CN102644288B - A kind of construction method saving the anhydrous Tailings Dam of clean and safe - Google Patents
A kind of construction method saving the anhydrous Tailings Dam of clean and safe Download PDFInfo
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- CN102644288B CN102644288B CN201110379067.7A CN201110379067A CN102644288B CN 102644288 B CN102644288 B CN 102644288B CN 201110379067 A CN201110379067 A CN 201110379067A CN 102644288 B CN102644288 B CN 102644288B
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Abstract
A kind of construction method saving the anhydrous Tailings Dam of clean and safe is on the basis of traditional tailing, by setting up longitudinal mixed flow ditch, horizontal mixed flow ditch, horizontal drain system, capillary drain system, row's seepage well, dam slope drainage pipe system, facility such as row seepage well piping and rubble concrete sand blocking dam etc., make Tailings Slurry with discharge with dehydration, make tailing dam body saturated without infiltration, to make in storehouse tailings without liquefaction, thus ensure that Safety of Tailings Dam runs, and discharge water can be made clean, recycle for ore dressing, realize saving, cleaning and safety in production.Accompanying drawing 1 is the vertical perspective view (there is striping centre) of this anhydrous Tailings Dam, symbolic significance is marked as follows: 1 in figure---longitudinal mixed flow ditch, 3---row's seepage well, 2,6---horizontal mixed flow ditch, horizontal drain system, 7---dam slope drainage pipe system, 8---packway gutter, 10---toe water seepage drainage mattress pad, 11---rubble concrete sand blocking dam, 12---gutter at the bottom of dam, 13---row's seepage well base, 14---row's seepage well piping; In accompanying drawing 1, the projection of capillary drain system is blocked.
Description
Technical field
The invention belongs to mine technology field
Background technology
Domestic and international without similar technology report and practical precedent at present; Because traditional tailing lacks water seepage drainage facility, cause the long-term storage of precipitation pools zone, retaining makes tailing dam bottom be in infiltration saturation state for a long time, and stability reduces; Retaining makes stock's tailings of phreatic line bottom be in liquefaction, forms materials of debris flow source; When running into the interference of some factor, easily cause dam break and mud-stone flow disaster; The object of the invention is to make Tailings Slurry with discharge with dehydration, Tailings Dam anhydrous operation, dam body is without infiltration, and tailings is without liquefaction, and tailing water water quality after diafiltration is clean, can reuse; Thus realize saving, cleaning and safety in production.
Summary of the invention
The present invention is on the basis of traditional tailing, Tailings Dam base plate sets up longitudinal mixed flow ditch 1, horizontal mixed flow ditch 2, capillary drain system 5, horizontal drain system 6, Tailings Dam dam sets up dam slope drainage pipe system 7, rubble concrete sand blocking dam 11, and row's seepage well 3, row's seepage well piping 14 are set up in Tailings Dam precipitation pools zone; The way of longitudinal mixed flow ditch 1 is: longitudinal mixed flow ditch is in Tailings Dam base plate digging laying, one or more is arranged according to Tailings Dam width, its outer end leads directly to gutter at the bottom of dam by the bottom of rubble concrete sand blocking dam, its inner deepening is to Tailings Dam afterbody, and middle and horizontal mixed flow ditch, horizontal drain system are connected; Existing gravel body seepage flow in longitudinal mixed flow ditch, have again pipeline runoff, its longitudinal axis will keep hydraulic gradient smoothly; As shown in Figure 3, the specification of section size and the interior non-fine concrete seepage flow pipe laid of ditch, number calculate according to displacement to be determined the form of fracture of longitudinal mixed flow ditch; Non-fine concrete seepage flow pipe is a kind of without sand (micro-sand) microlith aggregate concrete prefabricated pipe, with water intake well filter well tubing seemingly, have water permeability, intensity will meet the demands; The gravel pack surface layer of longitudinal mixed flow ditch will tightly cover permeable geotextiles, and the several water quality requirement according to tailings fineness and discharge of mesh order of geotextiles is determined, covers pressure on permeable geotextiles and buries a small amount of native stone and fix; The way of horizontal mixed flow ditch 2 is: the head end of horizontal mixed flow ditch is communicated with longitudinal mixed flow ditch by mixed flow raceway groove Connection Block, and keeps suitable hydraulic gradient, and its tail end is closed at suitable position gravel and geotextiles; The gravel pack body of horizontal mixed flow ditch and longitudinal mixed flow ditch junction will tightly cover permeable geotextiles, and prevent sand, connected mode as shown in Figure 5; Horizontal mixed flow ditch is mainly arranged in Tailings Dam precipitation pools zone lower raft, and other positions ooze needs according to row and landform camera is arranged; The form of fracture of horizontal mixed flow ditch and way and longitudinal mixed flow ditch similar, the non-fine concrete seepage flow pipe of laying is generally one; Horizontal mixed flow ditch is connected by arranging seepage well base with row's seepage well, as shown in Figure 6; Horizontal mixed flow ditch and the connection of capillary drain system are that the permeable geotextiles of gravel pack body connected sum covers and is communicated with; The way of horizontal drain system 6 is: horizontal drain system traverses Tailings Dam base plate paving, with longitudinal mixed flow ditch orthogonal or oblique; Horizontal drain system must lay more than two at tailing dam dam foundation position, and spacing is not more than 30 meters, and other positions are oozed by row to be needed to select favourable low-lying physical features camera to lay; As shown in Figure 4, its width is generally not less than 5 meters or determined by row's seepage quantity calculation to the form of fracture of horizontal drain system, and it axially will keep the suitable gradient to longitudinal mixed flow ditch water discharge; Horizontal drain system is that ditch body is communicated with, gravel obturator is communicated with, permeable geotextiles covers and is communicated with the connected mode of longitudinal mixed flow ditch; The way of capillary drain system 5 is: capillary drain system is arranged at random according to base plate physical features, and be intended to supplement and dredge base plate seepage flow ponding, its form of fracture is identical with horizontal drain system, and just section is less; Capillary drain system covers by the permeable geotextiles of gravel pack body connected sum the mode be communicated with and is connected with horizontal mixed flow ditch, horizontal drain system; The way of row's seepage well 3 is: row's seepage well is mainly arranged in the precipitation ponding region of Tailings Dam, and other positions can be arranged by camera, and it combines the main white-out system forming tailing water with horizontal mixed flow ditch, longitudinal mixed flow ditch; Row's seepage well is connected with row's seepage well piping by cross connector, as shown in Figure 8; Row's seepage well, row's seepage well piping and following dam slope drainage pipe system are all a kind of new geomaterials---the blind draining of plastic cement (oozing) is managed, it is combined by the stereoscopic plastic net filling skeleton of liner and permeable geotextiles overcoat, and all size pipeline producer all stock in hand sells; The specifications section of row's seepage well is calculated by required row's milliosmolarity to be determined; Row's seepage well will be kept above 1 ~ 2 meter, ponding face in Tailings Dam pools zone, because well body is flexible, sets up support fix with simple and easy bamboo pole or pin; The way of row's seepage well piping 14 is: the blind draining of plastic cement (oozing) pipe of row's seepage well piping different size and four-way connector composition comb pectination drainage pipe system, as shown in Figure 8; The arm of row's seepage well piping will keep the drainage grade that slightly tilts to main pipe, main pipe between row's seepage well; The spacing of row's seepage well piping levels is determined according to the transmission coefficient of precipitation pools zone tailings; The way of dam slope drainage pipe system 7 is: the blind draining of plastic cement (oozing) pipe of dam slope drainage pipe system different size and four-way connector composition comb pectination drainage pipe system, as shown in Figure 7; The main pipe of dam slope drainage pipe system keeps to the dam slope low dip gradient, and is extended to packway gutter; The length that dam slope drainage pipe system is inwardly stretched by dam slope is generally not less than 30 meters; Dam slope drainage pipe ties up to tailing dam bottom and wants every layer of packway to arrange one deck or two-layer, can not arrange close to during final dam crest; The way of rubble concrete sand blocking dam 11 is: rubble concrete sand blocking dam traverses tailing dam toe, and go directly dam abutment drain dyke at two ends; The permeable rubble concrete of rubble concrete sand blocking dam is built, and both can arrange and ooze, again can sand block; The building process of above-mentioned row's seepage well, dam slope drainage pipe system, row's seepage well piping is: upwards increase section by section with Tailings Dam lifting, successively lay; The drainage of anhydrous Tailings Dam oozes mechanism and is: seepage flow is always to the minimum Cavity Flow with no pressure of shortest path, resistance with collect, longitudinal mixed flow ditch that the present invention is arranged, horizontal mixed flow ditch, horizontal drain system, capillary drain system, row's seepage well, row's seepage well piping, dam slope drainage pipe system etc. effectively can receive gravity water in mine tailing and part capillary water, and charge for remittance is discharged outside storehouse, make tailing dam body saturated without infiltration, to make in storehouse tailings without liquefaction, thus Safety of Tailings Dam is run; Filter because tailing water have passed through seepage flow, water base of discharge is cleaned, and can recycle for ore dressing; The requirement of the present invention to the outer guarded drainage of Tailings Dam is: the runoff water source blocking isolating exterior hillside and Tailings Dam upstream, does not make outside body of water enter reservoir area; In storehouse, rainfall can by various drain system systems white-out.
Figure of description illustrates:
Accompanying drawing 1 is Tailings Dam plane projection schematic diagram, marks symbolic significance as follows in figure:
1---longitudinal mixed flow ditch, 2---horizontal mixed flow ditch, 3---row's seepage well, 4---mixed flow raceway groove Connection Block, 5---capillary drain system, 6---horizontal drain system, 7---dam slope drainage pipe system, 8---packway gutter, 9---dam abutment drain dyke, 10---toe water seepage drainage mattress pad, 11---rubble concrete sand blocking dam, 12---gutter at the bottom of dam;
Accompanying drawing 2 is that Tailings Dam indulges perspective view (there is striping centre), marks symbolic significance as follows in figure:
1---longitudinal mixed flow ditch, 3---row's seepage well, 6---horizontal drain system, 7---dam slope drainage pipe system, 8---packway gutter, 10---toe water seepage drainage mattress pad, 11---rubble concrete sand blocking dam, 12---gutter at the bottom of dam, 13---row's seepage well base, 14---row's seepage well piping;
Accompanying drawing 3 is longitudinal mixed flow ditch profiles, and accompanying drawing 4 is that transverse row oozes body section figure, marks symbolic significance as follows in figure:
15---non-fine concrete seepage flow pipe, 18---microlith mortar waterproof bed course, 19---base, 21---gravel (30 ~ 80mm) obturation, 22---permeable geotextiles, 23---microlith (10 ~ 20mm) obturator;
Accompanying drawing 5 is two sections of mixed flow raceway groove Connection Block, marks symbolic significance as follows in figure:
15---non-fine concrete seepage flow pipe, 16---collect cavity, 17---slabstone masonry, 18---microlith mortar waterproof bed course, 19---ground, 20---reinforced concrete cover plate, 21---gravel (30 ~ 80mm) obturation, 22---permeable geotextiles;
Accompanying drawing 6 is two sections of row's seepage well base, marks symbolic significance as follows in figure:
15---non-fine concrete seepage flow pipe, 16---collect cavity, 17---slabstone masonry, 18---microlith mortar waterproof bed course, 19---ground, 21---gravel (30 ~ 80mm) obturation, 22---permeable geotextiles, 24---the reinforced concrete cover plate of band tube connector, 25---tube connector, 26---binding strap, 27---bamboo timbering, 28---stereoscopic plastic net filling skeleton;
Accompanying drawing 7 is schematic diagrames of dam slope drainage pipe system, and accompanying drawing 8 is schematic diagrames of row's seepage well piping, marks symbolic significance as follows in figure:
3---row's seepage well, 7---dam slope drainage pipe system, 8---packway gutter, 14---row's seepage well piping, 29,30,31---all size four-way connector, 32,33,34,35---the blind draining of all size plastic cement (oozing) is managed.
Claims (1)
1. save a construction method for the anhydrous Tailings Dam of clean and safe, its technical characteristic is:
On the basis of traditional tailing, Tailings Dam base plate sets up longitudinal mixed flow ditch, horizontal mixed flow ditch, capillary drain system, horizontal drain system, Tailings Dam dam sets up dam slope drainage pipe system, rubble concrete sand blocking dam, and row's seepage well, row's seepage well piping are set up in Tailings Dam precipitation pools zone; The way of longitudinal mixed flow ditch is: longitudinal mixed flow ditch is in Tailings Dam base plate digging laying, one or more is arranged according to Tailings Dam width, its outer end leads directly to gutter at the bottom of dam by the bottom of rubble concrete sand blocking dam, its the inner extends to Tailings Dam afterbody, and middle and horizontal mixed flow ditch, horizontal drain system are connected; Existing gravel body seepage flow in longitudinal mixed flow ditch, have again pipeline runoff, its longitudinal axis will keep hydraulic gradient smoothly; The way of horizontal mixed flow ditch is: the head end of horizontal mixed flow ditch is communicated with longitudinal mixed flow ditch by mixed flow raceway groove Connection Block, and keeps suitable hydraulic gradient, and its tail end is closed at suitable position gravel and geotextiles; The gravel pack body of horizontal mixed flow ditch and longitudinal mixed flow ditch junction will tightly cover permeable geotextiles, prevents sand; Horizontal mixed flow ditch is mainly arranged in Tailings Dam precipitation pools zone lower raft, and other positions ooze needs according to row and landform is arranged; Horizontal mixed flow ditch is connected by arranging seepage well base with row's seepage well; Horizontal mixed flow ditch and the connection of capillary drain system are that the permeable geotextiles of gravel pack body connected sum covers and is communicated with; The way of horizontal drain system is: horizontal drain system traverses Tailings Dam base plate paving, with longitudinal mixed flow ditch orthogonal or oblique; Horizontal drain system must lay more than two at Tailings Dam dam foundation position, and spacing is not more than 30 meters, and other positions are oozed by row to be needed to select favourable low-lying physical features to lay; Horizontal drain system is that ditch body is communicated with, gravel obturator is communicated with, permeable geotextiles covers and is communicated with the connected mode of longitudinal mixed flow ditch; The way of capillary drain system is: capillary drain system is arranged according to base plate physical features, is intended to supplement and dredges base plate seepage flow ponding; Capillary drain system covers by the permeable geotextiles of gravel pack body connected sum the mode be communicated with and is connected with horizontal mixed flow ditch, horizontal drain system; The way of row's seepage well is: row's seepage well is arranged in the precipitation ponding region of Tailings Dam, and it combines the main white-out system forming tailing water with horizontal mixed flow ditch, longitudinal mixed flow ditch; Row's seepage well is connected with row's seepage well piping by cross connector; Row's seepage well, row's seepage well piping and following dam slope drainage pipe system are all a kind of earth working materials---the blind gutter of plastic cement, and the blind gutter of plastic cement is combined by the stereoscopic plastic net filling skeleton of liner and permeable geotextiles overcoat; The way of row's seepage well piping is: the blind gutter of plastic cement of row's seepage well piping different size and four-way connector composition comb pectination drainage pipe system; The arm of row's seepage well piping will keep the drainage grade that slightly tilts to main pipe, main pipe between row's seepage well; The spacing of row's seepage well piping levels is determined according to the transmission coefficient of precipitation pools zone tailings; The way of dam slope drainage pipe system is: the blind gutter of plastic cement of dam slope drainage pipe system different size and four-way connector composition comb pectination drainage pipe system; The main pipe of dam slope drainage pipe system keeps to the dam slope low dip gradient, and is extended to packway gutter; The way of rubble concrete sand blocking dam is: rubble concrete sand blocking dam traverses Tailings Dam dam toe, and go directly dam abutment drain dyke at two ends; The permeable rubble concrete of rubble concrete sand blocking dam is built, and both can arrange and ooze, again can sand block; Longitudinal mixed flow ditch, horizontal mixed flow ditch, horizontal drain system, capillary drain system, row's seepage well, row's seepage well piping, dam slope drainage pipe system effectively can receive gravity water in mine tailing and part capillary water, and charge for remittance is discharged outside storehouse, make Tailings Dam dam saturated without infiltration, to make in storehouse tailings without liquefaction, thus Safety of Tailings Dam is run; Filter because tailing water have passed through seepage flow, the water of discharge cleans, and can recycle for ore dressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379067.7A CN102644288B (en) | 2011-11-12 | 2011-11-12 | A kind of construction method saving the anhydrous Tailings Dam of clean and safe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379067.7A CN102644288B (en) | 2011-11-12 | 2011-11-12 | A kind of construction method saving the anhydrous Tailings Dam of clean and safe |
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| CN102644288A CN102644288A (en) | 2012-08-22 |
| CN102644288B true CN102644288B (en) | 2016-02-03 |
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| CN201110379067.7A Expired - Fee Related CN102644288B (en) | 2011-11-12 | 2011-11-12 | A kind of construction method saving the anhydrous Tailings Dam of clean and safe |
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| CN103615042B (en) * | 2013-11-28 | 2015-01-14 | 化工部长沙设计研究院 | Network type seepage discharging device in transverse direction, longitudinal direction and vertical direction |
| CN104213627B (en) * | 2014-09-04 | 2016-05-11 | 兰州有色冶金设计研究院有限公司 | A kind of three-dimensional Tailings Dam row is oozed system and row's infiltration method |
| CN104452789A (en) * | 2014-11-27 | 2015-03-25 | 河南省电力勘测设计院 | Homogeneous clay ash dam draining and seeping system |
| CN104480974B (en) * | 2014-12-15 | 2017-02-01 | 中冶长天国际工程有限责任公司 | Reverse seepage drain system suitable for upstream type tailings pond and upstream type tailings pond |
| CN105714759B (en) * | 2016-03-09 | 2018-04-20 | 广东安元矿业勘察设计有限公司 | The row that liquefaction collapse is taken precautions against in urban dregs blends reinforcement means |
| CN106088122A (en) * | 2016-06-03 | 2016-11-09 | 华能伊敏煤电有限责任公司 | Opencut end side infiltration step cuts the comprehensive processing method of row |
| CN105908679B (en) * | 2016-06-24 | 2018-08-28 | 陕西冶金设计研究院有限公司 | A kind of Tailings Dam that repeatable heap takes |
| CN108411850A (en) * | 2018-05-15 | 2018-08-17 | 钟利芬 | A kind of impermeable erosion control water conservancy dam configuration |
| CN110499814A (en) * | 2018-05-17 | 2019-11-26 | 南京梅山冶金发展有限公司 | The row for reducing saturation line of tailings pond buried depth seeps system layer method for arranging |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033016U (en) * | 1988-05-01 | 1989-02-22 | 南昌有色冶金设计研究院 | Bleeding-bailing system with vertical bleeding well and level bleeding pipe |
| CN1037943A (en) * | 1988-05-20 | 1989-12-13 | 唐纳德·斯科特·鲁宾逊 | Improved union |
| CN201330397Y (en) * | 2008-12-31 | 2009-10-21 | 中国冶金矿业鞍山冶金设计研究院有限责任公司 | Elevation and expansion old tailing pond |
| RU2379405C1 (en) * | 2008-11-07 | 2010-01-20 | Государственное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет" | Embankment on frozen soil |
| CN101929197A (en) * | 2010-09-01 | 2010-12-29 | 中冶沈勘工程技术有限公司 | Permeable tailings pond seepage drainage structure |
-
2011
- 2011-11-12 CN CN201110379067.7A patent/CN102644288B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033016U (en) * | 1988-05-01 | 1989-02-22 | 南昌有色冶金设计研究院 | Bleeding-bailing system with vertical bleeding well and level bleeding pipe |
| CN1037943A (en) * | 1988-05-20 | 1989-12-13 | 唐纳德·斯科特·鲁宾逊 | Improved union |
| RU2379405C1 (en) * | 2008-11-07 | 2010-01-20 | Государственное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет" | Embankment on frozen soil |
| CN201330397Y (en) * | 2008-12-31 | 2009-10-21 | 中国冶金矿业鞍山冶金设计研究院有限责任公司 | Elevation and expansion old tailing pond |
| CN101929197A (en) * | 2010-09-01 | 2010-12-29 | 中冶沈勘工程技术有限公司 | Permeable tailings pond seepage drainage structure |
Non-Patent Citations (2)
| Title |
|---|
| 尾矿坝设计中排渗措施的应用;陈明健;《亚热带水土保持》;20060130;第18卷(第04期);第52-53页第1节 * |
| 尾矿库浸润线降低技术研究;方国清等;《西部探矿工程》;20091015(第10期);第125-126页 * |
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