CN203429609U - Pressure hydraulic tunnel high flow underground water discharge control structure - Google Patents
Pressure hydraulic tunnel high flow underground water discharge control structure Download PDFInfo
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- CN203429609U CN203429609U CN201320424892.9U CN201320424892U CN203429609U CN 203429609 U CN203429609 U CN 203429609U CN 201320424892 U CN201320424892 U CN 201320424892U CN 203429609 U CN203429609 U CN 203429609U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000009172 bursting Effects 0.000 abstract 7
- 230000005611 electricity Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a pressure hydraulic tunnel high flow underground water discharge control structure. The pressure hydraulic tunnel high flow underground water discharge control structure is simple in structure, convenient to construct, and capable of realizing separation of water in a tunnel from water outside the tunnel and controllable discharge of the outside water under various working conditions in a project operation phase so as to ensure the safety of a tunnel lining structure and maximization of electricity generation benefits of a power station. According to the technical scheme, a drainage tunnel is arranged nearby a pressure tunnel, and water bursting points are distributed on the periphery of the pressure tunnel. The pressure hydraulic tunnel high flow underground water discharge control structure is characterized in that consolidation grouting is conducted nearby the water bursting points and within the range of a side top arch of the pressure tunnel, a centralized water bursting point is arranged below a bottom plate of the pressure tunnel, the centralized water bursting point is formed by centralizing all the water bursting points within the range of the bottom plate of the pressure tunnel, and a transverse drainage passageway communicated with the pressure tunnel and the drainage tunnel is excavated nearby the centralized water bursting point; a caisson is arranged on the top of the centralized water bursting point and connected with the drainage tunnel through a drainage steel pipe, and a gate valve, a pressure gauge and a flow gauge are mounted at an outlet of the drainage steel pipe.
Description
Technical field
The utility model relates to the underground water control row of the large flow of a kind of pressure water work tunnel structure.Be applicable to Hydraulic and Hydro-Power Engineering.
Background technology
In recent years, China has built large quantities of buried pressure water work tunnel Hydropower Project in southwest, and hydraulic tunnel its construction level has obtained large increase, and part technology is in world lead level.(water yield surpasses 1m in the process of construction of buried hydraulic tunnel, usually to run into the prominent water burst problem of large flow
3/ S), if shutoff completely, very expensive, duration are extremely grown and tunnel lining structure are brought compared with high external water pressure and caused engineering safety problem, take suitable control row measure can in ambient influnence controlled range, reduce external water pressure, meet engineering operation needs.
Take which kind of measure, realize under various operating modes the inside and outside water of pressure water work tunnel separated, the controlled discharge of outer water also meets the needs of tunnel lining structural safety, is the problem of solution of needing badly in current many deep-lying tunnel engineering constructions.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, the underground water control row of a kind of large flow of pressure water work tunnel simple in structure, easy construction is provided structure, realize the inside and outside water separation of tunnel under various operating modes of engineering operation stage, the controlled discharge of outer water, guarantees that tunnel lining structural safety and power station power benefit maximize.
The technical scheme that the utility model adopts is: the underground water control row of the large flow of a kind of pressure water work tunnel structure, near pressurized tunnel, be provided with drainage tunnel, the circumferential distribution of pressurized tunnel has issue, it is characterized in that: near issue and pressurized tunnel limit crown within the scope of consolidation grouting, pressurized tunnel floor below has concentrated issue, this concentrated issue concentrates on pressurized tunnel base plate scope by each issue and forms, and concentrates near the excavation one of issue to be communicated with the transverse drainage passage of pressurized tunnel and drainage tunnel; Described concentrated issue top arranges caisson, and caisson is through the draining steel pipe connecting water hole of running in, and gate valve, pressure meter and flow meter are installed in draining steel pipe exit.
Described caisson is positioned at the following certain depth of pressurized tunnel base plate.
The construction of described caisson top has steel concrete ballast.
The cutting of described draining steel pipe is embedded in transverse drainage passage.
Described caisson is integrated steel-structure.
The beneficial effects of the utility model are: the utility model is effectively realized the controlled discharge of the large flow groundwater treatment of pressure water work tunnel, realize the inside and outside water of power station operation phase tunnel separated, and guarantee that tunnel lining structural safety and power station power benefit maximize.
Accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
The specific embodiment
As shown in Fig. 1 ~ Fig. 3, the present embodiment is the underground water control row of the large flow of a kind of pressure water work tunnel structure, is provided with drainage tunnel 2 near pressurized tunnel 1, and this pressurized tunnel periphery exists issue.In the present embodiment, near pressurized tunnel 1 issue, excavate a transverse drainage passage 4, near drainage tunnel 2, for follow-up draining provides necessary passage.By near issue and the consolidation grouting measure of tunnel limit crown scope, issue is concentrated on to tunnel base plate scope and form and concentrate issue 8.At concentrated issue 8 tip positions, carry out part and dig, deep-cut, coordinate high-power pumping equipment to arrange caisson 3(integrated steel-structure), and with peripheral rock closed reinforcement.Caisson is positioned at the following certain depth of tunnel base plate, and the concrete degree of depth, according to power station run duration internal water pressure and maximum external water pressure, adopts structure checking calculation to determine.After caisson 3 is in place, be connected with the pre-buried draining steel pipe 5 to drainage tunnel 2 before, realize the orderly discharge of underground water.Draining steel pipe 5 is buried underground by transverse drainage passage 4 cuttings of having excavated, and gate valve 7 and corresponding pressure meter, flow meter 6 are arranged in exit position.Draining steel pipe 5 quantity design according to maximum flooding quantity, meet maximum excretion requirement.According to on-site actual situations, caisson 3 is added a cover sealing in good time, and at top construction reinforced bar concrete ballast.Realize underground water after the controlled discharge of pressurized tunnel 1 bottom, carry out the reinforced concrete lining layer of hydraulic tunnel routine and except caisson 3 scopes other regions have a heavy consolidation grouting of lid, guarantee the prolonged permeation stability and safety in water burst region.
Power station run duration, according to Project Areas peripheral environment impact evaluation achievement and needs, by draining steel pipe 5 control of export gate valves 7, realizes the controlled discharge of issue, and controls external water pressure rising within the scope of liner structure safe bearing load by pressure meter.
Certainly, above-mentioned explanation is not limitation of the utility model, and the utility model is also not limited to above-mentioned giving an example; those skilled in the art; in scope of the present utility model, the variation of making, change and add or replace, all should belong to protection domain of the present utility model.
Claims (5)
1. structure is arranged in the underground water control of the large flow of pressure water work tunnel, near pressurized tunnel (1), be provided with drainage tunnel (2), the circumferential distribution of pressurized tunnel has issue, it is characterized in that: consolidation grouting within the scope of near the crown of issue and pressurized tunnel (1) limit, pressurized tunnel floor below has concentrated issue (8), this concentrated issue concentrates on pressurized tunnel base plate scope by each issue and forms, and concentrates near the excavation one of issue (8) to be communicated with the transverse drainage passage (4) of pressurized tunnel (1) and drainage tunnel (2); Described concentrated issue (8) top arranges caisson (3), and caisson (3) connects drainage tunnel (2) through draining steel pipe (5), and gate valve (7), pressure meter and flow meter (6) are installed in draining steel pipe (5) exit.
2. the underground water control row of the large flow of pressure water work tunnel according to claim 1 structure, is characterized in that: described caisson (3) is positioned at the following certain depth of pressurized tunnel (1) base plate.
3. the underground water control row of the large flow of pressure water work tunnel according to claim 1 and 2 structure, is characterized in that: the construction of described caisson (3) top has steel concrete ballast.
4. the underground water control row of the large flow of pressure water work tunnel according to claim 1 structure, is characterized in that: described draining steel pipe (5) cutting is embedded in transverse drainage passage (4).
5. the underground water control row of the large flow of pressure water work tunnel according to claim 1 structure, is characterized in that: described caisson (3) is integrated steel-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424892.9U CN203429609U (en) | 2013-07-17 | 2013-07-17 | Pressure hydraulic tunnel high flow underground water discharge control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320424892.9U CN203429609U (en) | 2013-07-17 | 2013-07-17 | Pressure hydraulic tunnel high flow underground water discharge control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203429609U true CN203429609U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320424892.9U Expired - Fee Related CN203429609U (en) | 2013-07-17 | 2013-07-17 | Pressure hydraulic tunnel high flow underground water discharge control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203429609U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227961A (en) * | 2017-06-29 | 2017-10-03 | 中铁十二局集团有限公司 | Heavy caliber dewatering well construction method in metro built by mining method hole |
| CN109538293A (en) * | 2018-12-28 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of the replacement Treatment structure and method of underground chamber water gushing channelway |
| CN110344880A (en) * | 2019-08-20 | 2019-10-18 | 中国电建集团成都勘测设计研究院有限公司 | A kind of rich water tunnel construction advance water discharge structure and construction method |
-
2013
- 2013-07-17 CN CN201320424892.9U patent/CN203429609U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227961A (en) * | 2017-06-29 | 2017-10-03 | 中铁十二局集团有限公司 | Heavy caliber dewatering well construction method in metro built by mining method hole |
| CN109538293A (en) * | 2018-12-28 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of the replacement Treatment structure and method of underground chamber water gushing channelway |
| CN109538293B (en) * | 2018-12-28 | 2024-02-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Replacement treatment structure and method for water inflow channel of underground cavern |
| CN110344880A (en) * | 2019-08-20 | 2019-10-18 | 中国电建集团成都勘测设计研究院有限公司 | A kind of rich water tunnel construction advance water discharge structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 3102 Patent on August 4, 2023 Number: 31-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |