CN100513699C - Seepage-proof structure for water conservancy and hydroelectric project - Google Patents
Seepage-proof structure for water conservancy and hydroelectric project Download PDFInfo
- Publication number
- CN100513699C CN100513699C CNB2006100212975A CN200610021297A CN100513699C CN 100513699 C CN100513699 C CN 100513699C CN B2006100212975 A CNB2006100212975 A CN B2006100212975A CN 200610021297 A CN200610021297 A CN 200610021297A CN 100513699 C CN100513699 C CN 100513699C
- Authority
- CN
- China
- Prior art keywords
- dam
- dam body
- hydraulic
- hydro
- layer
- 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.)
- Active
Links
Images
Abstract
The invention relates to an anti-leak structure of hydraulic engineering, with high adaptation to the dam deformation, wherein the invention uses metallic sheet with better extending property to be welded into the dam anti-leak layer; the bottom of anti-leak layer and the basic anti-leak device form the anti-leak connection, to support building dam on rock base and covering layer, to save cost and shorten producing time. And the invention can be used in panel stack stone dam and core wall stack stone dam.
Description
Technical field
The present invention relates to the water seepage prevention structure in a kind of water seepage prevention structure, especially rockfill dam project that is used on the Hydraulic and Hydro-Power Engineering.
Background technology
Developing hydraulic power potentials energetically is current China important energy strategic development policy.It is with a long history to adopt local material to build the construction of dam, have gather materials on the spot, advantages such as, easy construction low, low cost to the geology conditional request, be widely adopted, and had abundant design, construction and operational management experience.
At present, local material dam adopts patterns such as clay homogeneous dam, calculous soil core-wall (sloping core) loose rock dam, Concrete Face Rockfill Dam, pitch core-wall (sloping core) loose rock dam usually, is the first-selection of water power dam design selection, is widely used, and is also very classical.Usually, the antiseepage of dam comprises the anti-dam body seepage that blends in basis.The basis antiseepage normally is provided with basic impervious element in the bottom of dam body and the binding site of the dam foundation, and basic impervious element is usually by directly being built in concrete junction plate, concrete pedestal or the concrete toe board etc. on batholith or the covering layer basis and being arranged on the impervious wall of concrete junction plate, concrete pedestal or concrete toe board bottom and the body that is in the milk constitutes; The antiseepage of dam body normally is provided with face slab for water retaining on the upstream face of dam body.When adopting calculous soil core-wall (sloping core) to build high dam, the needed impervious material consumption of its panel is big, haul distance is far away, its quality does not also often satisfy the requirement of building a dam, blending technology is not only complicated, also need the place of certain area, and is also of a specified duration to the time of the exploration of antiseepage earth material, experimental study, building a dam fetches earth also often causes plough occupied, involve a large amount of immigrants and relate to soil erosion, delayed the hydroelectric development process to a certain extent; Adopt when building a dam on the local material basement rock, often preferentially select Concrete Face Rockfill Dam, be about to the concrete rigid slab and be placed in the antiseepage that is used as whole dam body on the dam body upstream face, but after the dam embankment height surpasses 200m, because the deflection of rockfill is bigger under water pressure and self-gravity action, all side seam sealings and panel crack often become design, the maximum hidden danger of operation, and the crack of causing for the inhomogeneous deformation sedimentation that reduces the dam body enrockment etc. is to the influence of dam body operation, must just can further construct after a period of time in its natural subsidence of dam body enrockment completion relief, build the dam cycle thereby prolonged.Loose rock dam dam body seepage 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 the deep covering layer is limited, the stress of impervious wall can't accurately calculate with existing theory, to the material requirements height, influenced by the construction speed arrangement, it also is the new problem that needs research and solve that impervious wall and core-wall joints structure form adopt.
Make full use of scientific research, design and the practical result of local material dam, actively in the face of and dare to breaking through a water power dam construction technique difficult problem, start with from dam body seepage form and material, research and propose can satisfy build a dam, the novel dam of stressed and structural requirement, be the ideal that each hydroelectric project teacher dreams of.
Summary of the invention
Technical problem to be solved by this invention provides a kind of being used for can be to the strong water seepage prevention structure that also can improve whole barrier performance of dam deformation compliance on the Hydraulic and Hydro-Power Engineering.
The present invention solves the technical scheme that the core technology problem adopted: this is used for the water seepage prevention structure on the Hydraulic and Hydro-Power Engineering dam, be to be provided with basic impervious element in the bottom of dam body and the binding site of the dam foundation, dam body is provided with from dam crest and extends to dam body seepage layer at the bottom of the dam, the dam body seepage layer constitutes antiseepage with basic impervious element and is connected, and it is characterized in that: the metal sheet that the dam body seepage layer adopts is welded into overall structure.Metal sheet adopts durability, ductility better, the metal sheet that intensity is higher, thus the metal sheet performance that extends preferably utilized, the distortion of dam body is compensated, strengthen the compliance of its dam body seepage layer, thereby improve its whole barrier properties and durability dam deformation.
As to further improvement in the technical proposal, metal sheet comprises straight plate and corrugated sheet, and straight plate and corrugated sheet space also are welded as a whole, thereby utilizes the bigger ductility of corrugated sheet and be out of shape the distortion that compliance adapts to and compensate dam body.
As to further improvement in the technical proposal, the metal sheet of making the dam body seepage layer is copper coin, corrosion resistant plate or other metal material.
The invention has the beneficial effects as follows: when building high dam on complex foundation, the dam deformation amount is big, inhomogeneous deformation problem, seepage prevention of dam founda body stress problem etc. are very outstanding.Owing to adopted the dam body seepage layer of ductility preferred metal slab integral welding production, can reliably be connected with peripheral leakage preventing structure preferably, make its all side seam sealing convenient and reliable.Metal sheet is copper coin and corrosion resistant plate has good endurance, advantages such as ductility is good, corrosion resistance is strong, intensity is higher, welding procedure maturation especially, in traditional leakage preventing structure, copper sheet or other rigidity thin plates are only selected for use as the structural joint sealing for a long time, the dam body seepage layer that the present invention adopts the metal sheet integral solder to make, avoid the formation of structural joint, reduced the link of antiseepage.With metal sheet especially subwave card dam deformation is compensated, also can effectively avoid dam body seepage layer tension to form the crack, it is strong that the dam body seepage layer that metal sheet is made adapts to the dam deformation ability, can satisfy on the basement rock and the requirement of building high dam on the covering layer, can effectively save construction investment.To building high loose rock dam on the covering layer; concrete cut can be placed on outside the dam body; simple in structure; structure stress is clear and definite, also is protected for the seepage prevention of dam founda system construction has won the time, construction quality is easier, also can reduce calculous soil material consumption; can reduce cultivated land occupancy, reduce immigrant's resettlement and reduce vegetation deterioration; save the dam body heap amount of building, save construction investment, help the protection of environment.The present invention's construction restraining factors in the process of implementing are few, can reduce the time and the expense of stock ground exploration, material laboratory test and field compaction test, save design is taken greatly, the technical barrier of building high loose rock dam on the deep covering layer that present this area is generally run into is readily solved, the comprehensive technology economic indicator is good, is suitable for using in rock and core wall rockfill dam engineering.
Description of drawings
Fig. 1 is the cross sectional representation that the present invention is used for rock.
Fig. 2 is the local enlarged diagram at A place among Fig. 1.
Fig. 3 is the local enlarged diagram at B place among Fig. 1.
Fig. 4 is the cross sectional representation that the present invention is used for core wall rockfill dam.
Fig. 5 is the local enlarged diagram at C place among Fig. 4.
Fig. 6 is the local enlarged diagram at D place among Fig. 4.
Be labeled as among the figure: dam body 1, basic impervious element 2, dam body seepage layer 3, straight plate 4, corrugated sheet 5, concrete toe board 6, concrete gallery 7.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
As Fig. 1～shown in Figure 6, the present invention is used for the water seepage prevention structure on the Hydraulic and Hydro-Power Engineering, the antiseepage on dam body basis is that the binding site at the bottom of dam body 1 and the dam foundation is provided with basic impervious element 2, and basic impervious element 2 is made up of the concrete cut and the grouted cut off wall that are built in concrete toe board 6 on the covering layer basis or concrete junction plate, concrete gallery 7, concrete pedestal etc. and its underpart.The antiseepage of dam body 1 is that dam body 1 is provided with from dam crest and extends to dam body seepage layer 3 at the bottom of the dam, and dam body seepage layer 3 constitutes antiseepages with basic impervious element 2 and is connected.In order to improve the adaptive capacity to dam deformation, dam body seepage layer 3 of the present invention adopts the good metal sheet integral solder of ductility to form, and is used for the water seepage prevention of dam body 1, thereby forms whole water seepage prevention structure.Be welded as whole metal sheet and also can effectively avoid existing dam body seepage panel to produce the hidden danger in crack easily because of dam deformation, thereby improve the whole barrier performance of dam body 1.
The metal sheet of making dam body seepage layer 3 can adopt good endurance, ductility is good, corrosion resistance is strong, intensity is higher metal material to make, and for example adopts copper coin or corrosion resistant plate, and the thickness of copper coin or corrosion resistant plate is good with 2～10mm.
Usually adopt anchoring type to be connected between the dam body seepage layer 3 that metal sheet is made and the basic impervious element 2, be about to be inserted into basic impervious element 2 interior certain depths bottom the metal sheet, thereby form reliable antiseepage syndeton.
Embodiment 1: as Fig. 1～shown in Figure 3 is the water seepage prevention structure that the present invention is used for rock, be on the basis of said structure form, the dam body seepage layer 3 of corrosion resistant plate making is arranged on the place, bottom of the upstream face of dam body 1, at the bottom of extending to the dam, dam crest forms face slab for water retaining, basis impervious element 2 be arranged on dam body 1 upstream face the bottom and with the bottom position corresponding section of dam body seepage layer 3, the bottom of corrosion resistant plate is inserted into that to be approximately 1m in the steel concrete toe board 6 dark.
Embodiment 2: as Fig. 4～shown in Figure 6 is the water seepage prevention structure that the present invention is used for core wall rockfill dam, be on the basis of said structure form, the dam body seepage layer 3 that copper coin is made is arranged on formation watertight core in the dam body 1, basis impervious element 2 be arranged on dam body 1 bottom and with the bottom position corresponding section of dam body seepage layer 3, the bottom of copper coin is inserted into that approximately 0.5m are dark in the steel concrete gallery 7.
Claims (7)
1, is used for water seepage prevention structure on the Hydraulic and Hydro-Power Engineering, be provided with basic impervious element (2) in the bottom of dam body (1) and the binding site of the dam foundation, dam body (1) is provided with from dam crest and extends to dam body seepage layer (3) at the bottom of the dam, dam body seepage layer (3) constitutes antiseepage with basic impervious element (2) and is connected, it is characterized in that: the metal sheet that dam body seepage layer (3) adopts is welded into overall structure, metal sheet comprises straight plate (4) and corrugated sheet (5), and straight plate (4) and corrugated sheet (5) space also are welded as a whole.
2, the water seepage prevention structure that is used on the Hydraulic and Hydro-Power Engineering as claimed in claim 1 is characterized in that: dam body seepage layer (3) adopts copper coin to make.
3, the water seepage prevention structure that is used on the Hydraulic and Hydro-Power Engineering as claimed in claim 2, it is characterized in that: copper plate thickness is 2～10mm.
4, the water seepage prevention structure that is used on the Hydraulic and Hydro-Power Engineering as claimed in claim 1 is characterized in that: dam body seepage layer (3) adopts corrosion resistant plate to make.
5, the water seepage prevention structure that is used on the Hydraulic and Hydro-Power Engineering as claimed in claim 4, it is characterized in that: corrosion resistant plate thickness is 2～10mm.
6, as claim 1,2,3, the 4 or 5 described water seepage prevention structures that are used on the Hydraulic and Hydro-Power Engineering, it is characterized in that: dam body seepage layer (3) is arranged on the upstream face of dam body (1) and forms face slab for water retaining, basic impervious element (2) be arranged on dam body (1) upstream face the bottom and with the bottom position corresponding section of dam body seepage layer (3).
7, as claim 1,2,3, the 4 or 5 described water seepage prevention structures that are used on the Hydraulic and Hydro-Power Engineering, it is characterized in that: dam body seepage layer (3) is arranged on and forms watertight core in the dam body (1), basic impervious element (2) be arranged on dam body (1) bottom and with the bottom position corresponding section of dam body seepage layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100212975A CN100513699C (en) | 2006-06-29 | 2006-06-29 | Seepage-proof structure for water conservancy and hydroelectric project |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100212975A CN100513699C (en) | 2006-06-29 | 2006-06-29 | Seepage-proof structure for water conservancy and hydroelectric project |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1884705A CN1884705A (en) | 2006-12-27 |
| CN100513699C true CN100513699C (en) | 2009-07-15 |
Family
ID=37583005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100212975A Active CN100513699C (en) | 2006-06-29 | 2006-06-29 | Seepage-proof structure for water conservancy and hydroelectric project |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100513699C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200885B (en) * | 2007-12-21 | 2010-11-10 | 中国水电顾问集团成都勘测设计研究院 | Earth-rock dam deep-base seepage-control water-stopping structure for water conservancy and hydropower project |
| CN101942820A (en) * | 2010-10-09 | 2011-01-12 | 中国水电顾问集团成都勘测设计研究院 | Impervious structure of arch dam and construction method thereof |
| CN107044131A (en) * | 2017-04-26 | 2017-08-15 | 中国电建集团西北勘测设计研究院有限公司 | A kind of anti-seepage method of deep covering layer |
| CN109281330A (en) * | 2018-10-11 | 2019-01-29 | 青海大学 | A kind of osmotic control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080010A (en) * | 1992-06-08 | 1993-12-29 | 辽宁省水利水电科学研究所 | The construction method of the composite geo-membrane heart (tiltedly) wall earth dam |
| CN2387142Y (en) * | 1999-09-30 | 2000-07-12 | 南京晨光东螺波纹管有限公司 | Stainless steel corrugated sealing up sheet for concrete slab dam |
| CN1473994A (en) * | 2003-07-31 | 2004-02-11 | 辉 黄 | Movable combined flood cut-off dam |
| CN2652997Y (en) * | 2002-11-13 | 2004-11-03 | 谷春太 | Steel surface stone dam |
-
2006
- 2006-06-29 CN CNB2006100212975A patent/CN100513699C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080010A (en) * | 1992-06-08 | 1993-12-29 | 辽宁省水利水电科学研究所 | The construction method of the composite geo-membrane heart (tiltedly) wall earth dam |
| CN2387142Y (en) * | 1999-09-30 | 2000-07-12 | 南京晨光东螺波纹管有限公司 | Stainless steel corrugated sealing up sheet for concrete slab dam |
| CN2652997Y (en) * | 2002-11-13 | 2004-11-03 | 谷春太 | Steel surface stone dam |
| CN1473994A (en) * | 2003-07-31 | 2004-02-11 | 辉 黄 | Movable combined flood cut-off dam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1884705A (en) | 2006-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208650073U (en) | Cut and cover method subaqueous tunnel steel sheet-pile cofferdam construction | |
| CN2918533Y (en) | Embankment seepage preventing structure | |
| CN205314116U (en) | Continuous type of combined type drilling cling compound structure | |
| CN100513699C (en) | Seepage-proof structure for water conservancy and hydroelectric project | |
| CN102852121B (en) | Artificial composite foundation for building clay core rock-fill dam on deep overburden and construction method for artificial composite foundation | |
| CN102926328B (en) | Bridge waterside foundation pit excavation and support method and support wall structure | |
| CN202323957U (en) | Stiff composite soil nail supporting structure for soft soil area | |
| CN207537975U (en) | Deep covering layer top panel Rockfill Dam based moisture barrier structure | |
| CN212335975U (en) | Pre-stabbed mattress layer of composite foundation pile top of building | |
| CN106555399A (en) | A kind of carbonate rock area Pulling-Resistant Anchor Rod slip casting drainage arrangement and its construction method | |
| CN208328991U (en) | A kind of support anti-floating system of pipe gallery | |
| CN205662918U (en) | Wind amasss husky spiral piling bar structure | |
| CN206035045U (en) | Prefabricated assembled underground granary of endocyst plastics | |
| CN205062744U (en) | Half gravity type two -stage view anti -flood wall on half cantilever | |
| CN113123301A (en) | Partition structure of gravel soil core wall dam | |
| CN202899090U (en) | Circular-arc-shaped concrete core wall earth and rockfill dam | |
| CN210288408U (en) | Foundation pit supporting structure | |
| CN206448270U (en) | A kind of carbonate rock area Pulling-Resistant Anchor Rod slip casting drainage arrangement | |
| CN107964975B (en) | Construction method of PBL (Poly-p-phenylene benzobisoxazole) shear force key connection structure of steel pipe composite pile and bearing platform | |
| CN102031821B (en) | Pile-wall type draining hole of circular water of seaside power plant with soft soil foundation | |
| CN201883449U (en) | Sea wall structure of compound pile | |
| CN201473921U (en) | Structure form used for reinforcing revetments of watercourse | |
| CN106854864A (en) | Port engineering platoon formula prestressed reinforced concrete Big Pipe Pile new construction | |
| CN201089888Y (en) | Sinking well type circular cylinder structure of seaport project | |
| CN206035044U (en) | Prefabricated assembled underground granary of plastic cover echelonment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTI Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF CHINA HYDROPOWER CONSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610072 Sichuan city of Chengdu province's North Road No. Patentee after: Chengdu Hydroelectric Investigation & Design Institute of SPC Address before: 610072 Sichuan city of Chengdu province's North Road No. Patentee before: Chengdu Hydroelectric Investigation & Design Institute of China Hydropower Consu |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER GROUP CHENGDU INVESTIGATION DESIGN + R Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF SPC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610072 Sichuan city of Chengdu province's North Road No. Patentee after: Co., Ltd of Chengdu survey and design academy of electricity Jian group of China Address before: 610072 Sichuan city of Chengdu province's North Road No. Patentee before: Chengdu Hydroelectric Investigation & Design Institute of SPC |