CN107806064B - Seamless water stop face plate dam - Google Patents
Seamless water stop face plate dam Download PDFInfo
- Publication number
- CN107806064B CN107806064B CN201711208979.1A CN201711208979A CN107806064B CN 107806064 B CN107806064 B CN 107806064B CN 201711208979 A CN201711208979 A CN 201711208979A CN 107806064 B CN107806064 B CN 107806064B
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- Prior art keywords
- water stop
- seamless
- panel
- water
- dam
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- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000004567 concrete Substances 0.000 claims abstract description 40
- 239000010410 layer Substances 0.000 claims abstract description 21
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 29
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 16
- 230000008901 benefit Effects 0.000 description 9
- 230000002265 prevention Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The invention discloses a seamless water stop face dam, in particular to a seamless water stop face dam in the field of construction of hydroelectric engineering face dams. The seamless water stop face plate dam comprises a coplanar concrete supporting surface formed by extruding side walls and toe boards and an integral water stop layer arranged on the concrete supporting surface, wherein a surface layer protective concrete face plate is arranged on the integral water stop layer, and a toe board cover plate is arranged at the toe board. Adopt the seamless stagnant water panel dam of this application, through the sandwich structure that concrete panel + stagnant water + extrusion side wall formed, form seamless whole stagnant water panel, reduced the risk that the panel leaked, reduced the design, the seam, construction, the maintenance degree of difficulty of panel. The flexible water stop is seamless as a whole, and the sandwich panel has relatively strong capability of adapting to deformation as long as the connection with the toe board is properly treated.
Description
Technical Field
The invention relates to a seamless water stop face dam, in particular to a seamless water stop face dam in the field of water and electricity engineering face dam construction.
Background
In the existing water conservancy and hydropower dam construction technology, the face rockfill dam has the advantages of being good in adaptability to the terrain and geological conditions, small in dam body section, good in economical efficiency and the like, and is widely adopted. The existing face-plate dam construction technology mainly adopts reinforced concrete face plates, vertical parting joints are adopted, and dam body seepage prevention mainly comprises the reinforced concrete face plates and parting joints and water stopping. The parting water stop generally comprises a peripheral seam and a vertical seam, and a top water stop, a seam water stop, a bottom water stop and the like are arranged according to the parting displacement condition. The design and construction quality of water stop are directly related to the seepage prevention and infiltration safety of a dam body, and meanwhile, the anti-cracking and anti-damage effects of reinforced concrete are important points of engineering design and construction. The design of multiple stagnant water is higher to construction quality requirement, and the application of multiple stagnant water material also often leads to the investment higher simultaneously. The reinforced concrete panels are complex in general stress conditions, the concrete crack resistance design and construction maintenance are required to be higher, the extrusion between the panels also often causes local damage of the panels, water leakage is caused, and the safety of a dam body is affected.
The design and construction of the existing anti-seepage water stop system of the reinforced concrete vertical joint face dam body are key points of face dam construction, and the design and construction are directly related to engineering benefits of the face dam and safety of water retaining buildings. In order to ensure the reliability of the seepage-proofing and water-stopping system in engineering, deformation, relative displacement, stress and the like of vertical seams and peripheral seams among panels under various working conditions need to be fully analyzed, and corresponding water-stopping design is carried out according to the parting conditions of different parts. However, the prior art cannot perform detailed and reliable analysis on each parting under various working conditions, so that a redundant design that multiple water stops are backed up each other is adopted in engineering to ensure the reliability of a water stop system, and the water stop investment is relatively high on a certain layering level. The design of multi-channel water stop is not economical enough, the construction difficulty is increased, and the quality risk of the water stop system construction is increased. The existing reinforced concrete panel dam has the defects of water blocking and seepage prevention required by the panel, and the engineering design and construction are also high in requirement. The reinforced concrete panels have complex stress conditions, complex interactions between the panels and the toe boards, and are easy to cause local damage, thus greatly increasing engineering design difficulty.
Disclosure of Invention
The invention provides the seamless water stop panel dam which can remarkably improve the integrity of a water stop system, simplify construction procedures, has high pressure resistance and durability of the structure, good water stop and seepage resistance effects, strong adaptability to deformation and high reliability.
The invention provides a seamless water stop face plate dam for solving the problems, which comprises a coplanar concrete supporting surface formed by extruding side walls and toe boards and an integral water stop layer arranged on the concrete supporting surface, wherein a surface layer protective concrete face plate is arranged on the integral water stop layer, and a toe board cover plate is arranged at the toe board.
Further, the integral water stopping material is fixed with the toe board through bolt pressing sheets.
Further, the surface layer protection concrete panel is provided with parting joints.
Further, the integral waterproof layer is made of rubber or a composite integral waterproof layer formed by rubber and a high polymer plate.
The beneficial effects of the invention are as follows: the concrete material pressure-resistant and durability that this application has rationally utilized is good, whole water-stop layer can whole seamless construction, and ductility is good, and deformation adaptability is high, by the long characteristics of durability behind the concrete parcel, can exert the advantage of different materials through the sandwich structure that concrete panel + stagnant water + extrusion side wall formed, forms seamless whole water-stop panel, avoids traditional concrete panel dam leak protection to both rely on the complex stagnant water structure of panel seam effectively to still guarantee the double assurance of concrete panel not fracture harm simultaneously, has reduced the risk that the panel leaked. The application of extruded side walls provides a reliable support surface for the water, and the covering of the concrete panels both protects the water from damage and provides a durable environment for the water. After the requirements of the panel on crack resistance and deflection are reduced, the difficulties of design, parting, construction and maintenance of the panel are reduced. The flexible water stop is seamless as a whole, and the sandwich panel has relatively strong capability of adapting to deformation as long as the connection with the toe board is properly treated.
Drawings
FIG. 1 is a schematic illustration of the completion of a face dam toe board, extruded side wall and dam construction of the present invention;
FIG. 2 is a schematic illustration of the present invention for laying an integral water stop on the surfaces of a toe board and extruded sidewall;
FIG. 3 is a schematic view of a water stop upper construction panel and toe board cover plate of the present invention;
marked in the figure as: the side wall 1, the toe board 2, the integral waterproof layer 3 and the surface protective concrete panel 4 are extruded.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The seamless water stop face dam as shown in fig. 1, 2 and 3 comprises a coplanar concrete supporting surface formed by extruding side walls 1 and toe boards 2 and an integral water stop layer 3 arranged on the concrete supporting surface, wherein a surface layer protective concrete face plate 4 is arranged on the integral water stop layer 3, and a toe board 2 cover plate is arranged at the toe board 2.
The split water stopping scheme which is always used in the prior art is abandoned, and the sandwich structure of integral water stopping is arranged between the concrete panel and the extrusion side wall 1, so that the advantages of different materials are fully exerted, the vertical seams among the panels and the peripheral seams among the panels and the toe boards 2 are eliminated, the integrity of a water stopping system is improved, the construction process is simplified, and the increment of engineering in the aspects of safety, reliability and economy is realized. The seamless water-stopping panel dam has the advantages that the panel mainly plays roles of protecting water stopping and resisting water ageing, so that the panel does not need to adopt an anti-cracking design, only certain strength and durability are required to be met, and the parting between the panels is not limited by the parting water stopping any more, so that the construction is more convenient, the deformation is facilitated, and the design difficulty and the construction maintenance requirement of the panel are greatly reduced. The integral water-stop layer 3 is made of a material which can meet the characteristics of strength, flexibility, seepage prevention and durability under the condition of being wrapped by concrete, and is beneficial to integral construction. The integral water stop is seamless due to strong deformation adaptability, good seepage prevention effect, and can meet the seepage prevention requirement of the dam body only by being reliably connected with the toe board 2. The extrusion sidewall 1 at the lower part of the water stop not only improves the rolling quality of the cushion material, but also provides a reliable supporting surface for water. The water stopping material clamped between the panel and the extrusion side wall 1 is comprehensively protected, the water stopping material has better deformability, the structure exerts the advantages of good pressure resistance and durability of concrete, good water stopping layer 3, good water stopping and permeability resistance, strong adaptation deformation, light and oxygen prevention and long service life, and has the advantages of easy construction, good reliability, strong adaptation deformation, economy and safety.
The integral water-stop layer 3 is fixed with the toe board 2, and the mode of pouring the bolt pressing sheet into the concrete is adopted, so that the integral water-stop layer 3 and the toe board 2 can be reliably fixed.
The surface layer protection concrete panel 4 is provided with parting lines, so that the strength and durability of the surface layer protection concrete panel 4 can be improved.
And the surface protective concrete panel 4 is provided with a crack-developing reinforcing steel bar.
The whole water stop at the lower part of the panel can be made of rubber or a composite whole water stop formed by rubber and a high polymer plate, and the rubber water stop or the rubber high polymer composite water stop is good in impermeability, strong in adaptation deformation, long in light-shading and oxygen-avoiding life, and has the advantages of easiness in construction, good reliability, strong in adaptation deformation, economy and safety.
The construction process steps of the seamless water stop face plate dam are as follows:
1. firstly, constructing a face plate dam toe board 2 and filling a face plate dam body, wherein an extrusion side wall 1 scheme is adopted when the dam body is filled, so that an extrusion side wall 1 and the toe board 2 form a coplanar concrete supporting surface;
2. carrying out proper surface treatment on the supporting surface and paving an integral water stopping material, wherein the water stopping material can be one or more layers of rubber or a composite material consisting of the rubber and a high polymer plate as required, and the water stopping material layer is required to meet the requirements of strength, deformation and extension, water blocking performance, durability under the condition of being wrapped by concrete and seamless integrity;
3. the water stopping material of the toe board 2 can be fixed by adopting a mode of pressing bolts into sheets and pouring the sheets into the concrete;
4. the surface layer protective concrete panel 4 can be poured, split and matched with split reinforcing steel bars and the like appropriately according to the requirements.
In conclusion, the invention reasonably utilizes the characteristics of good pressure resistance and durability of the concrete material, good water blocking performance of the high polymer plate water blocking material such as rubber, integral seamless construction, good ductility, high deformation adaptability and long durability after being wrapped by the concrete, and can exert the advantages of different materials through the sandwich structure formed by the concrete panel, water blocking and extrusion of the side wall 1, thereby forming a seamless integral water blocking panel, avoiding the double guarantee that the traditional concrete panel dam leakage prevention depends on the complex water blocking structure of the panel seam effectively and simultaneously ensuring that the concrete panel is not cracked and damaged, and reducing the risk of panel leakage. The application of the extruded sidewall 1 provides a reliable support surface for the water, and the covering of the concrete panels both protects the water from damage and provides a durable environment for the water. After the requirements of the panel on crack resistance and deflection are reduced, the difficulties of design, parting, construction and maintenance of the panel are reduced. The flexible water stop is seamless as a whole, and the sandwich panel has relatively strong capability of adapting to deformation as long as the connection with the toe board 2 is properly treated.
Claims (4)
1. The seamless water stop face plate dam is characterized in that: the toe board comprises a coplanar concrete supporting surface formed by extruding a side wall (1) and a toe board (2) and an integral water-stopping layer (3) arranged on the concrete supporting surface, wherein a surface layer protection concrete panel (4) is arranged on the integral water-stopping layer (3), and a toe board (2) cover plate is arranged at the toe board (2).
2. The seamless water stop face dam of claim 1, wherein: the integral waterproof layer (3) is fixed with the toe board (2) through bolt pressing sheets.
3. The seamless water stop face dam of claim 1, wherein: and a parting joint is arranged on the surface protective concrete panel (4).
4. A seamless water stop face dam as claimed in claim 3, wherein: the integral waterproof layer (3) is rubber or a composite integral waterproof layer (3) formed by rubber and a high polymer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208979.1A CN107806064B (en) | 2017-11-27 | 2017-11-27 | Seamless water stop face plate dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208979.1A CN107806064B (en) | 2017-11-27 | 2017-11-27 | Seamless water stop face plate dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107806064A CN107806064A (en) | 2018-03-16 |
| CN107806064B true CN107806064B (en) | 2024-03-12 |
Family
ID=61581709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711208979.1A Active CN107806064B (en) | 2017-11-27 | 2017-11-27 | Seamless water stop face plate dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107806064B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203487508U (en) * | 2013-07-17 | 2014-03-19 | 中国水电顾问集团北京勘测设计研究院 | Surface layer waterstop structure used for reinforced concrete face board of frozen reservoir |
| CN106192898A (en) * | 2016-07-11 | 2016-12-07 | 中国水利水电第十工程局有限公司 | The joint construction method of Face Slab of Concrete-faced Rockfill anti-settling deformation |
| CN106192907A (en) * | 2016-07-11 | 2016-12-07 | 中国水利水电第十工程局有限公司 | Set up the construction method of 150m～the 300m level high concrete panel rock-fill dams of cement sand and gravel structure sheaf |
| KR101739699B1 (en) * | 2016-07-20 | 2017-05-26 | 한국수자원공사 | Construction Method Of Geomembrane Core Rockfill Dam |
| KR101758023B1 (en) * | 2016-07-20 | 2017-07-13 | 한국수자원공사 | Concrete Mat And Geomembrane Sealing System Dam |
| CN207846345U (en) * | 2017-11-27 | 2018-09-11 | 中国电建集团成都勘测设计研究院有限公司 | Seamless sealing face dam |
-
2017
- 2017-11-27 CN CN201711208979.1A patent/CN107806064B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203487508U (en) * | 2013-07-17 | 2014-03-19 | 中国水电顾问集团北京勘测设计研究院 | Surface layer waterstop structure used for reinforced concrete face board of frozen reservoir |
| CN106192898A (en) * | 2016-07-11 | 2016-12-07 | 中国水利水电第十工程局有限公司 | The joint construction method of Face Slab of Concrete-faced Rockfill anti-settling deformation |
| CN106192907A (en) * | 2016-07-11 | 2016-12-07 | 中国水利水电第十工程局有限公司 | Set up the construction method of 150m～the 300m level high concrete panel rock-fill dams of cement sand and gravel structure sheaf |
| KR101739699B1 (en) * | 2016-07-20 | 2017-05-26 | 한국수자원공사 | Construction Method Of Geomembrane Core Rockfill Dam |
| KR101758023B1 (en) * | 2016-07-20 | 2017-07-13 | 한국수자원공사 | Concrete Mat And Geomembrane Sealing System Dam |
| CN207846345U (en) * | 2017-11-27 | 2018-09-11 | 中国电建集团成都勘测设计研究院有限公司 | Seamless sealing face dam |
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| Publication number | Publication date |
|---|---|
| CN107806064A (en) | 2018-03-16 |
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