CN209652671U - A kind of improvement road structure - Google Patents
A kind of improvement road structure Download PDFInfo
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- CN209652671U CN209652671U CN201920007759.0U CN201920007759U CN209652671U CN 209652671 U CN209652671 U CN 209652671U CN 201920007759 U CN201920007759 U CN 201920007759U CN 209652671 U CN209652671 U CN 209652671U
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- constraint
- rammed earth
- dike
- road structure
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Abstract
The utility model discloses a kind of improvement road structures, including surface layer, drainage blanket, water barrier and supporting layer, the supporting layer includes constraint dike and rammed earth layer, the vertical sectional shape of the constraint dike is in isosceles trapezoidal structure, two constraint dikes are arranged in parallel, and the rammed earth layer is located between two constraint dikes, and the water barrier is laid on the supporting layer, it is laid with the drainage blanket on the water barrier, the surface layer is laid on the drainage blanket.Compared with prior art, the utility model is provided with the constraint dike of high-strength structure, rammed earth layer is provided between two constraint dikes, rammed earth layer itself has good enabling capabilities, simultaneously, it constrains dike and constraint is formed to rammed earth layer, the deformation of rammed earth layer is prevented, to further improve the enabling capabilities of rammed earth layer.
Description
Technical field
The utility model relates to road structure, in particular to a kind of improvement road structure.
Background technique
Road is built in soft clay area, often uses cement injection pile, mixing pile or CFG Ground Treatment.Due to Soft Soil Layer
Thicker, the shape thickness bearing capacity of ground is lower, when roadbed is higher, although ground meets design carrying when detection of compound foundation
The requirement of power, but in use, as time increases, highway subgrade will also tend to that there is a phenomenon where cut sliding destruction.
Engineering practice and scientific experiment show: in soft clay area, the sliding destruction of cutting of roadbed is often a certain pile elder generation in soft soil roadbed
It is disconnected by curved scissors, then there are several constantly to fracture, clump of piles cutting can then occur, and then occur roadbed it is whole slide break it is bad, it is this
The main reason for phenomenon is: roadbed is flexible structure, and meeting on the sandstone mattress layer in ground is often exactly subgrade soils, because between stake
Shape thickness bearing capacity of foundation slab is lower, under the action of roadbed load, will form the larger shearing to stake top position, because of such base
The shearing resistance of stake, bending resistance are poor, so just will form above-mentioned breakoff phenomenon.In view of this, the present inventor passes through further investigation,
Obtain a kind of improvement road structure.
Utility model content
The purpose of the utility model is to provide a kind of improvement road structure, with stable structure, with long service life excellent
Point.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of improvement road structure, including surface layer, drainage blanket, water barrier and supporting layer, the supporting layer include constraint dike
Vertical sectional shape with rammed earth layer, the constraint dike is in isosceles trapezoidal structure, and two constraint dikes are arranged in parallel, the rammed earth
Layer is located between two constraint dikes, and the water barrier is laid on the supporting layer, the draining is laid on the water barrier
Layer, the surface layer is laid on the drainage blanket.
It is further to improve: the reinforcing bar of more uniform parallels arrangement, the length of the reinforcing bar are equipped on the rammed earth layer
Direction is parallel with the width direction of the rammed earth layer.
Further to improve: the constraint dike upper surface is equipped with shelves slot, the reinforcing bar with the reinforcing bar correspondingly
Both ends are held on set on two constraint dikes shelve in slot respectively.
Further to improve: the constraint dike is built up using cement.
Further to improve: the water barrier is lime soil layer.
Further to improve: the drainage blanket is metalling.
It is further to improve: the metalling by bulky grain rubble and little particle rubble by mixing in proportion, it is described
The partial size of bulky grain rubble is 3cm-6cm, and the partial size of the little particle rubble is 0.5cm-1cm.
Further to improve: the surface layer is pervious asphalt layer.
Compared with prior art, the utility model provides a kind of improvement road structure, and the supporting layer of setting has good
Supporting role, be capable of providing good support effect, avoid Subgrade Subsidence, to improve the structural stability of roadbed, prolong
The service life of long roadbed；Specifically: its constraint dike for being provided with high-strength structure is provided with rammed earth between two constraint dikes
Layer, rammed earth layer itself have good enabling capabilities, meanwhile, constraint dike forms rammed earth layer and constrains, the deformation of rammed earth layer is prevented,
To further improve the enabling capabilities of rammed earth layer.
Detailed description of the invention
Fig. 1 is that the utility model relates to a kind of structural schematic diagrams for improveing road structure.
Fig. 2 is that the utility model relates to the fit structure top views of the constraint dike and reinforcing bar of a kind of improvement road structure.
In figure
Surface layer -1；Drainage blanket -2；Water barrier -3；
Constrain dike -41；Shelve slot -411；Rammed earth layer -42；
Reinforcing bar -43.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
As shown in Figure 1 and Figure 2, a kind of improvement road structure, including surface layer 1, drainage blanket 2, water barrier 3 and supporting layer, it is described
Supporting layer includes constraint dike 41 and rammed earth layer 42, and the vertical sectional shape of the constraint dike 41 is in isosceles trapezoidal structure, described in two
Constraint dike 41 is arranged in parallel, and the rammed earth layer 42 is located between two constraint dikes 41, be laid on the supporting layer described in every
Water layer 3 is laid with the drainage blanket 2 on the water barrier 3, the surface layer 1 is laid on the drainage blanket 2.
It is laid with a kind of process for improveing road structure are as follows: build the constraint dike 41 first, build in constraint dike 41
The rammed earth layer 42 is laid with after good, rammed earth layer 42 is compacted with road roller, and water proof is then successively up laid on rammed earth layer 42
Layer 3, drainage blanket 2 and surface layer 1.
The rammed earth layer 42 itself has good enabling capabilities, the cross of the constraint dike 41 due to being compacted by road roller
Section is in isosceles trapezoidal structure, has good structural stability, and the constraint dike 41 forms the side of the rammed earth layer 42
Support, so that the enabling capabilities of rammed earth layer 42 are further promoted, therefore the supporting layer is shown generally as having good support
Ability and structural stability can effectively extend the service life of roadbed.
In order to further enhance the enabling capabilities of supporting layer, more uniform parallel arrangements are equipped on the rammed earth layer 42
Reinforcing bar 43, the length direction of the reinforcing bar 43 is parallel with the width direction of the rammed earth layer 42, and the reinforcing bar 43 can be to water proof
Layer 3, drainage blanket 2 and surface layer 1 provide good enabling capabilities, so that roadbed is more not easy to collapse.
Specifically, the both ends of the reinforcing bar 43 can directly ride upon on the constraint dike 41, and for the reinforcing bar 43
Setting is convenient and integrally-built stability, peculiar following setting: as shown in Fig. 2, 41 upper surface of constraint dike equipped with
The reinforcing bar 43 shelves slot 411 correspondingly, and 43 both ends of reinforcing bar are held on two constraint dikes 41 set respectively
Shelve in slot 411.
Further, the constraint dike 41 is built up using cement, and the water barrier 3 is lime soil layer, and the surface layer 1 is permeable
Bitumen layer.
Further, the drainage blanket 2 is metalling, and the metalling is by bulky grain rubble and little particle rubble by proportion
It mixes, the partial size of the bulky grain rubble is 3cm-6cm, and the partial size of the little particle rubble is 0.5cm-1cm.Using big
The mode that particle rubble and little particle rubble match can be obviously improved roadbed performance, if single use bulky grain rubble, due to
Gap between bulky grain rubble is larger, be easy to cause road structure unstable, so that surface layer 1 is easy cracking, if singly adopting
With little particle rubble, since the gap between little particle rubble is smaller, drainage space is small, so that drainage performance is poor, is easy
Ponding is caused, and the mode that bulky grain rubble and little particle rubble match is using between little particle rubble filling bulky grain rubble
Gap, in the case, gap between rubble both uses gap when bulky grain rubble big unlike single, also unlike single use
Gap when little particle rubble is small, to obtain more appropriate drainage gap, guarantees while providing good drainage effect
The stability of roadbed.
The above-mentioned description to embodiment is to understand convenient for those skilled in the art and using originally practical new
Type, person skilled in the art obviously easily can make various modifications to embodiment, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to the above embodiments,
Those skilled in the art's announcement according to the present utility model, does not depart from improvement that the utility model scope is made and modification is all answered
This is within the protection scope of the utility model.
Claims (8)
1. a kind of improvement road structure, it is characterised in that: including surface layer, drainage blanket, water barrier and supporting layer, the supporting layer packet
Constraint dike and rammed earth layer are included, the vertical sectional shape of the constraint dike is in isosceles trapezoidal structure, and two constraint dikes are arranged in parallel,
The rammed earth layer is located between two constraint dikes, and the water barrier is laid on the supporting layer, is laid on the water barrier
The drainage blanket is laid with the surface layer on the drainage blanket.
2. a kind of improvement road structure according to claim 1, it is characterised in that: be equipped with more on the rammed earth layer uniformly
The reinforcing bar of parallel arrangement, the length direction of the reinforcing bar are parallel with the width direction of the rammed earth layer.
3. a kind of improvement road structure according to claim 2, it is characterised in that: the constraint dike upper surface be equipped with it is described
Reinforcing bar shelves slot correspondingly, and the reinforcing bar both ends are held on set on two constraint dikes shelve in slot respectively.
4. a kind of improvement road structure according to any one of claims 1 to 3, it is characterised in that: the constraint dike uses
Cement is built up.
5. a kind of improvement road structure according to claim 4, it is characterised in that: the water barrier is lime soil layer.
6. a kind of improvement road structure according to claim 4, it is characterised in that: the drainage blanket is metalling.
7. a kind of improvement road structure according to claim 6, it is characterised in that: the metalling is by bulky grain rubble and small
Particle rubble by mixing in proportion, and the partial size of the bulky grain rubble is 3cm-6cm, and the partial size of the little particle rubble is
0.5cm-1cm。
8. a kind of improvement road structure according to claim 4, it is characterised in that: the surface layer is pervious asphalt layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920007759.0U CN209652671U (en) | 2019-01-03 | 2019-01-03 | A kind of improvement road structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920007759.0U CN209652671U (en) | 2019-01-03 | 2019-01-03 | A kind of improvement road structure |
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| Publication Number | Publication Date |
|---|---|
| CN209652671U true CN209652671U (en) | 2019-11-19 |
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| CN201920007759.0U Active CN209652671U (en) | 2019-01-03 | 2019-01-03 | A kind of improvement road structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250660A (en) * | 2022-01-26 | 2022-03-29 | 杨浩然 | Method for reducing subgrade settlement deformation |
-
2019
- 2019-01-03 CN CN201920007759.0U patent/CN209652671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250660A (en) * | 2022-01-26 | 2022-03-29 | 杨浩然 | Method for reducing subgrade settlement deformation |
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