CN108643037B - A kind of bridge asphalt pavement structure and method of construction - Google Patents
A kind of bridge asphalt pavement structure and method of construction Download PDFInfo
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- CN108643037B CN108643037B CN201810376740.3A CN201810376740A CN108643037B CN 108643037 B CN108643037 B CN 108643037B CN 201810376740 A CN201810376740 A CN 201810376740A CN 108643037 B CN108643037 B CN 108643037B
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- asphalt
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- bitumen mixture
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- 239000010426 asphalt Substances 0.000 title claims abstract description 88
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 59
- 239000002344 surface layer Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of bridge asphalt pavement structure and methods of construction, structure includes roadbed and the upper surface of is laid on above roadbed layer, the longitudinal direction of upper layer has expansion joint, upper layer includes asphalt concrete layer and asphalt layer in lower layer, asphalt layer includes dense bitumen mixture and open gradation asphalt, asphalt layer with a thickness of 1.8~2.3cm.Part upper layer is first excluded when construction, is then laid with dense bitumen mixture and open gradation asphalt.This method of construction need to only exclude about half thickness of the upper surface of road surface layer, be more energy-saving and environmentally friendly；It excludes after thickness becomes smaller, the construction time is opposite to be shortened, and construction noise and dust pollution can also reduce, become smaller to the interference of existing traffic and nearby residents；The combination of open gradation asphalt and dense bitumen mixture is conducive to draining, inhales and make an uproar, keeps road surface safer.The invention is used for pavement construction field.
Description
Technical field
The present invention relates to pavement construction fields, more particularly to a kind of bridge asphalt pavement structure and method of construction.
Background technique
Asphalt material compressibility is big, can buffer the vertical vibration of vehicle；And not necessarily like cement pavement like that in order to increase
Add antiskid performance, in road surface cutting；It is convenient to build, and building course is small to the interference of the main line of communication.It is existing based on above-mentioned advantage
Some bridge pavement structures are based on asphalt concrete pavement.
Traditional bituminous pavement top is generally divided into two layers or three layers according to pavement grade, i.e. two layers upper layer and following
Layer, three layers i.e. upper layer, the middle and the lower layer.It is general to select dense-graded asphalt concrete, the selection for partial size, three-layered node
The upper surface of structure layer is AC-13 or SMA13, and middle surface layer is AC-20 or SMA20, cutting optimal AC-25；The upper surface of double-layer structure layer
For AC-13 or SMA13, cutting optimal AC-20.The partial size selection of surface layer usually follows up-thin-low-thick principle, and is continuous
, for example upper layer is AC-13, middle surface layer is AC-20, rather than selects AC-25 across AC-20.Each layer of asphalt surface course
Thickness generally takes 2.5~3 times of nominal maximum particle diameter of gathering materials, and according to the principle, the thickness range of upper layer is 4~6cm, and one
As take 4cm.Bridge pavement structure is when building, if pavement structure was in design period, and core pulling shows the entirety of surface layer
Property it is preferable, only need to be for the construction of upper layer, method of construction is to exclude the upper surface of entire 4cm layer, then overlay ad eundem match, grain
The asphalt of diameter, thickness.
Every kind of asphalt has respective advantage and disadvantage, if face layer is laid with dense bitumen mixture, although tool
There is preferable waterproof effect, but the problems such as antiskid performance degradation is fast, noise is big and water floats can be supervened；If used
Open gradation asphalt, although having preferable antiskid performance and noise-absorbing function, the structure of open gradation asphalt
Inside need it is pre- interspace and drainage path, void is easy to be mixed into the sundries of road surfaces and then destroys its original effect.Such as
Fruit bridge pavement uses open gradation asphalt, can be there are two main problem, and first problem is exactly that above-mentioned draining is asked
Topic, for the defect of open gradation asphalt, this programme introspects common open gradation asphalt, it is believed that the grade
The thickness matched is the main reason for causing draining defect；Second Problem is, if all spread out open with grade asphalt, this
When pavement structure inside water can longitudinal flow, expansion joint is adversely affected.
Traditional scheme is that entire upper layer is asphalt concrete structure, and thickness is bigger than normal, is also easy to mix inside upper layer
There are various fillers, after upper layer is closely knit, various functions are had a greatly reduced quality.
Summary of the invention
The purpose of the present invention is to provide a kind of bridge asphalt pavement structure and methods of construction, with drainage effect is good, builds
Make advantage at low cost.
The technical solution used in the present invention is:
A kind of bridge asphalt pavement structure, including roadbed and the upper surface of be laid on above roadbed layer, laterally the two of upper layer
Side is equipped with kerbstone, and the longitudinal direction of upper layer has expansion joint, and upper layer includes being in the asphalt concrete layer of downside and being in
The asphalt layer of upside, asphalt layer include dense bitumen mixture at left and right sides of the expansion joint and separate
The open gradation asphalt at expansion joint, asphalt layer with a thickness of 1.8~2.3cm.
As an improvement of the above scheme, open gradation asphalt contains high-viscosity asphalt.
As an improvement of the above scheme, the width positioned at two dense bitumen mixtures of expansion joint two sides be 4~
6m。
As an improvement of the above scheme, asphalt layer with a thickness of 2cm, the width of dense bitumen mixture is
The maximum particle diameter of 5m, open gradation asphalt are less than 10mm.
A kind of method of construction, for such as above-mentioned bridge asphalt pavement structure of constructing, comprising the following steps:
A, the segment thickness of upper layer is excluded to asphalt concrete layer is exposed, and then removes the floating dust sundries of road surface；
B, open gradation asphalt and dense bitumen mixture are laid with；
C, the open to traffic after the temperature of upper layer is lower than acceptance criteria.
As an improvement of the above scheme, half range road surface is first closed before excluding upper layer, is constructed using a point side mode.
As an improvement of the above scheme, in step b, it is first laid with the open gradation asphalt of two sides, re-lays centre
Dense bitumen mixture.
Beneficial effects of the present invention: this method of construction need to only exclude about half thickness of the upper surface of road surface layer, compared to passing
System entirely excludes upper layer, and discarded material is less, the material of overlay is also less, that is, is more energy-saving and environmentally friendly；Similarly, it excludes
After thickness becomes smaller, the construction time is opposite to be shortened, and construction noise and dust pollution can also be reduced, to existing traffic and nearby residents
Interference becomes smaller；The combination of open gradation asphalt and dense bitumen mixture is conducive to draining, inhales and make an uproar, makes road surface more
Safety.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the cross-section diagram of pavement structure；
Fig. 2 is the top view of pavement structure.
Specific embodiment
In terms of the drainage path of inside configuration, can according to circumstances be divided into two kinds: rainy periods road surface passes through longitudinal row
Water；Pass through evaporation draining after becoming a fine day.Kerbstone 3 can be all arranged using the left and right side edge on the road surface of asphalt pavement and be used for supporting and retaining system,
The top surface of middle kerbstone 3 can be higher than the absolute altitude on road surface, therefore kerbstone 3 blocks the lateral discharge of road surface internal moisture.In Fig. 2
On the basis of direction, the longitudinal direction on road surface refers to left and right directions, the i.e. extending direction on road surface；The transverse direction on road surface refers to up and down direction, i.e.,
The width direction on road surface.Rainy periods, the water that pavement structure is retained have two flow directions of vertical and horizontal, and wherein water is transversely
It can be stopped by kerbstone 3 when flowing, water swarms road surface in turn, then flows away along longitudinal.
Referring to Fig.1, Fig. 2, the present invention are a kind of bridge asphalt pavement structure, including roadbed 1 and are laid on above roadbed 1
Upper layer 2, the both lateral sides of upper layer 2 are equipped with kerbstone 3, and the longitudinal direction of upper layer 2 has expansion joint 4, and upper layer 2 includes place
In the asphalt concrete layer 21 of downside and asphalt layer 22 in upside.Asphalt layer 22 includes close to expansion joint
The open gradation asphalt 221 of the dense bitumen mixture 222 of 4 left and right sides and separate expansion joint 4, asphalt layer
22 with a thickness of 1.8~2.3cm.
Research find can it is ingenious control open gradation asphalt 221 thickness, reduce road surface inside retain water,
The water gushed on the two sides of road surface is correspondingly reduced, the interference of water burst road pavement is reduced.Meanwhile partially thin open gradation asphalt
221 help to improve the evaporation rate for becoming a fine day later moisture.After reduced thickness, in upper layer 2 remaining moisture be easy to by
Under the action of dynamic vehicle load lotus and water traction itself, upper layer 2 is flowed out；For bridge structure, water is in 2 longitudinal flow meeting of upper layer
4 service life of expansion joint is influenced, so moisture accumulation should be avoided in the road surface of 4 attachment of expansion joint, so dense bitumen is employed herein
Mixture 222.
As preferred embodiment, open gradation asphalt 221 contains high-viscosity asphalt, this is because open gradation pitch
221 gap of mixture is bigger than normal, if containing high-viscosity asphalt, will more effectively combine integral.
As preferred embodiment, the width positioned at two dense bitumen mixtures 222 of 4 two sides of expansion joint is
4~6m.
Preferably having a size of, asphalt layer 22 with a thickness of 2cm, i.e. open gradation asphalt 221 and close-graded
The thickness of asphalt 222 is 2cm；The width of dense bitumen mixture 222 is 5m；Open gradation asphalt 221
Maximum particle diameter be less than 10mm.
A kind of method of construction, for such as above-mentioned bridge asphalt pavement structure of constructing, comprising the following steps:
A, half range road surface is successively closed, is constructed using road surface point side mode, is usually being carried on construction work at night；
B, the segment thickness of upper layer 2 is excluded to asphalt concrete layer is exposed, and then removes the floating dust sundries of road surface；
C, it is laid with open gradation asphalt 221 and dense bitumen mixture 222, is first laid with the open gradation pitch of two sides
Mixture 221 re-lays intermediate dense bitumen mixture 222；
D, the open to traffic after the temperature of upper layer 2 is lower than 50 DEG C；
E, the road surface of following construction another side.
This method of construction need to only exclude about half the thickness of the upper surface of road surface layer 2, entirely exclude above compared to traditional
Layer 2, discarded material is less, the material of overlay is also less, that is, is more energy-saving and environmentally friendly；Similarly, construction after thickness becomes smaller is excluded
Time opposite shortening, construction noise and dust pollution can also reduce, become smaller to the interference of existing traffic and nearby residents；Open gradation
The combination of asphalt 221 and dense bitumen mixture 222 is conducive to draining, inhales and make an uproar, keeps road surface safer.
Certainly, the design creation is not limited to above embodiment, and the combination of the various embodiments described above different characteristic can also
To reach good effect.Those skilled in the art can also make equivalent change on the premise of without prejudice to spirit of the invention
Shape or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (7)
1. a kind of bridge asphalt pavement structure, it is characterised in that: including roadbed (1) and be laid on roadbed (1) layer the upper surface of above
(2), the both lateral sides of the upper layer (2) are equipped with kerbstone (3), and the longitudinal direction of the upper layer (2) has expansion joint (4),
The upper layer (2) includes the asphalt concrete layer (21) in downside and asphalt layer (22) in upside, described
Asphalt layer (22) includes the dense bitumen mixture (222) and separate expansion joint at left and right sides of expansion joint (4)
(4) open gradation asphalt (221), the asphalt layer (22) with a thickness of 1.8~2.3cm.
2. bridge asphalt pavement structure according to claim 1, it is characterised in that: the open gradation asphalt
(221) contain high-viscosity asphalt.
3. bridge asphalt pavement structure according to claim 2, it is characterised in that: be located at two of expansion joint (4) two sides
The width of the dense bitumen mixture (222) is 4~6m.
4. bridge asphalt pavement structure according to claim 1 or 2 or 3, it is characterised in that: the asphalt layer
(22) with a thickness of 2cm, the width of the dense bitumen mixture (222) is 5m, the open gradation asphalt (221)
Maximum particle diameter be less than 10mm.
5. a kind of method of construction, special for bridge asphalt pavement structure as described in any one of claims 1 to 4 of constructing
Sign be the following steps are included:
A, the segment thickness of upper layer (2) is excluded to asphalt concrete layer (21) are exposed, and the floating dust for then removing road surface is miscellaneous
Object；
B, open gradation asphalt (221) and dense bitumen mixture (222) are laid with；
C, the open to traffic after the temperature of upper layer (2) is lower than acceptance criteria.
6. method of construction according to claim 5, it is characterised in that: first close half range road before excluding upper layer (2)
Face is constructed using a point side mode.
7. method of construction according to claim 6, it is characterised in that: in the step b, be first laid with the open gradation drip of two sides
Green mixture (221) re-lays intermediate dense bitumen mixture (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376740.3A CN108643037B (en) | 2018-04-25 | 2018-04-25 | A kind of bridge asphalt pavement structure and method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376740.3A CN108643037B (en) | 2018-04-25 | 2018-04-25 | A kind of bridge asphalt pavement structure and method of construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108643037A CN108643037A (en) | 2018-10-12 |
| CN108643037B true CN108643037B (en) | 2019-11-01 |
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ID=63747674
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810376740.3A Active CN108643037B (en) | 2018-04-25 | 2018-04-25 | A kind of bridge asphalt pavement structure and method of construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110644343B (en) * | 2019-09-12 | 2021-08-10 | 中铁大桥局第七工程有限公司 | Method for quickly removing asphalt pavement layer of concrete bridge deck with uneven pits |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464304A (en) * | 1994-08-11 | 1995-11-07 | Dittmar; William G. | Method for recreational surface crack repair |
| JP2010163759A (en) * | 2009-01-13 | 2010-07-29 | Jfe Mineral Co Ltd | Pavement repairing method |
| CN103556569A (en) * | 2013-11-22 | 2014-02-05 | 张志成 | Composite seamless expansion joint for bridge |
| CN105002800A (en) * | 2015-07-27 | 2015-10-28 | 福州市规划设计研究院 | Pavement overhaul method and structure for treating different lane road surfaces with large road condition differences |
| CN206692972U (en) * | 2017-01-12 | 2017-12-01 | 中路高科(北京)公路技术有限公司 | A kind of porous asphalt pavement structure for bus rapid transit track |
| CN206956484U (en) * | 2017-06-09 | 2018-02-02 | 河南省路嘉路桥股份有限公司 | Cement concrete pavement layering disease repairing structure |
-
2018
- 2018-04-25 CN CN201810376740.3A patent/CN108643037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464304A (en) * | 1994-08-11 | 1995-11-07 | Dittmar; William G. | Method for recreational surface crack repair |
| JP2010163759A (en) * | 2009-01-13 | 2010-07-29 | Jfe Mineral Co Ltd | Pavement repairing method |
| CN103556569A (en) * | 2013-11-22 | 2014-02-05 | 张志成 | Composite seamless expansion joint for bridge |
| CN105002800A (en) * | 2015-07-27 | 2015-10-28 | 福州市规划设计研究院 | Pavement overhaul method and structure for treating different lane road surfaces with large road condition differences |
| CN206692972U (en) * | 2017-01-12 | 2017-12-01 | 中路高科(北京)公路技术有限公司 | A kind of porous asphalt pavement structure for bus rapid transit track |
| CN206956484U (en) * | 2017-06-09 | 2018-02-02 | 河南省路嘉路桥股份有限公司 | Cement concrete pavement layering disease repairing structure |
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| CN108643037A (en) | 2018-10-12 |
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Address after: 510060 East seat, No. 348 East Ring Road, Guangzhou, Guangdong, Yuexiu District Applicant after: Guangzhou municipal engineering design and Research Institute Co., Ltd. Address before: 510060 3 building, East Municipal Services Building, Municipal Services Building, 348 East Road, Guangzhou, Guangdong. Applicant before: Guangzhou City Engineering Design studies total institute |
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