CN203113359U - Earth rock cofferdam structure - Google Patents
Earth rock cofferdam structure Download PDFInfo
- Publication number
- CN203113359U CN203113359U CN 201320121707 CN201320121707U CN203113359U CN 203113359 U CN203113359 U CN 203113359U CN 201320121707 CN201320121707 CN 201320121707 CN 201320121707 U CN201320121707 U CN 201320121707U CN 203113359 U CN203113359 U CN 203113359U
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- cofferdam
- seepage
- filling body
- vertical
- horizontal part
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Abstract
The utility model discloses an earth rock cofferdam structure which is beneficial to shortening a construction period and reducing engineering cost. The earth rock cofferdam structure comprises a cofferdam filling body, an anti-seepage body and a vertical anti-seepage wall are arranged inside the cofferdam filling body, the anti-seepage body comprises an inclined part and a horizontal part, one end of the horizontal part is connected with the low end of the inclined part, the vertical anti-seepage wall is close to an upstream side of the cofferdam filling body, the top end of the vertical anti-seepage wall is connected with the other end of the horizontal part of the anti-seepage body, an anti-seepage structure is formed by the anti-seepage body and the vertical anti-seepage wall, and the anti-seepage structure is used for preventing water from permeating to a downstream side from the upstream side of the cofferdam filling body. The structure is beneficial to quick construction of an earth rock cofferdam, meanwhile, for the construction of hydraulic and hydroelectric engineering of a large flow watercourse with deep covering layer of a narrow river valley, an earth rock cofferdam with higher height can be used, the scale of a river diversion and water release structure can be reduced, and engineering investment is saved.
Description
Technical field
The utility model relates to a kind of cofferdam structure, relates in particular to a kind of earth-rock cofferdam structure.
Background technology
In Hydraulic and Hydro-Power Engineering is built, the cofferdam often need be set in the river course ensure the dry work of dam foundation ditch with dash.River course for some narrow river valley deep covering layers generally adopts earth rock cofferdam.Existing earth-rock cofferdam structure comprises the cofferdam filling body, and filling body inside, cofferdam is provided with antiseepage body and vertical impervious wall, and the antiseepage body is vertically to arrange, and vertical impervious wall links to each other with the antiseepage body and forms leakage preventing structure.Because conventional antiseepage body and impervious wall all are vertically to arrange, therefore when construction, again cofferdam filling body and inner antiseepage body are constructed after needing earlier impervious wall construction to be finished, again because this earth rock cofferdam covering layer is deep, the foundation treatment engineering amount is big, therefore in a dry season, be difficult to finish, often need to finish by stages.If for the reduction of erection time just need reduce the cofferdam height.But the cofferdam height is more low, and the water level that can keep out is also just more low, and water conservancy diversion outlet structure escape works scale is just more big, and its economy is more low.
The utility model content
The technical problem that the utility model solves provides a kind of earth-rock cofferdam structure that is conducive to the reduction of erection time.
The technical scheme that its technical problem that solves the utility model adopts is: earth-rock cofferdam structure, comprise the cofferdam filling body, filling body inside, cofferdam is provided with antiseepage body and vertical impervious wall, described antiseepage body comprises rake and horizontal part, one end of described horizontal part links to each other with the lower end of rake, described vertical impervious wall links to each other with the other end of the horizontal part of antiseepage body near the top of meet water side and the vertical impervious wall of cofferdam filling body, and described antiseepage body is formed for anti-sealing by the leakage preventing structure of the side direction land side infiltration that meets water of cofferdam filling body jointly with vertical impervious wall.
Further be: the rake of described antiseepage body comprises the tilting section that links to each other with horizontal part and vertical section of linking to each other with the top of tilting section, and described vertical section top extends to the top of cofferdam filling body.
The beneficial effects of the utility model are: be conducive to the earth rock cofferdam rapid construction, construct for the big flow of deep covering layer river course, narrow river valley Hydraulic and Hydro-Power Engineering simultaneously, can adopt highly higher earth rock cofferdam, dwindle water conservancy diversion outlet structure escape works scale, save construction investment.
Description of drawings
Fig. 1 is the cross sectional representation of earth-rock cofferdam structure of the present utility model;
Fig. 2 is the build mode schematic diagram of earth-rock cofferdam structure of the present utility model;
Be labeled as among the figure: cofferdam filling body 1, horizontal part 2, tilting section 3, vertical section 4, vertical impervious wall 5, A district 6, B district 7, C district 8, antiseepage body 9, the side 10 that meets water, land side 11, rake 12.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As depicted in figs. 1 and 2, earth-rock cofferdam structure of the present utility model, comprise cofferdam filling body 1, filling body 1 inside in cofferdam is provided with antiseepage body 9 and vertical impervious wall 5, described antiseepage body 9 comprises rake 12 and horizontal part 2, one end of described horizontal part 2 links to each other with the lower end of rake 12, described vertical impervious wall 5 links to each other with the other end of the horizontal part 2 of antiseepage body 9 near the top of meet water side 10 and the vertical impervious wall 5 of cofferdam filling body 1, and described antiseepage body 9 is formed for anti-sealing by the leakage preventing structure of side 10 to land side 11 infiltrations that meet water of cofferdam filling body jointly with vertical impervious wall 5.During construction, as shown in Figure 2, can build A district 6 earlier, form vertical impervious wall 5 operation platforms, because vertically impervious wall 5 is arranged on the side 10 that meets water of cofferdam filling body, so can when A district 6 builds vertical impervious wall 5, build B district 7, so significantly reduction of erection time.Build C district 8 at last, finish the build of earth rock cofferdam.
On the basis of the above, in order to reduce the volume of cofferdam filling body, be conducive to the further reduction of erection time, the rake 12 of described antiseepage body 9 comprises the tilting section 3 that links to each other with horizontal part 2 and vertical section 4 of linking to each other with the top of tilting section 3, and described vertical section 4 top extends to the top of cofferdam filling body 1.Adopt said structure, owing to comprise vertical section 4, therefore under the situation that guarantees cofferdam filling body height, can reduce the width of the cross section of cofferdam filling body, and then be conducive to the further reduction of erection time, save engineering cost.
Claims (2)
1. earth-rock cofferdam structure, comprise cofferdam filling body (1), cofferdam filling body (1) inside is provided with antiseepage body (9) and vertical impervious wall (5), it is characterized in that: described antiseepage body (9) comprises rake (12) and horizontal part (2), one end of described horizontal part (2) links to each other with the lower end of rake (12), the side that meets water (10) of the close cofferdam filling body (1) of described vertical impervious wall (5) and the top of vertical impervious wall (5) link to each other with the other end of the horizontal part (2) of antiseepage body (9), and described antiseepage body (9) is formed for the leakage preventing structure that anti-sealing is permeated to land side (11) by the side that meets water (10) of cofferdam filling body jointly with vertical impervious wall (5).
2. earth-rock cofferdam structure as claimed in claim 1, it is characterized in that: the rake (12) of described antiseepage body (9) comprises the tilting section (3) that links to each other with horizontal part (2) and vertical period (4) that link to each other with the top of tilting section (3), and the top of described vertical section (4) extends to the top of cofferdam filling body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121707 CN203113359U (en) | 2013-03-18 | 2013-03-18 | Earth rock cofferdam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121707 CN203113359U (en) | 2013-03-18 | 2013-03-18 | Earth rock cofferdam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203113359U true CN203113359U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320121707 Expired - Lifetime CN203113359U (en) | 2013-03-18 | 2013-03-18 | Earth rock cofferdam structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203113359U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314089A (en) * | 2014-11-10 | 2015-01-28 | 中国水利水电第十四工程局有限公司 | Method for composite geo-membrane sloping core cofferdam |
| CN105839653A (en) * | 2016-05-18 | 2016-08-10 | 中铁隧道集团二处有限公司 | Construction method for reconstructing cofferdam anti-seepage system in immersed tube tunnel |
| CN106836035A (en) * | 2017-04-07 | 2017-06-13 | 中国矿业大学 | A kind of cofferdam dam filling construction for being applicable existing culvert under spoil embankment |
-
2013
- 2013-03-18 CN CN 201320121707 patent/CN203113359U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314089A (en) * | 2014-11-10 | 2015-01-28 | 中国水利水电第十四工程局有限公司 | Method for composite geo-membrane sloping core cofferdam |
| CN105839653A (en) * | 2016-05-18 | 2016-08-10 | 中铁隧道集团二处有限公司 | Construction method for reconstructing cofferdam anti-seepage system in immersed tube tunnel |
| CN105839653B (en) * | 2016-05-18 | 2018-06-08 | 中铁隧道集团二处有限公司 | A kind of immersed tube tunnel rebuilds the construction method of seepage prevention of cofferdam system |
| CN106836035A (en) * | 2017-04-07 | 2017-06-13 | 中国矿业大学 | A kind of cofferdam dam filling construction for being applicable existing culvert under spoil embankment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: HYDROCHINA CHENGDU ENGINEERING Corp. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: POWERCHINA Chengdu Engineering Corporation Limited |
|
| 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: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: POWERCHINA Chengdu Engineering Co.,Ltd. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: HYDROCHINA CHENGDU ENGINEERING Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |