Wear-resistant ecological prefabricated dam body structure

Abstract

The utility model discloses a kind of wear-resistant ecological precast dam body structures, including dam body, the dam body is formed by the sequential splicing of multiple prefabricated dam body monomers, wear-resistant layer is formed in the top of each dam body monomer, ecological brick is laid in the backwater side of each dam body monomer, and the backwater side of the dam body monomer is ladder-shaped after laying ecological brick. With simple construction, easy and fast implementation, low cost and the like, at the same time, the wear-resistant layer is arranged on the top surface of the dam body, so that the wear-resistant effect of the dam body is good, and the dam body has a long service life. It is very suitable for use on the pebble sand transport belt of river in the upper reaches of Yangtze River.

Description

Technical Field

[0001] This utility model relates to the field of waterway regulation technology, specifically designing a wear-resistant and ecological prefabricated dam structure. Background Technology

[0002] Channel regulation engineering refers to the construction of specialized structures or other engineering measures in the riverbed to adjust the riverbed morphology and water and sediment flow paths, creating a favorable flow structure. This utilizes the force of the water flow itself to scour the channel and maintain its stability, ensuring necessary navigational dimensions during the dry season. Channel regulation structures are hydraulic structures built to stabilize or improve river morphology and adjust water flow. The purpose of channel regulation is to use these structures to adjust the relationship between water flow and the riverbed, locally altering the riverbed's evolutionary process, thereby regulating scouring and sedimentation. This ensures that scouring occurs where it is needed, sediment is deposited where it is intended, and the riverbed remains relatively stable. Channel regulation structures include groynes, longitudinal dikes, groynes and longitudinal dikes, submerged dikes, and locking dikes, among others.

[0003] In existing technologies, cast-in-place concrete is commonly used to construct dams. However, this method requires extremely high water levels and a long exposure time for the dam structure. Currently, in the fluctuating backwater areas of the upper Yangtze River, the exposure time of the construction water level is short or nonexistent, making it difficult to complete cast-in-place dam construction. Furthermore, when the existing cast-in-place dam surface is submerged, it is easily impacted by sand and gravel carried in the river, leading to rapid wear and a shortened dam lifespan. Utility Model Content

[0004] This utility model provides a wear-resistant ecological precast dam structure, which can effectively alleviate the technical problems in the prior art that the dam casting requires a long exposure time, leading to difficulties in dam casting construction and rapid wear of the dam surface.

[0005] A wear-resistant ecological prefabricated dam structure includes a dam body, which is composed of multiple prefabricated dam body units spliced ​​together sequentially. A wear-resistant layer is formed on the top of each dam body unit, and ecological bricks are laid on the backwater side of each dam body unit, forming a stepped shape after the ecological bricks are laid on the backwater side of the dam body unit.

[0006] Based on the above structure, the dam body is assembled from prefabricated dam units. This overcomes the shortcomings of cast-in-place concrete, which requires excessively high construction water levels and a long exposure time for the dam body. Construction is simple, convenient, quick, and cost-effective. Furthermore, a wear-resistant layer is formed at the top of each dam unit, resulting in excellent wear resistance and greater tolerance to the impact of sand and gravel carried in the river, effectively extending the dam's service life. In addition, the downstream side of each dam unit, after being paved with eco-bricks, forms stepped energy-dissipating steps, which can dissipate the force of the river flow, reducing the impact of the river water on the dam body and further extending its service life.

[0007] Furthermore, the wear-resistant layer adopts a block stone concrete structure, with several pebbles arranged at intervals embedded and fixed inside, and the pebbles protruding 1-3cm from the surface of the dam.

[0008] When the dam is submerged, the sand and gravel in the river water abrade the dam surface, first contacting and colliding with the exposed pebbles. The pebbles, being hard and smooth, effectively prevent the river water and sand from directly contacting the concrete dam surface and reduce friction, thus providing excellent protection. This significantly improves the wear resistance of the dam's top surface and extends the dam's service life.

[0009] Furthermore, a groove with an inverted T-shaped cross-section is formed on the top of the dam body unit, and the wear-resistant layer is cast into the groove.

[0010] The inverted T-shaped grooves allow for a tighter bond between the wear-resistant layer and the dam body, effectively improving the impact resistance of the wear-resistant layer and helping to further extend the service life of the dam.

[0011] Furthermore, the depth of the groove is 1 / 6 to 1 / 4 of the height of the dam body unit.

[0012] Furthermore, a limiting groove is formed on one side of the dam body unit, and a limiting block is formed on the other side of the dam body unit. When two adjacent dam body units are spliced ​​together, the limiting block is inserted into the limiting groove.

[0013] Furthermore, the ecological brick includes a brick body, a through hole in the middle of the brick body, and a biofilm is bonded to the side wall of the through hole by an adhesive layer, the biofilm being applied to the entire side wall of the through hole.

[0014] The biofilm attached inside the pores can adsorb organisms and sediments, improve the survival ability of fungi, and promote their reproduction and growth, thereby forming a fish nest that can provide a hidden shelter for fish to breed, forage, rest, and avoid predators. Thus, when the dam is submerged, it can create and rebuild a fish habitat in the underwater shelter area.

[0015] Furthermore, a limiting hole is formed on the upper surface of the brick, and a limiting post adapted to the limiting hole is formed on the lower surface of the brick. Both the limiting hole and the limiting post are located on the same side of the through hole.

[0016] Furthermore, a limiting member is formed on one side of the brick body, and a limiting notch adapted to the limiting member is formed on the other side of the brick body. The limiting member and the limiting notch are respectively located on two opposite sides of the through hole.

[0017] Furthermore, both the dam body and the ecological bricks are made of concrete. Beneficial effects

[0018] 1. The dam structure is formed by splicing prefabricated dam body units, which has the advantages of simple construction, convenient and quick implementation, and low cost. At the same time, a wear-resistant layer is set on the top surface of the dam body, which makes the dam body have good wear resistance and long service life. It is very suitable for use in the gravel transport belt of the mountainous rivers in the upper reaches of the Yangtze River.

[0019] 2. The downstream side of the dam body is paved with ecological bricks to form stepped energy dissipation steps, which can dissipate the force of the river flow and reduce the impact of the river water on the dam body, thereby further extending the service life of the dam body.

[0020] 3. Biofilm attached to the through holes of the ecological bricks can adsorb organisms and sediments, improve the survival ability of fungi, and promote their reproduction and growth, thereby forming fish nests that can provide a hiding place for fish to breed, forage, rest, and avoid predators. Thus, when the dam is submerged, a fish habitat can be rebuilt in the underwater shelter area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of a single dam body as described in Example 1; Figure 3 This is a right view of the dam unit described in Example 1; Figure 4 This is a structural schematic diagram of the eco-brick described in Example 1 from one perspective; Figure 5 This is a structural schematic diagram of the eco-brick described in Example 1 from another perspective; Figure 6 This is a schematic diagram of the structure of a single dam body as described in Example 2; Figure 7 This is a right view of the dam body unit described in Example 2; Figure 8 This is a structural schematic diagram of the eco-brick described in Example 2 from one perspective; Figure 9 This is a structural schematic diagram of the eco-brick described in Example 2 from another perspective. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings. Example

[0023] like Figures 1-5 As shown, this embodiment proposes a wear-resistant ecological prefabricated dam structure. The dam structure is assembled from prefabricated dam head 30, dam body 10 and dam root 40. The dam body 10 is assembled from multiple prefabricated dam body units 11 in sequence. A wear-resistant layer 12 is formed on the top of each dam body unit 11. Ecological bricks 20 are laid on the backwater side of each dam body unit 11, and the ecological bricks 20 laid on the backwater side of the dam body unit 11 form a stepped shape.

[0024] Based on the above structure, the dam structure is assembled from prefabricated dam head 30, dam body 10, and dam root 40. The dam body 10 is constructed by sequentially splicing multiple prefabricated dam body units 11. This overcomes the shortcomings of cast-in-place concrete, which requires excessively high construction water levels and a long dam exposure time for pouring. Construction is simple, convenient, quick, and cost-effective. Simultaneously, a wear-resistant layer 12 is formed at the top of the dam body unit 11, improving the wear resistance of the dam body 10 and making it more resistant to the impact of sand and gravel in the river water, effectively extending the service life of the dam. Furthermore, the downstream side of the dam body unit 11 is paved with ecological bricks 20, forming stepped energy-dissipating steps that can dissipate the force of the river flow, reducing the impact of the river water on the dam and further extending the service life of the dam.

[0025] Preferably, the wear-resistant layer 12 adopts a block stone concrete structure, with a number of pebbles arranged at intervals embedded and fixed inside, and the pebbles are exposed 1-3cm above the dam surface.

[0026] When the dam is submerged, the sand and gravel in the river water abrade the dam surface, first contacting and colliding with the exposed pebbles. The pebbles, being hard and smooth, effectively prevent the river water and sand from directly contacting the concrete dam surface and reduce friction, thus providing excellent protection. This significantly improves the wear resistance of the dam's top surface and extends the dam's service life.

[0027] See appendix Figure 3 A groove with an inverted T-shaped cross-section is formed on the top of the dam body unit 11, and the wear-resistant layer 12 is cast into the groove.

[0028] The inverted T-shaped grooves described above allow for a tighter bond between the wear-resistant layer 12 and the dam body unit 11, effectively improving the impact resistance of the wear-resistant layer and helping to further extend the service life of the dam. Of course, other groove structures can also be used during implementation to enhance the bond strength between the wear-resistant layer 12 and the dam body unit 11.

[0029] To ensure that the wear-resistant layer 12 and the dam body 11 have sufficient pull-out resistance, the depth of the groove is 1 / 6 to 1 / 4 of the height of the dam body 11, that is, the thickness of the wear-resistant layer 12 is 1 / 6 to 1 / 4 of the height of the dam body 11. The specific value is determined according to parameters such as the flow velocity and sediment content of the river where the dam structure is located.

[0030] See appendix Figure 2 and attached Figure 3 A limiting groove 13 is formed on one side of the dam body unit 11, and a limiting block 14 is formed on the other side of the dam body unit 11. When two adjacent dam body units 11 are spliced ​​together, the limiting block 14 is inserted into the limiting groove 13.

[0031] Specifically, the limiting groove 13 is located in the middle left side of the dam body unit 11, and the limiting block 14 is located in the corresponding position in the middle right side of the dam body unit 11. Thus, when two adjacent dam body units 11 are spliced ​​together, the limiting block 14 is inserted into the limiting groove 13. The splicing and assembly of the two dam body units 11 is achieved by the cooperation of the limiting block 14 and the limiting groove 13, and impact resistance is provided between the two adjacent dam body units 11 to ensure that the dam structure has sufficient impact resistance.

[0032] See appendix Figure 3 Each dam body unit 11 is also fixed with a hoisting component 15 on top, which facilitates the hoisting, transportation and splicing of the dam body unit 11.

[0033] Of course, the dam body 10 and the dam head 30, and the dam body 10 and the dam root 40 can also be spliced ​​by inserting the limiting block 14 into the limiting groove 13.

[0034] See appendix Figure 4 and attached Figure 5 The ecological brick 20 includes a brick body 21, a through hole 22 is provided in the middle of the brick body 21, and a biofilm 23 is bonded to the side wall of the through hole 22 by an adhesive layer, and the biofilm 23 is applied to the entire side wall of the through hole 22.

[0035] In this embodiment, the biofilm 23 attached to the through hole 22 can adsorb organisms and sediments, improve the survival ability of fungi, and promote their reproduction and growth, thereby forming a fish nest that can provide a hidden shelter for fish to reproduce, forage, rest, and avoid predators. Thus, when the dam is submerged, a fish habitat can be reconstructed in the underwater shelter area.

[0036] To ensure that the ecological bricks 20 have sufficient erosion resistance after being laid on the backwater side of the dam body 10, a limiting hole 24 is formed on the upper surface of the brick body 21, and a limiting post 25 adapted to the limiting hole 24 is formed on the lower surface of the brick body 21. The limiting hole 24 and the limiting post 25 are both located on the same side of the through hole 22. Thus, the limiting post 25 of the upper ecological brick 20 is inserted into the limiting hole 14 of the lower ecological brick 20, so that two adjacent ecological bricks on the upper and lower steps are fixed in the vertical direction, making the bond between the two adjacent ecological bricks more secure.

[0037] Specifically, the limiting hole 24 is located on the upper surface to the left of the through hole 22, and the limiting post 25 is located on the lower surface to the left of the through hole 22. The line connecting the limiting hole 24 and the limiting post 25 is perpendicular to the setting direction of the through hole 22.

[0038] Preferably, the dam body 10, the ecological brick 20, the dam head 30, and the dam root 40 are all made of concrete. Example

[0039] like Figure 1 , Figures 6-9 As shown, the wear-resistant ecological prefabricated dam structure described in this embodiment differs from that in Embodiment 1 in that: The limiting groove 13 is located at the bottom left side of the dam body unit 11, and the limiting block 14 is located at the corresponding position at the bottom right side of the dam body unit 11. Thus, when two adjacent dam body units 11 are spliced ​​together, the limiting block 14 is inserted into the limiting groove 13. The splicing and assembly of the two dam body units 11 is achieved by the cooperation of the limiting block 14 and the limiting groove 13, and impact resistance is provided between the two adjacent dam body units 11 to ensure that the dam structure has sufficient impact resistance.

[0040] In addition, a limiting member 26 is formed on one side of the brick body 21, and a limiting notch 27 adapted to the limiting member 26 is formed on the other side of the brick body 21. The limiting member 26 and the limiting notch 27 are respectively located on two opposite sides of the through hole 22. Specifically, the limiting notch 27 is located on the front side below the through hole 22, and the limiting member 26 is located on the rear side below the through hole 22. Thus, by inserting the limiting member 26 of the left ecological brick 20 into the limiting notch 27 of the right ecological brick 20, a left-right fixation is formed between the two adjacent ecological bricks, making the connection between the two adjacent ecological bricks more secure.

[0041] In another embodiment, a limiting hole 24 is formed on the upper surface of the brick body 21, and a limiting post 25 adapted to the limiting hole 24 is formed on the lower surface of the brick body 21. The limiting hole 24 and the limiting post 25 are both located on the same side of the through hole 22. A limiting member 26 is formed on one side of the brick body 21, and a limiting notch 27 adapted to the limiting member 26 is formed on the other side of the brick body 21. The limiting member 26 and the limiting notch 27 are respectively provided on two opposite sides of the through hole 22. Specifically: The limiting hole 24 is located on the upper surface to the left of the through hole 22, and the limiting post 25 is located on the lower surface to the left of the through hole 22. The line connecting the limiting hole 24 and the limiting post 25 is perpendicular to the setting direction of the through hole 22. The limiting notch 27 is located on the front side below the through hole 22, and the limiting member 26 is located on the rear side below the through hole 22. Thus, the limiting post 25 of the upper ecological brick 20 is inserted into the limiting hole 14 of the lower ecological brick 20, so that the two adjacent ecological bricks on the upper and lower steps are fixed in the vertical and horizontal directions, making the connection between the two adjacent ecological bricks more reliable.

[0042] The working principle of this utility model is as follows: First, according to the design requirements, the dam head 30 and dam root 40 are prefabricated by concrete pouring. Then, by prefabricating a dam body unit 11 with a wear-resistant layer 12, a limiting groove 13, and a limiting block 14, and by inserting the limiting block 14 on one dam body unit 11 into the limiting groove 11 on another dam body unit 11, the dam body unit 11 is spliced ​​and assembled to obtain the dam body 10 required by the design. Subsequently, the dam body 10, dam head 30 and dam root 40 are assembled by splicing dam body units 11 to form the dam structure; Finally, ecological bricks 20 are laid on the backwater side of the dam structure, resulting in a stepped appearance on the backwater side of the entire dam structure. When laying the ecological bricks 20, they can be laid layer by layer by inserting the limiting post 25 of the upper ecological brick 20 into the limiting hole 14 of the lower ecological brick 20; alternatively, the limiting piece 26 of the left ecological brick 20 can be inserted into the limiting notch 27 of the right ecological brick 20 to lay the bottom layer first, and then lay ecological bricks 20 layer by layer on the bottom layer and the backwater side of the dam structure until the wear-resistant ecological prefabricated dam structure is obtained.

[0043] It should be noted that when laying the ecological bricks 20, the limiting post 25 of the upper ecological brick 20 can be inserted into the limiting hole 14 of the lower ecological brick 20, and the limiting piece 26 of the left ecological brick 20 can be inserted into the limiting notch 27 of the right ecological brick 20. This combination forms a fixed connection between the ecological bricks 20 in the vertical and horizontal directions, further improving the bonding strength between adjacent ecological bricks 20, thereby enhancing the scour resistance after laying the ecological bricks 20 and extending the service life of the dam structure.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A wear-resistant, eco-friendly precast dam structure, comprising a dam body (10), characterized in that, The dam body (10) is formed by splicing multiple prefabricated dam body units (11) in sequence. A wear-resistant layer (12) is formed on the top of each dam body unit (11). Ecological bricks (20) are laid on the back side of each dam body unit (11), and the back side of the dam body unit (11) is stepped after the ecological bricks (20) are laid.

2. The wear-resistant ecological prefabricated dam structure according to claim 1, characterized in that, The wear-resistant layer (12) adopts a block stone concrete structure, with several pebbles arranged at intervals embedded in it, and the pebbles are exposed 1-3cm above the surface of the dam.

3. The wear-resistant ecological prefabricated dam structure according to claim 2, characterized in that, A groove with an inverted T-shaped cross-section is formed on the top of the dam body unit (11), and the wear-resistant layer (12) is cast into the groove.

4. The wear-resistant ecological precast dam structure according to claim 3, characterized in that, The depth of the groove is 1 / 6 to 1 / 4 of the height of the dam body unit (11).

5. The wear-resistant ecological prefabricated dam structure according to claim 1, characterized in that, A limiting groove (13) is formed on one side of the dam body unit (11), and a limiting block (14) is formed on the other side of the dam body unit (11). When two adjacent dam body units (11) are spliced ​​together, the limiting block (14) is inserted into the limiting groove (13).

6. The wear-resistant ecological precast dam structure according to any one of claims 1-5, characterized in that, The ecological brick (20) includes a brick body (21), a through hole (22) is provided in the middle of the brick body (21), and a biofilm (23) is bonded to the side wall of the through hole (22) by an adhesive layer. The biofilm (23) is laid on the entire side wall of the through hole (22).

7. The wear-resistant ecological precast dam structure according to claim 6, characterized in that, A limiting hole (24) is formed on the upper surface of the brick body (21), and a limiting post (25) adapted to the limiting hole (24) is formed on the lower surface of the brick body (21). The limiting hole (24) and the limiting post (25) are both located on the same side of the through hole (22).

8. The wear-resistant ecological precast dam structure according to claim 6, characterized in that, A limiting member (26) is formed on one side of the brick body (21), and a limiting notch (27) adapted to the limiting member (26) is formed on the other side of the brick body (21). The limiting member (26) and the limiting notch (27) are respectively located on two opposite sides of the through hole (22).

9. The wear-resistant ecological precast dam structure according to any one of claims 1-5, characterized in that, The dam body (10) and the ecological bricks (20) are both made of concrete.

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