CN213740385U - Horizontal new and old road bed connection structure with waterproof function - Google Patents
Horizontal new and old road bed connection structure with waterproof function Download PDFInfo
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- CN213740385U CN213740385U CN202022529001.9U CN202022529001U CN213740385U CN 213740385 U CN213740385 U CN 213740385U CN 202022529001 U CN202022529001 U CN 202022529001U CN 213740385 U CN213740385 U CN 213740385U
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Abstract
The application relates to a transverse new and old roadbed connecting structure with a waterproof function, which comprises an old roadbed and a new roadbed fixedly arranged on the old roadbed, wherein a plurality of steps are arranged at the splicing part of the old roadbed and the new roadbed, each step comprises a water collecting surface and a vertical surface, the middle part of the water collecting surface is sunken downwards, and a drainage groove is formed in the middle part of the water collecting surface; step internal fixation on the old road bed is provided with a plurality of bolt seats, the vertical setting of bolt seat, the opening protrusion of bolt seat catchments the surface setting, be provided with a plurality of through-holes that correspond with bolt seat position on the new road bed, wear to be equipped with a plurality of threaded rods in the through-hole, the threaded rod is used for with the cooperation of bolt seat, fixes the relative position between old road bed and the new road bed. This application has the waterproof performance and the drainage performance's of strengthening new road bed and old road bed junction effect, can reduce the repeated construction because of the road bed junction fracture causes simultaneously, save material improves the feature of environmental protection.
Description
Technical Field
The application relates to the technical field of road and bridge construction, in particular to a transverse new and old roadbed connecting structure with a waterproof function.
Background
The roadbed is a foundation of a railway track or a road surface, and is a necessary condition for constructing a railway or a road, and bears the self weight of a body and the weight of a road surface structure, and also bears the load of a vehicle running above the road surface, so that the load is dispersed and transmitted to the deep part of the foundation.
Along with the development of the infrastructure of China, the number of highway extension projects is increased, in the highway extension projects, connection of new and old roadbeds is particularly important, water is easily accumulated at the connection part of the new and old roadbeds, so that the problems that the new roadbeds are easy to collapse and the like under the soaking of rainwater or accumulated water are caused, the new and old roadbeds crack, and further, the new construction is required, resources are wasted, and the environment is not favorable.
SUMMERY OF THE UTILITY MODEL
In order to reduce the problem of new and old road bed junction ponding, this application provides a horizontal new and old road bed connection structure with waterproof function.
The application provides a horizontal new and old road bed connection structure with waterproof function adopts following technical scheme:
a transverse new and old roadbed connecting structure with a waterproof function comprises an old roadbed and a new roadbed fixedly arranged on the old roadbed, wherein a plurality of steps are arranged at the splicing position of the old roadbed and the new roadbed, each step comprises a water collecting surface and a vertical surface, the middle part of the water collecting surface is downwards sunken, and a drainage groove is formed in the middle part of the water collecting surface;
step internal fixation on the old road bed is provided with a plurality of bolt seats, the vertical setting of bolt seat, the opening protrusion of bolt seat catchments the surface setting, be provided with a plurality of through-holes that correspond with bolt seat position on the new road bed, wear to be equipped with a plurality of threaded rods in the through-hole, the threaded rod is used for with the cooperation of bolt seat, fixes the relative position between old road bed and the new road bed.
By adopting the technical scheme, the steps are arranged on the old roadbed and are connected with the new roadbed step by step, so that the connection strength between the new roadbed and the old roadbed can be enhanced, meanwhile, as the density of the settled soil of the old roadbed is high, the tensile stress at the joint of the new roadbed and the old roadbed can be relieved by step connection, part of load of the new roadbed can be shared, the fracture of the joint caused by excessive settlement of the new roadbed is prevented, the seeper is further reduced from permeating into the roadbed from the joint of the new roadbed and old roadbed, the middle part of the water collection surface on the step is sunken downwards, the seeper can be accumulated at the middle part, and the seeper can be discharged from the water collection surface through the drainage groove;
threaded rod and bolt seat are mutually supported threaded connection, can fix the relative position on the horizontal direction between new and old road bed, make and connect stably between new and old road bed, and tensile strength is higher.
Optionally, the gap between the threaded rod and the through hole is filled with a filling layer, and the filling layer is set to be an asphalt mastic material layer.
By adopting the technical scheme, the filling layer can fill the gap between the threaded rod and the through hole and fix the position of the threaded rod in the new roadbed; meanwhile, the asphalt mastic material has elasticity, so that the threaded rod has a certain moving space in the through hole, and the risk that the threaded rod is broken due to overlarge tension between a new roadbed and an old roadbed can be reduced.
Optionally, the bolt seat is of a conical structure, the thick end of the bolt seat is embedded in the step, and the thin end of the bolt seat protrudes out of the surface of the water collecting surface.
Through adopting above-mentioned technical scheme, the bolt seat is the toper structure, and thicker one end buries underground in the step for the bolt seat side can receive the pressure effect of compaction earth in the step, increases the tensile strength of bolt seat.
Optionally, waterproof layers are arranged on the water collecting surface and the vertical surface of the step.
Through adopting above-mentioned technical scheme, the waterproof layer can prevent effectively that ponding from permeating to the step in, alleviates the step support intensity that the infiltration caused and descends, junction fracture scheduling problem.
Optionally, the new roadbed sets gradually metalling, inverted filter, bed course and surface course from supreme down, be provided with a plurality of honeycomb duct in the new roadbed, honeycomb duct one end is connected at the opening part in drainage groove, and the other end is connected to drainage pipe.
Through adopting above-mentioned technical scheme, the honeycomb duct can lead to drainage system with the ponding of drainage inslot, avoids the rainwater to build up too long time on the step, and then influences the inside stability of road bed.
Optionally, the number of the draft tubes is the same as the number of the steps.
Through adopting above-mentioned technical scheme, the one end and the honeycomb duct of drainage groove on every level of step are connected, make ponding on every level of step discharge smoothly.
Optionally, a plurality of groups of reinforcing steel bars are arranged in the old roadbed, the reinforcing steel bars are perpendicular to the vertical surface, one ends of the reinforcing steel bars are inserted into the old roadbed, and the other ends of the reinforcing steel bars are inserted into the new roadbed.
Through adopting above-mentioned technical scheme, the reinforcing bar is connected in old road bed and new road bed to the vertical face of perpendicular to can strengthen the longitudinal strength of new and old road bed junction, prevents the junction fracture of new and old road bed.
Optionally, a waterproof filling layer is poured at the joint of the old roadbed and the new roadbed.
Through adopting above-mentioned technical scheme, waterproof filling layer can play preliminary waterproof effect, alleviates surface gathered water and permeates downwards from the seam of new old roadbed junction, has certain bonding ability simultaneously, can bond new roadbed and old roadbed together.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steps arranged on the old roadbed can bear part of the load of the new roadbed, so that the new roadbed and the old roadbed are prevented from being separated and broken, meanwhile, the water collecting surfaces of the steps are inwards sunken, and the drainage grooves are arranged, so that collected water at the joints of the new roadbed and the old roadbed can be guided together and then discharged;
2. the bolt seats in the steps are matched and connected with the threaded rods in the new roadbed, so that the transverse connection strength between the new steps and the old steps can be enhanced;
3. the reinforcing steel bars are connected in the steps and the new roadbed, so that the longitudinal connection strength between the new steps and the old steps can be enhanced.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic diagram showing an internal structure of fig. 1.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Description of reference numerals: 1. old roadbed; 11. reinforcing steel bars; 2. a new roadbed; 21. a through hole; 22. a threaded rod; 23. a filling layer; 24. a flow guide pipe; 3. a step; 31. water collecting surface; 32. a vertical plane; 33. a drainage groove; 34. a bolt seat; 35. a waterproof layer; 4. a crushed stone layer; 5. a reverse filtering layer; 6. a cushion layer; 7. a surface layer; 8. and (4) a waterproof filling layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses horizontal new and old road bed connection structure with waterproof function. Referring to fig. 1 and 2, the transverse new and old roadbed connecting structure comprises an old roadbed 1, a new roadbed 2 and steps 3, wherein the steps 3 and the old roadbed 1 are of an integral structure, the steps 3 are provided with three stages, each step 3 is provided with a water collecting surface 31 and a vertical surface 32, the middle part of the water collecting surface 31 is vertically sunken downwards, two inclined surfaces are formed on the water collecting surface 31, and the middle part of the water collecting surface 31 is provided with an arc-shaped drainage groove 33; the accumulated water is gathered in the drainage groove 33 on the inclined plane under the action of self gravity, so that the accumulated water is prevented from permeating into the rest parts of the step 3; the water collecting surface 31 and the vertical surface 32 of the step 3 are coated with a waterproof layer 35 to enhance the anti-seepage capability of the step 3.
The novel roadbed 2 sequentially comprises a crushed stone layer 4, a reverse filtering layer 5, a cushion layer 6 and a surface layer 7 from bottom to top, all the layers are bonded through waterproof asphalt, the laying height of the crushed stone layer 4 is the same as that of the second-layer step 3, the middle part of the surface of the crushed stone layer 4 is downwards sunken and is overlapped with a water collecting surface 31 of the second-layer step 3, and the crushed stone layer 4 can play a role in stabilizing and supporting and has the characteristics of high supporting strength and small compression sedimentation deformation; lay inverted filter 5 at rubble layer 4 upper surface afterwards, inverted filter 5 can select the geotechnological cloth to make, and geotechnological cloth has good prevention of seepage nature, can reduce the rainwater and to the infiltration in rubble layer 4, reduces the interior bottom ponding of new road bed 2, prolongs new road bed 2's life.
The bed course 6 sets up to concrete layer, and surface course 7 sets up to sand layer, and bed course 6 and surface course 7 have further strengthened new road bed 2's whole support performance, can effectively improve new road bed 2 because of the compressive deformation and the deformation of subsiding that the pressurized formed, and the upper surface height of bed course 6 is the same with third layer step 3's height, and the upper surface middle part undercut of bed course 6, coincides with third layer step 3's water-collecting surface 31.
Referring to fig. 2 and 3, two bolt seats 34 symmetrical about the drainage groove 33 are uniformly arranged in each step 3 of the old roadbed 1, the bolt seats 34 are conical, the thicker end of each bolt seat 34 is arranged in the step 3, the thinner end of each bolt seat is protruded out of the water collecting surface 31 of the step 3, and the axis of each bolt seat 34 is vertically arranged; be provided with through-hole 21 on the position of new road bed 2 for bolt seat 34, the vertical setting of through-hole 21, and inside is provided with threaded rod 22, threaded rod 22 one end threaded connection is on bolt seat 34, the other end cuts to the position with new road bed 2 upper surface parallel and level according to the length of through-hole 21, later to the filling layer 23 of intussuseption pitch mastic material in through-hole 21, the joint strength between reinforcing threaded rod 22 and the new road bed 2, threaded rod 22 connects in bolt seat 34, have the joint strength of strengthening new road bed 2 and old road bed 1 in horizontal.
A draft tube 24 is arranged in the new roadbed 2, one end of the draft tube 24 is attached to the edge of the drainage groove 33 on the vertical surface 32, and the other end of the draft tube 24 penetrates out of the new roadbed 2 and is connected to a drainage system; when each layer of structure of the new roadbed 2 is laid, the guide pipe 24 is adhered to the vertical surface 32 in advance, the guide pipe 24 is inclined downwards, accumulated water can be discharged quickly after flowing into the guide pipe 24, then each layer is filled, and the guide pipe 24 is coated in the new roadbed 2; and finally, filling a waterproof filling layer 8 in a gap between the new roadbed 2 and the uppermost layer of the old roadbed 1, so that the upper surfaces of the old roadbed 1 and the new roadbed 2 are smooth, and the waterproof performance and the connection strength of the joint between the old roadbed 1 and the new roadbed 2 are enhanced.
The implementation principle of the transverse new and old roadbed connecting structure with the waterproof function is as follows: rainwater or accumulated water on the road flows to the joints between the new and old roadbeds 1, and when the rainwater or the accumulated water leaks into the joints of the joints, the rainwater or the accumulated water is blocked outside the joints by the waterproof filling layers 8 filled in the joints of the joints; if rainwater leaks into the connecting part between the old roadbed 1 and the new roadbed 2, the rainwater can be gathered to the middle position of the step 3 by the water collecting surface obliquely arranged on the step 3, can be discharged into the guide pipe 24 through the drainage groove 33, and then accumulated water is discharged into a drainage system through the guide pipe 24; the surface of step 3 is fixed with waterproof layer 35 for separate the ponding on step 3 and the water-collecting surface 31, reduce ponding infiltration to in the step 3.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a horizontal new and old road bed connection structure with waterproof function which characterized in that: the novel roadbed comprises an old roadbed (1) and a new roadbed (2) fixedly arranged on the old roadbed (1), wherein a plurality of steps (3) are arranged at the splicing position of the old roadbed (1) and the new roadbed (2), each step (3) comprises a water collecting surface (31) and a vertical surface (32), the middle part of each water collecting surface (31) is sunken downwards, and a drainage groove (33) is formed in each step;
step (3) internal fixation on old road bed (1) is provided with a plurality of bolt seats (34), the vertical setting of bolt seat (34), the opening protrusion water-collecting surface (31) surface setting of bolt seat (34), be provided with a plurality of through-holes (21) that correspond with bolt seat (34) position on new road bed (2), wear to be equipped with a plurality of threaded rods (22) in through-hole (21), threaded rod (22) are used for with bolt seat (34) cooperation, fixed relative position between old road bed (1) and new road bed (2).
2. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: a gap between the threaded rod (22) and the through hole (21) is filled with a filling layer (23), and the filling layer (23) is set to be an asphalt mastic material layer.
3. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: the bolt seat (34) is of a conical structure, the thick end of the bolt seat (34) is embedded in the step (3), and the thin end of the bolt seat protrudes out of the surface of the water collecting surface (31).
4. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: waterproof layers (35) are arranged on the surfaces of the water collecting surface (31) and the vertical surface (32) of the step (3).
5. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: new road bed (2) sets gradually gravel layer (4), inverted filter (5), bed course (6) and surface course (7) from bottom to top, be provided with a plurality of honeycomb duct (24) in new road bed (2), honeycomb duct (24) one end is connected at the opening part of drainage groove (33), and the other end is connected to drainage pipe.
6. The lateral old-new roadbed connection structure with the waterproof function according to claim 5, wherein: the number of the draft tubes (24) is the same as that of the steps (3).
7. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: be provided with multiunit reinforcing bar (11) in old road bed (1), reinforcing bar (11) perpendicular to vertical face (32) set up, reinforcing bar (11) one end is inserted and is established in old road bed (1), and the other end is inserted and is established in new road bed (2).
8. The lateral old-new roadbed connection structure with the waterproof function according to claim 1, wherein: and a waterproof filling layer (8) is poured at the joint of the old roadbed (1) and the new roadbed (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022529001.9U CN213740385U (en) | 2020-11-04 | 2020-11-04 | Horizontal new and old road bed connection structure with waterproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022529001.9U CN213740385U (en) | 2020-11-04 | 2020-11-04 | Horizontal new and old road bed connection structure with waterproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213740385U true CN213740385U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022529001.9U Active CN213740385U (en) | 2020-11-04 | 2020-11-04 | Horizontal new and old road bed connection structure with waterproof function |
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| Country | Link |
|---|---|
| CN (1) | CN213740385U (en) |
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- 2020-11-04 CN CN202022529001.9U patent/CN213740385U/en active Active
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