CN109356097A - The water discharge tunnel makeup of the imports for ditch water process - Google Patents
The water discharge tunnel makeup of the imports for ditch water process Download PDFInfo
- Publication number
- CN109356097A CN109356097A CN201811443958.2A CN201811443958A CN109356097A CN 109356097 A CN109356097 A CN 109356097A CN 201811443958 A CN201811443958 A CN 201811443958A CN 109356097 A CN109356097 A CN 109356097A
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- China
- Prior art keywords
- channel
- water discharge
- discharge tunnel
- water
- approach
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- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of water discharge tunnel makeup of the imports for ditch water process, belong to the ditch water process field of engineering technology in hydraulic and hydroelectric engineering.The present invention includes natural channel, the side of natural channel is disposed with the water discharge tunnel for being connected to natural channel, the input end of water discharge tunnel is provided with import approach channel, and import approach channel includes approach channel Upstream section and approach channel contraction section, and approach channel Upstream section end is connected by approach channel contraction section with the input end of water discharge tunnel；The side abutment wall of import approach channel passes across natural channel and extends to opposite bank along the bank line arrangement of natural channel, another side wall, so that the base slope of approach channel Upstream section is smoothly connected with the natural channel for being located at water discharge tunnel upstream；The part abutment wall that import approach channel passes across natural channel is set as barrage section approach channel abutment wall, and barrage section approach channel abutment wall is equipped with water-retaining structure.The present invention can reduce water discharge tunnel import barrel height, reduce underwater bed water retaining height, investment reduction.
Description
Technical field
The present invention relates to a kind of water discharge tunnel makeups of the imports for ditch water process, belong to the ditch-water in hydraulic and hydroelectric engineering
Handle field of engineering technology.
Background technique
When high-mountain gorge areas builds building, there is a large amount of waste to need to store, in high-mountain gorge areas, field
Ground is narrow, and utilizable place is limited, often needs to be stored on small-sized river or channel, and occupied river or channel one
As there is water flow to pass through, therefore, need to carry out ditch water process when storing waste.General ditch water process includes water retaining structure water blocking
Dam and discharge construction water discharge tunnel, as shown in Figure 1.Water discharge tunnel is designed generally according to free flow, and discharge capacity passes through weir formula
(1), (2) calculate.
In formula: Q-- tunnel overcurrent flow (m3/s)；M-- discharge coefficient；The bottom width (m) of B-- water section；G-- gravity accelerates
Spend (m/s2)；H1-- tunnel import bottom is with headwater depth (m)；v1For velocity of approach (m/s)；H0-- meter and velocity of approach head
Tunnel entrance head (m).
Traditional design method is blocked channel water flow by checkdam, banked-up water level, so that water discharge tunnel meets design aerial drainage
Ability.Due to traditional inlet design mode, import water flow flow velocity before dam is reduced, former river cannot be made full use of to advance and flowed
Speed increases scupper discharge capacity.Therefore, because the inducer depth of water is big, conventional method checkdam is higher, water discharge tunnel inducer
Barrel height is higher.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of water discharge tunnel makeup of the imports for ditch water process, drop
Low downstream riverbed water retaining height reduces water discharge tunnel import barrel height, investment reduction.
To solve above-mentioned technical problem the technical scheme adopted by the invention is that: the water discharge tunnel import for ditch water process
Structure, including natural channel, the side of natural channel are disposed with the water discharge tunnel for being connected to natural channel, the input end of water discharge tunnel
It is provided with import approach channel, import approach channel includes approach channel Upstream section and approach channel contraction section, and approach channel Upstream section end is shunk by approach channel
Section is connected with the input end of water discharge tunnel；The side abutment wall of import approach channel is along the bank line arrangement of natural channel, another side
Wall passes across natural channel and extends to opposite bank, so that the base slope of approach channel Upstream section and the natural channel for being located at water discharge tunnel upstream are flat
Along linking；The part abutment wall that import approach channel passes across natural channel is set as barrage section approach channel abutment wall, and barrage section approach channel abutment wall is matched
Equipped with water-retaining structure.
Further, one of following two mode can be used in water-retaining structure, barrage section approach channel abutment wall is in downstream side
Native stone checkdam is equipped as water-retaining structure；Either, the ontology of barrage section approach channel abutment wall uses concrete gravity type water blocking
Structure.
Further, import approach channel integrally uses concrete structure.
Further, the input end of water discharge tunnel is arranged in the concave bank of natural channel.
Further, the gradient of import approach channel is bigger than natural channel gradient.
Further, the bottom of water discharge tunnel is equipped with mid-board along water discharge tunnel length direction, so that water discharge tunnel shape
At two water passages, the input end of water discharge tunnel is provided with lock chamber, and twice gate, gate and water passage are provided in lock chamber
It is corresponding one by one.
The beneficial effects of the present invention are: smoothly being extended through the natural channel traditional approach channel toward upstream, traditional
The mode that checkdam is adjusted to weir is arranged in conjunction with approach channel, it is possible to increase the velocity of approach V of import1, reduce tunnel import bottom
With headwater depth H1, significantly reducing reduces underwater bed water retaining height, water discharge tunnel import barrel height, does not repair still further
Build checkdam, investment reduction.
Detailed description of the invention
Fig. 1 is the floor plan of the prior art；
Fig. 2 is floor plan of the invention；
Fig. 3 is facade layout drawing of the invention；
Fig. 4 is one schematic diagram of A-A cross-sectional embodiments of Fig. 2；
Fig. 5 is two schematic diagram of A-A cross-sectional embodiments of Fig. 2；
Fig. 6 is the B-B diagrammatic cross-section of Fig. 3.
Component marks in figure: the natural channel of 1-, 2- water discharge tunnel, 3- import approach channel, 31- approach channel Upstream section, 32- approach channel are received
Contracting section, 33- barrage section approach channel abutment wall, 4- mid-board, 5- lock chamber, 6- gate, 7- soil stone checkdam, 8- ground line.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Fig. 2~Fig. 6, the present invention includes natural channel 1, and the side of natural channel 1 is disposed with the natural channel 1 of connection
Water discharge tunnel 2, the input end of water discharge tunnel 2 is provided with import approach channel 3, and import approach channel 3 includes approach channel Upstream section 31 and approach channel
Contraction section 32,31 end of approach channel Upstream section are connected by approach channel contraction section 32 with the input end of water discharge tunnel 2；Import approach channel 3
Side abutment wall passes across natural channel 1 and extends to opposite bank along the bank line arrangement of natural channel 1, another side wall, so that drawing
The base slope of canal Upstream section 31 is smoothly connected with the natural channel 1 for being located at 2 upstream of water discharge tunnel；Import approach channel 3 passes across natural ditch
The part abutment wall in road 1 is set as barrage section approach channel abutment wall 33, and barrage section approach channel abutment wall 33 is equipped with water-retaining structure.
The present invention on the basis of traditional approach channel, is smoothly extended, approach channel using import approach channel 3 to natural 1 upstream side of channel
Base slope be connected with natural channel 1, in 3 entrance of water discharge tunnel, one section of approach channel contraction section 32 is provided with, having certain traveling
The water flow stationary of flow velocity imports water discharge tunnel 3.The present invention can make the water flow of natural channel 1 by the approach channel that extends swimmingly into
Enter water discharge tunnel 2, reduce natural 1 flow rate of water flow head loss of channel, increases the import velocity of approach of water discharge tunnel 2.
The gradient of natural channel 1 is i0, the gradient of import approach channel 3 is i1, the gradient of water discharge tunnel 2 is
i2.In order to further increase velocity of approach V1, reduce tunnel import bottom with headwater depth H1, the gradient i of import approach channel 31Most
Like the gradient i of natural channel 10Greatly；Meanwhile in order to reduce approach channel roughness and improve the water resistant stream erosion of approach channel, into
Mouth approach channel 3 can integrally use concrete structure.In the case where the import approach channel 3 of big gradient, low roughness guides, the stream of natural channel 1
Speed under the effect of gravity, further increases, so that water discharge tunnel 2 be made to obtain biggish velocity of approach V1, reduce tunnel import
Bottom is with headwater depth H1.Therefore, the hole height and the water retaining height of side along the river of 2 inducer of water discharge tunnel can be reduced.
The abutment wall of import approach channel 3 can be kept off according to actual landform, geological conditions using patch slope concrete structure or gravity type
Wall construction.And for the water-retaining structure of barrage section approach channel abutment wall 33, as shown in figure 4, barrage section approach channel abutment wall 33 is mixed using patch slope
When Xtah Crude Clay structure, barrage section approach channel abutment wall 33 is equipped with native stone checkdam 7 as water-retaining structure, native stone checkdam 7 in downstream side
Two sides side slope need to meet stabilization.In addition, as shown in figure 5, the ontology of barrage section approach channel abutment wall 33 is kept off according to concrete gravity type
It when water-bound, then only needs to connect with concrete floor, concrete gravity type water-retaining structure needs to meet stability requirement.
The input end of water discharge tunnel 2 is preferably arranged within the concave bank of natural channel 1, is conducive to water flow and enters water discharge tunnel 2
Fluidised form adjustment.
Import approach channel 3, water discharge tunnel 2 are connected with each other position between concrete gravity type water-retaining structure and need to perform at sealing
Reason.
If 1 bed load of natural channel is more, interval can be set along 2 length direction of water discharge tunnel in the bottom of water discharge tunnel 2
Wall 4, so that water discharge tunnel 2 forms two water passages, the input end of water discharge tunnel 2 is provided with lock chamber 5, is provided in lock chamber 5
Twice gate 6, gate 6 are corresponding one by one with water passage.It, can be with next road gate 6, unilateral overcurrent, in turn in small flow
Overhaul single-side drainage tunnel 2.
In actual implementation, since 1 flow of natural channel that slag occupies is typically small, cofferdam can be set in the withered phase and directly apply
Work, if necessary, again using modes water conservancy diversion such as culvert pipe.
Claims (7)
1. being used for the water discharge tunnel makeup of the imports of ditch water process, including natural channel (1), the side of natural channel (1) are disposed with
It is connected to the water discharge tunnel (2) of natural channel (1), the input end of water discharge tunnel (2) is provided with import approach channel (3), it is characterised in that:
Import approach channel (3) includes approach channel Upstream section (31) and approach channel contraction section (32), and approach channel Upstream section (31) end is shunk by approach channel
Section (32) is connected with the input end of water discharge tunnel (2)；
The side abutment wall of import approach channel (3) passes across natural channel along the bank line arrangement of natural channel (1), another side wall
(1) opposite bank is extended to, so that the base slope of approach channel Upstream section (31) and the natural channel (1) for being located at water discharge tunnel (2) upstream are smooth
Linking；
The part abutment wall that import approach channel (3) passes across natural channel (1) is set as barrage section approach channel abutment wall (33), barrage section approach channel
Abutment wall (33) is equipped with water-retaining structure.
2. being used for the water discharge tunnel makeup of the imports of ditch water process as described in claim 1, it is characterised in that: barrage section approach channel side
Wall (33) is equipped with native stone checkdam (7) as water-retaining structure in downstream side.
3. being used for the water discharge tunnel makeup of the imports of ditch water process as described in claim 1, it is characterised in that: barrage section approach channel side
The ontology of wall (33) uses concrete gravity type water-retaining structure.
4. being used for the water discharge tunnel makeup of the imports of ditch water process as described in claim 1, it is characterised in that: import approach channel (3)
It is whole to use concrete structure.
5. being used for the water discharge tunnel makeup of the imports of ditch water process as described in claim 1, it is characterised in that: water discharge tunnel (2)
Input end be arranged in the concave bank of natural channel (1).
6. being used for the water discharge tunnel makeup of the imports of ditch water process as described in claim 1, it is characterised in that: import approach channel (3)
Gradient (i1) than natural channel (1) gradient (i0) big.
7. the water discharge tunnel makeup of the imports for ditch water process as described in any one of claim 1 to 6, feature exist
In: the bottom of water discharge tunnel (2) is equipped with mid-board (4) along water discharge tunnel (2) length direction, so that water discharge tunnel (2) forms two
A water passage, the input end of water discharge tunnel (2) are provided with lock chamber (5), and twice gate (6), gate are provided in lock chamber (5)
(6) corresponding one by one with water passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443958.2A CN109356097B (en) | 2018-11-29 | 2018-11-29 | A drainage tunnel import structure for ditch water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443958.2A CN109356097B (en) | 2018-11-29 | 2018-11-29 | A drainage tunnel import structure for ditch water treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356097A true CN109356097A (en) | 2019-02-19 |
| CN109356097B CN109356097B (en) | 2023-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811443958.2A Active CN109356097B (en) | 2018-11-29 | 2018-11-29 | A drainage tunnel import structure for ditch water treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258476A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | High-mountain gorge areas power station ditch water process scupper structure |
| WO2021035374A1 (en) * | 2019-08-30 | 2021-03-04 | 钟炽昌 | Water flow dividing technique for accelerating increase of water flow and increasing water flow pressure for sloping water channel of water tower |
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| CN209429047U (en) * | 2018-11-29 | 2019-09-24 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258476A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | High-mountain gorge areas power station ditch water process scupper structure |
| WO2021035374A1 (en) * | 2019-08-30 | 2021-03-04 | 钟炽昌 | Water flow dividing technique for accelerating increase of water flow and increasing water flow pressure for sloping water channel of water tower |
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|---|---|
| CN109356097B (en) | 2023-09-19 |
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