CN205604272U - Manger plate cofferdam - Google Patents
Manger plate cofferdam Download PDFInfo
- Publication number
- CN205604272U CN205604272U CN201620291622.9U CN201620291622U CN205604272U CN 205604272 U CN205604272 U CN 205604272U CN 201620291622 U CN201620291622 U CN 201620291622U CN 205604272 U CN205604272 U CN 205604272U
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- fill
- water
- clay core
- cofferdam
- opposite direction
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Abstract
The utility model relates to a water conservancy construction technical field, concretely relates to manger plate cofferdam. Being included in proper order by upstream face to back side and clashing dyke, clay core and fill, the clay core below is equipped with the concrete cut -pff wall, is equipped with the rock revetment layer on the upstream face of dyke, clay core and fill in an opposite direction. Cost is reduced the time, guaranteed the structure in cofferdam, it provides the safety guarantee to construct for low reaches.
Description
Technical field
This utility model relates to water conservancy construction technical field, is specifically related to a kind of water-retaining cofferdam.
Background technology
Cofferdam refers in water conservancy, water transport engineering project, for building permanent water conservancy projects, the provisional building enclosure built.Its effect be prevent water, soil enter building build position, in order at cofferdam internal drainage, excavation pit, build building.
Damming is the key project in construction of hydro project, has certain risk, and cofferdam used in therefore damming needs possess enough safeties.All there is shortcoming in the steadiness in current cofferdam and barrier, for the cofferdam that construction structure is more stable, required materials are complicated, are unfavorable for reducing the cost in water conservancy construction work progress.
Summary of the invention
The purpose of this utility model is to solve described problem, it is provided that a kind of water-retaining cofferdam, for upstream dash, upstream water-retaining cofferdam can provide safety guarantee for the construction in downstream, materials are simple simultaneously, reliable in quality, it is ensured that also reduce construction cost while construction quality.
In order to reach above-mentioned utility model purpose, this utility model by the following technical solutions:
A kind of water-retaining cofferdam, is included dike, clay core wall and fill in an opposite direction by upstream face to back side, is provided with concrete cutoff wall below clay core wall, the upstream face of dike, clay core wall and fill is provided with rock revetment layer in an opposite direction successively.
Preferably, the gradient of dike is 1:2 in an opposite direction, and the gradient of fill is 1:1.2.
Preferably, the thickness of clay core wall is 2-3m.
Preferably, the height of concrete cutoff wall is 3-5m, and thickness is 0.5-2m.
Preferably, dike and fill are excavated material and fill and form in an opposite direction.
Preferably, the thickness of rock revetment layer is 0.5-1m.
Preferably, the width ratio of dike, clay core wall and fill in an opposite direction is 2-2.5:1:3-5.
Preferably, in concrete cutoff wall top embeds clay core wall.
Preferably, it is additionally provided with anti-seepage geotextile layer under the rock revetment layer of fill.
Preferably, concrete cutoff wall is provided with steel sheet pile, and steel sheet pile top is positioned at clay core wall.
This utility model compared with prior art, provides the benefit that: the raw material of cofferdam construction is gathered materials on the spot, and greatly reduces cost.Although cost is reduced, but the structure in this cofferdam is the firmest, provides safety guarantee for downstream construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1 clashes dike, 2 clay core walls, 3 fills, 4 concrete cutoff walls, 5 rock revetment layers, 6 anti-seepage geotextile layers, 7 steel sheet piles.
Detailed description of the invention
Below by specific embodiment, the technical solution of the utility model is further described explanation.
Embodiment:
A kind of water-retaining cofferdam, as it is shown in figure 1, included dike 1, clay core wall 2 and fill 3 in an opposite direction successively by upstream face to back side, is provided with concrete cutoff wall 4 below clay core wall 2, concrete cutoff wall 4 top embeds in clay core wall 2.The upstream face of dike 1, clay core wall 2 and fill 3 is provided with rock revetment layer 5 in an opposite direction, and the rock revetment layer of fill 3 is additionally provided with anti-seepage geotextile layer 65 times.The gradient of dike 1 is 1:2 in an opposite direction, and the gradient of fill 3 is 1:1.2.The width of clay core wall 2 is 2-3m, and the height of concrete cutoff wall 4 is 3-5m, and thickness is 0.5-2m, and the thickness of rock revetment layer 5 is 0.5-1m；The width ratio of dike 1, clay core wall 2 and fill 3 is 2-2.5:1:3-5 in an opposite direction.Concrete cutoff wall 4 is provided with steel sheet pile 7, and steel sheet pile 7 top is positioned at clay core wall 2.
In an opposite direction dike 1 and fill 3 are excavated material and fill and form, and clay core wall 2 is formed by clay compacting,
The raw material major part of this upstream water-retaining cofferdam is gathered materials on the spot, and greatly reduces cost.Although cost is reduced, but the structure in this cofferdam is the firmest, provides safety guarantee for downstream construction.
Claims (10)
1. a water-retaining cofferdam, it is characterized in that, dike (1), clay core wall (2) and fill (3) in an opposite direction is included successively by upstream face to back side, clay core wall (2) lower section is provided with concrete cutoff wall (4), and the upstream face of dike (1), clay core wall (2) and fill (3) is provided with rock revetment layer (5) in an opposite direction.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that the gradient of dike (1) is 1:2 in an opposite direction, and the gradient of fill (3) is 1:1.2.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that the width of clay core wall (2) is 2-3m.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that the height of concrete cutoff wall (4) is 3-5m, and thickness is 0.5-2m.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that dike (1) and fill (3) are excavated material and fill and form in an opposite direction.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that the thickness of rock revetment layer (5) is 0.5-1m.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that the width ratio of dike (1), clay core wall (2) and fill (3) is 2-2.5:1:3-5 in an opposite direction.
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that concrete cutoff wall (4) top embeds in clay core wall (2).
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that be additionally provided with anti-seepage geotextile layer (6) under the rock revetment layer (5) of fill (3).
A kind of water-retaining cofferdam the most according to claim 1, it is characterised in that concrete cutoff wall (4) is provided with steel sheet pile (7), and steel sheet pile (7) top is positioned at clay core wall (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291622.9U CN205604272U (en) | 2016-04-07 | 2016-04-07 | Manger plate cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291622.9U CN205604272U (en) | 2016-04-07 | 2016-04-07 | Manger plate cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205604272U true CN205604272U (en) | 2016-09-28 |
Family
ID=56972799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620291622.9U Expired - Fee Related CN205604272U (en) | 2016-04-07 | 2016-04-07 | Manger plate cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205604272U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368176A (en) * | 2016-11-08 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | High dam structure built on deep overburden of soil material shortage area |
| CN106498902A (en) * | 2016-11-16 | 2017-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Rapid and efficient slope fixing method |
| CN106638471A (en) * | 2017-01-14 | 2017-05-10 | 张众 | Slope protection system for water conservancy and hydropower engineering |
| CN113322904A (en) * | 2021-06-04 | 2021-08-31 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
-
2016
- 2016-04-07 CN CN201620291622.9U patent/CN205604272U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368176A (en) * | 2016-11-08 | 2017-02-01 | 中国电建集团成都勘测设计研究院有限公司 | High dam structure built on deep overburden of soil material shortage area |
| CN106368176B (en) * | 2016-11-08 | 2019-01-01 | 中国电建集团成都勘测设计研究院有限公司 | The high dam structure being built on earth material scarcity area deeply covered layer |
| CN106498902A (en) * | 2016-11-16 | 2017-03-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Rapid and efficient slope fixing method |
| CN106638471A (en) * | 2017-01-14 | 2017-05-10 | 张众 | Slope protection system for water conservancy and hydropower engineering |
| CN113322904A (en) * | 2021-06-04 | 2021-08-31 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
| CN113322904B (en) * | 2021-06-04 | 2022-08-19 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
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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 |
Granted publication date: 20160928 Termination date: 20170407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |