CN106758644A - Light-weight foamed concrete road surface structure and its construction method - Google Patents
Light-weight foamed concrete road surface structure and its construction method Download PDFInfo
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- CN106758644A CN106758644A CN201710052889.1A CN201710052889A CN106758644A CN 106758644 A CN106758644 A CN 106758644A CN 201710052889 A CN201710052889 A CN 201710052889A CN 106758644 A CN106758644 A CN 106758644A
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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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
-
- 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
-
- 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
-
- 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of light-weight foamed concrete road surface structure, including it is sequentially arranged in basic unit, horizontal waterproof layer, drainage blanket, concrete layer, surface layer on soil matrix；The basic unit includes rubble；The horizontal waterproof layer includes the first waterproofing membrane；The drainage blanket includes drainpipe；The concrete layer includes light-weight foamed concrete；The surface layer includes the first waterproof coating layer；Also include the surrounding waterproof layer that bottom is connected with horizontal waterproof layer, the concrete layer is in the space that surrounding waterproof layer is surrounded with horizontal waterproof layer；The surrounding waterproof layer includes the second waterproofing membrane and/or the second waterproof coating layer.Different structures is used by diverse location, form the light-weight foamed concrete road surface structure of " being blocked up on lower row, surrounding is protected ", slow down the phenomenons such as light-weight foamed concrete water infringement, carbonization, reduce structure dries contraction, the disease such as crack, it is ensured that light-weight foamed concrete structure under arms in the cycle durability requirement.
Description
Technical field
The invention belongs to light-weight foamed technical field of concrete, more particularly to a kind of light-weight foamed concrete road surface structure and
The construction method of light-weight foamed concrete road surface structure.
Background technology
Light-weight foamed concrete has low excellent from heavy and light, good fluidity, low thermal conductivity factor, stable performance, ambient influnence
Point, with the continuous progress of science and technology and production technology, its application field constantly expands, from roof heat insulation thermal insulation layer,
Floor heating heat insulation layer gradually expands to the fields such as Geotechnical Engineering, commercial Application engineering.
In practical engineering application, light-weight foamed concrete structure is influenceed by factor of natural environment, such as Moisture Damage, acid
, there are endurance issues in caustic corrosion etc., influences the mechanical property of light-weight foamed concrete material in its military service cycle, but existing
Construction method can not meet durability performance requirement, therefore in the urgent need to a kind of light-weight foamed concrete structure durability of raising
Construction method, the present invention arises at the historic moment for light-weight foamed concrete durability performance requirement.
The content of the invention
Based on above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are to provide a kind of good endurance
The construction method of light-weight foamed concrete road surface structure and the light-weight foamed concrete road surface structure durability of lifting.
The technical scheme that present invention solution above-mentioned technical problem is used is as follows：
Light-weight foamed concrete road surface structure, including it is sequentially arranged in basic unit on soil matrix, horizontal waterproof layer, drainage blanket, mixed
Solidifying soil layer, surface layer；The basic unit includes rubble；The horizontal waterproof layer includes the first waterproofing membrane；The drainage blanket includes row
Water pipe；The concrete layer includes light-weight foamed concrete；The surface layer includes the first waterproof coating layer；Also include bottom and water
The surrounding waterproof layer of flat waterproof layer connection, the space that the concrete layer is surrounded located at surrounding waterproof layer with horizontal waterproof layer
It is interior；The surrounding waterproof layer includes the second waterproofing membrane and/or the second waterproof coating layer.
The bottom of the concrete layer in light-weight foamed concrete road surface structure of the invention is successively by the draining of drainpipe
Effect and the protective action of horizontal waterproof layer, can prevent water from penetrating into soil matrix, it is to avoid soil matrix changes its pattern knot because of retaining
Structure stability；The top of concrete layer is subject to buffering and the protection of surface layer, is obviously improved the durability of concrete layer；Concrete layer
Surrounding be subject to surrounding waterproof layer further protection；Different structures is used by diverse location, formed " blocked up on lower row,
The light-weight foamed concrete road surface structure of surrounding protection ", slows down the phenomenons such as light-weight foamed concrete water infringement, carbonization, reduces knot
Structure dries contraction, the disease such as crack, it is ensured that light-weight foamed concrete structure under arms in the cycle durability requirement.Wherein,
Light-weight foamed concrete can be used but be not limited to the light-weight foamed coagulation that Chinese invention patent CN104761276A is announced
Soil material.
For the construction area of diverse geographic location, various surrounding overcoats can be formed；For example, the surrounding of concrete layer
It is any several in step, hanging plate, existing building or the rock side slope that can be formed including mechanical equivalent of light excavation, when using hanging plate and both
When having building, the surrounding waterproof layer preferably uses the second waterproof coating layer, and now, the adhesion of surrounding waterproof layer and hanging plate is more
By force, when using step or rock side slope, the surrounding waterproof layer preferably uses the second waterproofing membrane, now, surrounding waterproof layer
Laying more facilitate.
As a kind of above-mentioned further improvement of light-weight foamed concrete road surface structure, the thickness of first waterproof coating layer
It is 1-2mm to spend；The thickness of second waterproof coating layer is 1-2mm；First waterproof coating layer and/or the second water-repellent paint
Layer includes the water-repellent paint after 2-5 layers of solidification.Water-repellent paint can be spread using the mode such as rolling, scraping, applying, brushing after each layer of solidification
If the surrounding waterproof layer structure with above-mentioned parameter has tensile strength higher, waterproof effect is more preferable.
Used as a kind of above-mentioned further improvement of light-weight foamed concrete road surface structure, the water-repellent paint is anti-for organosilicon
Water paint；The laying amount of the water-repellent paint after each layer of solidification is 0.8-1kg/m2.Organic silicon water-proofing coating be with latex rubber with
And complex emulsions are main base, the aqueous type water-repellent paint for mixing inorganic filler and various auxiliary agents and being made, with green ring
Protect, the characteristics of nonpoisonous and tasteless.The rubber-like elastic body of uniform complete one is formed after organic silicon water-proofing paint solidification, with good
Tensile strength.
Used as a kind of above-mentioned further improvement of light-weight foamed concrete road surface structure, first waterproofing membrane is geotechnique
Film；Seam length >=the 10cm of adjacent first waterproofing membrane overlap joint；Second waterproofing membrane is geomembrane；Adjacent second
Seam length >=the 10cm of waterproofing membrane overlap joint；The seam length of second waterproofing membrane and the first waterproofing membrane overlap joint >=
10cm；Seam crossing is bonded using water-repellent paint.So can effectively prevent water from penetrating into soil matrix from seam crossing.
Used as a kind of above-mentioned further improvement of light-weight foamed concrete road surface structure, the drainpipe is PVC drain pipe；
The arrangement spacing of the drainpipe is 3-7m.Drainpipe is discharged after the water that osculum oozes by under is collected, and prevents water on road surface
Inside configuration is gathered, and causes pavement structure immersion for a long time and damages；Further, the road of bleed-through under water of the osculum was provided with
Filter structure；Filtration can prevent the solid particle in concrete layer from blocking osculum, so as to ensure that drainpipe is normal for a long time
Stably work；The PVC is polyvinyl chloride.Further, the arrangement spacing of the drainpipe is 5m, and now, drainpipe makes
The matching degree highest of consumption and drainage effect.
As a kind of above-mentioned further improvement of light-weight foamed concrete road surface structure, the upper surface of the concrete layer and
Lower surface is provided with wire netting.The wire netting is preferably the galvanized metal net with anti-corrosion function.
The construction method of light-weight foamed concrete road surface structure, comprises the following steps：
1) basic unit is laid on soil matrix surface：The basic unit includes rubble；After the completion of rubble laying, light face pressure road can be used
Machine is compacted, and is easy to the laying of basic unit；
2) horizontal waterproof layer is laid：Horizontal waterproof layer is laid on the surface of basic unit, the horizontal waterproof layer includes that first prevents
Water film；
3) surrounding waterproof layer is laid：Surrounding waterproof layer is laid in the surrounding of concrete layer, the surrounding waterproof layer includes the
Two waterproofing membranes and/or the second waterproof coating layer；The surrounding waterproof layer bottom overlaps with horizontal waterproof layer；
4) drainage blanket is laid：It is the drainpipe of 3-7m in the surface laying spacing of horizontal waterproof layer；
5) concrete layer is laid：Light-weight foamed coagulation is poured in the space that horizontal waterproof layer and surrounding waterproof layer are surrounded
Soil；
6) surface layer is laid：Surface layer is laid behind concrete layer laying deadline >=7 day, the surface layer includes the first waterproof
Dope layer.
When using hanging plate, the drainpipe is preferably set to stretch out outside hanging plate to prevent not solidified light-weight foamed concrete
Drainpipe is flowed into, meanwhile, it is easy to draining after light-weight foamed concrete structure is intake accidentally.When pouring light-weight foamed concrete,
One side outlet of the close hanging plate for blocking the drain；When there is ponding, the side outlet for opening the close hanging plate of drainpipe is carried out
Draining.
As a kind of above-mentioned further improvement of the construction method of light-weight foamed concrete road surface structure, first waterproof
The thickness of dope layer is 1-2mm；The thickness of second waterproof coating layer is 1-2mm；First waterproof coating layer and/or
Two waterproof coating layers include the water-repellent paint after 2-5 layers of solidification.
As a kind of above-mentioned further improvement of the construction method of light-weight foamed concrete road surface structure, the water-repellent paint
It is organic silicon water-proofing coating；The laying amount of the water-repellent paint after each layer of solidification is 0.8-1kg/m2。
As a kind of above-mentioned further improvement of the construction method of light-weight foamed concrete road surface structure, first waterproof
Film is geomembrane；Seam length >=the 10cm of adjacent first waterproofing membrane overlap joint；Second waterproofing membrane is thin for geotechnique
Film；Seam length >=the 10cm of adjacent second waterproofing membrane overlap joint；What second waterproofing membrane and the first waterproofing membrane were overlapped
Seam length >=10cm；Seam crossing is bonded using water-repellent paint.So can effectively prevent water from penetrating into soil matrix from seam crossing.
As a kind of above-mentioned further improvement of the construction method of light-weight foamed concrete road surface structure, the concrete layer
Upper and lower surface be provided with wire netting.
Brief description of the drawings
Fig. 1 is the structural representation of the light-weight foamed concrete road surface structure of embodiment 1.
Fig. 2 is the structural representation of the light-weight foamed concrete road surface structure of embodiment 2.
Fig. 3 is the structural representation of the light-weight foamed concrete road surface structure of embodiment 3.
Specific embodiment
Although disclosing embodiments of the invention for the purpose of illustration, it will be appreciated by those skilled in the art that：Not
Depart from the present invention and the scope of the appended claims, various replacements, to change and modifications all be possible, therefore, the present invention
Scope do not limit to embodiment and the scope disclosed in accompanying drawing, and be to fit to and principles disclosed herein and features of novelty phase
Consistent scope most wide.
Embodiment 1
Light-weight foamed concrete road surface structure as shown in Figure 1, including it is sequentially arranged in basic unit 1, horizontal waterproof on soil matrix
Layer, drainage blanket 3, concrete layer 4, surface layer；The basic unit 1 includes rubble；The horizontal waterproof layer includes the first waterproofing membrane 2；
The drainage blanket 3 includes drainpipe；The concrete layer 4 includes light-weight foamed concrete；The surface layer is applied including the first waterproof
The bed of material 5；Also include the surrounding waterproof layer 6 that be connected with horizontal waterproof layer of bottom, the concrete layer 4 located at surrounding waterproof layer 6 and
In the space that horizontal waterproof layer is surrounded.The upper and lower surface of the concrete layer 4 is provided with wire netting 41.
The step 620 and hanging plate 610 that the surrounding in the region of light-weight foamed concrete to be filled is formed by mechanical equivalent of light excavation are constituted,
The surrounding waterproof layer 6 includes the second water-repellent paint of the second waterproofing membrane 62 and the surface of hanging plate 610 positioned at the surface of step 620
Layer 61.The waterproofing membrane 62 of first waterproofing membrane 2 and second is geomembrane, what adjacent the first waterproofing membrane 2 was overlapped
Seam length is 20cm, and the seam length of the adjacent overlap joint of the second waterproofing membrane 62 is 15cm, and the first waterproofing membrane 2 and second is anti-
The seam length of the overlap joint of water film 62 is 25cm, and seam crossing is using organic silicon water-proofing coating bonding.First water-repellent paint
The thickness of the waterproof coating layer 61 of layer 5 and second is 1mm, including the organic silicon water-proofing coating after three layers of solidification.Each layer is consolidated
The laying amount of the organic silicon water-proofing coating after change is 1kg/m2.The drainpipe is PVC drain pipe；Between the arrangement of the drainpipe
Away from being 3m.
The construction method of light-weight foamed concrete road surface structure, comprises the following steps：
1) basic unit 1 is laid on soil matrix surface：The basic unit includes rubble, is compacted rubble using smooth surface road roller to flatten；
2) horizontal waterproof layer is laid：Horizontal waterproof layer is laid on the surface of basic unit 1, the horizontal waterproof layer is by the first waterproof
The mutually overlap joint of film 2 is constituted；
3) laying surrounding waterproof layer 6：In the surrounding laying surrounding waterproof layer 6 of concrete layer 4, the surrounding waterproof layer 6 is wrapped
Include the second waterproofing membrane 62 and the second waterproof coating layer 61；The bottom of surrounding waterproof layer 6 overlaps with horizontal waterproof layer；
4) drainage blanket 3 is laid：It is the PVC drain pipe of 3m in the surface laying spacing of horizontal waterproof layer；
5) concrete layer 4 is laid：Galvanized metal is laid successively in the space that horizontal waterproof layer and surrounding waterproof layer 6 are surrounded
Net 41, pour light-weight foamed concrete and laying galvanized metal net 41；When pouring light-weight foamed concrete, PVC drain pipe is blocked
Close hanging plate 610 a side outlet；When there is ponding, the side outlet for opening the close hanging plate 610 of PVC drain pipe is arranged
Water；
6) surface layer is laid：After the laying of concrete layer 4 is completed 7 days, using organic silicon water-proofing coating on the surface of concrete layer 4
Three sprayings are carried out, the usage amount of water-repellent paint is 1kg/m during spraying every time2, ultimately form the first waterproof that thickness is 1mm and apply
The bed of material 5.Second waterproof coating layer 61 is formed by and the identical spraying method of the first waterproof coating layer 5.
Embodiment 2
As shown in Fig. 2 the difference compared with Example 1 of the light-weight foamed concrete road surface structure of the present embodiment is：Treat
The surrounding in the region of filled and process lightweight concrete is surrounded by hanging plate 610, and the surrounding waterproof layer 6 is all by the second water-repellent paint
Layer 61 is constituted, after the thickness of the waterproof coating layer 62 of first waterproof coating layer 61 and second is 1.5mm, including four layers of solidification
Organic silicon water-proofing coating, each layer solidification after water-repellent paint laying amount be 0.9kg/m2。
Embodiment 3
As shown in figure 3, the difference compared with Example 1 of the light-weight foamed concrete road surface structure of the present embodiment is：Treat
The surrounding in the region of filled and process lightweight concrete is surrounded by the step 620 that mechanical equivalent of light excavation is formed, and the surrounding waterproof layer 6 is all
It is made up of the second waterproofing membrane 62, the seam length that second waterproofing membrane 62 is overlapped with horizontal waterproof layer is 30cm, seam
Place is using organic silicon water-proofing coating bonding；The thickness of first waterproof coating layer 5 is 2mm, including anti-after five layers of solidification
Water paint, the laying amount of the water-repellent paint after each layer of solidification is 0.8kg/m2。
Claims (9)
1. light-weight foamed concrete road surface structure, it is characterised in that：
Including the basic unit (1), horizontal waterproof layer, drainage blanket (3), concrete layer (4), the surface layer that are sequentially arranged on soil matrix；
The basic unit (1) is including rubble；The horizontal waterproof layer includes the first waterproofing membrane (2)；The drainage blanket (3) includes row
Water pipe；The concrete layer (4) includes light-weight foamed concrete；The surface layer includes the first waterproof coating layer (5)；
Also include the surrounding waterproof layer (6) that bottom is connected with horizontal waterproof layer (2), the concrete layer (4) is located at surrounding waterproof
In the space that layer (6) is surrounded with horizontal waterproof layer (2)；The surrounding waterproof layer (6) including the second waterproofing membrane (62) and/or
Second waterproof coating layer (61).
2. light-weight foamed concrete road surface structure as claimed in claim 1, it is characterised in that：First waterproof coating layer
(5) thickness is 1-2mm；The thickness of second waterproof coating layer (61) is 1-2mm；First waterproof coating layer (5) and/
Or second waterproof coating layer (61) include 2-5 layers solidification after water-repellent paint.
3. light-weight foamed concrete road surface structure as claimed in claim 2, it is characterised in that：The water-repellent paint is organosilicon
Water-repellent paint；The laying amount of the water-repellent paint after each layer of solidification is 0.8-1kg/m2。
4. light-weight foamed concrete road surface structure as claimed in claim 1, it is characterised in that：The concrete layer (4) it is upper
Surface and/or lower surface are provided with wire netting (41).
5. light-weight foamed concrete road surface structure as claimed in claim 1, it is characterised in that：First waterproofing membrane (2)
It is geomembrane；Seam length >=the 10cm of adjacent first waterproofing membrane overlap joint；Second waterproofing membrane (62) is thin for geotechnique
Film；Seam length >=the 10cm of adjacent second waterproofing membrane (62) overlap joint；Second waterproofing membrane (62) is thin with the first waterproof
Seam length >=the 10cm of film (2) overlap joint；Seam crossing is bonded using water-repellent paint.
6. light-weight foamed concrete road surface structure as claimed in claim 1, it is characterised in that：The drainpipe is PVC drainings
Pipe；The arrangement spacing of the drainpipe is 3-7m.
7. the construction method of light-weight foamed concrete road surface structure, comprises the following steps：
1) basic unit (1) is laid on soil matrix surface：The basic unit includes rubble；
2) horizontal waterproof layer is laid：Horizontal waterproof layer is laid on the surface of basic unit (1), the horizontal waterproof layer includes the first waterproof
Film (2)；
3) laying surrounding waterproof layer (6)：Surrounding waterproof layer (6), the surrounding waterproof layer bag are laid in the surrounding of concrete layer (4)
Include the second waterproofing membrane (62) and/or the second waterproof coating layer (61)；Taken with horizontal waterproof layer surrounding waterproof layer (6) bottom
Connect；
4) laying drainage blanket (3)：It is the drainpipe of 3-7m in the surface laying spacing of horizontal waterproof layer；
5) laying concrete layer (4)：Light-weight foamed coagulation is poured in the space that horizontal waterproof layer and surrounding waterproof layer (6) are surrounded
Soil；
6) surface layer is laid：Surface layer is laid behind concrete layer (4) laying deadline >=7 day, the surface layer includes the first waterproof
Dope layer (5).
8. the construction method of light-weight foamed concrete road surface structure as claimed in claim 7, it is characterised in that：Described first prevents
The thickness of water paint layer (5) is 1-2mm；The thickness of second waterproof coating layer (61) is 1-2mm；First water-repellent paint
Layer (5) and/or the second waterproof coating layer (61) include the water-repellent paint after 2-5 layers of solidification.
9. the construction method of light-weight foamed concrete road surface structure as claimed in claim 8, it is characterised in that：The waterproof is applied
Expect to be organic silicon water-proofing coating；The laying amount of the water-repellent paint after each layer of solidification is 0.8-1kg/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052889.1A CN106758644A (en) | 2017-01-22 | 2017-01-22 | Light-weight foamed concrete road surface structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052889.1A CN106758644A (en) | 2017-01-22 | 2017-01-22 | Light-weight foamed concrete road surface structure and its construction method |
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| Publication Number | Publication Date |
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| CN106758644A true CN106758644A (en) | 2017-05-31 |
Family
ID=58942607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710052889.1A Pending CN106758644A (en) | 2017-01-22 | 2017-01-22 | Light-weight foamed concrete road surface structure and its construction method |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700307A (en) * | 2017-11-03 | 2018-02-16 | 固远晨通科技发展有限公司 | A kind of light-concrete structure and its construction method with high-durability energy |
| CN108342939A (en) * | 2018-01-08 | 2018-07-31 | 深圳市东进技术服务有限公司 | A kind of anti-ponding type asphalt pavement construction method |
| CN109826066A (en) * | 2019-03-14 | 2019-05-31 | 广西双象建设工程有限责任公司 | A kind of road structure and construction method of light soil roadbed combination steel-pipe pile |
| CN111979863A (en) * | 2020-08-17 | 2020-11-24 | 中铁八局集团第三工程有限公司 | Construction method for filling high embankment by using foam lightweight concrete adjacent to high-speed rail |
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| CN206581100U (en) * | 2017-01-22 | 2017-10-24 | 苏谦 | Light-weight foamed concrete road surface structure |
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| CN104264557A (en) * | 2014-08-28 | 2015-01-07 | 杭州江润科技有限公司 | Semi-filling and semi-excavating ecological subgrade structure and construction method |
| CN204097823U (en) * | 2014-08-28 | 2015-01-14 | 德州市公路工程总公司 | One is partly filled out and is partly dug ecological road structure |
| CN204715136U (en) * | 2015-04-20 | 2015-10-21 | 西南交通大学 | A kind of road-bridge transition section road structure |
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| CN107700307A (en) * | 2017-11-03 | 2018-02-16 | 固远晨通科技发展有限公司 | A kind of light-concrete structure and its construction method with high-durability energy |
| CN108342939A (en) * | 2018-01-08 | 2018-07-31 | 深圳市东进技术服务有限公司 | A kind of anti-ponding type asphalt pavement construction method |
| CN109826066A (en) * | 2019-03-14 | 2019-05-31 | 广西双象建设工程有限责任公司 | A kind of road structure and construction method of light soil roadbed combination steel-pipe pile |
| CN111979863A (en) * | 2020-08-17 | 2020-11-24 | 中铁八局集团第三工程有限公司 | Construction method for filling high embankment by using foam lightweight concrete adjacent to high-speed rail |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |