A scouring-resistant reinforcing structure for a dike toe

Abstract

The utility model discloses a kind of embankment foot scouring prevention reinforcing structures, including embankment foot ontology, the front surface bottom of embankment foot ontology is provided with reinforcing beam, the upper portion of the front surface of embankment foot ontology is sequentially provided with bottom layer protective layer, middle layer reinforcing layer and top layer buffer layer close to reinforcing beam.The utility model is by setting bottom layer protective layer, middle layer reinforcing layer and top layer buffer layer's multilayer structure of the front surface of embankment foot ontology, bottom layer gabion unit fills block stone and is fixed in reinforcing beam, disperses water flow impact force;Middle layer concrete block is connected by insert block, bolt and limiting structure, forms rigid whole;Top layer arc buffer plate is articulated through pivot, cooperate spring and flow guide groove, rotate compression spring absorption energy when being impacted;Three-layer structure cooperates to realize dynamic buffering, rigid support and flexible protection, solve the problem that existing single measure is insufficient and structure is poor in synergy in scouring prevention effect, effectively prevent embankment foot foundation hollowing, improve anti-scouring capacity and embankment stability.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering protection technology, specifically a dike toe erosion prevention and reinforcement structure. Background Technology

[0002] In water conservancy projects, the toe of a dike is a critical part that directly contacts the water flow and is subjected to long-term erosion. The scouring force of the water flow can easily lead to the erosion and hollowing out of the foundation soil at the toe, thereby affecting the overall stability of the dike and potentially causing serious accidents such as dike collapse. Currently, common measures for erosion protection and reinforcement of dike toes include the use of gabions, concrete blocks, and other toe protection structures.

[0003] Existing single-layer toe protection measures have limited effectiveness in preventing erosion under complex water flow conditions, and the synergistic effect between structures is insufficient, making it difficult to effectively protect the toe of the dike in the long term. Utility Model Content

[0004] The purpose of this utility model is to provide a scour prevention and reinforcement structure for the toe of a dike, which solves the problems of insufficient scour prevention effect and poor structural coordination of existing single measures, effectively prevents the foundation of the dike toe from being hollowed out, and improves the scour resistance and stability of the dike.

[0005] This utility model is implemented by the following technical solution: a dike toe anti-scour reinforcement structure, including a dike toe body, a reinforcement beam is provided at the bottom of the front surface of the dike toe body, and a bottom protective layer, a middle reinforcement layer and a top buffer layer are sequentially provided on the upper part of the front surface of the dike toe near the reinforcement beam.

[0006] The bottom protective layer includes multiple gabion units, which are arranged along the length of the embankment body. The bottom of each gabion unit is fixedly connected to the rear of the upper surface of the reinforcing beam, and adjacent gabion units are fixedly connected.

[0007] The middle reinforcement layer includes multiple concrete blocks, the rear surface of which is attached to the front surface of the bottom protective layer, and the bottom of which is attached to the upper surface of the reinforcement beam near the front of the gabion unit.

[0008] The top layer of buffer includes multiple buffer plates. One end of each buffer plate is hinged to one side of the front surface of the concrete block via a pivot. Multiple springs are fixedly connected to the rear surface of the buffer plate away from the pivot. The rear surfaces of the springs are fixedly connected to the other side of the front surface of the concrete block via connecting blocks.

[0009] As a further preferred embodiment of this technical solution: inserts are fixedly connected to the upper and lower parts of one side of the plurality of concrete blocks, and insertion holes are opened on the upper and lower parts of the other side of the plurality of concrete blocks. Adjacent concrete blocks are connected by inserts and insertion holes. Fixing bolts penetrate the front and rear parts of the upper surface of the plurality of concrete blocks. A screw hole is opened on the side of the upper surface of the inserts away from the concrete blocks. The outer side wall of the fixing bolt is threaded to the inner side wall of the screw hole.

[0010] As a further preferred embodiment of this technical solution: the gabion unit has a mesh structure and the interior of the gabion unit is filled with boulders.

[0011] As a further preferred embodiment of this technical solution, the rear surface of the concrete block is provided with multiple anti-slip protrusions.

[0012] As a further preferred embodiment of this technical solution: the buffer plate is an arc-shaped plate, and the front surface of the buffer plate is provided with multiple guide grooves.

[0013] As a further preferred embodiment of this technical solution: a limiting groove is provided on the front part of the upper surface of the reinforcing beam, and a limiting strip is provided on the front part of the lower surface of the concrete block, with the outer side wall of the limiting strip being fitted and connected to the inner side wall of the limiting groove.

[0014] As a further preferred embodiment of this technical solution: a strip-shaped limiting groove and a strip-shaped limiting block are respectively provided on the middle part of the adjacent side of two adjacent concrete blocks, and the outer side wall of the strip-shaped limiting block is attached to the inner side wall of the strip-shaped limiting groove.

[0015] As a further preferred embodiment of this technical solution: the bottom of the embankment body and the reinforcing beam are fixedly connected to a base layer.

[0016] Advantages of this invention: This invention utilizes a multi-layered structure consisting of a bottom protective layer, a middle reinforcement layer, and a top buffer layer on the front surface of the dike body. The bottom gabion unit is filled with boulders and fixed to the reinforcement beam to disperse the impact force of the water flow. The middle layer of concrete blocks is connected by inserts, bolts, and limiting structures to form a rigid whole. The top arc-shaped buffer plate is hinged via a pivot and, in conjunction with springs and guide channels, rotates to compress the springs to absorb energy when impacted. The three-layer structure works together to achieve dynamic buffering, rigid support, and flexible protection, solving the problems of insufficient scour prevention effect and poor structural coordination of existing single measures. This effectively prevents the dike foundation from being hollowed out and improves the scour resistance and stability of the dike. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the concrete block and buffer plate structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Another perspective structural diagram.

[0022] In the diagram: 11. Embankment body; 12. Reinforcing beam; 13. Bottom protective layer; 14. Middle reinforcement layer; 15. Top buffer layer; 16. Gabion unit; 17. Concrete block; 18. Buffer plate; 19. Rotating shaft; 20. Spring; 21. Connecting block; 22. Insert block; 23. Insertion hole; 24. Fixing bolt; 25. Screw hole; 26. Stone block; 27. Anti-slip protrusion; 28. Diversion channel; 29. ​​Limiting groove; 30. Limiting strip; 31. Strip-shaped limiting groove; 32. Strip-shaped limiting block; 33. Base layer. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "both sides", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1-4 As shown, the embankment toe scour prevention and reinforcement structure of this utility model includes an embankment body 11, a reinforcement beam 12 is provided at the bottom of the front surface of the embankment body 11, and a bottom protective layer 13, a middle reinforcement layer 14 and a top buffer layer 15 are sequentially provided on the upper part of the front surface of the embankment body 11 near the reinforcement beam 12.

[0027] The bottom protective layer 13 includes multiple gabion units 16, which are arranged along the length of the embankment body 11. The bottom of the gabion unit 16 is fixedly connected to the rear of the upper surface of the reinforcing beam 12, and two adjacent gabion units 16 are fixedly connected.

[0028] The middle reinforcement layer 14 includes multiple concrete blocks 17. The rear surface of the concrete blocks 17 is attached to the front surface of the bottom protective layer 13, and the bottom of the concrete blocks 17 is attached to the upper surface of the reinforcement beam 12 near the front of the gabion unit 16.

[0029] The top buffer layer 15 includes multiple buffer plates 18. One end of the buffer plate 18 is hinged to one side of the front surface of the concrete block 17 via a pivot 19. Multiple springs 20 are fixedly connected to the rear surface of the buffer plate 18 away from the pivot 19. The rear surface of the springs 20 is fixedly connected to the other side of the front surface of the concrete block 17 via a connecting block 21. The springs 20 are made of stainless steel or have a surface anti-corrosion coating. The elastic deformation of the springs 20 absorbs the energy of the water flow and converts the kinetic energy into elastic potential energy, thereby reducing the scouring force of the water flow on the embankment body 11.

[0030] In this embodiment, insert blocks 22 are fixedly connected to the upper and lower parts of one side of multiple concrete blocks 17, and insertion holes 23 are opened on the upper and lower parts of the other side of multiple concrete blocks 17. Adjacent concrete blocks 17 are connected by the cooperation of insert blocks 22 and insertion holes 23. Fixing bolts 24 are passed through the front and rear parts of the upper surface of multiple concrete blocks 17. A screw hole 25 is opened on the side of the upper surface of the insert block 22 away from the concrete block 17. The outer side wall of the fixing bolt 24 is threaded to the inner side wall of the screw hole 25. Through the cooperation of insert blocks 22, insertion holes 23 and fixing bolts 24, it is easy to fix two adjacent concrete blocks 17.

[0031] In this embodiment, the gabion unit 16 has a mesh structure and is filled with stones 26. Water flows through the stones 26 inside the gabion unit 16 and dissipates energy through the friction between the stones 26 and the water flow, thereby avoiding local stress concentration erosion.

[0032] In this embodiment, the rear surface of the concrete block 17 is provided with multiple anti-slip protrusions 27. The multiple anti-slip protrusions 27 increase the friction between the concrete block 17 and the bottom protective layer 13, thereby preventing the middle reinforcement layer 14 from sliding as a whole and increasing the stability of the middle reinforcement layer 14 against erosion.

[0033] In this embodiment, the buffer plate 18 is an arc-shaped plate, and the front surface of the buffer plate 18 is provided with multiple guide grooves 28. The guide grooves 28 facilitate the guidance of the water flow direction and prevent the concentrated impact of water flow stress.

[0034] In this embodiment, a limiting groove 29 is provided on the front part of the upper surface of the reinforcing beam 12, and a limiting strip 30 is provided on the front part of the lower surface of the concrete block 17. The outer side wall of the limiting strip 30 is attached to the inner side wall of the limiting groove 29. The limiting groove 29 limits the limiting strip 30, thereby preventing the concrete block 17 from shifting, and thus increasing the firmness of the concrete block 17.

[0035] In this embodiment, a strip-shaped limiting groove 31 and a strip-shaped limiting block 32 are respectively provided on the middle part of the side of two adjacent concrete blocks 17. The outer side wall of the strip-shaped limiting block 32 is attached to the inner side wall of the strip-shaped limiting groove 31. The strip-shaped limiting groove 31 limits the strip-shaped limiting block 32, thereby increasing the stability of the connection between the two adjacent concrete blocks 17.

[0036] In this embodiment, the bottom of the embankment body 11 and the reinforcing beam 12 are fixedly connected to the base layer 33; the impact force is transmitted to the riverbed base layer 33 by connecting the reinforcing beam 12 to the base layer 33 at the bottom of the embankment body 11, thereby offsetting the scouring effect of the water flow on the foundation of the embankment body 11 by the supporting force of the base layer 33.

[0037] Working principle or structural principle: During use, when the water flow scours the toe of the embankment, the buffer plate 18 of the top buffer layer 15 first contacts the water flow. The impact force of the water flow pushes the buffer plate to rotate around the pivot 19. At this time, the spring 20 on the rear surface of the buffer plate 19 is compressed. The elastic deformation of the spring 20 absorbs the energy of the water flow, converting kinetic energy into elastic potential energy, reducing the scouring force of the water flow on the embankment body 11. When the impact force of the water flow weakens, the spring 20 restores its deformation, pushing the buffer plate 18 to reset, forming a reciprocating buffering mechanism to continuously resist the impact of subsequent water flow. The buffered water flow impacts the concrete block 17 of the middle reinforcement layer. The concrete block 17 is connected by the cooperation of the insert 22 and the insert hole 23, combined with the fixing method of the fixing bolt 24 through the screw hole 25, forming an integral rigid structure. The structure is designed to resist continuous erosion by water flow. The limiting strip 30 on the lower surface of the concrete block 17 is embedded in the limiting groove 29 of the reinforcing beam 12. The strip-shaped limiting blocks 32 and strip-shaped limiting grooves 31 between adjacent concrete blocks 17 interlock to prevent the concrete blocks 17 from shifting laterally or longitudinally under the impact of water flow. At the same time, the anti-slip protrusions 27 on the rear surface of the concrete block 17 are in close contact with the bottom protective layer 13 to increase the friction with the bottom protective layer 13, prevent the middle reinforcing layer 14 from sliding as a whole, and further improve the erosion resistance stability. After passing through the middle layer, the water flow is transmitted to the gabion unit 16 of the bottom protective layer. The gabion unit 16 has a mesh structure and is filled with stones 26. The gaps between the stones 26 allow water flow to penetrate and dissipate energy through friction, avoiding local stress concentration.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dike toe erosion prevention and reinforcement structure, comprising the dike toe body (11), characterized in that, A reinforcing beam (12) is provided at the bottom of the front surface of the embankment body (11). A bottom protective layer (13), a middle reinforcing layer (14) and a top buffer layer (15) are sequentially provided on the upper part of the front surface of the embankment body (11) near the reinforcing beam (12). The bottom protective layer (13) includes multiple gabion units (16), which are arranged along the length of the main body (11) of the embankment. The bottom of the gabion unit (16) is fixedly connected to the rear part of the upper surface of the reinforcing beam (12), and two adjacent gabion units (16) are fixedly connected. The middle reinforcement layer (14) includes multiple concrete blocks (17), the rear surface of the concrete blocks (17) is attached to the front surface of the bottom protective layer (13), and the bottom of the concrete blocks (17) is attached to the upper surface of the reinforcement beam (12) near the front of the gabion unit (16). The top buffer layer (15) includes multiple buffer plates (18). One end of the buffer plate (18) is hinged to one side of the front surface of the concrete block (17) via a pivot (19). Multiple springs (20) are fixedly connected to the rear surface of the buffer plate (18) away from the pivot (19). The rear surface of the springs (20) is fixedly connected to the other side of the front surface of the concrete block (17) via a connecting block (21).

2. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The upper and lower parts of one side of each of the multiple concrete blocks (17) are fixedly connected with inserts (22), and the upper and lower parts of the other side of each of the multiple concrete blocks (17) are provided with insertion holes (23). Two adjacent concrete blocks (17) are connected by inserts (22) and insertion holes (23). The front and rear parts of the upper surface of each of the multiple concrete blocks (17) are provided with fixing bolts (24). The upper surface of the insert (22) away from the concrete block (17) is provided with screw holes (25). The outer side wall of the fixing bolt (24) is threaded to the inner side wall of the screw hole (25).

3. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The gabion unit (16) has a mesh structure and is filled with boulders (26).

4. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The rear surface of the concrete block (17) is provided with multiple anti-slip protrusions (27).

5. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The buffer plate (18) is an arc-shaped plate, and multiple guide grooves (28) are provided on the front surface of the buffer plate (18).

6. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The upper surface of the reinforcing beam (12) has a limiting groove (29) at the front, and the lower surface of the concrete block (17) has a limiting strip (30) at the front. The outer side wall of the limiting strip (30) is attached to the inner side wall of the limiting groove (29).

7. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, A strip-shaped limiting groove (31) and a strip-shaped limiting block (32) are respectively provided on the middle part of the adjacent side of two concrete blocks (17), and the outer side wall of the strip-shaped limiting block (32) is attached to the inner side wall of the strip-shaped limiting groove (31).

8. The embankment toe erosion prevention and reinforcement structure according to claim 1, characterized in that, The bottom of the embankment body (11) and the reinforcing beam (12) are fixedly connected to the base layer (33).

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