CN211872448U - Widening and splicing roadbed structure of new and old roadbed - Google Patents
Widening and splicing roadbed structure of new and old roadbed Download PDFInfo
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- CN211872448U CN211872448U CN202020201008.5U CN202020201008U CN211872448U CN 211872448 U CN211872448 U CN 211872448U CN 202020201008 U CN202020201008 U CN 202020201008U CN 211872448 U CN211872448 U CN 211872448U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The utility model discloses a concatenation roadbed structure is widened to new and old road bed, including old road bed main part and with the new road bed main part of old road bed main part concatenation, one side of old road bed main part sets up to the step form, and the step form divides into the tertiary, and the tertiary bottom inner wall of step form is the horizontal plane, one side inner wall of the two-stage that lies in the below in the step form is vertical face, and one side inner wall that lies in the one-level of top in the step form sets up to the inclined plane, new road bed main part includes rubble basic unit, sets up the low dose cement stabilization rubble layer at rubble basic unit. The utility model relates to a rationally, can effectively strengthen upwards holding power and the horizontal holding power to new road bed main part, effectively avoid sinking because of new road bed main part and the phenomenon of unevenness and horizontal fracture appears with old road bed main part, can improve the resistance to compression and the stability of new road bed main part self, improve life, be favorable to the use.
Description
Technical Field
The utility model relates to a road paving technical field especially relates to new and old road bed widens concatenation roadbed structure.
Background
With the rapid development of Chinese economy and the rapid increase of traffic volume, the number of highway transportation demands in China is increased year by year, however, through years of vehicle loads, the settlement deformation of the original road bed of the highway reaches a stable state, the highway is an essential item in national development, bears various transports, and people also have a sentence of saying, want to enrich and repair roads first.
And the newly widened part of the roadbed and the old roadbed are used for a long time, transverse cracking and downward settlement easily occur, the new roadbed and the old roadbed are uneven and separated seriously, the attractiveness is influenced, the service life is prolonged, the later-stage frequent overhauling or chiseling of the repairment phenomenon is caused, the later-stage frequent overhauling or chiseling of the repairment phenomenon is easily mistaken for bean curd residue engineering by the folk, and the problem that the connection is not firm and the service life is short is solved by providing a new roadbed and an old roadbed widening spliced roadbed structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the old and new road bed that proposes widens concatenation roadbed structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a spliced roadbed structure is widened by a new roadbed and an old roadbed, and comprises the old roadbed main body and a new roadbed main body spliced with the old roadbed main body, wherein one side of the old roadbed main body is arranged into a step shape, the step shape is divided into three levels, the inner wall of the bottom of the third level of the step shape is a horizontal plane, the inner walls of one side of two levels below the step shape are vertical planes, the inner wall of one side of one level above the step shape is arranged into an inclined plane, the new roadbed main body comprises a macadam base layer, a low-dose cement stabilized macadam layer arranged on the top of the macadam base layer, a first cement stabilized macadam layer arranged on the top of the low-dose cement stabilized macadam layer and an asphalt drainage base layer arranged on the top of the first cement stabilized macadam layer, the top of the asphalt macadam drainage base layer is arranged into a rugged shape, an asphalt surface layer is, a plurality of vertical steel bars are inserted in the uppermost horizontal plane of the three horizontal planes, one end of each horizontal steel bar close to the corresponding vertical steel bar is welded with the corresponding vertical steel bar, a plurality of L-shaped steel bars are inserted in the other two horizontal planes, one end of each horizontal steel bar close to the corresponding vertical steel bar is welded with the corresponding vertical steel bar, one end of each L-shaped steel bar close to the corresponding upper L-shaped steel bar is welded with the corresponding upper L-shaped steel bar, the right side of each upper L-shaped steel bar is welded with a first connecting bar, the right side of each lower L-shaped steel bar is welded with a second connecting bar, the right end of each second connecting bar and the right end of the corresponding first connecting bar are welded with the same vertical connecting bar, a plurality of U-shaped steel bars are arranged on the right sides of the vertical connecting bars, two adjacent U-shaped steel bars are welded, the left U-shaped steel bar in the plurality of U-shaped steel bars on the same left horizontal line is welded with the right side of the corresponding vertical, the transverse reinforcing steel bars, the vertical reinforcing steel bars, the L-shaped reinforcing steel bars, the first connecting steel bars, the second connecting steel bars, the vertical connecting steel bars and the U-shaped reinforcing steel bars are all located in the low-dosage cement stabilized gravel layer, the first cement stabilized gravel layer and the asphalt gravel drainage base layer.
Preferably, the top of the asphalt pavement is flush with the top of the old roadbed main body.
Preferably, one side of the bottom of the asphalt macadam drainage foundation is in contact with one of the three horizontal planes above.
Preferably, one side of the bottom of the first cement stabilized gravel layer is in contact with the middle horizontal plane of the three horizontal planes.
Preferably, the bottom side of the low-dose cement stabilized gravel layer is in contact with the lower one of the three levels.
Preferably, a plurality of first grooves are formed in the horizontal plane, the outer sides of the vertical steel bars are in movable contact with the inner walls of the corresponding first grooves, the outer sides of the L-shaped steel bars are in movable contact with the inner walls of the corresponding first grooves, a plurality of second grooves are formed in the inclined plane, and the inner walls of the second grooves are in movable contact with the outer sides of the corresponding transverse steel bars.
Compared with the prior art, the beneficial effects of the utility model are that:
through old roadbed main part, vertical face, the inclined plane, rubble basic unit, the rubble layer is stabilized to low dose cement, the rubble layer is stabilized to first cement, pitch rubble drainage basic unit, the pitch surface course, the horizontal bar, the vertical reinforcement, L shape reinforcing bar, first splice bar, the second splice bar, erect the splice bar, U-shaped reinforcing bar cooperatees with the horizontal plane, the effect that supports can be played in the mode of setting up of three horizontal plane, greatly reduce the junction pitch rubble drainage basic unit, the risk that rubble layer and low dose cement stabilized the rubble layer subsides downwards is stabilized to first cement, the risk that lateral displacement can effectively be reduced in the setting up of vertical reinforcement and a plurality of L shape reinforcing bars, thereby effectively avoid old roadbed main part and new roadbed main part junction to appear horizontal fracture phenomenon, the setting up of first splice bar, the second splice bar, erect splice bar and U-shaped reinforcing bar can further strengthen pitch rubble drainage basic unit, Firm stability of connection between first cement stabilized rubble layer and the low dose cement stabilized rubble layer to the resistance to compression and the stability of new road bed main part self are strengthened.
The utility model relates to a rationally, can effectively strengthen upwards holding power and the horizontal holding power to new road bed main part, effectively avoid sinking because of new road bed main part and the phenomenon of unevenness and horizontal fracture appears with old road bed main part, can improve the resistance to compression and the stability of new road bed main part self, improve life, be favorable to the use.
Drawings
Fig. 1 is the utility model provides a new and old road bed widens concatenation roadbed structure's schematic structure diagram.
In the figure: 1 old roadbed main part, 2 vertical faces, 3 inclined planes, 4 rubble basic units, the rubble layer is stabilized to 5 low dose cement, the rubble layer is stabilized to 6 first cement, 7 pitch rubble drainage basic units, 8 pitch surface courses, 9 horizontal reinforcement, 10 vertical reinforcement, 11L shape reinforcing bar, 12 first splice bar, 13 second splice bar, 14 vertical splice bar, 15U-shaped reinforcing bar, 16 horizontal planes.
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.
Referring to fig. 1, a spliced roadbed structure is widened by a new roadbed and an old roadbed, the spliced roadbed structure comprises an old roadbed main body 1 and a new roadbed main body spliced with the old roadbed main body 1, one side of the old roadbed main body 1 is arranged into a step shape, the step shape is divided into three stages, the inner walls of the bottoms of the three stages of the step shape are horizontal planes 16, the inner walls of the two stages below in the step shape are vertical planes 2, the inner wall of one stage above in the step shape is arranged into an inclined plane 3, the new roadbed main body comprises a macadam base layer 4, a low-dose cement stabilized macadam layer 5 arranged on the top of the macadam base layer 4, a first cement stabilized macadam layer 6 arranged on the top of the low-dose cement stabilized macadam layer 5 and an asphalt macadam drainage base layer 7 arranged on the top of the first cement stabilized macadam layer 6, the top of the asphalt macadam drainage base layer 7 is, a plurality of transverse steel bars 9 are inserted on the inclined plane 3, a plurality of vertical steel bars 10 are inserted on the uppermost horizontal plane 16 of the three horizontal planes 16, one ends of the transverse steel bars 9, which are close to the corresponding vertical steel bars 10, are welded with the vertical steel bars 10, a plurality of L-shaped steel bars 11 are inserted on the other two horizontal planes 16, one ends of the transverse steel bars 9, which are close to the corresponding vertical steel bars 10, are welded with the vertical steel bars 10, one ends of the L-shaped steel bars 11, which are positioned at the lower part, which are close to the corresponding L-shaped steel bars 11, are welded with the L-shaped steel bars 11, which are positioned at the upper part, first connecting bars 12 are welded at the right side of the L-shaped steel bars 11, second connecting bars 13 are welded at the right side of the L-shaped steel bars 11, which are positioned at the lower part, the same vertical connecting bars 14 are welded at the right end of the second connecting bars 13 and the corresponding first connecting bars 12, a plurality, two adjacent U-shaped reinforcing bars 15 weld mutually, be arranged in same left and right horizontal line a plurality of U-shaped reinforcing bars 15 in left U-shaped reinforcing bar 15 and the right side of corresponding perpendicular splice bar 14 weld mutually, horizontal bar 9, erect reinforcing bar 10, L-shaped reinforcing bar 11, first splice bar 12, second splice bar 13, erect splice bar 14 and U-shaped reinforcing bar 15 and all be located low dose cement and stabilize rubble layer 5, in first cement and stabilize rubble layer 6 and pitch rubble drainage basic unit 7, the utility model relates to a rationally, can effectively strengthen the upward holding power and the transverse holding power to old road bed main part 1, effectively avoid because of new road bed main part sinks and appears unevenness and horizontal fracture phenomenon with old road bed main part 1, can improve the resistance to compression and the stability of new road bed main part self, improve life, be favorable to the use.
In the utility model, the top of the asphalt surface layer 8 is flush with the top of the old roadbed main body 1, one side of the bottom of the asphalt macadam drainage basic layer 7 is contacted with an upper horizontal plane 16 in three horizontal planes 16, one side of the bottom of the first cement stabilized macadam layer 6 is contacted with a middle horizontal plane 16 in three horizontal planes 16, one side of the bottom of the low dosage cement stabilized macadam layer 5 is contacted with a lower horizontal plane 16 in three horizontal planes 16, a plurality of first grooves are arranged on the horizontal plane 16, the outer side of the vertical steel bar 10 is movably contacted with the inner wall of the corresponding first groove, the outer side of the L-shaped steel bar 11 is movably contacted with the inner wall of the corresponding first groove, a plurality of second grooves are arranged on the inclined plane 3, the inner wall of the second groove is movably contacted with the outer side of the corresponding transverse steel bar 9, the utility model has reasonable design, and can effectively strengthen the upward supporting force and the transverse supporting force to the old, effectively avoid because of new road bed main part sinks and the uneven and horizontal fracture phenomenon appears with old road bed main part 1, can improve the resistance to compression and the stability of new road bed main part self, improve life, be favorable to the use.
The working principle is as follows: the old roadbed main body 1 is arranged in a step-shaped mode, three horizontal planes 16 of the old roadbed main body are respectively in contact with the bottoms of the asphalt macadam drainage basic layer 7, the first cement stabilized gravel layer 6 and the low-dose cement stabilized gravel layer 5, the three horizontal planes can respectively play a supporting role, the risk that the asphalt macadam drainage basic layer 7, the first cement stabilized gravel layer 6 and the low-dose cement stabilized gravel layer 5 at the joints settle downwards is greatly reduced, the vertical steel bars 10 and the L-shaped steel bars 11 are arranged, the risk that the asphalt macadam drainage basic layer 7, the first cement stabilized gravel layer 6 and the low-dose cement stabilized gravel layer 5 transversely displace is effectively reduced, the transverse cracking phenomenon at the joints of the old roadbed main body 1 and the new roadbed main body is effectively avoided, and the arrangement of the first connecting bars 12, the second connecting bars 13, the vertical connecting bars 14 and the U-shaped steel bars 15 can further enhance the asphalt macadam drainage basic layer 7, The firm stability of the connection between the first cement stabilized rubble layer 6 and the low-dose cement stabilized rubble layer 5 enhances the compression resistance and stability of the new roadbed main body;
during construction, firstly, the gravel base 4 is paved, then a plurality of first grooves are arranged on the horizontal plane by adopting cutting equipment, a plurality of second grooves are arranged on the inclined plane, the transverse steel bars 9 are inserted into the corresponding second grooves, the vertical steel bars 10 are inserted into the corresponding first grooves, then the transverse steel bars 9 are welded with the corresponding vertical steel bars 10, the L-shaped steel bars 11 are inserted into the corresponding first grooves, one end of the L-shaped steel bar 11 positioned above is welded with the corresponding vertical steel bar 10, one end of the L-shaped steel bar 11 positioned below is welded with the L-shaped steel bar 11 positioned above, and then welding the first connecting rib 12, the second connecting rib 13, the vertical connecting rib 14 and the U-shaped steel rib 15 from left to right in sequence, and finally pouring and laying the low-dose cement stabilized gravel layer 5, the first cement stabilized gravel layer 6, the asphalt gravel drainage base layer 7 and the asphalt surface layer 8 from bottom to top in sequence.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. New and old road bed widens concatenation roadbed structure, including old road bed main part (1) and the new road bed main part of concatenation with old road bed main part (1), one side of old road bed main part (1) sets up to the step form, and the step form divide into three-level, and the tertiary bottom inner wall of step form is horizontal plane (16), its characterized in that, the one side inner wall of the two-level that lies in the below in the step form is vertical face (2), and the one side inner wall that lies in the one-level of top in the step form sets up to inclined plane (3), new road bed main part includes rubble basic unit (4), sets up low dose cement stabilization rubble layer (5) at rubble basic unit (4) top, sets up first cement stabilization rubble layer (6) at low dose cement stabilization rubble layer (5) top and sets up asphalt rubble drainage basic unit (7) at first cement stabilization rubble layer (6), the top of the asphalt macadam drainage foundation layer (7) is arranged to be uneven, the top of the asphalt macadam drainage foundation layer (7) is provided with an asphalt surface layer (8), a plurality of transverse steel bars (9) are inserted on the inclined plane (3), a plurality of vertical steel bars (10) are inserted on the horizontal plane (16) positioned on the top in three horizontal planes (16), one ends of the transverse steel bars (9) close to the corresponding vertical steel bars (10) are welded with the vertical steel bars (10), a plurality of L-shaped steel bars (11) are inserted on the other two horizontal planes (16), one ends of the transverse steel bars (9) positioned on the top, close to the corresponding vertical steel bars (10), are welded with the vertical steel bars (10), one ends of the L-shaped steel bars (11) positioned on the top, close to the corresponding L-shaped steel bars (11) positioned on the bottom, are welded with the L-shaped steel bars (11) positioned on the top, a first connecting bar (12) is welded on the right side of the L-shaped steel bars, a second connecting rib (13) is welded on the right side of the L-shaped reinforcing steel bar (11) positioned below, the right end of the second connecting rib (13) and the right end of the corresponding first connecting rib (12) are welded with the same vertical connecting rib (14), a plurality of U-shaped reinforcing steel bars (15) are arranged on the right side of the vertical connecting rib (14), two adjacent U-shaped reinforcing steel bars (15) are welded, one U-shaped reinforcing steel bar (15) on the left side of the plurality of U-shaped reinforcing steel bars (15) positioned on the same left and right horizontal lines is welded with the right side of the corresponding vertical connecting rib (14), the transverse reinforcing steel bars (9), the vertical reinforcing steel bars (10), the L-shaped reinforcing steel bars (11), the first connecting steel bars (12), the second connecting steel bars (13), the vertical connecting steel bars (14) and the U-shaped reinforcing steel bars (15) are all located in the low-dosage cement stabilized gravel layer (5), the first cement stabilized gravel layer (6) and the asphalt gravel drainage base layer (7).
2. The new and old roadbed widening spliced roadbed structure according to the claim 1, wherein the top of the asphalt surface layer (8) is flush with the top of the old roadbed main body (1).
3. The widening spliced roadbed structure according to claim 1, wherein the asphalt macadam drainage bed (7) is in contact with an upper one (16) of three levels (16) on a bottom side thereof.
4. The widening spliced roadbed structure according to claim 1, wherein the first cement stabilized gravel layer (6) is in contact with the middle horizontal plane (16) among the three horizontal planes (16) on the bottom side.
5. The widening spliced roadbed structure according to claim 1, wherein the bottom side of the low-dose cement stabilized gravel layer (5) is in contact with a lower one (16) of the three levels (16).
6. The new and old roadbed widening and splicing roadbed structure according to claim 1, wherein a plurality of first grooves are formed on the horizontal plane (16), the outer sides of the vertical steel bars (10) are movably contacted with the inner walls of the corresponding first grooves, the outer sides of the L-shaped steel bars (11) are movably contacted with the inner walls of the corresponding first grooves, a plurality of second grooves are formed on the inclined plane (3), and the inner walls of the second grooves are movably contacted with the outer sides of the corresponding transverse steel bars (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201008.5U CN211872448U (en) | 2020-02-24 | 2020-02-24 | Widening and splicing roadbed structure of new and old roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201008.5U CN211872448U (en) | 2020-02-24 | 2020-02-24 | Widening and splicing roadbed structure of new and old roadbed |
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| Publication Number | Publication Date |
|---|---|
| CN211872448U true CN211872448U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020201008.5U Expired - Fee Related CN211872448U (en) | 2020-02-24 | 2020-02-24 | Widening and splicing roadbed structure of new and old roadbed |
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| CN (1) | CN211872448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863072A (en) * | 2021-10-12 | 2021-12-31 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
-
2020
- 2020-02-24 CN CN202020201008.5U patent/CN211872448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863072A (en) * | 2021-10-12 | 2021-12-31 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
| CN113863072B (en) * | 2021-10-12 | 2022-09-16 | 广东深已建设工程有限公司 | Construction method for widening roadbed of concrete highway |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |