CN205775811U - A kind of structure being applied to abutment roadbed - Google Patents
A kind of structure being applied to abutment roadbed Download PDFInfo
- Publication number
- CN205775811U CN205775811U CN201620512115.3U CN201620512115U CN205775811U CN 205775811 U CN205775811 U CN 205775811U CN 201620512115 U CN201620512115 U CN 201620512115U CN 205775811 U CN205775811 U CN 205775811U
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- eps
- abutment
- block group
- layer
- roadbed
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model discloses a kind of structure being applied to abutment roadbed, including EPS block group and adapter, EPS block group is arranged between abutment and soil body roadbed, the A side of EPS block group is connected with the platform back side of abutment, the B side of EPS block group is connected with soil body roadbed, EPS block group lays the two ends to abutment along the axis direction of abutment, and adapter is arranged in EPS block group.Part after abutment platform is banketed and is replaced with expanded polystyrene (EPS) block by this utility model, solves the big and uneven depression of the settling amount banketed because of Abutment Back and the problem of bump at bridgehead that causes, it is ensured that the stability of pavement structure, reduces maintenance cost；And greatly reduce the pressure in the lateral pressure and ground acting on abutment, the thickness that thus can reduce abutment, the quantity reducing pile foundation and the requirement of reduction foundation bearing capacity, save construction costs.
Description
Technical field
This utility model relates to a kind of structure being applied to abutment roadbed, belongs to technical field of bridge engineering.
Background technology
Generally fill the preferable earth rock material of water penetration after the abutment platform of bridge, but due to the soil body after abutment concrete and platform
Deformation modulus difference is excessive, fill compaction construction is difficult to control to the deformation of the soil body long with the time one relatively greatly, can cause the soil body after platform
Bigger sedimentation and uneven depression occur, and the problem of bump at bridgehead occurs, and then destroy pavement structure, increase and safeguard into
This, also contribute to traffic safety simultaneously；If it addition, finite element is big, banketing after platform the highest, then act on the native side on abutment
Pressure is the biggest, then be accomplished by large-sized bridge abutment structure and greater number of pile foundation to resist earth lateral pressure produce moment of flexure with
Shearing, thus increase the cost of bridge.
Utility model content
The purpose of this utility model is, it is provided that a kind of structure being applied to abutment roadbed, and this structure can solve because of bridge
The sedimentation of soil body roadbed and uneven depression after platform platform and the problem of bump at bridgehead that produces, and can greatly reduce the soil body one
Side acts on the lateral pressure on abutment, thus can use the bridge abutment structure of reduced size, small number of pile foundation, reduces bridge
Cost.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that: a kind of abutment roadbed of being applied to
Structure, including EPS block group and adapter, EPS block group is arranged between abutment and soil body roadbed, the A side of EPS block group and abutment
The platform back side linking, the B side of EPS block group is connected with soil body roadbed, EPS block group along abutment axis direction laying to abutment
Two ends, if the two ends of abutment are provided with aileron, then EPS block group extends at the wall back of the body of aileron.Adapter is arranged at EPS block group
On, the type of adapter needs according to acting on the vertical stress in EPS block group, EPS block interfacial friction angle and flood with arranging
Straight snips stress is determined.
In aforesaid a kind of structure being applied to abutment roadbed, described EPS block group includes at least one of which EPS layer.
In aforesaid a kind of structure being applied to abutment roadbed, every layer of EPS layer includes at least one piece of expanded polystyrene (EPS) block
Body, expanded polystyrene (EPS) block is rectangular-shaped.Expanded polystyrene (EPS) is that a kind of polystyrene resin adds foaming agent, adds simultaneously
Heat softens, and produces gas, forms the foam plastics of a kind of rigid closed cell structure, and the density of expanded polystyrene (EPS) is little, intensity
Height, and there is the features such as preferable insulated heat performance, anti-permeability performance and stronger self-stability energy, therefore use foaming polyphenyl second
The expanded polystyrene (EPS) block that alkene plastics material is formed can improve intensity and the deformation performance of the soil body.Sending out of different layers will be in
Vertical lap seam between foamed polystyrene block 5 is staggeredly arranged, it is ensured that the stability of EPS layer.
In aforesaid a kind of structure being applied to abutment roadbed, described soil body roadbed and the interface of B side are stepped,
B side is inverted steps shape, and gradient α of banketing of soil body roadbed is 40 degree～50 degree.The size of α determines according to the type banketed,
The soil body that self-stability energy is good can suddenly, and the soil body that self-stability can differ from then needs slow, to ensure saving EPS block group paving
In the case of the amount of building, the lateral pressure making to act on abutment as far as possible little.
In aforesaid a kind of structure being applied to abutment roadbed, on the top surface of described EPS block group, making has pavement structure
Layer.
In aforesaid a kind of structure being applied to abutment roadbed, the foaming polyphenyl comprised from the EPS layer on upper strata to lower floor
The block number of ethylene block is successively decline mode, or the expanded polystyrene (EPS) block arranged from the EPS layer of lower floor to upper strata
Block number is the pattern successively increased, and the vertical lap seam between the expanded polystyrene (EPS) block of different EPS layers is staggeredly arranged, with
Strengthen vertical shear resistance and the stability of entirety thereof of EPS block group.
In aforesaid a kind of structure being applied to abutment roadbed, described adapter connects two neighbouring EPS layers；Even
Connecing device is steel bolt adapter, cork adapter or EPS bolt adapter.
In aforesaid a kind of structure being applied to abutment roadbed, described EPS block group is layed in compactness and meets engine request
Banket, undisturbed soil or fill out on husky levelling soil matrix.
In aforesaid a kind of structure being applied to abutment roadbed, described EPS block group includes an EPS layer, is arranged at first
The 2nd EPS layer bottom EPS layer, it is arranged at the 3rd EPS layer bottom the 2nd EPS layer and is arranged at the of the EPS block group bottom
Four EPS layers, the elevation of the EPS layer of the bottom is below or equal to road surface, outside or the elevation on ground.
Compared with prior art, the part after abutment platform is banketed and is replaced with expanded polystyrene (EPS) block by this utility model,
The problem of the bump at bridgehead solving the big and uneven depression of the settling amount banketed because of Abutment Back and cause, it is ensured that road surface
The stability of structure, reduces maintenance cost；And greatly reduce the pressure in the lateral pressure and ground acting on abutment
Power, the thickness that thus can reduce abutment, the quantity reducing pile foundation and the requirement of reduction foundation bearing capacity, thus save engineering and make
Valency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference: 1-abutment, 2-soil body roadbed, 3-EPS block group, 4-EPS layer, 5-expanded polystyrene (EPS) block, 6-A side
Face, 7-B side, 8-road surface structare layer, 9-the oneth EPS layer, 10-the 2nd EPS layer, 11-the 3rd EPS layer, 12-the 4th EPS layer,
13-adapter.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Embodiment 1 of the present utility model: a kind of structure being applied to abutment roadbed, this structure includes EPS block group 3 and steel bolt
Adapter 13, EPS block group 3 is arranged between abutment 1 and soil body roadbed 2, and the A side 6 of EPS block group 3 is held in the mouth with the platform back side of abutment 1
Connecing, the B side 7 of EPS block group 3 is connected with soil body roadbed 2, and EPS block group 3 is laid to the two of abutment 1 along the axis direction of abutment 1
End, steel bolt adapter 13 is arranged in EPS block group 3.EPS block group 3 includes the EPS layer 4 on upper strata, the EPS layer 4 in middle level and lower floor
EPS layer 4, the elevation of the EPS layer 4 of lower floor be less than road surface, outside or the elevation on ground.Steel bolt adapter 13 connects neighbouring
Two EPS layers 4, to ensure the stability between adjacent EPS layer 4.The foaming comprised from the EPS layer 4 on upper strata to lower floor
The block number of polystyrene block 5 is successively decline mode.The EPS layer 4 of lower floor is made up of 1 piece of expanded polystyrene (EPS) block 5, middle level
EPS layer 4 be made up of 1.5 pieces of expanded polystyrene (EPS) blocks 5, the EPS layer 4 of lower floor is made up of 2 pieces of expanded polystyrene (EPS) blocks 5.
Vertical lap seam between the expanded polystyrene (EPS) block 5 of different layers is staggeredly arranged.Every layer of EPS layer 4 includes at least one block of foaming polyphenyl
Ethylene block 5, expanded polystyrene (EPS) block 5 is rectangular-shaped.Soil body roadbed 2 and the interface of B side 7 are stepped, B side
7 is inverted steps shape, and gradient α of banketing of soil body roadbed 2 is 40 degree.On the top surface of EPS block group 3, making has road surface structare layer 8.
EPS block group 3 is layed in compactness and meets on the banketing of engine request.
Embodiment 2 of the present utility model: a kind of structure being applied to abutment roadbed, this structure includes EPS block group 3 and cork
Adapter 13, EPS block group 3 is arranged between abutment 1 and soil body roadbed 2, and the A side 6 of EPS block group 3 is held in the mouth with the platform back side of abutment 1
Connecing, the B side 7 of EPS block group 3 is connected with soil body roadbed 2, and EPS block group 3 is laid to the two of abutment 1 along the axis direction of abutment 1
End, cork adapter 13 is arranged in EPS block group 3.EPS block group 3 includes an EPS layer 9, is arranged at bottom an EPS layer 9
2nd EPS layer 10, it is arranged at the 3rd EPS layer 11 bottom the 2nd EPS layer 10 and is arranged at the 4th EPS of EPS block group 3 bottom
Layer 12, the elevation of the EPS layer 4 of the bottom is less than road surface, outside or the elevation on ground.Cork adapter 13 connects neighbouring
Two EPS layers 4, to ensure the stability between adjacent EPS layer 4.The foaming comprised from the EPS layer 4 on upper strata to lower floor gathers
The block number of styrene block 5 is successively decline mode.Oneth EPS layer 9 is made up of 2.5 pieces of expanded polystyrene (EPS) blocks 5, and second
EPS layer 10 is made up of 2 pieces of expanded polystyrene (EPS) blocks 5, and the 3rd EPS layer 11 is made up of 1.5 pieces of expanded polystyrene (EPS) blocks 5, the
Four EPS layers 12 are made up of 1 piece of expanded polystyrene (EPS) block 5, and the vertical lap seam between the expanded polystyrene (EPS) block 5 of different layers staggers
Arrange.Expanded polystyrene (EPS) block 5 is rectangular-shaped.Soil body roadbed 2 and the interface of B side 7 are stepped, and B side 7 is for falling
Stairstepping, gradient α of banketing of soil body roadbed 2 is 45 degree.On the top surface of EPS block group 3, making has road surface structare layer 8.EPS block
Group 3 is layed in compactness and meets on the undisturbed soil of engine request.
Embodiment 3 of the present utility model: a kind of structure being applied to abutment roadbed, this structure includes EPS block group 3 and EPS
Bolt adapter 13, EPS block group 3 is arranged between abutment 1 and soil body roadbed 2, the A side 6 of EPS block group 3 and the platform back side of abutment 1
Linking, the B side 7 of EPS block group 3 is connected with soil body roadbed 2, and EPS block group 3 is laid to abutment 1 along the axis direction of abutment 1
Two ends, EPS bolt adapter 13 is arranged in EPS block group 3.EPS bolt adapter 13 connects neighbouring two EPS layer 4, to protect
Demonstrate,prove the stability between adjacent EPS layer 4, the block of the expanded polystyrene (EPS) block 5 comprised from the EPS layer 4 on upper strata to lower floor
Number is successively decline mode.EPS block group 3 includes an EPS layer 9, is arranged at the 2nd EPS layer 10 bottom an EPS layer 9, sets
It is placed in the 3rd EPS layer 11 bottom the 2nd EPS layer 10, is arranged at the 4th EPS layer 12 bottom the 3rd EPS layer 11 and is arranged at
5th EPS layer of EPS block group 3 bottom, the elevation of the 5th EPS layer is less than the elevation on ground, outside.EPS bolt adapter 13 is arranged
In an EPS layer 9 and the 2nd EPS layer the 10, the 2nd EPS layer 10 and the 3rd EPS layer the 11, the 3rd EPS layer 11 and the 4th EPS layer 12,
On horizontal joint between 4th EPS layer 12 and the 5th EPS layer, an EPS layer 9 is made up of 3 pieces of expanded polystyrene (EPS) blocks 5, the
Two EPS layers 10 are made up of 2.5 pieces of expanded polystyrene (EPS) blocks 5, and the 3rd EPS layer 11 is made up of 2 pieces of expanded polystyrene (EPS) blocks 5,
4th EPS layer 12 is made up of 1.5 pieces of expanded polystyrene (EPS) blocks 5, and the 5th EPS layer is made up of 1 piece of expanded polystyrene (EPS) block 5.
Vertical lap seam between the expanded polystyrene (EPS) block 5 of different layers is staggeredly arranged.Every layer of EPS layer 4 includes at least one piece of foaming
Polystyrene block 5, expanded polystyrene (EPS) block 5 is rectangular-shaped.Soil body roadbed 2 and the interface of B side 7 are stepped, B
Side 7 is inverted steps shape, and gradient α of banketing of soil body roadbed 2 is 50 degree.On the top surface of EPS block group 3, making has pavement structure
Layer 8.EPS block group 3 is layed in compactness and meets the filling out on husky levelling soil matrix of engine request.
Operation principle of the present utility model:
Using EPS block group 3 to banket after replacing abutment 1 platform, the density of material of expanded polystyrene (EPS) block 5 only has compacted soil close
The 1/6 to 1/10 of degree, but non-deformability is strong, thus the EPS block group 3 laid after abutment 1 platform acts on the pressure on soil body roadbed 2
Power is the least, and in the case of the pressure comprcssive strength less than EPS block group 3, the settling amount that after platform, EPS block group 3 is long-term is much smaller than compacting
The settling amount of soil body roadbed 2, thus pavement structure can be solved and destroy and jump car problem with abutment 1；Deadweight, road in EPS block group 3
Under the effect of face structure sheaf 8 and automobile or train load, the horizontal strain of expanded polystyrene (EPS) block 5 is much smaller than soil body roadbed 2
Horizontal strain, thus the lateral pressure acting on abutment 1 is less, and the lateral pressure coefficient that typically bankets is between 0.2 to 0.35, and sends out
The lateral pressure coefficient of foamed polystyrene block 5 the most about 0.1, so can reduce the physical dimension of abutment 1 and the quantity of pile foundation, from
And save construction costs.
Claims (9)
1. the structure being applied to abutment roadbed, it is characterised in that include EPS block group (3) and adapter (13), EPS block group
(3) being arranged between abutment (1) and soil body roadbed (2), the A side (6) of EPS block group (3) is connected with the platform back side of abutment (1),
The B side (7) of EPS block group (3) is connected with soil body roadbed (2), and EPS block group (3) lays to bridge along the axis direction of abutment (1)
The two ends of platform (1), described adapter (13) is arranged on EPS block group (3).
A kind of structure being applied to abutment roadbed the most according to claim 1, it is characterised in that described EPS block group (3) is wrapped
Include at least one of which EPS layer (4).
A kind of structure being applied to abutment roadbed the most according to claim 2, it is characterised in that every layer of EPS layer (4) includes
At least one piece of expanded polystyrene (EPS) block (5), expanded polystyrene (EPS) block (5) is rectangular-shaped.
A kind of structure being applied to abutment roadbed the most according to claim 3, it is characterised in that described soil body roadbed (2)
Being stepped with the interface of B side (7), B side (7) are inverted steps shape, and gradient α of banketing of soil body roadbed (2) is 40 degree
～50 degree.
A kind of structure being applied to abutment roadbed the most according to claim 4, it is characterised in that described EPS block group (3)
On top surface, making has road surface structare layer (8).
6. according to a kind of structure being applied to abutment roadbed described in claim 2 or 5, it is characterised in that from upper strata to lower floor
EPS layer (4) in the block number of expanded polystyrene (EPS) block (5) that comprises be successively decline mode.
A kind of structure being applied to abutment roadbed the most according to claim 6, it is characterised in that described adapter (13) is even
Meet neighbouring two EPS layer (4)；Described adapter (13) is that steel bolt adapter, cork adapter or EPS tether and connect
Device.
A kind of structure being applied to abutment roadbed the most according to claim 7, it is characterised in that described EPS block group (3) spreads
It is located at compactness meet the banketing of engine request, undisturbed soil or fill out on husky levelling soil matrix.
9. according to a kind of structure being applied to abutment roadbed described in claim 1 or 8, it is characterised in that described EPS block group
(3) include an EPS layer (9), be arranged at the oneth EPS layer (9) bottom the 2nd EPS layer (10), be arranged at the 2nd EPS layer (10)
3rd EPS layer (11) of bottom and be arranged at the 4th EPS layer (12) of EPS block group (3) bottom, the EPS layer (4) of the bottom
Elevation is below or equal to road surface, outside or the elevation on ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620512115.3U CN205775811U (en) | 2016-05-31 | 2016-05-31 | A kind of structure being applied to abutment roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620512115.3U CN205775811U (en) | 2016-05-31 | 2016-05-31 | A kind of structure being applied to abutment roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205775811U true CN205775811U (en) | 2016-12-07 |
Family
ID=58138956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620512115.3U Expired - Fee Related CN205775811U (en) | 2016-05-31 | 2016-05-31 | A kind of structure being applied to abutment roadbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205775811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862575A (en) * | 2016-05-31 | 2016-08-17 | 中国华电科工集团有限公司 | Structure for abutment roadbed and model selection method for structure |
| CN110205890A (en) * | 2019-06-20 | 2019-09-06 | 中国五冶集团有限公司 | A kind of underground tunnel upper lightweight EPS road structure and its construction method |
-
2016
- 2016-05-31 CN CN201620512115.3U patent/CN205775811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862575A (en) * | 2016-05-31 | 2016-08-17 | 中国华电科工集团有限公司 | Structure for abutment roadbed and model selection method for structure |
| CN110205890A (en) * | 2019-06-20 | 2019-09-06 | 中国五冶集团有限公司 | A kind of underground tunnel upper lightweight EPS road structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200531 |