A slope protection dam for Yellow River channel regulation

Abstract

The utility model belongs to river regulation engineering technical field especially is a kind of slope protection dam for Yellow River regulation, including dam base body, the water side of dam base body is equipped with spliced waterproof slope protection board, modularization slope protection unit and bidirectional buffer mechanism;Bidirectional buffer mechanism is located at the low of spliced waterproof slope protection board, it includes two interval distribution's buffer plate and the elastic isolation component between two buffer plates;Bidirectional buffer mechanism realizes bidirectional buffering by elastic isolation component, effectively disperses the impact force of high-speed water flow and silt, avoids structural damage caused by stress concentration;Modularization slope protection unit and spliced waterproof slope protection board design, all adopt detachable connection, when local damage, can be individually replaced, need not integral disassembly and improvement, greatly reduce maintenance cost and construction difficulty, improve maintenance efficiency;The planting cavity of precast slope protection brick can realize ecological planting, give consideration to river regulation and ecological restoration, improve environmental compatibility, improve river ecological environment.

Description

Technical Field

[0001] This utility model belongs to the field of river management engineering technology, specifically relating to a slope protection embankment for Yellow River channel management. Background Technology

[0002] Due to the special conditions of the Yellow River channel, such as high sediment content, drastic fluctuations in water flow velocity, and strong impact of water flow during the flood season, extremely high requirements are placed on the structural stability and impact resistance of the slope protection embankments.

[0003] Existing slope protection embankments mostly adopt concrete pouring, masonry stacking, or eco-bag stacking structures, which have the following defects: 1. Concrete pouring and masonry stacking structures are rigid and lack buffering capacity. When high-speed water flow carries mud and sand, stress concentration can easily lead to structural cracking and collapse; 2. Eco-bag stacking structures have poor overall integrity, insufficient impact resistance, and require large-scale replacement after local damage, resulting in low maintenance efficiency and high cost.

[0004] To address the aforementioned problems, this utility model proposes a slope protection embankment for Yellow River channel management. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a slope protection embankment for Yellow River channel management, which features convenient use, high stability, and low maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a slope protection embankment for Yellow River channel management, comprising an embankment base, wherein the water-facing side of the embankment base is provided with a spliced ​​waterproof slope protection board, a modular slope protection unit, and a bidirectional buffer mechanism; The spliced ​​waterproof slope protection board is installed on the water-facing side of the dam foundation, and a waterproof seal is provided at the splice of two adjacent spliced ​​waterproof slope protection boards. The spliced ​​waterproof slope protection board is provided with an installation groove, and the modular slope protection unit can be detachably installed in the installation groove. The modular slope protection unit is composed of multiple prefabricated slope protection bricks that are snapped together, and a planting cavity is provided on the prefabricated slope protection bricks. The bidirectional buffer mechanism is located at the lower position of the spliced ​​waterproof slope protection board, and includes two buffer plates spaced apart and an elastic isolation component located between the two buffer plates. Two sets of spaced-apart limiting components are fixed on the spliced ​​waterproof slope protection board, and the buffer plate is located between the two sets of limiting components to limit the rotation range of the buffer plate.

[0007] As a preferred embodiment of this utility model, multiple sets of the elastic isolation components are hinged at equal intervals along the horizontal direction between the two buffer plates.

[0008] As a preferred embodiment of the present invention, the elastic isolation component includes a telescopic rod, a limiting ring, and a buffer spring; The two ends of the telescopic rod are respectively hinged to the two buffer plates; Limit rings are fixed at both ends of the telescopic rod; The buffer spring is sleeved on the telescopic rod and positioned between the two limiting rings.

[0009] As a preferred technical solution of this utility model, the limiting component includes a stop plate; The stop plate is welded and fixed to the spliced ​​waterproof slope protection plate.

[0010] As a preferred technical solution of this utility model, each of the two opposite outer surfaces of the precast slope protection brick is provided with two symmetrically distributed L-shaped locking blocks, and the inner space of the two L-shaped locking blocks and the outer wall of the precast slope protection brick form a T-shaped locking groove for the L-shaped locking blocks to be inserted.

[0011] As a preferred embodiment of this utility model, the outer wall of the L-shaped card block is fitted to the inner wall of the T-shaped card slot.

[0012] As a preferred technical solution of this utility model, the bottom surface of the spliced ​​waterproof slope protection board is welded and fixed with multiple equally spaced reinforcing plates.

[0013] As a preferred technical solution of this utility model, one end of the splicing waterproof slope protection board is fixed with a splicing protrusion, and the other end is provided with a splicing groove that matches the splicing protrusion.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The bidirectional buffer mechanism achieves bidirectional buffering through elastic isolation components, effectively dispersing the impact force of high-speed water flow and sediment, avoiding structural damage caused by stress concentration, significantly improving the dam's impact resistance performance, and adapting to the strong impact conditions of the Yellow River channel. 2. The modular slope protection unit and spliced ​​waterproof slope protection board design are all detachable. When a part is damaged, it can be replaced individually without the need for overall dismantling and modification, which greatly reduces maintenance costs and construction difficulty and improves maintenance efficiency. 3. The planting cavity of precast slope protection bricks can realize ecological planting, take into account river management and ecological restoration, improve environmental compatibility, and improve the ecological environment of the river.

[0015] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified schematic diagram of the bidirectional buffer mechanism in the diagram; Figure 3 This is an isometric structural diagram of the modular slope protection unit in this utility model; Figure 4 This is a schematic diagram of the isometric structure of this utility model; Figure 5 This is a schematic diagram of the splicing structure of the waterproof slope protection board in this utility model.

[0017] In the diagram: 1. Dam base; 2. Interlocking waterproof slope protection board; 21. Installation groove; 22. Interlocking protrusion; 23. Interlocking groove; 24. Waterproof sealant; 3. Modular slope protection unit; 31. Precast slope protection brick; 32. Planting cavity; 33. L-shaped locking block; 331. T-shaped locking groove; 4. Two-way buffer mechanism; 41. Buffer plate; 42. Telescopic rod; 43. Limiting ring; 44. Buffer spring; 45. Stop plate; 5. Reinforcing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 The present invention provides the following technical solution: a slope protection embankment for Yellow River channel management, including an embankment base 1, wherein the water-facing side of the embankment base 1 is provided with a spliced ​​waterproof slope protection plate 2, a modular slope protection unit 3 and a two-way buffer mechanism 4.

[0020] Furthermore, by Figures 1-3 , Figure 5As shown, in this embodiment, the spliced ​​waterproof slope protection panel 2 is fitted to the water-facing surface of the dam base 1, and a waterproof seal 24 is provided at the splicing point of two adjacent spliced ​​waterproof slope protection panels 2; the spliced ​​waterproof slope protection panel 2 is provided with an installation groove 21, and the modular slope protection unit 3 is detachably installed in the installation groove 21, and the modular slope protection unit 3 is composed of multiple prefabricated slope protection bricks 31 that are snapped together, and a planting cavity 32 is provided on the prefabricated slope protection brick 31; the bidirectional buffer mechanism 4 is located at the lower position of the spliced ​​waterproof slope protection panel 2, and includes two spaced buffer plates 41 and a buffer plate 41 located at the two... Elastic isolation components between buffer plates 41; two sets of spaced limiting components are fixed on the spliced ​​waterproof slope protection plate 2, with the buffer plate 41 located between the two sets of limiting components to limit the rotation range of the buffer plate 41. After adopting the above scheme, when in use, the spliced ​​waterproof slope protection plate 2 is tightly attached to the water-facing side of the dam base 1, and its splice is pre-set with waterproof sealing parts 24 (such as EPDM rubber strips), which can block the Yellow River water (including high sediment water) from seeping into the interior of the dam base 1, avoiding the risk of dam piping and dam collapse caused by seepage (a common cause of instability of Yellow River dams).

[0021] The spliced ​​waterproof slope protection panel 2 is made of prefabricated high-strength materials (such as stainless steel plates, reinforced concrete plates, FRP plates, etc.), which not only provides a stable installation benchmark for the modular slope protection unit 3 (positioned by the installation groove 21), but also evenly transmits the impact force of water flow to the dam base 1, avoiding structural damage caused by local stress concentration.

[0022] The modular slope protection unit 3 is composed of multiple prefabricated slope protection bricks 31 joined together by a mortise and tenon structure. The joining structure can offset the lateral thrust of the water flow on a single prefabricated slope protection brick 31, forming an overall erosion-resistant structure to resist the direct scouring of the Yellow River flood season on the water-facing side of the dam foundation 1.

[0023] Planting cavities 32 of precast slope protection bricks 31 are filled with water-tolerant, well-rooted native plants (such as reeds and calamus). The plant roots can penetrate the gaps between the bricks and reach the surface soil of the embankment base 1, forming a three-dimensional reinforcement system of "plants-precast slope protection bricks 31-soil". At the same time, the plant stems and leaves can slow down the near-shore water flow and promote the orderly settling of sediment during the non-flood season (avoiding direct impact of sediment on the embankment base 1), and can also improve the river ecological environment.

[0024] When a section of the precast slope protection brick 31 is damaged by erosion, the interlocking structure can be directly disassembled to replace the individual precast slope protection brick 31, without the need to dismantle the entire modular slope protection unit 3, thus reducing the emergency maintenance cost during the Yellow River flood season.

[0025] The bidirectional buffer mechanism 4 is located at the low position of the spliced ​​waterproof slope protection plate 2 (corresponding to the area below the normal water level of the Yellow River, which bears the maximum water flow impact). When the Yellow River water flows forward and impacts (such as during the flood season), the outer buffer plate 41 is pushed inward by the water flow to compress the elastic isolation component. The elastic component absorbs the impact energy through deformation, transforming the "rigid impact" into "elastic buffer". When the water flow acts in the opposite direction (such as during the flood season backflow, vortex, or reverse suction caused by a sudden drop in water level during the non-flood season), the inner buffer plate 41 compresses the elastic isolation component outward, repeating the above energy dissipation process to achieve "bidirectional erosion resistance".

[0026] Two sets of spaced limiting components limit the flipping angle of the buffer plate 41, preventing the buffer plate 41 from over-flipping or falling off due to excessive water flow, ensuring that the elastic isolation component is always within the effective deformation range and continues to play its energy dissipation role.

[0027] When the Yellow River water flows, most of the impact force is first dissipated by the bidirectional buffer mechanism 4; the remaining impact force is evenly transmitted to the dam base 1 through the spliced ​​waterproof slope protection board 2; the modular slope protection unit 3 further resists the lateral scouring of the spliced ​​waterproof slope protection board 2 by the water flow through the brick splicing structure and plant root system, and reduces the blockage of the bidirectional buffer mechanism 4 by the silt through the flow retention effect of the plants (avoiding the buffer board 41 from getting stuck); at the same time, the seepage prevention function of the spliced ​​waterproof slope protection board 2 ensures that the dam base 1 is dry and stable, avoiding the softening and settlement of the dam base 1 caused by water seepage.

[0028] During the flood season, the rigid protection of the bidirectional buffer mechanism 4 and the modular slope protection unit 3 resists strong impacts; during the non-flood season, the plant growth in the planting cavity 32 consolidates the dam base 1, while the spliced ​​waterproof slope protection board 2 blocks rainwater infiltration, ensuring the stability of the dam during the non-flood season.

[0029] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, multiple sets of elastic isolation components are hinged at equal intervals between two buffer plates 41 in the horizontal direction. With the above scheme, in use, firstly, the equally spaced distribution design can make the water flow impact force on the two buffer plates 41 evenly transmitted to each elastic isolation component in the horizontal direction, avoiding overload damage to the components caused by local force concentration, adapting to the uneven impact intensity of the Yellow River water flow, and extending the overall service life of the buffer mechanism.

[0030] Secondly, the hinged connection method can give the elastic isolation components and the buffer plate 41 flexible rotational freedom. When the water flow acts on the buffer plate 41 in the forward or reverse direction, each elastic isolation component can adapt to the deformation synchronously with the flip angle of the buffer plate 41. This ensures the energy dissipation efficiency under bidirectional impact and avoids motion jamming caused by rigid connection, effectively reducing the risk of sediment accumulation at the connection of the elastic isolation components.

[0031] Furthermore, the synergistic effect of multiple sets of elastic isolation components can form a continuous buffer barrier. Compared with a single set or non-uniformly distributed structure, it can further disperse the impact energy of water flow, reduce the local deformation of buffer plate 41, and, together with the constraint effect of the limiting components, more accurately control the flipping range of buffer plate 41, ensuring the stable performance of bidirectional buffer function, thereby improving the erosion protection reliability of the entire slope protection embankment on the water-facing side.

[0032] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the elastic isolation component includes a telescopic rod 42, a limiting ring 43, and a buffer spring 44. The two ends of the telescopic rod 42 are respectively hinged to two buffer plates 41. Limiting rings 43 are fixed at both ends of the telescopic rod 42. The buffer spring 44 is sleeved on the telescopic rod 42 and is located between the two limiting rings 43. With the above scheme, when the Yellow River water flows forward and impacts the outer buffer plate 41, the outer buffer plate 41 is forced to flip inward, and drives one end of the telescopic rod 42 to move synchronously through the hinge point, so that the entire telescopic rod 42 shortens axially. At this time, the limiting rings 43 at both ends of the telescopic rod 42 move closer to each other as the telescopic rod 42 shortens. The buffer spring 44 sleeved on the telescopic rod 42 is squeezed and contracted by the two limiting rings 43. The elastic restoring force generated by the deformation of the buffer spring 44 offsets the impact force of the water flow, and converts the impact kinetic energy into the elastic potential energy of the buffer spring 44, realizing the first stage of energy absorption.

[0033] When the water flow reverses (such as backflow or vortex impacting the inner buffer plate 41), the inner buffer plate 41 flips outward. Similarly, the other end of the telescopic rod 42 moves through the hinge point, causing the telescopic rod 42 to shorten axially. The two limiting rings 43 move closer to each other again and compress the buffer spring 44. The buffer spring 44 absorbs the reverse impact energy in the same elastic deformation manner, completing the symmetrical energy dissipation of bidirectional impact.

[0034] The telescopic rod 42 acts as a rigid guide throughout the process, ensuring that the buffer spring 44 only extends and retracts axially without lateral displacement or twisting, thus preventing the buffer spring 44 from jamming or breaking due to uneven force. The limiting ring 43 strictly limits the maximum compression of the buffer spring 44, preventing the buffer spring 44 from losing its elastic recovery ability due to excessive deformation. At the same time, through the fixed connection with the telescopic rod 42, the elastic force of the buffer spring 44 is accurately transmitted to the two buffer plates 41. After the impact force weakens, the buffer plates 41 are pushed back to the initial position, ensuring the continuous cyclic operation capability of the bidirectional buffer mechanism 4.

[0035] Preferably, by Figure 1 and Figure 2As shown in this embodiment, the limiting component includes a stop plate 45. The stop plate 45 is welded and fixed to the spliced ​​waterproof slope protection plate 2. With the above solution, when in use, the welding fixing method (when the spliced ​​waterproof slope protection plate 2 is made of stainless steel plate) can form a rigid connection structure, which can firmly combine the stop plate 45 and the spliced ​​waterproof slope protection plate 2 into a whole, ensuring that the stop plate 45 will not loosen, shift or fall off when the buffer plate 41 is repeatedly impacted, ensuring the long-term stability of the limiting function, and avoiding damage to the elastic isolation component due to excessive flipping of the buffer plate 41 caused by limiting failure.

[0036] As a solid stop, the stop plate 45 can precisely limit the rotation range through direct contact with the buffer plate 41. Combined with the deformation range of the elastic isolation component, it can strictly control the maximum rotation angle of the buffer plate 41, ensuring that the elastic isolation component is always in the safe deformation range. This fully utilizes its buffering and energy dissipation function, while avoiding loss of reset capability due to excessive deformation, thereby improving the overall reliability of the bidirectional buffer mechanism 4.

[0037] Optionally, by Figure 1 and Figure 3 As shown in this embodiment, each of the two opposite outer surfaces of the prefabricated slope protection brick 31 is provided with two symmetrically distributed L-shaped locking blocks 33. The inner space of the two L-shaped locking blocks 33 and the outer wall of the prefabricated slope protection brick 31 form a T-shaped slot 331 for the L-shaped locking blocks 33 to be inserted. With the above solution, during the assembly stage of the modular slope protection unit 3, when aligning adjacent prefabricated slope protection bricks 31 in the horizontal or vertical direction, the L-shaped locking block 33 of one slope protection brick can be directly inserted into the T-shaped slot 331 of the other slope protection brick. Since the T-shaped slot 331 is formed by the inner space of the L-shaped locking block 33 and the outer wall of the prefabricated slope protection brick 31, its slot shape and size are completely matched with the L-shaped locking block 33, which can achieve seamless fitting. Initial positioning can be completed without additional connectors. Moreover, the two symmetrically distributed L-shaped locking blocks 33 can form a two-way constraint from both sides, avoiding lateral misalignment or tilting of the prefabricated slope protection brick 31 during splicing, and ensuring the flatness of the entire modular slope protection unit 3.

[0038] When the Yellow River water flows and impacts the slope protection unit, the lateral thrust generated by the water flow on a single precast slope protection brick 31 is transmitted to the side wall of the T-shaped slot 331 through the L-shaped locking block 33. On the one hand, the longitudinal side wall of the T-shaped slot 331 can block the displacement of the L-shaped locking block 33 along the direction of water flow, dispersing the force on the single precast slope protection brick 31 to the adjacent precast slope protection bricks 31, forming an overall structure of "multi-brick collaborative erosion resistance", avoiding the single precast slope protection brick 31 from falling off due to excessive local stress. On the other hand, the symmetrically arranged L-shaped locking blocks 33 can make the force evenly distributed along both sides of the precast slope protection brick 31, preventing the precast slope protection brick 31 from flipping or warping due to unilateral stress, and further improving the erosion resistance stability of the spliced ​​structure.

[0039] Preferably, by Figure 1 and Figure 3 As shown in this embodiment, the outer wall of the L-shaped card block 33 is fitted to the inner wall of the T-shaped card slot 331. With the above solution, the fitting design eliminates the gap between the L-shaped card block 33 and the T-shaped card slot 331 during use, so that adjacent precast slope protection bricks 31 form a rigid connection through "surface contact" rather than "point contact" or "line contact".

[0040] When the Yellow River water flows into the modular slope protection unit 3, the lateral thrust borne by a single precast slope protection brick 31 can be evenly transferred to the adjacent precast slope protection bricks 31 through the entire bonding surface, avoiding stress concentration caused by local gaps, preventing the L-shaped card block 33 or T-shaped card slot 331 from breaking or deforming due to excessive local stress, thereby ensuring the overall erosion resistance of the modular slope protection unit 3 and adapting to the scenario of strong water flow impact during the Yellow River flood season.

[0041] The Yellow River has a high sediment content. If there is a gap between the L-shaped locking block 33 and the T-shaped locking groove 331, sediment can easily seep in with the water flow and accumulate in the gap. Over time, this can easily cause the locking structure to jam, making it difficult to disassemble when replacing the damaged precast slope protection bricks 31. However, the fitting design of the outer and inner walls can form a "sealed" splice, blocking the channel for sediment to enter the gap, avoiding structural failure caused by siltation, and reducing maintenance costs caused by sediment cleaning. This design is suitable for the long-term use needs of the Yellow River's high sediment environment.

[0042] Preferably, by Figure 1 and Figure 4 As shown in this embodiment, multiple equally spaced reinforcing plates 5 are welded and fixed to the bottom surface of the spliced ​​waterproof slope protection panel 2. With the above solution, during use, the reinforcing plates 5 form a rigid whole with the spliced ​​waterproof slope protection panel 2 by welding (when the spliced ​​waterproof slope protection panel 2 is made of stainless steel). During installation, they can be partially embedded in the surface soil or concrete structure of the dam base 1, which is equivalent to building an "anchor support" between the spliced ​​waterproof slope protection panel 2 and the dam base 1. When the Yellow River water flow generates a lateral impact force on the spliced ​​waterproof slope protection panel 2 (such as the lateral impact of the rapid current during the flood season), the equally spaced reinforcing plates 5 can evenly disperse the impact force and transfer the force of the spliced ​​waterproof slope protection panel 2 to the deep layer of the dam base 1. This prevents the spliced ​​waterproof slope protection panel 2 from slipping or warping due to excessive force on one side, ensuring the fit and sealing between the spliced ​​waterproof slope protection panel 2 and the dam base 1, and preventing the formation of seepage channels due to gaps.

[0043] The spliced ​​waterproof slope protection slab 2 is subjected to long-term water flow impact, silt compression, and temperature changes (such as winter frost heave), which can easily lead to cracking due to local stress concentration. The equally spaced reinforcing plates 5 can serve as "reinforcing ribs" for the spliced ​​waterproof slope protection slab 2. The rigid connection formed by welding enhances the structural strength of the bottom surface of the spliced ​​waterproof slope protection slab 2, making the overall stress of the spliced ​​waterproof slope protection slab 2 more uniform, reducing deformation or cracking caused by excessive local load, extending the service life of the spliced ​​waterproof slope protection slab 2, and making it suitable for the long-term harsh use environment of the Yellow River channel.

[0044] Preferably, by Figure 1 and Figure 5 As shown in this embodiment, one end of the splicing waterproof slope protection board 2 is fixed with a splicing protrusion 22, and the other end is provided with a splicing groove 23 that matches the splicing protrusion 22. After adopting the above solution, during the laying stage of the splicing waterproof slope protection board 2, when two adjacent splicing waterproof slope protection boards 2 are joined together, the splicing protrusion 22 of one splicing waterproof slope protection board 2 can be embedded horizontally into the splicing groove 23 of the other splicing waterproof slope protection board 2.

[0045] Since the splicing protrusion 22 and the splicing groove 23 are perfectly matched in shape and size (such as complementary structures with rectangular or trapezoidal cross sections), they can form a tight fit. Initial positioning can be completed without additional connectors, ensuring the flatness of multiple spliced ​​waterproof slope protection panels 2 when continuously laid along the water-facing side of the dam base 1, and avoiding height differences caused by splicing offset.

[0046] When the Yellow River water flows and impacts the spliced ​​waterproof slope protection panel 2, the lateral thrust generated by the water flow is transmitted to the adjacent spliced ​​waterproof slope protection panel 2 through the splicing structure: the side wall of the splicing protrusion 22 is in close contact with the inner wall of the splicing groove 23, so that the impact force borne by a single spliced ​​waterproof slope protection panel 2 is dispersed to the entire splicing system through surface contact, forming an overall anti-impact structure of "multi-panel linkage", which avoids the displacement or warping of a single spliced ​​waterproof slope protection panel 2 due to excessive local stress, and ensures the fit between the spliced ​​waterproof slope protection panel 2 and the dam base 1.

[0047] The tight fit between the splicing protrusion 22 and the splicing groove 23 can significantly reduce the gap between the joints. Combined with the pre-set waterproof sealant 24 (such as EPDM rubber strip), it can effectively block the path of Yellow River water (containing high sediment) from seeping into the dam base 1 from the joint, and avoid softening or piping of the dam base 1 due to water seepage.

[0048] Components not described in detail in this article are existing technologies.

[0049] The working principle and usage process of this utility model: When using the Yellow River channel management slope protection embankment of this utility model, the spliced ​​waterproof slope protection board 2 is tightly attached to the water-facing side of the embankment base 1. The splice joint is pre-set with waterproof sealing parts 24 (such as EPDM rubber strips), which can block the Yellow River water (including water with high sediment) from seeping into the interior of the embankment base 1, and avoid the risk of embankment piping and collapse caused by seepage (a common cause of instability of Yellow River embankments). The spliced ​​waterproof slope protection board 2 is made of prefabricated high-strength materials (such as stainless steel plates, reinforced concrete plates, FRP plates, etc.), which not only provides a stable installation benchmark for the modular slope protection unit 3 (positioned by the installation groove 21), but also evenly transmits the impact force of water flow to the dam base 1, avoiding structural damage caused by local stress concentration. The modular slope protection unit 3 is composed of multiple prefabricated slope protection bricks 31 that are joined together by a mortise and tenon structure. The joining structure can offset the lateral thrust of the water flow on a single prefabricated slope protection brick 31, forming an overall erosion-resistant structure to resist the direct scouring of the Yellow River flood season on the water-facing side of the dam foundation 1. Planting cavities 32 of precast slope protection bricks 31 are filled with water-tolerant native plants (such as reeds and calamus) with well-developed root systems. The plant roots can penetrate the gaps between the bricks and reach the surface soil of the embankment base 1, forming a three-dimensional reinforcement system of "plants-precast slope protection bricks 31-soil". At the same time, the plant stems and leaves can slow down the near-shore water flow speed, promote the orderly settlement of sediment during the non-flood season (avoiding direct impact of sediment on the embankment base 1), and improve the river ecological environment. When a section of the precast slope protection brick 31 is damaged by erosion, the interlocking structure can be directly disassembled to replace the single precast slope protection brick 31 without the need to completely dismantle the modular slope protection unit 3, thus reducing the emergency maintenance cost during the Yellow River flood season. The bidirectional buffer mechanism 4 is located at the low position of the spliced ​​waterproof slope protection plate 2 (corresponding to the area below the normal water level of the Yellow River, which bears the maximum water flow impact). When the Yellow River water flows in the forward direction (such as during the flood season), the outer buffer plate 41 is pushed inward by the water flow to compress the elastic isolation component. The elastic component absorbs the impact energy through deformation, transforming the "rigid impact" into "elastic buffer". When the water flow acts in the opposite direction (such as backflow during the flood season, vortex, or reverse suction caused by a sudden drop in water level during the non-flood season), the inner buffer plate 41 squeezes the elastic isolation component to the outside, repeating the above energy dissipation process to achieve "bidirectional shock resistance". Two sets of spaced limiting components limit the flipping angle of the buffer plate 41, preventing the buffer plate 41 from flipping excessively or falling off due to excessive water flow, ensuring that the elastic isolation component is always within the effective deformation range and continues to play an energy dissipation role. When the Yellow River flows, most of the impact force is first dissipated by the bidirectional buffer mechanism 4; the remaining impact force is evenly transmitted to the dam base 1 through the spliced ​​waterproof slope protection board 2; the modular slope protection unit 3 further resists the lateral scouring of the spliced ​​waterproof slope protection board 2 by the brick splicing structure and plant root system, and reduces the blockage of the bidirectional buffer mechanism 4 by the silt through the flow retention effect of the plants (avoiding the buffer board 41 from getting stuck). Meanwhile, the seepage prevention function of the spliced ​​waterproof slope protection board 2 ensures that the dam foundation 1 is dry and stable, avoiding the softening and settlement of the dam foundation 1 caused by water seepage; During the flood season, the rigid protection of the bidirectional buffer mechanism 4 and the modular slope protection unit 3 resists strong impacts; during the non-flood season, the plant growth in the planting cavity 32 consolidates the dam base 1, while the spliced ​​waterproof slope protection board 2 blocks rainwater infiltration, ensuring the stability of the dam during the non-flood season.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A revetment embankment for Yellow River channel management, comprising an embankment base (1), characterized in that: The water-facing side of the dam base (1) is provided with spliced ​​waterproof slope protection board (2), modular slope protection unit (3) and bidirectional buffer mechanism (4). The spliced ​​waterproof slope protection board (2) is fitted to the water-facing surface of the dam base (1), and a waterproof seal (24) is provided at the splice of two adjacent spliced ​​waterproof slope protection boards (2). The spliced ​​waterproof slope protection board (2) is provided with an installation groove (21), the modular slope protection unit (3) is detachably installed in the installation groove (21), and the modular slope protection unit (3) is composed of multiple prefabricated slope protection bricks (31) snapped together, and a planting cavity (32) is provided on the prefabricated slope protection bricks (31). The bidirectional buffer mechanism (4) is located at the lower position of the spliced ​​waterproof slope protection board (2), and includes two buffer plates (41) spaced apart and an elastic isolation component between the two buffer plates (41). The spliced ​​waterproof slope protection board (2) is fixed with two sets of spaced limiting components, and the buffer plate (41) is located between the two sets of limiting components to limit the rotation range of the buffer plate (41).

2. The revetment embankment for Yellow River channel management according to claim 1, characterized in that: Multiple sets of the elastic isolation components are hinged at equal intervals along the horizontal direction between the two buffer plates (41).

3. The revetment embankment for Yellow River channel management according to claim 1, characterized in that: The elastic isolation assembly includes a telescopic rod (42), a limiting ring (43), and a buffer spring (44). The two ends of the telescopic rod (42) are respectively hinged to the two buffer plates (41); Limiting rings (43) are fixed at both ends of the telescopic rod (42); The buffer spring (44) is sleeved on the telescopic rod (42) and located between the two limiting rings (43).

4. A revetment embankment for Yellow River channel management according to claim 1, characterized in that: The limiting component includes a stop plate (45); The stop plate (45) is welded and fixed to the spliced ​​waterproof slope protection plate (2).

5. A revetment embankment for Yellow River channel management according to claim 1, characterized in that: The precast slope protection brick (31) has two symmetrically distributed L-shaped blocks (33) on its two opposite outer sides. The inner space of the two L-shaped blocks (33) and the outer wall of the precast slope protection brick (31) form a T-shaped slot (331) for the L-shaped blocks (33) to be embedded.

6. A revetment embankment for Yellow River channel management according to claim 5, characterized in that: The outer wall of the L-shaped card block (33) is attached to the inner wall of the T-shaped card slot (331).

7. A revetment embankment for Yellow River channel management according to claim 1, characterized in that: The bottom surface of the spliced ​​waterproof slope protection board (2) is welded and fixed with multiple equally spaced reinforcing plates (5).

8. A revetment embankment for Yellow River channel management according to claim 1, characterized in that: One end of the spliced ​​waterproof slope protection board (2) is fixed with a splicing protrusion (22), and the other end is provided with a splicing groove (23) that matches the splicing protrusion (22).

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