A channel-bridge integrated channel farming bridge structure

Abstract

The utility model relates to a kind of channel and bridge integrated channel machine farming bridge structure, including the bottom plate being arranged in channel, trapezoidal slope wall being arranged in the both sides of bottom plate and bridge plate being arranged above the both sides trapezoidal slope wall, backfill layer is provided above bridge plate, bridge deck layer is provided above backfill layer.The channel and bridge integrated channel machine farming bridge structure provided by the utility model, pier and channel bottom plate are integrally poured, construction is completed once, simplify process, improve efficiency, guarantee channel anti-seepage quality.The structure can adapt to the trapezoidal section of different slope ratio, water flow is smooth, reduce scouring damage, at the same time, bridge deck height and the height of road surface of machine farming road change synchronously, without appearing high-low difference, by adjusting the thickness of upper fill, adapt to the elevation difference of road and channel top, structure is stable, strong durability.The problems, such as traditional channel machine farming bridge construction complexity, high labor cost, poor anti-seepage, bridge deck both ends turning space narrow, and rectangular cover bridge culvert connection is not smooth, water loss problem are solved.

Description

Technical Field

[0001] This utility model belongs to the field of canal mechanized farming bridge technology, and specifically relates to an integrated canal mechanized farming bridge structure. Background Technology

[0002] Traditional canal farm bridges have specific size requirements for their bridge abutments, and the width of the water conveyance canal cross-section varies greatly, making it difficult to standardize the size of the bridge abutments. The span of farm bridges is generally 5 to 10 meters, and the width is generally 4.5 meters, 6 meters, 7.5 meters, or 9 meters. Alternatively, canal cover plate farm bridges and culverts can be used, which have a rectangular cross-section and a bottom width of 1 to 4 meters.

[0003] The main drawbacks of traditional canal-based mechanized farming bridges are:

[0004] 1. Existing canal bridges for mechanized farming generally adopt a separate structure, including independent piers, abutments, the bridge deck, and the canal fill panel on the water-facing side. Construction requires three phases: first, the piers and abutments are constructed; then, the bridge deck is constructed; and finally, the water-facing fill and lining panel are constructed. This method is not only complex and time-consuming, but also suffers from limited construction space in small canals, high labor costs, and difficulty in ensuring seepage prevention quality. Furthermore, the turning space at both ends of existing canal bridges for mechanized farming is relatively narrow, making the railings susceptible to damage from collisions with agricultural transport vehicles.

[0005] 2. During bridge and bridge deck construction, once the bridge deck elevation is determined, the road surface of the farm road will change in elevation each year during cultivation, and a fixed bridge deck cannot adapt to these changes. Although rectangular slab bridge and culvert structures are easy to construct, they are difficult to connect with trapezoidal channel cross-sections, resulting in obstructed water flow, increased water loss, and reduced irrigation efficiency. Utility Model Content

[0006] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing an integrated canal-bridge structure for mechanized farming, thereby solving the problems existing in traditional mechanized farming bridges for canals.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A canal bridge integrating canal and mechanized farming bridge includes a bottom slab set in the canal, trapezoidal sloping walls set on both sides of the bottom slab, and a bridge slab set on the top of the trapezoidal sloping walls on both sides. A backfill soil layer is set on the top of the bridge slab, and a bridge deck layer is set on the top of the backfill soil layer.

[0009] To better realize this utility model, the above structure is further optimized. The base plate, trapezoidal sloping wall and bridge plate are all made of concrete, and the base plate and bridge plate are provided with supporting steel bars.

[0010] To better realize this utility model, the above structure is further optimized by providing a concrete pad layer under the base plate.

[0011] To better realize this utility model, the above structure is further optimized by providing a bridge plate support between the bridge plate and the trapezoidal sloping wall.

[0012] To better realize this utility model, the above structure is further optimized by providing a crushed stone cushion layer between the bridge deck layer and the backfill layer.

[0013] To better realize this utility model, the above structure is further optimized, and the bridge deck layer is made of concrete.

[0014] To better realize this utility model, the above structure is further optimized by providing road shoulders and guardrail piers on both sides of the bridge deck layer.

[0015] To better realize this utility model, the above structure is further optimized by making the width of the bridge deck layer smaller than the width of the bridge plate.

[0016] To better realize this utility model, further optimizations are made to the above structure. The second bridge deck of the canal mechanized farming bridge is an arch structure with a soil filling height of 1.5m or more.

[0017] To better realize this utility model, further optimizations are made to the above structure. The bridge slab of the canal mechanized farming bridge type is a slab structure with a soil filling height of less than 1.5m.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This utility model provides an integrated canal-bridge structure for mechanized farming, where the piers and canal base are cast as a single piece, completing construction in one go, simplifying procedures, improving efficiency, and ensuring seepage prevention quality. This structure can adapt to trapezoidal cross-sections with different slope ratios, ensuring smooth water flow and reducing erosion damage. Simultaneously, the bridge deck height changes synchronously with the road surface height, eliminating elevation differences. By adjusting the thickness of the upper fill, it adapts to the elevation differences between the road and the canal top, resulting in a stable and durable structure. It solves the problems of complex construction, high labor costs, poor seepage prevention, narrow turning spaces at both ends of the bridge deck making railings easily damaged by impacts, and the problems of poor connection and high water loss in rectangular culvert bridges. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of Embodiment 1 of the integrated canal bridge structure of this utility model;

[0022] Figure 2 yes Figure 1 Longitudinal cross-section of AA;

[0023] Figure 3 This is a cross-sectional view of Embodiment 2 of the integrated canal bridge structure of this utility model;

[0024] Figure 4 yes Figure 3 Longitudinal cross-section of BB.

[0025] In the picture:

[0026] 1-Bottom slab, 2-Trapezoidal sloping wall, 3-Bridge slab, 4-Backfill soil layer, 5-Bridge deck layer, 6-Concrete cushion layer, 7-Bridge slab support, 8-Gravel cushion layer, 9-Road shoulder, 10-Guardrail pier, 11-Upstream channel, 12-Downstream channel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1:

[0031] Please refer to Figure 1 and Figure 2 This application provides an integrated canal-bridge structure for mechanized farming, comprising a base plate 1 within the canal, trapezoidal sloping walls 2 on both sides of the base plate 1, and a bridge plate 3 above the trapezoidal sloping walls 2. The width between the bottoms of the trapezoidal sloping walls 2 (bridge opening width) is 1.8–2.4 m, and the slope ratio of the sidewalls of the trapezoidal sloping walls 2 is 1:0.2–1:0.6, which can better adapt to trapezoidal canal cross-sections with different slope ratios. Due to the diverse slope ratios of trapezoidal canals, this mechanized farming bridge structure can flexibly adjust the sidewall slope ratio according to the actual canal conditions, effectively reducing the large inflection-curve transition sections, making the water flow through the canal smoother when passing through the mechanized farming bridge, and reducing the problem of canal leakage caused by erosion damage at the joints of the transition sections due to the complex water flow conditions in the transition sections.

[0032] A backfill layer 4 is installed above the bridge deck 3. Because of the backfill layer 4, the bridge deck height changes synchronously with the road surface height of the farm road, preventing any height difference. The bridge deck 3 has an arch structure, primarily suitable for bridges with a backfill layer 4 thickness of 1.5m or greater, providing stronger support. A bridge deck layer 5 is installed above the backfill layer 4.

[0033] Compared to traditional canal bridges, this application has a simpler shape, which can greatly improve construction speed and save manpower and resources. The structure of the bridge can be divided into two parts: the base support part and the upper bridge plate part. The base support part is U-shaped with only eight sides in the cross section. The structure is simple, the formwork is convenient and quick to erect, the structure is stable, and it has good durability and universal applicability. The advantages of this bridge structure are even more apparent when faced with a large number of bridges and a variety of trapezoidal canal cross sections.

[0034] This application can also better adapt to situations where there is a significant difference between the road surface elevation and the canal top elevation. In deep excavated or embanked canals, if there is a large difference between the road elevation and the design elevation of the canal top, traditional farm bridges, when facing deep excavated canals, suffer from large spans due to the trapezoidal cross-section of the canal and the large elevation difference. This results in complex and uneconomical construction, and once the bridge deck elevation is determined, it cannot be adjusted. However, the farm bridge structure provided by this application can adjust the filling depth of the upper backfill layer 4 to adapt to embanked and excavated canals with different elevation differences. Furthermore, the span does not increase with the increase in the elevation difference of the deep excavated canal, further highlighting its advantages of simple structure and good load-bearing structure.

[0035] In this embodiment, the base slab 1, trapezoidal sloping wall 2, and bridge deck 3 are all made of concrete, and the base slab 1 and bridge deck 3 are internally reinforced with reinforcing steel bars to withstand greater pressure. The concrete used in the base slab 1 and trapezoidal sloping wall 2 is grade C25W6F50, which has good compressive strength, impermeability, and frost resistance. The bridge deck 3 is made of grade C30 concrete, which has even stronger compressive strength. A 100mm thick concrete pad 6, grade C20, is provided beneath the base slab 1 to provide a supporting foundation for the entire farm bridge structure.

[0036] A bridge deck support 7, 10mm thick, is installed between the bridge deck 3 and the trapezoidal sloping wall 2. A crushed stone cushion layer 8 is installed between the bridge deck layer 5 and the backfill layer 4. The bridge deck layer 5 is made of concrete. Shoulders 9 and guardrail piers 10 are installed on both sides of the bridge deck layer 5. The width of the bridge deck layer 5 is smaller than the width of the bridge deck 3, serving a safety protection function. The backfill layer 4 protrudes from the bridge deck layer 5 on both sides, and turf slope protection is installed on the protruding backfill layer 4.

[0037] Example 2:

[0038] Please refer to Figure 3 and Figure 4 The difference between Embodiment 2 of this application and Embodiment 1 is that the bridge plate 3 is a plate structure, which is mainly suitable for use in the construction of a mechanized farming bridge where the backfill soil layer 4 is less than 1.5m thick.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A canal-bridge integrated mechanized farming bridge structure, characterized in that: It includes a bottom plate (1) set in the channel, trapezoidal sloping walls (2) set on both sides of the bottom plate (1) and a bridge plate (3) set on the trapezoidal sloping walls (2) on both sides. A backfill soil layer (4) is set on the bridge plate (3) and a bridge deck layer (5) is set on the backfill soil layer (4).

2. The integrated canal bridge structure for mechanized farming as described in claim 1, characterized in that: The base plate (1), the trapezoidal sloping wall (2) and the bridge plate (3) are all made of concrete, and the base plate (1) and the bridge plate (3) are provided with supporting steel bars inside.

3. The integrated canal-bridge structure for mechanized farming as described in claim 2, characterized in that: A concrete pad (6) is provided below the base plate (1).

4. The integrated canal bridge structure for mechanized farming as described in claim 2, characterized in that: A bridge deck support (7) is provided between the bridge deck (3) and the trapezoidal sloping wall (2).

5. The integrated canal bridge structure for mechanized farming as described in claim 1, characterized in that: A crushed stone cushion layer (8) is provided between the bridge deck layer (5) and the backfill soil layer (4).

6. The integrated canal bridge structure for mechanized farming as described in claim 5, characterized in that: The bridge deck layer (5) is made of concrete.

7. The integrated canal bridge structure for mechanized farming as described in claim 6, characterized in that: The bridge deck layer (5) is provided with shoulders (9) and guardrail piers (10) on both sides.

8. The integrated canal bridge structure for mechanized farming as described in claim 7, characterized in that: The width of the bridge deck layer (5) is smaller than the width of the bridge plate (3).

9. A canal-bridge integrated mechanized farming bridge structure according to any one of claims 1-8, characterized in that: The bridge deck (3) is an arch structure with a fill height of 1.5m or more.

10. A canal-bridge integrated mechanized farming bridge structure according to any one of claims 1-8, characterized in that: The bridge deck (3) is a slab structure with a fill height of less than 1.5m.

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