CN106193129A - Tailings Dam percolate pump drainage system and construction method thereof - Google Patents

Tailings Dam percolate pump drainage system and construction method thereof Download PDF

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Publication number
CN106193129A
CN106193129A CN201610728848.5A CN201610728848A CN106193129A CN 106193129 A CN106193129 A CN 106193129A CN 201610728848 A CN201610728848 A CN 201610728848A CN 106193129 A CN106193129 A CN 106193129A
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China
Prior art keywords
storage pool
tailings dam
percolate
dam
drainage system
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CN201610728848.5A
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CN106193129B (en
Inventor
吴先勇
陈意
魏群
权振龙
肖红
阎明
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SHANGHAI (GROUP) HOLDING Corp FOR FOREIGN ECONOMIC & TECHNOLOGICAL COOPERATION
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SHANGHAI (GROUP) HOLDING Corp FOR FOREIGN ECONOMIC & TECHNOLOGICAL COOPERATION
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Revetment (AREA)

Abstract

The invention discloses a kind of Tailings Dam percolate pump drainage system, belong to mine capital construction construction field.The Tailings Dam percolate pump drainage system that the present invention provides includes storage pool, be connected with storage pool and lay radially drainage pipe, the water pump that is arranged in storage pool, percolate is collected by described drainage pipe, and come together in described storage pool, by described water pump, percolate is discharged, the present invention has easy construction, Stability Analysis of Structures, advantage with low cost, and solves the difficult problem that percolate under Tailings Dam impervious barrier is difficult to discharge.The invention also discloses the construction method of a kind of Tailings Dam percolate pump drainage system.

Description

Tailings Dam percolate pump drainage system and construction method thereof
Technical field
The present invention relates to a kind of Tailings Dam percolate pump drainage system and construction method thereof, belong to mine capital construction construction field.
Background technology
Tailings Dam, by building a dam or exclosure mode is constituted, is to store up metal or non-metal mine mine tailing or other works The place of industry waste residue.Enter from ore dressing plant and the mine tailing of Tailings Dam often contains toxicant or heavy metal ion, for avoiding containing Poisonous and harmful substances polluted underground water, must lay antiseepage film in Tailings Dam and do Anti-seeping technology.
In reality, the large area antiseepage film laid in Tailings Dam, it is understood that there may be manufacturing defect, transport breakage and welding are broken Bad, cutting damage, ground pierce through the multiple factors causing antiseepage film generation seepage such as destruction, and, the mine period of service is the longest, oozes Leakage position is the most, and percolate is spread to deeper inside and Tailings Dam surrounding by bottom Tailings Dam, inevitably polluted underground water Body and surrounding enviroment.Accordingly, it would be desirable to the percolate under film is collected and outer row in time.Seepage tends to occur at mine tailing After accumulation, antiseepage film stress, but, Tailings Dam is piled up substantial amounts of mine tailing, brings difficulty to percolate pump drainage.
At present, conventional leakage of leachate detection and pump drainage method are subsoil water detection method.Subsoil water detection method is at tail Outside the dam body in storehouse, ore deposit, sump is set, detects antiseepage film whether seepage pump drainage percolate by the water of extraction sump. But, subsoil water detection method has a disadvantage in that owing to being arranged on outside storehouse, finds that the time of seepage has longer delayed;And set The sump quantity put will not be too many, it is impossible to ensureing that percolate is bound to flow into sump, and increase sump quantity, expense is relatively High.Accordingly, it would be desirable to the detection of existing effusion and pump drainage method are improved.
Summary of the invention
The main object of the present invention is to provide a kind of Tailings Dam percolate pump drainage system, by the drainage pipe of radial setting Collect percolate, and come together in storage pool, by water pump, percolate is discharged, solve under Tailings Dam impervious barrier percolate not The difficult problem easily discharged, and there is simple in construction, with low cost, safe and reliable advantage.Meanwhile, present invention also offers a kind of tail The construction method of storehouse, ore deposit percolate pump drainage system, discloses the main points of process control in construction.
For solving above technical problem, the present invention includes following technical scheme:
A kind of Tailings Dam percolate pump drainage system, including,
Storage pool, is arranged in described Tailings Dam under the impervious barrier at hypsography low-lying, meets water against dam body domatic, in order to receive Collection percolate;
Drainage pipe, is positioned under described Tailings Dam impervious barrier, and one end is connected with described storage pool, and the other end is with described storage pool Centered by lay radially, described drainage pipe is arranged at intervals with inlet opening;
Water pump, is arranged in described storage pool, is connected with one end of water pipe, and described water pipe is layed in meeting water of described dam body On domatic, the other end extends to dam crest.
It is preferably, described drainage pipe is coated with gravel or rubble.
Further, described storage pool is reinforced concrete structure.
Further, described storage pool is pyramidal structure, and impervious barrier, internal filler particles thing are laid in bottom.
Being preferably, described particulate matter is gravel or rubble.
Being preferably, described particulate matter is from bottom to top followed successively by medium sand, gravel or rubble, medium sand.
Further, described Tailings Dam percolate pump drainage system also includes conduit, and described conduit is fixedly installed on described dam Body meet water domatic on, one end is stretched in described storage pool, and the other end extends to described dam crest, and described water pump, water pipe are placed in institute State in conduit, the tube wall of the described conduit being positioned at described storage pool is provided with inlet opening.
It is preferably, the tube wall of the described conduit being provided with inlet opening section is enclosed with drainage layer.
It is preferably, described conduit is coated with impervious barrier.
Correspondingly, present invention also offers the construction method of a kind of described Tailings Dam percolate pump drainage system, including such as Lower step:
S1: excavate described storage pool foundation ditch, and the groove needed for described drainage pipe;
S2: lay described storage pool, lay described drainage pipe, and lay described water pump, fixing described water pipe;
S3: lay impervious barrier above described drainage pipe and described storage pool.
Due to the fact that the above technical scheme of employing, be allowed to compared with prior art, have the following advantages that or actively imitate Really: the present invention collects percolate by the drainage pipe of radial setting, and comes together in storage pool, by water pump, percolate is arranged Go out, easy construction, Stability Analysis of Structures, simple to operate, with low cost, solve the difficulty that percolate under Tailings Dam impervious barrier is difficult to discharge Topic.
Accompanying drawing explanation
The floor map of the Tailings Dam percolate pump drainage system that Fig. 1 provides for first embodiment of the invention;
Fig. 2 is along A-A sectional drawing in Fig. 1;
The floor map of the Tailings Dam percolate pump drainage system that Fig. 3 provides for second embodiment of the invention;
Fig. 4 is along B-B sectional drawing in Fig. 3;
Fig. 5 is along C-C sectional drawing in Fig. 3;
The flow chart of the construction method of the Tailings Dam percolate pump drainage system that Fig. 6 provides for third embodiment of the invention.
In figure, label is as follows:
Percolate pump drainage system 100;Storage pool 110;Particulate matter 111;Drainage pipe 120;Water pump 130;Water pipe 131;Antiseepage Layer 140,141,142;Conduit 150;
Dam body 200;Dam body meets water domatic 210;Dam crest 220.
Detailed description of the invention
The Tailings Dam percolate pump drainage system present invention provided below in conjunction with the drawings and specific embodiments and construction party thereof Method is described in further detail.In conjunction with explanation and claims below, advantages and features of the invention will be apparent from.Need explanation , accompanying drawing all uses the form simplified very much and all uses non-ratio accurately, only in order to aid in illustrating originally conveniently, lucidly The purpose of inventive embodiments.
Embodiment one
Refer to Fig. 1 and Fig. 2, wherein the plane of the Tailings Dam percolate pump drainage system 100 that Fig. 1 is provided by the present embodiment Schematic diagram, Fig. 2 is along A-A sectional drawing in Fig. 1.Below in conjunction with Fig. 1, Fig. 2, the main points of the present invention are described further.
Tailings Dam be by build a dam interception the mouth of a valley or exclosure form, Ore is after valuable concentrate is selected in ore dressing plant " waste residue " enters in Tailings Dam.Shown in Fig. 1 and Fig. 2, Tailings Dam percolate pump drainage system 100 includes storage pool 110, row Ooze pipe 120, water pump 130.Wherein, storage pool 110 is positioned at the impervious barrier 140 times at the low-lying place, bottom of Tailings Dam, and near dam body Meet water bottom 200 domatic 210 outside;Drainage pipe 120 is positioned at the impervious barrier 140 times of Tailings Dam, one end and storage pool 110 phase Even, the other end is laid centered by storage pool 110 radially, and drainage pipe 120 is arranged at intervals with inlet opening, and drainage pipe 120 have certain slope, it is simple to percolate imports storage pool 110;Water pump 130, is arranged in storage pool 110, water pump 130 and water One end of pipe 131 connects, and the other end of water pipe 131 extends to dam crest 220.As an example, storage pool 110 therein can use Reinforced concrete structure, in order to increase the bearing capacity of storage pool 110 top board, can also be spaced in storage pool 110 and arrange support Post or gripper shoe, it might even be possible to arrange partition wall, storage pool 110 is divided into multiple cell body being interconnected by partition wall.In order to preferably Collect percolate, drainage pipe 120 is coated with gravel or rubble 121.
The working method of Tailings Dam percolate pump drainage system 100 is: when breakage occurs in the impervious barrier 140 laid in Tailings Dam Time, the liquid in Tailings Dam is entered in the soil under impervious barrier 140 by breakage, and along with increasing of percolate, percolate trickles To the drainage pipe 120 laid radially, being then pooled in storage pool 110, then passing through water pump 130 will through water pipe 131 Percolate is extracted out, and then the composition of detection percolate.This percolate pump drainage system structure is simple, with low cost, safe and reliable, and Can be with life-time service.
Water pump 130 is during life-time service, in fact it could happen that fault, it is therefore desirable to taking-up when arranging pump maintenance is led to Road.It is preferably, as in figure 2 it is shown, Tailings Dam percolate pump drainage system 100 is additionally provided with HDPE conduit 150, preferred embodiment Meeting water on domatic 210 for what, conduit 150 was fixed on dam body 200, one end is stretched in storage pool 110, and the other end extends to dam crest 220, water pump 130, water pipe 131 may be contained within conduit 150.When maintenance, water pump 130 can be taken from conduit 150 by rope Go out.It addition, in order to make the percolate in storage pool 110 enter smoothly in conduit 150, be positioned at the conduit 150 of storage pool 110 Inlet opening it is provided with on tube wall.
Embodiment two
Referring to Fig. 3, Fig. 4 and Fig. 5, the plane of the Tailings Dam percolate pump drainage system 100 that Fig. 3 the present embodiment is provided is shown Be intended to, Fig. 4 be Fig. 3 along B-B sectional drawing, Fig. 5 is that Fig. 3 is along C-C sectional drawing.Below in conjunction with Fig. 3 to Fig. 5 the present embodiment done into One step illustrates.
In conjunction with Fig. 3 to Fig. 5, and seeing figures.1.and.2, Tailings Dam percolate pump drainage system 100 is similar with previous embodiment, All include storage pool 110, drainage pipe 120, water pump 130.And in the set-up mode of conduit 150 and impervious barrier 142 and embodiment one Identical.It is in place of difference: storage pool 110 is vertebral body shape, up big and down small, is equipped with impervious barrier 141 bottom storage pool 110, anti- The junction of the impervious barrier 140 bottom infiltration layer 141 and Tailings Dam seals and arranges, and central filler particulate matter 111, particulate matter 111 was both Can play a supporting role the impervious barrier 140 on top and mine tailing, the gap between particulate matter 111 can accommodate again diafiltration simultaneously Liquid.
In the present embodiment, storage pool 110 is constituted by laying impervious barrier 141 and filler particles thing 111, easy construction, cost Cheap;Conduit 150 is set, such that it is able to taken out by rope by water pump 130, facilitates pump maintenance, water pump can also be protected simultaneously 130 and water pipe 131.
Particulate matter 111 is rubble or gravel.In order to not pierce through impervious barrier 140,141, it is preferred embodiment, particulate matter 111 are from bottom to top followed successively by medium sand, gravel or rubble, medium sand.I.e. between impervious barrier 140,141 and rubble or gravel, it is all provided with It is equipped with medium sand, thus plays the effect of protection impervious barrier 140,141.
Impervious barrier 140 and conduit 150 junction, need to carry out seal approach, can stick with glue knot.Preferred embodiment For, conduit 150 covering impervious barrier 142 until dam crest 220, the junction between impervious barrier 140,142 seals and arranges.So may be used Effectively to prevent liquid in Tailings Dam from entering along storage pool 110 along the outer surface of conduit 150.
If after the medium sand in storage pool 110 or rubble are entered conduit 150 by the inlet opening on conduit 150, can be to water pump 130 Causing damage, accordingly, it is preferred that embodiment is, be provided with on the conduit 150 of inlet opening section covering drainage layer, drainage layer can be The tiny fabric of geotextiles or space, filters the percolate in storage pool 110, prevents particulate matter 111 from entering conduit 150, from And protect water pump 130.
Embodiment three
Refer to the flow chart of the construction method of the Tailings Dam percolate pump drainage system that Fig. 6, Fig. 6 provide for the present embodiment. In conjunction with Fig. 1 to Fig. 6, the construction method of 6 pairs of Tailings Dam percolate pump drainage systems is described further.This construction method includes as follows Step:
S1: the groove needed for the foundation ditch of excavation storage pool 110 and drainage pipe 120.At low-lying place, the bottom of Tailings Dam, and Meet water bottom the dam body 200 domatic 210 outside, the foundation ditch of excavation storage pool 110.Drainage pipe 120 one end and storage pool 110 Being connected, the other end is laid centered by storage pool 110 radially, and therefore, the groove of drainage pipe 120 also with storage pool 110 is Center is laid radially, and connects with storage pool Ji110Keng.
S2: storage pool 110 and drainage pipe 120 are set, and lay water pump 130, water pipe 131.
When storage pool 110 is reinforced concrete structure, after excavation pit, can by formwork erection, cast-in-place by the way of pour and deposit Reservoir 110, it is possible to prefabricated storage pool 110 is directly placed into foundation ditch.Then lay drainage pipe 110, placement water pump 130, fix Water pipe 131, and lay drainage pipe 120, drainage pipe 120 groove is filled rubble or gravel.When being provided with conduit 150, also Lay conduit 150.
When storage pool 110 is made up of impervious barrier 141 and particulate matter 111, first foundation ditch is carried out leveling, then lay Bottom impervious barrier 141, arranges water pump 110, fixing water pipe 131, filler particles thing 111, and lays drainage pipe 120, at drainage pipe 120 grooves are filled rubble or gravel.
S3: lay impervious barrier 140 above drainage pipe 120 and storage pool 110.Impervious barrier 142 is set outside conduit 150 Time, and lay impervious barrier 142 together.In the present invention, the raw material of impervious barrier 140,141,142 can be: concrete-polymer, drip Green grass or young crops-polymer, synthetic rubber and thermoplastic plastic's film etc..Wherein, thermoplastic plastic's film can be: polrvinyl chloride (PVC), chlorine sulphonyl Change polyethylene (Hypalon), chlorinated polyethylene (CPE), plasticized polyolefin (EP) and high density polyethylene (HDPE) (HDPE) etc..Thermoplasticity The laying of plastic film bed course should extend from bottom to a high position, the tightlyest the most easy-to-draw, should leave the remaining width of 1%~2%, in case local Sinking to stretching, adjacent two width should overlap more than 1m.
In sum, in technical scheme disclosed by the invention, in Tailings Dam, lay drainage pipe 120 radially, permissible Effectively collect and leaked out to the percolate in soil by the impervious barrier 140 of Tailings Dam, and percolate is collected to the storage pool being connected In 110, by the region that water pump 130 pump drainage to dam crest is predetermined, thus realize the detection to percolate and pump drainage, simple in construction, With low cost, safe and reliable.The invention also discloses the storage pool 110 of various structures form, armored concrete can be used prefabricated Part, reduces site operation amount;May be used without arranging impervious barrier 141, the form of filler particles thing 111, gather materials on the spot, low cost Honest and clean.In the present invention, by arranging conduit 150, protect water pump 130, water pipe 131, the most also can when water pump 130 needs repairing, As the passage taking out water pump 130.The invention also discloses the construction method of Tailings Dam percolate pump drainage system, construct succinctly, Main points are distinct.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, this Any change that the those of ordinary skill in bright field does according to the disclosure above content, modification, belong to the protection of claims Scope.

Claims (10)

1. a Tailings Dam percolate pump drainage system, it is characterised in that include,
Storage pool, is arranged in described Tailings Dam under the impervious barrier at hypsography low-lying, meets water against dam body domatic, ooze in order to collect Filtrate;
Drainage pipe, is positioned under described Tailings Dam impervious barrier, and one end is connected with described storage pool, during the other end with described storage pool is The heart is laid radially, and described drainage pipe is arranged at intervals with inlet opening;
Water pump, is arranged in described storage pool, is connected with one end of water pipe, and it is domatic that described water pipe is layed in meeting water of described dam body On, the other end extends to dam crest.
2. Tailings Dam percolate pump drainage system as claimed in claim 1, it is characterised in that be coated with gravel on described drainage pipe Or rubble.
3. Tailings Dam percolate pump drainage system as claimed in claim 1, it is characterised in that described storage pool is armored concrete Structure.
4. Tailings Dam percolate pump drainage system as claimed in claim 1, it is characterised in that described storage pool is vertebral body structure, Impervious barrier, internal filler particles thing are laid in bottom.
5. Tailings Dam percolate pump drainage system as claimed in claim 4, it is characterised in that described particulate matter is gravel or broken Stone.
6. Tailings Dam percolate pump drainage system as claimed in claim 4, it is characterised in that described particulate matter is the most successively For medium sand, gravel or rubble, medium sand.
7. the Tailings Dam percolate pump drainage system as described in any one of claim 1 to 6, it is characterised in that described Tailings Dam oozes Filtrate evacuation system also includes conduit, described conduit be fixedly installed on described dam body meet water domatic on, one end stretch into described in deposit In reservoir, the other end extends to described dam crest, and described water pump, water pipe are placed in described conduit, are positioned at the institute of described storage pool State and on the tube wall of conduit, be provided with inlet opening.
8. Tailings Dam percolate pump drainage system as claimed in claim 7, it is characterised in that be provided with described in the section of inlet opening and lead Drainage layer it is enclosed with on the tube wall of pipe.
9. Tailings Dam percolate pump drainage system as claimed in claim 7, it is characterised in that be coated with antiseepage on described conduit Layer.
10. the construction method of the Tailings Dam percolate pump drainage system as described in claim 1 to 7 is arbitrary, it is characterised in that include Following steps:
S1: excavate described storage pool foundation ditch, and the groove needed for described drainage pipe;
S2: lay described storage pool, lay described drainage pipe, and lay described water pump, fixing described water pipe;
S3: lay impervious barrier above described drainage pipe and described storage pool.
CN201610728848.5A 2016-08-26 2016-08-26 Tailings Dam percolate pump drainage system and its construction method Active CN106193129B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114451092A (en) * 2022-02-24 2022-05-10 昆明理工大学 Method for constructing and greening copper tailing pond in arid region
CN114718101A (en) * 2022-04-29 2022-07-08 中冶长天国际工程有限责任公司 Seepage interception structure of tailing pond of seepage interception wall combined dewatering well and construction method thereof

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JPH08333793A (en) * 1995-06-08 1996-12-17 Ohbayashi Corp Alarm type drainage construction method
CN202099865U (en) * 2010-12-24 2012-01-04 天津合佳威立雅环境服务有限公司 Leachate drainage system for hazardous waste safety landfill
CN103266633A (en) * 2013-06-04 2013-08-28 贵州遵义汇兴铁合金有限责任公司 Seepage-proof sewage discharging and floodwater draining method for tailing reservoir in wet metallurgy
CN104831758A (en) * 2015-05-06 2015-08-12 河海大学 Tailing piling and storing system and method for reducing environment pollution
CN205100358U (en) * 2015-11-20 2016-03-23 中国电建集团贵阳勘测设计研究院有限公司 Tailing pond field sealing and flood discharging ditch structure
CN206090641U (en) * 2016-08-26 2017-04-12 上海外经集团控股有限公司 Tailing storehouse filtration liquid extraction system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08333793A (en) * 1995-06-08 1996-12-17 Ohbayashi Corp Alarm type drainage construction method
CN202099865U (en) * 2010-12-24 2012-01-04 天津合佳威立雅环境服务有限公司 Leachate drainage system for hazardous waste safety landfill
CN103266633A (en) * 2013-06-04 2013-08-28 贵州遵义汇兴铁合金有限责任公司 Seepage-proof sewage discharging and floodwater draining method for tailing reservoir in wet metallurgy
CN104831758A (en) * 2015-05-06 2015-08-12 河海大学 Tailing piling and storing system and method for reducing environment pollution
CN205100358U (en) * 2015-11-20 2016-03-23 中国电建集团贵阳勘测设计研究院有限公司 Tailing pond field sealing and flood discharging ditch structure
CN206090641U (en) * 2016-08-26 2017-04-12 上海外经集团控股有限公司 Tailing storehouse filtration liquid extraction system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114451092A (en) * 2022-02-24 2022-05-10 昆明理工大学 Method for constructing and greening copper tailing pond in arid region
CN114718101A (en) * 2022-04-29 2022-07-08 中冶长天国际工程有限责任公司 Seepage interception structure of tailing pond of seepage interception wall combined dewatering well and construction method thereof

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