CN107227667A - A kind of Asphalt Pavement with Flexible Base splices Widening Construction method - Google Patents
A kind of Asphalt Pavement with Flexible Base splices Widening Construction method Download PDFInfo
- Publication number
- CN107227667A CN107227667A CN201710467073.5A CN201710467073A CN107227667A CN 107227667 A CN107227667 A CN 107227667A CN 201710467073 A CN201710467073 A CN 201710467073A CN 107227667 A CN107227667 A CN 107227667A
- Authority
- CN
- China
- Prior art keywords
- road
- new
- old
- layer
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- E01C11/16—Reinforcements
- E01C11/165—Reinforcements particularly for bituminous or rubber- or plastic-bound 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
- E01C7/32—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
Splice Widening Construction method the present invention relates to a kind of Asphalt Pavement with Flexible Base, it is characterised in that the first old road road surface structare layer of milling, connection step is set at old line structure bed boundary；Then the roadbed outer edge respectively one roadbed solidification beam of setting, and one layer of bar-mat reinforcement grid is laid in roadbed solidification top surface of the beam widened seam, widen road surface is spliced on old road；Material after the other structures floor milling of old pavement structure Ceng Hejiu roads road surface is used in new base course；In two-ash broken stones regeneration layer top surface laying layer of glass fiber GSZ during construction, connection grid and joint filling slurry are set in new-old pavement seam crossing, the Pavement mosaic of layer top surface below widens seam crossing and lays a crack partition panel；The last construction while the road surface for carrying out new-old pavement paves.The present invention can not only realize the recycling of old road construction material, and can strengthen the globality that bituminous paving splices widened structure, can also reduce the late maintaining expense on road surface.
Description
Technical field
Splice Widening Construction method the present invention relates to a kind of Asphalt Pavement with Flexible Base, more particularly to one kind can effectively strengthen
The globality of bituminous paving splicing widened structure, the flexbile base drip for reducing the late maintaining expense on road surface, protecting social environment
Blue or green Pavement mosaic Widening Construction method.Belong to field of road, it is adaptable to high-grade highway, arterial street flexbile base pitch
Concrete Pavement Reconstruction.
Background technology
With the fast development of China's economy, many origin roads can not meet growing vehicle pass-through need
Ask so that main flow of the highway widening into China's highway construction at this stage.Asphalt Pavement with Flexible Base is in China Higher level highway
In obtained more universal engineer applied, but in Asphalt Pavement with Flexible Base splicing widening project, easily in new-old pavement structure
Seam crossing is cracking, deformation, the low engineering problem of bearing capacity, meanwhile, how old pipeline material reuses, reduces
Environmental pollution is also the Practical Project problem for needing in highway upgrading engineering to solve.
At present, in Asphalt Pavement with Flexible Base splicing widening project, generally add using setting seam step, in seam crossing
The measures such as muscle, optimization structure sheaf combination carry out the road engineering disease being likely to occur after the splicing of prevention and control Asphalt Pavement with Flexible Base is widened
Evil.There is analysis to find, though existing Asphalt Pavement with Flexible Base splicing widened structure and construction method are in suitable engineering-environment
Under the conditions of achieve ideal construction quality, but require that high, built environment is complicated, construction quality control for road-ability
The big Asphalt Pavement with Flexible Base reconstruction and extension project of difficulty processed, still seam differential deformation is effectively controlled, roadbed bearing capacity is carried
The problems such as liter, old pipeline material are reused needs to solve.
In consideration of it, be that effectively enhancing bituminous paving splices the globality of widened structure, reduces the late maintaining expense on road surface,
Destruction of the engineering construction to social environment is reduced, urgently invention one kind can strengthen Pavement mosaic structural integrity, quickly apply at present
Work, the Asphalt Pavement with Flexible Base splicing Widening Construction method of energy-conserving and environment-protective.
The content of the invention
It is an object of the invention to provide a kind of rational in infrastructure, construction technology is simple, economic results in society are protruded, and can had
The Asphalt Pavement with Flexible Base splicing Widening Construction method of effect reduction environmental pollution.
In order to realize above-mentioned technical purpose, present invention employs following technical scheme.
A kind of Asphalt Pavement with Flexible Base splices Widening Construction method, including following construction procedure：
(1) preparation of construction：The linear index and bearing capacity index of roadbed are tested, old road earth shoulder and curb is removed
The overburden soil of side slope, gets all the pavement construction material needed for pavement structure construction ready, and construction device therefor is demarcated and performance
Detection；
(2) old pavement structure sheaf milling：Old road upper layer on the inside of old road side trip is excluded, surface layer and following road in old road
Face structure sheaf is continued to employ；, need to be according to the layer of the splicing new pavement structure in widened region in the old road of milling during the following road surface structare layer of surface layer
Thickness is required, step is connected in old road road surface structare layer interface milling；
(3) new subgrade strengthening：Required according to compatibility of deformation, carry out the new road roadbed filling construction of splicing widened region；Edge
Road longitudinal direction, sets a roadbed to solidify beam, in Xin Lu on the old road roadbed of new sub-base road and old sub-base road seam crossing
Set a roadbed to solidify beam at the outer ledge of roadbed, and one layer of bar-mat reinforcement grid is laid in roadbed solidification top surface of the beam；By steel
Reinforced net grid are welded to connect with default dowel in roadbed solidification beam；Anchor connection is followed closely by " U " snap riveting with roadbed filler.
(4) new sub-base road splicing is widened：Into old road in the milling material of surface layer, old road cutting optimal and old base course
The cement of incorporation 1%~2%, forms new sub-base road compound, live decking and rolling forms new sub-base road through job mix；
(5) new base course splicing is widened：Bottom-up new road graded broken stone floor, the new road asphalt-regenerating of carrying out successively is using material
Basic unit, new road dense bitumen stabilized macadam base pave construction；When new road graded broken stone floor is constructed, first in new sub-base road
Top surface lays layer of glass fiber GSZ, Bing Xin roads graded broken stone floor laid inside grouting behind shaft or drift lining pipe；Drip is set at splicing seams
Blue or green cementation of fissures body, and the laying connection grid at the top of splicing seams；Old road upper layer milling material is used as new road pitch again after regeneration
Make profits materials basic unit；
(6) new road sealing construction：Needed before new road sealing construction first with unhairing machine by new road dense bitumen stabilization gravel base
Layer surface feather plucking, and dust is removed, then surface clean, drying are carried out, carry out sealing construction under conditions of holding surface moistening；
New road sealing is constructed using thin overlay method, and width is with new road pitch cutting optimal width；Pitch is set at surface layer splicing seams
Cementation of fissures body, and the laying connection grid at the top of splicing seams；
(7) surface layer splicing is widened in new road pitch cutting optimal, new road pitch：It is bottom-up to carry out successively below new road pitch
In floor, new road pitch surface layer splice Widening Construction, after the completion of new road pitch cutting optimal paves, new road pitch cutting optimal with it is old
The seam crossing of road cutting optimal longitudinally lays a crack partition panel along seam；
(8) road surface paves：The debris of surface layer upper surface in surface layer and old road in new road pitch is first removed, then new
The upper surface of surface layer dispenses a floor priming oil, seam crossing and sets up a floor sticking layer oil in surface layer and old road in the pitch of road, then new
Surface layer upper surface paving concrete pavement upper layer simultaneously in surface layer and old road in the pitch of road.
Step (3) roadbed solidification beam is solidified using the cement binding material bed fillers that satisfy the need, and roadbed solidifies beam width
For 1m~4m, depth 0.2m~0.3m；Dowel is inserted in roadbed solidification beam, and connecting bend is set in dowel end.
The surface of step (7) the crack partition panel sets connecting groove, the width on new-old pavement cutting optimal splicing seams both sides
Spend and be not less than 20cm, longitudinal lap joint length >=50cm, in crack, antirust treatment is done on the surface of partition panel.
In step (3), step (4), step (5), step (7), step (8) construction, outside longitudinal direction tight-wire walking is to design
The steel wire reference plane of high each road surface structare layer of process control, with horizontal slope instrument cross fall；Roll should follow closely follow, pressure, high frequency, low slowly
The principle of width is carried out, when using more than Liang Tai and two construction with paving machine, and should longitudinally stagger the vertical of 4m~8m between paver
To distance.
Step (5) the grouting behind shaft or drift lining pipe uses rubber tube or steel pipe, and sealing headkerchief is set in the buried section end of grouting behind shaft or drift lining pipe,
Section of stretching out end sets Grouting Pipe linkage section, and side wall is spaced 0.2m~0.5m and sets a plasma discharge liquid bleeding holes along its length.
In step (4) the new road pitch cutting optimal, new road pitch surface layer be respectively adopted close-graded modified pitch cutting optimal,
Surface layer in close-graded modified pitch；Road surface is using pitch horseshoe matter stabilization gravel layer.
The characteristics of present invention has following and beneficial effect：
(1) widening two roadbeds solidification beams of area's roadbed top surface setting, and one layer of reinforcing bar is laid in roadbed solidification top surface of the beam
Grid gate layer, two-ash broken stones regeneration layer top surface lay layer of glass fiber GSZ, formed road surface bottom carrier layer, prevent
There is inhomogeneous deformation in pavement structure bottom.
(2) former sub-surface and upper layer milling material are handled by adding appropriate binding material, used respectively
The two-ash broken stones regeneration layer and asphalt-regenerating widened in Asphalt Pavement with Flexible Base splicing in road surface structare layer utilize the bed of material,
On the basis of structure sheaf bearing capacity is ensured, the recycling of old road milling material is realized.
(3) Pavement mosaic of layer top surface widens seam crossing and lays a crack partition panel below, and by crack partition panel
Both sides be anchored in respectively below new-old pavement structure on layer, so that " line load " at new-old pavement surface layer splicing seams be converted
For " area load " with one fixed width, the tension stress that crack is reflected upwards is effectively reduced.
(4) the default grouting behind shaft or drift lining pipe in graded broken stone layer, after road puts into effect, can become according to the difference of new-old pavement
Shape situation, and Pavement mosaic widened region bearing characters, to splice widened region sub-surface carry out grouting behind shaft or drift lining so that
Realize road pavement later stage bearing capacity and the dynamic control of deformation rule.
Brief description of the drawings
Fig. 1 is a kind of Asphalt Pavement with Flexible Base splicing widened structure schematic diagram of the invention；
Fig. 2 is Fig. 1 cracks partition panel floor map；
Fig. 3 is Fig. 1 grouting behind shaft or drift lining pipe diagrammatic cross-sections；
Fig. 4 is that Qian Jiu roads cross-sectional view is widened in the splicing of Fig. 1 Asphalt Pavement with Flexible Base；
Fig. 5 is a kind of Asphalt Pavement with Flexible Base splicing Widening Construction schematic flow sheet of the invention.
In figure：The old road upper layers of 1-；Surface layer in the old roads of 2-；The old road cutting optimals of 3-；The old base courses of 4-；The old sub-base roads of 5-；
6- connection steps；The old road roadbeds of 7-；The new road roadbeds of 8-；9- roadbeds solidify beam；10- bar-mat reinforcement grids；11- dowels；12-“U”
Snap riveting is followed closely；The new sub-base roads of 13-；The new road graded broken stone floor of 14-；The new road asphalt-regeneratings of 15-, which are utilized, expects basic unit；The new road levels of confidentiality of 16-
With Asphalt Stabilized Crushed Stone Basement；17- Glass Fibre Earth Grids；18- grouting behind shaft or drift lining pipes；19- pitch cementation of fissures bodies；20- connection grids；21-
New road sealing；The new road pitch cutting optimals of 22-；Surface layer in the new road pitches of 23-；24- cracks partition panel；25- road surfaces；26-
Connecting bend；27- connecting bolts；28- connecting grooves；29- connecting bolts pass through hole；30- seals headkerchief；31- Grouting Pipes are connected
Section；32- slurries bleeding holes；33- original embankments sideline.
Embodiment
Each road surface structare layer mix-design process, road surface structare layer decking and rolling construction technology will in present embodiment
Ask, new road roadbed design and construction technical requirement, crack partition panel make and installation Technology requirement, pitch cementation of fissures body construction
Repeated no more in the present embodiment such as technical requirements, emphasis illustrates that the present invention relates to the embodiment of construction method.
Fig. 1 is a kind of Asphalt Pavement with Flexible Base splicing widened structure schematic diagram of the invention, and Fig. 2 is Fig. 1 cracks partition panel
Floor map, Fig. 3 is Fig. 1 grouting behind shaft or drift lining pipe diagrammatic cross-sections, and Fig. 4 is that Qian Jiulu is widened in the splicing of Fig. 1 Asphalt Pavement with Flexible Base
Cross-sectional view, Fig. 5 is a kind of Asphalt Pavement with Flexible Base splicing Widening Construction schematic flow sheet of the invention.1~Fig. 4 of reference picture institutes
Show, including new road roadbed 8, new sub-base road 13, new road level the present invention relates to Asphalt Pavement with Flexible Base splicing widened structure matches somebody with somebody
Metalling 14, new road asphalt-regenerating, which are utilized, expects basic unit 15, new road dense bitumen stabilized macadam base 16, new road pitch cutting optimal
22nd, surface layer 2, old road cutting optimal 3, old base course in surface layer 23, road surface 25, old road upper layer 1, old road in new road pitch
4th, old sub-base road 5 and old road roadbed 7；To old road Mian Jiu roads upper layer 1, and surface layer 2 in splicing widened region Nei Jiu roads,
After old road cutting optimal 3, old base course 4, the milling of old sub-base road 5, two are set in the top surface of old road roadbed 7 and Xin Lu roadbeds 8
Roadbed solidifies beam 9, and lays one layer of bar-mat reinforcement grid 10 in roadbed solidification beam 9 top surface；Preset in new road graded broken stone floor 14
Grouting behind shaft or drift lining pipe 18, layer bottom laying Glass Fibre Earth Grid 17；Widen and connect in the splicing of new road pitch cutting optimal 22 and old road cutting optimal 3
Stitch top surface and lay a crack partition panel 24.
4cm thickness SMA13 asphalts, 6cm is respectively adopted in surface layer 2 and old road cutting optimal 3 in old road upper layer 1, old road
Thick AC25I types asphalt and 6cm thickness AC25II type asphalts.
The thick lime-fly ash aggregate bases of 22cm and the thick Lime-soil subbases of 38cm is respectively adopted in old base course 4 and old sub-base road 5.
In old road road surface structare layer interface, along the longitudinally disposed connection step 6 of road, connect step 6 thickness and this
The old road road surface structare layer thickness of rank correspondence is identical, and width is 50cm-100cm.
Old road roadbed 7 and Xin Lu roadbeds 8 are formed using sandy soil compacting, and compactness is 96%.
Roadbed solidification beam 9 is solidified using cement binding material to the roadbed filler of old road roadbed 7 and Xin Lu roadbeds 8, road
Bed solidification beam width is 2m, depth 0.2m；
Bar-mat reinforcement grid 10 is made of diameter 6mm plain steel-bar, and vertically and horizontally spacing is 300mm to reinforcing bar.
Dowel 11 is using diameter 25mm spiral, and dowel 11 is in advance inside embedment roadbed solidification beam 9, and embedment is deep
Degree is not less than 20cm.
" U " snap riveting nail 12 uses the U-shaped nail of electrogalvanizing of Q195 materials.
New sub-base road 13, new road graded broken stone floor 14, new road asphalt-regenerating, which are utilized, expects basic unit 15 and the drip of Xin Lu close-gradeds
The thick two-ash broken stones regeneration material basic units of 12cm, the thick graded broken stones of 18cm, 10cm thickness drips is respectively adopted in blue or green stabilized macadam base 16
Blue or green regeneration material basic unit and 10cm thickness LSM25.
Glass Fibre Earth Grid 17 and connection grid 20 use glass fiber grid material, and glass fiber grid technical requirements for materials is referring to table
1。
The glass fiber grid technical requirements for materials of table 1
Grouting behind shaft or drift lining pipe 18 uses diameter 60mm zinc-plated stainless steel tube.
The splicing seams that 19 pairs of pitch cementation of fissures body is less than or equal to 5mm fill emulsified asphalt, and c. fills heat drip to the splicing seams more than 5mm
It is blue or green.
New road sealing 21 is 0.5kg/m2Asphalt content sprinkling permeable layers emulsified asphalt layer.
8cm thickness SUP25 and 8cm thickness SUP20 is respectively adopted in surface layer 23 in new road pitch cutting optimal 22 and Xin Lu pitches.
Crack partition panel 24 is using thickness 6mm, strength grade Q235, width 50cm steel plate.
Road surface 25 is using SMA13 thick 4cm.
Connecting bend 26 is using diameter 25mm spiral, long 30mm.
Connecting bolt 27 uses diameter 16mm stainless steel chemical anchor bolts.
Connecting groove 28 is pressed into wide 50mm, long 500mm, depth 1mm groove type on crack partition panel 24.
Connecting bolt passes through the bolt aperture in hole 29 to be 18mm.
Sealing headkerchief 30 is formed using stainless steel is prefabricated, is welded to connect with grouting behind shaft or drift lining pipe 18.
Grouting Pipe linkage section 31 uses diameter 60mm flexible pipe.
Slurries bleeding holes 32 is set along the side wall cloth of grouting behind shaft or drift lining pipe 18, spacing 300mm, aperture 10mm.
The gradient in former embankment sideline 33 is 1：1.
Fig. 5 is a kind of Asphalt Pavement with Flexible Base splicing Widening Construction schematic flow sheet of the invention, soft shown in reference picture 5
Property Base Asphalt Pavement splicing Widening Construction step it is as follows：
(1) preparation of construction：The linear index and bearing capacity index of roadbed are tested, old road earth shoulder and curb is removed
The overburden soil of side slope, gets all the pavement construction material needed for pavement structure construction ready, and construction device therefor is demarcated and performance
Detection；
(2) old pavement structure sheaf milling：Old road upper layer 1 on the inside of old road side trip is excluded, surface layer 2 and following in old road
Road surface structare layer is continued to employ；Surface layer, need to be according to the splicing new pavement structure in widened region below 2 during road surface structare layer in the old road of milling
Thickness requirement, step 6 is connected in old road road surface structare layer interface milling；
(3) new subgrade strengthening：Required according to compatibility of deformation, carry out the new road roadbed filling construction of splicing widened region；Edge
Road longitudinal direction, sets a roadbed to solidify beam 9 on the old road roadbed 7 of new sub-base road 13 and the old seam crossing of sub-base road 5,
Set a roadbed to solidify beam 9 at the outer ledge of new road roadbed 8, and one layer of steel grid is laid in roadbed solidification beam 9 top surface
Grid 10；Bar-mat reinforcement grid 10 is welded to connect with default dowel 11 in roadbed solidification beam 9；Pass through " U " type with roadbed filler
The anchor connection of rivet 12.
(4) new sub-base road splicing is widened：The milling material of surface layer 2, old road cutting optimal 3 and old base course 4 into old road
The cement of incorporation 1%~2%, forms the new compound of sub-base road 13, live decking and rolling forms new road through job mix in material
Underlayment 13；
(5) new base course splicing is widened：Bottom-up new road graded broken stone floor 14, the new road asphalt-regenerating of carrying out successively is utilized
Material basic unit 15, new road dense bitumen stabilized macadam base 16 pave construction；When new road graded broken stone floor 14 is constructed, first new
The top surface of sub-base road 13 laying layer of glass fiber GSZ 17, the laid inside grouting behind shaft or drift lining pipe 18 of Bing Xin roads graded broken stone floor 14；
Pitch cementation of fissures body 19, and the laying connection grid 20 at the top of splicing seams are set at splicing seams；The old milling material of road upper layer 1 warp
Utilized after regeneration as new road asphalt-regenerating and expect basic unit 15；
(6) new road sealing construction：Needed before new road sealing construction first with unhairing machine by new road dense bitumen stabilization gravel base
Layer 16 is surface roughened, and removes dust, then carries out surface clean, drying, is constructed using thin overlay method, new road sealing 21 is wide
The width of Du Tongxin roads pitch cutting optimal 22；Pitch cementation of fissures body 19, and the company of laying at the top of splicing seams are set at surface layer splicing seams
Adapting grille 20；
(7) splicing of surface layer 23 is widened in new road pitch cutting optimal 22, new road pitch：It is bottom-up to carry out new road pitch successively
Surface layer 23 splices Widening Construction in cutting optimal 22, new road pitch, after the completion of new road pitch cutting optimal 22 paves, in new road pitch
The seam crossing of cutting optimal 22 and old road cutting optimal 3 longitudinally lays a crack partition panel 24 along seam；
(8) road surface 25 paves：The debris of the upper surface of surface layer 2 in surface layer 23 and old road in new road pitch is first removed,
The upper surface of surface layer 2 dispenses a floor priming oil, seam crossing and sets up a floor sticking layer oil in surface layer 23 and old road in the pitch of Zai Xin roads,
Then the upper surface of the surface layer 2 paving concrete pavement upper layer 25 simultaneously in surface layer 23 and old road in new road pitch.
Claims (6)
1. a kind of Asphalt Pavement with Flexible Base splices Widening Construction method, it is characterised in that including following construction procedure：
(1) preparation of construction：The linear index and bearing capacity index of roadbed are tested, old road earth shoulder and road shoulder side slope is removed
Overburden soil, get all the ready pavement structure construction needed for pavement construction material, to construction device therefor demarcated and performance detection；
(2) old pavement structure sheaf milling：Old road upper layer on the inside of old road side trip is excluded, surface layer and following road surface knot in old road
Structure layer is continued to employ；, need to will according to the thickness of the splicing new pavement structure in widened region in the old road of milling during the following road surface structare layer of surface layer
Ask, step is connected in old road road surface structare layer interface milling；
(3) new subgrade strengthening：Required according to compatibility of deformation, carry out the new road roadbed filling construction of splicing widened region；Along road
Longitudinal direction, sets a roadbed to solidify beam, in new road roadbed on the old road roadbed of new sub-base road and old sub-base road seam crossing
Outer ledge at set roadbed to solidify beam, and lay one layer of bar-mat reinforcement grid in roadbed solidification top surface of the beam；By bar-mat reinforcement
Grid is welded to connect with default dowel in roadbed solidification beam；Anchor connection is followed closely by " U " snap riveting with roadbed filler；
(4) new sub-base road splicing is widened：Mixed into old road in the milling material of surface layer, old road cutting optimal and old base course
1%~2% cement, new sub-base road compound is formed through job mix, and live decking and rolling forms new sub-base road；
(5) new base course splicing is widened：The bottom-up new road graded broken stone floor, the utilization of new road asphalt-regenerating of carrying out successively expects base
Floor, new road dense bitumen stabilized macadam base pave construction；When new road graded broken stone floor is constructed, first on new sub-base road top
Lay layer of glass fiber GSZ, Bing Xin roads graded broken stone floor laid inside grouting behind shaft or drift lining pipe in face；Pitch is set at splicing seams
Cementation of fissures body, and the laying connection grid at the top of splicing seams；Old road upper layer milling material is used as new road asphalt-regenerating after regeneration
Using expecting basic unit；
(6) new road sealing construction：Needed before new road sealing construction first with unhairing machine by new road dense bitumen stabilized macadam base table
Face feather plucking, and dust is removed, then surface clean, drying are carried out, carry out sealing construction under conditions of holding surface moistening；New road
Sealing is constructed using thin overlay method, and width is with new road pitch cutting optimal width；The pitch cementation of fissures is set at surface layer splicing seams
Body, and the laying connection grid at the top of splicing seams；
(7) surface layer splicing is widened in new road pitch cutting optimal, new road pitch：It is bottom-up carry out successively new road pitch cutting optimal,
Surface layer splicing Widening Construction in the pitch of new road, after the completion of new road pitch cutting optimal paves, in new road pitch cutting optimal and Jiu Lu
The seam crossing of cutting optimal longitudinally lays a crack partition panel along seam；
(8) road surface paves：First remove the debris of surface layer upper surface in surface layer and old road in new road pitch, the drip of Zai Xin roads
The upper surface of surface layer dispenses a floor priming oil, seam crossing and sets up a floor sticking layer oil in surface layer and old road in green grass or young crops, is then dripped on new road
Surface layer upper surface paving concrete pavement upper layer simultaneously in surface layer and old road in green grass or young crops.
2. Asphalt Pavement with Flexible Base according to claim 1 splices Widening Construction method, it is characterised in that step (3) institute
State roadbed solidification beam using the cement binding material bed fillers that satisfy the need to be solidified, roadbed solidifies beam width for 1m~4m, depth 0.2m
~0.3m；Dowel is inserted in roadbed solidification beam, and connecting bend is set in dowel end.
3. Asphalt Pavement with Flexible Base according to claim 1 splices Widening Construction method, it is characterised in that step (7) institute
The surface for stating crack partition panel sets connecting groove, and the width on new-old pavement cutting optimal splicing seams both sides is not less than 20cm, indulges
To the lap of splice >=50cm, in crack, antirust treatment is done on the surface of partition panel.
4. Asphalt Pavement with Flexible Base according to claim 1 splices Widening Construction method, it is characterised in that in step
(3), when step (4), step (5), step (7), step (8) construction, outside longitudinal direction tight-wire walking controls each road surface with design altitude
The steel wire reference plane of structure sheaf, with horizontal slope instrument cross fall；Roll should follow closely follow, slowly pressure, high frequency, principle by a narrow margin carry out,
When using more than Liang Tai and two construction with paving machine, the fore-and-aft distance for the 4m~8m that should longitudinally stagger between paver.
5. Asphalt Pavement with Flexible Base according to claim 1 splices Widening Construction method, it is characterised in that step (5) institute
Grouting behind shaft or drift lining pipe is stated using rubber tube or steel pipe, sealing headkerchief is set in the buried section end of grouting behind shaft or drift lining pipe, section of stretching out end sets slip casting
Pipe linkage section, side wall is spaced 0.2m~0.5m and sets a plasma discharge liquid bleeding holes along its length.
6. Asphalt Pavement with Flexible Base according to claim 1 splices Widening Construction method, it is characterised in that step (4) institute
Surface layer is respectively adopted in close-graded modified pitch cutting optimal, close-graded modified pitch in Shu Xin roads pitch cutting optimal, new road pitch
Surface layer；Road surface is using pitch horseshoe matter stabilization gravel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467073.5A CN107227667B (en) | 2017-06-19 | 2017-06-19 | A kind of Asphalt Pavement with Flexible Base splicing Widening Construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467073.5A CN107227667B (en) | 2017-06-19 | 2017-06-19 | A kind of Asphalt Pavement with Flexible Base splicing Widening Construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107227667A true CN107227667A (en) | 2017-10-03 |
| CN107227667B CN107227667B (en) | 2019-05-28 |
Family
ID=59934942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467073.5A Active CN107227667B (en) | 2017-06-19 | 2017-06-19 | A kind of Asphalt Pavement with Flexible Base splicing Widening Construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107227667B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193573A (en) * | 2018-01-25 | 2018-06-22 | 梁海平 | For the road structure and construction method of road widening |
| CN109162161A (en) * | 2018-10-25 | 2019-01-08 | 江西博慧工程技术服务有限公司 | A kind of road structure and its construction method of Ground included structures |
| CN109944131A (en) * | 2017-12-20 | 2019-06-28 | 张正安 | A kind of airplane parking area reparation construction method |
| CN110029549A (en) * | 2019-03-22 | 2019-07-19 | 安徽省交通规划设计研究总院股份有限公司 | A kind of rock-filling embankment comes to nothing the Treatment Methods of cracking |
| CN110820455A (en) * | 2019-11-27 | 2020-02-21 | 江西省公路桥梁工程有限公司 | Construction process for lapping and expanding roadbed of asphalt concrete highway |
| CN110965423A (en) * | 2019-12-17 | 2020-04-07 | 中交路桥华北工程有限公司 | Anti-crack construction method for asphalt pavement splicing |
| CN111576131A (en) * | 2020-06-03 | 2020-08-25 | 北京崇建工程有限公司 | New and old asphalt pavement lap joint structure and construction method |
| CN112900181A (en) * | 2021-03-08 | 2021-06-04 | 南昌城建集团有限公司 | Construction method for widening thin layer of asphalt pavement |
| CN115217008A (en) * | 2022-07-21 | 2022-10-21 | 中国十七冶集团有限公司 | Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed |
| CN115353344A (en) * | 2022-08-10 | 2022-11-18 | 聊城市交通发展有限公司 | Cement-based bonding slurry, preparation process thereof and splicing construction method of new and old pavements |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616954A (en) * | 1984-07-30 | 1986-10-14 | Japan Constec Kabushiki Kaisha | Continuous pavement process for a bridge surface expansion joint |
| EP1932660B1 (en) * | 2006-12-11 | 2010-04-14 | SC Arcon SRL | Multi-reinforced termo-adhesive composite bituminous membrane, with elastoplastomers for hydroisolated and reinforced road surfacing |
| CN102409589A (en) * | 2011-08-23 | 2012-04-11 | 河南省交通规划勘察设计院有限责任公司 | Construction method for joining new and old pavements in road widening project |
| CN103741569A (en) * | 2013-12-18 | 2014-04-23 | 山东省交通科学研究所 | Drainage crack resistance based old road expansion splicing structure and method |
| CN106480799A (en) * | 2016-10-19 | 2017-03-08 | 长沙理工大学 | Pavement mosaic method and structure suitable for Old cement concrete reorganization and expansion |
-
2017
- 2017-06-19 CN CN201710467073.5A patent/CN107227667B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616954A (en) * | 1984-07-30 | 1986-10-14 | Japan Constec Kabushiki Kaisha | Continuous pavement process for a bridge surface expansion joint |
| EP1932660B1 (en) * | 2006-12-11 | 2010-04-14 | SC Arcon SRL | Multi-reinforced termo-adhesive composite bituminous membrane, with elastoplastomers for hydroisolated and reinforced road surfacing |
| CN102409589A (en) * | 2011-08-23 | 2012-04-11 | 河南省交通规划勘察设计院有限责任公司 | Construction method for joining new and old pavements in road widening project |
| CN103741569A (en) * | 2013-12-18 | 2014-04-23 | 山东省交通科学研究所 | Drainage crack resistance based old road expansion splicing structure and method |
| CN106480799A (en) * | 2016-10-19 | 2017-03-08 | 长沙理工大学 | Pavement mosaic method and structure suitable for Old cement concrete reorganization and expansion |
Non-Patent Citations (1)
| Title |
|---|
| 董亚平等: "G2京沪高速(上海段)拓宽改建工程superpave沥青路面施工技术", 《上海公路》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944131A (en) * | 2017-12-20 | 2019-06-28 | 张正安 | A kind of airplane parking area reparation construction method |
| CN109944131B (en) * | 2017-12-20 | 2021-09-21 | 张正安 | Parking apron repairing construction method |
| CN108193573B (en) * | 2018-01-25 | 2019-04-26 | 梁海平 | Road structure and construction method for road widening |
| CN108193573A (en) * | 2018-01-25 | 2018-06-22 | 梁海平 | For the road structure and construction method of road widening |
| CN109162161A (en) * | 2018-10-25 | 2019-01-08 | 江西博慧工程技术服务有限公司 | A kind of road structure and its construction method of Ground included structures |
| CN109162161B (en) * | 2018-10-25 | 2020-07-14 | 江西博慧工程技术服务有限公司 | Road structure containing structural object road section and construction method thereof |
| CN110029549B (en) * | 2019-03-22 | 2021-07-13 | 安徽省交通规划设计研究总院股份有限公司 | Treatment method for rockfill subgrade void cracking |
| CN110029549A (en) * | 2019-03-22 | 2019-07-19 | 安徽省交通规划设计研究总院股份有限公司 | A kind of rock-filling embankment comes to nothing the Treatment Methods of cracking |
| CN110820455A (en) * | 2019-11-27 | 2020-02-21 | 江西省公路桥梁工程有限公司 | Construction process for lapping and expanding roadbed of asphalt concrete highway |
| CN110965423A (en) * | 2019-12-17 | 2020-04-07 | 中交路桥华北工程有限公司 | Anti-crack construction method for asphalt pavement splicing |
| CN111576131A (en) * | 2020-06-03 | 2020-08-25 | 北京崇建工程有限公司 | New and old asphalt pavement lap joint structure and construction method |
| CN112900181A (en) * | 2021-03-08 | 2021-06-04 | 南昌城建集团有限公司 | Construction method for widening thin layer of asphalt pavement |
| CN112900181B (en) * | 2021-03-08 | 2022-04-22 | 南昌城建集团有限公司 | Construction method for widening thin layer of asphalt pavement |
| CN115217008A (en) * | 2022-07-21 | 2022-10-21 | 中国十七冶集团有限公司 | Method for widening treatment of solid waste by using calcium carbide to stabilize regenerated granular road bed |
| CN115353344A (en) * | 2022-08-10 | 2022-11-18 | 聊城市交通发展有限公司 | Cement-based bonding slurry, preparation process thereof and splicing construction method of new and old pavements |
| CN115353344B (en) * | 2022-08-10 | 2023-04-07 | 聊城市交通发展有限公司 | Cement-based bonding slurry, preparation process thereof and splicing construction method of new and old pavements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107227667B (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107227667B (en) | A kind of Asphalt Pavement with Flexible Base splicing Widening Construction method | |
| CN203034334U (en) | Crack repairing structure for asphalt concrete pavement | |
| CN105926406B (en) | A kind of joining method and structure on old road new in reorganization and expansion pavement construction | |
| CN111893827A (en) | Construction process of urban trunk road | |
| CN113047110B (en) | Construction method of municipal road asphalt concrete pavement | |
| CN108797249A (en) | The construction method of soft soil roadbed high roadbed steep slope road section Foam lightweight soil | |
| CN108642988B (en) | Comprehensive treatment and repair structure for embankment base layer diseases and construction method | |
| CN107165022B (en) | A kind of big thickness subbase construction method of High-cold regions highway widening reinforcement | |
| CN103233406B (en) | A kind of road and storage yard pavement structure layer of long-term durable stable use and construction method thereof | |
| CN107761501A (en) | A kind of road construction method | |
| CN110644324A (en) | Splicing construction method for reconstructing and expanding new road and old road | |
| CN103924501A (en) | Reinforcing construction method in partial failure repairing of rural cement pavement | |
| CN108547195A (en) | A kind of porous asphalt pavement structure and construction method | |
| CN112144573B (en) | Reverse-slotting PC (polycarbonate) member rapid inspection well construction method | |
| CN107313320A (en) | The embedded reinforcement asphalt pavement structure of cement concrete pavement and construction method | |
| CN104631268B (en) | A kind of concrete road pavement structure | |
| CN206887665U (en) | A kind of Asphalt Pavement with Flexible Base splices widened structure | |
| Shukla et al. | Functions and installation of paving geosynthetics | |
| CN209669625U (en) | Concrete Overlays pitch longitudinal joint processing construction | |
| CN217460139U (en) | Long-life road structure | |
| CN112900181B (en) | Construction method for widening thin layer of asphalt pavement | |
| CN107700301A (en) | A kind of ruggedized construction on express highway roadbed | |
| CN210288004U (en) | Road repair structure based on settlement control | |
| CN106192645A (en) | A kind of wind field road construction method | |
| CN112030690A (en) | Construction method for treating pavement cracks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Sichuan Communications Construction Group Co.,Ltd. Address before: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee before: SICHUAN JIAOTOU CONSTRUCTION ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Sichuan Communications Construction Group Co.,Ltd. Address before: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee before: Sichuan Communications Construction Group Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |