CN103953008A - Modified mixed dam applicable to tailings ponds - Google Patents
Modified mixed dam applicable to tailings ponds Download PDFInfo
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- CN103953008A CN103953008A CN201410170030.7A CN201410170030A CN103953008A CN 103953008 A CN103953008 A CN 103953008A CN 201410170030 A CN201410170030 A CN 201410170030A CN 103953008 A CN103953008 A CN 103953008A
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Abstract
The invention discloses a modified mixed dam applicable to tailings ponds. The dam comprises a dam body, an upstream face impermeable layer, an impermeable tooth groove, a drainage piled rock prism body, an upstream face drainage layer, an upstream face inverted filter layer, an inverted filter tooth groove, a dam outer slope impermeable layer, a dam lower inverted filter layer, a dam lower drainage layer, a drainage pipe, a seepage collection pipe, a dam body and mountain contact surface impermeable layer, and a dam body and mountain contact surface drainage layer, wherein the upstream face impermeable layer is positioned among the dam body, the drainage piled rock prism body and the upstream face drainage layer; the upstream face drainage layer and the drainage piled rock prism body are positioned between the upstream face impermeable layer and the upstream face inverted filter layer; the drainage piled rock prism body is positioned below the upstream face drainage layer; the dam lower inverted filter layer is positioned between the dam body and the dam lower drainage layer; the drainage pipe is positioned in the dam lower drainage layer; the inlet of the drainage pipe is connected with the seepage collection pipe; a gate valve is arranged at the outlet of the drainage pipe; the seepage collection pipe is positioned in the drainage piled rock prism body. The dam has the advantages that local material can be adopted for damming, the damming cost is low, the running is reliable, the maintenance is convenient, and the function is comprehensive.
Description
Technical field
The present invention relates to a kind of modified mixed dam that is applicable to Tailings Dam.
Background technology
At present, China's Tailings Dam quantity reaches more than 12000, more than 100 hundred million tons of volume of cargo in storages.Safety of Tailings Dam is related to the safety of downstream resident's lives and properties, the pollution of Land Environment, and the Safety of Tailings Dam accident taking place frequently in recent years especially, has brought larger economic loss to country, and it is stable that the casualties that security incident causes affects social harmony.
Safety of Tailings Dam outstanding problem, safety device drop into also very large.The ratio of Tailings Dam construction investment in whole mine construction investment raising gradually.How in improving tailing dam safety factor, to reduce as much as possible construction investment, become the important topic that mine development faces.The safety device of Tailings Dam mainly ooze system, observation facility etc. by initial dam, fill dam, flood drainage system, row and form.Wherein the construction investment of initial dam is higher in the ratio of whole Tailings Dam construction investment, and the investment that reduces initial dam becomes a key component that reduces Tailings Dam construction investment.
In Tailings Dam design, for the later stage safety of tailing dam, initial dam dam type is generally selected permeable loose rock dam.Permeable loose rock dam are mainly made up of loaded filter, the topping of rockfill and upstream face thereof, because water permeability is good, can reduce the phreatic line in tailing dam body, accelerate mine tailing fixed, are conducive to the stable of tailing dam.The building stones of building a dam that permeable loose rock dam adopt are generally hard granite, syenite, gabbro, diorite, porphyry, diabase, quartzite, osmanthus matter sandstone, limestone that density is large etc., are unsuitable for building a dam for rocks such as shale, marl, breccias.
In engineering practice, often lack satisfactory hard rock near Tailings Dam reservoir area, if use hard rock to build a dam, the high cost of building a dam, runs into this situation, most of change dam type into local material and builds a dam, and soft rock is built a dam or Weathered Material is built a dam.In engineering, use the humidifying feature of soft rock material obvious, actual various soft rock material all have a comparatively general feature, be that soft rock material is very strong to the sensitiveness of environmental change, the on-the-spot just various soft rock material of exploitation still have certain intensity, but slightly through the impact of wind and rain, Exposure to Sunlight, its intensity reduces rapidly, and particle aggravation is broken.The general coefficient of softening of soft rock is little, and after immersion saturated, loss of strength is larger, 20%～30% under remaining dry state only sometimes, and therefore humidifying distortion is larger.Equally, when Weathered Material is built a dam, often intensity is low, and coefficient of softening is little, in the initial dam Construction Practice of Tailings Dam, adopts soft rock and the Weathered Material common intensity of building a dam low, and section is large, invests high.
In the work progress of tailings reservoir preliminary dam, in order to prevent that flood from washing out the initial dam of building, and do construction diversion; Construction diversion pipe is generally selected prefabricated reinforced concrete pipe, steel pipe etc., after mozzle construction, need to carry out shutoff to mozzle, and shutoff will have certain intensity, mine tailing load can bear mine tailing and be accumulated to final period time, after shutoff, this mozzle there is no any effect.
Phreatic line shows four aspects to the impact of initial stage dam body: a) change the stress state in dam body, the Rock And Soil effective stress below phreatic line reduces; B) mechanics index of physics of the following Rock And Soil of reduction phreatic line; C) overflow position at phreatic line and may produce the seepage failure such as piping, stream soil; D), when dam material is silt, sand, in the situation that phreatic line is higher, there is the possibility of earthquake liquefaction in initial dam.Therefore in engineering practice, reduce phreatic line in dam body significant to stablizing of dam body as far as possible.
Tailings Dam puts into operation the initial stage, and flood drainage system not yet starts water inlet, and mine tailing deposition beach face does not form, and permeable loose rock dam generally there will be the muddy phenomenon of of short duration race, runs height, tailings discharging amount and initial stage storage capacity etc. that the muddy time depends on initial dam.At present, prevent that initial dam from running muddy measure for clay sloping core being set within the scope of the certain altitude of the bottom of dam upstream face in the early stage, clay sloping core is set can increase construction investment on the one hand, and the row that can weaken to a certain extent on the other hand tailing dam is oozed ability.
Summary of the invention
Technical problem to be solved by this invention is that the modified mixed dam that is applicable to Tailings Dam that a kind of investment is lower, reliable, be convenient to maintenance, complete function is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of modified mixed dam that is applicable to Tailings Dam, comprises dam body, upstream face impervious barrier, antiseepage teeth groove, draining enrockment rib body, upstream face drainage blanket, upstream face loaded filter, anti-filter teeth groove, slope impervious barrier outside dam, loaded filter under dam, drainage blanket under dam, gutter, collection oozes pipe, dam body and massif contact surface impervious barrier, dam body and massif contact surface drainage blanket, described upstream face impervious barrier is positioned at dam body and draining enrockment rib body, between upstream face drainage blanket, the lower end of described upstream face impervious barrier is arranged in antiseepage teeth groove, and described antiseepage teeth groove is positioned at drainage blanket below under dam, described upstream face drainage blanket, draining enrockment rib body is positioned between upstream face impervious barrier and upstream face loaded filter, and draining enrockment rib body is positioned at the below of upstream face drainage blanket, the lower end of described upstream face loaded filter is arranged in anti-filter teeth groove, under described dam, loaded filter is under dam body and dam between drainage blanket, described gutter is arranged in drainage blanket under dam, the import of described gutter is oozed pipe with collection and is connected, the outlet of described gutter is provided with gate valve, described collection oozes pipe and is arranged in draining enrockment rib body, and described dam body and massif contact surface impervious barrier are positioned at dam body, between dam body and massif contact surface drainage blanket.
Further, described dam body is built up by local materials such as Weathered Material, soft rock material, barren rock, waste residue, earth materials.
Further, described upstream face impervious barrier, dam body and massif contact surface impervious barrier are the thick clay liner of the thick sand-gravel cushion-2.0mmHDPE of 30cm film-50cm, the sand gravel D=2～10mm of sand-gravel cushion.
Further, under described upstream face loaded filter, dam, loaded filter is the thick sand-gravel cushion-400g/m of 30cm
2the thick sand-gravel cushion of geotextiles-30cm, the sand gravel D=2～10mm of sand-gravel cushion.
Further, outside described dam, slope impervious barrier is 10cm prefabricated section bank protection, and middle cement mortar is smeared seam.
The present invention is by arranging slope impervious barrier outside upstream face impervious barrier, dam, dam body and massif contact surface impervious barrier, dam body percolating water and dam material are farthest isolated, by loaded filter under dam is set, reduce the phreatic line height in dam body, make dam material major part more than phreatic line, mechanics index of physics and effective stress are higher, and dam body buckling safety factor is higher.The situation that is soft rock for dam material, this dam type can make soft rock keep dry state as far as possible, and loss of strength ratio will significantly reduce, and add the distinctive higher dry density that rolls of soft rock, very favourable to the stability of dam body.By utilizing local material as Weathered Material, soft rock material, barren rock, waste residue, earth material etc. farthest reduce construction investment, solve the not enough problem of the dam material often running in work progress.
The present invention is by draining enrockment rib body, upstream face loaded filter being set and under dam, gutter being set, and on gutter, gate valve is set, and can control flexibly the pervious function of dam type.In the time that gate valve is closed, this dam is waterproof dam, and in the time that gate valve is opened, this dam belongs to permeable dike.The water permeability that can control flexibly dam body is significant to Tailings Dam, because when Tailings Dam initial operating stage, not yet form mine tailing deposition beach, mine tailing is difficult for clarification, for roller compaction water-permeable loose rock dam, often occur running muddy phenomenon, now gate valve can be closed, modified mixed dam is waterproof dam, can run muddy phenomenon the initial stage of preventing.When tailings pile is to initial dam dam crest, when flood drainage system can draining, mine tailing deposition beach face forms, the tailing water that now passes through tailing filtration is more clear, gate valve can be opened, modified mixed dam becomes permeable dike, reduces the phreatic line height in mine tailing accumulation body, favourable to the stability and safety of dam body.Mine tailing piling height be not accumulated to initial stage dam crest, flood drainage system cannot draining before, while suffering from the flood of larger frequency, for preventing the unrestrained top of flood, do not occur under the prerequisite of erosion damage in guarantee, the timely draining of unlatching number that can moderate control gate valve, plays booster action to the flood control of Tailings Dam initial stage.
After below the absolute altitude of draining enrockment rib body top, key dam body completes, for the less Tailings Dam of catchment area, under dam, gutter can be brought into play the effect of construction diversion, and for the larger Tailings Dam of catchment area, under dam, gutter can be assisted other construction diversion measure performance construction diversion effects.
In the time having surface water, water burst or crevice water, percolating water at the bottom of the contact site of initial dam and both sides massif or initial dam dam, should take measures above-mentioned current to cause initial dam downstream, prevent from entering in dam body, softening dam material or lifting dam seepage line, cause potential safety hazard to safety of dam body.In the time that the infiltration current of both sides massif present the state of concentrating out stream, can infiltration current be caused to dam body downstream by the gutter that appropriate section is set; In the time that the infiltration current of both sides massif are planar form and go out to flow, can between dam material and massif, drainage blanket be set, at the bottom of being caused to dam, current discharge; When both sides, massif water percolating capacity is minimum, when dam material is not soft rock, measures for draining leakage also can be set.
In sum, the present invention has the following advantages: (1) can farthest adapt to local available dam material, comprises earth material, soft rock material, Weathered Material, barren rock etc., solves the situation that dam material deficiency maybe can not meet design requirement; (2) phreatic line in dam body is very low, and the buckling safety factor of dam body is higher; (3) initial dam construction period can utilize row under dam to ooze system as the part in construction diversion measure; (4) if tailing water water quality has corrosiveness to dam material, use the present invention, can farthest reduce the impact of tailing water confrontation dam material; (5) at Tailings Dam initial operating stage, can, by closing gutter, tailing water be clarified, the initial stage of preventing is run muddy problem; (6) can not arrange outward for tailing water or Tailings Dam needs the situation of antiseepage processing, this dam type both can play antiseepage effect, again can be in the time that dam body buckling safety factor is lower, by the draining of opening water discharge pipe, reduce the phreatic line height in accumulation of dam, improve the effect of safety of dam body coefficient; (7) fine to the water permeability compliance of the dam foundation, for the more intense ground of water permeability, can curtain grouting be set at antiseepage teeth groove place, reduce water permeability, can control flexibly infiltration and Tailings Dam seepage in dam body; (8), because caliber under this dam type dam is generally less, once be damaged, can carry out in time shutoff processing in running, in its damaging influence can be controlled to a certain degree.
The present invention is applicable to dry stockyard initial dam, refuse dump initial dam, refuse landfill dam etc., is specially adapted to meet water softening, argillization, the situation that intensity obviously reduces;
Brief description of the drawings
Fig. 1 is the vertical section schematic diagram of the embodiment of the present invention;
Fig. 2 is floor map embodiment illustrated in fig. 1;
Fig. 3 is schematic cross section embodiment illustrated in fig. 1;
In figure: 1-dam body, 2-draining enrockment rib body, 3-anti-filter teeth groove, 4-antiseepage teeth groove, 5-gutter, 6-collection ooze under pipe, 7-upstream face loaded filter, 8-upstream face impervious barrier, 9-dam outside loaded filter, 10-dam drainage blanket, 12-upstream face drainage blanket, 13-gate valve, 14-dam body and massif contact surface impervious barrier, 15-dam body and massif contact surface drainage blanket under slope impervious barrier, 11-dam.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to accompanying drawing, the present embodiment comprises dam body 1, upstream face impervious barrier 8, antiseepage teeth groove 4, draining enrockment rib body 2, upstream face drainage blanket 12, upstream face loaded filter 7, anti-filter teeth groove 3, slope impervious barrier 10 outside dam, loaded filter 9 under dam, drainage blanket 11 under dam, gutter 5, collection oozes pipe 6, dam body and massif contact surface impervious barrier 14, dam body and massif contact surface drainage blanket 15, described upstream face impervious barrier 8 is positioned at dam body 1 and draining enrockment rib body 2, between upstream face drainage blanket 12, the lower end of described upstream face impervious barrier 8 is arranged in antiseepage teeth groove 4, and described antiseepage teeth groove 4 is positioned at drainage blanket 11 belows under dam, described upstream face drainage blanket 12, draining enrockment rib body 2 is between upstream face impervious barrier 8 and upstream face loaded filter 7, and draining enrockment rib body 2 is positioned at the below of upstream face drainage blanket 12, the lower end of described upstream face loaded filter 7 is arranged in anti-filter teeth groove 3, under described dam, loaded filter 9 is under dam body 1 and dam between drainage blanket 11, described gutter 5 is arranged in drainage blanket 11 under dam, the import of described gutter 5 is oozed pipe 6 with collection and is connected, the outlet of described gutter 5 is provided with gate valve 13, described collection oozes pipe and 6 is arranged in draining enrockment rib body 2, and described dam body and massif contact surface impervious barrier 14 are positioned at dam body 1, between dam body and massif contact surface drainage blanket 15.
The sequence of construction of the present embodiment is generally under gutter under antiseepage teeth groove, teeth groove part impervious barrier and teeth groove backfill, dam, draining enrockment rib body, draining enrockment rib body downstream part impervious barrier, dam loaded filter, the following key dam body of draining enrockment rib body top absolute altitude, the above key dam body of draining enrockment rib body top absolute altitude, dam forward part impervious barrier, upstream face drainage blanket, anti-filter teeth groove and upstream face loaded filter under drainage blanket, dam.Impervious barrier, the drainage blanket of in dam embankment process, constructing between dam body and massif.
The pipeline of burying underground under initial dam, adopts flexible pipe, and as steel pipe, pvc pipe etc., caliber is generally in 800mm, and quantity can be determined according to actual conditions, should be evenly arranged, and every pipeline is equipped with a gate valve, controls the stream that of pipeline.
The evaluation method of storehouse inner drainage layer thickness
，
，
，
，
In formula:
for drainage blanket water percolating capacity;
for the maximum water percolating capacity of tailing dam of estimation;
for drainage blanket thickness;
for the average length along axis of dam direction drainage blanket;
for mean flow rate in drainage blanket;
for the transmission coefficient of drainage blanket;
for the ratio of current in drainage blanket falls;
for dam body upstream face area;
for mine tailing percolating water mean flow rate;
for the maximum transmission coefficient in each mine tailing layering;
for the hydraulic slope in mine tailing percolating water.
The factor that design of impervious layer should be considered: according to the height of initial dam, select the antiseepage film of corresponding hydraulic pressure ability to bear; The upper and lower layer of antiseepage film should design clay topping, prevents in work progress, and antiseepage film is damaged, and the thickness of clay topping should be according to bearing hydraulic pressure and constructing issuable determination of external force; Antiseepage film should be goed deep into bottom of trench and both sides impervious layer by teeth groove, seepage proof curtain; Antiseepage film will be taked strengthening measure in turning, lap-joint, and takes anchor measure, prevents from pulling, and ensures the hydraulic pressure holding capacity of joint.
Certain Tailings Dam adopts upper reaches method mine tailing to build a dam, total height of dam 94.5m, the high 60m of tailing dam.The dam material that initial dam can be selected is local thin,tough silk English phyllite, tunnel drivage excavation waste residue, and thin,tough silk English phyllite has weathering to a certain degree.Initial dam adopts modified mixed dam, and width at dam crest is 4m, and upstream Slope is than being 1:2.0, and slope, slope, downstream is than being 1:2.0, and initial dam height is 34.5m.
Draining enrockment rib body top width 6m, downstream Slope, than for 1:1, is highly 10m; The composition of upstream face loaded filter, upstream face drainage blanket, upstream face impervious barrier is followed successively by 30cm pitched work, the thick sand-gravel cushion of 30cm (D=2～10mm)-400g/m
2the thick sand-gravel cushion of geotextiles-30cm (D=2～10mm), 2.15m piece stone drainage blanket, the thick clay liner of the thick sand-gravel cushion of 30cm (D=2～10mm)-2.0mmHDPE film-50cm.Impervious barrier between dam body and both sides massif consists of massif after dam body materials-50cm thick sand-gravel cushion of clay liner-2mmHDPE film-30cm (D=2～10mm)-clear base.Dam body bottom row's infiltration layer consists of dam body materials, the thick sand-gravel cushion of 30cm (D=2～10mm)-400g/m
2dam body base foundation after the thick sand-gravel cushion of geotextiles-30cm (D=2～10mm), 3m chunk stone drainage blanket-clear base.Outside dam, slope impervious barrier consists of 10cm prefabricated section bank protection, and middle cement mortar is smeared seam, constructs to dam body piece stone drainage blanket top.Dam body gutter adopts DN300 steel pipe, and pipe thickness is 8mm, and radical is 4, and every steel pipe arranges a valve outward.Before steel pipe, header adopts DN600 steel pipe, and the outer plum blossom boring of steel pipe, holes weekly 18, spacing of wells 10cm, aperture 2cm, steel pipe outsourcing 400g/m
2geotextiles.
The seepage discharge calculating in tailing dam body is 5L/s, and the design collecting water from runoff of piece stone drainage blanket is 23L/s, and Steel Pipe Design displacement is 774L/s.
Claims (5)
1. a modified mixed dam that is applicable to Tailings Dam, comprises dam body, it is characterized in that: be also provided with upstream face impervious barrier, antiseepage teeth groove, draining enrockment rib body, upstream face drainage blanket, upstream face loaded filter, anti-filter teeth groove, slope impervious barrier outside dam, loaded filter under dam, drainage blanket under dam, gutter, collection oozes pipe, dam body and massif contact surface impervious barrier, dam body and massif contact surface drainage blanket, described upstream face impervious barrier is positioned at dam body and draining enrockment rib body, between upstream face drainage blanket, the lower end of described upstream face impervious barrier is arranged in antiseepage teeth groove, and described antiseepage teeth groove is positioned at drainage blanket below under dam, described upstream face drainage blanket, draining enrockment rib body is positioned between upstream face impervious barrier and upstream face loaded filter, and draining enrockment rib body is positioned at the below of upstream face drainage blanket, the lower end of described upstream face loaded filter is arranged in anti-filter teeth groove, under described dam, loaded filter is under dam body and dam between drainage blanket, described gutter is arranged in drainage blanket under dam, the import of described gutter is oozed pipe with collection and is connected, the outlet of described gutter is provided with gate valve, described collection oozes pipe and is arranged in draining enrockment rib body, and described dam body and massif contact surface impervious barrier are positioned at dam body, between dam body and massif contact surface drainage blanket.
2. the modified mixed dam that is applicable to Tailings Dam according to claim 1, is characterized in that: described dam body is built up by Weathered Material, soft rock material, barren rock, waste residue or earth material.
3. the modified mixed dam that is applicable to Tailings Dam according to claim 1 and 2, it is characterized in that: described upstream face impervious barrier, dam body and massif contact surface impervious barrier are the thick clay liner of the thick sand-gravel cushion-2.0mmHDPE of 30cm film-50cm, the sand gravel D=2～10mm of sand-gravel cushion.
4. the modified mixed dam that is applicable to Tailings Dam according to claim 1 and 2, is characterized in that: under described upstream face loaded filter, dam, loaded filter is the thick sand-gravel cushion-400g/m of 30cm
2the thick sand-gravel cushion of geotextiles-30cm, the sand gravel D=2～10mm of sand-gravel cushion.
5. the modified mixed dam that is applicable to Tailings Dam according to claim 1 and 2, is characterized in that: outside described dam, slope impervious barrier is 10cm prefabricated section bank protection, and middle cement mortar is smeared seam.
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|---|---|---|---|
| CN201410170030.7A CN103953008B (en) | 2014-04-25 | 2014-04-25 | A kind of modified mixed dam being applicable to Tailings Dam |
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| CN201410170030.7A CN103953008B (en) | 2014-04-25 | 2014-04-25 | A kind of modified mixed dam being applicable to Tailings Dam |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711953A (en) * | 2015-02-10 | 2015-06-17 | 太原钢铁(集团)有限公司 | Tailing dam built through barren rock |
| CN108049370A (en) * | 2017-10-26 | 2018-05-18 | 中国水利水电科学研究院 | Cemented gravel dam antiseepage drainage system |
| CN109162258A (en) * | 2018-09-10 | 2019-01-08 | 中国五环工程有限公司 | Band the industrial enterprise's slag library T Xing Ba and its dry zoning round-robin method |
| CN109487799A (en) * | 2018-10-19 | 2019-03-19 | 金堆城钼业股份有限公司 | A kind of tailings reservoir preliminary dam loaded filter construction methods |
| CN110318404A (en) * | 2019-07-09 | 2019-10-11 | 中国恩菲工程技术有限公司 | Middle wire type tailing dam |
| CN110656629A (en) * | 2019-10-22 | 2020-01-07 | 中国恩菲工程技术有限公司 | Initial dam of upstream method damming tailings pond |
| CN111893957A (en) * | 2020-07-27 | 2020-11-06 | 中国恩菲工程技术有限公司 | Initial dam of tailing pond |
| CN112343020A (en) * | 2020-10-29 | 2021-02-09 | 矿冶科技集团有限公司 | Environmental risk prevention and control integrated system and method for historical legacy tailing pond |
| CN112900369A (en) * | 2021-01-15 | 2021-06-04 | 东北大学 | Tailing storehouse row oozes reinforced structure |
| CN114294056A (en) * | 2021-12-14 | 2022-04-08 | 万宝矿产有限公司 | Open pit treatment method combining waste rock and dry tailings |
| CN114892681A (en) * | 2022-06-17 | 2022-08-12 | 中国恩菲工程技术有限公司 | Sand dam, tailing dam and medium-line tailing damming method |
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| CN202117155U (en) * | 2011-06-11 | 2012-01-18 | 昆明有色冶金设计研究院股份公司 | Efficient leakage drainage device for inner slope of initial dam of tailing pond |
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| RU2007510C1 (en) * | 1990-08-06 | 1994-02-15 | Калишевский Вадим Николаевич | Local material dam |
| CN201713790U (en) * | 2010-06-11 | 2011-01-19 | 长沙有色冶金设计研究院 | Structure preventing muddy water from leaking out of primary dam of tailing reservoir of mine |
| CN202117155U (en) * | 2011-06-11 | 2012-01-18 | 昆明有色冶金设计研究院股份公司 | Efficient leakage drainage device for inner slope of initial dam of tailing pond |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711953A (en) * | 2015-02-10 | 2015-06-17 | 太原钢铁(集团)有限公司 | Tailing dam built through barren rock |
| CN108049370B (en) * | 2017-10-26 | 2023-12-08 | 中国水利水电科学研究院 | Seepage-proofing drainage system of gel sand gravel dam |
| CN108049370A (en) * | 2017-10-26 | 2018-05-18 | 中国水利水电科学研究院 | Cemented gravel dam antiseepage drainage system |
| CN109162258A (en) * | 2018-09-10 | 2019-01-08 | 中国五环工程有限公司 | Band the industrial enterprise's slag library T Xing Ba and its dry zoning round-robin method |
| CN109487799A (en) * | 2018-10-19 | 2019-03-19 | 金堆城钼业股份有限公司 | A kind of tailings reservoir preliminary dam loaded filter construction methods |
| CN110318404A (en) * | 2019-07-09 | 2019-10-11 | 中国恩菲工程技术有限公司 | Middle wire type tailing dam |
| CN110318404B (en) * | 2019-07-09 | 2024-02-06 | 中国恩菲工程技术有限公司 | Neutral line type tailing dam |
| CN110656629A (en) * | 2019-10-22 | 2020-01-07 | 中国恩菲工程技术有限公司 | Initial dam of upstream method damming tailings pond |
| CN111893957A (en) * | 2020-07-27 | 2020-11-06 | 中国恩菲工程技术有限公司 | Initial dam of tailing pond |
| CN112343020A (en) * | 2020-10-29 | 2021-02-09 | 矿冶科技集团有限公司 | Environmental risk prevention and control integrated system and method for historical legacy tailing pond |
| CN112900369A (en) * | 2021-01-15 | 2021-06-04 | 东北大学 | Tailing storehouse row oozes reinforced structure |
| CN114294056A (en) * | 2021-12-14 | 2022-04-08 | 万宝矿产有限公司 | Open pit treatment method combining waste rock and dry tailings |
| CN114892681A (en) * | 2022-06-17 | 2022-08-12 | 中国恩菲工程技术有限公司 | Sand dam, tailing dam and medium-line tailing damming method |
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