Self-adaptive heightened prefabricated structure and mixed embankment body

Abstract

The utility model provides a self-adaptation heightened prefabricated structure and a mixed embankment body, the self-adaptation heightened prefabricated structure comprises a main body, the main body comprises a chamfered trapezoid block, a rectangular rib plate and a rectangular bottom plate, the rectangular rib plate is fixedly arranged at the top end of the chamfered trapezoid block, the rectangular bottom plate is fixed at the bottom of the chamfered trapezoid block, and toe-shaped structures are arranged on the two sides of the rectangular bottom plate. The slope ratio of the left side face and the right side face of the chamfered trapezoid block body is not larger than 1: 1, and the chamfered trapezoid block body is provided with a cavity penetrating through the front side and the rear side of the chamfered trapezoid block body. The slope ratio of the slope surfaces on the two sides of the chamfered trapezoid block is not larger than 1: 1, it is ensured that the resultant force of waves and water flow acting on the slope surfaces acts downwards, the effects of waves and water flow can be effectively resisted, and the overall stability of the component is improved. A slow flow siltation promotion area can be formed in the cavity in the component, and a good habitat can be provided for aquatic organisms. The ecological prefabricated part can be used as an upper structure of a mixed embankment, and can adapt to building of channel improvement buildings, breakwaters and the like at different water depths by adjusting the size of a block body and the size of a lower foundation bed.

Description

Technical Field

[0001] The utility model belongs to the technical field of seaport engineering and waterway regulation engineering, and specifically relates to an adaptive heightening prefabricated structure. Background Art

[0002] A mixed embankment is a type of embankment that combines a vertical embankment and a slope embankment. Usually, the lower part of the embankment adopts a slope structure in combination with the base bed and foundation treatment, and the upper part is equipped with vertical structures such as semicircular caissons, toothed components, stone masonry or concrete steep walls, combining the advantages of both vertical embankments and slope embankments.

[0003] The commonly used mixed embankment superstructures in the Yangtze River estuary, such as semicircular caissons, have the advantages of good wave resistance, small and uniform foundation reaction force, fewer processes and simple construction. The toothed components (CN203247541U) used in the 12.5-meter deep-water channel regulation project below Nanjing on the Yangtze River have the advantages of simple structure, good stability and fewer processes. However, the embankments of the above structures are impermeable and have not formed a slow-flow zone suitable for the survival of aquatic organisms. After the embankment construction is completed, the embankment top elevation is fixed, and the later components cannot be directly raised, which cannot meet the requirements of embankment construction projects with ecological requirements and staged regulation. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide an adaptive heightened prefabricated structure to overcome the above shortcomings and deficiencies existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-adaptive heightening prefabricated structure comprises a main body, wherein the left and right side surfaces of the main body are inclined and in an eight-shaped shape, and the slope ratio of the left and right side surfaces is not greater than 1:1. The main body is provided with a cavity penetrating the front and rear sides.

[0007] In one embodiment, the main body includes a chamfered trapezoidal block, a rectangular rib and a rectangular bottom plate, the rectangular rib is fixedly arranged at the top of the chamfered trapezoidal block, the rectangular bottom plate is fixed at the bottom of the chamfered trapezoidal block, the slope ratio of the left and right sides of the chamfered trapezoidal block is not greater than 1:1, and the cavity runs through the front and rear sides of the chamfered trapezoidal block.

[0008] In one of the embodiments, toe-shaped structures are provided on the left and right sides of the rectangular bottom plate.

[0009] In one embodiment, a plurality of cavities are respectively disposed on the outer surfaces of the chamfered trapezoidal block and the rectangular rib.

[0010] In one of the embodiments, a plurality of tongue and grooves are provided on the top of the rectangular rib.

[0011] In one embodiment, the plurality of tenon grooves are arranged in rows along the length direction of the rectangular rib plate and are spaced apart.

[0012] In one embodiment, the chamfered trapezoidal block, the rectangular rib plate and the rectangular bottom plate are integrally cast and formed.

[0013] In one embodiment, the cross-sectional area of the cavity is trapezoidal. There are holes at the bottom of the cavity.

[0014] The present utility model also provides a body of a composite dike, including a rubble mound foundation bed and the above-mentioned self-adaptive heightening precast structure, and the self-adaptive heightening precast structure is arranged on the rubble mound foundation bed.

[0015] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects: by setting the slope ratios of the slopes on both sides of the component to be not greater than 1:1, it is ensured that the acting directions of the resultant wave force and the resultant water flow force on the slope are downward, which can effectively resist the actions of waves and water flows and improve the overall stability of the component. The openings at the bottom and both sides of the component and the internal cavity can form a slow-flow sedimentation promotion area, which can provide a good habitat for aquatic organisms. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the precast component of the present utility model.

[0017] Figure 2 It is a front view of the precast component.

[0018] Figure 3 It is a side view of the precast component.

[0019] Figure 4 It is a top view of the precast component.

[0020] Figure 5 It is a layout diagram of the precast component in the dike.

[0021] Explanation of the Reference Numerals in the Drawings:

[0022] 1. Chamfered trapezoidal block body; 2. Rectangular rib plate; 3. Rectangular bottom plate; 4. Toe-shaped structure; 5. Hole; 6. Tenon groove; 7. Cavity; 8. Shoulder protection riprap; 9. Toe protection riprap; 10. Rubble mound foundation bed. Detailed Embodiments

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0024] Please refer to Figures 1-5, An adaptive heightening precast structure, comprising a main body. The left and right side surfaces of the main body are inclined planes and are in a flare shape, and the slope ratios of the slopes are both not greater than 1:1. The main body is provided with a cavity 7 penetrating through the front and back sides. A hole is provided at the bottom of the cavity. The function of the bottom hole is to reduce the uplift force formed by the action of waves and water flow, increase the stability of the embankment body, form a slow-flow sedimentation promotion area inside the cavity of the component, provide a good habitat for aquatic organisms, and a mortise groove 6 is also provided at the top of the main body.

[0025] By setting the slope ratios of the slopes on both sides of the component not greater than 1:1, ensuring that the acting directions of the resultant wave force and the resultant water flow force on the slopes are downward, the action of waves and water flow can be effectively resisted, and the overall stability of the component can be improved. The cavity and the hole inside the component can form a slow-flow sedimentation promotion area, which can provide a good habitat for aquatic organisms.

[0026] As Figure 2 shown, in an embodiment, the main body includes a chamfered trapezoidal block 1, connected to a rectangular rib plate 2 at the top and an open-hole rectangular bottom plate 3 at the bottom. The slope ratios of the slopes on both sides of the chamfered trapezoidal block 1 are not greater than 1:1, and a cavity 7 is provided inside. The cross-sectional area of the cavity 7 is trapezoidal. Setting it as trapezoidal can ensure the uniform thickness of the cavity wall and is convenient for precast construction. Multiple holes 5 can be provided between the chamfered trapezoidal block 1 and the rectangular rib plate 2. A mortise groove 6 is provided at the top of the rectangular rib plate 2. The multiple mortise grooves 6 are arranged in a row along the length direction of the rectangular rib plate and are spaced. By setting a mortise groove at the top of the rectangular rib plate, in the later stage, a cast-in-place concrete rib plate or a precast rib plate with a mortise can be used for heightening according to the engineering needs. The bottom shape of the rectangular rib plate 2 is adapted to the top shape of the chamfered trapezoidal block 1, that is, the shapes and areas are the same, making their connection seamless.

[0027] In an embodiment, toe-shaped structures 4 are provided on the left and right sides of the rectangular bottom plate 3. By adjusting the sizes of the toe-shaped structures on both sides, the requirements for the stability of the component and the bearing capacity of the foundation can be met. Multiple holes 5 are respectively provided on the outer surfaces of the chamfered trapezoidal block and the rectangular rib plate. According to the requirements of the regulation project, the sizes and quantities of the holes 5 are adjusted, and the water permeability of the embankment body of the precast component can be adjusted, effectively slowing down the turbulent flow structure near the dam body.

[0028] For example, an adaptive heightening precast structure, comprising a chamfered trapezoidal block 1, connected to a rectangular rib plate 2 at the top and an open-hole rectangular bottom plate 3 at the bottom. The chamfered trapezoidal block, the rectangular rib plate and the rectangular bottom plate are integrally cast and formed. Toe-shaped structures 4 can be provided on both sides of the rectangular bottom plate 3. The slope ratios of the slopes on both sides of the chamfered trapezoidal block 1 are not greater than 1:1, and a cavity 7 is provided inside. Multiple holes 5 can be provided between the chamfered trapezoidal block 1 and the rectangular rib plate 2. A mortise groove 6 is provided at the top of the rectangular rib plate 2. The height of the upper rectangular rib plate is adjusted according to the engineering needs. By adjusting the sizes and quantities of the openings on the embankment body of the block, the water permeability of the embankment body of the component is adjusted to achieve different wave dissipation and flow guiding effects.

[0029] The present utility model also provides a body of a composite dike. The self-adaptive heightening precast structure can be used as the upper structure of the composite dike, and by adjusting the block size and the size of the lower foundation bed, it can adapt to different water depths to construct waterway regulation buildings, breakwaters, etc. Compared with a rubble dike, it can effectively reduce the use of stones. Compared with a composite dike composed of semi-circular caissons and toothed members, an ecological slow flow area can be formed in the cavity at the bottom of this member, and it can be heightened later, which can meet the requirements of dike construction projects with ecological requirements and those that need to be regulated in stages. It is precast and installed once, which is conducive to rapid construction. It is a new type of block with excellent comprehensive performance in terms of safety, economy, and ecology. The body of the composite dike includes a self-adaptive heightening precast structure, shoulder protection stones 8, toe protection stones 9, and a rubble foundation bed 10, and can be used as dike structures such as waterway regulation buildings and breakwaters in water transportation and water conservancy projects.

[0030] The specific embodiments of the present utility model have been described above, but the present utility model is not limited thereto. As long as it does not depart from the gist of the present utility model, the present utility model can also have various changes.

Claims

1. An adaptive heightening prefabricated structure, characterized in that: The invention comprises a main body, the left and right side surfaces of the main body are inclined and in an eight-shaped shape, the slope ratio of the left and right side surfaces is not greater than 1:1, and the main body is provided with a cavity penetrating the front and rear sides, Among them, the main body includes a chamfered trapezoidal block, a rectangular rib and a rectangular bottom plate, the rectangular rib is fixedly arranged at the top of the chamfered trapezoidal block, the rectangular bottom plate is fixed at the bottom of the chamfered trapezoidal block, the slope ratio of the left and right sides of the chamfered trapezoidal block is not greater than 1:1, the cavity runs through the front and rear sides of the chamfered trapezoidal block, and the outer surfaces of the chamfered trapezoidal block and the rectangular rib are respectively provided with multiple holes.

2. The self-adaptive heightening prefabricated structure according to claim 1 is characterized in that: The left and right sides of the rectangular bottom plate are provided with toe-shaped structures.

3. The self-adaptive heightening prefabricated structure according to claim 1 is characterized in that: A plurality of tongue and grooves are arranged on the top of the rectangular rib plate.

4. The self-adaptive heightening prefabricated structure according to claim 3 is characterized in that: The plurality of tongues and grooves are arranged in rows and spaced apart along the length direction of the rectangular rib.

5. The self-adaptive heightening prefabricated structure according to claim 1 is characterized in that: The chamfered trapezoidal blocks, rectangular ribs and rectangular bottom plates are designed to be integrally cast and formed.

6. The self-adaptive heightening prefabricated structure according to claim 1, characterized in that: The cross-sectional area of ​​the cavity is trapezoidal, and a hole is provided at the bottom of the cavity.

7. A mixed embankment body, characterized in that: It comprises a riprap base bed and the self-adaptive heightening prefabricated structure according to any one of claims 1 to 6, wherein the self-adaptive heightening prefabricated structure is arranged on the riprap base bed.

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