CN104652492B - The row of a kind of Tailings Dam cohesive soil initial dam oozes system - Google Patents
The row of a kind of Tailings Dam cohesive soil initial dam oozes system Download PDFInfo
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- CN104652492B CN104652492B CN201510009816.5A CN201510009816A CN104652492B CN 104652492 B CN104652492 B CN 104652492B CN 201510009816 A CN201510009816 A CN 201510009816A CN 104652492 B CN104652492 B CN 104652492B
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- 239000002689 soil Substances 0.000 title claims abstract description 45
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims abstract description 34
- 239000004575 stone Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 201000010041 presbyopia Diseases 0.000 claims abstract description 14
- 229920004933 Terylene® Polymers 0.000 claims abstract description 13
- 239000004746 geotextile Substances 0.000 claims abstract description 13
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 13
- 230000008595 infiltration Effects 0.000 claims abstract description 12
- 238000001764 infiltration Methods 0.000 claims abstract description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 8
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 8
- 239000000440 bentonite Substances 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 10
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 235000010044 Hernandia moerenhoutiana Nutrition 0.000 description 1
- 244000084296 Hernandia moerenhoutiana Species 0.000 description 1
- 241000208202 Linaceae Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
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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)
- Revetment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses the row of a kind of Tailings Dam cohesive soil initial dam and ooze system, it is to be made up of patch slope row's infiltration layer and the combination of leakage water discharge line；Described patch slope row's infiltration layer is laid successively constituted by overlay film sodium-based bentonite waterproof carpet (1), coarse sands layer (2), boulder bed (3), block stone layer (4), described leakage water discharge line is made up of UPVC drain pipe (5), the terylene geotextiles (7) that wraps on UPVC drain pipe end (6) outward, is provided with presbyopia on UPVC drain pipe end (6)；The interior bottom to patch slope row's infiltration layer is laid in described UPVC drain pipe end (6).The present invention row of realization can ooze precipitation function well, can effectively block the seepage flow Source Of Supply of initial dam, guarantee the safety of cohesive soil initial dam, can realize can building during Ba Dui in the early stage builds, there is feature easy to operate, the high and low cost of reliability, being less likely to occur silting in Tailings Dam running, reliability is high, life cycle is long, and the row that can meet Tailings Dam cohesive soil initial dam dam body oozes needs.
Description
Technical field
The present invention relates to a kind of tailings warehouse dam body row and ooze system, the dam body row particularly relating to a kind of cohesive soil initial dam is oozed, and is particularly suitable for use with upper reaches method and piles the Tailings Dam built, it is achieved the dam body row of cohesive soil initial dam is oozed.
Background technology
Tailings Dam is the critical facility in mining production, it is the high-order mud-rock flow dangerous matter sources of an artificial formation, being again environomental pollution source, be one of the major hazard source of non-coal mine, during production run, the stability of tailing dam is of great immediate significance for Mine Safety in Production.Adopt the Tailings Dam of upstream type Tailing dam construction due to less costly, adopt on a large scale in China；Upper reaches method Tailings Dam is made up of initial dam+later stage fill dam, initial dam is generally constructed by building stones or earth material, in building stones scarcity area, conventional earth material carries out heap and builds, although adopting the earth material initial dam built of heap cheap but to easily cause dam seepage line too high due to bad hydraulic permeability, its safety is relatively low and later stage row oozes precipitation difficulty.In recent years, adopt the security incidents such as the upstream type saturation line of tailings pond spilling of cohesive soil initial dam, seepage again and again to occur, directly jeopardize Tailings Dam and periphery structures safety, more likely the people's lives and property safety is caused serious threat with harmonious ecological environment.
Water in Tailings Dam constantly permeates formation seepage flow along the hole between tailings particles to dam body downstream direction, and the piezometric line of steady seepage is called saturation.For the Tailings Dam of upstream type Tailing dam construction, the height of saturation is directly connected to dam stabilization and safety thereof, and in tailing dam, saturation position is more high, and dam stability is more poor, and the probability of earthquake liquefaction is also more big.The design phase just arrange rational initial dam drop row's system of oozing carry out dam body row ooze, reduce the saturation height of its operation phase, to strengthen dam stability, guarantee Safety of Tailings Dam run significant.
Currently for the upstream type Tailings Dam adopting cohesive soil initial dam, the method reducing initial dam saturation conventional mainly has two kinds: a kind of is that the horizontal seepage pipe of the some outsourcing loaded filters of the outer slope laying in dam in the early stage carries out horizontal row and oozes；Another kind is that slope arranges some vertical row seepage wells outside dam in the early stage, adopts gradient and oozes than the material the differed greatly row that carries out catchmenting, thus reducing the purpose of initial dam dam seepage line.
Finding in practical application, measures for draining leakage drops in existing cohesive soil initial dam, and there are the following problems:
(1) existing water seepage drainage facility is arranged in the outer slope of initial dam mostly, and its row is oozed and acted on vertically to limited to the degree of depth with level, and when it plays a role, saturation is already at higher position, and safety of dam body is unfavorable.
(2) existing water seepage drainage facility adopts artificial soil geosynthetics to carry out row to ooze, be susceptible to silting, cause its water seepage drainage effect to be substantially reduced in Tailings Dam running mostly.
(3) existing water seepage drainage facility fails to play the effect blocking seepage flow Source Of Supply, fails to realize essenceization safety.
Summary of the invention
In order to overcome existing Tailings Dam cohesive soil initial dam row to ooze the drawbacks described above that system exists, the present invention provides the row of a kind of Tailings Dam cohesive soil initial dam to ooze system, this row's system of oozing is applied to the row of Tailings Dam cohesive soil initial dam and oozes, having reliability height, lay feature simple, that durability is high, row's milliosmolarity is big, the upstream type Tailings Dam of particularly suitable employing cohesive soil initial dam drops row and oozes needs.
For realizing the above-mentioned purpose of the present invention, the row of a kind of Tailings Dam cohesive soil initial dam of the present invention is oozed system and is realized by the following technical solutions:
The row of a kind of Tailings Dam cohesive soil initial dam of the present invention oozes system, and it is to be made up of the patch slope row's infiltration layer being laid in cohesive soil initial dam inner slope and the leakage water discharge line combination being laid in the cohesive soil initial dam dam foundation；Described patch slope row's infiltration layer is laid successively to direction in storehouse by overlay film sodium-based bentonite waterproof carpet, coarse sands layer, boulder bed, block stone layer autohension soil initial dam inner slope and is constituted, described leakage water discharge line is combined by UPVC drain pipe, outward the terylene geotextiles wrapped on UPVC drain pipe end and constitutes, UPVC drain pipe end is provided with presbyopia, to increase draining；The interior bottom to patch slope row's infiltration layer is laid in described UPVC drain pipe end.Described terylene geotextiles flax silk colligation is firm, and terylene geotextiles plays anti-filter row and oozes effect, it is prevented that leakage sand.
Described UPVC drain pipe is a row, and the spacing between adjacent UPVC drain pipe is 8～12m.
The length of described UPVC drain pipe end presbyopia section is 1.0～2.0m, and the aperture φ of presbyopia is 7～9mm, is advisable with 8mm.
Described presbyopia is pressed blossom type by 60 ° of spacing and is arranged that longitudinal pitch 40～60mm is preferred with 50mm along UPVC drain pipe end.
For increasing water seepage drainage effect, the described coarse sand in coarse sands layer is that the sand that sand boulderet grain content is not more than 25% and the particle diameter content more than 0.5 millimeter exceedes gross mass 50% is constituted；The described cobble in boulder bed is the particle diameter 20～40mm natural pellet without corner angle；Block stone in described block stone layer is that saturated comprcssive strength is not less than 15MPa, the cross section length of side is not less than the stone of 15 centimetres.
The model of described UPVC drain pipe (5) is 110 × 5.0, and the specification of described terylene geotextiles is the one in 200g/, 250g/, 300g/, optionally selectes according to tailings particles thickness, general selection 250g/ terylene geotextiles.
The row of the present invention a kind of Tailings Dam cohesive soil initial dam has the effect that after oozing the system above technical scheme of employing
(1) this row's system of oozing has the advantages that row's milliosmolarity is big, planar arranges to ooze, and can effectively block the seepage flow Source Of Supply of initial dam, it is ensured that the safety of cohesive soil initial dam.
(2) Ba Dui can build during building in the early stage, and has feature easy to operate, the high and low cost of reliability, and the row that can meet Tailings Dam cohesive soil initial dam dam body oozes needs.
(3) mainly adopting natural filtration material to be combined row to ooze, be less likely to occur silting in Tailings Dam running, reliability is high, life cycle is long.
(4) ooze system the row of Tailings Dam cohesive soil initial dam and adopt overlay film sodium-based bentonite waterproof carpet first, meet inflatable more than 25 times of water, form it into the colloid system that uniform stickiness is high and filter loss is low, it is closely knit that lasting imbibition result is that overlay film sodium-based bentonite waterproof carpet reaches self, thus having extraordinary waterproof action.
Accompanying drawing explanation
The row that Fig. 1 is a kind of Tailings Dam cohesive soil initial dam of the present invention oozes system cross section structure schematic diagram；
The row that Fig. 2 is a kind of Tailings Dam cohesive soil initial dam of the present invention oozes system UPVC drain pipe end construction schematic diagram.
Accompanying drawing is labeled as: 1 overlay film sodium-based bentonite waterproof carpet；2 coarse sands layers；3 boulder beds；4 block stone layers；5 UPVC drain pipies；6 UPVC drain pipe ends；7 terylene geotextiles.
Detailed description of the invention
Below in conjunction with drawings and Examples, row's system of oozing of a kind of Tailings Dam cohesive soil initial dam of the present invention is described in further details.
The row of a kind of Tailings Dam cohesive soil initial dam of the present invention as shown in Figure 1 is oozed system cross section structure schematic diagram and finds out in conjunction with Fig. 2, and row's system of oozing of a kind of Tailings Dam cohesive soil initial dam of the present invention is to be made up of the patch slope row's infiltration layer being laid in cohesive soil initial dam inner slope and the leakage water discharge line combination being laid in the cohesive soil initial dam dam foundation.
Described patch slope row's infiltration layer is laid successively to direction in storehouse by overlay film sodium-based bentonite waterproof carpet 1, coarse sands layer 2, boulder bed 3, block stone layer 4 autohension soil initial dam inner slope and is constituted.Overlay film sodium-based bentonite waterproof carpet 1 can significantly improve impervious, the Stabilization of loading end, blocks the seepage flow Source Of Supply of initial dam；Coarse sand in coarse sands layer 2 is that the sand that sand boulderet grain content is not more than 25% and the particle diameter content more than 0.5 millimeter exceedes gross mass 50% is constituted, and layer of sand 2 plays the effect of anti-filter draining, it is ensured that the top fill dam soil body is particle stabilized；Boulder bed 3 adopts particle diameter 20～40mm without the cobble of corner angle, can play transitional function between coarse sand and block stone, it is prevented that leakage sand；Stone in block stone layer 4 adopts saturated comprcssive strength to be not less than 15MPa, the cross section length of side is not less than the block stone of 15 centimetres, and block stone layer 4 can play the effect of pressure slope and bank protection.The interior bottom to patch slope row's infiltration layer is laid in described UPVC drain pipe end 6.Leakage water discharge line plays the effect discharged by leakage water in system.
Here the cross section length of side refers to the 1/4 of the facet outer rim girth in the centre position along stone length direction.
The row of a kind of Tailings Dam cohesive soil initial dam of the present invention as shown in Figure 2 is oozed system UPVC drain pipe end construction schematic diagram and finds out in conjunction with Fig. 1, described leakage water discharge line is to be arranged UPVC drain pipe 5 by one, terylene geotextiles 7 combination wrapped in outward on UPVC drain pipe end 6 is constituted, UPVC drain pipe end 6 is provided with presbyopia, the length of UPVC drain pipe end 6 presbyopia section is 1.0～2.0m, the aperture φ of presbyopia is 7～9mm, it is typically chosen Φ 8mm presbyopia, described presbyopia is pressed blossom type by 60 ° of spacing and is arranged along UPVC drain pipe end 6, longitudinal pitch 40～60mm.The present invention adopts leakage water discharge line, it is possible to strengthen drainability so that in system, leakage water can effectively enter in UPVC drain pipe 5 and discharge.
The model of described UPVC drain pipe 5 is 110 × 5.0, the specification of described terylene geotextiles 7 is the one in 200g/, 250g/, 300g/, optionally select the terylene geotextiles 7 of appropriate size according to tailings particles thickness, terylene geotextiles 7 plays anti-filter row and oozes effect, it is prevented that leakage sand.
The row of a kind of Tailings Dam cohesive soil initial dam of the present invention is oozed the practical application of system and is shown, row's system of oozing of this new Tailings Dam cohesive soil initial dam the row of realization can ooze precipitation function well, can effectively block the seepage flow Source Of Supply of initial dam, guarantee the safety of cohesive soil initial dam, can realize can building during Ba Dui in the early stage builds, there is feature easy to operate, the high and low cost of reliability, silting is less likely to occur Tailings Dam running, reliability is high, life cycle is long, and the row that can meet Tailings Dam cohesive soil initial dam dam body oozes needs.
Claims (4)
1. the row of a Tailings Dam cohesive soil initial dam oozes system, it is characterised in that: it is to be made up of the patch slope row's infiltration layer being laid in cohesive soil initial dam inner slope and the leakage water discharge line combination being laid in the cohesive soil initial dam dam foundation；Described patch slope row's infiltration layer is laid successively to direction in storehouse by overlay film sodium-based bentonite waterproof carpet (1), coarse sands layer (2), boulder bed (3), block stone layer (4) autohension soil initial dam inner slope and is constituted, described leakage water discharge line is combined by UPVC drain pipe (5), outward the terylene geotextiles (7) wrapped on UPVC drain pipe end (6) and constitutes, and is provided with presbyopia on UPVC drain pipe end (6)；The interior bottom to patch slope row's infiltration layer is laid in described UPVC drain pipe end (6)；Described UPVC drain pipe (5) is a row, and the spacing between adjacent UPVC drain pipe (5) is 8～12m；The described coarse sand in coarse sands layer (2) is that the sand that sand boulderet grain content is not more than 25% and the particle diameter content more than 0.5 millimeter exceedes gross mass 50% is constituted；The described cobble in boulder bed (3) is the particle diameter 20～40mm natural pellet without corner angle；The described block stone in block stone layer (4) is that saturated comprcssive strength is not less than 15MPa, the cross section length of side is not less than the stone of 15 centimetres.
2. the row of a kind of Tailings Dam cohesive soil initial dam as claimed in claim 1 oozes system, it is characterised in that: the length of described UPVC drain pipe end (6) presbyopia section is 1.0～2.0m, and the aperture φ of presbyopia is 7～9mm.
3. the row of a kind of Tailings Dam cohesive soil initial dam as claimed in claim 2 oozes system, it is characterised in that: described presbyopia is arranged by blossom type along UPVC drain pipe end (6) by 60 ° of spacing, longitudinal pitch 40～60mm.
4. the row of a kind of Tailings Dam cohesive soil initial dam as claimed in claim 3 oozes system, it is characterized in that: the model of described UPVC drain pipe (5) is 110 × 5.0, the specification of described terylene geotextiles (7) is the one in 200g/, 250g/, 300g/.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009816.5A CN104652492B (en) | 2015-01-09 | 2015-01-09 | The row of a kind of Tailings Dam cohesive soil initial dam oozes system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510009816.5A CN104652492B (en) | 2015-01-09 | 2015-01-09 | The row of a kind of Tailings Dam cohesive soil initial dam oozes system |
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| CN104652492B true CN104652492B (en) | 2016-07-06 |
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| CN104879129B (en) * | 2015-06-05 | 2017-06-16 | 中南大学 | The administering method and its device of stope mud-rock flow in a kind of caved stopes |
| CN108374468B (en) * | 2018-03-07 | 2020-03-31 | 中钢集团马鞍山矿山研究院有限公司 | Method for blocking damage of old flood drainage system of tailing pond |
| 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 |
| CN112921904B (en) * | 2021-01-27 | 2022-03-15 | 中钢集团马鞍山矿山研究总院股份有限公司 | A clay initial dam structure for upstream formula tailing storehouse |
| CN112921905B (en) * | 2021-01-27 | 2022-03-15 | 中钢集团马鞍山矿山研究总院股份有限公司 | Construction method of initial dam suitable for upstream type tailing pond |
| CN113882325A (en) * | 2021-09-01 | 2022-01-04 | 湖北中业天成水利水电工程有限公司 | Rock-fill concrete permeable dam and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100381548B1 (en) * | 1999-12-09 | 2003-04-23 | 주식회사 리폼시스템 | Post-waterproofing management system of concrete structure |
| 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 |
| CN202273236U (en) * | 2011-10-28 | 2012-06-13 | 长沙有色冶金设计研究院有限公司 | Inner dams in karst reservoir |
| CN202830995U (en) * | 2012-10-16 | 2013-03-27 | 中国瑞林工程技术有限公司 | Tailing pond infundibular aven leakage of foundation treatment device |
| CN203145056U (en) * | 2013-02-25 | 2013-08-21 | 北京中非博克科技有限公司 | Geosynthetic clay liner for anti-seepage of tailings pond |
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 No. 666, Xitang Road, Ma'anshan economic and Technological Development Zone, Anhui, China Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |