A water-crossing road structure suitable for passing under a high-speed railway in a shallow area

Abstract

This invention relates to the field of road construction technology and discloses a water-crossing road structure suitable for underpassing high-speed railways in shallow water areas. The structure includes: an upper structure of a vertical U-shaped channel, a middle structure of a frame with infill walls for support and replacement, and a lower structure of a pile-raft foundation. The upper structure forms an integrated, coordinated structure with the middle and lower structures. This invention improves the road's wave resistance and lateral thrust resistance, enables road passage and prevents falls, and ensures natural seawater flow. Simultaneously, it reduces the structural weight, effectively controlling the impact of ground settlement caused by the weight on the deformation of the crossing railway in soft soil areas. The lower structure uses a pile-raft foundation, reducing the sea area used and minimizing post-construction settlement. This application solves the technical problem of difficulty in controlling railway deformation due to structural weight and roadbed settlement when traditional road construction intersects with high-speed railways, and has significant practical value and promising prospects for similar projects.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, specifically to a water-crossing road structure suitable for passing under a high-speed railway in shallow water areas. Background Technology

[0002] Some high-speed rail lines need to cross coastal shallows, creating a special engineering scenario of "underpasses for high-speed railway bridges". For the unique scenario of a high-speed railway bridge passing under a shallow riverbed, traditional road structures suffer from significant technical limitations. Therefore, it is necessary to overcome traditional bottlenecks and develop more adaptable road design solutions to resolve the core conflict between regional development and railway construction. Summary of the Invention

[0003] This application provides a water-crossing road structure suitable for passing under high-speed railways in shallow water areas, in order to solve the problems of large settlement, low load-bearing capacity, and inability to guarantee seawater flow of traditional road structures.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is a water-crossing road structure suitable for passing under a high-speed railway in a shallow area, comprising: an upper structure, a middle structure, and a lower structure; The upper structure is a vertical U-shaped groove structure; The central structure is a frame structure with infill walls for support and replacement. The substructure is a pile-based raft foundation; The upper and lower structures form a cohesive whole through the middle structure.

[0005] The preferred technical solution to the above scheme is that the upper structure includes: a bottom plate, side walls, and longitudinal frame beams; the bottom plate, the side walls set on both sides of the bottom plate, and the longitudinal frame beams integrated with the side walls and the bottom plate together form the vertical U-shaped groove structure, and the longitudinal frame beams are located at the bottom of the upper structure. The substructure includes: a raft slab arranged longitudinally along the road and a bored pile foundation located below the raft slab.

[0006] An improved technical solution to the above preferred solution is that the lower structure further includes a steel sleeve; the steel sleeve is provided at the pile head of the bored pile foundation of the lower structure.

[0007] Steel sleeves are installed at the pile head of the bored cast-in-place pile foundation to ensure the quality of pile formation and strengthen the pile head, ensuring that the load of the superstructure can be accurately transferred to the foundation components, optimizing the structural stress, and improving the stability and reliability of the entire structural system.

[0008] A further improved technical solution is: a wave-proof eave is provided on the top of the side wall of the upper structure.

[0009] The side walls of the superstructure serve as road crash barriers and fall protection railings, and also act as wave barriers. After the waves impact, the main body of water is reflected back to the sea through the eaves, with only a small amount of spray passing over the side walls.

[0010] A further improved technical solution is that drainage pipes are reserved at certain intervals on the side walls of the upper structure.

[0011] The pre-installed drainage pipes on the side walls can quickly collect and drain accumulated water, effectively ensuring road traffic performance, maintaining the safety of the structure itself, and extending the overall service life of the structure.

[0012] A further preferred technical solution to the above scheme is that the central structure is arranged longitudinally along the road, and each frame includes multiple frame columns arranged transversely along the road, with infill walls set between two adjacent frame columns arranged transversely along the road; the frame columns are fixed to the longitudinal frame beams of the upper structure, and the infill walls are fixed to the bottom plate of the upper structure.

[0013] The middle structure, serving as the connecting and supporting layer between the upper and lower structures, adopts a lightweight structure with frame columns and infill walls. The infill walls, placed only between the frame columns arranged transversely to the road, can effectively resist the thrust of sea waves, and the cavities formed between the frames can create water passages, ensuring the natural hydrodynamic circulation of the sea area.

[0014] A further preferred technical solution is that, in the cross-section of the water-crossing road structure, the frame columns of the middle structure, the longitudinal frame beams of the upper structure, and the bored pile foundations of the lower structure are all arranged correspondingly, with the geometric center lines of the frame columns and the bored pile foundations coinciding, and the center lines of the frame columns and the bored pile foundations being perpendicular to the center line of the longitudinal frame beams.

[0015] A further preferred technical solution is that, in the longitudinal section of the water-crossing road structure, the frame columns of the middle structure and the bored pile foundations of the lower structure are arranged at the same intervals, and the frame columns, the infill walls, and the raft slab of the lower structure arranged along the longitudinal length of the road are connected to form an integral structure.

[0016] A further improved technical solution is that the central structure is also provided with infill walls along the longitudinal direction of the road, and the infill walls provided along the longitudinal direction of the road are spaced apart.

[0017] By setting infill walls at intervals along the longitudinal direction of the road, the overall structure of the water-passing road provided by this invention can be made more stable and reliable while ensuring permeability.

[0018] A further improved technical solution is that the drain pipe installed on the side wall of the upper structure is equipped with a filter screen structure; the bottom plate of the upper structure is equipped with a road leveling layer and a road surface layer, and the road surface layer is equipped with a cross slope.

[0019] The filter structure prevents large-diameter foreign objects from entering the drain pipe and causing blockage. The road surface is equipped with a cross slope (which can be a herringbone slope or a one-way slope) to direct the water collected on the road to the roadside ditch. The water in the ditch is discharged outward through the drain pipes pre-embedded in the side wall.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a water-crossing road structure suitable for underpassing high-speed railways in shallow water areas. It employs a vertical U-shaped trough superstructure, a mid-section structure combining a frame and infill wall, and a substructure with a pile-raft foundation. The superstructure forms an integrated, synergistic structure with the mid-section and substructure. The superstructure's U-shaped trough and mid-section frame-infill wall support structure improve the road's wave resistance and lateral thrust resistance, ensuring road passage and preventing falls, while guaranteeing natural seawater flow. Simultaneously, it reduces structural weight, effectively controlling the impact of ground settlement caused by weight on railway deformation in soft soil areas. The substructure uses a pile-raft foundation, reducing the sea area used and minimizing post-construction settlement. High-speed railway operation has high requirements for structural deformation control. This application solves the technical problem of difficulty in controlling railway deformation due to structural weight and roadbed settlement when traditional road construction intersects with high-speed railways, demonstrating significant practical value and promising prospects for similar projects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0023] Figure 2 This is a cross-sectional schematic diagram of an embodiment of this application.

[0024] Figure 3 This is a longitudinal section schematic diagram of an embodiment of this application.

[0025] In the attached diagram, the components represented by each number are as follows: 1. Superstructure; 2. Middle structure; 3. Substructure; 4. Side walls; 5. Base slab; 6. Longitudinal frame beams; 7. Frame columns; 8. Infill walls; 9. Raft foundation; 10. Drilled pile foundation; 11. Steel sleeve; 12. Drainage pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown in the figure, the water-crossing road structure provided in this embodiment is suitable for underpassing high-speed railways in shallow water areas. It can solve the problem of insufficient technical adaptability of traditional road structures in the special scenario of underpassing high-speed railway bridges in shallow water areas.

[0029] See Figures 1 to 3 As shown in the embodiment of this application, a water-crossing road structure suitable for passing under a high-speed railway in a shallow area is provided, including: an upper structure 1, which is a vertical U-shaped channel structure; a middle structure 2, which is a frame plus infill wall support structure; and a lower structure 3, which is a pile foundation raft foundation; the upper structure 1 and the lower structure 3 form an integrated cooperative structure through the middle structure 2.

[0030] For the superstructure 1, in this embodiment, the preferred superstructure 1 includes: side walls 4, a base plate 5, and longitudinal frame beams 6. The base plate 5, together with the side walls 4 located on both sides of the base plate 5 and the longitudinal frame beams 6 integrated with the side walls 4 and the base plate 5, forms an upright U-shaped channel structure, with the longitudinal frame beams located at the bottom of the superstructure 1.

[0031] refer to Figures 1 to 3 As shown, the side wall 4 of the superstructure 1 serves as a crash barrier and a fall arrestor for roads exposed to air, and also functions as a wave shield. Preferably, a wave-shielding eave is installed at the top of the side wall 4. When waves hit the side wall 4 of the superstructure, the water is reflected back to the sea by the wave-shielding eave, with only a small amount of spray passing over the side wall 4. During normal use, even if the road is attacked by wind and waves, it can still maintain normal traffic and use functions without being affected.

[0032] To prevent water from accumulating in the vertical U-shaped channel structure of the superstructure 1 and failing to drain quickly, preferably, drainage pipes 12 are reserved at certain intervals on the side wall 4 of the superstructure 1 to quickly collect and drain water from the bottom plate 5 of the superstructure 1, effectively ensuring road traffic performance, maintaining the safety of the structure itself, and extending the overall service life of the structure.

[0033] To prevent foreign objects from clogging the drain pipe 12, a filter screen is installed at the inlet of the drain pipe 12. To facilitate the rapid drainage of accumulated water, a road leveling layer and a road surface layer are installed on the base plate 5. The road surface layer is provided with a cross slope, which can be a herringbone slope or a one-way slope, etc. The purpose is to guide the water collected on the road surface to the roadside ditch; the accumulated water in the ditch is discharged outward through the drain pipe pre-embedded in the side wall.

[0034] For the central structure 2, preferably, the central structure 2 is arranged longitudinally along the road, and each truss includes: a plurality of frame columns 7 arranged transversely along the road, and an infill wall 8 disposed between two adjacent frame columns 7 arranged transversely along the road. The frame columns 7 are fixedly connected to the longitudinal frame beams 6 of the superstructure 1, and the infill wall 8 is fixedly connected to the base plate 5 of the superstructure 1.

[0035] Regarding the relative positional relationship between the transverse frame column 7, the longitudinal frame beam 6, and the bored pile foundation 10, the preferred arrangement is as follows: Figure 2 As shown in the cross-section of the water-crossing road structure suitable for underpassing a high-speed railway in a shallow area provided in this embodiment, the frame columns 7 of the middle structure 2 are correspondingly arranged with the longitudinal frame beams 6 of the upper structure 1 and the bored pile foundations 10 of the lower structure 3. The geometric center lines of the frame columns 7 and the bored pile foundations 10 coincide, and the center lines of the frame columns 7 and the bored pile foundations 10 are perpendicular to the center line of the longitudinal frame beams 6; as shown in the figure. Figure 3 As shown in the longitudinal section of the water-crossing road structure suitable for passing under a high-speed railway in a shallow area provided in this embodiment, the frame columns 7 of the middle structure 2 and the bored pile foundations 10 of the lower structure 3 are arranged at the same intervals, and are connected by infill walls 8 between the two transverse frame columns 7. The entire middle structure 2 is connected to the raft slab 9 arranged along the longitudinal length of the road to form a whole. The force transmission path is reasonable and the structure is simple and reliable.

[0036] The infill walls 8 arranged laterally along the road in the central structure 2 provide a channel for tidal waves to pass through in the shallow water area, while improving the road structure's resistance to lateral thrust deformation under wave action. Preferably, the central structure 2 also has infill walls 8 arranged longitudinally along the road, and the infill walls 8 arranged longitudinally along the road are spaced apart. The spaced infill walls 8 along the longitudinal direction of the road can make the overall water passage road structure provided by the present invention more stable and reliable while ensuring permeability.

[0037] For the substructure 3, preferably, the substructure 3 used in this embodiment includes: a raft slab 9 arranged longitudinally along the road, and a bored pile foundation 10 set below the raft slab 9.

[0038] In practical use, the superstructure 1 serves as the first line of defense against the impact of sea waves. The load is transferred to the middle structure 2 through the longitudinal frame beams 6 of the superstructure 1. The frame columns 7 and infill walls 8 of the middle structure 2 serve as the second line of defense against the impact of sea waves. Finally, the load is transferred to the raft slab 9 of the substructure 3, which evenly distributes the load to the bored pile foundation 10, thereby transferring it to the deep stable soil and significantly reducing the overall settlement of the road.

[0039] For the substructure 3, a further preferred embodiment is that the raft foundation 9 of the substructure 3 is arranged longitudinally along the road, and a bored pile foundation 10 is set under the raft foundation 9 as the main load-bearing component. To ensure the pile formation quality of the bored pile foundation 10 and strengthen the pile head structure, a steel sleeve 11 is installed at the pile head. The steel sleeve 11 and the pile head concrete work together to bear the load, effectively improving the pile head's crack resistance, impact resistance, and overall load-bearing reliability. At the same time, the planar arrangement of the bored pile foundation 10 corresponds one-to-one with the arrangement of the frame columns 7 of the middle structure 2, ensuring that the load of the superstructure can be accurately transferred to the foundation components, optimizing the structural stress, and improving the stability and reliability of the entire structural system.

[0040] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, characterized in that, include: Upper structure (1), middle structure (2), lower structure (3); The upper structure (1) is a vertical U-shaped groove structure; The central structure (2) is a frame structure with infill walls for support and replacement. The lower structure (3) is a pile foundation raft foundation; The upper structure (1) and the lower structure (3) form a cohesive structure through the middle structure (2).

2. The water-crossing road structure suitable for passing under a high-speed railway in a shallow area as described in claim 1, characterized in that, The upper structure (1) includes: a base plate (5), side walls (4), and longitudinal frame beams (6); the base plate (5), the side walls (4) set on both sides of the base plate (5), and the longitudinal frame beams (6) integrated with the side walls (4) and the base plate (5) together form the vertical U-shaped groove structure, and the longitudinal frame beams (6) are located at the bottom of the upper structure (1); The substructure (3) includes: a raft slab (9) arranged longitudinally along the road, and a bored pile foundation (10) located below the raft slab (9).

3. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 2, is characterized in that... The lower structure (3) further includes: a steel sleeve (11); the steel sleeve (11) is provided at the pile head of the bored pile foundation (10) of the lower structure (3).

4. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 3, characterized in that: The top of the side wall (4) of the upper structure (1) is provided with a wave-proof eave.

5. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 4, is characterized in that... Drainage pipes (12) are reserved at certain intervals on the side wall (4) of the upper structure (1).

6. The water-crossing road structure suitable for passing under a high-speed railway in a shallow area as described in any one of claims 2 to 5, characterized in that, The middle structure (2) is arranged longitudinally along the road, and each frame includes multiple frame columns (7) arranged laterally along the road, and infill walls (8) are set between two adjacent frame columns (7) arranged laterally along the road; the frame columns (7) are fixed to the longitudinal frame beams (6) of the upper structure (1), and the infill walls (8) are fixed to the bottom plate (5) of the upper structure (1).

7. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 6, is characterized in that... On the cross section of the water-crossing road structure, the frame column (7) of the middle structure (2) and the longitudinal frame beam (6) of the upper structure (1) and the bored pile foundation (10) of the lower structure (3) are arranged correspondingly. The geometric center lines of the frame column (7) and the bored pile foundation (10) coincide, and the center lines of the frame column (7) and the bored pile foundation (10) are perpendicular to the center line of the longitudinal frame beam (6).

8. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 7, is characterized in that... On the longitudinal section of the water-crossing road structure, the frame columns (7) of the middle structure (2) and the bored pile foundations (10) of the lower structure (3) are arranged at the same intervals. The frame columns (7), the infill wall (8) and the raft slab (9) of the lower structure (3) arranged along the longitudinal length of the road are connected to form an integral structure.

9. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 8, is characterized in that... The central structure (2) is also provided with infill walls (8) along the longitudinal direction of the road, and the infill walls (8) provided along the longitudinal direction of the road are spaced apart.

10. A water-crossing road structure suitable for passing under a high-speed railway in a shallow area, as described in claim 5, is characterized in that... The drain pipe (12) on the side wall (4) of the upper structure (1) is provided with a filter structure; the bottom plate (5) of the upper structure (1) is provided with a road leveling layer and a road surface layer, and the road surface layer is provided with a cross slope.

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