CN108277713A - The roadbed laying structure and construction method extended for highway - Google Patents
The roadbed laying structure and construction method extended for highway Download PDFInfo
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- CN108277713A CN108277713A CN201810073604.7A CN201810073604A CN108277713A CN 108277713 A CN108277713 A CN 108277713A CN 201810073604 A CN201810073604 A CN 201810073604A CN 108277713 A CN108277713 A CN 108277713A
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 6
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- 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
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of roadbed laying structure extended for highway and construction methods, including：Bed course, go to a grassroots level, upper base's knead dough layer by layer, the bond strength that fixed frame increases upper base and goes to a grassroots level is set wherein between middle layer and rock ballast layer, prevent level from detaching, it simultaneously being capable of enhancing structure stability positioned at the bed course of bottom, disperse roadbed stress, prevents from sinking, traction piece is set between surface layer and upper base, traction piece increases the bond strength between level, and face layer is prevented to be detached from.Wherein, traction the inside is the one or more in steel wire, abaca fibre, carbon fiber and polytetrafluoroethylene fibre, these materials combine so that traction piece is tough and tensile corrosion-resistant, it is not easy to be corroded by cement rotten, while solve the problems, such as that polytetrafluoroethylene fibre and cement or asphalt binder power is not strong.Also set up interconnecting piece, it includes multiple dovetail grooves and the fixture block that is adapted to the dovetail groove, the dovetail groove is separately positioned on the faying face of old road and the road structure with the fixture block, prevents the relatively old road of the roadbed newly widened from sinking and cracks or detach.
Description
Technical field
The present invention relates to Expressway Extension Project fields, it is more particularly related to which a kind of prolong for highway
The roadbed laying structure and construction method stretched.
Background technology
With the fast development of scientific and technological progress and economic society, people’s lives level is continuously improved, and high speed is gone on a journey
More and more frequently, need to expand road passage capability to meet the trip needs of people.In original turnpike driving road
On the basis of extended, it is not only cost-effective, and test technology, when road cannot adapt to the increasingly increased volume of traffic, need
By original road widening.Existing road widening construction method is typically to spread sand after the road edge widened will be needed to even out
Then the materials such as stone and cement or pitch compress and form new roadbed.Since material and structure etc. have differences, and
The treatment process of engaging portion is not good enough, cracking can occur between new-old concrete bond, sedimentation is even caved in.To solve the problems, such as cracking,
And still, often flatness is poor for cement concrete pavement, and the water permeability of cement concrete is poor thus more in sleet
The season of hair, road surface are easier to ponding, influence the comfort of vehicle traveling, and traffic accident is taken place frequently, therefore research and develop a kind of knot
Structure is firm, and well-drained road structure is necessary.
Invention content
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of roadbed laying structure extended for highway and construction method, energy
It is enough that fastening will be being connected between each layer of roadbase, it is that road structure is more firm, widening road road pavement is avoided to cause to crack
And the danger collapsed.
In order to realize these purposes and other advantages according to the present invention, a kind of roadbed paving extended for highway is provided
If structure, including：
Bed course is laid with after the stone, slag, building waste and the sand mixing that are 8-10 centimetres of diameter and is formed, described
Multiple convex blocks are arranged in the upper surface of bed course.
It goes to a grassroots level, is located above the bed course, the lower surface gone to a grassroots level, which is arranged, multiple to be adapted to the convex block
Pit, so that described go to a grassroots level is combined more secured, the bed course convex block insertion pit with bed course, it is described to go to a grassroots level as grain
It is laid with and is formed after rubble, pitch, glass fibre and the sand mixing that 8-20 millimeter of diameter.
Upper base, is located at the top gone to a grassroots level, and the upper base is mixed by graded broken stone, lime, old asphalt etc.
It is laid with and is formed after conjunction.
Fixed frame, cross section are I-shaped, and the first half of the fixed frame submerges in the upper base, and lower half is submerged
It is described go to a grassroots level in, and the first half of the fixed frame at least submerges on one half thickness of upper base；Wherein, described solid
Determine frame to be specifically configured to：The upper surface of described fixed frame, following and intermediate joint face are disposed as rectangle reinforcing bar grid.
Face layer constitutes the surface of the road, and the face layer is located above the upper base, and the face layer is in road surface
Mandrel line is the arc that peak extends to road surface both sides, and radian is 5-8 degree, and the face layer is cement concrete or asphalt road
Face.
Interconnecting piece comprising multiple dovetail grooves and the fixture block being adapted to the dovetail groove, the dovetail groove and the card
Block is separately positioned on the faying face of old road and the road structure.
Preferably, further include drainage blanket, the drainage blanket setting is below the layer of the face, and the drainage blanket is by multiple interior
The hollow PP-R in portion manages laterally homogeneous arrangement composition, and the PP-R pipes side wall opens up leakage hole, and PP-R pipes both ends connect
The gutter of both sides of the road.
Preferably, the width of the face layer is less than the upper base, so as to form groove, institute in the side of face layer
It states in groove and maintains an equal level filled with the pervious bed being made of pervious concrete, the height of the pervious bed and the edge of face layer.
Preferably, the grizzly bar gap of grid is 10-30 centimetres above the fixed frame and below, the connection of the centre
The grizzly bar gap of face grid is 20-50 centimetres.
Preferably, a diameter of 3-8 centimetres of the PP-R pipes.
Preferably, further include traction piece, one end of the traction piece is connected on the grid above the fixed frame, separately
One end submerge in the layer of the face be coupled the face layer and with the upper base, the traction material is steel wire, bamboo fibre, carbon fiber
Peacekeeping polytetrafluoroethylene fibre is mixed.
Preferably, the aperture width of 10-35 millimeters of the depth of the pit, the pit is 20-50 millimeters.
Preferably, the appearance spray on polymer epoxy resin and pitch of the fixed frame.
A kind of construction method of the roadbed laying structure extended for highway, wherein include the following steps：
Step 1: the old both sides of the road widened will be needed, which to excavate, exposes old road side, flattens soil and form face of mating formation, paving
Dress face is less than or maintains an equal level the old road foundation structure bottom；Show the dovetail groove by the sawing of old road side.
Step 2: the bed course of 15-25 cm thicks is laid on the face of mating formation, in the upper table of bed course before bed course is unhardened
Face is poured out multiple convex blocks.
Step 3: setting base on the bed course upper berth, 25-35 centimetres high of fixed frame is made, is put above bed course
The fixed frame is set, the fixed frame is located at the centre position for width direction of going to a grassroots level；It, will using old material of asphalt pavement when laying
Fixed frame wraps up or coats macromolecule epoxy resin and pitch for fixed frame, goes to a grassroots level and buries to the position of fixed frame half height
Postpone pressing.
Step 4: forming upper base in the upper joints cement concrete of going to a grassroots level, cement concrete buries fixed frame,
Multiple pores are pierced out in the upper surface gone to a grassroots level before upper base is unhardened, the one end for drawing material is fixed on the fixed frame
The upper surface of, the other end exposes the upper surface of upper base.
Step 5: the PP-R pipes in the upper laterally homogeneous multiple inner hollows of arrangement in base upper surface form drainage blanket.
Step 6: continuing joints cement concrete or bituminous concrete to predetermined altitude and width in the upper surface of upper base
It completes after degree forming face layer, in the face, the side of layer opens up groove, and groove is interior permeable filled with being made of pervious concrete
Layer, the height and the edge of face layer of pervious bed maintain an equal level.
The present invention includes at least following advantageous effect：
The present invention road structure set gradually bed course, go to a grassroots level, upper base's knead dough layer by layer, wherein in middle layer and rock ballast
The bond strength that setting fixed frame increases upper base and goes to a grassroots level between layer, prevents level from detaching, while positioned at the bed course of bottom
Can enhancing structure stability, disperse roadbed stress, prevent from sinking, traction piece, traction piece be set between surface layer and upper base
Increase the bond strength between level, face layer is prevented to be detached from.Wherein, traction the inside is steel wire, bamboo fibre, carbon fiber and polytetrafluoro
Vinyl fiber is mixed, these materials combine so that traction piece is tough and tensile corrosion-resistant, it is not easy to be corroded by cement rotten, solve simultaneously
The polytetrafluoroethylene fibre problem not strong with cement or asphalt binder power.Also set up interconnecting piece comprising multiple dovetail grooves
And the fixture block being adapted to the dovetail groove, the dovetail groove are separately positioned on old road and the road structure with the fixture block
Faying face, prevent the relatively old road of the roadbed newly widened sink cracking or separation.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the roadbed laying structure of the present invention extended for highway and the structural schematic diagram of construction method；
Fig. 2 is the overlooking structure diagram of the new and old road interconnecting piece of roadbed laying structure of the present invention.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figures 1 and 2, the present invention provides a kind of roadbed laying structure extended for highway, including：
Bed course 18 is laid with after the stone, slag, building waste and the sand mixing that are 8-10 centimetres of diameter and is formed, institute
Multiple convex blocks are arranged in the upper surface for stating bed course.
It goes to a grassroots level 17, is located above the bed course, the lower surface setting gone to a grassroots level is multiple to be adapted to the convex block
Pit so that described go to a grassroots level is combined more secured with bed course, the bed course convex block is embedded in the pit, it is described go to a grassroots level for
It is laid with and is formed after rubble, pitch, glass fibre and the sand mixing that 8-20 millimeter of grain size.
Upper base 16 is located at the top gone to a grassroots level, and the upper base is by mixing such as graded broken stone, lime, pitches
It is laid with and is formed afterwards.
Fixed frame 15, cross section are I-shaped, and the first half of the fixed frame submerges in the upper base, and lower half does not have
Enter in described go to a grassroots level, and the first half of the fixed frame at least submerges on one half thickness of upper base；Wherein, described
Fixed frame is specifically configured to：The upper surface of described fixed frame, following and intermediate joint face are disposed as rectangle reinforcing bar grid.
Face layer 13, constitutes the surface of the road, and the face layer 13 is located at 16 top of the upper base, the face layer 13
Using the arc that road center axis extends as peak to road surface both sides, radian is 5-8 degree, and the face layer 13 is cement concrete
Or bituminous paving.
Interconnecting piece 12 comprising multiple dovetail grooves and the fixture block being adapted to the dovetail groove, the dovetail groove with it is described
Fixture block is separately positioned on the faying face of old road 10 and the road structure 11.
In the above scheme, bed course 18 are stone, slag, building waste and the sand mixing of 8-10 centimetres of diameter
It is laid with and is formed afterwards, multiple convex blocks are arranged in the upper surface of the bed course 18；Traditional foundations directly use rubble pad as bottom, rubble grain
Diameter is too small, and forced area is small, is easy to sink, the grain size of stone is big, big with the contact area in soil, can subtract force dispersion
It is few to sink, it keeps stablizing, the grade of bed course 18 is equipped with subject to actual conditions.For example the mass ratio of stone, rubble, sand is 4：2：1,
It goes to a grassroots level 17, is located at 18 top of bed course, multiple pits being adapted to the convex block are arranged in 17 lower surface of going to a grassroots level, so that institute
State to go to a grassroots level 17 is combined more secured with bed course 18, and 18 convex block of bed course is embedded in pit, can enhance bed course 18 and go to a grassroots level 17
Bond strength prevents two separate, goes to a grassroots level 17 as the rubble of 8-20 millimeters of grain size, pitch, glass fibre and sand mixing
It is laid with and is formed afterwards；Upper base 16, be located at go to a grassroots level 17 top, upper base 16 is mixed by graded broken stone, lime, old asphalt etc.
It is laid with and is formed after conjunction；Old material can be recycled using old material of asphalt pavement, reduces cost, while old asphalt can increase
The leakproofness of upper base 16 reduces infiltration, the oxidation corrosion for reducing infiltration and leaking out to fixed frame 15.Traditional road structure layer
Be easily separated between layer, for example, graded broken stone, lime, old material of asphalt pavement and sand mass ratio be 1：1：1：1, it is fixed
Frame 15, as shown in Figure 1, its cross section is I-shaped, the first half of the fixed frame 15 submerges in the upper base 16, lower half
Submerge it is described go to a grassroots level in 17, and the first half of the fixed frame 15 is at least submerged on 16 general thickness of upper base and is protected
Demonstrate,proving 16 layers of fixed frame 15 and upper base has enough bond strengths；Fixed frame 15 can increase the bond strength and structure of levels
Intensity prevents tomography and level to be detached from, face layer 13, forms the surface of the road, and face layer 13 can be cement concrete layer,
Can also be asphalt concrete layer, could be provided as conventional thickness, can also be arranged to according to actual conditions it is slightly thick or
Slightly thin thickness, for example it is set as the cement concrete layer after 20-40 centimetres.
In one preferred embodiment, the width of the face layer 13 is less than the upper base 16, so that the one of face layer 13
Side forms groove, and the pervious bed 19 being made of pervious concrete, the height of the pervious bed 19 and institute are filled in the groove
The edge for stating face layer maintains an equal level.
In the above scheme, by the way that groove and pervious bed 19 is arranged, surface gathered water can be made to concentrate in groove, unified row
It puts, the service life that reduction ponding crosses road pavement impacts.
Further include drainage blanket 14, the setting of the drainage blanket 14 is below face layer 13, the row in one preferred embodiment
Water layer 14 is made of the laterally homogeneous arrangement of PP-R pipes of multiple inner hollows, and the PP-R pipes side wall opens up leakage hole, and described
The gutter of PP-R pipes both ends linking-up road both sides.
In the above scheme, by the way that drainage blanket 14 is arranged, and pervious bed 19 is filled above so that the moisture warp on road surface
The leakage hole of PP-R pipes is infiltrated by the pervious bed 19 of road surface both sides so that road surface moisture is discharged by PP-R pipes in gutter,
The risk of surface gathered water is reduced, while also avoiding oozing the cementability for influencing each layer in pavement structure under moisture.
In one preferred embodiment, the grizzly bar gap of grid is 10-30 centimetres to the fixed frame 15 above and below, in described
Between joint face grid grizzly bar gap be 20-50 centimetres.
In the above scheme, by fixed frame 15, the grizzly bar gap of grid is 10-30 centimetres, preferred 20 lis above and below
The grizzly bar gap of rice, intermediate joint face grid is 20-50 centimetres, preferably 35 centimetres, not only may be implemented to confine level up and down, but also
It can prevent from cracking.
In one preferred embodiment, a diameter of 3-8 centimetres of the PP-R pipes.
Further include traction piece in one preferred embodiment, one end of the traction piece is connected to above the fixed frame 15
On grid, the other end submerge in the layer of the face be coupled the face layer 13 and with the upper base 16, the traction material is steel
Silk, bamboo fibre, carbon fiber and polytetrafluoroethylene fibre are mixed.
In the above scheme, polytetrafluoroethylene fibre and steel wire are screwed and is combined as wire rope core, be equipped with bamboo fibre and carbon fiber
Dimension screws or is compiled into rope and obtains the traction material.Increase the friction coefficient of traction material surface, enhancing traction material energy
With cement concrete adhesive strength.
In one preferred embodiment, the aperture width of 10-35 millimeters of the depth of the pit, the pit is 20-50 millimeters.
In the above scheme, the aperture width of 10-35 millimeters of the depth of the pit, preferably 25 millimeters, pit is 20-50
Millimeter, preferably 35 millimeters.
In one preferred embodiment, the appearance spray on polymer epoxy resin and pitch of the fixed frame 15.
In the above scheme, the appearance spray on polymer epoxy resin and pitch of the fixed frame 5.It buries 5 part of fixed frame
It does not go to a grassroots level in 17 upper, there are gaps between the particle above gone to a grassroots level, and are easy infiltration and gas leakage, therefore are easy oxidation and fix
Frame, the adhesion strength that spraying pitch not only enhances fixed frame 15 and above goes to a grassroots level, macromolecule epoxy resin have excellent glue
Intensity is connect, and hardness is high, flexibility is good, while also good water resistance, moreover it is possible to make interlayer that there is certain elasticity and prolong
Malleability reduces the passage harm of interlayer, improves the service life of pavement structure, moreover it is possible to prevent fixed frame by oxidation corrosion.
A kind of construction method of the roadbed laying structure extended for highway, wherein include the following steps：
Step 1: the old both sides of the road widened will be needed, which to excavate, exposes old road side, flattens soil and form face of mating formation, paving
Dress face is less than or maintains an equal level the old road foundation structure bottom；Depending on as the case may be, if old road than relatively thin, in order to new
The surface of old road maintains an equal level, face of mating formation can dig it is deep a bit, if old road is sufficiently thick, face of mating formation can maintain an equal level or slightly
It is lower；Show the dovetail groove by the sawing of old road side.
Step 2: the bed course 18 of 15-25 cm thicks is laid on the face of mating formation, in bed course 18 before bed course 18 is unhardened
Upper surface be poured out multiple convex blocks, convex block may be configured as cone, and bump height is prevented at least below 17 thickness half of going to a grassroots level
Only convex block is excessively high, and but road surface formation crackle bad with 17 materials bonding of going to a grassroots level.
Step 3: setting base 19 on 18 upper berth of the bed course, 25-35 centimetres high of fixed frame 15, fixed frame 15 are made
Height may be configured as 30 centimetres, go to a grassroots level accordingly 17 thickness may be configured as 40 centimetres bed course top place it is described solid
Determine frame 15, the fixed frame 15 is located at the centre position for 17 width directions of going to a grassroots level；When laying, it will be consolidated using old material of asphalt pavement
Determine the package of frame 15 or coat macromolecule epoxy resin and pitch for fixed frame 15, going to a grassroots level 17 buries to 15 half the height of fixed frame
It is flattened behind the position of degree.
Step 4: pouring the concrete such as graded broken stone, lime, pitch in described go to a grassroots level on 17 and forming upper base 16, water
Cement concrete buries fixed frame 15, pierces out multiple pores in 17 upper surface of going to a grassroots level before upper base 16 is unhardened, will lead
The one end for drawing material is fixed on the upper surface of described fixed frame 15, and the other end exposes the upper surface of upper 16 layers of base by pore.
Step 5: the PP-R pipes in the laterally homogeneous multiple inner hollows of arrangement in 16 upper surface of upper base form drainage blanket
14。
Step 6: the upper surface of upper base 16 continue joints cement concrete or bituminous concrete to predetermined altitude and
It completes after width forming face layer 13, in the face, the side of layer 13 opens up groove, is filled in groove and is made of pervious concrete
Pervious bed 19, the height of pervious bed 19 and the edge of face layer 13 maintain an equal level.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of roadbed laying structure extended for highway and its construction method, wherein including：
Bed course is laid with after the stone, slag, building waste and the sand mixing that are 8-10 centimetres of diameter and is formed, the bed course
Upper surface multiple convex blocks are set；
It goes to a grassroots level, is located above the bed course, multiple pits being adapted to the convex block are arranged in the lower surface gone to a grassroots level,
So that described go to a grassroots level is combined more secured, the bed course convex block insertion pit with bed course, it is described to go to a grassroots level as grain size 8-
20 millimeters of rubble, pitch, glass fibre and sand is laid with after mixing and is formed；
Upper base is located at the top gone to a grassroots level, after the upper base is by mixing such as graded broken stone, lime, old asphalts
It is laid with and is formed；
Fixed frame, cross section are I-shaped, and the first half of the fixed frame submerges in the upper base, and lower half is submerged described
In going to a grassroots level, and the first half of the fixed frame at least submerges on one half thickness of upper base；Wherein, the fixed frame
It is specifically configured to：The upper surface of described fixed frame, following and intermediate joint face are disposed as rectangle reinforcing bar grid；
Face layer constitutes the surface of the road, and the face layer is located above the upper base, and the face layer is with road center axis
Line is the arc that peak extends to road surface both sides, and radian is 5-8 degree, and the face layer is cement concrete or bituminous paving；
Interconnecting piece comprising multiple dovetail grooves and the fixture block being adapted to the dovetail groove, the dovetail groove and the fixture block point
Faying face in old road and the road structure is not set.
2. the roadbed laying structure extended as described in claim 1 for highway, wherein further include drainage blanket, the draining
Layer setting is below the layer of the face, and the drainage blanket is made of the laterally homogeneous arrangement of PP-R pipes of multiple inner hollows, the PP-
R pipe side walls open up leakage hole, and the gutter of PP-R pipes both ends linking-up road both sides.
3. the roadbed laying structure extended as described in claim 1 for highway, wherein the width of the face layer is less than described
Upper base is filled with the pervious bed being made of pervious concrete so as to form groove in the side of face layer in the groove,
The height of the pervious bed and the edge of face layer maintain an equal level.
4. the roadbed laying structure extended as described in claim 1 for highway, wherein above the fixed frame and following lattice
The grizzly bar gap of grid is 10-30 centimetres, and the grizzly bar gap of the joint face grid of the centre is 20-50 centimetres.
5. the roadbed laying structure of road widening as claimed in claim 2, wherein a diameter of 3-8 centimetres of the PP-R pipes.
6. the roadbed laying structure extended as described in claim 1 for highway, wherein further include traction piece, the traction
One end of part is connected on the grid above the fixed frame, and the other end submerges in the face layer to be coupled the face layer and and institute
Shu Shang bases, the traction material are that steel wire, bamboo fibre, carbon fiber and polytetrafluoroethylene fibre are mixed.
7. the roadbed laying structure extended as described in claim 1 for highway, wherein the depth 10-35 millis of the pit
The aperture width of rice, the pit is 20-50 millimeters.
8. the roadbed laying structure extended as described in claim 1 for highway, wherein the appearance spraying of the fixed frame is high
Molecule epoxy resin and pitch.
9. a kind of construction method of the roadbed laying structure extended for highway, wherein include the following steps：
Step 1: the old both sides of the road widened will be needed, which to excavate, exposes old road side, flattens soil and form face of mating formation, face of mating formation
It is less than or maintains an equal level the old road foundation structure bottom；Show the dovetail groove by the sawing of old road side；
Step 2: being laid with the bed course of 15-25 cm thicks on the face of mating formation, filled in the upper surface of bed course before bed course is unhardened
Outpour multiple convex blocks；
Step 3: setting base on the bed course upper berth, 25-35 centimetres high of fixed frame is made, institute is placed in the top of bed course
Fixed frame is stated, the fixed frame is located at the centre position for width direction of going to a grassroots level；When laying, it will be fixed using old material of asphalt pavement
Frame wraps up or coats macromolecule epoxy resin and pitch for fixed frame, goes to a grassroots level and buries to after the position of fixed frame half height
It flattens；
Step 4: pouring the concrete such as graded broken stone, lime, old asphalt on described go to a grassroots level forms upper base, concrete
Fixed frame is buried, multiple pores is pierced out in the upper surface gone to a grassroots level before upper base is unhardened, the one end for drawing material is consolidated
It is scheduled on the upper surface of described fixed frame, the other end exposes the upper surface of upper base；
Step 5: the PP-R pipes in the upper laterally homogeneous multiple inner hollows of arrangement in base upper surface form drainage blanket；
Step 6: continuing joints cement concrete or bituminous concrete to predetermined altitude and width shape in the upper surface of upper base
At completing after the layer of face, in the face, the side of layer opens up groove, is filled with the pervious bed being made of pervious concrete in groove, thoroughly
The height of water layer and the edge of face layer maintain an equal level.
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| CN201810073604.7A CN108277713B (en) | 2018-01-25 | 2018-01-25 | Roadbed laying structure for highway extension and construction method |
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| CN113981765A (en) * | 2021-09-15 | 2022-01-28 | 湖北力天生态景观有限公司 | Colored concrete garden road with water permeability and construction method thereof |
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