New and old roadbed splicing structure
By setting shoulder guards at the splicing of new and old roadbeds and making new roadbeds, combined with gravel blind ditches and drainage pipe systems, the problem of uneven settlement of new and old roadbeds is solved, and the stability of roadbeds after road widening is achieved.
Patent Information
- Application Number
- CN202422539871.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In road construction, how to reduce uneven settlement when splicing new and old roadbeds, especially when the width is less than 1.75m, construction is inconvenient and stability is poor.
Shoulder guards are used as new roadbeds, and structures such as gravel blind grooves, drainage pipes and water collection pipes are set up between the shoulder guards and the original roadbed to form an effective drainage system to reduce the erosion and settlement of the roadbed by water.
By setting up shoulder pads and drainage systems, the stability between the new and old roadbeds is improved, uneven settlement is reduced, and the overall stability of the roadbed is enhanced.
Smart Images
Figure CN223292886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a new and old roadbed splicing structure, belonging to the technical field of road construction. Background Art
[0002] During road construction, it is sometimes necessary to widen the original road, and the widening width is less than 1.75m. This requires splicing the new roadbed with the original roadbed. How to reduce the uneven settlement between the new roadbed and the original roadbed after splicing is a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a new and old roadbed splicing structure.
[0004] The utility model is achieved through the following technical solutions:
[0005] A new and old roadbed splicing structure includes an original roadbed and a shoulder guard, wherein the shoulder guard is arranged longitudinally along the original roadbed, and a gravel blind ditch is provided between the shoulder guard and the original roadbed. A pavement layer is paved on the original roadbed, the gravel blind ditch and the shoulder guard.
[0006] The width of the gravel blind ditch is 10 cm.
[0007] The cross-section of the shoulder guard is L-shaped.
[0008] A plurality of drainage pipes A are buried at equal intervals on the top of the shoulder guard. The drainage pipes A are arranged transversely along the shoulder guard and are located on the upper side of the pavement layer.
[0009] The spacing between the plurality of drainage pipes A in the longitudinal direction of the shoulder guard is 5m.
[0010] A drainage pipe B is buried at the bottom of the shoulder guard just below each drainage pipe A. The drainage pipe B is arranged transversely along the shoulder guard and penetrates the shoulder guard, and one end of the drainage pipe B is connected to the gravel blind ditch.
[0011] It also includes roadbed slope, water collection pipe and drainage ditch. The drainage ditch is arranged along the longitudinal direction of the shoulder guard and is located on the side of the shoulder guard away from the original roadbed. The roadbed slope is located between the drainage ditch and the shoulder guard. One end of the water collection pipe is connected to the end of the drainage pipe A away from the pavement layer. The middle part is laid along the outer surface of the shoulder guard and the roadbed slope, and is connected to the end of the drainage pipe B away from the gravel blind ditch. The other end extends to the drainage ditch.
[0012] The beneficial effect of the utility model is that: since the road widening width is small, less than 1.75m, the construction is inconvenient, so the shoulder guard is used as the new roadbed, the shoulder guard has good stability, and helps to reduce the uneven settlement between the new and old roadbeds. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the present utility model.
[0014] In the figure: 1-original roadbed, 2-pavement layer, 3-shoulder guard, 30-inner plane, 4-drainage pipe A, 5-drainage ditch, 6-roadbed slope, 7-drainage pipe B, 8-gravel blind ditch, 9-collection pipe. DETAILED DESCRIPTION
[0015] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.
[0016] like Figure 1 As shown, the present invention describes a new and old roadbed splicing structure comprising an existing roadbed 1 and a shoulder guard 3. The shoulder guard 3 is arranged longitudinally along the existing roadbed 1, with a gravel blind ditch 8 provided between the shoulder guard 3 and the existing roadbed 1. A pavement layer 2 is laid over the existing roadbed 1, gravel blind ditch 8, and shoulder guard 3. During use, due to the limited width of the road being widened (less than 1.75m), construction is inconvenient. Therefore, the shoulder guard 3 doubles as the new roadbed. The shoulder guard 3's excellent stability helps reduce uneven settlement between the old and new roadbeds.
[0017] The width of the gravel blind ditch 8 is 10 cm. The gravel blind ditch 8 is provided to facilitate the subsequent drainage of water in the roadbed through the drainage pipe B7.
[0018] The cross-section of the shoulder guard 3 is L-shaped. When in use, the elevation of the inner plane 30 of the shoulder guard 3 is adapted to the elevation of the top surface of the original roadbed 1.
[0019] A plurality of drainage pipes A4 are buried at equal intervals on the top of the shoulder guard 3. The drainage pipes A4 are arranged transversely along the shoulder guard 3 and located on the upper side of the pavement layer 2. The accumulated water on the pavement layer 2 is drained away through the drainage pipes A4.
[0020] The distance between the plurality of drainage pipes A4 in the longitudinal direction of the shoulder guard 3 is 5 m.
[0021] A drainage pipe B7 is buried at the bottom of the shoulder guard 3, just below each drainage pipe A4. The drainage pipe B7 is arranged transversely along the shoulder guard 3 and passes through the shoulder guard 3. One end of the drainage pipe B7 is connected to the gravel blind ditch 8. The water in the roadbed is drained through the drainage pipe B7.
[0022] The system also includes a roadbed slope 6, a water collection pipe 9, and a drainage ditch 5. The drainage ditch 5 is arranged longitudinally along the shoulder guard 3 and located on the side of the shoulder guard 3 away from the original roadbed 1. The roadbed slope 6 is located between the drainage ditch 5 and the shoulder guard 3. One end of the water collection pipe 9 is connected to the end of drainage pipe A4 away from the pavement layer 2. The middle portion is laid along the outer surface of the shoulder guard 3 and the roadbed slope 6, and is connected to the end of drainage pipe B7 away from the gravel blind ditch 8. The other end extends into the drainage ditch 5. The water collection pipe 9 guides the water discharged from drainage pipes A4 and B7 into the drainage ditch 5, preventing the water discharged from drainage pipes A4 or B7 from scouring the roadbed slope 6 and helping to maintain the structural stability of the roadbed slope 6.
Claims
1. A new and old roadbed splicing structure, characterized by: The invention comprises an original roadbed (1) and a shoulder guard (3), wherein the shoulder guard (3) is arranged in the longitudinal direction of the original roadbed (1), and a gravel blind ditch (8) is provided between the shoulder guard (3) and the original roadbed (1); and a pavement layer (2) is laid on the original roadbed (1), the gravel blind ditch (8) and the shoulder guard (3).
2. The new and old roadbed splicing structure according to claim 1, characterized in that: The width of the gravel blind ditch (8) is 10 cm.
3. The new and old roadbed splicing structure according to claim 1, characterized in that: The cross-section of the shoulder guard (3) is L-shaped.
4. The new and old roadbed splicing structure according to claim 1, characterized in that: A plurality of drainage pipes A (4) are buried at equal intervals on the top of the shoulder guard (3). The drainage pipes A (4) are arranged in the transverse direction of the shoulder guard (3) and are located on the upper side of the pavement layer (2).
5. The new and old roadbed splicing structure according to claim 4, characterized in that: The distance between the plurality of drainage pipes A (4) in the longitudinal direction of the shoulder guard (3) is 5m.
6. The new and old roadbed splicing structure according to claim 4, characterized in that: A drainage pipe B (7) is buried at the bottom of the shoulder guard (3) just below each drainage pipe A (4). The drainage pipe B (7) is arranged transversely along the shoulder guard (3) and penetrates the shoulder guard (3), and one end of the drainage pipe B (7) is connected to the gravel blind ditch (8).
7. The new and old roadbed splicing structure according to claim 6, characterized in that: The invention also includes a roadbed slope (6), a water collecting pipe (9) and a drainage ditch (5). The drainage ditch (5) is arranged along the longitudinal direction of the shoulder guard (3) and is located on the side of the shoulder guard (3) away from the original roadbed (1). The roadbed slope (6) is located between the drainage ditch (5) and the shoulder guard (3). One end of the water collecting pipe (9) is connected to the end of the drainage pipe A (4) away from the road surface layer (2). The middle part is laid along the outer surface of the shoulder guard (3) and the roadbed slope (6), and is connected to the end of the drainage pipe B (7) away from the gravel blind ditch (8). The other end extends into the drainage ditch (5).