CN203129095U - Composite impervious face slab structure for rock-fill dam - Google Patents
Composite impervious face slab structure for rock-fill dam Download PDFInfo
- Publication number
- CN203129095U CN203129095U CN 201320118794 CN201320118794U CN203129095U CN 203129095 U CN203129095 U CN 203129095U CN 201320118794 CN201320118794 CN 201320118794 CN 201320118794 U CN201320118794 U CN 201320118794U CN 203129095 U CN203129095 U CN 203129095U
- Authority
- CN
- China
- Prior art keywords
- face slab
- concrete
- layer
- composite
- ultrahigh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Revetment (AREA)
Abstract
A composite impervious face slab structure for a rock-fill dam comprises a concrete face slab layer, an ultrahigh toughness cementitious composite layer is arranged above the concrete face slab layer, and s steel bar is arranged in the middle of the concrete face slab layer. The composite impervious face slab structure is simple in structure, and is obtained mainly by means of spraying the ultrahigh toughness cementitious composite layer or arranging a self-compacting ultrahigh toughness cementitious composite layer on the upper surface of the concrete face slab layer. Since a ultrahigh toughness cementitious composite (UHTCC) has ultrahigh deformability, crack harmless dispersive capacity and outstanding energy dissipation capacity, and has excellent combined action effect with concrete, and by the aid of excellent durability and seismic performance, strain-hardening characteristics shown in a crack developing process and the characteristic that permeability coefficient is gradually decreased with age thereof, the ultrahigh toughness cementitious composite has extremely broad prospect in engineering application and particularly in application of hydraulic concrete engineering. Therefore, the composite impervious face slab structure is capable of effectively improving stretch resistance and deformation resistance of face slabs, and is highly reliable.
Description
Technical field
The utility model relates to the dash leakage preventing structure of water conservancy and hydropower face dam concrete slab.Especially a kind of compound face slab for water retaining structure for loose rock dam.
Background technology
Concrete slab is as the main leakage preventing structure of rock, and its security reliability is one of subject matter of always paying close attention to of Ba Gongjie.Since the ability of concrete material opposing stretcher strain a little less than, under water ballast(ing) and seismic loading, easily produce the structural horizontal drawing crack seam that runs through panel, this position seepage prevention system was lost efficacy.By introducing novel panel material and improving the panel construction form, can solve this engineering problem well.
At present, building in the rock, existing many dam bodys have adopted novel panel material (steel fibre, polypropylene fibre).Water cloth a strip of land between hills rock adopts polyacrylonitrile fibre as the inferior reinforcement material of first phase panel concrete, admixture steel fibre material in a left side 7 ~ 11 panel concretes in a left side of three phase of dam panel as the highest rock of having built in the world.Flood man crosses the rock panel concrete and adopts C30 two grating polypropylene fibre expansive concretes, and uses unreinforced steel fibrous concrete panel in a panel.Polypropylene fiber concrete is at white small stream face dam second phase panel, and used in the three plate small stream face dam panels.
Though the use of polypropylene fibre and steel fibrous concrete can be controlled generation and the development in crack to a certain extent, in case cracking, the effect of polypropylene fibre namely loses, and is at this moment basic identical with the performance of the steel concrete of admixture polypropylene fibre not.The fine ductility of steel fibre is not high, namely the development that forms the crack is lacked restriction.And steel fibre is because of himself design feature, and work progress is difficult for vibrating and conglomeration takes place easily.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, can effectively improve panel opposing stretcher strain ability, and the high compound face slab for water retaining structure that is used for loose rock dam of reliability.
The utility model solves the technical scheme that the prior art problem adopts: a kind of compound face slab for water retaining structure for loose rock dam, comprise the concrete surface flaggy, and the top of concrete surface flaggy is provided with superhigh tenacity cement-base composite material layer; The middle part of concrete surface flaggy is provided with reinforcing bar.
The thickness of superhigh tenacity cement-base composite material layer be compound face slab for water retaining the minimum thickness place 0.15-0.3 doubly.
Described superhigh tenacity cement-base composite material layer is sprayed at the upper surface of described concrete surface flaggy.
Described superhigh tenacity cement-base composite material layer is self-compaction superhigh tenacity cement-base composite material layer.
The beneficial effects of the utility model are: the utility model is simple in structure, and main utilization sprays superhigh tenacity cement-base composite material layer or the realization of self-compaction superhigh tenacity cement-base composite material layer is set at the upper surface of concrete surface flaggy; Because superhigh tenacity cement-base composite material (UHTCC) has superpower deformability, the innoxious dispersibility in crack and remarkable energy dissipation capability, respond well with the concrete acting in conjunction, this material is at present in aspect practical applications to some extent such as tunnel lining, dam facing repairing, building repairing and reinforcements.Its favorable durability and anti-seismic performance, the strain hardening characteristic that shows in the crack developing process and transmission coefficient characteristic such as reduce gradually with the growth in the length of time makes it use in engineering, especially has extremely wide prospect in the application of concrete for hydraulic structure engineering, therefore the utility model can effectively improve panel opposing stretcher strain ability, and the reliability height.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is range of application schematic diagram of the present utility model.
Among the figure, 1-concrete surface flaggy, 2-superhigh tenacity cement-base composite material layer, 3-reinforcing bar.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described:
Fig. 1 is the structural representation of a kind of compound face slab for water retaining structure for loose rock dam of the utility model.A kind of compound face slab for water retaining structure for loose rock dam, mainly comprise two-layer, namely the upper surface at concrete surface flaggy 1 is coated with superhigh tenacity cement-base composite material layer 2, or at the upper surface of concrete surface flaggy 1 self-compaction superhigh tenacity cement-base composite material layer is set, on-the-spotly stir twice sliding formwork moulding; Set reinforcing bar 3 at the middle part of concrete surface flaggy 1.Wherein the thickness of superhigh tenacity cement-base composite material layer 2 be face slab for water retaining minimum thickness place 0.15-0.3 doubly.Wherein, the thickness of concrete surface flaggy 1 is along with the height change of dam body, and being specially 0.03+0.0035H(unit is m), wherein H is the height on dam.As shown in Figure 1, the thickness of superhigh tenacity cement-base composite material layer 2 is 0.15h0 ~ 0.3h
0, h wherein
0One-tenth-value thickness 1/10 for the utility model minimum thickness place.
The utility model is when being applied to loose rock dam, and near upstream face, concrete surface flaggy 1 adopts conventional trackless slding form operation with superhigh tenacity cement-base composite material layer 2.Need when using the utility model according to drawing the line and using in conjunction with the actual conditions of panel piecemeal stage construction.Shown in Figure 2 is the range of application of the utility model panel in suitable aspect high tensile stress district under dynamic load function.Wherein, in the scope of I zone and II zone correspondence, can use the utility model.And at other zone use available coagulation soil panels.Namely by shown in Figure 2, the I zone is along the height of dam direction, and the coboundary is 0.8H ~ 0.9H, and lower boundary is 0.5H ~ 0.6H, is place, wide nearly river valley, the 0.3L left and right sides along the dam direction of principal axis; The II zone is near the river valley 0.1H, and the width with 0.05H extends about 0.5H to two sides along all side seams.Wherein, H is height of dam, and L is dam axial length.
The top edge in I zone can extend to dam crest according to actual conditions.The quiet tensile stress of II location panel is generally also bigger, but considers the influence of construction, can consider whether to select for use this zone according to concrete engineering panel construction method.
Above content be in conjunction with concrete optimal technical scheme to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. a compound face slab for water retaining structure that is used for loose rock dam comprises concrete surface flaggy (1), it is characterized in that the top of concrete surface flaggy (1) is provided with superhigh tenacity cement-base composite material layer (2); The middle part of concrete surface flaggy (1) is provided with reinforcing bar (3).
2. a kind of compound face slab for water retaining structure for loose rock dam according to claim 1 is characterized in that, the thickness of superhigh tenacity cement-base composite material layer (2) be compound face slab for water retaining the minimum thickness place 0.15-0.3 doubly.
3. a kind of compound face slab for water retaining structure for loose rock dam according to claim 1 is characterized in that described superhigh tenacity cement-base composite material layer (2) is sprayed at the upper surface of described concrete surface flaggy (1).
4. a kind of compound face slab for water retaining structure for loose rock dam according to claim 1 is characterized in that, described superhigh tenacity cement-base composite material layer (2) is self-compaction superhigh tenacity cement-base composite material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118794 CN203129095U (en) | 2013-03-15 | 2013-03-15 | Composite impervious face slab structure for rock-fill dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320118794 CN203129095U (en) | 2013-03-15 | 2013-03-15 | Composite impervious face slab structure for rock-fill dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129095U true CN203129095U (en) | 2013-08-14 |
Family
ID=48937090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320118794 Expired - Fee Related CN203129095U (en) | 2013-03-15 | 2013-03-15 | Composite impervious face slab structure for rock-fill dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129095U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643656A (en) * | 2013-11-22 | 2014-03-19 | 河海大学 | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body |
| CN103837410A (en) * | 2014-03-20 | 2014-06-04 | 中南大学 | Method for testing ductility of SHCC (stress hardening cement-base composite material) for reinforcing cracking structure |
| CN106835973A (en) * | 2017-03-20 | 2017-06-13 | 山东大学 | Fleece superhigh tenacity cement-base composite material combined bridge deck structure and method |
| CN108249836A (en) * | 2018-03-09 | 2018-07-06 | 中交四航工程研究院有限公司 | A kind of crack resistence structure for Wharf Surface |
| CN108316251A (en) * | 2018-02-06 | 2018-07-24 | 浙江大学 | A method of Face Slab of Concrete of Rock-fill Dam is reinforced using superhigh tenacity cement-base composite material |
| CN109518658A (en) * | 2019-01-04 | 2019-03-26 | 黄河勘测规划设计有限公司 | Library anti-seepage method in hydroenergy storage station |
-
2013
- 2013-03-15 CN CN 201320118794 patent/CN203129095U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643656A (en) * | 2013-11-22 | 2014-03-19 | 河海大学 | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body |
| CN103837410A (en) * | 2014-03-20 | 2014-06-04 | 中南大学 | Method for testing ductility of SHCC (stress hardening cement-base composite material) for reinforcing cracking structure |
| CN103837410B (en) * | 2014-03-20 | 2016-01-20 | 中南大学 | A kind of SHCC ductility method of testing for reinforcing existing cracking structure |
| CN106835973A (en) * | 2017-03-20 | 2017-06-13 | 山东大学 | Fleece superhigh tenacity cement-base composite material combined bridge deck structure and method |
| CN108316251A (en) * | 2018-02-06 | 2018-07-24 | 浙江大学 | A method of Face Slab of Concrete of Rock-fill Dam is reinforced using superhigh tenacity cement-base composite material |
| CN108316251B (en) * | 2018-02-06 | 2019-11-19 | 浙江大学 | A method of Face Slab of Concrete of Rock-fill Dam is reinforced using superhigh tenacity cement-base composite material |
| CN108249836A (en) * | 2018-03-09 | 2018-07-06 | 中交四航工程研究院有限公司 | A kind of crack resistence structure for Wharf Surface |
| CN109518658A (en) * | 2019-01-04 | 2019-03-26 | 黄河勘测规划设计有限公司 | Library anti-seepage method in hydroenergy storage station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203129095U (en) | Composite impervious face slab structure for rock-fill dam | |
| CN103643656B (en) | High rock-fill dam membrane anti-seepage body on deep coverage layer and construction method of high rock-fill dam membrane anti-seepage body | |
| CN108316251B (en) | A method of Face Slab of Concrete of Rock-fill Dam is reinforced using superhigh tenacity cement-base composite material | |
| CN204023501U (en) | A kind of reinforcement Anti-seeping technology structure for earth and rockfill dam | |
| CN103556783A (en) | Lightweight aggregate concrete column with steel-armored corners and fabrication technology thereof | |
| CN105804083A (en) | Grouting pipeline device, conical special-shaped pile and application method thereof | |
| CN203939180U (en) | Marine sand concrete flexural member | |
| CN205742201U (en) | A kind of grouting pipeline device and tapered shaped pile | |
| CN106245595B (en) | A kind of maintainable face dam of antiseepage wall bottom seepage control system | |
| CN208981282U (en) | A kind of high earthquake territory concrete face rockfill dam dam crest structure | |
| CN207484264U (en) | Suspension cable-suspension cable co-operative system bridge is turned round in four rope faces in the same direction | |
| CN205917662U (en) | Prevent concrete face rockfill dam that ftractures | |
| CN105544312B (en) | The box-like composite foundation of reinforced concrete pile plain concrete pile partition group | |
| CN207739293U (en) | A kind of basement roof waterproof construction | |
| CN200988970Y (en) | High strength ribbed composite anti-leaking earthwork film | |
| CN203532990U (en) | Fiber-woven net reinforced cement-based composite prefabricated pipe | |
| CN211774800U (en) | Tibetan rubble wall body | |
| CN204919568U (en) | Compound supporting construction of shallow foundation ditch | |
| CN210636388U (en) | Composite drainage structure of homogeneous earth dam | |
| CN207047790U (en) | A kind of protection slope | |
| CN206844058U (en) | A kind of high security concrete dam matrix of seawater corrosion resistance | |
| CN208235997U (en) | A kind of slip casting Seed harvest repaired for earthen ruins crack | |
| CN205296064U (en) | River channel revetment reinforcing structure | |
| CN205907654U (en) | Palm brick permeates water | |
| CN205348103U (en) | Gabion and river course revetment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20200315 |