CN212077859U - Tunnel structure capable of being used for diversion, flood discharge and emptying - Google Patents
Tunnel structure capable of being used for diversion, flood discharge and emptying Download PDFInfo
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- CN212077859U CN212077859U CN202020106959.4U CN202020106959U CN212077859U CN 212077859 U CN212077859 U CN 212077859U CN 202020106959 U CN202020106959 U CN 202020106959U CN 212077859 U CN212077859 U CN 212077859U
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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 discloses a tunnel structure that can be used to water conservancy diversion, flood discharge and unloading, including bottom hole and surface hole flood discharge hole, the bottom hole includes bottom hole induction zone, interlude and export section, is provided with shaft lock chamber section between bottom hole induction zone and the interlude, and surface hole flood discharge hole tail end and bottom hole interlude are linked together, and surface hole flood discharge hole water inlet is higher than the bottom hole water inlet. A tunnel which can be used for diversion, flood discharge and emptying is formed by the bottom hole and the surface hole flood discharge hole, the tunnel is a diversion tunnel built in the dam construction period is rebuilt into a flood discharge and emptying tunnel in the operation period, three purposes in one tunnel are realized, and the land area and space resources are saved.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, a tunnel structure that can be used to water conservancy diversion, flood discharge and unloading is related to.
Background
In the hydraulic engineering construction process, most of projects involve arrangement of a diversion tunnel and a flood discharge tunnel, and some projects also need to be provided with a blow-down tunnel due to special application requirements. The diversion tunnel meets the diversion requirement of a dam in the construction period, generally belongs to a temporary hydraulic building, and is usually plugged or reconstructed in the later period of engineering construction. The flood discharge tunnel is a hydraulic structure for discharging designed flood in the engineering operation period, and the emptying tunnel is a hydraulic structure for emptying reservoir water when a reservoir needs to be overhauled. Generally, the elevations of the inlets of the diversion tunnel and the emptying tunnel are lower, and the elevation of the inlet of the flood discharge tunnel is higher.
At present, a diversion tunnel, a flood discharge and a blow-down tunnel are separately arranged in water conservancy and hydropower engineering, or the diversion tunnel is reconstructed into other hydraulic buildings after the diversion period is finished, so that the corresponding functions are respectively realized, the corresponding engineering requirements are met, the buildings do not influence each other, the required arrangement space is large, the investment is large, and the construction period is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can be used to tunnel structure of water conservancy diversion, flood discharge and unloading, solved current diversion tunnel, flood discharge and the required big problem of space of arranging of unloading hole.
The utility model provides a, a can be used to tunnel structure of water conservancy diversion, flood discharge and unloading, including bottom hole and table hole flood discharge hole, the bottom hole includes bottom hole induction zone, interlude and export section, is provided with the shaft lock chamber section between bottom hole induction zone and the interlude, and table hole flood discharge hole tail end and bottom hole interlude are linked together, and table hole flood discharge hole water inlet is higher than the bottom hole water inlet.
The utility model is also characterized in that,
the middle section of the bottom cave comprises a bottom cave horizontal cave section, a three-fork section and a shared bottom cave body section which are sequentially connected.
The three-branch section comprises a top water inlet, a bottom water inlet and a water outlet.
The surface hole flood spillway tunnel comprises a surface hole inlet section, a surface hole gentle slope section and a surface hole steep slope section which are sequentially connected according to the water flow direction, the axis of the surface hole inlet section is obliquely crossed with the axis of the bottom tunnel, and the surface hole gentle slope section is provided with a plane bend.
The outlet of the steep slope section of the gauge hole is connected with the water inlet at the top of the three-branch section.
The bottom end face of the steep slope section of the surface hole is provided with a tongue-shaped cantilever plate.
The outlet section is an outlet flow picking section.
A deep hole gate is arranged in the vertical shaft gate chamber section.
The beneficial effects of the utility model are that, constitute the tunnel that can be used to water conservancy diversion, flood discharge and unloading through bottom hole and gauge hole flood discharge hole, this tunnel rebuilds the diversion tunnel of building dam construction period into the flood discharge of operation period and the unloading hole simultaneously, has realized "a hole is three functions"; simultaneously add the spillway tunnel of gauge outfit hole, adopt "upstairs" structure, optimize the tunnel size, rationally solved linking problem in the high-speed rivers hole, can realize that spillway tunnel and bottom hole discharge flood simultaneously or each separate flood discharge, practiced thrift area, coordinated under the finite space in different periods to water conservancy diversion, flood discharge, the demand of unloading function, practiced thrift the engineering investment, ensured engineering safety.
Drawings
FIG. 1 is a schematic view of a tunnel structure of the present invention that can be used for diversion, flood discharge and evacuation;
FIG. 2 is a schematic sectional view of a tunnel structure for diversion, flood discharge and evacuation;
fig. 3 is a sectional view a-a of fig. 2.
In the figure, 1, a bottom hole inlet section, 2, a vertical shaft lock chamber section, 3, a bottom hole flat hole section, 4, a three-way intersection section, 5, a shared bottom hole body section, 6, an outlet section, 7, a surface hole inlet section, 8, a surface hole slow slope section, 9, a surface hole steep slope section, 10, a tongue-shaped ram, 11, a bottom hole and 12, a surface hole flood hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a tunnel structure that can be used to water conservancy diversion, flood discharge and unloading refers to fig. 1 and fig. 2, including establishing bottom hole 11 and the surface hole flood discharge hole 12 on reservoir dam next door, bottom hole 11 is used for water conservancy diversion, flood discharge and unloading reservoir, and surface hole flood discharge hole 12 is used for reservoir operation period flood discharge.
The bottom hole 11 comprises a bottom hole inlet section 1, a middle section and an outlet section 6, a vertical shaft lock chamber section 2 is arranged between the bottom hole inlet section 1 and the middle section, a deep hole gate is arranged in the vertical shaft lock chamber section 2, the middle section of the bottom hole 11 comprises a bottom hole flat hole section 3, a three-fork section 4 and a shared bottom hole body section 5 which are sequentially connected, and the outlet section 6 is an outlet trajectory picking section.
The three-way section 4 comprises a top water inlet, a bottom water inlet and a water outlet.
The tail end of the surface hole spillway tunnel 12 is communicated with the middle section of the bottom tunnel 11, and the water inlet of the surface hole spillway tunnel 12 is higher than the water inlet of the bottom tunnel 11. The surface hole flood spillway tunnel 12 comprises a surface hole inlet section 7, a surface hole slope-slowing section 8 and a surface hole slope-steepening section 9 which are sequentially connected according to the water flow direction, the axis of the surface hole inlet section 7 is obliquely crossed with the axis of the bottom tunnel 11, and the surface hole slope-slowing section 8 is provided with a plane bend.
Referring to fig. 3, the outlet of the meter hole steep slope section 9 is connected with the top water inlet of the three-way junction section 4, and the bottom end face of the meter hole steep slope section 9 is provided with a tongue-shaped cantilever plate 10.
The utility model discloses can be used to the use of the tunnel structure of water conservancy diversion, flood discharge and unloading, including following five kinds of operating modes:
the working condition I is as follows: flood discharge operation in diversion period
In the construction period of the reservoir, as the river channel needs to be cut off when a dam is built, the bottom cave 11 is used as a diversion tunnel in the period, and river water is conveyed to a downstream river channel through the bottom cave. The water flow enters the bottom cave from the entrance section 1 of the bottom cave, then flows out of the bottom cave through the vertical shaft lock chamber section 2, the bottom cave flat cave section 3, the three-fork section 4, the shared bottom cave body section 5 and the outlet flow-picking section 6 in sequence, and finally flows to a downstream river channel.
Working conditions are as follows: reservoir emptying operation
After the reservoir is constructed, the reservoir needs to be emptied due to reasons such as maintenance. In the period, the bottom hole 11 is used as a vent hole, a deep-hole gate arranged on the vertical shaft lock chamber section 2 is opened, reservoir water enters the bottom hole 11 from the bottom hole inlet section 1, then flows out of the bottom hole through the vertical shaft lock chamber section 2, the bottom hole flat hole section 3, the three-fork section 4, the shared bottom hole body section 5 and the outlet flow-picking section 6 in sequence, and finally flows to a downstream river channel.
Working conditions are as follows: bottom hole flood discharge operation
After the reservoir is built, flood needs to be released in a flood season, in the period, a bottom hole 11 is used as a flood release hole, a deep-hole gate arranged on a vertical shaft lock chamber section 2 is opened, reservoir water enters the bottom hole 11 from a bottom hole inlet section 1, flows out of the bottom hole through the vertical shaft lock chamber section 2, a bottom hole flat hole section 3, a three-fork section 4, a shared bottom hole body section 5 and an outlet flow-picking section 6 in sequence, and finally flows to a downstream river channel.
Working conditions are as follows: surface-hole flood discharge operation
After the construction of the reservoir is completed, flood needs to be released in a flood season, in the period, the surface hole flood discharging hole 12 is used as a flood discharging hole, the deep hole gate arranged in the vertical shaft gate chamber section 2 is kept in a closed state, flood enters the surface hole flood discharging hole 12 from the surface hole inlet section 7, sequentially passes through the surface hole slope slowing section 8, the surface hole slope steep section 9, the three-fork section 4, the shared bottom hole body section 5 and the outlet drift section 6, and is finally discharged to a downstream river channel.
Working condition five: common flood discharge operation of bottom hole and surface hole flood discharge hole
After the construction of the reservoir is completed, flood needs to be released in the flood season, when flood comes in heavy flood, a deep-hole gate in a vertical shaft lock chamber section 2 is opened locally, flood is controlled to enter a tunnel from a bottom hole inlet section 1 and a surface hole inlet section 2, one path of flood sequentially passes through the bottom hole inlet section 1, the vertical shaft lock chamber section 2 and a bottom hole tunnel section 3 to enter a three-way junction section 4, meanwhile, the other path of flood sequentially passes through a surface hole inlet section 7, a surface hole slope-slowing section 8 and a surface hole slope-steepening section 9 to enter the three-way junction section 4, the flood converged in the three-way junction section 4 flows out of the bottom hole through a shared bottom hole body section 5 and an outlet trajectory-picking section 6, and finally flows to a downstream river channel.
Claims (7)
1. The utility model provides a tunnel structure that can be used to water conservancy diversion, flood discharge and unloading, its characterized in that includes bottom hole (11) and surface hole flood discharge hole (12), and bottom hole (11) are including bottom hole import section (1), interlude and export section (6), be provided with shaft lock chamber section (2) between bottom hole import section (1) and the interlude, surface hole flood discharge hole (12) tail end and bottom hole (11) interlude are linked together, and surface hole flood discharge hole (12) water inlet is higher than bottom hole (11) water inlet.
2. A tunnel structure for diversion, flood discharge and emptying according to claim 1, characterized in that said bottom hole (11) middle section comprises a bottom hole horizontal section (3), a three-way mouth section (4) and a common bottom hole body section (5) connected in sequence.
3. A tunnel structure for diversion, flood discharge and emptying according to claim 2, characterized in that said three-way section (4) comprises a top water inlet, a bottom water inlet and a water outlet.
4. The tunnel structure for diversion, flood discharge and emptying according to claim 3, wherein said surface hole spillway tunnel (12) comprises a surface hole inlet section (7), a surface hole gradual slope section (8) and a surface hole steep slope section (9) which are connected in sequence according to the water flow direction, the axis of the surface hole inlet section (7) is oblique to the axis of the bottom tunnel (11), and the surface hole gradual slope section (8) is provided with a plane bend.
5. A tunnel structure for diversion, flood discharge and emptying according to claim 4, characterized in that the outlet of said steep section (9) of the surface hole is connected to the top inlet of the divergent section (4).
6. A tunnel structure for diversion, flood discharge and emptying according to claim 5, characterized in that tongue-shaped cantilever plates (10) are arranged on the bottom end surface of the steep section (9) of the surface hole.
7. A tunnel structure for flow guidance, flood discharge and emptying according to claim 1, characterised in that deep-hole gates are arranged in the shaft chamber sections (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106959.4U CN212077859U (en) | 2020-01-17 | 2020-01-17 | Tunnel structure capable of being used for diversion, flood discharge and emptying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020106959.4U CN212077859U (en) | 2020-01-17 | 2020-01-17 | Tunnel structure capable of being used for diversion, flood discharge and emptying |
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| CN212077859U true CN212077859U (en) | 2020-12-04 |
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| CN202020106959.4U Active CN212077859U (en) | 2020-01-17 | 2020-01-17 | Tunnel structure capable of being used for diversion, flood discharge and emptying |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982319A (en) * | 2021-03-16 | 2021-06-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Structure and method for conducting diversion, emptying and water taking through dam foundation culvert |
| CN116657561A (en) * | 2023-08-02 | 2023-08-29 | 中水君信工程勘察设计有限公司 | Energy dissipation structure shared by diversion tunnel and spillway |
| CN117708964A (en) * | 2024-02-06 | 2024-03-15 | 陕西省水利电力勘测设计研究院 | Diversion tunnel parameterization design method based on building information model |
-
2020
- 2020-01-17 CN CN202020106959.4U patent/CN212077859U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982319A (en) * | 2021-03-16 | 2021-06-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Structure and method for conducting diversion, emptying and water taking through dam foundation culvert |
| CN116657561A (en) * | 2023-08-02 | 2023-08-29 | 中水君信工程勘察设计有限公司 | Energy dissipation structure shared by diversion tunnel and spillway |
| CN116657561B (en) * | 2023-08-02 | 2023-12-01 | 中水君信工程勘察设计有限公司 | Energy dissipation structure shared by diversion tunnel and spillway |
| CN117708964A (en) * | 2024-02-06 | 2024-03-15 | 陕西省水利电力勘测设计研究院 | Diversion tunnel parameterization design method based on building information model |
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