CN201033870Y - Hydraulic concrete dam insulation seepage control clad plate - Google Patents
Hydraulic concrete dam insulation seepage control clad plate Download PDFInfo
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- CN201033870Y CN201033870Y CNU200720103642XU CN200720103642U CN201033870Y CN 201033870 Y CN201033870 Y CN 201033870Y CN U200720103642X U CNU200720103642X U CN U200720103642XU CN 200720103642 U CN200720103642 U CN 200720103642U CN 201033870 Y CN201033870 Y CN 201033870Y
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Abstract
The utility model discloses a heat insulation and anti-seepage composite board for the hydraulic concrete dam, comprising a heat insulation board made of insulation material and a composite geomembrane, wherein, the composite geomembrane comprises a geomembrane made of waterproof material and a double-sided composite structure of two-layer cloth and one-layer membrane with hot-pressed non-woven fabric on the two sides; an adhesive layer is positioned between the composite geomembrane and the heat insulation board. The utility model has the advantages of heat insulation, anti-seepage, better protection for the dam, avoidance of crackle; firm adhesion with the dam body, avoidance of breaking off and stable use for long time; the heat insulation and anti-seepage composite board not only can be used for the normal concrete dam and the rolled concrete dam, but also can be used for the anti-cracking and anti-seepage of the newly built concrete dam and the crack treatment of the existing concrete dam; the utility model prevents the hydraulic pressure in front of the dam from making the cracks expanded continuously, avoids the deterioration of the cracks and the seepage; the anti-aging coating on the external surface enables the heat insulation and anti-seepage composite board to be used as the permanent heat insulation and anti-seepage material of the dam surface.
Description
Technical field
The utility model relates to the thermal-insulating leakage-resistant structure of concrete dam, and a kind of concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate is provided, and this composite plate is fixed on the concrete form surface when constructing by subsides method in adopting, and when the cast dam construction, is bonded together with new poured concrete; Also can adopt outer subsides method construction, stick on by adhesive and build the dam body surface.
Background technology
In the construction of concrete dam, concrete surface crack is difficult to avoid fully, through investigation and analysis external crack mainly temperature difference between inside and outside concrete cause.After concrete dam experience cold wave attacked, its surface tended to occur a collection of crack, so the insulation of concrete dam begins to be subjected to common concern.Be all need take the insulation measure, the crack occur to prevent dam facing at cold district or southern warm area.Domestic research to the concrete dam heat preservation technology is started late, and early stage heat insulating material mainly is straw bag, oilcloth, canvas etc., to 70～eighties gradually by the surface heat preservation layer of foamed plastics as concrete dam.At present, the main concrete dam facing paste heat-preserving plate that adopts in the prior art, for example Xiangshui County's arch dam is once at dam facing paste polystyrene plastic foamboard, and once at dam facing polyurethane spray foam layer, these heat insulating materials can be bonding with dam facing for the sub-arch dam of Fenhe River Er Ku and crossdrift, has heat insulation effect, but do not have the antiseepage function, and these heat insulating material coefficient of thermal conductivity, water absorption rate and intensity are not ideal, pass in time between the aging and dam facing of insulation layer and throw off, peel off, lose insulation effect.Many old concretes dam had both required insulation also to require antiseepage when carrying out the crack repairing, further expanded to avoid the crack, prevented that simultaneously minute crack from developing to deep layer under the water lateral pressure of storehouse, until seepage.
Summary of the invention:
The purpose of this utility model is to solve simultaneously the insulation anticracking and the antiseepage problem of concrete dam, a kind of novel concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate is provided, it is low to overcome present dam facing warming plate intensity, flimsy shortcoming in construction and long-term the use, in to concrete dam insulation anticracking, also can play the effect that prevents seepage, and can use steady in a long-term.This thermal-insulating leakage-resistant composite plate both can also can outer subsides method be constructed in interior subsides method construction, reached the simplification construction technology, guaranteed workmanship, the purpose that reduces cost.
The purpose of this utility model is achieved in that
A kind of concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate comprises the antiseepage composite geo-membrane that warming plate that thermal insulation material is made and waterproofing materials are made, and is provided with adhesive phase between described warming plate and antiseepage film.
Described warming plate is the extrusion molding foam plastic plate.
Described antiseepage composite geo-membrane comprises geomembrane and nonwoven, is the two-sided composite geo-membrane of two cloth, one film that geomembrane and the nonwoven hot pressing that is arranged on two face form.
The concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate that the utility model provides comprises warming plate and composite geo-membrane that thermal insulation material is made.This composite geo-membrane comprises the geomembrane of being made by waterproofing materials and is located at the nonwoven of described geomembrane upper and lower surface, geomembrane and nonwoven are compounded to form two cloth, one film composite geo-membrane by hot pressing, are provided with adhesive phase between described composite geo-membrane and warming plate.
The antiseepage composite plate of this form of structure is beneficial to and makes geomembrane and warming plate bonding firmly, makes thermal-insulating leakage-resistant composite plate and concrete dam facing bonding firm again.
The adhesive of described warming plate and composite geo-membrane is the epoxies material, for example the CJ-915 epoxy glue.Warming plate and composite geo-membrane are had higher adhesive strength, tensile strength and bigger deformation performance, after long-time soaked, still have better tensile strength and adhesive strength, satisfy the requirement of hydraulic structure.
In use, described thermal-insulating leakage-resistant composite plate has two kinds of job practicess, promptly outer subsides method and interior subsides method.
Geomembrane inboard in this thermal-insulating leakage-resistant composite plate is provided with an adhesive phase, it need be provided with when the subsides method is constructed outside adopting, the effect of this adhesive is that the thermal-insulating leakage-resistant composite plate is firmly sticked on the concrete dam facing, this class adhesive can be a polymer-modified cement mortar, this is the adhesive that uses in the prior art, be called for short PMC, main component is a polymer emulsion, as ethylene-vinyl acetate copolymer emulsion, polyacrylate dispersion, acrylate copolymer emulsion etc.,, ordinary Portland cement, fine sand etc.This adhesive adhesive strength, hot strength height, water-fast, the alkali-proof medium performance is good.When constructing with outer subsides method, the thermal-insulating leakage-resistant composite plate sticks on the concrete dam surface by the specialty polymer modified cement mortar, can be firm with concrete dam facing bonding, do not come off.
The outermost of thermal-insulating leakage-resistant composite plate can be to be provided with one deck anti-aging to film; its objective is when the subsides method is provided with this composite plate on dam outside adopting; the radiation of protection plastic foamboard antiultraviolet prolongs the application life of composite plate, makes it as dam surface permanent thermal insulation impervious material.It is the coating of pure-acrylic emulsion that anti-aging is filmed, in concrete the making in order to make this composite plate have color attractive in appearance, can be base-material with the pure-acrylic emulsion and select the inorganic pigment coatings formulated for use, regulate the composite surface color to and the dam concrete solid colour, maintenance engineering overall appearance.This anti-aging adhesive power preferably of having filmed, high-weatherability can stand fierce solar radiation, and it is good to protect the light colour retention, for example can use the anti-aging coating in YTW-11 surface.
Interior subsides method construction implementation method is as follows: at first the thermal-insulating leakage-resistant composite plate is installed in the concrete form inboard, then formwork erection, build dam concrete, after the hardening of concrete with the gluing of thermal-insulating leakage-resistant composite plate together.Remove concrete form, this moment, the thermal-insulating leakage-resistant composite plate sticked on the concrete dam facing, became the part of dam facing. the concrete dam mask there is the double effects of thermal-insulating leakage-resistant.
In use, no matter outer subsides method still is interior subsides method, normally composite geo-membrane is placed the inboard of warming plate to play insulation-antiseepage effect towards dam facing.
Described warming plate is the extrusion molding foam plastic plate, and its coefficient of thermal conductivity and water absorption rate are low, the compressive strength height, and performance is better than the used extruded foam plastic plate of present concrete dam.This warming plate good heat preservation performance, the intensity height, dimensionally stable, not fragile in transportation and the construction, can steady in a long-termly use.
Described impervious material is the two-sided composite geo-membrane that geomembrane and nonwoven hot pressing form, and this geomembrane is that a kind of chemical property is stable, does not have the plastic foil of active group, as polyethylene film.This plastic foil has than high tensile, big elongation rate, and chemical property is stable, and ageing-resistant performance and medium-resistance are good, impervious grade height.By epoxy adhesive, will be incubated, two kinds of materials of antiseepage paste and firmly form the thermal-insulating leakage-resistant composite plate, utilize material performance characteristics separately, make it both play insulation effect, and the antiseepage function is arranged again.
The one side that the inner surface of thermal-insulating leakage-resistant composite plate promptly contacts with new poured concrete should be the nonwoven of composite geo-membrane, and is bonding firmly for making itself and new poured concrete, and nonwoven surface will be coated with an interfacial agents to improve wellability and the adhesive strength of adhesive to nonwoven.Thereby guarantee the strong bond of thermal-insulating leakage-resistant composite plate and dam facing.Used interfacial agents can be the polymer emulsion coating, as the acrylate copolymer emulsion coating.
The concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate that the utility model provides comprises the warming plate of being made by thermal insulation material, and the composite geo-membrane by geomembrane and nonwoven hot pressing form fuses warming plate and composite geo-membrane by adhesive, not only has been incubated but also antiseepage.The concrete dam thermal-insulating leakage-resistant composite plate that the utility model provides can adopt outer subsides method construction to stick on the concrete dam surface by adhesive, the construction of subsides method is installed in it on concrete blinding in also available, directly bond after concreting is finished and become one with the concrete dam surface, its existing insulation effect has the antiseepage function again.The warming plate coefficient of thermal conductivity that the utility model uses is low, water absorption rate is low, the intensity height, and performance is better than the used warming plate of present hydraulic structure.In addition, composite plate and the dam body firm difficult drop-off that bonds can use steady in a long-term.This thermal-insulating leakage-resistant plate both can be used for the normal concrete dam and also can be used for RCCD (Roller Compacted Concrete Dam), both can be used for anticracking, the antiseepage of newly-built concrete dam, also can be used for having built the crack treatment on concrete dam, and made the crack no longer develop deterioration, and prevention percolating water, avoid preceding storehouse, dam water pressure to make fracture propagation.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate that provides of the utility model;
Fig. 2 is this concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate bridging arrangement schematic diagram;
The specific embodiment
Concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate as shown in Figure 1 comprises warming plate 1 and the composite geo-membrane 2 that thermal insulation material is made, the geomembrane of this composite geo-membrane 2 for making by waterproofing materials, and for this geomembrane is combined with warming plate firmly, and, between described composite geo-membrane and warming plate, be provided with adhesive phase 3 at two cloth, the one film composite geo-membrane of its two sides hot pressing compound nonwoven cloth.Be provided with adhesive phase 4 between the thermal-insulating leakage-resistant composite plate, thermal-insulating leakage-resistant composite plate external surface is that anti-aging films 5.
Geomembrane in the composite geo-membrane 2 is that a kind of chemical property is stable, does not have the plastic foil of active group, as polyethylene film.On two side hot pressing fixedly nonwoven form two cloth, one film composite geo-membrane.
Adhesive 4 is to be used for bonding between the composite plate, and the thermal-insulating leakage-resistant composite plate is firmly sticked on the concrete dam facing during construction of outer subsides method, and adhesive 4 polymer-modified cement mortars (abbreviation PMC) are to be made up of polymer emulsion, cement, fine sand etc.This is the adhesives that uses in the prior art, and polymer wherein for example and can be ethylene-vinyl acetate copolymer emulsion, polyacrylate dispersion, acrylate copolymer emulsion etc.This adhesive specially has advantages of higher tensile strength and to concrete surface, to warming plate with to the adhesive strength of composite geo-membrane, and is water-fast, the alkali-proof medium performance is good, long-time soaked after, still have intensity preferably, satisfy the requirement of hydraulic structure.
Adhesive 3 is can epoxy glue, for example is the CJ-915 epoxy glue, is used for bonding between warming plate and the composite geo-membrane, have higher adhesive strength, tensile strength and deformation performance, after long-time soaked, still have intensity preferably, can satisfy the requirement of hydraulic structure.
Anti-aging films 5: be the acrylic emulsion coating.It has adhesive power preferably, and high-weatherability can stand fierce solar radiation, and guarantor's light colour retention is good, and concrete for example is the anti-aging coating in YTW-11 surface.For making composite plate have color attractive in appearance, can be base-material and select for use inorganic pigment to prepare the coating that this anti-aging is filmed in order to pure-acrylic emulsion.
Can also be provided with an adhesive phase (not shown) in the geomembrane inboard of this thermal-insulating leakage-resistant composite plate, it need be provided with when the subsides method is constructed outside adopting, the effect of this adhesive is that the thermal-insulating leakage-resistant composite plate is firmly pasted this class adhesive of concrete dam facing can be polymer-modified cement mortar, this is the adhesives that uses in the prior art, and main component is polymer emulsion, cement, fine sand etc.This adhesive adhesive strength, hot strength height, water-fast, the alkali-proof medium performance is good.Adhesive 4 between this adhesive and the composite plate is commaterials.
In use, no matter outer subsides method still is interior subsides method, normally composite geo-membrane is placed the inboard of warming plate to play insulation-antiseepage effect towards dam facing.
Firmly can be coated with the agent of a kind of bed boundary in nonwoven surface for guaranteeing that thermal-insulating leakage-resistant plate and dam facing are bonding, used interfacial agents can be polymer emulsion such as acrylate copolymer emulsion.
Claims (9)
1. concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate is characterized in that: comprise the antiseepage composite geo-membrane that warming plate that thermal insulation material is made and waterproofing materials are made, be provided with adhesive phase between described warming plate and antiseepage film.
2. concrete dam thermal-insulating leakage-resistant composite plate according to claim 1 is characterized in that: described warming plate is the extrusion molding foam plastic plate.
3. concrete for hydraulic structure according to claim 1 dam thermal-insulating leakage-resistant composite plate, it is characterized in that: described antiseepage composite geo-membrane comprises geomembrane and nonwoven, is the two-sided composite geo-membrane of two cloth, one film that the nonwoven hot pressing of geomembrane and following two faces disposed thereon forms.
4. according to any described concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate among the claim 1-3, it is characterized in that: the material of the adhesive phase that is provided with between described warming plate and the antiseepage composite geo-membrane is an epoxy glue.
5. according to any described concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate among the claim 1-3, it is characterized in that: between the inboard of thermal-insulating leakage-resistant composite plate and thermal-insulating leakage-resistant composite plate, layer of adhesive is set, make the thermal-insulating leakage-resistant composite plate be fixed on the dam facing and/or the combination of adjacent composite plate, the adhesive therefor layer is that the polymer-modified cement mortar adhesive is PMC.
6. according to any described concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate among the claim 1-3, it is characterized in that: the layer of surface on described composite geo-membrane surface is coated with the interface agent coating of a polymeric material.
7. concrete for hydraulic structure according to claim 6 dam thermal-insulating leakage-resistant composite plate is characterized in that: described interfacial agents layer is the polymer emulsion coating.
8. according to any described concrete for hydraulic structure dam thermal-insulating leakage-resistant composite plate among the claim 1-3, it is characterized in that: the external surface of described warming plate is provided with one deck anti-aging and films.
9. concrete for hydraulic structure according to claim 8 dam thermal-insulating leakage-resistant composite plate is characterized in that: described anti-aging is filmed and is the acrylic emulsion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720103642XU CN201033870Y (en) | 2007-02-15 | 2007-02-15 | Hydraulic concrete dam insulation seepage control clad plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720103642XU CN201033870Y (en) | 2007-02-15 | 2007-02-15 | Hydraulic concrete dam insulation seepage control clad plate |
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| CN201033870Y true CN201033870Y (en) | 2008-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200720103642XU Expired - Lifetime CN201033870Y (en) | 2007-02-15 | 2007-02-15 | Hydraulic concrete dam insulation seepage control clad plate |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN103806472A (en) * | 2014-03-07 | 2014-05-21 | 南京水利科学研究院 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
| CN104018469A (en) * | 2014-05-23 | 2014-09-03 | 北京中水科海利工程技术有限公司 | Channel anti-frostbite swelling combination type integrated seepage-proofing and thermal insulation board |
| CN106958231A (en) * | 2017-05-16 | 2017-07-18 | 北京中水科海利工程技术有限公司 | A kind of composite insulation boards and the concrete dam heat-insulation system based on composite insulation boards |
| CN108316249A (en) * | 2018-03-13 | 2018-07-24 | 中水北方勘测设计研究有限责任公司 | Overwintering storehouse surface insulation construction for severe cold area grinding coagulation soil |
| CN111362721A (en) * | 2018-12-25 | 2020-07-03 | 中国建筑第八工程局有限公司 | Construction method for reducing shrinkage deformation of concrete surface |
| CN111764722A (en) * | 2020-06-24 | 2020-10-13 | 北京英沣特能源技术有限公司 | Membrane type pool energy storage system |
| CN111042160B (en) * | 2019-12-30 | 2021-07-23 | 东南大学 | Composite covering layer system suitable for slope polluted site and construction method thereof |
| CN114775530A (en) * | 2022-05-06 | 2022-07-22 | 重庆交通大学 | Pumped storage upper reservoir dry-wet circulation lower heat insulation seepage-proofing reservoir bank structure and construction method thereof |
-
2007
- 2007-02-15 CN CNU200720103642XU patent/CN201033870Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831889A (en) * | 2010-05-05 | 2010-09-15 | 河海大学 | Anti-seismic combination slab for earth and rockfill dam and construction method thereof |
| CN103806472A (en) * | 2014-03-07 | 2014-05-21 | 南京水利科学研究院 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
| CN103806472B (en) * | 2014-03-07 | 2015-04-15 | 南京水利科学研究院 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
| CN104018469A (en) * | 2014-05-23 | 2014-09-03 | 北京中水科海利工程技术有限公司 | Channel anti-frostbite swelling combination type integrated seepage-proofing and thermal insulation board |
| CN106958231A (en) * | 2017-05-16 | 2017-07-18 | 北京中水科海利工程技术有限公司 | A kind of composite insulation boards and the concrete dam heat-insulation system based on composite insulation boards |
| CN106958231B (en) * | 2017-05-16 | 2023-04-11 | 北京中水科海利工程技术有限公司 | Composite insulation board and concrete dam insulation system based on same |
| CN108316249A (en) * | 2018-03-13 | 2018-07-24 | 中水北方勘测设计研究有限责任公司 | Overwintering storehouse surface insulation construction for severe cold area grinding coagulation soil |
| CN111362721A (en) * | 2018-12-25 | 2020-07-03 | 中国建筑第八工程局有限公司 | Construction method for reducing shrinkage deformation of concrete surface |
| CN111362721B (en) * | 2018-12-25 | 2022-04-29 | 中国建筑第八工程局有限公司 | Construction method for reducing shrinkage deformation of concrete surface |
| CN111042160B (en) * | 2019-12-30 | 2021-07-23 | 东南大学 | Composite covering layer system suitable for slope polluted site and construction method thereof |
| CN111764722A (en) * | 2020-06-24 | 2020-10-13 | 北京英沣特能源技术有限公司 | Membrane type pool energy storage system |
| CN114775530A (en) * | 2022-05-06 | 2022-07-22 | 重庆交通大学 | Pumped storage upper reservoir dry-wet circulation lower heat insulation seepage-proofing reservoir bank structure and construction method thereof |
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Granted publication date: 20080312 |