CN205348131U - Diversion tunnel rebuilds to air vent after radial gate control - Google Patents
Diversion tunnel rebuilds to air vent after radial gate control Download PDFInfo
- Publication number
- CN205348131U CN205348131U CN201521068821.5U CN201521068821U CN205348131U CN 205348131 U CN205348131 U CN 205348131U CN 201521068821 U CN201521068821 U CN 201521068821U CN 205348131 U CN205348131 U CN 205348131U
- Authority
- CN
- China
- Prior art keywords
- diversion tunnel
- section
- tunnel
- passage
- rebuilt
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a diversion tunnel rebuilds to air vent after radial gate control, it includes the upper reaches of waiting to reform transform diversion tunnel (2) are provided with intake tower (1) intake tower (1) in be provided with air vent (1.1) in advance intake tower (1) and wait to reform transform and be provided with inlet transition (3) between diversion tunnel (2) ecology drain hole section (2.2) divide into two sections M, N in proper order, the M section does ecology drain hole section (2.2) make concrete reconstruction body A (4) by concrete placement, concrete reconstruction body A (4) bottom reserve and form a sluicing passageway (2.2.1), it overcome completely flow the earial drainage at present the floodgate can take away the air, result in forming behind the gate negative pressuren zone, the shortcoming of harm gate and other earial drainage facilities has and has eliminated the advantage of negative pressure to the adverse effect of radial gate and earial drainage facility safety.
Description
Technical field
This utility model relates to the technical field of Construction for Hydroelectric Project water conservancy diversion, is more specifically the passage after the reconstruction of a kind of diversion tunnel controls for gates of segmental shape.
Background technology
1, current diversion tunnel import plain batton door passage facilities
Owing to diversion tunnel can take away air at flowing full earial drainage lock at present, negative pressuren zone is formed after causing gate, infringement gate and other earial drainage facility, in order to solve negative pressure problem, be typically employed in hole, intake tower plain batton door downstream at present and push up the operating platform formation passage of the straight-through higher part position of pre-buried pipeline.
Only single use during lock under diversion tunnel gate due to this passage, therefore, after diversion tunnel closure, before water level exceedes passage, adopts steel bulkhead to shut passage, in order to avoid storehouse water vents from passage.
2, cavern's Upstream section arranges arc-shaped door passage facilities
Such as permanent flood discharging tunnel, emptying tunnel etc., if gates of segmental shape is arranged in cavern's Upstream section, its ventilation concora crush is generally adopted ventilation hole (vertical shaft) pattern, owing to these the cavern layout elevations are all high than diversion tunnel, and its ventilation hole is also permanent building, it is necessary to use for many years, therefore, its ventilation hole import is arranged in more than reservoir operation scheme, will not affect its ventilation function because reservoir level rises.
But to diversion tunnel reconstruction for after arc gate control, all there is certain problems and disadvantages in the above two passage plan of establishment:
(1) plain batton door passage in upstream downstream must extend to below arc door appropriate location by spreading, could meet concora crush of ventilating to arc passage downstream cavern.
(2) adopt ventilation hole (vertical shaft) ventilate concora crush mode time, diversion tunnel reconstruction construction period, there is construction interference problem, increase rebuilding construction straight line duration and civilwork engineering quantity.
(3) diversion tunnel import slope rock mass mostly is the strong unloaded band after excavation, for stability of slope, early stage is provided with deep layer anchor cable or anchor pile mostly, if being aerated hole (vertical shaft) excavation construction again during the later stage reconstructs, stable side slope impact is bigger.
(4) regardless of ventilation hole (vertical shaft) input elevation, the permanent plug construction of diversion tunnel is affected in order to avoid strong unloaded band massif permeates current entrance ventilation hole (vertical shaft), it is necessary to set plug closure at suitable position.
Summary of the invention
The purpose of this utility model is in that to overcome in prior art diversion tunnel and can take away air at flowing full earial drainage lock at present, negative pressuren zone is formed after causing gate, the weak point of infringement gate and other earial drainage facility, and the passage after the reconstruction of a kind of diversion tunnel controls for gates of segmental shape is proposed, its cost saving, it also avoid construction interference during reconstruction construction.
The reconstruction of this utility model diversion tunnel is the passage after gates of segmental shape control, it includes the upstream of described diversion tunnel to be rebuilt is provided with intake tower, it is previously provided with passage in described intake tower, being provided with inlet transition between described intake tower and diversion tunnel to be rebuilt, described diversion tunnel to be rebuilt is divided into diversion tunnel A section, ecological drainage tunnel section, diversion tunnel B section；Being divided into M, N two sections in described ecological drainage tunnel section, the ecological drainage tunnel section that M section is described is made a concrete reconstruction body A, one drainage gallery of reserved formation bottom described concrete reconstruction body A by concreting；N section is positioned at the rear of described drainage gallery outlet；Form concrete reconstruction body B by concreting N section, described concrete reconstruction body B is provided with the gates of segmental shape that can control aperture；Described diversion tunnel B section is positioned at the end of described diversion tunnel to be rebuilt and puts end, is provided with passage pipeline in described concrete reconstruction body A, and described passage pipeline one end is connected with described passage, and the other end causes gates of segmental shape downstream.
In technique scheme: the hole of described diversion tunnel to be rebuilt is tall and big high in the hole of drainage gallery；Described diversion tunnel A section keeps consistent with diversion tunnel B with the described original size of diversion tunnel to be rebuilt.
In technique scheme: the described drainage gallery bottom ecological drainage tunnel section and the smooth-going of the channel bottom between diversion tunnel B section are connected.
This utility model has following technological merit: 1, solves in diversion tunnel transformation hole, backarc door Xia Zha downstream and negative pressure problem occurs, eliminates the negative pressure adverse effect to arc door and earial drainage installation security.
2, avoid excavation ventilation hole in the deep overlying strata body of diversion tunnel import, reduce construction interference and construction work amount.
3, diversion tunnel import side slope deep support measure (anchor cable, anchor pile etc.) is complicated, adopt technical solutions of the utility model, it is to avoid the excavation ventilation hole (vertical shaft) destruction to existing supporting measure.It addition, regardless of ventilation hole (vertical shaft) input elevation, affect the permanent plug construction of diversion tunnel in order to avoid massif permeates current entrance ventilation hole (vertical shaft), it is necessary to set plug closure at suitable position.
4, this utility model is compared with traditional excavation ventilation hole scheme, can save the duration of 2-3 month, and without interference with the duration, construction is simple, and has only to adopt steel bulkhead closure just passable.
Accompanying drawing explanation
Fig. 1 is diversion tunnel reconstruction drainage tunnel profilograph A-A.
Fig. 2 diversion tunnel reconstruction drainage tunnel plane graph B-B.
Fig. 3 diversion tunnel reconstruction drainage tunnel typical case drawing in side sectional elevation C-C.
In figure: intake tower 1, passage 1.1, diversion tunnel to be rebuilt 2, diversion tunnel A section 2.1, ecological drainage tunnel 2.2, drainage gallery 2.2.1, diversion tunnel B section 2.3, inlet transition 3, concrete reconstruction body A4, passage pipeline 4.1, concrete reconstruction body B5, gates of segmental shape 6.
Detailed description of the invention
Below in conjunction with being embodied as case, this utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become clearer from easy to understand.
With reference to shown in Fig. 1-3: diversion tunnel reconstruction is the passage after gates of segmental shape control, it includes the upstream of described diversion tunnel 2 to be rebuilt is provided with intake tower 1, it is previously provided with passage 1.1 in described intake tower 1, it is provided with inlet transition 3 between described intake tower 1 and diversion tunnel to be rebuilt 2, described diversion tunnel to be rebuilt 2 is divided into diversion tunnel A section 2.1, ecological drainage tunnel section 2.2, diversion tunnel B section 2.3
Especially in the diversion tunnel B section 2.3 of long about 1800 meters, passage 1.1 in the intake tower 1 of upstream is ventilated and is positioned at the position of described gates of segmental shape 6 and still the drainage gallery 2.2.1 of ecological drainage tunnel section 2.2 is unable to reach requirement to gas, the upstream section of diversion tunnel B section 2.3 still easily forms negative pressure state, causes gates of segmental shape and the damage of neighbouring hole body.
Being divided into M, N two sections in described ecological drainage tunnel section 2.2, it is drainage gallery 2.2.1 that M section top is provided with concrete reconstruction body A4, M pars infrasegmentalis；Concrete reconstruction body B5 it is provided with in N section, described concrete reconstruction body B5 is provided with gates of segmental shape 6, it is provided with passage pipeline 4.1 in described concrete reconstruction body A4, described passage pipeline 4.1 one end is connected with described passage 1.1, the other end causes near gates of segmental shape 6 downstream, passage 1.1 should airtight weld with passage pipeline 4.1 crossover sites, passage pipeline 4.1 should be imbedded in cast-in-place concrete, vibration compacting is answered during this position concreting, cause the breather near gates of segmental shape and must assure that without closure, and unobstructed.
The tall and big hole in ecological drainage tunnel section bottom water drain passage 2.2.1, hole of described diversion tunnel to be rebuilt 2 is high；Described diversion tunnel A section 2.1 keeps consistent with diversion tunnel B section 2.3 with the described original size of diversion tunnel to be rebuilt 2.
Passage smooth-going between described ecological drainage tunnel section bottom water drain passage 2.2.1 and diversion tunnel B section 2.3 is connected.
This utility model also disclosed the construction method that the passage after diversion tunnel reconstruction controls is concrete for gates of segmental shape:
The reconstruction of this utility model diversion tunnel is the method to set up of passage after gates of segmental shape control, and it includes being previously provided with intake tower 1 at the inducer of diversion tunnel, comprises the steps:
1., dam construction middle and late stage before lock water-retention under diversion tunnel, from any one diversion tunnel, the diversion tunnel to be rebuilt 2 selected as ecological flow flood discharge passage is transformed, it is previously provided with the inlet transition 3 connected with intake tower 1 bottom in described diversion tunnel to be rebuilt 2 upstream, described intake tower 1, between diversion tunnel to be rebuilt 2 and inlet transition 3, smoothes out linking successively；
2., by described diversion tunnel to be rebuilt 2 being divided into diversion tunnel A section 2.1, ecological drainage tunnel section 2.2, diversion tunnel B section 2.3, the front end of the afterbody of described diversion tunnel A section 2.1 and ecological drainage tunnel section 2.2 bottom water drain passage 2.2.1 is mutually communicated；
3., described ecological drainage tunnel section 2.2 is divided into M, N two sections；
M section: described ecological drainage tunnel section 2.2 is made a concrete reconstruction body A4, one drainage gallery 2.2.1 of reserved formation bottom described concrete reconstruction body A4 by concreting；
N section: be positioned at the rear of described drainage gallery 2.2.1 outlet；Form concrete reconstruction body B5 with concrete casting, described concrete reconstruction body B5 is provided with the gates of segmental shape 6 that can control aperture；
4., diversion tunnel B section 2.3 be positioned at the end of described diversion tunnel to be rebuilt 2 and put end, current are by, after reconstructing the ecological drainage tunnel section bottom water drain passage 2.2.1 formed, flowing out after entering diversion tunnel B section 2.3.
It is previously provided with passage 1.1 at described intake tower 1, it was equipped with passage pipeline 4.1 before casting concrete reconstructs body A4, and passage pipeline 4.1 upstream extremity is connected with the passage 1.1 pre-set, the downstream of described passage pipeline 4.1 is extended near described gates of segmental shape 6 downstream, and is connected with the external world；The tall and big hole in ecological drainage tunnel section 2.2 bottom water drain passage 2.2.1, hole of described diversion tunnel to be rebuilt 2 is high；Described diversion tunnel A section 2.1 keeps consistent with diversion tunnel B section 2.3 with the described original size of diversion tunnel to be rebuilt 2.
Above-mentioned unspecified part is prior art.
Claims (3)
1. diversion tunnel reconstruction is the passage after gates of segmental shape control, it includes the upstream of described diversion tunnel to be rebuilt (2) is provided with intake tower (1), it is previously provided with passage (1.1) in described intake tower (1), it is provided with inlet transition (3) between described intake tower (1) and diversion tunnel to be rebuilt (2), it is characterised in that: described diversion tunnel to be rebuilt (2) is divided into diversion tunnel A section (2.1), ecological drainage tunnel section (2.2), diversion tunnel B section (2.3)；It is divided into M, N two sections described ecological drainage tunnel section (2.2), the ecological drainage tunnel section (2.2) that M section is described is made concrete reconstruction body A (4) by concreting, and described concrete reconstruction body A (4) bottom is reserved forms a drainage gallery (2.2.1)；N section is positioned at the rear that described drainage gallery (2.2.1) exports；Form concrete reconstruction body B (5) by concreting N section, described concrete reconstruction body B (5) is provided with the gates of segmental shape (6) that can control aperture；Described diversion tunnel B section (2.3) is positioned at the end of described diversion tunnel to be rebuilt (2) and puts end, it is provided with passage pipeline (4.1) in described concrete reconstruction body A (4), described passage pipeline (4.1) one end is connected with described passage (1.1), and the other end causes gates of segmental shape (6) downstream.
2. diversion tunnel according to claim 1 reconstruction is the passage after gates of segmental shape control, it is characterised in that: the hole of described diversion tunnel to be rebuilt (2) is tall and big high in the hole of drainage gallery (2.2.1)；Described diversion tunnel A section (2.1) keeps consistent with diversion tunnel B (2.3) with described diversion tunnel to be rebuilt (2) original size.
3. diversion tunnel according to claim 1 and 2 reconstruction is the passage after gates of segmental shape control, it is characterised in that: the channel bottom smooth-going between drainage gallery (2.2.1) and diversion tunnel B section (2.3) of described ecological drainage tunnel section (2.2) bottom is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068821.5U CN205348131U (en) | 2015-12-18 | 2015-12-18 | Diversion tunnel rebuilds to air vent after radial gate control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068821.5U CN205348131U (en) | 2015-12-18 | 2015-12-18 | Diversion tunnel rebuilds to air vent after radial gate control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205348131U true CN205348131U (en) | 2016-06-29 |
Family
ID=56169407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521068821.5U Withdrawn - After Issue CN205348131U (en) | 2015-12-18 | 2015-12-18 | Diversion tunnel rebuilds to air vent after radial gate control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205348131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421312A (en) * | 2015-12-18 | 2016-03-23 | 长江勘测规划设计研究有限责任公司 | Air vent with diversion tunnel reconstructed into arc-shaped gate control and arrangement method |
| CN110080180A (en) * | 2019-05-30 | 2019-08-02 | 长江勘测规划设计研究有限责任公司 | Reconstruction ecology drainage tunnel structure and its method for arranging in conjunction with permanent plug |
-
2015
- 2015-12-18 CN CN201521068821.5U patent/CN205348131U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421312A (en) * | 2015-12-18 | 2016-03-23 | 长江勘测规划设计研究有限责任公司 | Air vent with diversion tunnel reconstructed into arc-shaped gate control and arrangement method |
| CN110080180A (en) * | 2019-05-30 | 2019-08-02 | 长江勘测规划设计研究有限责任公司 | Reconstruction ecology drainage tunnel structure and its method for arranging in conjunction with permanent plug |
| CN110080180B (en) * | 2019-05-30 | 2023-12-05 | 长江勘测规划设计研究有限责任公司 | Reconstruction ecological water drain hole structure combined with permanent plug and arrangement method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203270527U (en) | Device for preventing gas explosion after gate closing and plugging of diversion tunnel | |
| CN105297690B (en) | A kind of fish pass structure for rock-fill dams and preparation method thereof | |
| CN105386426B (en) | The ecological drainage tunnel and method that diversion tunnel reconstruction controls for gates of segmental shape | |
| CN105421312B (en) | Diversion tunnel reconstruction is the passage and method for arranging after gates of segmental shape control | |
| CN205348131U (en) | Diversion tunnel rebuilds to air vent after radial gate control | |
| CN207537993U (en) | A kind of diversion tunnel concrete plug | |
| CN107700440A (en) | A kind of diversion tunnel concrete plug and its construction method | |
| CN107326879A (en) | Transformation method and device for diversion tunnel of high dam reservoir | |
| CN208604556U (en) | Multifunctional ecological for extra-high rock-fill dams is for water hole arragement construction | |
| CN106759161B (en) | A kind of big cross section diversion tunnel plugging structure and construction method by stages | |
| CN105951849A (en) | Tailings pond potential safety hazard treatment system and treatment method thereof | |
| CN103541330A (en) | Tailings pond flood drainage system for draining in advance efficiently and prolonging clarification distance | |
| CN204174586U (en) | Underground gate chamber air admission system | |
| CN204715318U (en) | Diversion tunnel gate shaft structure in mountain | |
| CN202440787U (en) | Riverway diversion device | |
| CN103161143B (en) | A kind of Diversion Tunnel vertical shaft lock chamber structure be arranged in hidden body | |
| CN208251035U (en) | Flood discharging tunnel joint air-supplement system | |
| CN206928255U (en) | The maintenance arrangement of the permanent plug of induced joint diversion tunnel | |
| CN104005448B (en) | A kind of Wall in Plain Reservoir intake structure | |
| CN107268547B (en) | Karst funnel reservoir and flood discharge building and construction method thereof | |
| CN206189365U (en) | A water conservancy diversion block structure that is used for diversion tunnel shutoff body to pour | |
| CN205604193U (en) | High dam reservoir emptying device | |
| CN105369786B (en) | Diversion tunnel reconstructs the gates of segmental shape lock chamber structure and method for arranging of ecological drainage tunnel | |
| CN203796274U (en) | Permanent inclined shaft blocking structure isolated from tunnel | |
| CN103741703B (en) | A kind of radial pumped well formula siphon drainage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20170627 |