CN217629218U - Roadbed structure for controlling uneven settlement of road and bridge transition section - Google Patents
Roadbed structure for controlling uneven settlement of road and bridge transition section Download PDFInfo
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- CN217629218U CN217629218U CN202221362966.6U CN202221362966U CN217629218U CN 217629218 U CN217629218 U CN 217629218U CN 202221362966 U CN202221362966 U CN 202221362966U CN 217629218 U CN217629218 U CN 217629218U
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Abstract
The utility model discloses a roadbed structure of uneven settlement of control road bridge changeover portion belongs to civil engineering technical field, include: the multilayer of setting between abutment and road bed adds the muscle layer, add the muscle layer and include: the geocell is installed between the abutment and the roadbed through a connecting mechanism, and the geocell is filled with fillers; the geogrid is laid on the geocell; and a reinforced concrete surface layer is arranged on the reinforced rib layer. Through set up geogrid between the geotechnological check room, strengthened the stability and the bearing capacity of road bed, effectively prevent the fill loss between the multilayer geotechnological check room and the road bed that causes warp, prevent to take place to subside and improved the effect of eliminating uneven settlement.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to roadbed structure of control road bridge changeover portion differential settlement.
Background
The transition section is a section which needs special treatment when the roadbed is connected with a structure and the like; is the key of the uneven settlement control of the subgrade. The root cause of the uneven settlement of the bridge head transition section is the rigidity difference between the bridge abutment and the filler behind the bridge abutment, the bridge abutment is formed by pouring reinforced concrete, the strength is high, the compression deformation generated under the action of the upper driving load and the dead weight is very small, the bottom of the bridge abutment is supported by a pile foundation, and the vertical displacement of the top surface of the whole bridge abutment structure can be ignored; compared with an abutment, the rigidity of the road behind the abutment is much lower, and the road top surface can generate certain vertical displacement due to compression settlement of roadbed fillers and consolidation settlement of foundations, so that uneven settlement can occur between the abutment and the road behind the abutment.
Chinese patent CN 206328672U discloses an improved road-bridge transition section structure, which comprises a bridge abutment, a geocell, a bridge abutment connector, a geocell connector, and a connecting bolt; a plurality of geocell chambers are arranged between the abutment and the bottom surface of the roadbed; the end part of the geocell is provided with a geocell connector; the abutment connector is fixed on one side of the abutment; the geocell connector and the abutment connector are hinged through a connecting bolt. The trapezoidal flexible butt strap is a three-dimensional structure and a reinforcement mechanism which utilize a geocell reinforcement layer, the forming integrity is good, the flexible structure layer with high rigidity is formed, the modulus gradual change principle is adopted, settlement factors of a foundation and a roadbed are considered simultaneously, a trapezoidal reinforcement area is arranged at a road and bridge transition section, the flexible structure layer is fixed on the abutment for one section, the other end of the flexible structure layer is connected with the roadbed, stable transition of modulus of the rigid abutment and the flexible roadbed is realized, overlarge uneven settlement is eliminated, a stable settlement transition section is formed, and the purpose of preventing abutment jumping is achieved. However, the areas between the geocells are prone to sedimentation only due to filling of the filler among the geocells, and after the geocells are installed, in the road compaction process, the geocells are shifted due to lateral displacement of the filler, so that the effect of eliminating excessive uneven sedimentation is affected.
Therefore, it is necessary to provide a roadbed structure for controlling the uneven settlement of the transition section of the road bridge to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a for solve among the prior art region between the geotechnological check room and easily take place to subside, eliminate the not problem that differential settlement effect is poor.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a roadbed structure of uneven settlement of control road bridge changeover portion, include: the multilayer of setting between abutment and road bed adds the muscle layer, add the muscle layer and include:
the geocell is installed between the bridge abutment and the roadbed through a connecting mechanism, and filler is filled in the geocell;
the geogrid is laid on the geocell;
and a reinforced concrete surface layer is arranged on the reinforced rib layer.
Further, the connection mechanism includes:
the installation panel is installed on the abutment and the roadbed, a plurality of installation grooves are formed in the installation panel in parallel, a first elastic belt is installed in each installation groove, and a first hook is fixedly connected to the end, far away from the bottom wall of each installation groove, of each first elastic belt;
and a second hook is arranged on the geocell through a second elastic belt, and the first hook is matched with the second hook so that the geocell is connected with or separated from the installation panel.
Furthermore, a clamping groove is formed in the installation panel and located on one side of the installation groove, and the first hook is connected with the second hook and then located in the clamping groove.
Further, the height of the second hook is consistent with the height of the geocell.
Furthermore, the cell side wall of the geocell is provided with a plurality of water permeable holes.
Further, the height of the geocell is 0.2m.
The beneficial effects of the utility model reside in that: through set up geogrid between the geotechnological check room, strengthened the stability and the bearing capacity of road bed, effectively prevent the fill loss between the multilayer geotechnological check room and the road bed that causes warp, prevent to take place to subside and improved the effect of eliminating uneven settlement.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the specification which follows.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a single-layer reinforced layer according to an embodiment of the present invention;
fig. 3 is a top view of the connection mechanism according to the embodiment of the present invention.
The drawings are numbered as follows: 1. an abutment; 2, roadbed; 3. a reinforcing rib layer; 301. a geocell; 302. a geogrid; 4. adding a reinforced concrete surface layer; 5. a connecting mechanism; 501. installing a panel; 502. mounting grooves; 503. a first elastic band; 504. a first hook; 505. a second elastic band; 506. a second hook; 507. and (4) clamping the groove.
Detailed Description
Referring to fig. 1 to 3, the present invention provides a roadbed structure for controlling uneven settlement of a bridge transition section, comprising: the multilayer of setting between abutment 1 and road bed 2 adds muscle layer 3, add muscle layer 3 includes: the geocell 301 is installed between the bridge abutment 1 and the roadbed 2 through a connecting mechanism 5, and the geocell 301 is filled with fillers; the geogrid 302 is laid on the geocell 301; and a reinforced concrete surface layer 4 is arranged on the reinforced rib layer 3.
The working principle of the technical scheme is as follows: as shown in fig. 1, during construction, firstly, the geocell 301 is connected with the abutment 1 and the roadbed 2 through the connecting mechanism 5, then, after filling the geocell 301 with the filler, the compaction operation is performed, after compaction, the geogrid 302 is laid on the compacted filler and the geocell 301, then, the geocell 301 of the second layer is installed, the construction steps are repeated, and after the reinforcement layer 3 is constructed, the construction of the reinforced concrete surface layer 4 is performed.
The beneficial effects of the above technical scheme are as follows: through the design of above-mentioned structure, through set up geogrid 302 between geotechnological check room 301, strengthened the stability and the bearing capacity of road bed, effectively prevent the road bed that the filler between the multilayer geotechnological check room 301 runs off and cause and warp, prevent to take place to subside and improved the effect of eliminating uneven settlement.
In an embodiment of the present invention, the connection mechanism 5 includes: the installation panel 501 is installed on the bridge abutment 1 and the roadbed 2, a plurality of installation grooves 502 are formed in the installation panel 501 side by side, a first elastic belt 503 is installed in the installation grooves 502, and a first hook 504 is fixedly connected to the bottom wall end, far away from the installation grooves 502, of the first elastic belt 503; a second hook 506 is installed on the geocell 301 through a second elastic band 505, and the first hook 504 and the second hook 506 are matched to connect or disconnect the geocell 301 with the installation panel 501.
The working principle of the technical scheme is as follows: as shown in fig. 3, when installing the geocell 301, the first hook 504 is pulled to stretch the first elastic band 503, and then the second hook 506 is hung on the first hook 504, and the first hook 504 is released, and the first hook 504 retracts under the action of the first elastic band 503 to drive the second hook 506 to abut against the installation panel 501.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, easy to assemble geotechnological check room 301 practices thrift the manpower, and has strengthened the deformability when installing geotechnological check room 301 through first elastic webbing 503 and second elastic webbing 505, avoids leading to geotechnological check room 301 can not stable the installation on installation panel 501 because the width of changeover portion and the width error of geotechnological check room 301.
In an embodiment of the present invention, a clamping groove 507 is disposed on the mounting panel 501, the clamping groove 507 is located on one side of the mounting groove 502, and the first hook 504 and the second hook 506 are connected and then located in the clamping groove 507.
The working principle of the technical scheme is as follows: as shown in fig. 3, after the second hook 506 is connected to the first hook 504, the first hook 504 retracts under the action of the first elastic band 503, and drives the second hook 506 to abut against the fastening groove 507.
The beneficial effects of the above technical scheme are that: carry on spacingly through chucking groove 507 to second couple 506, make geotechnological check room 301 installation back, the second couple 506 chucking has improved the planarization behind geotechnological check room 301 installs on installation panel 501 in chucking groove 507, makes the difference in every check room space after geotechnological check room 301 installs less to stability has been improved.
In an embodiment of the present invention, the height of the second hook 506 is the same as the height of the geocell 301.
The working principle and the beneficial effects of the technical scheme are as follows: because the geocell 301 has a certain height, the second hook 506 is as high as the geocell 301, so that the lateral deviation of the connecting part of the geocell 301 after installation can be avoided.
In one embodiment of the present invention, the cell sidewall of the geocell 301 is provided with a plurality of water permeable holes.
The working principle and the beneficial effects of the technical scheme are as follows: the soil body expansion caused by water accumulation in the geocell 301 is avoided, and the drainage capacity is enhanced by arranging the water permeable holes.
In one embodiment of the present invention, the height of the geocell 301 is 0.2m.
The working principle and the beneficial effects of the technical scheme are as follows: when the height of the geocell 301 is 0.2m, namely the distance between two layers of geogrids 302 is 0.2m, the constraint action of the geogrids on the total deformation, the lateral deformation and the axial deformation of the reinforced earth is very obvious, wherein the constraint action on the lateral deformation is most obvious, the lateral deformation of the reinforced earth is small and uniform and coordinated, the requirement on the rigidity of the reinforced earth is reduced, and the performance of the reinforced earth is still superior to that of the traditional reinforced earth structure using the reinforced earth with higher rigidity by adopting the reinforced material with lower rigidity.
Finally, the above preferred embodiments are only intended to illustrate the technical solution of the invention and not to limit it, while the invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention defined by the claims.
Claims (6)
1. The utility model provides a roadbed structure of control road bridge changeover portion differential settlement which characterized in that includes: the multilayer of setting between abutment and road bed adds the muscle layer, add the muscle layer and include:
the geocell is installed between the abutment and the roadbed through a connecting mechanism, and the geocell is filled with fillers;
the geogrid is laid on the geocell;
and a reinforced concrete surface layer is arranged on the reinforced rib layer.
2. The roadbed structure for controlling the uneven settlement of the road-bridge transition section, wherein the connecting mechanism comprises:
the installation panel is installed on the abutment and the roadbed, a plurality of installation grooves are formed in the installation panel in parallel, a first elastic belt is installed in each installation groove, and a first hook is fixedly connected to the end, far away from the bottom wall of each installation groove, of each first elastic belt;
and a second hook is arranged on the geocell through a second elastic belt, and the first hook is matched with the second hook so that the geocell is connected with or separated from the installation panel.
3. The roadbed structure for controlling the uneven settlement of the road bridge transition section, according to claim 2, is characterized in that: the mounting panel is provided with a clamping groove, the clamping groove is located on one side of the mounting groove, and the first hook is connected with the second hook and then located in the clamping groove.
4. The roadbed structure for controlling the uneven settlement of the road bridge transition section, according to claim 2, is characterized in that: the height of the second hook is consistent with that of the geocell.
5. The roadbed structure for controlling the uneven settlement of the road-bridge transition section as claimed in claim 1, wherein: and a plurality of water permeable holes are formed in the cell side wall of the geocell.
6. The roadbed structure for controlling the uneven settlement of the road bridge transition section, according to claim 1, is characterized in that: the height of the geocell is 0.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221362966.6U CN217629218U (en) | 2022-06-01 | 2022-06-01 | Roadbed structure for controlling uneven settlement of road and bridge transition section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221362966.6U CN217629218U (en) | 2022-06-01 | 2022-06-01 | Roadbed structure for controlling uneven settlement of road and bridge transition section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217629218U true CN217629218U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221362966.6U Active CN217629218U (en) | 2022-06-01 | 2022-06-01 | Roadbed structure for controlling uneven settlement of road and bridge transition section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217629218U (en) |
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2022
- 2022-06-01 CN CN202221362966.6U patent/CN217629218U/en active Active
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