CN213772766U - New and old road bed widens concatenation roadbed structure - Google Patents
New and old road bed widens concatenation roadbed structure Download PDFInfo
- Publication number
- CN213772766U CN213772766U CN202022698533.5U CN202022698533U CN213772766U CN 213772766 U CN213772766 U CN 213772766U CN 202022698533 U CN202022698533 U CN 202022698533U CN 213772766 U CN213772766 U CN 213772766U
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- Prior art keywords
- roadbed
- layer
- old
- cement
- new
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- 239000004568 cement Substances 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000012634 fragment Substances 0.000 claims description 13
- 239000004575 stone Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 abstract description 18
- 230000000087 stabilizing effect Effects 0.000 description 17
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to the technical field of road paving, in particular to a new and old roadbed widening spliced roadbed structure, which comprises an old roadbed, wherein the right end of the bottom of the old roadbed is provided with a fixed layer, the top end of the fixed layer is provided with a cement gravel layer, the top end of the cement gravel layer is provided with a cement stable layer, the top end of the cement stable layer is provided with an asphalt gravel layer, the top end of the asphalt gravel layer is provided with an asphalt stable layer, the left parts of the bottoms of the cement gravel layer, the cement stable layer, the asphalt gravel layer and the asphalt stable layer, which are contacted with the old roadbed, are respectively provided with a groove, keels are arranged inside each groove, the right end of the top of each keel is provided with a steel plate, the splicing surface of the old roadbed is designed into a ladder shape, so that the contact area between the new roadbed and the old roadbed is increased, inside the groove that can pour into some pitch and cement into, improved the stability after new road bed and the concatenation of old road bed.
Description
Technical Field
The utility model relates to a road paving technical field specifically is a concatenation roadbed structure is widened to new and old road bed.
Background
As is well known, in recent years, with rapid development of Chinese economy and rapid increase of traffic volume, the number of highway transportation demands in China is increased year by year, the traffic flow of some existing expressways has been saturated, and widening and modification are urgently needed to improve the traffic capacity of the expressways, so as to meet the rapid development demands of modern economy.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a can improve stability and prevent that old and new road bed of junction crackle from widening concatenation roadbed structure.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concatenation roadbed structure is widened to new and old road bed, including old road bed, the right-hand member of the bottom of old road bed is provided with the fixed bed, the top of fixed bed is provided with the cement metalling, the top on cement metalling is provided with the cement stabilizing layer, the top on cement stabilizing layer is provided with the pitch metalling, the top on pitch metalling is provided with the pitch stabilizing layer, the cement metalling, the cement stabilizing layer, the left part of the bottom on pitch metalling and pitch stabilizing layer all is provided with the recess with the bottom of old road bed contact surface, the inside of every recess all is provided with fossil fragments, the right-hand member at the top of every fossil fragments all is provided with the steel sheet.
Furthermore, the right end of the old roadbed is in a ladder shape.
Furthermore, the fixed layer is made of large crushed stones.
Further, the height of the keel is higher than the height of the groove.
Furthermore, the keel and the steel plate are made of metal steel.
Furthermore, the right end of the top of the keel is connected with the left end of the steel plate through welding.
(III) advantageous effects
Compared with the prior art, the utility model provides a concatenation roadbed structure is widened to new and old road bed possesses following beneficial effect:
this concatenation roadbed structure is widened to new and old road bed, splice the face through with the old road bed and set up to the echelonment, the area of contact between new road bed and the old road bed has been increased, and play the effect of support to new road bed, can combine the inside of the recess that partial pitch and cement pour into, play new road bed and old road bed and combine more stable effect, the setting through fossil fragments and the setting of iron plate prevent that new and old road bed from appearing the crackle because of subsiding, the stability after new road bed and the concatenation of old road bed has been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a left side view structure diagram of the present invention.
In the figure: 1. old roadbed; 2. a fixed layer; 3. a cement crushed stone layer; 4. a cement stabilization layer; 5. a crushed asphalt layer; 6. an asphalt stabilizing layer; 7. a keel; 8. and (3) a steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the new and old roadbed widens splicing roadbed structure of the utility model comprises an old roadbed 1, the right end of the bottom of the old roadbed 1 is provided with a fixed layer 2, the foundation is stabilized well by big stone, the top end of the fixed layer 2 is provided with a cement gravel layer 3, the gap of the fixed layer is filled with cement and small gravel, the top end of the cement gravel layer is horizontal, the top end of the cement gravel layer 3 is provided with a cement stabilizing layer 4, the cement stabilizing layer 4 and the cement gravel layer 3 are stabilized by cement and fine sand stone, the top end of the cement stabilizing layer 4 is provided with an asphalt gravel layer 5, the asphalt layer is fixed, the top end of the asphalt gravel layer 5 is provided with an asphalt stabilizing layer 6, the whole new roadbed is reinforced, vehicles run on the top end of the asphalt stabilizing layer 6, the cement gravel layer 3, the cement stabilizing layer 4, the left part of the bottom end of the asphalt gravel layer 5 and the asphalt stabilizing layer 6 and the bottom end of the old roadbed 1 contact surface are all provided with grooves, the inside of every recess all is provided with fossil fragments 7, makes cement and pitch add the recess, combines into reinforced concrete with fossil fragments 7, makes new road bed and old road bed junction more stable, and the right-hand member at the top of every fossil fragments 7 all is provided with steel sheet 8, plays ascending holding power and prevents that new road bed and old road bed junction from coming out the crackle.
The right end of the old roadbed 1 is in a ladder shape, so that the contact area between the new roadbed and the old roadbed is increased, and the effect of supporting the new roadbed is achieved.
Wherein, the material of fixed layer 2 is the bold rubble material, makes the ground of new road bed more stable.
Wherein, the height of recess is higher for the height of fossil fragments 7, and the right-hand member and the steel sheet at the top of fossil fragments 7 of being convenient for are connected.
The keel 7 and the steel plate 8 are made of metal steel, so that the steel plate has good hardness and plays a better supporting role.
Wherein, the right-hand member at the top of fossil fragments 7 and the left end of steel sheet 8 pass through welded connection, can provide ascending holding power for the junction of new road bed and old road bed after 8 left ends of steel sheet and the right-hand member at fossil fragments 7 tops are fixed firm.
To sum up, the spliced roadbed structure is widened in the new roadbed and the old roadbed, when the spliced roadbed structure is used, the keels 7 are respectively installed inside the grooves of the old roadbed 1, the fixing layer 2 is laid, the steel plate 8 is laid at the top end between the gap of the old roadbed 1 and the fixing layer 2, the steel plate 8 and the keels 7 are connected by welding, the cement gravel layer 3 is laid and tamped, after the cement gravel layer 3 is dried by air, the steel plate 8 is laid at the top end between the old roadbed 1 and the cement gravel layer 3, the steel plate 8 and the keels 7 are connected by welding, the cement stabilizing layer 4 is laid and tamped, after the cement stabilizing layer 4 is dried by air, the steel plate 8 is laid at the top end between the old roadbed 1 and the cement stabilizing layer 4, the steel plate 8 and the keels 7 are connected by welding, the asphalt gravel layer 5 is laid and tamped, after the asphalt gravel layer 5 is dried by air, the steel plate 8 is laid at the top end between the old roadbed 1 and the asphalt gravel layer 5, and (3) well connecting the steel plate 8 and the keel 7 by welding, and paving and tamping the asphalt stabilizing layer 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a concatenation roadbed structure is widened to new and old road bed, includes old road bed (1), its characterized in that: the right-hand member of the bottom of old road bed (1) is provided with fixed bed (2), the top of fixed bed (2) is provided with cement gravel layer (3), the top of cement gravel layer (3) is provided with cement stable layer (4), the top of cement stable layer (4) is provided with pitch gravel layer (5), the top of pitch gravel layer (5) is provided with pitch stable layer (6), the left part of the bottom of cement gravel layer (3), cement stable layer (4), pitch gravel layer (5) and pitch stable layer (6) and the bottom of old road bed (1) contact surface all are provided with recess, every the inside of recess all is provided with fossil fragments (7), every the right-hand member at the top of fossil fragments (7) all is provided with steel sheet (8).
2. The widening spliced roadbed structure of the old roadbed and the new roadbed according to claim 1, wherein the spliced roadbed structure comprises: the right end of the old roadbed (1) is in a ladder shape.
3. The widening spliced roadbed structure of the old roadbed and the new roadbed according to claim 1, wherein the spliced roadbed structure comprises: the fixed layer (2) is made of large crushed stones.
4. The widening spliced roadbed structure of the old roadbed and the new roadbed according to claim 1, wherein the spliced roadbed structure comprises: the height of the keel (7) is higher than that of the groove.
5. The widening spliced roadbed structure of the old roadbed and the new roadbed according to claim 1, wherein the spliced roadbed structure comprises: the keel (7) and the steel plate (8) are both made of metal steel.
6. The widening spliced roadbed structure of the old roadbed and the new roadbed according to claim 1, wherein the spliced roadbed structure comprises: the right-hand member of the top of fossil fragments (7) and the left end of steel sheet (8) pass through welded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698533.5U CN213772766U (en) | 2020-11-20 | 2020-11-20 | New and old road bed widens concatenation roadbed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698533.5U CN213772766U (en) | 2020-11-20 | 2020-11-20 | New and old road bed widens concatenation roadbed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213772766U true CN213772766U (en) | 2021-07-23 |
Family
ID=76879467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022698533.5U Expired - Fee Related CN213772766U (en) | 2020-11-20 | 2020-11-20 | New and old road bed widens concatenation roadbed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213772766U (en) |
-
2020
- 2020-11-20 CN CN202022698533.5U patent/CN213772766U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |