Thin-wall concrete protection structure for ship lock overflow channel

Abstract

The utility model discloses a kind of shiplock overflow open channel thin-wall concrete slope protection structures, belong to shiplock overflow engineering technical field, including open channel flow channel, concrete wall cofferdam slope body;Slope protection component includes concrete lower protection slope, sandstone slope body, concrete filling pouring layer, water-permeable crushed stone cushion layer and water-permeable concrete trowelling layer;Slope anti-skid anti-falling piece includes slope reinforcement net and concrete slope board fixed in two concrete wall cofferdam slope body opposite sides in turn, the bottom end of two concrete slope board is fixed with anti-skid blocking section steel, anti-skid blocking section steel supports and blocks concrete slope board from sliding down;Two concrete wall cofferdam slope body opposite sides are all longitudinally constructed with slope support pile, and each slope support pile is connected by triangle support pull rod group and adjacent slope protection component fastening pull hold. The utility model improves the anti-slippage performance of slope protection structure, and guarantees the safety in the process of structure operation.

Description

Technical Field

[0001] This utility model belongs to the field of ship lock flow engineering technology, and in particular, it is a thin-walled concrete slope protection structure for ship lock flow open channel. Background Technology

[0002] A lock channel is an open channel used in lock engineering to connect different water level sections. Its main function is to ensure that ships can smoothly transition from one water level to another, while providing a controllable path for water flow to maintain the water level difference between upstream and downstream. The design of the lock channel must consider factors such as water flow velocity, flow rate, and scouring force on the slopes to ensure navigation safety and structural stability. As a key facility connecting waterways at different water levels, the slope protection of the lock channel section is particularly important.

[0003] Traditional slope protection measures for open channels in ship locks typically employ single materials or simple structures for reinforcement, such as concrete pouring or stone stacking. However, with rising standards in water conservancy engineering and increased environmental awareness, traditional slope protection methods are showing their shortcomings. For example, the lack of a support and tensioning structure leads to insufficient overall structural stability, making the slope prone to slippage, displacement, or even complete collapse under water erosion or changes in geological conditions. Furthermore, under long-term water erosion or concentrated drainage during the rainy season, the slope protection structure is highly susceptible to cracking that gradually expands, ultimately triggering localized or overall landslides. Utility Model Content

[0004] The purpose of this utility model is to provide a thin-walled concrete slope protection structure for a ship lock flow channel, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thin-walled concrete slope protection structure for a ship lock flow channel, comprising:

[0006] The open channel was excavated at the construction site.

[0007] The concrete wall cofferdam slopes are symmetrically constructed on both sides of the open channel, and the open channel between the two concrete wall cofferdam slopes has an inverted trapezoidal structure.

[0008] The slope protection components include a concrete lower protection slope, a gravel slope, a concrete filling layer, a permeable crushed stone cushion layer, and a permeable concrete smoothing layer, which are fixed sequentially to the opposite sides of the two concrete wall cofferdam slopes.

[0009] The slope protection anti-slip and anti-fall component includes a slope protection steel mesh and a concrete slope protection plate that are fixed sequentially on the opposite sides of two concrete wall cofferdam slopes. Anti-slip blocking steel is fixed at the bottom end of the two concrete slope protection plates and on the inner bottom wall of the open channel. The anti-slip blocking steel supports and prevents the concrete slope protection plates from sliding down.

[0010] Among them, slope protection support piles are constructed longitudinally on the opposite sides of the two concrete wall cofferdam slopes, and each slope protection support pile is fastened and connected to the adjacent slope protection component through a triangular support tie rod group.

[0011] In this preferred embodiment, each of the concrete wall cofferdam slopes has longitudinally excavated holes for accommodating slope protection support piles, and a distance of at least m is reserved between the holes and the adjacent concrete lower protective slope.

[0012] In this preferred embodiment, each of the slope protection support piles includes a steel cage inserted into the hole, a gravel foundation pile filled at the bottom of the hole and buried at the bottom of the steel cage, and a pile foundation steel column longitudinally inserted to the middle of the top surface of the gravel foundation pile and located in the steel cage.

[0013] In this preferred embodiment, a concrete pile foundation is poured above the gravel foundation pile and located in the hole. The concrete pile foundation is wrapped around the steel column of the pile foundation and locked to the steel column of the pile foundation after solidification.

[0014] In this preferred embodiment, each hole has a transverse perforation excavated on the inner wall of the side near the concrete lower protective slope at the top. A fall arresting rod is inserted into the perforation. One end of the fall arresting rod is welded to the steel column of the pile foundation, and the other end extends through the gravel slope, the concrete filling layer, and the permeable crushed stone cushion layer.

[0015] In this preferred embodiment, each of the triangular support rod groups includes a horizontally arranged pull rod and an inclined support rod located above the pull rod.

[0016] In this preferred embodiment, one end of the pull rod and the inclined support rod cross each other and are inserted into the gravel foundation pile to solidify and lock together with the flowing concrete. The other end of the pull rod and the inclined support rod extend into the concrete lower protection slope, the gravel slope, the concrete filling pouring layer, and the permeable crushed stone cushion layer.

[0017] In this preferred embodiment, transverse drainage pipes are inserted through the upper and lower ends of the gravel slope, the concrete filling layer, the permeable crushed stone cushion layer, the permeable concrete smoothing layer, the slope protection steel mesh, and the concrete slope protection slab. One end of each transverse drainage pipe in the gravel slope is set as a flow guide end, and the other end of the transverse drainage pipe extends to the outside of the concrete slope protection slab.

[0018] In this preferred embodiment, each of the concrete slope protection slabs is bolted to a lifting ring at its top, and a lifting rope is fixed to the lifting ring. The end of the lifting rope away from the lifting ring is wrapped and fixed to the top of the pile foundation steel column.

[0019] In this preferred embodiment, the anti-slip blocking steel has an inverted L-shaped structure, such that the bottom end of the anti-slip blocking steel is inserted into the bottom of the open channel, and the top end of the anti-slip blocking steel supports and abuts against the bottom outer wall of the concrete slope protection slab.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0021] The thin-walled concrete slope protection structure of the lock's open channel utilizes a design where slope protection components are sequentially fixed to the opposite sides of the concrete cofferdam slope. This structure includes a lower concrete slope, a gravel slope, a concrete filling layer, a permeable gravel cushion layer, and a permeable concrete smoothing layer, forming a functional, multi-layered slope protection structure that progresses from the inside out. This structure ensures both the strength and rigidity of the slope protection, while also providing excellent drainage and filtration performance to prevent water accumulation and landslides. Furthermore, its smooth and aesthetically pleasing surface facilitates future maintenance, achieving a comprehensive effect of "support + drainage + maintenance."

[0022] By incorporating anti-slip and anti-fall components into the slope protection system, including the combined use of steel mesh and concrete slope protection slabs, and the installation of anti-slip blocking steel at the bottom, the slope protection slabs are less prone to slippage or detachment under their own weight or external loads, thus enhancing the anchorage of the surface structure. This design, through a dual mechanism of physical blocking and structural support, significantly improves the anti-slip performance of the slope protection structure and ensures safety during operation.

[0023] By longitudinally installing slope support piles on the outer side of the concrete wall cofferdam slope and securely connecting them to the slope protection structure via triangular bracing tie rods, a stress-bearing system linking deep support and surface structure is constructed. The geometric stability created by the triangular bracing tie rods allows the entire slope protection structure to effectively distribute loads from above and transfer them deep into the foundation, avoiding local stress concentration. This enhances the overall structure's resistance to overturning and shearing, achieving stable slope protection under complex geological conditions. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the concrete wall cofferdam slope of this utility model;

[0027] Figure 3 This is a schematic diagram of the slope protection steel mesh of this utility model;

[0028] Figure 4 This is a structural schematic diagram of the concrete slope protection slab of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] In the diagram: 1. Open channel; 2. Concrete wall cofferdam slope; 3. Concrete lower protective slope; 4. Gravel slope; 5. Anti-slip blocking steel; 6. Concrete filling layer; 7. Permeable gravel cushion layer; 8. Permeable concrete smoothing layer; 9. Horizontal drainage pipe; 10. Slope protection support pile; 11. Triangular support tie rod assembly; 12. Slope protection steel mesh; 13. Concrete slope protection slab; 14. Guide end; 15. Fall protection hoisting tie rod; 16. Lifting ring; 17. Hoisting rope; 18. Pile foundation steel column; 19. Gravel foundation pile; 20. Reinforcing cage; 21. Lower tie rod; 22. Inclined support tie rod; 23. Concrete poured pile foundation; 24. Reinforcing mesh; 25. Honeycomb perforated planting hole. Detailed Implementation

[0031] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0032] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0033] This embodiment provides, for example Figures 1 to 4 The thin-walled concrete slope protection structure for a lock flow channel shown includes:

[0034] The excavation of open channel 1 is underway at the construction site;

[0035] The concrete wall cofferdam slope 2 is symmetrically constructed on both sides of the open channel 1, and the open channel 1 between the two concrete wall cofferdam slopes 2 has an inverted trapezoidal structure.

[0036] The slope protection components include a concrete lower protection slope 3, a sand and gravel slope 4, a concrete filling pouring layer 6, a permeable crushed stone cushion layer 7, and a permeable concrete smoothing layer 8, which are fixed sequentially on opposite sides of the two concrete wall cofferdam slopes 2.

[0037] The slope protection anti-slip and anti-fall component includes a slope protection steel mesh 12 and a concrete slope protection plate 13 that are fixed sequentially on opposite sides of two concrete wall cofferdam slopes 2. The bottom ends of the two concrete slope protection plates 13 and the inner bottom walls of the open channel 1 are fixed with anti-slip blocking steel 5, which supports and prevents the concrete slope protection plates 13 from sliding down.

[0038] On the opposite sides of the two concrete wall cofferdam slopes 2, slope protection support piles 10 are constructed longitudinally. Each slope protection support pile 10 is fastened and connected to the adjacent slope protection component through a triangular support tie rod group 11.

[0039] In this embodiment, holes for accommodating slope support piles 10 are longitudinally excavated inside each concrete wall cofferdam slope 2, with a minimum distance of 2m reserved between the holes and the adjacent concrete lower protective slope 3. This design, which involves longitudinally excavating holes inside the concrete wall cofferdam slope 2 to accommodate the slope support piles 10 and maintaining a minimum 2m distance between them and the concrete lower protective slope 3, allows the slope support piles 10 to be constructed and bear load independently of the surface slope structure, avoiding the impact of construction disturbance on surface stability. Simultaneously, this reserved space provides operational leeway for the subsequent installation of components such as tie rods and drainage pipes, improving construction convenience and overall structural coordination, achieving the dual effect of enhancing deep anchoring capacity without damaging the surface structure.

[0040] In this embodiment, each slope protection support pile 10 includes a reinforcing cage 20 inserted into a hole, a gravel foundation pile 19 filled at the bottom of the hole and buried at the bottom of the reinforcing cage 20, and a pile foundation steel column 18 longitudinally inserted to the middle of the top surface of the gravel foundation pile 19 and located in the reinforcing cage 20. Through the design of the slope protection support pile 10, the structure not only has the bearing capacity of traditional cast-in-place piles, but also further enhances the vertical stiffness and pull-out resistance through the presence of the pile foundation steel column 18; in addition, the pile foundation steel column 18, as a key support point connecting the superstructure (such as triangular support tie rod group, hoisting rope), can also play an anchoring role in the tensioning of the surface structure such as the slope protection slab 13 and the permeable crushed stone cushion layer 7.

[0041] In this embodiment, a concrete pile foundation 23 is poured above the gravel foundation pile 19 and located in the hole. The concrete pile foundation 23 wraps around the pile foundation steel column 18 and locks the pile foundation steel column 18 after solidification. A portion of the concrete pile foundation 23 flows into the gaps of the gravel foundation pile 19, which not only fills and seals the gaps but also solidifies and locks the gaps, improving stability.

[0042] In this embodiment, a perforation is horizontally excavated on the inner wall of the upper part of each hole near the concrete lower protective slope 3. A fall arresting tie rod 15 is inserted into the perforation. One end of the fall arresting tie rod 15 is welded to the pile foundation steel column 18, and the other end extends through the gravel slope 4, the concrete filling layer 6, and the permeable crushed stone cushion layer 7. This allows the fall arresting tie rod 15 to support and tighten the permeable crushed stone cushion layer 7 under the fixed position of the pile foundation steel column 18, preventing the permeable crushed stone cushion layer 7 from slipping. Concrete is also filled into the gaps of the permeable crushed stone cushion layer 7.

[0043] In this embodiment, each triangular support rod group 11 includes a horizontally arranged pull rod 21 and an inclined support rod 22 located above the pull rod 21.

[0044] In this embodiment, one end of the pull rod 21 and the inclined support rod 22 cross each other and are inserted into the gravel foundation pile 19, where they solidify and lock together with the flowing concrete. The other ends of the pull rod 21 and the inclined support rod 22 extend into the concrete lower protective slope 3, the gravel slope 4, the concrete filling layer 6, and the permeable crushed stone cushion layer 7. Furthermore, the pull rod 21, the inclined support rod 22, and the permeable crushed stone cushion layer 7 form a triangular structure, improving the tensile stability.

[0045] In this embodiment, transverse drainage pipes 9 are inserted through the upper and lower ends of the gravel slope 4, the concrete filling layer 6, the permeable crushed stone cushion layer 7, the permeable concrete smoothing layer 8, the slope protection steel mesh 12, and the concrete slope protection slab 13. One end of each transverse drainage pipe 9 in the gravel slope 4 is set as a flow guide end 14, and the other end of the transverse drainage pipe 9 extends to the outside of the concrete slope protection slab 13 for water supply and drainage.

[0046] In this embodiment, each concrete slope protection slab 13 has a lifting ring 16 bolted to its top, and a lifting rope 17 is fixed to the lifting ring 16. The end of the lifting rope 17 away from the lifting ring 16 is wrapped and fixed to the top of the pile foundation steel column 18. This allows the lifting rope 17 to hold the concrete slope protection slab 13 and prevent it from slipping. The design of the lifting ring 16 and the lifting rope 17 working together, and the rope being wrapped and fixed to the top of the pile foundation steel column 18, allows the concrete slope protection slab 13 to obtain temporary but effective holding and fixing in the early stage of construction, avoiding displacement of the incompletely cured structure under gravity or external forces. After the structure is formed, the rope system can still function as an auxiliary anchoring device, enhancing the long-term stability of the slope protection slab and achieving the dual function of "construction assistance + structural reinforcement".

[0047] In this embodiment, the anti-slip blocking steel 5 has an inverted L-shaped structure, so that the bottom end of the anti-slip blocking steel 5 is inserted into the bottom of the open channel 1, and the top end of the anti-slip blocking steel 5 supports and abuts against the bottom outer wall of the concrete slope protection slab 13. The slope protection steel mesh 12 has steel mesh holes 24, and the concrete slope protection slab 13 has honeycomb hollow planting holes 25.

[0048] Working principle

[0049] The thin-walled concrete slope protection structure of the lock's open channel was constructed by excavating earthwork on-site according to the design drawings, forming an inverted trapezoidal cross-section open channel 1. This provides construction space for the subsequent slope protection structure, ensuring smooth water flow and enhancing the slope's shear resistance under the scouring force of the water flow through the inverted trapezoidal cross-section. Concrete wall cofferdam slopes 2 were symmetrically poured on both sides of the open channel 1, forming a stable slope support structure. This serves as the foundation of the entire slope protection structure, bearing the slope earth pressure and providing an attachment surface for subsequent structural layers. A lower concrete slope 3 was poured directly onto the surface of the concrete wall cofferdam slope 2 for initial sealing and protection. A gravel slope 4 was laid on top of the lower concrete slope 3, acting as a transition buffer and enhancing permeability. A concrete filling layer 6 was used for leveling and local reinforcement. A permeable gravel cushion layer 7 was laid on top, serving as a drainage and filtration layer. A permeable concrete smoothing layer 8 was the outermost finishing layer, maintaining a smooth and aesthetically pleasing appearance while retaining good permeability.

[0050] The slope protection steel mesh 12 is fixed to the surface of the slope protection layer to enhance the integrity of the surface layer. The concrete slope protection slab 13 covers the steel mesh to form a solid protective layer. The anti-slip blocking steel 5 is installed at the bottom of the concrete slope protection slab 13 in an L-shaped structure and inserted into the bottom plate of the open channel 1 to prevent the slope protection slab from sliding down. The slope protection support piles 10 are driven longitudinally in the holes or pile holes on the outside of the concrete wall cofferdam slope 2. The gravel foundation piles 19 are located at the bottom of the pile holes and play a role in drainage, pressure reduction and initial bearing. The steel cage 20 is inserted into the middle of the pile hole to provide skeleton support. The pile foundation steel column 18 is inserted in the center of the steel cage to enhance the vertical stiffness. The concrete pile foundation 23 is poured into the pile hole, wraps the steel column and solidifies and locks it. The deep support improves the overall anti-overturning and anti-slip capacity of the slope protection.

[0051] The anti-fall hoisting tie rod 15 is inserted horizontally into the pile hole near the top. One end is welded to the steel column 18 of the pile foundation, and the other end extends into the slope protection structure, such as into the permeable gravel cushion layer 7, to prevent the permeable gravel cushion layer 7 from sliding due to gravity or water flow. At the same time, the connection is strengthened by filling with concrete. The lower tie rod 21 and the inclined support tie rod 22 are arranged crosswise. One end is inserted into the sand and gravel foundation pile 19 and solidified with the concrete. The other end extends into the slope protection structure, forming a triangular tie system, which effectively distributes the load and improves the tensile and bending resistance of the slope protection structure. The horizontal drainage pipe 9 runs through the upper and lower layers of the slope protection structure, from the sand and gravel slope 4 to the outside of the concrete slope protection slab 13. The guide end 14 is set at the inner port of the drainage pipe to guide the seepage water out, which can promptly remove the water accumulated inside the slope protection structure and prevent excessive water pressure from causing landslides or structural damage.

[0052] The lifting ring 16 is installed on the top of the concrete slope protection slab 13. One end of the lifting rope 17 is fixed to the lifting ring, and the other end is wrapped and fixed to the top of the pile foundation steel column 18 to further hold the slope protection slab and prevent it from shifting due to its own weight or external force.

[0053] The steel mesh 24 is located in the gaps of the slope protection steel mesh 12, providing space for plant roots to grow. The honeycomb hollow planting holes 25 are prefabricated holes in the concrete slope protection slab 13, which facilitates vegetation planting, realizes the ecological greening function, promotes the ecological restoration of the slope protection area, and improves environmental adaptability.

[0054] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thin-walled concrete protection structure for the slope of a ship lock overflow channel, characterized in that, include: Open channel (1); Concrete wall cofferdam slopes (2) are symmetrically constructed on both sides of the open channel (1), and the open channel (1) between the two concrete wall cofferdam slopes (2) has an inverted trapezoidal structure. The slope protection components include a concrete lower protection slope (3), a gravel slope (4), a concrete filling pouring layer (6), a permeable crushed stone cushion layer (7), and a permeable concrete smoothing layer (8), which are fixed sequentially on opposite sides of two concrete wall cofferdam slopes (2). The slope protection anti-slip and anti-fall component includes a slope protection steel mesh (12) and a concrete slope protection plate (13) that are fixed sequentially on opposite sides of two concrete wall cofferdam slopes (2). The bottom ends of the two concrete slope protection plates (13) and the inner bottom walls of the open channel (1) are fixed with anti-slip blocking steel (5). The anti-slip blocking steel (5) supports and prevents the concrete slope protection plate (13) from sliding down. Among them, slope protection support piles (10) are constructed longitudinally on the opposite side of the two concrete wall cofferdam slopes (2), and each slope protection support pile (10) is fastened and connected to the adjacent slope protection component through a triangular support tie rod group (11).

2. The thin-wall concrete protection structure of the ship lock overflow bright channel according to claim 1, characterized in that: Each of the concrete wall cofferdam slopes (2) has longitudinally excavated holes for accommodating slope protection support piles (10), and the holes are reserved at least 2m away from the adjacent concrete lower protective slope (3).

3. The thin-wall concrete protection structure of the ship lock overflow bright channel according to claim 2, characterized in that: Each of the slope protection support piles (10) includes a steel cage (20) inserted into a hole, a gravel foundation pile (19) filled at the bottom of the hole and buried at the bottom of the steel cage (20), and a pile foundation steel column (18) inserted longitudinally to the middle of the top surface of the gravel foundation pile (19) and located in the steel cage (20).

4. The thin-wall concrete protection structure of the ship lock overflow bright channel according to claim 3, characterized in that: A concrete pile foundation (23) is poured above the gravel foundation pile (19) and located in the hole. The concrete pile foundation (23) is wrapped around the pile foundation steel column (18) and locked to the pile foundation steel column (18) after solidification.

5. The thin-walled concrete protection structure of the ship lock overflow channel according to claim 4, characterized in that: Each of the holes has a transverse perforation excavated on the inner wall of the side near the concrete lower protective slope (3) at the top. A fall arresting rod (15) is inserted into the perforation. One end of the fall arresting rod (15) is welded to the pile foundation steel column (18), and the other end extends through the gravel slope (4), the concrete filling layer (6), and the permeable crushed stone cushion layer (7).

6. A thin-walled concrete lining protection structure for a ship lock overflow channel according to claim 5, characterized in that: Each of the triangular support rod groups (11) includes a horizontally arranged pull rod (21) and an inclined support rod (22) located above the pull rod (21).

7. The thin-walled concrete protection structure of the ship lock overflow channel according to claim 6, characterized in that: One end of the pull rod (21) and the inclined support rod (22) crosses each other and is inserted into the gravel foundation pile (19) and solidifies and locks together with the flowing concrete. The other end of the pull rod (21) and the inclined support rod (22) extend into the concrete lower protection slope (3), the gravel slope (4), the concrete filling pouring layer (6), and the permeable crushed stone cushion layer (7).

8. The thin-walled concrete protection structure of the ship lock overflow channel according to claim 7, characterized in that: The upper and lower ends of the gravel slope (4), the concrete filling layer (6), the permeable crushed stone cushion layer (7), the permeable concrete smoothing layer (8), the slope protection steel mesh (12), and the concrete slope protection slab (13) are respectively connected by transverse drainage pipes (9). One end of each transverse drainage pipe (9) in the gravel slope (4) is set as a flow guide end (14), and the other end of the transverse drainage pipe (9) extends to the outside of the concrete slope protection slab (13).

9. The thin-walled concrete lining protection structure of a ship lock overflow channel according to claim 8, characterized in that: Each of the concrete slope protection slabs (13) has a lifting ring (16) bolted to its top, and a lifting rope (17) is fixed to the lifting ring (16). The end of the lifting rope (17) away from the lifting ring (16) is wrapped and fixed to the top of the pile foundation steel column (18).

10. The thin-walled concrete protection structure of the ship lock overflow channel according to claim 9, characterized in that: The anti-slip blocking steel (5) has an inverted L-shaped structure, so that the bottom end of the anti-slip blocking steel (5) is inserted into the bottom of the open channel (1), and the top end of the anti-slip blocking steel (5) supports and abuts against the bottom outer wall of the concrete slope protection plate (13).

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