CN105839489B - Widening of Freeway engineering freeboard section new-old pavement splicing construction and construction method - Google Patents
Widening of Freeway engineering freeboard section new-old pavement splicing construction and construction method Download PDFInfo
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- CN105839489B CN105839489B CN201610330962.2A CN201610330962A CN105839489B CN 105839489 B CN105839489 B CN 105839489B CN 201610330962 A CN201610330962 A CN 201610330962A CN 105839489 B CN105839489 B CN 105839489B
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- 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
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
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- 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
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
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Abstract
The invention discloses Widening of Freeway engineering freeboard section new-old pavement splicing construction and construction method, for solving the problems, such as asphalt pavement structural layer damage caused by superelevation section new-old concrete bond splicing position impeded drainage in Widening of Freeway engineering.Scheme one is to set longitudinal rubble sewer in the new old asphalt concrete pavement stitching section in superelevation section position；Second, waterproof sealing is set between the basic unit that the wide structure sheaf of spelling is in contact with asphalt concrete pavement；Third, brushing one layer of heated bitumen with spelling wide side.It can prevent the water for spelling broad way section asphalt pavement structural layer from longitudinally penetrating into basic unit by waterproof sealing, by that can prevent the water for spelling broad way section asphalt pavement structural layer from laterally penetrating into old road surface structare layer with spelling wide position old road side brushing heated bitumen, longitudinally, laterally catchmented by setting longitudinal drainage sewer to collect splicing asphalt pavement structural layer, so as to effectively solve the problems, such as Widening of Freeway engineering freeboard section new-old pavement stitching portion water-induced distress.
Description
Technical field
The invention is related to the technical field of Widening of Freeway engineering new-old pavement splicing position water-induced distress preventing and treating, specifically
It is a kind of comprehensive solution for handling freeboard section new-old pavement splicing position water-induced distress problem that ground, which is said,.
Background technology
During highway reconstruction, splice the treatment measures comparative maturity at position for new-old concrete bond, but for
Splice the preventing and treating of position water-induced distress also without the control measures of a set of synthesis.
The material of wide position new-old pavement is spelled due to characteristic and the difference of index, it is easy to form straight joint.These straight joints are just
It is the important channel that road table water enters road surface structare layer, in non-superelevation section, typically by being oozed in curb end set draining
The longitudinal joint infiltration for splicing position and road surface are seeped water and are discharged to by crown slope outside pavement structure by ditch, but in superelevation
High side paragraph, due to setting reverse road camber, the water of road surface structare layer can not be discharged outside pavement structure, but is directly come together in new and old
The position of Pavement mosaic, time one are grown, and will cause the damage of new-old pavement splicing position pavement structure, then through after a while
The damage of view picture pavement structure will be caused, so as to cause huge economic loss.At present, it is common to splicing position both at home and abroad
Water-proofing treatment measure mainly has following several：
1st, draining sewer is set in roadbed top surface
Set longitudinal rubble french drain, setting spaced apart horizontal below the overlapping the slot for widening newly-built road roadbed top surface
To rubble french drain, new, old pavement structure sheaf overlap joint straight joint infiltration is set to be discharged by vertically and horizontally rubble french drain.
The shortcomings that measure is that express highway pavement splicing position typically all carries out digging step processing, and basic unit is typically all
Impermeable water-base, therefore infiltration is extremely difficult to roadbed top surface, therefore road surface inside the infiltration of Pavement mosaic longitudinal joint and road surface structare layer
Water inside structure sheaf can not smoothly draining, so as to collect in the splicing position of superelevation high side pavement structure, accelerate stitching section
The destruction of position road surface structare layer.
2. dense bitumen compound is set
Prevent from oozing under the table water of road by setting the surface layer of dense bitumen compound in superelevation high side.
The shortcomings that measure one is the infiltration for setting dense bitumen compound to prevent surface layer splicing longitudinal joint water；Second,
Intensive with asphalt is also relative closely knit of grading, and the water on road surface still can penetrate into road by the bituminous concrete of surface layer
Inside the structure sheaf of face, so as to still have the splicing position that substantial amounts of charge for remittance collects in superelevation high side pavement structure, accelerate splicing
The destruction of position road surface structare layer.
3. draining sealing is set
Draining sealing is set on structure sheaf by splicing position in new-old pavement, prevents that road surface from seeping water and splicing is vertical
Seam infiltration destroys road surface structare layer.Although the measure can guarantee that Lu Biao and splicing seams penetrate into road surface structare layer, but not
Infiltration can be discharged inside road surface structare layer, pavement structure stitching section bit length phase ponding can also aggravate the disease of pavement structure
Generation, eventually results in the destruction of pavement structure.
In consideration of it, in order to smoothly discharge the ponding at enlarging Highway Super-elevation high side road surface structare layer splicing position, prolong
The service life of long enlarging express highway pavement, reduces the maintenance cost on road surface after the completion of enlarging is built at a high speed, needs hair badly at present
A kind of bright Comprehensive Treatment measure for preventing Highway Super-elevation high side road surface structare layer splicing position water-induced distress.
The content of the invention
In order to solve the deficiencies in the prior art, the present invention, which provides a kind of superelevation road section surface of administering, prevents Highway Super-elevation height
The Comprehensive Treatment measure of side road surface structare layer splicing position water-induced distress, for solving enlarging Highway Super-elevation high side road surface knot
Caused by structure splicing position impeded drainage the problem of pavement destruction, so as to extend the service life of enlarging express highway pavement
Maintenance maintenance costs in the future is reduced simultaneously.
The technical solution adopted for the present invention to solve the technical problems is：
Widening of Freeway engineering freeboard section new-old pavement splicing construction, including old pavement and new road surface, wherein, road surface is certainly
Roadbed, underlayment, semi-rigid type base and surface layer are followed successively by down, and old road Mian Hexin road surfaces junction is spelling pace, its
It is characterised by, SBS modification heated bitumen coats is provided with pace spelling, are being spelled at pace in the semi-rigid type base on new road surface
Longitudinal rubble sewer that is longitudinally disposed and including longitudinal flexible porous tube is provided with, has backfill in longitudinal rubble sewer
Material, the bottom surface of the backfill material and two gussets set anti-filter geotextiles with composite geo-membrane, the top of the backfill material；In Xin Lu
The drainpipe that the gradient that transverse direction is set in the semi-rigid type base in face is 2% and outwards inclined downward is set, the drainpipe are inner
Penetrated with the flexible porous tube, the drainpipe outer end has protection network, and sprinkling is dispensed on the semi-rigid type base on new road surface
Priming oil and waterproof sealing.
Widening of Freeway engineering freeboard section new-old pavement concatenation construction method：Characterized in that, order carries out following walk
Suddenly：
Step 1, made on old road and spell pace, the spelling pace is from bottom to top along roadbed, underlayment, semi-rigid
Basic unit and surface layer expansion, then first clear up the joint face for spelling pace in old road, are modified heated bitumen using SBS after cleaning out and adopt
To be brushed with cold connecting method to spelling the new and old facing joint at pace surface, brushing amount is carried out by 0.3~0.5kg/m2,
Interfacial agents brushing is uniform, then carries out the laying of underlayment and semi-rigid type base；
Step 2, sprinkling priming oil is dispensed on the semi-rigid type base newly laid, wherein, the priming oil uses splits breast slowly
Change pitch, the residuals content in emulsified asphalt must not be less than 50%, and spread quantity is controlled in 1.0-1.5L/m2, the priming oil
After the 3 days and below construction waterproof sealing before layer making of spread, wherein, the waterproof sealing is to be modified heated bitumen and pre- by SBS
Mix rubble mixing composition；
Step 3, waterproof sealing after setting completed, set in new, old pavement splicing position underlayment position and include longitudinal direction
Longitudinal rubble sewer of flexible porous tube, the backfill material in longitudinal rubble sewer are made up of the open gradation rubble without fines, returned
With composite geo-membrane, the top for backfilling material sets anti-filter geotextiles for the bottom surface of filler and two gussets；
Step 4, transversely slotted in semi-rigid type base top surface, fluting longitudinal slope is 2%, the horizontal draining of interior setting of slotting
Pipe, drainpipe is inner to be penetrated with longitudinal flexible porous tube, and drainpipe outer end has protection network；And after drainpipe is set up,
The fluting of Semi-rigid concrete basic unit is with the top of C20 concrete backfills to semi-rigid type base, and fill concrete should be layered tamping, often
Thickness degree cannot be greater than 20cm；
Step 5, finally carry out the laying of new surface layer.
Further, in step 2, road pavement is answered to be cleaned before construction waterproof sealing, then spread SBS is modified heat
Pitch, spread quantity 1.2kg/m2To 1.4kg/m2, then 5mm is dispensed to the premixed macadam that 10mm asphalt contents are 0.4%, spread
Measure as 6-8m3/1000m2。
Further, the groove width is generally 14cm, and the drainpipe is the PVC-U drainpipes of diameter 8cm specifications.
Further, the protection network is galvanized wire mesh.
Further, the top width of longitudinal rubble sewer is not less than 30cm.
Further, composite geo-membrane model 0M0.3 (TCC6-M0.3)/(PET-PE), it is geomembrane, weight
300g/m2, thickness 0.3mm.
Further, the anti-filter geotextiles model FNG-PET-150, weight 150g/m2, equivalent aperture 095≤ 0.21mm,
Infiltration coefficient >=0.1cm/s, gradient ratio≤3.
Further, the setting spacing of the drainpipe is between 10m~20m.
Beneficial effect is：
It can prevent the water for spelling broad way section asphalt pavement structural layer from longitudinally penetrating into road by waterproof sealing between surface layer and basic unit
Bed basic unit, by that can prevent that the water for spelling broad way section asphalt pavement structural layer is horizontal with spelling wide position old road side brushing heated bitumen
To old road surface structare layer is penetrated into, longitudinally, laterally converged by setting longitudinal drainage sewer to collect splicing asphalt pavement structural layer
Water, water can be discharged by spaced transverse drain outside road surface structare layer.Therefore, the comprehensive of this several measure is passed through
Application is closed, can effectively discharge and come together in the charge for remittance that superelevation high side pavement structure spells wide position, so as to effectively solve at a high speed
The problem of highway extension project freeboard section new-old pavement stitching portion water-induced distress.The longevity is used so as to reach extension pavement structure
Life, reduce the maintenance costs after road is built up.
Accompanying drawing
Fig. 1 excavation superelevation stitching section road surface structare layer drainage plan.
Fig. 2 embankment superelevation stitching section road surface structare layer drainage plan.
Fig. 3 is splicing position drawing.
Fig. 4 is I--I sectional schematic diagrams.
Fig. 5 is longitudinal rubble sewer section full-page proof.
Fig. 6 is one of work progress.
Fig. 7 is the two of work progress.
Fig. 8 is the three of work progress.
Fig. 9 is the four of work progress.
In figure, A roadbeds, B underlayments, C semi-rigid type bases, D surface layers, 1 spells pace, 11 binding materials and waterproof material, and 21
Priming oil, 22 waterproof sealings, 3 longitudinal rubble sewers, 31 backfill material, 32 composite geo-membranes, 33 anti-filter geotextiles, 34 longitudinal directions are soft
Water-permeable pipe, 41 drainpipes, 42 protection networks.
Embodiment
Widening of Freeway engineering superelevation high side spells broad way road section surface structure sheaf draining description：Widening of Freeway engineering is new
It is difficult to solve the problems, such as that the draining that old pavement spells wide position, which is always one, due to the difference of new-old pavement structural material property,
Longitudinal straight joint often is formed at the wide position of spelling, simultaneously because the particular design of the road camber of superelevation high side, makes inside pavement structure
The infiltration of road table all come together in new-old concrete bond convergence part, if the position drainage measure sets improper, scheme is unreasonable, it is easy to makes
Into broad way face large area water-induced distress is spelled, the performance and service life of pavement of road are most substantially reduced at last.
It is of the present invention spell broad way section water-induced distress aggregate measures it is main through the following steps that being implemented：
1st, made on old road and spell pace 1, step is from bottom to top along roadbed A, underlayment B, semi-rigid type base C and surface layer
D deploys, and first clears up the joint face for spelling pace in old road, is not allow for loosening and throws gathering materials of dissipating, accomplishes free from dust, pollution-free,
Should not there are the interlayer and debris that upper strata stays on step surface.
Use SBS to be modified binding material and waterproof material 11 of the heated bitumen as new and old facing joint after cleaning out, and adopt
Brushed with cold connecting method to spelling the new and old facing joint at pace surface, brushing amount presses 0.3~0.5kg/m2Carry out,
Interfacial agents brushing is uniform, with reference to figure 6.
Then the laying of underlayment and semi-rigid type base is carried out；With reference to figure 7.
2nd, on the semi-rigid type base newly laid on first dispense sprinkling priming oil 21, then waterproof sealing 22 is set again, its
In.Priming oil uses slow-breaking emulsified asphalt, and the residuals content in emulsified asphalt must not be less than 50%, and spread quantity is controlled in 1.0-
1.5L/m2 (determines) after examination is spilt, after the 3 days and below construction waterproof sealing before layer making of priming oil spread.Wherein, waterproof
Sealing 22 is modified heated bitumen by SBS and premixed macadam (limestone) forms, and answers road pavement to be cleaned before construction waterproof sealing,
Then spread SBS is modified heated bitumen, spread quantity 1.2-1.4kg/m2(being determined after examination is spilt), then dispense 5-10mm pitches use
Measure the premixed macadam (limestone) for 0.4%, spread quantity 6-8m3/1000m2(spreading determination through examination), with reference to figure 7.
3rd, after setting completed, it is soft that the base layer position setting at new-old pavement splicing position includes longitudinal direction to waterproof sealing 22
Longitudinal rubble sewer 3 of water pipe 34, wherein, the size of longitudinal rubble sewer should be according to charge for remittance amount concrete decision, but from conveniently applying
The angle of work, the top width in gutter are not less than 30cm, and thickness is equal with groundwork thickness W.Backfill material 31 in ditch is by without fines
Open gradation rubble composition, the bottom surface of backfill material 31 and two gussets are with composite geo-membrane 32, to prevent surface layer structure and splicing vertical
The fine grained soil of seam penetrates into water and blocks backfill material hole or drainpipe pipe sky.
Anti-filter geotextiles 33 are set at the top of longitudinal rubble sewer, with reference to figure 7.
4 and then transversely slotted in semi-rigid type base top surface, fluting longitudinal slope is generally 2%, and groove width is generally
14cm, and D8 transverse direction PVC-U drainpipes 41 are set in fluting, drainpipe 41 is inner to be penetrated with longitudinal soft rock water-permeable pipe 34, row
Water pipe outer end has protection network 42, after drainpipe is set up, the fluting of Semi-rigid concrete basic unit with C20 concrete backfills extremely
At the top of semi-rigid type base, fill concrete should be layered tamping, and 20cm is cannot be greater than per thickness degree.Semi-rigid type base top surface need to be by one
Fixed longitudinal slope fluting, fluting longitudinal slope sets the larger water for being advantageous to longitudinal sewer quickly to discharge, but can hold semi-rigid type base
Groove depth is too deep, uneconomical；Longitudinal slope setting of slotting is too small, although semi-rigid type base digging is deep to be unfavorable for longitudinal sewer water
Discharge.Therefore, economy and feature are considered, semi-rigid type base fluting longitudinal slope is generally 2%, and groove width is generally
14cm.D8 transverse direction PVC-U drainpipes are set in box cut, and after drainpipe is set up, the fluting of Semi-rigid concrete basic unit is used
At the top of C20 concrete backfills to semi-rigid type base, fill concrete should be layered tamping, and 20cm is cannot be greater than per thickness degree.Laterally
The end application galvanized wire mesh of drainpipe covers, and forms protection network, prevents debris from entering, plant intrusion or rodent are built
Nest, transverse drain is blocked, influences drain function.
5, finally carry out the laying of new surface layer.
The structure that the new-old pavement ultimately formed combines is as follows:
Longitudinal rubble sewer is set in the semi-rigid type base at Highway Super-elevation high side road surface structare layer splicing position, and
Anti-filter geotextiles are being set at the top of rubble sewer, and surrounding wraps up composite geo-membrane.
Longitudinal flexible porous tube is set inside longitudinal rubble sewer, and specification is D8 flexible porous tubes, and spaced apart
Set horizontal pvc-u to manage, give the water inside longitudinal sewer to discharge path face structure sheaf by drainpipe.
Inside longitudinal rubble sewer rubble be there is certain grading requirement can be with the rubble of draining.
The composite geo-membrane model 0M0.3 of longitudinal rubble sewer peripheral (on side and the face of lower surface three) parcel
(TCC6-M0.3)/(PET-PE), it is geomembrane, weight 300g/m2, thickness 0.3mm, composite geo-membrane can be prevented in sewer
The water in portion is immersed to the basic unit being in contact with it, and destroys basic unit.
The anti-worry geotextiles laid at the top of longitudinal rubble sewer, the anti-filter geotextiles model FNG-PET- of its middle and upper part
150, weight 150g/m2, equivalent aperture 095≤ 0.21mm, infiltration coefficient >=0.1cm/s, gradient ratio≤3, anti-filter geotextiles can make
The water of top course smoothly flows into sewer, while can prevent fine grained soil from penetrating into sewer so as to block the vertical of sewer influence sewer
To drain function.
Composite geo-membrane and anti-filter geotextiles have organized a structure for preventing infiltration jointly, because express highway pavement spells width
Width is different, therefore charge for remittance amount of the superelevation high side road surface structare layer at splicing position is also different, therefore the height of longitudinal drainage sewer
The spacing of degree and drainpipe can be adjusted according to specific charge for remittance amount, and the height of draining sewer is generally the thickness W of basic unit,
The setting spacing of drainpipe is typically between 10~20m.
The basic unit top that wide section is spelled in Highway Super-elevation high side sets waterproof sealing, and waterproof sealing should be in priming oil spread
Constructed after 3 days and below before layer making, answer road pavement to be cleaned before construction, then spread SBS is modified heated bitumen, spread quantity
For 1.2-1.4kg/m2(being determined after examination is spilt), then the premixed macadam (limestone) that 5-10mm asphalt contents are 0.4% is dispensed,
Spread quantity is 6-8m3/1000m2(spreading determination through examination).The setting of draining sealing can prevent the underwater of pavement surface structure from oozing, and lead to
Superelevation horizontal slope is crossed, the water of pavement surface structure is all come together in into Pavement mosaic position, is advantageous to longitudinal drainage sewer pavement structure
The collection of the internal infiltration of layer.
One layer of heated bitumen is brushed in structure sheaf side at the new and old facing joint of Highway Super-elevation high side, and heated bitumen uses
SBS is modified, and brushing amount presses 0.3~0.5kg/m2Carry out, on the one hand brushing heated bitumen can make the old and new's asphalt pavement structural layer more preferable
Combination, the water that on the other hand can prevent from spelling wide road section surface structure sheaf laterally penetrates into the road surface structare layer of old road, is advantageous to
The collection of infiltration inside longitudinal drainage sewer road surface structare layer.
Claims (9)
1. Widening of Freeway engineering freeboard section new-old pavement splicing construction, including old pavement and new road surface, wherein, road surface is under
Roadbed, underlayment, semi-rigid type base and surface layer are followed successively by and, and old road Mian Hexin road surfaces junction is spells pace, it is special
Sign is that being provided with SBS in the spelling pace lap-joint is modified heated bitumen coat, and new road surface is semi-rigid at spelling pace
Longitudinal rubble sewer that is longitudinally disposed and including longitudinal flexible porous tube is provided with basic unit, in longitudinal rubble sewer
There is backfill to expect, the bottom surface of the backfill material and two gussets set anti-filter geotextiles with composite geo-membrane, the top of the backfill material；
The horizontal gradient is set in the semi-rigid type base on new road surface for 2% and the drainpipe of outside inclined downward setting, the draining
Pipe is inner to be penetrated with the flexible porous tube, and the drainpipe outer end has protection network, spread on the semi-rigid type base on new road surface
Cloth sprays priming oil and waterproof sealing.
2. the construction method of the Widening of Freeway engineering freeboard section new-old pavement splicing construction described in claim 1：Its feature
It is, sequentially follows the steps below：
Step 1, made on old pavement and spell pace, the spelling pace is from bottom to top along roadbed, underlayment, semi-rigid base
Layer and surface layer expansion, then first clear up the joint face that old pavement spells pace, are modified heated bitumen using SBS after cleaning out and adopt
To be brushed with cold connecting method to spelling the new and old facing joint at pace surface, brushing amount is carried out by 0.3~0.5kg/m2,
Interfacial agents brushing is uniform, then carries out the laying of underlayment and semi-rigid type base；
Step 2, sprinkling priming oil is dispensed on the semi-rigid type base newly laid, wherein, the priming oil splits emulsification drip using slow
Green grass or young crops, the residuals content in emulsified asphalt must not be less than 50%, and spread quantity is controlled in 1.0-1.5L/m2, the priming oil spread 3
After it and below construction waterproof sealing before layer making, wherein, the waterproof sealing is to be modified heated bitumen and premixed macadam by SBS
Mixing composition；
Step 3, it is soft that waterproof sealing includes longitudinal direction after setting completed, in new, old pavement splicing position underlayment position setting
Longitudinal rubble sewer of water-permeable pipe, the backfill material in longitudinal rubble sewer are made up of the open gradation rubble without fines, backfill material
Bottom surface and two gussets with composite geo-membrane, the top for backfilling material sets anti-filter geotextiles；
Step 4, transversely slotted in semi-rigid type base top surface, fluting longitudinal slope is 2%, the horizontal drainpipe of interior setting of slotting, row
Water pipe is inner to be penetrated with longitudinal flexible porous tube, and drainpipe outer end has protection network；And after drainpipe is set up, it is semi-rigid
The fluting of concrete base layer is with the top of C20 concrete backfills to semi-rigid type base, and fill concrete should be layered tamping, per thickness degree
It cannot be greater than 20cm；
Step 5, finally carry out the laying of new surface layer.
3. construction method according to claim 2, it is characterised in that in step 2, should be satisfied the need before construction waterproof sealing
Face is cleaned, and then spread SBS is modified heated bitumen, spread quantity 1.2kg/m2To 1.4kg/m2, then dispense 5mm to 10mm drips
Blue or green dosage be 0.4% premixed macadam, spread quantity 6-8m3/1000m2。
4. construction method according to claim 2, it is characterised in that the groove width is generally 14cm, the draining
Manage as the PVC-U drainpipes of diameter 8cm specifications.
5. construction method according to claim 2, it is characterised in that the protection network is galvanized wire mesh.
6. construction method according to claim 2, it is characterised in that the top width of longitudinal rubble sewer is not less than
30cm。
7. construction method according to claim 2, it is characterised in that the composite geo-membrane model 0M0.3 (TCC6-
M0.3)/(PET-PE), it is geomembrane, weight 300g/m2, thickness 0.3mm.
8. construction method according to claim 2, it is characterised in that the anti-filter geotextiles model FNG-PET-150,
Weight 150g/m2, equivalent aperture 095≤ 0.21mm, infiltration coefficient >=0.1cm/s, gradient ratio≤3.
9. construction method according to claim 2, it is characterised in that the setting spacing of the drainpipe 10m~20m it
Between.
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| CN106758644A (en) * | 2017-01-22 | 2017-05-31 | 苏谦 | Light-weight foamed concrete road surface structure and its construction method |
| CN107740323B (en) * | 2017-11-02 | 2019-01-18 | 中海外交通建设有限公司 | Semi-rigid and semi-flexible highway extension splicing structure and construction method |
| CN108457150A (en) * | 2018-03-21 | 2018-08-28 | 中国冶集团有限公司 | A kind of road widening project anticracking crack structure and its construction method |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
| CN110258238A (en) * | 2019-05-09 | 2019-09-20 | 昆山市交通航务工程有限公司 | A kind of laying method of new-old concrete bond intersection |
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| CN110700036A (en) * | 2019-10-18 | 2020-01-17 | 齐钊 | New old road surface mosaic structure of super high section of highway extension project |
| CN114395954B (en) * | 2021-12-31 | 2023-08-01 | 池州市交通规划设计院 | Highway super-high section new and old pavement splicing structure and construction method |
| CN114960900B (en) * | 2022-08-01 | 2022-11-01 | 四川省亚通工程咨询有限公司 | Drainage pipeline for highway reconstruction and extension project |
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| CN201089875Y (en) * | 2007-09-28 | 2008-07-23 | 天津市赛英工程建设咨询管理有限公司 | Pavement structure of concrete new-old pavement anastomosis part for broadening road |
| JP5086917B2 (en) * | 2008-06-26 | 2012-11-28 | 姫路市 | Repair method for asphalt pavement |
| CN103741569B (en) * | 2013-12-18 | 2016-08-17 | 山东省交通科学研究院 | A kind of old road based on drainage crack resistance enlarging splicing construction and method |
| CN105178132B (en) * | 2015-07-27 | 2017-07-07 | 福州市规划设计研究院 | A kind of solution road surface overlays the method and structure of preceding hard and soft overlap joint |
| CN105256876A (en) * | 2015-10-14 | 2016-01-20 | 山东省交通规划设计院 | Siphon type draining system of superhigh excavation section of road |
| CN205711612U (en) * | 2016-05-18 | 2016-11-23 | 山东省交通规划设计院 | Widening of Freeway engineering freeboard section new-old pavement splicing construction |
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