Tailing pond dam body layered reinforcement construction structure

Abstract

The utility model relates to the technical field of tailing pond dam bodies, in particular to a tailing pond dam body layered reinforcement construction structure which comprises a tailing pond dam body, the tailing pond dam body comprises a protection slope, a groove is formed in the slope side of the protection slope, a filling water guide piece is filled in the groove, and a permeation drainage part is arranged at the bottom of the inner side of the groove. A first reinforcing slope is arranged on one side of the permeation drainage part, a second reinforcing slope is arranged on one side of the first reinforcing slope, a plurality of reinforcing ribs are arranged between the second reinforcing slope and the first reinforcing slope, the reinforcing ribs are arranged in a step shape, and an ecological protection part is arranged on one side of the second reinforcing slope. Comprising a first reinforcing slope, a second reinforcing slope and reinforcing ribs arranged in a stepped mode, the anti-sliding and anti-settling capacity of the dam body is effectively enhanced, dam body deformation caused by seepage or external loads is prevented, the drainage path is optimized through the combined structure of the groove and the filling water guiding piece, the pore water pressure in the dam body is reduced, and the seepage damage risk is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of tailings dam bodies, and in particular to a layered reinforcement construction structure for tailings dam bodies. Background Technology

[0002] Tailings dams are sites where tailings accumulate during mining operations, and the stability of these dams is directly related to mine safety and environmental protection.

[0003] Traditional tailings dam reinforcement methods often employ single engineering measures, such as increasing height, widening, and reinforcing, but these methods often neglect the importance of ecological restoration, leading to ecological degradation after dam reinforcement and difficulty in quickly lowering the phreatic line through the drainage system, resulting in a sharp decline in dam stability. To address this, we propose a layered reinforcement construction structure for tailings dams. Utility Model Content

[0004] This utility model is a layered reinforcement construction structure for tailings dams proposed to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A layered reinforcement construction structure for a tailings dam includes a tailings dam body, the tailings dam body including a slope protection, a groove provided on the sloping side of the slope protection, the groove being filled with a water-guiding component, a permeable drainage section provided at the bottom of the inner side of the groove, a first reinforcement slope provided on one side of the permeable drainage section, a second reinforcement slope provided on one side of the first reinforcement slope, a plurality of reinforcing ribs provided between the second reinforcement slope and the first reinforcement slope, the plurality of reinforcing ribs being arranged in a stepped manner, and an ecological protection section provided on one side of the second reinforcement slope.

[0007] Through the above technical solution, grooves are set on the slope side of the tailings dam body, and water guides are filled in the grooves. In conjunction with the seepage drainage section, the seepage water inside the dam body is effectively drained. The reinforced slope one and reinforced slope two enhance the overall stability through the stepped arrangement of reinforcing ribs, while the ecological protection section provides vegetation protection to reduce soil erosion.

[0008] The layered reinforcement design improves the overall anti-sliding and anti-settlement capacity of the dam body. The grooves and water guides enhance drainage efficiency, reduce water pressure inside the dam body, and prevent seepage damage. The stepped reinforcement distribution optimizes stress transmission and improves structural strength. The ecological protection section combines vegetation to stabilize the soil, reduce slope erosion, and improve environmental friendliness.

[0009] Preferably, the reinforcing ribs are arranged in a serrated structure and are made of polyester fiber components.

[0010] Through the above technical solution, the reinforcing ribs are made of serrated polyester fiber components. Their special structure enhances the frictional interlocking effect with the soil, forming a stable reinforced soil structure. The serrated structure increases the frictional resistance of the contact surface, prevents the reinforcement from slipping, and improves the tensile strength. Polyester fiber is corrosion-resistant and anti-aging, adaptable to long-term buried environments, and extends service life.

[0011] Preferably, the permeation drainage section includes vertical drainage holes and horizontal drainage holes, which are arranged in an intersecting structure, and drainage components are provided inside the vertical drainage holes and horizontal drainage holes.

[0012] Through the above technical solution, the vertical drainage holes and the horizontal drainage holes are arranged to intersect, forming a three-dimensional drainage network through the drainage components, which guides the seepage water to be discharged in a directional manner. The cross-channel design improves drainage efficiency and avoids local water accumulation. The vertical drainage holes accelerate the discharge of deep seepage water, and the horizontal drainage holes realize the diversion of slope runoff, which together reduce the pore water pressure of the dam body.

[0013] Preferably, the drainage assembly includes a vertical drain pipe and a horizontal drain pipe, wherein the vertical drain pipe is disposed in a vertical drain hole and the horizontal drain pipe is disposed in a horizontal drain hole, and the horizontal drain pipe is disposed in a left-high-right-low configuration.

[0014] Through the above technical solution, vertical and horizontal drainage pipes are embedded in corresponding channels. The horizontal drainage pipes are set with the left side higher than the right side to form gravity drainage. The micro-permeable holes filter mud and sand. The inclined horizontal drainage pipes utilize gravity to flow, reducing the risk of siltation. The micro-permeable holes prevent soil particles from entering the pipes and maintain smooth drainage in the long term.

[0015] Preferably, the vertical drainage pipe is filled with graded crushed stone, and the horizontal drainage pipe has several micro-permeable holes on the side opposite to the vertical drainage pipe.

[0016] Through the above technical solution, the vertical drainage pipe is filled with graded crushed stone to enhance permeability, and the permeable holes of the horizontal drainage pipe realize water seepage filtration. The graded crushed stone improves the vertical infiltration efficiency, disperses the water flow impact, and the permeable holes selectively allow water to pass through, avoiding pipe blockage and reducing maintenance costs.

[0017] Preferably, the ecological protection section includes an ecological protection slope, and a number of planting troughs are provided on one side of the ecological protection slope, with ecological plant planting components installed in the planting troughs.

[0018] Through the above technical solutions, the ecological protection slope uses planting troughs to fix ecological plant planting components, the plant roots stabilize the soil, the protective permeable frame takes into account both water permeability and structural protection, the vegetation restores the slope ecology, reduces soil erosion, improves the landscape, and the modular design of the planting troughs facilitates construction and maintenance and adapts to the growth needs of different plants.

[0019] Preferably, the ecological plant planting component includes a protective permeable frame and several partition filter plates. The protective permeable frame is disposed in the planting trough, and the several partition filter plates are slidably connected in the protective permeable frame.

[0020] Through the above technical solutions, the protective permeable frame provides planting space, the sliding partition filter plate adjusts soil stratification, enhances water permeability and root stability, the partition filter plate prevents soil loss, and optimizes water distribution. The sliding design makes it easy to adjust the planting structure to adapt to different vegetation growth conditions.

[0021] In summary, this utility model adopts a layered reinforcement design, including a first reinforcement slope, a second reinforcement slope, and stepped reinforcing ribs, which effectively enhances the dam's resistance to sliding and settlement, prevents dam deformation caused by seepage or external loads, and optimizes the drainage path by combining the groove with the filling water guide, reducing the pore water pressure inside the dam and lowering the risk of seepage damage.

[0022] This utility model uses serrated polyester fiber components for reinforcing ribs, which enhances the reinforcement effect. The serrated structure increases the frictional resistance with the soil, prevents the ribs from slipping, and improves the overall tensile strength. Polyester fibers are corrosion-resistant and anti-aging, adaptable to long-term buried environments, extend service life, and reduce maintenance costs.

[0023] In this invention, the seepage drainage section adopts a cross arrangement of vertical and horizontal drainage holes to improve drainage efficiency. The vertical drainage holes accelerate the discharge of deep seepage water, while the horizontal drainage holes guide the slope runoff, forming a three-dimensional drainage network to avoid local water accumulation. The vertical and horizontal drainage pipes of the drainage component work together to ensure rapid discharge of seepage water, lower the phreatic line of the dam body, and improve stability.

[0024] This utility model, through the synergistic design of layered reinforcement, efficient drainage and ecological protection, significantly improves the stability, durability and environmental adaptability of tailings dam bodies, and is suitable for dam body treatment projects under complex geological conditions. Attached Figure Description

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

[0026] Figure 2 This is a schematic diagram of the tailings dam body of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the ecological plant planting component of this utility model;

[0028] Figure 4 This is a schematic diagram of the drainage component of this utility model;

[0029] Figure 5 This is a schematic diagram of the front axial side of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the present invention with a frontal cross-section of the axial side.

[0031] In the diagram: 1. Tailings dam body; 11. Slope protection; 12. Groove; 13. Vertical drainage hole; 14. Horizontal drainage hole; 2. Filling water guide component; 3. Reinforced slope one; 4. Reinforced slope two; 5. Reinforcing rib; 6. Ecological protection slope; 7. Ecological plant planting component; 71. Protective permeable frame; 72. Partition filter plate; 8. Drainage component; 81. Vertical drainage pipe; 82. Horizontal drainage pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] like Figures 1-6 As shown, a layered reinforcement construction structure for a tailings dam body is described. First, the existing tailings dam body 1 is sloped to ensure that the slope 11 is flat. Then, grooves 12 are excavated on the slope side of the slope 11 at the designed intervals. The depth and width of the grooves 12 are determined according to the dam height and drainage requirements, generally 30-50cm deep and 20-30cm wide. The grooves 12 are distributed longitudinally or in a mesh pattern along the slope to enhance the water guiding effect.

[0034] The water-conducting component 2 is installed in the groove 12. A permeable geotextile is laid as the bottom layer, and then well permeable crushed stone or gravel is filled as the water-conducting component 2. The filling height is flush with the groove 12. The particle size of the water-conducting component 2 should be reasonably graded to ensure permeability and prevent fine particles from clogging it.

[0035] Vertical drainage holes 13 and horizontal drainage holes 14 are drilled at the bottom of the inner side of the groove 12, arranged in a cross shape. The depth of the vertical drainage holes 13 should penetrate the potential slip surface. The horizontal drainage holes 14 are set with a slope of 5°-10°, higher on the left and lower on the right, to facilitate gravity drainage. A vertical drainage pipe 81 is installed in the vertical drainage hole 13. The pipe material is high-density polyethylene (HDPE) perforated pipe, and the outside is wrapped with permeable geotextile to prevent clogging. The vertical drainage pipe 81 is filled with graded crushed stone with a particle size of 10-30mm to enhance permeability. The horizontal drainage pipe 82 is a perforated pipe of the same material. On the side where it connects to the vertical drainage pipe 81, a micro-permeable hole with a diameter of 2-5mm is opened, and the other side is closed to guide the water flow to drain in one direction.

[0036] On the outside of the seepage drainage section, reinforced slope 1 (3) and reinforced slope 2 (4) are filled in layers. The reinforced slope material can be compacted tailings sand or clay. The compaction thickness of each layer should not exceed 30cm and the compaction degree should be ≥95%. Reinforcing ribs 5 are arranged in a stepped manner between the two reinforced slopes. The reinforcing ribs 5 are sawtooth polyester fiber reinforcing strips with a horizontal spacing of 50-100cm and a vertical spacing of 30-50cm. When laying, they need to be tensioned and anchored inside the slope, with the sawtooth surface facing upward to enhance the friction and interlocking with the soil.

[0037] On the outer side of reinforced slope 24, construct ecological protection slope 6. Level the slope surface at a gradient of 1:2-1:3. Excavate planting trenches on the slope surface and install precast concrete or plastic protective permeable frames 71 in the trenches. Fill the protective permeable frames 71 with planting soil in layers, each layer being 20-30cm thick. Insert sliding partition filter plates 72 between the layers. The filter plates are porous plastic plates with a pore diameter of 1-2cm, used to separate soil layers and maintain permeability. Finally, plant drought-resistant herbaceous or shrubby plants with well-developed root systems, such as bermudagrass and purple locust, on the surface.

[0038] It should be noted that a water flow test must be conducted after the drainage pipe is installed to ensure smooth drainage;

[0039] Tension testing is required when laying reinforcing rib 5 to prevent slack.

[0040] A temporary sprinkler irrigation system needs to be set up in the early stage of planting ecological plants to ensure the survival rate.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A layered reinforcement construction structure for tailings dam bodies, characterized in that, The tailings dam includes a tailings dam body (1), which includes a slope protection (11). A groove (12) is provided on the inclined side of the slope protection (11). A water-conducting component (2) is filled in the groove (12). A permeable drainage section is provided at the bottom of the inner side of the groove (12). A reinforced slope one (3) is provided on one side of the permeable drainage section. A reinforced slope two (4) is provided on one side of the reinforced slope one (3). Several reinforcing ribs (5) are provided between the reinforced slope two (4) and the reinforced slope one (3). The several reinforcing ribs (5) are arranged in a stepped manner. An ecological protection section is provided on one side of the reinforced slope two (4).

2. The layered reinforcement construction structure for tailings dam body according to claim 1, characterized in that, The reinforcing rib (5) is provided with a serrated structure and is made of polyester fiber.

3. The layered reinforcement construction structure for tailings dam body according to claim 1, characterized in that, The permeation drainage section includes a vertical drainage hole (13) and a horizontal drainage hole (14). The vertical drainage hole (13) and the horizontal drainage hole (14) are arranged in an intersecting structure. A drainage component (8) is provided in the vertical drainage hole (13) and the horizontal drainage hole (14).

4. The layered reinforcement construction structure for tailings dam body according to claim 3, characterized in that, The drainage component (8) includes a vertical drain pipe (81) and a horizontal drain pipe (82). The vertical drain pipe (81) is located inside the vertical drain hole (13), and the horizontal drain pipe (82) is located in the horizontal drain hole (14). The horizontal drain pipe (82) is arranged with the left side higher than the right side.

5. The layered reinforcement construction structure for tailings dam body according to claim 4, characterized in that, The vertical drainage pipe (81) is filled with graded crushed stone, and the horizontal drainage pipe (82) has several micro-permeable holes on the side opposite to the vertical drainage pipe (81).

6. The layered reinforcement construction structure for tailings dam body according to claim 1, characterized in that, The ecological protection section includes an ecological protection slope (6), and a number of planting troughs are provided on one side of the ecological protection slope (6), and ecological plant planting components (7) are provided in the planting troughs.

7. A layered reinforcement construction structure for tailings dam bodies according to claim 6, characterized in that, The ecological plant planting component (7) includes a protective permeable frame (71) and several partition filter plates (72). The protective permeable frame (71) is set in the planting trough, and several partition filter plates (72) are slidably connected in the protective permeable frame (71).

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