CN205475065U - Tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank - Google Patents
Tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank Download PDFInfo
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- CN205475065U CN205475065U CN201620252697.6U CN201620252697U CN205475065U CN 205475065 U CN205475065 U CN 205475065U CN 201620252697 U CN201620252697 U CN 201620252697U CN 205475065 U CN205475065 U CN 205475065U
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- water inlet
- side slope
- slope
- many holes
- layout structure
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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
- 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
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Abstract
The utility model relates to a water and electricity hydraulic engineering technical field especially relates to a tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank. The utility model discloses a tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank, play sloping line including power station water inlet, flood discharge hole water inlet and approach channel side slope, the power station water inlet is arranged with flood discharge hole water inlet in succession, the approach channel side slope is played sloping line and is leaned on the tower end to set up the straightway, smooth -going linking curve segment behind the straightway. Power station water inlet and flood discharge hole water inlet are arranged in succession, set up the water inlet saving more alone and open the amount of excavation, the approach channel side slope is played sloping line and is adopted " preceding straightway + back curve segment " design, has imported under the hydraulics condition minimize to the excavation and the disturbance of side slope satisfying.
Description
Technical field
This utility model relates to water power hydraulic engineering technical field, particularly relates to a kind of many holes, the narrow river valley of gradient slope bank tower import group
Combination layout structure.
Background technology
Entrenched valley area is high steep along with side slope, and the problems such as river valley is narrow, its slope problem is especially prominent, the stability of side slope
Also change in multiformity, therefore in the hydroelectric station design of entrenched valley area, should try one's best during Duo Dongan tower import group's combined layout
Reduce the excavation to side slope and disturbance.Along with the fast development of Waterpower Resources Development cause in recent years, numerous large-scale, especially big
Type water power hydraulic engineering is positioned at China's Midwest high-mountain gorge areas more, and its power station intake tower is often arranged limited, the most multiplex
On the way with greater need for well-designed during the tunnel such as intake tower such as flood discharging tunnel, diversion tunnel combined layout, at present according to the different spies of each engineering
Point also needs constantly to explore.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of excavation under meeting Inlet water mechanical condition, to side slope
Few with disturbance, engineering operation safety, and many holes, the narrow river valley of gradient slope bank tower import group's combination layout structure that construction investment saves.
This utility model solves many holes, the narrow river valley of gradient slope bank tower import group's combination layout structure that its technical problem is used, bag
Including powerplant intakes, flood discharging tunnel water inlet and approach channel side slope and play slope line, described powerplant intakes is arranged continuously with flood discharging tunnel water inlet,
Described approach channel side slope plays slope line and arranges straightway by tower end, smooth-going linking curved section after straightway.
Further, flood discharging tunnel water inlet is positioned at the outside of powerplant intakes, and the input elevation of flood discharging tunnel water inlet is higher than power station
Water inlet.
Further, arrange near abutment excavation groove inside powerplant intakes.
Further, powerplant intakes inner distance abutment excavation channel opening line 10～40m.
Further, the approach channel side slope before bank tower import group plays slope line and is positioned at powerplant intakes points outside.
Further, described straight line segment length 20～50m.
Further, packway is set at the column foot floor elevation of flood discharging tunnel water inlet, column foot of intaking outside packway with flood discharging tunnel
Points outside is identical.
Further, set structural joint between each tower of powerplant intakes and flood discharging tunnel water inlet, between structural joint, set elastic insert.
Further, described powerplant intakes is consistent with the leading edge of flood discharging tunnel water inlet and trend is parallel to equal pitch contour and arranges.
The beneficial effects of the utility model are: elevation flood discharging tunnel water inlet is close to low elevation powerplant intakes and arranges continuously, fully
Make use of discrepancy in elevation excavation space arranging tower bases, be relatively separately provided water inlet and save earthwork；Approach channel side slope plays slope line and uses " front
Straightway+rear curved section " design, under meeting Inlet water mechanical condition, decrease the excavation to side slope and disturbance as far as possible；Power station is entered
Arrange close proximity to abutment excavation groove inside the mouth of a river, the excavation on side slope can be reduced to greatest extent；Import group's leading edge in many holes is consistent,
Can ensure that import flow-shape is good；Import leading edge trend is parallel to equal pitch contour and arranges, can guarantee that tunnel-face side slope height is minimum, excavation
Measure minimum；This utility model not only ensures engineering operation safety, and cost saving.
Accompanying drawing explanation
Fig. 1 is the floor map of an embodiment of the present utility model；
Fig. 2 is the elevational schematic view of an embodiment of the present utility model；
Fig. 3 is to arrange comparison diagram before and after the import of an embodiment of the present utility model, approach channel and side slope optimize；
Fig. 4 is for velocity profile；
Parts, position and numbering in figure: powerplant intakes 1, flood discharging tunnel water inlet 2, abutment excavation channel opening line 3, approach channel
Side slope plays slope line 4, straightway 41, curved section 42, packway 5, structural joint 6, tunnel-face side slope 8, side slope 9, approach channel side slope
40。
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.At this it should be noted that saying for these embodiments
Bright being adapted to assist in understands this utility model, but is not intended that restriction of the present utility model.
As depicted in figs. 1 and 2, this utility model includes that powerplant intakes 1, flood discharging tunnel water inlet 2 and approach channel side slope play slope line 4,
Described powerplant intakes 1 is arranged continuously with flood discharging tunnel water inlet 2, and described approach channel side slope plays slope line 4 and arranges straightway 41 by tower end,
Smooth-going linking curved section 42 after straightway 41.Approach channel side slope before bank tower import group plays slope line 4 and is positioned at outside powerplant intakes 1
Side point.It is tunnel-face side slope 8 in water inlet downstream, is side slope 9 in water inlet outer side edges, in the party upstream of water inlet outer side edges
To for approach channel side slope 40.Powerplant intakes 1 and flood discharging tunnel water inlet 2 are arranged continuously, are relatively separately provided water inlet saving excavation side
Amount；Approach channel side slope plays slope line 4 and uses " front straightway+rear curved section " to design, it is possible to ensureing that influent stream is tried one's best on the premise of smooth and easy
Reduce the excavation to side slope and disturbance reduces excavated volume, and ensure that influent stream is smooth and easy.Preferably, approach channel side slope plays slope line 4 by tower
End arranges straightway 41 long 20～50m, smooth-going linking curved section 42 after straightway 41.
Specifically, in order to reduce excavated volume further, flood discharging tunnel water inlet 2 is positioned at the outside of powerplant intakes 1, and flood discharging tunnel is intake
The input elevation of mouth 2 is higher than powerplant intakes 1.The flood discharging tunnel water inlet 2 of elevation is close to outside the powerplant intakes 1 of low elevation
Side is arranged continuously, takes full advantage of discrepancy in elevation excavation space and arranges flood discharging tunnel water inlet 2 column foot, is relatively separately provided water inlet saving and opens
Amount of excavation.
Specifically, in order to reduce excavated volume further, arrange near abutment excavation groove inside powerplant intakes 1.Powerplant intakes 1
Inner side is arranged close proximity to abutment excavation channel opening line 3, it is preferred that powerplant intakes 1 inner distance abutment excavation channel opening line
3 about 10～40m.So, the excavation on side slope 9 can be reduced on the premise of ensureing column foot foundation stably safety to greatest extent.
Specifically, smooth and easy in order to ensure flood discharging tunnel import flow-shape, packway 5, packway 5 are set at flood discharging tunnel water inlet 2 elevation
Outside is identical with flood discharging tunnel water inlet column foot points outside.
Specifically, in order to make housing structure consolidate, arrange and set structural joint 6 between each tower of powerplant intakes 1 and flood discharging tunnel water inlet 2,
Elastic insert is set between structural joint 6.This structural joint 6 is suitable for the sedimentation of the tower body of powerplant intakes 1 and flood discharging tunnel water inlet 2
Deformation or temperature deformation.
Specifically, in order to meet good influent stream condition and stability of slope, before described powerplant intakes 1 and flood discharging tunnel water inlet 2
Edge is consistent and trend is parallel to equal pitch contour and arranges.Many holes import group, powerplant intakes 1 is consistent with the leading edge of flood discharging tunnel water inlet 2,
There is not convex body border, it is ensured that import flow-shape is good；Powerplant intakes 1 and flood discharging tunnel water inlet 2 leading edge trend are parallel to
Equal pitch contour is arranged, can guarantee that tunnel-face side slope 8 excavation height is minimum, excavated volume is minimum.From tunnel-face side slope 8, side slope 9, approach channel
Side slope 40 3 direction side slopes control to optimize its boundary conditions to be made it excavate optimum and can meet good influent stream condition and side slope is steady
Fixed.
This utility model not only ensures engineering operation safety, and cost saving.It is particularly well-suited to the steep limit of high-mountain gorge areas
Narrow river valley, slope bank tower intake is arranged in limited water power hydraulic engineering.
Embodiment
Some hydropower station import arrangement
1) overview
Flood discharging tunnel import uses pressure deep water type water inlet, for ensureing the HYDRODYNAMIC CONDITION RELATING TO of import and reducing approach channel slope height as far as possible,
Makeup of the imports layout, approach channel and approach channel side slope are optimized design.First, under conditions of ensureing tower body basis, as far as possible
Import is arranged and is close to side, riverbed, i.e. spandrel groove side.By Inlet water Mechanical Model Test, end elevation, the limit, slope to approach channel
Boundary, horizontal layout have carried out multi-scheme comparative study.For this engineering entrenched valley, the feature of steep side slope, with " weak excavation,
Strong supporting " design concept, optimize PSL ditch ditch left approach channel slope excavating design, use " front straightway+rear curved section " set
Arrange to compare before and after meter import, approach channel and side slope optimization and see Fig. 3.
2) test
Power station import flow-shape and flow velocity
In saving excavation plan, power station and flood discharging tunnel import current lateral intake characteristic are obvious, i.e. exist in import forward position, power station
Lateral current from left to right, then forms certain backflow, but flow velocity is the most little along excavation slope.
In model test, measure power station or the distribution of flood discharging tunnel inlet velocity under saving excavation plan difference water level conditions, see figure
4.From data of velocity distribution, power station inlet velocity is the least, inconspicuous on power station diversion impact.Therefore, from power station diversion
Angle say, save excavation be feasible.
3) effect
After optimized design, slope height reduces about 100m, reduces difficulty of construction, shortens the construction period, and decreases work
Cheng Liang, saves construction investment and reaches 50,000,000 yuan.Approach channel slope construction completion over 5 years Monitoring Result show that side slope is in stable shape
State.
Former sight test shows that import flow-shape is good.
Claims (9)
1. many holes, the narrow river valley of gradient slope bank tower import group's combination layout structure, including powerplant intakes (1), flood discharging tunnel water inlet
And approach channel side slope plays slope line (4) (2), it is characterised in that: described powerplant intakes (1) is continuous with flood discharging tunnel water inlet (2)
Arranging, described approach channel side slope plays slope line (4) and arranges straightway (41) by tower end, and straightway (41) smoothes out linking curved section afterwards
(42)。
The narrow river valley of gradient slope the most according to claim 1 many holes bank tower import group's combination layout structure, it is characterised in that:
Flood discharging tunnel water inlet (2) is positioned at the outside of powerplant intakes (1), and the input elevation of flood discharging tunnel water inlet (2) enters higher than power station
The mouth of a river (1).
The narrow river valley of gradient slope the most according to claim 2 many holes bank tower import group's combination layout structure, it is characterised in that:
Powerplant intakes (1) inner side is arranged near abutment excavation groove.
The narrow river valley of gradient slope the most according to claim 3 many holes bank tower import group's combination layout structure, it is characterised in that:
Powerplant intakes (1) inner distance abutment excavation channel opening line (3) 10～40m.
The narrow river valley of gradient slope the most according to claim 4 many holes bank tower import group's combination layout structure, it is characterised in that:
Approach channel side slope before bank tower import group plays slope line (4) and is positioned at powerplant intakes (1) points outside.
The narrow river valley of gradient slope the most according to claim 5 many holes bank tower import group's combination layout structure, it is characterised in that:
Described straightway (41) long 20～50m.
The narrow river valley of gradient slope the most according to claim 6 many holes bank tower import group's combination layout structure, it is characterised in that:
Packway (5) is set at the column foot floor elevation of flood discharging tunnel water inlet (2), outside packway (5) outside is with flood discharging tunnel water inlet column foot
Side point is identical.
8. according to many holes, the narrow river valley of the gradient slope bank tower import group's combined layout described in any claim in claim 1 to 7
Structure, it is characterised in that: set structural joint (6), structural joint between each tower of powerplant intakes (1) and flood discharging tunnel water inlet (2)
(6) elastic insert is set between.
The narrow river valley of gradient slope the most according to claim 8 many holes bank tower import group's combination layout structure, it is characterised in that:
Described powerplant intakes (1) is consistent with the leading edge of flood discharging tunnel water inlet (2) and trend is parallel to equal pitch contour and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252697.6U CN205475065U (en) | 2016-03-29 | 2016-03-29 | Tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620252697.6U CN205475065U (en) | 2016-03-29 | 2016-03-29 | Tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank |
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| Publication Number | Publication Date |
|---|---|
| CN205475065U true CN205475065U (en) | 2016-08-17 |
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| CN201620252697.6U Active CN205475065U (en) | 2016-03-29 | 2016-03-29 | Tower import crowd combined layout structure of steep narrow many holes of river valley of side slope bank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356097A (en) * | 2018-11-29 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | The water discharge tunnel makeup of the imports for ditch water process |
| CN113073616A (en) * | 2021-03-12 | 2021-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Cavitation erosion prevention design method for long-distance gentle slope non-pressure flood discharge tunnel |
| CN113216072A (en) * | 2021-04-19 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Super-large-flow bank slope type water inlet arrangement structure for space partition layered drainage |
| CN114150631A (en) * | 2021-12-23 | 2022-03-08 | 中国电建集团华东勘测设计研究院有限公司 | Flood discharge hub arrangement method based on river channel capacity |
-
2016
- 2016-03-29 CN CN201620252697.6U patent/CN205475065U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356097A (en) * | 2018-11-29 | 2019-02-19 | 中国电建集团成都勘测设计研究院有限公司 | The water discharge tunnel makeup of the imports for ditch water process |
| CN109356097B (en) * | 2018-11-29 | 2023-09-19 | 中国电建集团成都勘测设计研究院有限公司 | A drainage tunnel import structure for ditch water treatment |
| CN113073616A (en) * | 2021-03-12 | 2021-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Cavitation erosion prevention design method for long-distance gentle slope non-pressure flood discharge tunnel |
| CN113073616B (en) * | 2021-03-12 | 2022-06-14 | 中国电建集团华东勘测设计研究院有限公司 | Cavitation erosion prevention design method for long-distance gentle slope non-pressure flood discharge tunnel |
| CN113216072A (en) * | 2021-04-19 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Super-large-flow bank slope type water inlet arrangement structure for space partition layered drainage |
| CN114150631A (en) * | 2021-12-23 | 2022-03-08 | 中国电建集团华东勘测设计研究院有限公司 | Flood discharge hub arrangement method based on river channel capacity |
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