CN109098153B - Tailing pond sediment body surface flood discharge slot - Google Patents
Tailing pond sediment body surface flood discharge slot Download PDFInfo
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- CN109098153B CN109098153B CN201811004260.0A CN201811004260A CN109098153B CN 109098153 B CN109098153 B CN 109098153B CN 201811004260 A CN201811004260 A CN 201811004260A CN 109098153 B CN109098153 B CN 109098153B
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- shaped water
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- slope
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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Abstract
The invention relates to a flood discharge groove on the surface of a slag body of a tailing pond, which comprises a first-stage step, a second-stage step, two trumpet-shaped water collection surfaces, two flood discharge grooves along slag side slopes, the slag side slopes and an initial dam. The first step and the second step are manually arranged for increasing the storage capacity and safely discharging slag; the horn-shaped water collecting surface is arranged on the step plane; the flood discharge ditch along the slag side slope is a concrete ditch constructed along the slag side slope; the horn-shaped water collecting surface of the step and the central axes of the flood discharge ditches along the slag side slope and the horn-shaped water collecting surfaces of the upper step and the lower step are on the same approximate straight line to form a group of flood discharge grooves, and a plurality of groups of flood discharge grooves can be arranged on the surface of the slag body of the same tailing pond. The invention can collect overflow water generated on the slope of the previous step of the restored forest and the plane of the step in heavy storm and discharge flood along the slag slope flood discharge groove, thereby preventing landslide and tailing pond explosion accidents caused by the slope of the restored forest.
Description
Technical Field
The invention belongs to the technical field of ore body mining, and particularly relates to an excavation structure of a flood discharge groove on the surface of a slag body of a tailing pond.
Background
China has a set of complete standards and systems for site selection, dam building, slag discharging, closing of a mine tailing pond, tailing pond management and the like, and according to the requirement of environmental protection, soil filling and forest restoration are required after the mine tailing pond is closed, and dynamic supervision is implemented. The mine tailing pond is mainly composed of blocks, granular rock materials, soil covering soil and the like with diameters of dozens of centimeters and below in various specifications. When an explosion rain comes, a large amount of accumulated water is often generated at a low-lying part of the slag body step plane of the tailing pond, then the accumulated water gradually permeates into the slag body of the tailing pond with fine silt, small granules and soil on the shallow surface layer of the low-lying accumulated water are taken away by water, the total mass of the shallow surface layer is reduced, the density of the slag body is reduced, after flood is discharged, a depression area with the depth of dozens or even hundreds of square meters is formed at the shallow surface layer of the low-lying accumulated water, the depth and the area of the depression area become larger and larger as time passes, when the next heavy explosion rain comes, a large amount of accumulated water is generated in the depression area, and the tailing side slope of the step is easy to slide or the whole tailing pond generates explosion degree accidents. The technical scheme provided by the invention is that the mutual extension and matching of the horn-shaped water collecting surface distributed on the step plane of the mine tailing pond and the flood discharge ditch built on the slag side slope are utilized, so that rainwater falling to the soil layer of the mine tailing pond can be collected and discharged in the rain fall, and landslide and explosion accidents caused by the side slope of the mine tailing pond after soil restoration can be prevented.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the flood discharge groove on the surface of the slag body of the tailing pond can deal with overflow water generated in heavy rainstorm and discharge flood in time, and can prevent landslide and reservoir explosion accidents caused by the slope of the recovered soil and the recovered forest.
The technical scheme of the invention is as follows:
a tailing pond slag body surface flood discharge groove comprises a first-stage step, a second-stage step and an initial dam, wherein the heights of the first-stage step, the second-stage step and the initial dam are gradually reduced;
the upper surface of the first step is provided with a first trumpet-shaped water collecting surface, the side surface of the first step is provided with a first slag side slope, and the first slag side slope is provided with a first slag side slope flood discharge ditch;
the upper surface of the second step is provided with a second trumpet-shaped water collecting surface, the side surface of the second step is provided with a second slag side slope, and the second slag side slope is provided with a second slag side slope flood discharge ditch;
the small opening end of the first trumpet-shaped water collecting surface is communicated with a first slag slope flood discharging ditch;
the small opening end of the second trumpet-shaped water collecting surface is communicated with a second slag slope flood discharging ditch;
the central axes of the first horn-shaped water collecting surface, the first slag side slope flood discharge ditch and the second horn-shaped water collecting surface and the central axes of the second slag side slope flood discharge ditch are on the same approximate straight line (the approximate straight line refers to that the horizontal projection connecting lines of the four central axes are approximate to a straight line);
the height difference between the first step and the second step is not more than 30 m.
The upper surface of the first-stage step is a plane, the first horn-shaped water collecting surface is lower than the plane of the upper surface of the step, a slope is formed between the large end and the small end of the first horn-shaped water collecting surface, and the surface of the first horn-shaped water collecting surface is formed by wiping surfaces of low-grade concrete.
Preferably, the first trumpet-shaped water collecting surface is 500mm lower than the upper surface plane of the step, and a gradient of 5 per mill is formed between the large end and the small end of the first trumpet-shaped water collecting surface.
The upper surface of the second-stage step is a plane, the second horn-shaped water collecting surface is lower than the plane of the upper surface of the step, a slope is formed between the large end and the small end of the second horn-shaped water collecting surface, and the surface of the second horn-shaped water collecting surface is formed by a low-grade concrete wiping surface.
Preferably, the second trumpet-shaped water collecting surface is 500mm lower than the upper surface plane of the step, and a gradient of 5 per mill is formed between the large end and the small end of the second trumpet-shaped water collecting surface.
The first slag side slope flood discharge ditch and the second slag side slope flood discharge ditch are grooves which are constructed by concrete materials and have square sections along the slag side slope direction, and the axis is basically parallel to the free water discharge direction of the slag side slope (the free water discharge direction refers to the direction in which water flows along the surface of the slag side slope only under the action of gravity, and the basically parallel meaning refers to the included angle between the two not exceeding 10 degrees).
First loudspeaker form water-collecting surface, the osculum end of second loudspeaker form water-collecting surface link to each other with first along slay slope flood discharge ditch, second along the last mouthful (upper end entry) of slay slope flood discharge ditch respectively, and the terminal directional second loudspeaker form water-collecting surface's of terminal mouth end and the first terminal width of following slay slope flood discharge ditch of first edge slay slope flood discharge ditch is less than the width of the macrostoma end of second loudspeaker form water-collecting surface.
The invention can collect overflow water generated on the slope of the previous step of the restored-soil forestation and the plane of the step when heavy rainstorm occurs, and can discharge flood through the flood discharge groove along the slag slope, thereby preventing landslide and reservoir explosion accidents generated on the slope of the restored-soil forestation.
Drawings
FIG. 1 is a schematic view of the structure of a flood discharge trench according to the present invention;
in the figure, 1, a first step, 2, a second step, 31, a first trumpet-shaped water collecting surface, 32, a second trumpet-shaped water collecting surface, 41, a first slag side slope flood discharging ditch, 42, a second slag side slope flood discharging ditch, 5, a slag side slope and 6, an initial dam.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a tailing pond slag surface flood discharge groove comprises a first step 1, a second step 2, a first trumpet-shaped water collection surface 31, a second trumpet-shaped water collection surface 32, a first slag side slope flood discharge ditch 41, a second slag side slope flood discharge ditch 42, a slag side slope 5 and an initial dam 6. The small-mouth ends of the first horn-shaped water collecting surface 31 and the second horn-shaped water collecting surface 32 are respectively communicated with the first slag slope flood discharge ditch 41 and the second slag slope flood discharge ditch 42, the central axes of the first horn-shaped water collecting surface 31 on the first step 1 and the second step 2, the central axis of the first slag slope flood discharge ditch 41, the central axis of the second horn-shaped water collecting surface 32 and the central axis of the second slag slope flood discharge ditch 42 are basically on the same straight line (namely, the projections of the four central axes on the horizontal plane after being connected are almost straight lines or broken line segments with approximate straight lines with included angles of two-by-two degrees not more than 15 degrees). The small flared ends of the first flared water collecting surface 31 and the second flared water collecting surface 32 are connected with the upper opening (upper end inlet) of the slag slope flood discharging ditch on the step, and the size and the shape of the large flared end can collect the flood discharged from the slag slope flood discharging ditch on the step.
The number of the step steps in the invention can not exceed two steps, so that only the first step 1 and the second step 2 are arranged, the vertical height difference of the two steps can not exceed 30m, and the step height difference is artificially arranged for increasing the storage capacity and safely discharging slag.
In the invention, the first trumpet-shaped water collecting surface 31 and the second trumpet-shaped water collecting surface 32 are arranged on a step plane, the depth of the first trumpet-shaped water collecting surface is about 500mm lower than the step plane, a gradient of 5 per thousand is kept between a large opening end and a small opening end of the trumpet-shaped water collecting surface (namely, the height of the large opening end is higher than that of the small opening end to form an inclined plane), and the first trumpet-shaped water collecting surface 31 and the second trumpet-shaped water collecting surface 32 form the trumpet-shaped water collecting surface by wiping surfaces of low-grade concrete.
In the present invention, the first slag side slope flood drain 41 and the second slag side slope flood drain 42 are both square trenches constructed with concrete material in which the inner frame section is about 400 × 400mm in the slag side slope direction, and the central axis is substantially parallel to the free drainage direction of the slag side slope 5 (the free drainage direction is a direction in which water flows along the surface of the slag side slope 5 only under the action of gravity, and the substantially parallel direction means that an included angle therebetween is not more than 10 degrees).
Claims (1)
1. The utility model provides a tailing storehouse sediment body surface flood discharge slot which characterized in that: comprises a first-stage step (1) with gradually reduced elevation, a second-stage step (2) and an initial dam (6);
the upper surface of the first step (1) is provided with a first trumpet-shaped water collecting surface (31), the side surface of the first step (1) is provided with a first slag side slope, and the first slag side slope is provided with a first slag side slope flood discharging ditch (41);
the upper surface of the first-stage step (1) is a plane, the first trumpet-shaped water collecting surface (31) is lower than the plane of the upper surface of the step, a slope is formed between the large end and the small end of the first trumpet-shaped water collecting surface (31), and the surface of the first trumpet-shaped water collecting surface (31) is formed by a low-grade concrete wiping surface;
the upper surface of the second step (2) is provided with a second trumpet-shaped water collecting surface (32), the side surface of the second step (2) is provided with a second slag side slope, and the second slag side slope is provided with a second slag side slope flood discharging ditch (42);
the upper surface of the second-stage step (2) is a plane, the second trumpet-shaped water collecting surface (32) is lower than the plane of the upper surface of the step, a slope is formed between the large end and the small end of the second trumpet-shaped water collecting surface (32), and the surface of the second trumpet-shaped water collecting surface (32) is formed by a low-grade concrete wiping surface;
the small opening end of the first trumpet-shaped water collecting surface (31) is communicated with a first slag slope flood discharging ditch (41);
the small opening end of the second trumpet-shaped water collecting surface (32) is communicated with a second slag slope flood discharging ditch (42);
the central axes of the first trumpet-shaped water collecting surface (31), the first slag side slope flood discharging ditch (41) and the second trumpet-shaped water collecting surface (32) and the central axis of the second slag side slope flood discharging ditch (42) are approximately on the same straight line;
the first slag side slope flood discharge ditch (41) and the second slag side slope flood discharge ditch (42) are grooves which are constructed by concrete materials and have square sections along the direction of the slag side slope (5), and the central axis of the grooves is basically parallel to the free water discharge direction of the slag side slope (5);
the elevation difference between the first step (1) and the second step (2) is not more than 30 m;
the first trumpet-shaped water collecting surface (31) is 500mm lower than the upper surface plane of the step, and a gradient of 5 per mill is formed between the large end and the small end of the first trumpet-shaped water collecting surface (31);
the second trumpet-shaped water collecting surface (32) is 500mm lower than the upper surface plane of the step, and a gradient of 5 per mill is formed between the large end and the small end of the second trumpet-shaped water collecting surface (32);
the osculum end of first loudspeaker form water catch face (31), second loudspeaker form water catch face (32) links to each other with first along slay slope flood discharge ditch (41), the second along the last mouth of slay slope flood discharge ditch (42) respectively, and the terminal opening end of terminal directional second loudspeaker form water catch face (32) of first edge slay slope flood discharge ditch (41) and the first terminal width of following slay slope flood discharge ditch (41) are less than the width of the opening end of second loudspeaker form water catch face (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004260.0A CN109098153B (en) | 2018-08-30 | 2018-08-30 | Tailing pond sediment body surface flood discharge slot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004260.0A CN109098153B (en) | 2018-08-30 | 2018-08-30 | Tailing pond sediment body surface flood discharge slot |
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| Publication Number | Publication Date |
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| CN109098153A CN109098153A (en) | 2018-12-28 |
| CN109098153B true CN109098153B (en) | 2021-06-11 |
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| CN201811004260.0A Active CN109098153B (en) | 2018-08-30 | 2018-08-30 | Tailing pond sediment body surface flood discharge slot |
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| CN110219309A (en) * | 2019-05-29 | 2019-09-10 | 贵州开磷有限责任公司 | A kind of FIX CHARGE RATE ABOUT THE WASTE cinder field enhancement of environment method |
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| CN206887971U (en) * | 2017-07-01 | 2018-01-16 | 杭州广正建设工程有限公司 | slope drainage structure |
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