CN207092033U - A kind of flood discharging tunnel - Google Patents
A kind of flood discharging tunnel Download PDFInfo
- Publication number
- CN207092033U CN207092033U CN201721072639.6U CN201721072639U CN207092033U CN 207092033 U CN207092033 U CN 207092033U CN 201721072639 U CN201721072639 U CN 201721072639U CN 207092033 U CN207092033 U CN 207092033U
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- lock chamber
- gate
- tunnel
- vertical shaft
- shaft type
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Abstract
The utility model discloses a kind of flood discharging tunnel, including pressurized tunnel, it is arranged at the front end lock chamber of pressurized tunnel upstream end, is arranged at the vertical shaft type lock chamber of pressurized tunnel downstream end, the vertical shaft type lock chamber only sets one of main gate, the front end lock chamber is provided with one of emergency repair gate, and front end lock chamber is identical with vertical shaft type lock chamber cope level.The utility model can save a fan bulkhead gate quantities, can not consider that the range of decrease of head is directly overhauled on the premise of use is not influenceed, more flexible convenience in operation, and operation is also safer.It is favourable to lock chamber Stability Analysis of Structures meanwhile vertical shaft type lock chamber is only separately provided a fan arch gate.Being particularly suitable for use in middle high water head and has longer pressurized tunnel, and pressurized tunnel front end need to set the flood discharging tunnel lock chamber structure of bulkhead gate.
Description
Technical field
The utility model belongs to water power water conservancy project building technical field, and in particular to a kind of flood discharging tunnel.
Background technology
In water power Hydraulic Engineering Design, the effect such as flood discharging tunnel because letting out in advance with low water level, reservoir emptying is frequently as reservoir
The outlet structure escape works facility of joint flood discharge.Flood discharging tunnel hole line is returned the limitations such as groove to need plane to turn by topographic and geologic condition and lower sluicing stream
When curved, turnaround section is frequently with pressurized tunnel pattern.Flood discharging tunnel lock chamber is arranged in pressurized tunnel end, is arranged in using vertical shaft pattern
In massif.
In the prior art, as shown in figure 1, arrangement compared with pressure Tunnel Section 3 flood discharging tunnel be typically separately provided in front end before
End brake room 4, and the dash in short-term when the interior setting bulkhead gate 9 of front end lock chamber 4 is used to overhaul.In vertical shaft type lock chamber 1 except setting work
Make outside gate 2, to prevent equipment from accident occur, emergency use and maintenance need, and can also set emergency repair gate 5 simultaneously.
That is one of main gate 2 with together with of emergency repair gate 5 can be set in vertical shaft type lock chamber 1, therebetween with partition wall 8 every
Open, one of bulkhead gate 9 is set more in front end lock chamber 4 meeting.Following defect be present in existing structure：
1. because the elevation of front end lock chamber is less than the elevation of vertical shaft type lock chamber, the bulkhead gate 9 in the lock chamber of front end needs reservoir
Water level is reduced to low water level or certain elevation and pressurized tunnel could be overhauled, and general opens and closes in hydrostatic, operates
Mode underaction.
2. for the engineering of high water head in upstream, to ensure lock chamber Stability Analysis of Structures, the emergency repair lock in vertical shaft type lock chamber 1
Partition wall 8 needed between door 5 and main gate 2 is general thicker, not economical enough.Moreover, need to arrange passage between partition wall 8, every
The complex structural designs of wall 8, under the interim high water head effect of length, partition wall 8 easily produces crack, brings unfavorable shadow safely to structure
Ring.
3. the bulkhead gate 9 set, construction costs is of a relatively high more.
The technical term being related in this case is explained as follows：
Bulkhead gate：Dash in short-term when being overhauled for building, is typically opened and closed in hydrostatic.
Before emergency gate is located at deep hole main gate more, when there is accident for building or equipment, it can be closed in dynamic water
Close and opened in hydrostatic；When also serving as bulkhead gate, also referred to as emergency repair gate.
Utility model content
In view of the above-mentioned problems, the utility model aims to provide a kind of flexible and convenient operation, operation is safer, construction costs compared with
Low flood discharging tunnel.
The utility model solve problem technical scheme be：A kind of flood discharging tunnel, including pressurized tunnel, it is arranged at pressurized tunnel
The front end lock chamber of upstream end, the vertical shaft type lock chamber for being arranged at pressurized tunnel downstream end, the vertical shaft type lock chamber only set one of work
Make gate, the front end lock chamber is provided with one of emergency repair gate, and lock chamber top in front end is identical with vertical shaft type lock chamber elevation.
Preferably, the main gate is deep hole arch gate.
Access bridge is provided with the top of the front end lock chamber.
The utility model removes the emergency repair gate of traditional vertical shaft type lock chamber and partition wall, by the elevation of front end lock chamber
Rise, and then replace original bulkhead gate and emergency repair gate twice gate with one of emergency repair gate of front end lock chamber
Achievable function.On the premise of use is not influenceed, a fan bulkhead gate quantities can be saved.
Emergency repair gate after improvement can not consider that the range of decrease of head is directly overhauled, more flexible convenience in operation, fortune
Row is also safer.
It is favourable to lock chamber Stability Analysis of Structures meanwhile vertical shaft type lock chamber is only separately provided a fan deep hole arch gate.Especially
Suitable for middle high water head and there is longer pressurized tunnel, pressurized tunnel front end need to be separately provided the flood discharging tunnel lock chamber knot of bulkhead gate
Structure.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of flood discharging tunnel in the prior art.
Fig. 2 is the schematic diagram of the utility model flood discharging tunnel.
Fig. 3 is Fig. 2 profilograph.
In figure：1st, vertical shaft type lock chamber；2nd, main gate；3rd, pressurized tunnel；4th, front end lock chamber；5th, emergency repair gate；6、
Access bridge；7th, massif；8th, partition wall；9th, bulkhead gate.
Embodiment
As shown in figures 2-3, a kind of flood discharging tunnel, it is included in the pressurized tunnel 3 excavated in massif 7, is arranged at pressurized tunnel 3
The front end lock chamber 4 of upstream end, the vertical shaft type lock chamber 1 for being arranged at the downstream end of pressurized tunnel 3.The vertical shaft type lock chamber 1 only sets one
Road main gate 2, the front end lock chamber 4 are provided with one of emergency repair gate 5, front end lock chamber 4 and the cope level of vertical shaft type lock chamber 1
It is identical.
The main gate 2 is deep hole arch gate.
The top of front end lock chamber 4 is provided with access bridge 6.
The present embodiment removes the emergency repair gate 5 of traditional vertical shaft type lock chamber 1 and partition wall 8, by the height of front end lock chamber 4
Cheng Shenggao, and then replace 5 liang original of bulkhead gate 9 and emergency repair gate with one of emergency repair gate 5 of front end lock chamber 4
The achievable function of road gate.
Claims (3)
1. a kind of flood discharging tunnel, including pressurized tunnel, it is arranged at the front end lock chamber of pressurized tunnel upstream end, is arranged under pressurized tunnel
Swim the vertical shaft type lock chamber of end, it is characterised in that：The vertical shaft type lock chamber only sets one of main gate, and the front end lock chamber is provided with
One of emergency repair gate, front end lock chamber are identical with vertical shaft type lock chamber cope level.
2. flood discharging tunnel according to claim 1, it is characterised in that：The main gate is deep hole arch gate.
3. flood discharging tunnel according to claim 1, it is characterised in that：Access bridge is provided with the top of the front end lock chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072639.6U CN207092033U (en) | 2017-08-25 | 2017-08-25 | A kind of flood discharging tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072639.6U CN207092033U (en) | 2017-08-25 | 2017-08-25 | A kind of flood discharging tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207092033U true CN207092033U (en) | 2018-03-13 |
Family
ID=61540105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721072639.6U Active CN207092033U (en) | 2017-08-25 | 2017-08-25 | A kind of flood discharging tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207092033U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288106A (en) * | 2017-08-25 | 2017-10-24 | 中国电建集团中南勘测设计研究院有限公司 | A kind of flood discharging tunnel |
| CN109667248A (en) * | 2018-12-21 | 2019-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | A multistage manger plate emptying system for high dam engineering |
| CN111236167A (en) * | 2020-03-31 | 2020-06-05 | 金华市恒通工程检测有限公司 | Water conservancy project flood discharge prevention of seepage dykes and dams |
-
2017
- 2017-08-25 CN CN201721072639.6U patent/CN207092033U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288106A (en) * | 2017-08-25 | 2017-10-24 | 中国电建集团中南勘测设计研究院有限公司 | A kind of flood discharging tunnel |
| CN109667248A (en) * | 2018-12-21 | 2019-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | A multistage manger plate emptying system for high dam engineering |
| CN111236167A (en) * | 2020-03-31 | 2020-06-05 | 金华市恒通工程检测有限公司 | Water conservancy project flood discharge prevention of seepage dykes and dams |
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