CN209603101U - Hydropower house tail canal structure - Google Patents
Hydropower house tail canal structure Download PDFInfo
- Publication number
- CN209603101U CN209603101U CN201822074552.3U CN201822074552U CN209603101U CN 209603101 U CN209603101 U CN 209603101U CN 201822074552 U CN201822074552 U CN 201822074552U CN 209603101 U CN209603101 U CN 209603101U
- Authority
- CN
- China
- Prior art keywords
- cofferdam
- construction
- powerhouse
- section
- tailwater channel
- 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.)
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Links
- 238000010276 construction Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Revetment (AREA)
Abstract
The utility model provides a hydropower house tailrace structure, which comprises a tailrace and a construction cofferdam; the draft tube is obliquely and upwards arranged, the front end of the draft tube is provided with a horizontal outlet flat section, the front end of the outlet flat section is provided with a construction cofferdam, and the construction cofferdam is positioned on the bank side of the river. The utility model considers the permanent engineering and the temporary engineering integrally and reasonably adjusts the form of the tailrace, so that the cofferdam water retaining requirement in the construction period is met, and the tailrace has the function in the operation period; the construction is convenient, and the influence on river flood discharge is reduced to the minimum.
Description
Technical field
The utility model relates to a kind of powerhouse of hydropower station tailwater channel structure, the Power Plant tail narrow especially suitable for riverbed
Water channel.
Background technique
Power house along river bank powerhouse of hydropower station tailwater channel usually with exit river oblique at an angle, by workshop size shadow
A part of river of pressure can generally be accounted for by ringing, and tailwater channel bottom plate is the counter-slope with certain slope, by draft tube outlet and underwater bed
It is connected.In the construction of hydropower phase, longitudinal cofferdam need to be set and surround workshop foundation pit, realize the dry work in foundation pit.In tail water riverbed
In the case where broad, cofferdam is narrow river bed to influence less river overcurrent；But in the narrow situation in riverbed, the cofferdam riverbed Zhan Ya
Area is larger, and flow section is not able to satisfy flood passage requirement outside cofferdam, and general countermeasure is to take the method for widening riverbed, in tail water
Canal opposite bank digged with the treatment measures such as supporting, construction cofferdam is removed after the construction at tailwater channel position.
Specifically, there are following difficult or insufficient for tailwater channel construction and operation for riverbed narrow positions:
1. cofferdam, close to riverbed center, cofferdam construction difficulty is big；
2. the problem of digging opposite bank riverbed, being related to a large amount of earthwork evacuations, bring stability of slope, it is possible near influencing
Highway, building stability；
3. cofferdam is affected by streamflow, Anti-seeping technology and surface scour protection project amount are big；
4. tailwater channel end sill often accounts for pressure by cofferdam, could construct after needing to remove cofferdam, construction organization is cumbersome.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of powerhouse of hydropower station tailwater channel structure, the power station
Workshop tailwater channel structure integrally considers permanent works and temporary project, and reasonably adjusts to the form of tailwater channel, makes it
Both construction time cofferdam water retaining requirement had been met, but also with the effect of the tailwater channel of runtime.
The utility model is achieved by the following technical programs.
A kind of powerhouse of hydropower station tailwater channel structure provided by the utility model, including draft tube, construction cofferdam；The tail water
Pipe tilts upward setting, and there is the flat section in horizontal outlet in the front end of draft tube, exports flat section front end setting construction cofferdam, construction cofferdam
Positioned at river bank.
The one side of the flat section in outlet has the counter-slope section tilted upward, and counter-slope section is connected to riverbed.
Cut-pff wall is set in the construction cofferdam.
Cut-pff wall position concrete structure.
Construction cofferdam is reinforced concrete structure.
The direction of outlet flat section to the counter-slope section is consistent with river direction, counter-slope section and riverbed drop-over.
The utility model has the beneficial effects that: permanent works and temporary project are integrally considered, and to the shape of tailwater channel
Formula is reasonably adjusted, and so that it had both been met construction time cofferdam water retaining requirement, but also with the effect of the tailwater channel of runtime；Construction compared with
For convenience, the influence of river course flood is minimized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross section of Fig. 1.
In figure: 1- draft tube, 2- export flat section, 3- counter-slope section, 4- construction cofferdam, 5- cut-pff wall.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of powerhouse of hydropower station tailwater channel structure as shown in Figure 1 and Figure 2, including draft tube 1, construction cofferdam 4；The tail
Water pipe 1 tilts upward setting, and there is the flat section 2 in horizontal outlet in the front end of draft tube 1, exports flat 2 front end of section setting construction cofferdam 4,
Construction cofferdam 4 is located at river bank.
The one side of the flat section 2 in outlet has the counter-slope section 3 tilted upward, and counter-slope section 3 is connected to riverbed.
Cut-pff wall 5 is set in the construction cofferdam 4.
5 concrete structures of the cut-pff wall.
Construction cofferdam 4 is reinforced concrete structure.
The direction of outlet flat section 2 to the counter-slope section 3 is consistent with river direction, counter-slope section 3 and riverbed drop-over.
The utility model as a result:
Draft tube 1 shrinks to bank as far as possible, accounts for or do not account for pressure riverbed less；Draft tube 1 is along bank along river direction arrangement, tail
Rear steering is discharged from draft tube 1 in water, almost the same with riverbed water (flow) direction；Flat 2 floor level of section in the outlet of 1 endpiece of draft tube,
Bottom plate is counter-slope section 3 after steering, with underwater bed drop-over；Construction cofferdam 4 is arranged close to riverbank, is constructed more convenient, and native stone
Square heap is built and seepage control project amount is also smaller；Construction cofferdam 4 has double action, and the construction time is cofferdam, plays water blocking, runtime
As tailwater channel abutment wall, belongs to permanent building, be not required to remove；Construction cofferdam 4 is rock structure, and internal cut-pff wall 5 is mixed
Xtah Crude Clay structure, the mask and erosion control of cofferdam outer layer are reinforced concrete structure.
The utility model specific implementation process is as follows:
1. tentatively drafting 4 position of construction cofferdam, on the one hand construction cofferdam 4 makes heap build project amount as close as possible to river bank
Smaller, it is few on the other hand to occupy riverbed, biggish flow section can be obtained, according to diversion standards design discharge and riverbed width
Tentative calculation goes out suitable elevation of weir crest；
2. heap builds construction cofferdam 4, weir body and Foundation Anti-seepage construction are carried out along axis at 4 top of construction cofferdam, for intercepting
Infiltration of the riverbed into workshop foundation pit, after the completion of Seepage, 4 top of construction cofferdam and upstream face pouring reinforcement concrete into
Row slope protection；
3. excavating workshop (draft tube 1) foundation pit, carries out 1 slope retaining of draft tube and armored concrete pours.
Claims (6)
1. a kind of powerhouse of hydropower station tailwater channel structure, including draft tube (1), construction cofferdam (4), it is characterised in that: the tail water
Pipe (1) tilts upward setting, and there is the flat section in horizontal outlet (2) in the front end of draft tube (1), exports the setting construction of flat section (2) front end
Cofferdam (4), construction cofferdam (4) are located at river bank.
2. powerhouse of hydropower station tailwater channel structure as described in claim 1, it is characterised in that: the side of the flat section (2) in outlet
There is the counter-slope section (3) tilted upward in face, and counter-slope section (3) is connected to riverbed.
3. powerhouse of hydropower station tailwater channel structure as described in claim 1, it is characterised in that: setting in the construction cofferdam (4)
Cut-pff wall (5).
4. powerhouse of hydropower station tailwater channel structure as claimed in claim 3, it is characterised in that: the cut-pff wall (5) is concrete
Structure.
5. powerhouse of hydropower station tailwater channel structure as described in claim 1, it is characterised in that: construction cofferdam (4) is reinforced concrete
Soil structure.
6. powerhouse of hydropower station tailwater channel structure as claimed in claim 2, it is characterised in that: the flat section (2) in outlet to counter-slope
The direction of section (3) is consistent with river direction, counter-slope section (3) and riverbed drop-over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822074552.3U CN209603101U (en) | 2018-12-11 | 2018-12-11 | Hydropower house tail canal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822074552.3U CN209603101U (en) | 2018-12-11 | 2018-12-11 | Hydropower house tail canal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603101U true CN209603101U (en) | 2019-11-08 |
Family
ID=68395670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822074552.3U Active CN209603101U (en) | 2018-12-11 | 2018-12-11 | Hydropower house tail canal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603101U (en) |
-
2018
- 2018-12-11 CN CN201822074552.3U patent/CN209603101U/en active Active
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