Roadbed pile plate structure for underneath passing railway
By adopting a pile-plate structure during the road widening process near the river, using PHC and PRC pipe piles and I-beam supports to form a stable pile-plate assembly, the settlement and land acquisition problems caused by traditional roadbed widening were solved, and the effect of high stiffness and low settlement was achieved.
Patent Information
- Application Number
- CN202422730831.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-11
AI Technical Summary
During urban expansion, when roads near rivers are widened, the traditional roadbed widening method is prone to cause settlement, affecting the stability of the river and requiring the expropriation of a large amount of land.
The pile-plate structure is adopted, including PHC pipe piles, PRC pipe piles, clamped I-beam brackets and pile-plate bodies. A stable pile-plate assembly is formed by drilling connections. Combined with precast slabs and cast-in-place concrete slabs, the roadbed stiffness is improved and settlement is reduced.
It improves the roadbed stiffness, reduces post-construction settlement, saves land acquisition area, reduces the impact on the river channel, and improves the user experience.
Smart Images
Figure CN223386673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a roadbed pile plate structure for passing under a railway. Background Art
[0002] With the rapid development of social economy and urbanization, the high-speed railway network has been gradually improved and urban space has gradually expanded. However, the high-speed railways passing through the city have become a barrier to further urban expansion, and the number of intersections between roads and high-speed railways is also increasing.
[0003] China's road structures are complex, often with sections adjacent to rivers. With the passage of time, some existing roads require widening. When traditional roadbeds are widened, the sections adjacent to rivers are often treated the same way as the rest of the road. In these cases, due to the low soil strength in river areas, settlement is prone to occur, necessitating subsequent reinforcement of the river pavement. This significantly impacts the river and results in a poor user experience. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a roadbed pile-plate structure for passing under a railway.
[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a roadbed pile-plate structure for passing under a railway, comprising an old roadbed, high-speed railway piers are arranged on both sides of the upper surface of the old roadbed, a railway bridge beam is jointly installed on the two high-speed railway piers, a retaining wall is arranged on the side wall of the old roadbed, and a pile-plate assembly for widening is arranged on the old roadbed.
[0006] Furthermore, the pile-plate assembly includes a first PHC pipe pile, a second PHC pipe pile, a PRC pipe pile arranged on the second PHC pipe pile, a clamping I-beam bracket arranged at the upper end of the PRC pipe pile, and a pile-plate body installed on the clamping I-beam bracket.
[0007] By adopting the above technical solution, when the staff needs to widen the old road, the staff needs to drill holes on the old roadbed and connect the first PHC pipe pile to the old roadbed to keep the first PHC pipe pile stable. Subsequently, the staff needs to bury the second PHC pipe pile in the land near the river channel and connect the PRC pipe pile to the upper end of the second PHC pipe pile to keep the PRC pipe pile stable. Furthermore, the staff needs to connect the clamp I-beam bracket to the PRC pipe pile and install the two ends of the pile plate body on the PRC pipe pile and the retaining wall respectively to keep the pile plate body stable. Compared with the traditional roadbed widening method, this method has high roadbed rigidity and small post-construction settlement. At the same time, it eliminates the slope reduction, saves the land acquisition area, and effectively reduces the impact of widening on the river channel.
[0008] Furthermore, the clamp I-beam support includes a first connecting hoop arranged at the upper end of the PRC pipe pile, a second connecting hoop arranged at the upper end of the PRC pipe pile, and an I-beam piece installed together on the first connecting hoop and the second connecting hoop.
[0009] Furthermore, the pile plate body includes a prefabricated plate installed on the upper surface of the I-beam and the upper surface of the retaining wall, and a cast-in-situ concrete plate arranged on the prefabricated plate.
[0010] Furthermore, arc-shaped grooves are provided on both sides of the upper surface of the prefabricated plate.
[0011] By adopting this technical solution, when workers install the pile-slab body, they need to connect the ends of the multiple precast panels to the PRC piles and retaining walls respectively, so as to maintain the stability of the precast panels. After the precast panels are installed, workers need to pour concrete into the curved grooves to fill the curved grooves with concrete, and finally form a cast-in-place concrete slab.
[0012] Furthermore, transverse steel bars are provided on the inner wall of the arc-shaped groove.
[0013] By adopting the above technical solution, the structural strength of the cast-in-place concrete slab is improved, thereby improving the user experience of the staff.
[0014] Furthermore, the width of the prefabricated panel is 8.85 meters.
[0015] Furthermore, the width of the cast-in-place concrete slab is 0.8 meters.
[0016] In summary, the present invention has the following beneficial effects:
[0017] 1. In this application, when the staff needs to widen the old road, the staff needs to drill holes on the old roadbed and connect the first PHC pipe pile to the old roadbed to keep the first PHC pipe pile stable. Subsequently, the staff needs to bury the second PHC pipe pile in the land near the river channel, and connect the PRC pipe pile to the upper end of the second PHC pipe pile to keep the PRC pipe pile stable. Furthermore, the staff needs to connect the clamp I-beam bracket to the PRC pipe pile, and install the two ends of the pile plate body on the PRC pipe pile and the retaining wall respectively, to keep the pile plate body stable. Compared with the traditional roadbed widening method, this method has high roadbed rigidity and small post-construction settlement. At the same time, it eliminates the slope reduction, saves the land acquisition area, and effectively reduces the impact of widening on the river channel;
[0018] 2. In this application, when the staff installs the pile board body, the staff needs to connect the two ends of the multiple prefabricated panels to the PRC piles and the retaining wall respectively to keep the prefabricated panels stable. After the prefabricated panels are installed, the staff needs to pour concrete into the arc groove to fill the arc groove with concrete and finally form a cast-in-place concrete slab;
[0019] 3. In this application, such a setting improves the structural strength of the cast-in-place concrete slab, thereby improving the user experience of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;
[0021] Figure 2 This is a schematic diagram of a second PHC pile and its connection structure according to an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the pile-plate assembly and its connection structure according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the I-beam bracket and its connection structure according to an embodiment of the utility model;
[0024] Figure 5 It is a schematic diagram of the pile plate main body and its connection structure in an embodiment of the present utility model.
[0025] In the figure: 1. Old roadbed; 2. High-speed railway bridge pier; 21. Railway bridge beam; 3. Retaining wall; 4. Pile-slab assembly; 41. First PHC pipe pile; 42. Second PHC pipe pile; 43. PRC pipe pile; 5. I-beam bracket with hoop; 51. First connecting hoop; 52. Second connecting hoop; 53. I-beam; 6. Pile-slab body; 61. Precast slab; 62. Cast-in-place concrete slab; 7. Arc groove; 8. Transverse reinforcement. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0027] like Figure 1-5 As shown, the present invention discloses a pile-plate structure for a roadbed under a railway, comprising an old roadbed 1, high-speed railway piers 2, railway bridge beams 21, retaining walls 3, pile-plate assemblies 4, and transverse reinforcement 8. Multiple high-speed railway piers 2 are provided and sequentially distributed on both sides of the upper surface of the old roadbed 1. Railway bridge beams 21 are mounted on the multiple high-speed railway piers 2 to allow trains to pass through. Retaining walls 3 are provided on the sidewalls of the old roadbed 1 to reduce the probability of landslides.
[0028] The pile-plate assembly 4 is installed on the existing roadbed 1 for widening. It includes a first PHC pile 41, a second PHC pile 42, a PRC pile 43, a steel I-beam support 5, and a pile-plate body 6. The first PHC pile 41 is a hollow tubular structure installed on the upper surface of the existing roadbed 1. The second PHC pile 42 is a hollow tubular structure connected to the land near the river. The PRC pile 43 is a hollow tubular structure installed on the second PHC pile 42.
[0029] When the staff needs to widen the old road, the staff needs to drill holes on the old roadbed 1 and connect the first PHC pipe pile 41 to the old roadbed 1 to keep the first PHC pipe pile 41 stable. Subsequently, the staff needs to bury the second PHC pipe pile 42 in the land near the river channel and connect the PRC pipe pile 43 to the upper end of the second PHC pipe pile 42 to keep the PRC pipe pile 43 stable. Furthermore, the staff needs to connect the clamp I-beam support 5 to the PRC pipe pile 43 and install the two ends of the pile plate body 6 on the PRC pipe pile 43 and the retaining wall 3 respectively to keep the pile plate body 6 stable. Compared with the traditional roadbed widening method, this method has high roadbed rigidity and small post-construction settlement. At the same time, it eliminates the slope reduction, saves the land acquisition area, and effectively reduces the impact of widening on the river channel.
[0030] The I-beam support 5 is mounted on the upper end of the PRC pile 43 and includes a first connecting hoop 51, a second connecting hoop 52, and an I-beam 53. The first connecting hoop 51 is mounted on the upper end of the PRC pile 43, the second connecting hoop 52 is mounted on the upper end of the PRC pile 43, and the I-beam 53 is mounted on both the first connecting hoop 51 and the second connecting hoop 52.
[0031] The main pile plate 6 is mounted on the I-beam bracket 5 and consists of a precast plate 61 and a cast-in-place concrete slab 62. The precast plate 61 is a plate-like structure, mounted on the upper surface of the I-beam 53 and the retaining wall 3. The cast-in-place concrete slab 62 is set on the precast plate 61, and arcuate grooves 7 are formed on both sides of the upper surface of the precast plate 61.
[0032] When installing the pile plate body 6, the workers need to connect the ends of the multiple precast panels 61 to the PRC piles 43 and the retaining wall 3 to ensure the stability of the precast panels 61. After the precast panels 61 are installed, the workers need to pour concrete into the arcuate groove 7 to fill the arcuate groove 7 with concrete and finally form the cast-in-place concrete slab 62.
[0033] In order to improve the structural strength of the cast-in-place concrete slab 62 and thus enhance the user experience of the workers, transverse steel bars 8 are provided on the inner wall of the arc-shaped groove 7 .
[0034] In order to improve the user experience of the staff, the width of the prefabricated panel 61 is 8.85 meters, and the width of the cast-in-place concrete panel 62 is 0.8 meters.
[0035] The principle of use of a roadbed pile-plate structure for underpasses in this embodiment is as follows: when the staff needs to widen the old road, the staff needs to drill holes in the old roadbed 1 and connect the first PHC pipe pile 41 to the old roadbed 1, so that the first PHC pipe pile 41 can remain stable. Subsequently, the staff needs to bury the second PHC pipe pile 42 in the land near the river channel, and connect the PRC pipe pile 43 to the upper end of the second PHC pipe pile 42, so that the PRC pipe pile 43 can remain stable. Furthermore, the staff needs to connect the clamp I-beam support 5 to the PRC pipe pile 43, and install the two ends of the pile plate body 6 on the PRC pipe pile 43 and the retaining wall 3 respectively, so that the pile plate body 6 can remain stable. Compared with the traditional roadbed widening method, this method has high roadbed rigidity and small post-construction settlement. At the same time, it eliminates the slope reduction, saves the land acquisition area, and effectively reduces the impact of widening on the river channel.
[0036] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A roadbed pile-slab structure for a road under a railway, comprising an old roadbed (1), characterized by: High-speed railway piers (2) are provided on both sides of the upper surface of the old roadbed (1), a railway bridge beam (21) is installed on both high-speed railway piers (2), a retaining wall (3) is provided on the side wall of the old roadbed (1), and a pile plate assembly (4) for widening is provided on the old roadbed (1).
2. The pile-slab structure for a roadbed under a railway according to claim 1, characterized in that: The pile-plate assembly (4) comprises a first PHC pipe pile (41) arranged on the upper surface of an old roadbed (1), a second PHC pipe pile (42), a PRC pipe pile (43) arranged on the second PHC pipe pile (42), a clamping I-beam support (5) arranged on the upper end of the PRC pipe pile (43), and a pile-plate body (6) mounted on the clamping I-beam support (5).
3. The pile-slab structure for a roadbed under a railway according to claim 2, characterized in that: The hoop I-steel bracket (5) comprises a first connecting hoop (51) arranged at the upper end of a PRC pipe pile (43), a second connecting hoop (52) arranged at the upper end of the PRC pipe pile (43), and an I-steel piece (53) mounted on the first connecting hoop (51) and the second connecting hoop (52).
4. The pile-slab structure for a roadbed under a railway according to claim 3, characterized in that: The pile plate body (6) comprises a prefabricated plate (61) mounted on the upper surface of the I-steel member (53) and the upper surface of the retaining wall (3), and a cast-in-situ concrete plate (62) arranged on the prefabricated plate (61).
5. The pile-slab structure for a roadbed under a railway according to claim 4, characterized in that: Arc-shaped grooves (7) are provided on both sides of the upper surface of the prefabricated plate (61).
6. The pile-slab structure for a roadbed under a railway according to claim 5, characterized in that: A transverse steel bar (8) is provided on the inner wall of the arc-shaped groove (7).
7. The pile-slab structure for a roadbed under a railway according to claim 6, characterized in that: The width of the prefabricated panel (61) is 8.85 meters.
8. The pile-slab structure for a roadbed under a railway according to claim 7, characterized in that: The width of the cast-in-situ concrete slab (62) is 0.8 meters.