CN102926574B - Seepage-proofing method of underwater reservoir and underwater reservoir with seepage-proofing function - Google Patents
Seepage-proofing method of underwater reservoir and underwater reservoir with seepage-proofing function Download PDFInfo
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- CN102926574B CN102926574B CN201210472743.XA CN201210472743A CN102926574B CN 102926574 B CN102926574 B CN 102926574B CN 201210472743 A CN201210472743 A CN 201210472743A CN 102926574 B CN102926574 B CN 102926574B
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- roller compacted
- seepage
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 48
- 239000011382 roller-compacted concrete Substances 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 16
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims abstract description 4
- 239000003673 groundwater Substances 0.000 claims description 51
- 239000002689 soil Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000010881 fly ash Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 150000003841 chloride salts Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- -1 Admixture Substances 0.000 description 1
- 229920001732 Lignosulfonate Chemical class 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical class C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000004884 grey matter Anatomy 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000007785 strong electrolyte Substances 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The invention discloses a seepage-proofing method of an underwater reservoir and an underwater reservoir with a seepage-proofing function, wherein the method comprises the following steps: step a, paving impervious concrete on a rock stratum at the reservoir bottom; step b, paving roller compacted concrete on the side wall of the reservoir; step c, paving a first impermeable geomembrane on the roller compacted concrete; step d, paving normal concrete on the first impermeable geomembrane; step e, paving a second impermeable geomembrane on the top of the reservoir; and step f, paving smolmitza on the second impermeable geomembrane. By paving the impervious concrete on the bottom of the reservoir, paving the roller compacted concrete, the first impermeable geomembrane and the normal concrete on the side wall of the reservoir, and paving the second impermeable geomembrane and smolmitza on the top of the reservoir, the water seepage is effectively avoided, and the water quality is protected.
Description
Technical field
The present invention relates to coal mining groundwater reservoir construction technique, relate in particular to a kind of anti-permeation method of groundwater reservoir and there is the groundwater reservoir of antiseepage function.
Background technology
In coal mining, groundwater resources are stored in the open, build groundwater reservoir, by pumping conduit, in future, realize application, for water conservation, realize coal Sustainable Exploitation significant.
But owing to there is gap between the rock in rock stratum, can there is the phenomenon that outwards seeps water, waste water resource in existing groundwater reservoir.Outside water also can infiltrate by reservoir sidewall and reservoir top simultaneously, affects water quality.
Summary of the invention
The invention provides a kind of anti-permeation method of groundwater reservoir and there is the groundwater reservoir of antiseepage function, to solve the easily problem of infiltration of existing groundwater reservoir, saving water resource, protection water quality.
The invention provides a kind of anti-permeation method of groundwater reservoir, wherein, comprise the steps:
Impervious concrete is established on step a, the upper berth, rock stratum bottom reservoir;
Step b, on the sidewall of reservoir, lay roller compacted concrete;
Step c, on described roller compacted concrete, lay the first anti-seepage geomembrane;
Steps d, on described the first anti-seepage geomembrane, lay normal concrete;
Step e, in the cap rock layer of a reservoir side outwardly, lay the second anti-seepage geomembrane;
Step f, on described the second anti-seepage geomembrane, lay smolmitza.
The anti-permeation method of groundwater reservoir as above, wherein, preferably, before laying roller compacted concrete, also comprises on the sidewall of reservoir:
In roller compacted concrete, mix flyash or gangue.
The anti-permeation method of groundwater reservoir as above, wherein, preferably: when environment temperature is during lower than 0 ℃, in roller compacted concrete and normal concrete, mix air entraining agent.
The anti-permeation method of groundwater reservoir as above, wherein, preferably: when environment temperature is during lower than-5 ℃, in roller compacted concrete and normal concrete, mix antifreezing agent.
The present invention also provides a kind of groundwater reservoir with antiseepage function, and described groundwater reservoir consists of basal bed, sidewall and cap rock layer, wherein: on described basal bed, be equipped with impervious concrete; On described sidewall, be equipped with successively roller compacted concrete, the first anti-seepage geomembrane and normal concrete; A described cap rock layer side is outwardly equipped with the second anti-seepage geomembrane and smolmitza successively.
The groundwater reservoir with antiseepage function as above, wherein, preferably: the soil thickness of described impervious concrete is 20-50cm.
The groundwater reservoir with antiseepage function as above, wherein, preferably: the soil thickness of described impervious concrete is 40cm.
The groundwater reservoir with antiseepage function as above, wherein, preferably: described the first anti-seepage geomembrane is 3 to 5 layers.
The anti-permeation method with the groundwater reservoir of antiseepage function as above, wherein, preferably: the gross thickness of described multilayer the first anti-seepage geomembrane is not less than 0.5mm.
The groundwater reservoir with antiseepage function as above, wherein, preferably: the soil thickness of described normal concrete is 20-50cm.
The groundwater reservoir with antiseepage function as above, wherein, preferably: the soil thickness of described normal concrete is 30cm.
The anti-permeation method of groundwater reservoir provided by the invention and the groundwater reservoir with antiseepage function are by laying impervious concrete in reservoir bottom; at reservoir sidewall, lay roller compacted concrete, the first anti-seepage geomembrane and normal concrete; at reservoir top, lay the method for the second anti-seepage geomembrane and smolmitza; effectively avoid water infiltration, protected water quality.
Accompanying drawing explanation
The anti-permeation method schematic flow sheet of the groundwater reservoir that Fig. 1 provides for the embodiment of the present invention.
The base structure schematic diagram of the groundwater reservoir with antiseepage function that Fig. 2 provides for the embodiment of the present invention;
The side wall construction schematic diagram of the groundwater reservoir with antiseepage function that Fig. 3 provides for the embodiment of the present invention;
The top structure schematic diagram of the groundwater reservoir with antiseepage function that Fig. 4 provides for the embodiment of the present invention.
The specific embodiment
The anti-permeation method schematic flow sheet of the groundwater reservoir that Fig. 1 provides for the embodiment of the present invention, the invention provides a kind of anti-permeation method of groundwater reservoir, comprising following steps:
Impervious concrete is established on step a, the upper berth, rock stratum bottom reservoir.Wherein, impervious concrete refers to and has added impervious material as the concrete of villaumite or triethanolamine.
In this step, utilize paver to carry out the laying of impervious concrete, wherein can analyze the basal bed of groundwater reservoir, in the region that need to carry out antiseepage, do above-mentioned laying work, and without bottom of the reservior All Ranges is all implemented.The soil thickness that impervious concrete is laid is 20-50cm preferably, wherein take 40cm as best.
Step b, on the sidewall of reservoir, lay roller compacted concrete.
Roller compacted concrete is a kind of concrete of dry poor-water mud, the harsh concrete without slump being become by the coarse aggregate mixing of portland cement, volcano grey matter admixture, water, Admixture, sand and grading control.During laying, adopt transportation and the making equipment identical with rock fill dam construction, for example groover, uses vibrating roller compaction in layers, and its laying process belongs to Vertical PE Extending Technology.Roller compacted concrete has advantages of that intensity is high, quick, cost is low, and can in roller compacted concrete, add appropriate flyash or gangue, so that mining wastes recycles.
Step c, on roller compacted concrete, lay the first anti-seepage geomembrane.
In this step, can lay 3 to 5 layers of the first anti-seepage geomembranes, guarantee that multilayer geomembrane gross thickness is not less than 0.5mm, so that its antiseepage interaction energy continues at least more than 20-50.It is the waterproof complex flexible felt of Xd-103 that the first anti-seepage geomembrane can be selected model, also can select pitch glass fabric malthoid, PE antiseepage film, PE composite geo-membrane or the soft felt of glass etc.
Steps d, on the first anti-seepage geomembrane, lay normal concrete.
In this step, the soil thickness that normal concrete is laid is 20-50cm preferably, wherein take 30cm as best.
Normal concrete refers to common concrete, does not add the materials such as impervious material.
Step e, in the cap rock layer of a reservoir side outwardly, lay the second anti-seepage geomembrane.Choosing of the second anti-seepage geomembrane is identical with the first anti-seepage geomembrane, does not repeat them here.
After the sidewall of reservoir being completed to antiseepage laying, can carry out backfill to open coal mine.After backfill, groundwater reservoir forms.Now in order to prevent that surface water from infiltrating in reservoir, water quality is exerted an influence, carry out the operation of step e.Reservoir top is first carried out smooth, smooth rear laying the second anti-seepage geomembrane.
Concrete smooth and laying process is according to < < PE geomembrane anti-seepage engineering construction standard > >, take PE geomembrane as example, the laying of bale PE geomembrane can adopt tractor, the machineries such as hoist engine, when there is no the situation of the said equipment or adopt wisp PE film, also can adopt artificial laying, domatic laying unfolds from top, slope at the bottom of slope gradually with hoist engine, Po Ding He Po bottom, finally imbeds fixedly ditch.
Step f, on the second anti-seepage geomembrane, lay smolmitza.
Smolmitza layer can protect the second anti-seepage geomembrane by follow-up backfill material, not damaged.
Sometimes the exploitation of open coal mine is positioned at severe cold area, so environment temperature proposes higher requirement to the concrete laying work of reservoir sidewall.In environment temperature, during lower than 0 ℃, preferably, in roller compacted concrete and normal concrete, mix air entraining agent, to improve concrete frost resistance, impermeability and corrosion resistance.In environment temperature, during lower than-5 ℃, preferably, in roller compacted concrete and normal concrete, mix antifreezing agent.The kind of above-mentioned air entraining agent comprises: abietate, alkylaryl sulfonate, lignosulfonate salt and oil hydrochlorate etc.Antifreezing agent can adopt as strong electrolyte inorganic salts (chloride salt, villaumite resistance rust class, without chloride salt), water-soluble organic compounds class, organic compound and inorganic salts complex class or compound antifreezing agent.
After concrete has been laid, should with heat insulating materials such as straw mattress or plastic sheetings, to the concrete surface being exposed, be incubated immediately, prevent the crack that very cold causes.
The base structure schematic diagram of the groundwater reservoir with antiseepage function that Fig. 2 provides for the embodiment of the present invention, the side wall construction schematic diagram of the groundwater reservoir with antiseepage function that Fig. 3 provides for the embodiment of the present invention, the top structure schematic diagram of the groundwater reservoir with antiseepage function that Fig. 4 provides for the embodiment of the present invention.
Referring to Fig. 2 to Fig. 4, the embodiment of the present invention also provides a kind of groundwater reservoir with antiseepage function, this reservoir consists of basal bed 1, sidewall 2 and cap rock layer 3, wherein: on basal bed 1, be equipped with impervious concrete 4, on sidewall 2, be equipped with successively roller compacted concrete 5, the first anti-seepage geomembrane 6 and normal concrete 7; Cap rock layer 3 side is outwardly equipped with the second anti-seepage geomembrane 8 and smolmitza 9 successively.
The anti-permeation method of the groundwater reservoir that the embodiment of the present invention provides and the groundwater reservoir with antiseepage function are by laying impervious concrete in reservoir bottom; at reservoir sidewall, lay roller compacted concrete, the first anti-seepage geomembrane and normal concrete; at reservoir top, lay the method for the second anti-seepage geomembrane and smolmitza; effectively avoid water infiltration, protected water quality.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. an anti-permeation method for groundwater reservoir, is characterized in that, comprises the steps:
Impervious concrete is established on step a, the upper berth, rock stratum bottom reservoir;
Step b, on the sidewall of reservoir, lay roller compacted concrete;
Step c, on described roller compacted concrete, lay the first anti-seepage geomembrane;
Steps d, on described the first anti-seepage geomembrane, lay normal concrete;
Step e, in the cap rock layer of a reservoir side outwardly, lay the second anti-seepage geomembrane;
Step f, on described the second anti-seepage geomembrane, lay smolmitza.
2. the anti-permeation method of groundwater reservoir according to claim 1, is characterized in that, before laying roller compacted concrete, also comprises on the sidewall of reservoir:
In roller compacted concrete, mix flyash or gangue.
3. the anti-permeation method of groundwater reservoir according to claim 1, is characterized in that: when environment temperature is during lower than 0 ℃, in roller compacted concrete and normal concrete, mix air entraining agent.
4. the anti-permeation method of groundwater reservoir according to claim 1, is characterized in that: when environment temperature is during lower than-5 ℃, in roller compacted concrete and normal concrete, mix antifreezing agent.
5. a groundwater reservoir with antiseepage function, described groundwater reservoir consists of basal bed, sidewall and cap rock layer, it is characterized in that: on described basal bed, be equipped with impervious concrete; On described sidewall, be equipped with successively roller compacted concrete, the first anti-seepage geomembrane and normal concrete; A described cap rock layer side is outwardly equipped with the second anti-seepage geomembrane and smolmitza successively.
6. the groundwater reservoir with antiseepage function according to claim 5, is characterized in that: the soil thickness of described impervious concrete is 20-50cm.
7. the groundwater reservoir with antiseepage function according to claim 6, is characterized in that: the soil thickness of described impervious concrete is 40cm.
8. the groundwater reservoir with antiseepage function according to claim 5, is characterized in that: described the first anti-seepage geomembrane is 3 to 5 layers.
9. the groundwater reservoir with antiseepage function according to claim 8, is characterized in that: the gross thickness of described the first anti-seepage geomembrane is not less than 0.5mm.
10. the groundwater reservoir with antiseepage function according to claim 5, is characterized in that: the soil thickness of described normal concrete is 20-50cm.
11. groundwater reservoirs with antiseepage function according to claim 10, is characterized in that: the soil thickness of described normal concrete is 30cm.
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| CN104314164B (en) * | 2014-10-28 | 2016-06-08 | 上海市环境科学研究院 | The antiseepage remodeling method of a kind of livestock and poultry farms in scale sewage storage pool |
| CN104563062B (en) * | 2014-12-22 | 2017-01-11 | 河海大学 | One-dimensional analysis method for under-membrane gas generation of geomembrane anti-seepage plain reservoir |
| CN106759132B (en) * | 2016-12-19 | 2019-07-05 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of underwater concrete panel lash-up recovering method and the tool for clearing up attachment |
| CN109057861B (en) * | 2018-08-28 | 2023-07-04 | 清华大学 | Method for calculating underground reservoir, reservoir water storage body and reservoir capacity of open coal mine |
| CN109650793A (en) * | 2018-12-29 | 2019-04-19 | 青岛冠中生态股份有限公司 | A kind of impervious material and preparation method suitable for iron ore mine library |
| CN113530603A (en) * | 2021-07-19 | 2021-10-22 | 国家能源投资集团有限责任公司 | Construction method of shallow-buried underground reservoir water storage area of strip mine waste dump |
| CN114651611B (en) * | 2022-04-15 | 2023-09-15 | 河南工大设计研究院 | Low-temperature grain storage double-layer wall square silo and silo inlet and outlet method |
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| JP2809105B2 (en) * | 1994-06-22 | 1998-10-08 | 鹿島建設株式会社 | How to build an underground tank |
| CN100458018C (en) * | 2007-10-24 | 2009-02-04 | 吴仲科 | Underground step reservoir and building method thereof |
| CN101463657A (en) * | 2007-12-17 | 2009-06-24 | 贵阳铝镁设计研究院 | Manufacturing method of industrial impounding reservoir |
| CN101581085A (en) * | 2009-05-27 | 2009-11-18 | 中国水电顾问集团华东勘测设计研究院 | Reservoir seepage-proofing geomembrane tiered structure and construction method thereof |
| US8221030B1 (en) * | 2009-07-02 | 2012-07-17 | Versaflex, Inc. | Cover for a liquid reservoir |
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Address after: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: Guoneng Baorixile Energy Co.,Ltd. Patentee after: CHINA University OF MINING AND TECHNOLOGY BEIJING Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: SHENHUA BAORIXILE ENERGY Ltd. Patentee before: CHINA University OF MINING AND TECHNOLOGY BEIJING |
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