CN103628451A - Impermeable water stopping structure for hydraulic engineering - Google Patents
Impermeable water stopping structure for hydraulic engineering Download PDFInfo
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- CN103628451A CN103628451A CN201310546889.9A CN201310546889A CN103628451A CN 103628451 A CN103628451 A CN 103628451A CN 201310546889 A CN201310546889 A CN 201310546889A CN 103628451 A CN103628451 A CN 103628451A
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Abstract
The invention relates to an impermeable water stopping structure for hydraulic engineering. The impermeable water stopping structure comprises a dam body. One side of the water stopping face of the dam body is provided with a step-shaped dam body impermeable layer extending from the dam top to the dam bottom. A dam foundation impermeable layer is arranged in a dam foundation of the bottom of the dam body. An impermeable connecting layer is arranged between the dam foundation impermeable layer and the step-shaped dam body impermeable layer. The dam foundation impermeable layer is of a combined structure comprising a concrete impermeable wall and a grouting curtain. One side of the water stopping face of the dam body is provided with the step-shaped dam body impermeable layer extending from the dam top to the dam bottom, and therefore permeating, washing and wearing of the surface of the dam body from water can be effectively prevented. As the dam foundation impermeable layer is arranged in the dam foundation, the impermeable water stopping structure can effectively prevent seepage of water in a dam, and therefore the impermeability and the durability of the whole dam and the foundation can be ensured.
Description
Technical field
The invention belongs to the technical field of water seepage prevention, in particular, the present invention relates to a kind of impervious watertight structure being applied in rockfill dam project.
Background technology
Dam is that block rivers ditch water flow is with the water retaining structure of heading up or adjust flux.The object of building dam is mainly used in heading up, regulated flow, concentrates head, for flood control, water supply, irrigation, hydroelectric generation, improve shipping etc.The river regulating structure of adjusting in addition river gesture, protection bank bed also claims dam, such as groynes, longitudinal dike and ground sills etc.
Adopt local material to build the construction of dam with a long history, have gather materials on the spot, the advantage such as, easy construction low to Geological Condition Requirement, low cost, be widely adopted, and there is abundant design, construction and operational management experience.Conventionally, the antiseepage of dam comprises Foundation Anti-seepage and dam body seepage.Foundation Anti-seepage normally arranges Foundation Anti-seepage facility in the bottom of dam body and the binding site of the dam foundation, and Foundation Anti-seepage facility forms by being directly built in concrete junction plate, concrete pedestal or concrete toe board etc. on batholith or covering layer basis and impervious wall and grouting body conventionally; Rockfill Dam impervious material extensively adopts calculous soil material, concrete slab, bituminous concrete, geomembrane, geotechnological plant etc., the impervious material of building high loose rock dam selection on deep covering layer is limited, the stress of impervious wall cannot accurately calculate by existing theory, and the antiseepage of the high dam body of material requirements is normally arranged to face slab for water retaining on the upstream face of dam body.And for the anti-ripple wave resistance dykes and dams that arrange in coastal area, also need to face antagonism sea water intrusion and marine organisms adhere to and the problem of the destruction of grow.
Summary of the invention
In order to solve above-mentioned technical problem of the prior art, the object of the present invention is to provide the impervious watertight structure in a kind of hydraulic engineering.
To achieve these goals, the present invention has adopted following technical scheme:
An impervious watertight structure in hydraulic engineering, comprises dam body, in described dam body obstructing surface one side, is provided with the notch cuttype dam body seepage layer at the bottom of extending to dam from dam crest; In the dam foundation of dam body bottom, be provided with seepage prevention of dam founda layer; And be provided with antiseepage articulamentum between described seepage prevention of dam founda layer and notch cuttype dam body seepage layer; Described seepage prevention of dam founda layer is the combining structure of concrete cut and grouted cut off wall.
Wherein, described antiseepage articulamentum is steel concrete toe board, steel concrete junction plate or reinforced concrete plinth.
Technical scheme of the present invention has following beneficial effect compared to existing technology:
The present invention by dam body obstructing surface one side, be provided with notch cuttype dam body seepage layer at the bottom of extending to dam from dam crest can effectively anti-water-stop body to the infiltration on dam body surface, wash away, erosion and corrasion.And the seepage prevention of dam founda layer impervious watertight structure arranging in the dam foundation can prevent the seepage of water in dam effectively.Thereby whole dam and basic barrier properties and durability have been guaranteed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the impervious watertight structure in hydraulic engineering of the present invention.
The specific embodiment
Below with reference to specific embodiment, the impervious watertight structure in hydraulic engineering of the present invention and function are further elaborated, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
embodiment 1
As shown in Figure 1, the impervious watertight structure in the hydraulic engineering described in the present embodiment, is mainly used in the mole dam of coastal area, and it comprises dam body 10, in described dam body 10 obstructing surface one sides, is provided with the notch cuttype dam body seepage layer 20 at the bottom of extending to dam from dam crest; In the dam foundation of dam body bottom, be provided with seepage prevention of dam founda layer 40; And be provided with antiseepage articulamentum 30 between described seepage prevention of dam founda layer 40 and notch cuttype dam body seepage layer 20; Described seepage prevention of dam founda layer 40 is the combining structure of concrete cut 41 and grouted cut off wall 42.Wherein, described antiseepage articulamentum 30 is steel concrete toe board, steel concrete junction plate or reinforced concrete plinth.
Wherein, described dam body seepage layer adopts the concrete material of antiseepage anti scuffing, and described concrete material comprises: the methyl etherified melmac of the quartz sand of 15 ~ 18wt%, the flyash of 12 ~ 18wt%, the gypsum of 5 ~ 8wt%, the micaceous iron oxide of the calcined diatomite of 5 ~ 8wt%, 3 ~ 5wt%, 1.2 ~ 1.5wt%, the cresols phenolic resin varnish type epoxy resin of 0.8 ~ 1.2wt%, the naphthalene water reducer of 0.5 ~ 0.8wt%, the N-TSIM of 0.8 ~ 1.2wt% and the portland cement of surplus.Described concrete material is tested: compressive strength>=58MPa, impact resistance>=17.8KJ/m
2, aging intensity>=48MPa of 800h, impermeability factor>=25.8, anti-impact mill intensity>=10.5hm
2/ Kg.Especially in described concrete material, pass through to add appropriate methyl etherified melmac, cresols phenolic resin varnish type epoxy resin and N-TSIM, by three's synergy, not only can improve the impact resistance of material, and can also significantly improve the corrosion resistance of described material in seawater; Contrast experiment shows concrete material by adding above-mentioned three kinds of components and do not add and compare, and the anti-corrosion coefficient in the Seawater of the coastal region in east China can bring up to 1.02 from 0.85.Visible, above-mentioned concrete material product not only has excellent antiseepage, anti-erosion performance, and the performance of resisting sea water erosion also significantly improves, and is particularly suitable as maritime concrete materials'use.
In addition, in order to prevent that marine organisms are attached to dam body superficial growth, on the concrete material surface of described dam body seepage layer, be also coated with antifouling paint, the thickness of coating is 300-800 μ m.Described antifouling paint comprises: different fluorine that ketone diamines, the silica of 5 ~ 8wt% and the polyurethane elastomer resin of surplus of the urethane-modified epoxy resin of the bisphenol A type epoxy resin of 22 ~ 25wt%, 15 ~ 20wt%, the epoxy modified silicone resin of 15 ~ 20wt%, 3 ~ 5wt%.The cohesive of described antifouling paint and concrete material substrate surface is good, can bring into play for a long time excellent anti-corrosive properties and soil resistance.
Wherein, in order to prevent the reinforcement corrosion in antiseepage articulamentum, and improve its application life.At the rebar surface described in described antiseepage articulamentum, be coated with corrosion resistance coating.The PVP of the cumarone resin that described corrosion resistance coating contains 15 ~ 25wt% methyl acrylate, 15 ~ 20wt%, the bisphenol A type epoxy resin of 12-18wt%, 2.2 ~ 2.5wt%, 0.8-1.5wt% poly-alkoxylation terpenes, the methyl ethyl carbonate of 12 ~ 15wt% and the isopropyl alcohol of surplus.Described corrosion resistance coating can by conventional spraying method for example the method for hot spraying or dynamic spraying spray to the rebar surface after rust cleaning, coating layer thickness is preferably 3 ~ 8mm.Described corrosion resistance coating has excellent weather-proof, water resistance, can be applied to the coastal area that chlorion and sulfate ion concentration are higher, and can resist the adverse circumstances of alternation of wetting and drying.
In certain coastal area, adopt the mole dam (being highly 22.5 meters) that impervious watertight structure of the present invention is built to use over 2 years, dam body surface is still intact, does not occur crackle or obscission, does not also have the observable marine microorganism of naked eyes attached thereto; And there is not exceptional leakage phenomenon in seepage prevention of dam founda articulamentum and seepage prevention of dam founda layer yet.
For the ordinary skill in the art; specific embodiment is just exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (7)
1. the impervious watertight structure in hydraulic engineering, comprises dam body, in described dam body obstructing surface one side, is provided with the notch cuttype dam body seepage layer at the bottom of extending to dam from dam crest; In the dam foundation of dam body bottom, be provided with seepage prevention of dam founda layer; It is characterized in that: between described seepage prevention of dam founda layer and notch cuttype dam body seepage layer, be provided with antiseepage articulamentum; Described seepage prevention of dam founda layer is the combining structure of concrete cut and grouted cut off wall.
2. the impervious watertight structure in hydraulic engineering according to claim 1, is characterized in that: described antiseepage articulamentum is steel concrete toe board, steel concrete junction plate or reinforced concrete plinth.
3. the impervious watertight structure in hydraulic engineering according to claim 1 and 2, it is characterized in that: described dam body seepage layer adopts the concrete material of antiseepage anti scuffing, described concrete material comprises: the quartz sand of 15 ~ 18wt%, the flyash of 12 ~ 18wt%, the gypsum of 5 ~ 8wt%, the calcined diatomite of 5 ~ 8wt%, the micaceous iron oxide of 3 ~ 5wt%, the methyl etherified melmac of 1.2 ~ 1.5wt%, the cresols phenolic resin varnish type epoxy resin of 0.8 ~ 1.2wt%, the naphthalene water reducer of 0.5 ~ 0.8wt%, the N-TSIM of 0.8 ~ 1.2wt% and the portland cement of surplus.
4. the impervious watertight structure in hydraulic engineering according to claim 1 and 2, is characterized in that: at the rebar surface described in described antiseepage articulamentum, be coated with anti-corrosion coating.
5. the impervious watertight structure in hydraulic engineering according to claim 4, is characterized in that: described anti-corrosion coating is 3 ~ 8mm.
6. the impervious watertight structure in hydraulic engineering according to claim 5, is characterized in that: described anti-corrosion coating forms by spraying corrosion resistance coating; And the PVP of the cumarone resin that described corrosion resistance coating contains 15 ~ 25wt% methyl acrylate, 15 ~ 20wt%, the bisphenol A type epoxy resin of 12-18wt%, 2.2 ~ 2.5wt%, 0.8-1.5wt% poly-alkoxylation terpenes, the methyl ethyl carbonate of 12 ~ 15wt% and the isopropyl alcohol of surplus.
7. the impervious watertight structure in hydraulic engineering according to claim 3, is characterized in that: the concrete material surface at described dam body seepage layer is also coated with antifouling paint, and the thickness of coating is 300-800 μ m; Described antifouling paint comprises: different fluorine that ketone diamines, the silica of 5 ~ 8wt% and the polyurethane elastomer resin of surplus of the urethane-modified epoxy resin of the bisphenol A type epoxy resin of 22 ~ 25wt%, 15 ~ 20wt%, the epoxy modified silicone resin of 15 ~ 20wt%, 3 ~ 5wt%.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2568757C1 (en) * | 2014-08-12 | 2015-11-20 | Открытое акционерное общество "Всероссийский научно-исследовательский институт гидротехники имени Б.Е. Веденеева" | Method of creation of waterproof interface of grout cutoff constructed on site with unequal height marks by slurry wall method |
| CN105625264A (en) * | 2016-01-17 | 2016-06-01 | 长春工程学院 | Anti-seepage water-stop structure for hydraulic engineering dam |
| CN105648988A (en) * | 2016-01-11 | 2016-06-08 | 中国电建集团华东勘测设计研究院有限公司 | Stage construction method for perpendicular anti-seepage structure of toe boards of concrete faced rockfill dam |
| CN108951711A (en) * | 2018-09-12 | 2018-12-07 | 中节能大地环境修复有限公司 | A kind of hazardous waste pollution joint vertical divider structure and its construction method for Bed Rock Region |
| CN109629516A (en) * | 2019-01-21 | 2019-04-16 | 岳胜利 | A kind of earth-rock dam deep-base seepage-control water-stopping structure for water conservancy and hydropower project |
| CN109853469A (en) * | 2019-01-31 | 2019-06-07 | 深圳春沐源控股有限公司 | Antiseepage dykes and dams |
| CN112048056A (en) * | 2020-09-11 | 2020-12-08 | 山西华世中瑞新材料有限公司 | Inorganic and organic composite polyurethane grouting reinforcement material for mine and preparation method thereof |
| CN115387369A (en) * | 2022-09-29 | 2022-11-25 | 成都理工大学 | Flexible impervious structure combining impervious wall and curtain grouting and construction method thereof |
| CN115434282A (en) * | 2022-08-31 | 2022-12-06 | 东莞市水利勘测设计院有限公司 | Composite type diaphragm wall for hydraulic engineering and construction method thereof |
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| CN1847309A (en) * | 2005-04-12 | 2006-10-18 | 中国科学院广州化学研究所 | Organosilicon modified carbonyl epoxy composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2568757C1 (en) * | 2014-08-12 | 2015-11-20 | Открытое акционерное общество "Всероссийский научно-исследовательский институт гидротехники имени Б.Е. Веденеева" | Method of creation of waterproof interface of grout cutoff constructed on site with unequal height marks by slurry wall method |
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| CN105648988B (en) * | 2016-01-11 | 2017-10-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of stage construction method of Face Rockfill Dam vertical seepage control structure |
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| CN105625264B (en) * | 2016-01-17 | 2017-11-03 | 长春工程学院 | A kind of hydraulic engineering dyke seepage control water sealing structure |
| CN108951711A (en) * | 2018-09-12 | 2018-12-07 | 中节能大地环境修复有限公司 | A kind of hazardous waste pollution joint vertical divider structure and its construction method for Bed Rock Region |
| CN109629516A (en) * | 2019-01-21 | 2019-04-16 | 岳胜利 | A kind of earth-rock dam deep-base seepage-control water-stopping structure for water conservancy and hydropower project |
| CN109853469A (en) * | 2019-01-31 | 2019-06-07 | 深圳春沐源控股有限公司 | Antiseepage dykes and dams |
| CN112048056A (en) * | 2020-09-11 | 2020-12-08 | 山西华世中瑞新材料有限公司 | Inorganic and organic composite polyurethane grouting reinforcement material for mine and preparation method thereof |
| CN115434282A (en) * | 2022-08-31 | 2022-12-06 | 东莞市水利勘测设计院有限公司 | Composite type diaphragm wall for hydraulic engineering and construction method thereof |
| CN115434282B (en) * | 2022-08-31 | 2023-08-15 | 东莞市水利勘测设计院有限公司 | Composite type impervious wall for hydraulic engineering and construction method thereof |
| CN115387369A (en) * | 2022-09-29 | 2022-11-25 | 成都理工大学 | Flexible impervious structure combining impervious wall and curtain grouting and construction method thereof |
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| CN103628451B (en) | 2016-06-29 |
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Inventor after: Kong Lingmin Inventor after: Li Zhaocui Inventor after: Xi Xiao Inventor after: Zhang Weihua Inventor after: Zhang Nianhua Inventor after: Wang Xuelei Inventor after: Nie Qibing Inventor before: Kong Lingmin Inventor before: Li Zhaocui Inventor before: Ding Zhaosong Inventor before: Chen Liqiang Inventor before: Liang Qidong Inventor before: Nie Qibing |
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Effective date of registration: 20160602 Address after: 276800, Shandong, Rizhao City, Donggang District, the south side of the middle of Xing Hai Road Applicant after: Rizhao Sanlian Water Transfer Co., Ltd. Address before: 276800 Shandong Rizhao City Economic Development Zone Kui mountain street, Daling Village Applicant before: RIZHAO WATER SUPPLY ENGINEERING ADMINISTRATION |
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