first layer Glass Fibre Earth Grid under flexible road basal part, and the first layer Glass Fibre Earth Grid anchors into
Rigid road base bottom anchors into part not less than 500mm；
Step 2, flexible roadbed side is laid with the flexible road basal part on the first layer Glass Fibre Earth Grid, and in institute
It states rigid road base side on first layer Glass Fibre Earth Grid and is laid with the rigid road base bottom；
Step 3 is laid with second layer Glass Fibre Earth Grid, the second layer Glass Fibre Earth Grid on the flexible road basal part
The rigid road base bottom is extended into, the second layer Glass Fibre Earth Grid anchors into the flexible road basal part and the rigid road
Basal part part is not less than 500mm；
Step 4, the flexible roadbed side on the second layer Glass Fibre Earth Grid pave flexible bedding of roadbed, described second
Rigid road base side on layer Glass Fibre Earth Grid paves rigid road base surface layer.
7. the processing method of rigid road base as described in claim 1 and flexible roadbed interface, which is characterized in that described first
Layer Glass Fibre Earth Grid is rolled after the completion of being laid with the light-duty road roller of rubber tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648871.7A CN110273338A (en) | 2019-07-18 | 2019-07-18 | A kind of rigid road base and flexible roadbed interface and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648871.7A CN110273338A (en) | 2019-07-18 | 2019-07-18 | A kind of rigid road base and flexible roadbed interface and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110273338A true CN110273338A (en) | 2019-09-24 |
Family
ID=67964766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910648871.7A Pending CN110273338A (en) | 2019-07-18 | 2019-07-18 | A kind of rigid road base and flexible roadbed interface and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180917A (en) * | 2021-12-21 | 2022-03-15 | 滁州市公路管理服务中心 | Pavement-paved filling type large-particle-size cement-stabilized macadam base material and method |
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|---|---|---|---|---|
| KR200233617Y1 (en) * | 2001-02-23 | 2001-09-28 | 주식회사 동성엔지니어링 | Rahmen Bridge |
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| JP2010163759A (en) * | 2009-01-13 | 2010-07-29 | Jfe Mineral Co Ltd | Pavement repairing method |
| RU84393U1 (en) * | 2009-02-16 | 2009-07-10 | Общество с ограниченной ответственностью "Юган геоматериалы" | DEVELOPMENT OF ROAD CLOTHES |
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| CN202881845U (en) * | 2012-10-30 | 2013-04-17 | 河北工业大学 | Highway bridge reinforced soil flexible bridge abutment |
| CN203716051U (en) * | 2014-01-21 | 2014-07-16 | 浙江省交通规划设计研究院 | Soft soil foundation based bridgehead structure |
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