CN203096696U - High and low composite backwater weir - Google Patents
High and low composite backwater weir Download PDFInfo
- Publication number
- CN203096696U CN203096696U CN2012206699406U CN201220669940U CN203096696U CN 203096696 U CN203096696 U CN 203096696U CN 2012206699406 U CN2012206699406 U CN 2012206699406U CN 201220669940 U CN201220669940 U CN 201220669940U CN 203096696 U CN203096696 U CN 203096696U
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- weir
- dam
- compound
- height according
- choking water
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Abstract
The utility model relates to the technical field of backwater weirs, in particular to a high and low composite backwater weir which is more convenient to build and use. The high and low composite backwater weir comprises high and low dam bodies which are with different elevations and are respectively connected with both sides of a river bed, wherein the high dam body is used for overflowing, and the low dam body is used for normal water flow. A cofferdam is built outside the dam bodies. When the high and low composite backwater weir is built, a diversion channel is unnecessary to build; the high and low composite backwater weir is simple and reasonable in structure and convenient to build and use; and the construction efficiency is improved.
Description
Technical field
The utility model relates to chokes water the weir technical field, relates in particular to a kind of build and uses the compound weir of choking water of height eaily.
Background technology
The conventional weir construction of choking water adopts first construction diversion canal to carry out water conservancy diversion, chokes water the weir construction again.Have construction many, shortcoming such as expense is big consuming time, and,, build very inconvenient for the place that diversion channel can't be set for the site requirements height.
Summary of the invention
The utility model mainly is at the above-mentioned technical problem of existing in prior technology, provides to build and use more conveniently, is subjected to the little compound weir of choking water of height of restriction, place.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the compound weir of choking water of a kind of height, comprise and connect the two sides, riverbed respectively, two the different dam bodys of absolute altitude of high dam and the weir that is used for normal current that are used for overflow, described dam body outside building has the cofferdam.
As preferably, described high dam is provided with reinforces stake.
As preferably, described high dam is provided with impervious barrier.
As preferably, described weir is provided with reinforced gabion.
As preferably, described high dam and weir closure place are provided with concrete and lead wall.
As preferably, described cofferdam comprises piece stone weir body, and the described external side in stone weir is equipped with native rock ballast layer and argillic horizon from the inside to the outside successively.
As preferably, described argillic horizon outer lower portion is equipped with overcoat.
As preferably, described overcoat is double-deck two-row structure.
As preferably, be provided with geomembrane between described native rock ballast layer and the argillic horizon.
The utility model is taked the compound weir of choking water of the different height of two sections dam crest absolute altitudes, and it is convenient to build.Fill between cofferdam to korneforos from riverbed one bank toward another bank during construction, after the high dam that the overflow of a bank is used is built and finished, build the cofferdam closure from another bank, river flows out from the high dam spillwag chute, reduces the level of tail water again, builds weir and closure.In line with economical and practical theory, in conjunction with two dam effect differences, take the compound dam body of native rock ballast, concrete dam body combination, and utilize overcoat, high-pressure rotary-spray, static pressure grouting, geomembrane to carry out the reinforcing anti-seepage design and construction.River is shunted from high dam when flood takes place from the weir surface current at ordinary times.Cofferdam soil rock ballast layer paving geomembrane under water fills the clay antiseepage, domatic employing overcoat bank protection; Weir adopts the real dam body of concrete; High dam adopts native rock ballast dam body, static pressure grouting and high-pressure rotary jet grouting pile reinforcing anti-seepage, the domatic employing reinforced concrete structure in spillwag chute and downstream, downstream toe adopt double-deck double overcoat spats temporarily during passing through, take the reinforced gabion erosion control to reinforce after the weir water flowing; Closure place is established concrete guide wall toe and is completely spread the reinforced gabion erosion control.Therefore, the utility model is simple and reasonable, and build and use are all very convenient, have improved efficiency of construction.
Description of drawings
Accompanying drawing 1 is the compound high dam structural representation of choking water the weir of a kind of height of the utility model.
Accompanying drawing 2 is the compound weir structural representation of choking water the weir of a kind of height of the utility model.
Accompanying drawing 3 is a kind of cofferdam structure schematic diagram of the utility model.
Accompanying drawing 4 is a kind of high and low dam closure structure elevation of the utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail, obviously, described embodiment only is part embodiment of the present utility model.
Embodiment 1:
Referring to accompanying drawing 1～4, the compound weir of choking water of a kind of height of the utility model, comprise and connect the two sides, riverbed respectively, 2 two the different dam bodys of absolute altitude of high dam 1 and the weir that is used for normal current that are used for overflow, described dam body outside building has cofferdam 3, described high dam 1 is provided with the reinforcing stake 7 that high-pressure rotary-spray is built, described high dam 1 is provided with the impervious barrier 8 that static pressure grouting is built, described weir 2 is provided with reinforced gabion 9, described high dam 1 and weir 2 closures place are provided with concrete and lead wall 10, described cofferdam 3 comprises piece stone weir body 4, body 4 outsides, described stone weir are equipped with native rock ballast layer 6 and argillic horizon 11 from the inside to the outside successively, described argillic horizon 11 outer lower portion are equipped with overcoat 5, and described overcoat 5 is double-deck two-row structure, are provided with geomembrane 12 between described native rock ballast layer 6 and the argillic horizon 11.
Fill between cofferdam to korneforos from riverbed one bank toward another bank during construction, after the high dam that the overflow of a bank is used is built and finished, build the cofferdam closure from another bank, river flows out from the high dam spillwag chute, reduces the level of tail water again, builds weir and closure.In line with economical and practical theory, in conjunction with two dam effect differences, take the compound dam body of native rock ballast, concrete dam body combination, and utilize overcoat, high-pressure rotary-spray, static pressure grouting, geomembrane to carry out the reinforcing anti-seepage design and construction.River is shunted from high dam when flood takes place from the weir surface current at ordinary times.Cofferdam soil rock ballast layer paving geomembrane under water fills the clay antiseepage, domatic employing overcoat bank protection; Weir adopts the real dam body of concrete; High dam adopts native rock ballast dam body, static pressure grouting and high-pressure rotary jet grouting pile reinforcing anti-seepage, the domatic employing reinforced concrete structure in spillwag chute and downstream, downstream toe adopt double-deck double overcoat spats temporarily during passing through, take the reinforced gabion erosion control to reinforce after the weir water flowing; Closure place is established concrete guide wall toe and is completely spread the reinforced gabion erosion control.
Therefore, the utility model is simple and reasonable, and build and use are all very convenient, have improved efficiency of construction.
Should be understood that the foregoing description only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (9)
1. compound weir of choking water of height is characterized in that: comprise connecting the two sides, riverbed respectively, be used for (2) two different dam bodys of absolute altitude of high dam (1) and the weir that is used for normal current of overflow, described dam body outside building has cofferdam (3).
2. the compound weir of choking water of height according to claim 1 is characterized in that: described high dam (1) is provided with reinforces stake (7).
3. the compound weir of choking water of height according to claim 1 is characterized in that: described high dam (1) is provided with impervious barrier (8).
4. the compound weir of choking water of height according to claim 1 is characterized in that: described weir (2) is provided with reinforced gabion (9).
5. the compound weir of choking water of height according to claim 1 is characterized in that: described high dam (1) and weir (2) closure place are provided with concrete and lead wall (10).
6. the compound weir of choking water of height according to claim 1 is characterized in that: described cofferdam (3) comprise piece stone weir body (4), and described stone weir body (4) outside is equipped with native rock ballast layer (6) and argillic horizon (11) from the inside to the outside successively.
7. the compound weir of choking water of height according to claim 6 is characterized in that: described argillic horizon (11) outer lower portion is equipped with overcoat (5).
8. the compound weir of choking water of height according to claim 7 is characterized in that: described overcoat (5) is double-deck two-row structure.
9. the compound weir of choking water of height according to claim 6 is characterized in that: be provided with geomembrane (12) between described native rock ballast layer (6) and the argillic horizon (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206699406U CN203096696U (en) | 2012-12-07 | 2012-12-07 | High and low composite backwater weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206699406U CN203096696U (en) | 2012-12-07 | 2012-12-07 | High and low composite backwater weir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096696U true CN203096696U (en) | 2013-07-31 |
Family
ID=48848113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206699406U Expired - Fee Related CN203096696U (en) | 2012-12-07 | 2012-12-07 | High and low composite backwater weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947630A (en) * | 2015-07-02 | 2015-09-30 | 中国电建集团成都勘测设计研究院有限公司 | Over-current slag collecting weir for water conservancy and hydropower engineering and construction method thereof |
| CN105926653A (en) * | 2016-04-27 | 2016-09-07 | 杨毅 | Cofferdam construction method through stone, thick plastic cloth and bagged clay on dam slope of earth and rockfill dam |
-
2012
- 2012-12-07 CN CN2012206699406U patent/CN203096696U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947630A (en) * | 2015-07-02 | 2015-09-30 | 中国电建集团成都勘测设计研究院有限公司 | Over-current slag collecting weir for water conservancy and hydropower engineering and construction method thereof |
| CN105926653A (en) * | 2016-04-27 | 2016-09-07 | 杨毅 | Cofferdam construction method through stone, thick plastic cloth and bagged clay on dam slope of earth and rockfill dam |
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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: 20130731 Termination date: 20201207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |