CN208748685U - High semi-filling and semi-excavating section integration pavement structure - Google Patents
High semi-filling and semi-excavating section integration pavement structure Download PDFInfo
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- CN208748685U CN208748685U CN201821452346.5U CN201821452346U CN208748685U CN 208748685 U CN208748685 U CN 208748685U CN 201821452346 U CN201821452346 U CN 201821452346U CN 208748685 U CN208748685 U CN 208748685U
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Abstract
The utility model discloses a kind of high semi-filling and semi-excavating section integration pavement structures, are related to road construction field of engineering technology.It provides a kind of high semi-filling and semi-excavating section integration pavement structure for avoiding road surface that differential settlement occurs.Including retaining wall and roadbed, the roadbed includes excavation side and embankment side, the retaining wall is set to the outside of embankment side, it further include the cantilever bridging piece as road surface, the retaining wall top surface is provided with the first supporting surface, excavation dypass face is provided with the second supporting surface, and cantilever bridging piece side is set on the first supporting surface, and the other side is set on the second supporting surface.Cantilever bridging piece is set on retaining wall and excavation side as pavement of road, making cantilever bridging piece, embankment side and retaining wall, structure bears road vehicles load jointly as a whole, reduce the load that roadbed is transferred to by road surface, it solves the problems such as differential settlement, road surface longitudinal crack on road center line two sides road surface, guarantees road surface general safety stability and road-ability.
Description
Technical field
The utility model relates to road construction field of engineering technology, and in particular to a kind of high semi-filling and semi-excavating section integration road
Face structure.
Background technique
In road engineering in a mountainous area construction, often there is the case where high semi-filling and semi-excavating, existing high semi-filling and semi-excavating section road surface is common
As shown in figure 3, be excavation side 4 at the high slope in the right side of road center line 2, the 2 low-lying place in left side of road center line is embankment side 3 for construction,
The outside that embankment side 3 is arranged in retaining wall 1 is used to stop the roadbed of embankment side 3, and the original soil subgrade of excavation side 4 is dug
Pick is filled into the low-lying place of embankment side 3, graded broken stone base is then laid on original soil subgrade, finally in graded broken stone base
Concrete road surface surface layer is laid on layer, to be formed for current road surface.
Since 2 two sides height difference of road Cross Section road center line is larger, usually in road surface range embankment side 3 using thickening road
Base course keeps 3 roadbed of embankment side and 4 subgrade rating of excavation side, the modulus of resilience close, reduces road in operation use process
The differential settlement of 2 two sides of road center line, prevents the generation of longitudinal crack, or laying high-ductility polyester has spinning in subgrade soils
Geotextiles improve the total bearing capacity and rigidity of base and roadbed, and the entirety for reducing 3 roadbed of embankment side and 4 roadbed of excavation side is rigid
It is poor to spend, and still, either thickeies roadbase or lays geotextiles in base, and 3 roadbed of embankment side is embankment soil, is partly filled out in height
Half digs section is influenced by compacting equipment work landform limitation, and 3 roadbed of embankment side is difficult to reach compacting requirement, and bearing capacity and roadbed are whole
Body rigidity is smaller, and 4 roadbed of excavation side is undisturbed soil or rock, and bearing capacity and subgrade stiffness are larger, with the road occupation time
Differential settlement can inevitably occur for passage, 2 two sides road surface of road axis, cause road surface longitudinal crack to generate, influence road surface road
Base general safety stability and road-ability.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of height for avoiding road surface that differential settlement occurs partly to fill out
Half digs section integration pavement structure.
The technical scheme adopted by the utility model to solve the technical problem is as follows: high semi-filling and semi-excavating section integration road surface knot
Structure, including retaining wall and roadbed, the roadbed include excavation side and embankment side, and the retaining wall is set to the outer of embankment side
Side, further includes the cantilever bridging piece as road surface, and the retaining wall top surface is provided with the first supporting surface, the setting of excavation dypass face
There is the second supporting surface, cantilever bridging piece side is set on the first supporting surface, and the other side is set on the second supporting surface.
Further, the embedded bar for extending retaining wall top surface, the extension of embedded bar are provided in the retaining wall
It is partially attached on cantilever bridging piece.
Further, the retaining wall bottom surface is provided with weight bearing foundation, and the weight bearing foundation passes through connection structure and earth-retaining
Wall is connected.
Further, the connection structure includes boss and groove, and the boss is connected in groove, boss and groove point
It is not set on weight bearing foundation and retaining wall.
Further, the boss is set on weight bearing foundation, and the groove is set on retaining wall.
Further, the weight bearing foundation is set as reinforced concrete structure.
Further, first supporting surface and the second supporting surface keep same level.
Further, it is provided with transverse steel and longitudinal reinforcement in the cantilever bridging piece, the transverse steel is arranged in a crossed manner
In on longitudinal reinforcement.
The beneficial effects of the utility model are: the high semi-filling and semi-excavating section integration pavement structure of the application, in retaining wall
Setting cantilever bridging piece is as pavement of road on excavation side, and making cantilever bridging piece, embankment side and retaining wall, structure is common as a whole
Road vehicles load is born, reduces the load for being transferred to roadbed by road surface, solves the uneven of road center line two sides road surface
The problems such as sedimentation, road surface longitudinal crack, guarantees road surface roadbed general safety stability and road-ability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is reinforcing bar arrangement schematic diagram inside cantilever bridging piece；
Fig. 3 is the existing common constructing structure schematic diagram in high semi-filling and semi-excavating section road surface；
It is as shown in the figure: 1- retaining wall；2- road center line；3- embankment side；4- excavation side；5- cantilever bridging piece；6- pre-buried steel
Muscle；7- transverse steel；8- longitudinal reinforcement；9- weight bearing foundation.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the high semi-filling and semi-excavating section integration pavement structure of the utility model, including retaining wall 1 and roadbed,
The roadbed includes excavation side 4 and embankment side 3, and with road center line 2 for benchmark line, the side higher than road center line 2 is
Excavation side 4, the side lower than road center line 2 is embankment side 3, and the retaining wall 1 is set to the outside of embankment side 3, further includes
As the cantilever bridging piece 5 on road surface, 1 top surface of retaining wall is provided with the first supporting surface, and 4 road surface of excavation side is provided with second
Supporting surface, 5 side of cantilever bridging piece are set on the first supporting surface, and the other side is set on the second supporting surface, the first support
As 5 side of the first supporting point supporting cantilever bridging piece, the second supporting surface is another as the second supporting point supporting cantilever bridging piece 5 in face
Side, the supporting point of two sides realize the gentle support of cantilever bridging piece 5 jointly, guarantee cantilever bridging piece 5 being set to retaining wall 1 and excavation
It is used as pavement usage, retaining wall 1 and excavation side 4 to form an overall structure as two supporting points and cantilever bridging piece 5 on side 4 to be total to
With road vehicles load is born, reduce the load that roadbed is transferred to by road surface, the influence of roadbed mechanical characteristic road pavement is almost
Zero, it avoids being difficult to reach compacting requirement because of high semi-filling and semi-excavating section filled-up ground, 3 roadbed of embankment side and 4 roadbed of excavation side carry
The bad phenomenons such as road surface differential settlement, road surface longitudinal crack caused by the mechanical characteristics difference such as power and subgrade stiffness is larger,
Guarantee road surface roadbed general safety stability and road-ability.
For the globality that reinforced retaining wall 1 is connect with cantilever bridging piece 5, it is provided in the retaining wall 1 and extends earth-retaining
The embedded bar 6 of 1 top surface of wall, the extension of embedded bar 6 are connected on cantilever bridging piece 5.6 a part of embedded bar is embedded in
In retaining wall 1, increase the structural strength of retaining wall 1, another extension is connected in cantilever bridging piece 5, can not only increase outstanding
The structural strength of arm bridging piece 5, and the connection integrity of the two can be increased, make cantilever bridging piece 5 and 3 roadbed of embankment side, earth-retaining
Structure bears road vehicles load to wall 1 jointly as a whole.
Since retaining wall 1 and cantilever bridging piece 5 form an entirety, therefore retaining wall 1 can also bear certain road vehicles
Load, in order to reduce the load-bearing stress of 1 bottom of retaining wall, 1 bottom surface of retaining wall is provided with weight bearing foundation 9, the load-bearing bottom
Seat 9 is connected by connection structure with retaining wall 1.The setting of weight bearing foundation 9 strengthens the load-bearing capacity of retaining wall 1, is able to extend
The service life of retaining wall 1.
Retaining wall 1 can be directly connected on weight bearing foundation 9, but in long-term load bearing situation, retaining wall 1 with
The case where being easy to appear displacement between weight bearing foundation 9, therefore, the connection structure include boss and groove, the boss connection
In in groove, boss and groove are respectively arranged on weight bearing foundation 9 and retaining wall 1.The boss can be set in weight bearing foundation 9
On, it also can be set on retaining wall 1, the groove equally can be set on weight bearing foundation 9, also can be set in retaining wall
On 1, when boss is set on weight bearing foundation 9, groove is set on retaining wall 1, when boss is set on retaining wall 1,
Groove is arranged on weight bearing foundation 9, using the connection structure of boss groove structure, retaining wall 1 is enabled to be connected to load-bearing
On pedestal 9, a limitation position-limiting action is played between each other, avoids the occurrence of the generation of misalignment.
Groove can be set on weight bearing foundation 9, but can reduce the thickness of weight bearing foundation 9 to a certain extent, and reduction is held
The intensity of weight pedestal, a kind of preferred mode is that the boss is set on weight bearing foundation 9, and the groove is set to retaining wall 1
On.Boss is set on weight bearing foundation 9 to the thickness that can guarantee weight bearing foundation 9, it is ensured that the structural stability of weight bearing foundation 9,
Due to retaining wall 1, thickness itself is big, and groove is set on retaining wall 1 will not cause too big shadow to the structural strength of itself
It rings, the set-up mode of boss and groove can guarantee the stability of pavement usage.
In order to further strengthen the structural strength of weight bearing foundation 9, guarantee stability when load-bearing, the weight bearing foundation 9 is set
It is set to reinforced concrete structure.Reinforced concrete structure can preferably keep the globality of structure, undertake because of concrete shrinkage
With stress caused by temperature change, and receiving vehicular load.
In order to keep the stationarity in vehicle travel process, first supporting surface and the second supporting surface keep same level
Face.
In order to further strengthen the structural strength of cantilever bridging piece 5, transverse steel 7 is provided in the cantilever bridging piece 5 and indulge
To reinforcing bar 8, the transverse steel 7 is arranged in a crossed manner on longitudinal reinforcement 8.Transverse steel 7 with longitudinal reinforcement 8 is arranged in a crossed manner can be more
The stability of good holding 5 internal structure of cantilever bridging piece, enhancing structure intensity are improved by weight bearing power.
Claims (8)
1. high semi-filling and semi-excavating section integration pavement structure, including retaining wall (1) and roadbed, the roadbed includes excavation side (4)
And embankment side (3), the retaining wall (1) are set to the outside of embankment side (3), it is characterised in that: further include as road surface
Cantilever bridging piece (5), retaining wall (1) top surface are provided with the first supporting surface, and excavation side (4) road surface is provided with the second support
Face, cantilever bridging piece (5) side are set on the first supporting surface, and the other side is set on the second supporting surface.
2. high semi-filling and semi-excavating section integration pavement structure as described in claim 1, it is characterised in that: the retaining wall (1)
It is inside provided with the embedded bar (6) for extending retaining wall (1) top surface, the extension of embedded bar (6) is connected to cantilever bridging piece
(5) on.
3. high semi-filling and semi-excavating section integration pavement structure as described in claim 1, it is characterised in that: the retaining wall (1)
Bottom surface is provided with weight bearing foundation (9), and the weight bearing foundation (9) is connected by connection structure with retaining wall (1).
4. high semi-filling and semi-excavating section integration pavement structure as claimed in claim 3, it is characterised in that: the connection structure packet
Boss and groove are included, the boss is connected in groove, and boss and groove are respectively arranged at weight bearing foundation (9) and retaining wall (1)
On.
5. high semi-filling and semi-excavating section integration pavement structure as claimed in claim 4, it is characterised in that: the boss is set to
On weight bearing foundation (9), the groove is set on retaining wall (1).
6. high semi-filling and semi-excavating section integration pavement structure as claimed in claim 3, it is characterised in that: the weight bearing foundation
(9) it is set as reinforced concrete structure.
7. high semi-filling and semi-excavating section integration pavement structure as described in claim 1, it is characterised in that: first supporting surface
Same level is kept with the second supporting surface.
8. high semi-filling and semi-excavating section integration pavement structure as described in claim 1, it is characterised in that: the cantilever bridging piece
(5) it is provided with transverse steel (7) and longitudinal reinforcement (8) in, the transverse steel (7) is arranged in a crossed manner on longitudinal reinforcement (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452346.5U CN208748685U (en) | 2018-09-05 | 2018-09-05 | High semi-filling and semi-excavating section integration pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452346.5U CN208748685U (en) | 2018-09-05 | 2018-09-05 | High semi-filling and semi-excavating section integration pavement structure |
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| Publication Number | Publication Date |
|---|---|
| CN208748685U true CN208748685U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821452346.5U Active CN208748685U (en) | 2018-09-05 | 2018-09-05 | High semi-filling and semi-excavating section integration pavement structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512778A (en) * | 2019-09-05 | 2019-11-29 | 上海市房地产科学研究院（上海市住宅修缮工程质量检测中心） | A kind of bridging piece and its construction technology for clay brick facade |
| CN114438839A (en) * | 2020-10-31 | 2022-05-06 | 中交路桥建设有限公司 | Construction method of half-fill and half-cut roadbed |
-
2018
- 2018-09-05 CN CN201821452346.5U patent/CN208748685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512778A (en) * | 2019-09-05 | 2019-11-29 | 上海市房地产科学研究院（上海市住宅修缮工程质量检测中心） | A kind of bridging piece and its construction technology for clay brick facade |
| CN114438839A (en) * | 2020-10-31 | 2022-05-06 | 中交路桥建设有限公司 | Construction method of half-fill and half-cut roadbed |
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