CN207176628U - A kind of earth and rockfill dam impervious watertight structure - Google Patents
A kind of earth and rockfill dam impervious watertight structure Download PDFInfo
- Publication number
- CN207176628U CN207176628U CN201720400647.2U CN201720400647U CN207176628U CN 207176628 U CN207176628 U CN 207176628U CN 201720400647 U CN201720400647 U CN 201720400647U CN 207176628 U CN207176628 U CN 207176628U
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- China
- Prior art keywords
- dam
- earth
- membrane
- composite geo
- rockfill
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- 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
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Abstract
A kind of earth and rockfill dam impervious watertight structure, including dam body, dam body upstream face are provided with coarse sand bed course, composite geo-membrane one is equipped with coarse sand bed course, it is equipped with blotter on composite geo-membrane one, pouring reinforcement concrete network on blotter, fills out block loose stone in network；The bottom of dam body is provided with the dam foundation, and the dam foundation sets row's rotary churning pile water stopping curtain along axis of dam direction, from the upstream face of dam body to the dam foundation rotary churning pile water stopping curtain above be provided with sand-stone cushion, composite geo-membrane two is equipped with sand-stone cushion；In use, seepage prevention of dam founda water sealing structure collectively forms earth and rockfill dam water seepage prevention system with dam body seepage water sealing structure, composite geo-membrane one forms an entirety with composite geo-membrane two and collectively constitutes earth and rockfill dam antiseepage barrier with rotary churning pile water stopping curtain；The utility model has a preferable globality and simple in construction, life cycle length, the advantages of can effectively preventing earth and rockfill dam seepage.
Description
Technical field
Earth-rock works technical field is the utility model is related to, more particularly to a kind of earth and rockfill dam impervious watertight structure.
Background technology
At present, most of China's reservoir dam structure is earth and rockfill dam, and the seepage control measure of these earth and rockfill dams is most using viscous
Native watertight grouting, clay grouting antiseepage has lower-cost advantage, but its life cycle is shorter, needs re grouting to prevent native stone
Dam structural leakage.In recent years, geomembrane found broad application in earth and rockfill dam antiseepage, but still many problems be present, such as
There is displacement, slid in geomembrane during water storage, and seeping water occurs in the dam foundation.The seepage of earth and rockfill dam is that the main original of dam-break accident occurs
Cause, dam-break accident bring about great losses once the often life to people, property etc. occurs, therefore in order to effectively contain earth and rockfill dam
Seepage, be badly in need of being lifted the anti-seepage effect of existing impervious watertight structure.
The content of the invention
For some shortcomings existing for existing earth and rockfill dam impervious watertight structure, the purpose of this utility model is with providing one kind
Simple in construction, life cycle is grown, and can effectively prevent the earth and rockfill dam impervious watertight structure of seepage.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of earth and rockfill dam impervious watertight structure, including dam body 1, the upstream face of dam body 1 are provided with coarse sand bed course 2, coarse sand bed course 2
On be equipped with composite geo-membrane 1, be equipped with blotter 4 on composite geo-membrane 1, pouring reinforcement coagulation on blotter 4
Native network 5, fill out in network 5 and build loose stone 6；The bottom of dam body 1 is provided with the dam foundation 7, and the dam foundation 7 is set along axis of dam direction
Put row's rotary churning pile water stopping curtain 8, from the upstream face of dam body 1 to the dam foundation 7 rotary churning pile water stopping curtain 8 above be provided with sand
Cobble bed course 9, composite geo-membrane 2 10 is equipped with sand-stone cushion 9.
Described 2 thick 250mm of coarse sand bed course.
Described composite geo-membrane 1 is 500g/m2And use the film of two cloth one, thickness 0.6mm.
Described 4 thick 50mm of blotter.
The thickness of described rotary churning pile water stopping curtain 8 should meet earth and rockfill dam antiseepage requirement and infiltration coefficient is less than 1.0 × 10- 6Cm/s, the depth of the insertion dam foundation 7 is 1.5-2.0m.
Described 6 thick 350mm of loose stone.
Described composite geo-membrane 2 10 wraps up rotary churning pile water stopping curtain apart from the top 500mm of rotary churning pile water stopping curtain 8
8 tops.
The connection of described composite geo-membrane 1 Yu composite geo-membrane 2 10 is welded using double slit heat seal.
The beneficial effects of the utility model：
(1) dam body seepage water sealing structure collectively forms earth and rockfill dam seepage prevention system with seepage prevention of dam founda water sealing structure, and structure is overall
Property it is strong and can effectively prevent earth and rockfill dam seepage, there is remarkable effect for improving the impervious effect of earth and rockfill dam.
(2) met water domatic pouring reinforcement concrete network in dam body, can prevent that composite geo-membrane is domatic along dam body
Slide.Loose stone does not only have press mold effect, while also acts as bank protection effect.
(3) composite geo-membrane has a preferable physical and mechanical property, and with it is corrosion-resistant, anti-aging, barrier performance is good
Advantage.
Brief description of the drawings
Fig. 1 is overall structure profile provided by the utility model.
Fig. 2 is rotary churning pile water stopping curtain top view provided by the utility model.
Fig. 3 is reinforced concrete network top view provided by the utility model.
Embodiment
Narration in detail is made to structural principle of the present utility model and operation principle below in conjunction with the accompanying drawings.
Shown in reference picture 1, Fig. 2, Fig. 3, a kind of earth and rockfill dam impervious watertight structure, including dam body 1, the upstream face of dam body 1 are set
There is coarse sand bed course 2, composite geo-membrane 1 is equipped with coarse sand bed course 2, blotter 4 is equipped with composite geo-membrane 1, it is broken
Pouring reinforcement concrete network 5 on stone bed course 4, fill out in network 5 and build loose stone 6；The bottom of dam body 1 is provided with the dam foundation
7, the dam foundation 7 along axis of dam direction set row's rotary churning pile water stopping curtain 8, from the upstream face of dam body 1 to rotary churning pile water stopping curtain 8 it
Between the top of the dam foundation 7 be provided with sand-stone cushion 9, composite geo-membrane 2 10 is equipped with sand-stone cushion 9.
Described 2 thick 250mm of coarse sand bed course.
Described composite geo-membrane 1 is 500g/m2And use the film of two cloth one, thickness 0.6mm.
Described 4 thick 50mm of blotter.
The thickness of described rotary churning pile water stopping curtain 8 should meet earth and rockfill dam antiseepage requirement and infiltration coefficient is less than 1.0 × 10- 6Cm/s, the depth of the insertion dam foundation 7 is 1.5-2.0m.
Described 6 thick 350mm of loose stone.
Described composite geo-membrane 2 10 wraps up rotary churning pile water stopping curtain apart from the top 500mm of rotary churning pile water stopping curtain 8
8 tops of curtain.
The connection of described composite geo-membrane 1 Yu composite geo-membrane 2 10 is welded using double slit heat seal.
Operation principle of the present utility model：
The impervious watertight structure of the dam foundation 7 collectively forms earth and rockfill dam water seepage prevention system, wherein dam with the impervious watertight structure of dam body 1
The composite geo-membrane 1 of body 1 is formed by welding an entirety and churning with the composite geo-membrane 2 10 on the dam foundation 7 using double slit heat seal
Pile water stopping curtain 8 collectively constitutes earth and rockfill dam antiseepage barrier.Coarse sand bed course 2 and sand-stone cushion 9 all play cushioning effect and can
Prevent composite geo-membrane 3 is pierced from destroying.Blotter 4 can protect composite geo-membrane 1, prevent its Oxidative demage.Reinforcing bar
Filled out in concrete network 5 and build the on the one hand fixed composite geo-membrane of loose stone 6, prevent from sliding, while also function to the work of bank protection
With.
Claims (8)
1. a kind of earth and rockfill dam impervious watertight structure, including dam body (1), it is characterised in that dam body (1) upstream face is provided with coarse sand pad
Layer (2), composite geo-membrane one (3) is equipped with coarse sand bed course (2), blotter (4) is equipped with composite geo-membrane one (3),
Pouring reinforcement concrete network (5) on blotter (4), interior fill out of network (5) build loose stone (6)；The bottom of dam body (1)
Portion is provided with the dam foundation (7), and the dam foundation (7) sets row's rotary churning pile water stopping curtain (8) along axis of dam direction, from meeting water for dam body (1)
Face is provided with sand-stone cushion (9) to the dam foundation (7) top between rotary churning pile water stopping curtain (8), and sand-stone cushion is laid on (9)
There is composite geo-membrane two (10).
A kind of 2. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described coarse sand bed course (2)
Thick 250mm.
A kind of 3. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described composite geo-membrane one
(3) it is 500g/m2And use the film of two cloth one, thickness 0.6mm.
A kind of 4. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described blotter (4)
Thick 50mm.
A kind of 5. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described rotary churning pile water stopping curtain
The thickness of curtain (8) should meet earth and rockfill dam antiseepage requirement and infiltration coefficient is less than 1.0 × 10-6Cm/s, the depth of the insertion dam foundation (7) are
1.5—2.0m。
6. a kind of earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described loose stone (6) is thick
350mm。
A kind of 7. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described composite geo-membrane two
(10) apart from rotary churning pile water stopping curtain (8) top 500mm, and rotary churning pile water stopping curtain (8) top is wrapped up.
A kind of 8. earth and rockfill dam impervious watertight structure according to claim 1, it is characterised in that described composite geo-membrane one
(3) connection with composite geo-membrane two (10) is welded using double slit heat seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400647.2U CN207176628U (en) | 2017-04-17 | 2017-04-17 | A kind of earth and rockfill dam impervious watertight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400647.2U CN207176628U (en) | 2017-04-17 | 2017-04-17 | A kind of earth and rockfill dam impervious watertight structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207176628U true CN207176628U (en) | 2018-04-03 |
Family
ID=61733403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400647.2U Expired - Fee Related CN207176628U (en) | 2017-04-17 | 2017-04-17 | A kind of earth and rockfill dam impervious watertight structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207176628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936704A (en) * | 2018-04-09 | 2020-11-13 | Nk贸易工程有限责任公司 | Dam wall support structure for dam and method for upgrading and/or repairing dam including preventing water leakage |
-
2017
- 2017-04-17 CN CN201720400647.2U patent/CN207176628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936704A (en) * | 2018-04-09 | 2020-11-13 | Nk贸易工程有限责任公司 | Dam wall support structure for dam and method for upgrading and/or repairing dam including preventing water leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20210417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |