Duplex structure of tailing pond closed drainage open channel and inspection road
By designing a duplex structure of open drainage channels and inspection roads for tailings ponds, the problem of open drainage channels for tailings ponds in the existing technology is difficult to take into account both drainage and traffic, and the dual functions of convenient construction and stable safety are realized, and the drainage and traffic capacity of the reservoir area is improved.
Patent Information
- Application Number
- CN202421135098.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing open drainage structure of closed-drained tailings ponds is difficult to take into account both the drainage function and the convenience of inspection roads when the water catchment area is large, and improper selection of structural dimensions will lead to reduced land utilization and safety hazards.
A duplex structure of open drainage channels and patrol roads in tailings ponds is designed. Through the combination of inner drainage channels, outer passways, guardrails, drain holes, drain pipes and cushions, the height of the inner and outer walls of the drainage channels and the width of the passways are optimized to ensure the dual functions of drainage and passage.
The tailings pond closed drainage channel and inspection road duplex structure with convenient construction, safe and stable construction, and both drainage and traffic functions have been achieved, which improves the drainage capacity of the reservoir area and the convenience of roads, and avoids traffic restrictions during flooding.
Smart Images
Figure CN222862455U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mine tailings pond closure and management, and in particular relates to a complex structure of a tailings pond closure flood discharge open channel and an inspection road. Background Art
[0002] After the tailings pond is discharged to the final design elevation, it is still necessary to ensure the safety and reliability of the drainage system in the reservoir area after the closure process. To facilitate maintenance, most tailings ponds adopt an open drainage channel structure after closure. By adjusting the slope of the covering soil after closure, rainwater converges into the open drainage channel and is discharged out of the reservoir through the open drainage channel.
[0003] For tailings ponds with a large catchment area, the open drainage channel structure is adopted and the flood prevention and drainage standards are taken into consideration. The cross-sectional size requirements are relatively high, and the reasonable selection of the size is particularly critical. If the open drainage channel is too deep, it will be inconvenient for inspection and the bottom soil pressure will be relatively large. If the open drainage channel is too wide, the land utilization rate will be reduced. Combined with the line selection of the open drainage channel, for the open drainage channel of tailings ponds with a larger catchment area, optimizing the structural form and improving the functional requirements are issues that need to be resolved during the closed reservoir management process.
[0004] Therefore, it is of great practical significance to optimize the open drainage channel structure, combine it with the tailings pond access road, and provide a complex open drainage channel structure that is easy to construct, safe, stable, and has diverse functions. Summary of the invention
[0005] The purpose of the utility model is to address the above-mentioned problems existing in the prior art. By optimizing the traditional open drainage channel structure and combining it with the tailings pond access road, a duplex structure of a tailings pond closed drainage channel and an inspection road is provided, which is convenient to construct, safe and stable, and has the dual functions of drainage and passage.
[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions for the duplex structure of the closed drainage open channel and the inspection road of the tailings pond:
[0007] The utility model discloses a duplex structure of an open drainage channel and an inspection road for a closed tailings pond, which is composed of an inner drainage channel, an outer access road, a guardrail, a drainage hole, a drainage pipe and a cushion layer; the inner wall of the inner drainage channel is arranged close to the soil covering slope after the tailings pond is closed, and the height of the inner wall of the inner drainage channel is greater than the height of the outer wall, the outer wall of the inner drainage channel is connected to the outer access road as a whole and is an integrated reinforced concrete casting structure, and the cushion layer is located at the lower part of the outer access road; the drainage holes are arranged in a row from top to bottom and from left to right on the outer wall of the inner drainage channel, and the position height of the drainage holes is lower than the height of the outer wall of the inner drainage channel, and a drainage pipe is installed in the drainage holes; the guardrail is installed at the junction of the outer wall of the inner drainage channel and the outer access road. The inner drainage channel and the outer access road adopt a reinforced concrete structure of grade C25 and above.
[0008] The inner wall height h of the inner drainage channel 1 =2m~3m, outer wall height h 2 =1.0~1.5m, depth of channel over water surface h 0 =0.8m~1.5m, channel width b=1.0~1.5m.
[0009] The road surface width B of the outer traffic road is ≥5.0m.
[0010] The guardrail is a road guardrail, and the height of the guardrail is h 3 =1.0m~1.5m. The guardrail shall be installed after the inner drainage channel and the outer traffic road are cast to form an integral structure and the strength is not less than 75% of the design value.
[0011] The drainage holes have a diameter of φ=150 mm to 300 mm and are arranged along the inner wall of the inner drainage channel with an axial spacing of L h =2m~5m, vertical spacing L v =40cm~60cm.
[0012] The drainage pipe is made of HDPE pipe with a pipe diameter of Dn=110mm-280mm. The specific size is determined according to the diameter of the drainage hole. Asphalt hemp is used to fill the gap between the drainage pipe and the drainage hole.
[0013] The thickness of the cushion layer is 10cm to 15cm, and the cushion layer adopts C15 concrete.
[0014] The utility model has the following positive effects after adopting the above technical scheme for the closed drainage open channel and inspection road of the tailings pond:
[0015] (1) The utility model optimizes the open drainage channel structure to meet the flood discharge capacity requirements of the reservoir area and upgrades and renovates the existing roads to facilitate maintenance and management of the reservoir area;
[0016] (2) The utility model fully considers the periodicity of flood seasons and effectively avoids the unfavorable situation of narrow and deep open drainage channels under the condition of restricted access roads. The open drainage channel structure is safer and more reliable;
[0017] (3) Compared with the traditional open drainage channel, the utility model has a large space for size and structure optimization, and has the dual functions of drainage and passage. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a cross-sectional view of the composite structure of a tailings pond closed flood discharge open channel and inspection road of the utility model;
[0019] Figure 2 The utility model is a top view of the complex structure of a tailings pond closed flood discharge open channel and an inspection road.
[0020] Figure numerals: 1-inner drainage channel; 2-outer passage road; 3-guardrail; 4-drain hole; 5-drain pipe; 6-cushion. DETAILED DESCRIPTION
[0021] In order to better describe the present invention, the duplex structure of a tailings pond closed flood discharge open channel and an inspection road of the present invention is further described in detail below in conjunction with the accompanying drawings.
[0022] Depend on Figure 1 The utility model is a composite structure cross-section diagram of a tailings pond closed flood discharge open channel and inspection road combined with Figure 2 It can be seen that the utility model of the closed tailings pond drainage open channel and inspection road complex structure is composed of an inner drainage channel 1, an outer passage 2, a guardrail 3, a drainage hole 4, a drainage pipe 5 and a cushion layer 6. The cushion layer 6 is cast with C15 plain concrete and has a thickness of 10cm; the inner wall of the inner drainage channel 1 is set close to the soil slope after the tailings pond is closed, and the inner wall height of the inner drainage channel 1 is h 1 =2.5m, outer wall height h 2 =1.5m, depth of channel over water surface h 0 =1.0m, channel width b=1.5m, and connected with the outer passage 2 for integral casting, the casting concrete grade is C25, and the road width B of the outer passage 2 is 5.5m. The drainage holes 4 are arranged in a row from top to bottom and from left to right on the outer wall of the inner drainage channel 1, and the holes are drilled by a handheld drill. The position height of the drainage holes 4 is lower than the height of the outer wall of the inner drainage channel 1. The hole diameter of the drainage holes 4 is φ=150mm, and the diameter of the drainage holes 4 is φ=150mm along the axial direction L h = Spacing 3m, vertical spacing L v =50cm, after the hole is formed, the drain pipe 5 is installed. The guardrail 3 is a road guardrail, and the height of the guardrail 3 is h 3=1.0m. The drain pipe 5 is made of HDPE pipe with a pipe diameter of Dn=110mm, and the gap between the drain pipe 5 and the drain hole 4 is filled with asphalt hemp.
Claims
1. A complex structure of a tailings pond closed drainage open channel and an inspection road, characterized in that: The invention is composed of an inner drainage channel (1), an outer passageway (2), a guardrail (3), a drainage hole (4), a drainage pipe (5) and a cushion layer (6); the inner wall of the inner drainage channel (1) is arranged close to the soil covering slope after the tailings pond is closed, and the height of the inner wall of the inner drainage channel (1) is greater than the height of the outer wall; the outer wall of the inner drainage channel (1) and the outer passageway (2) are connected as a whole and are an integrated reinforced concrete casting structure; the cushion layer (6) is located at the lower part of the outer passageway (2); the drainage holes (4) are arranged in a row from top to bottom and from left to right on the outer wall of the inner drainage channel (1), and the position height of the drainage holes (4) is lower than the height of the outer wall of the inner drainage channel (1); a drainage pipe (5) is installed in the drainage hole (4); the guardrail (3) is installed at the junction of the outer wall of the inner drainage channel (1) and the outer passageway (2).
2. A complex structure of a tailings pond closed drainage open channel and an inspection road as claimed in claim 1, characterized in that: The inner wall height of the inner drainage channel (1) is h1 = 2m to 3m, the outer wall height is h2 = 1.0 to 1.5m, the channel depth over the water surface is h0 = 0.8m to 1.5m, and the channel width is b = 1.0 to 1.5m.
3. The complex structure of the tailings pond closed drainage open channel and inspection road as claimed in claim 1, characterized in that: The road surface width B of the outer traffic road (2) is ≥5.0m.
4. The complex structure of the tailings pond closed drainage channel and inspection road as claimed in claim 1, characterized in that: The guardrail (3) is a road guardrail, and the height of the guardrail (3) is h3 = 1.0 m to 1.5 m.
5. A complex structure of a tailings pond closed drainage open channel and an inspection road as claimed in claim 1, 2, 3 or 4, characterized in that: The drainage holes (4) have a hole diameter of φ=150 mm to 300 mm and are arranged along the inner wall of the inner drainage channel (1) at an axial spacing of L h =2m~5m, vertical spacing L v =40cm~60cm.
6. A complex structure of a tailings pond closed drainage channel and an inspection road as claimed in claim 5, characterized in that: The drainage pipe (5) is made of HDPE pipe, and the pipe diameter Dn is 110 mm to 280 mm, which is determined according to the hole diameter of the drainage hole (4). Asphalt hemp is used to fill the gap between the drainage pipe (5) and the drainage hole (4).
7. A complex structure of a tailings pond closed drainage open channel and an inspection road as claimed in claim 6, characterized in that: The thickness of the cushion layer (6) is 10 cm to 15 cm.