CN206928255U - The maintenance arrangement of the permanent plug of induced joint diversion tunnel - Google Patents
The maintenance arrangement of the permanent plug of induced joint diversion tunnel Download PDFInfo
- Publication number
- CN206928255U CN206928255U CN201720541590.8U CN201720541590U CN206928255U CN 206928255 U CN206928255 U CN 206928255U CN 201720541590 U CN201720541590 U CN 201720541590U CN 206928255 U CN206928255 U CN 206928255U
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- CN
- China
- Prior art keywords
- maintenance
- diversion tunnel
- draining
- permanent plug
- tunnel
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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.)
- Withdrawn - After Issue
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Abstract
A kind of maintenance arrangement of the permanent plug of induced joint diversion tunnel is the utility model is related to, belongs in Hydraulic and Hydro-Power Engineering and leads river closure construction technical field.It is of the present utility model maintenance arrangement include can draining plugging structure and maintenance plugging structure, can draining plugging structure be arranged in diversion tunnel exit, including gallery, vertical shaft platform, draining shaft and sump, maintenance plugging structure is arranged in working tunnel, including access path and maintenance backwater gate.During maintenance, the draining shaft for first passing through setting drains current in diversion tunnel, then opens bulkhead gate by access path and enter diversion tunnel, finally realizes monitoring and maintenance to permanent plug.The utility model provides a kind of arrangement for the safe operation for not only having facilitated the permanent plug monitoring of diversion tunnel to overhaul but also do not influence cushion pool collector drain, simple and reliable for structure, safe, reduces investment outlay and easy for construction.
Description
Technical field
A kind of maintenance arrangement of the permanent plug of induced joint diversion tunnel is the utility model is related to, belongs to Hydraulic and Hydro-Power Engineering
In lead river closure construction technical field.
Background technology
In the induced joint process of construction in deep mountain valleys area, the annual cutout in cofferdam, led by the construction of diversion tunnel aerial drainage
The application of stream mode is most, and these large-scale diversion tunnels are both needed to use the permanent plug of concrete before reservoir filling after mission is completed
Structure blocks to it.After the completion of closure, the permanent plug of diversion tunnel forms entirety with seepage control of dam curtain and plays dam body seepage
Effect, its rank is consistent with permanent water retaining structure rank, and safety and stability seems particularly important.Therefore, diversion tunnel is forever
Long plug needs to carry out operational monitoring and maintenance.Meanwhile generally require to set cushion pool to meet flood-discharge energy-dissipating behind induced joint dam
Needs, and plunge pool floor is provided with collector drain, and its safe for operation and draining efficiency can be by downstream flood level and water conservancy diversion
Hole plug or the influence of lining cutting leak.
At present, engineering staff is by the use of diversion tunnel working tunnel passage as permanent access path, and goes out in downstream diversion tunnel
Mouth sets bank tower lock chamber, when needing maintenance, is overhauled after being drawn water by lock under water conservancy diversion hole outlet gate, but the arrangement is deposited
In following deficiency：
(1) water conservancy diversion hole outlet sets the tower lock chamber of bank, and project scale is big, investment is very high, maintenance cost is high；
(2) alluvial (this situation occur in existing engineering) of the water conservancy diversion hole outlet lock chamber through silt year in year out, lower lock difficulty is big,
And gate is placed under water for a long time, in fact it could happen that damage drainage；
(3) diversion tunnel working tunnel passage often connects with cushion pool collector drain passage, for avoid Diversion tunnel plug or
Diversion tunnel lining cutting infiltration influences on it, it is ensured that cushion pool collector drain normal operation and safety are extremely numerous, it is necessary to periodically draw water
It is trivial.
Utility model content
The purpose of this utility model is for weak point present in above-mentioned existing background technology, there is provided a kind of induced joint
The maintenance arrangement of the permanent plug of diversion tunnel, the arrangement is simple, safe for operation, easy for construction, reduce investment outlay and overhaul
It is convenient.
Technical scheme is used by the utility model solves its technical problem：The maintenance of the permanent plug of induced joint diversion tunnel
Arrangement, including diversion tunnel, permanent plug are provided with diversion tunnel, permanent plug connects with seepage proof curtain, and diversion tunnel is forever
The downstream side connection working tunnel of long plug, diversion tunnel exit be disposed with can draining plugging structure, can draining plugging structure
Including concrete occluding body A, concrete occluding body A end facing water is provided with the gallery for draining and grouting, the top plate of gallery
The extraneous draining shaft of connection is disposed with, the outer end of draining shaft is disposed with vertical shaft platform；Maintenance envelope is disposed with working tunnel
Bridging structure, maintenance plugging structure include concrete occluding body B, and concrete occluding body B connects with seepage proof curtain, concrete occluding body
B has the access path through its body, and maintenance backwater gate is provided with access path.During implementation, concrete occluding body A's
Length, the elevation of vertical shaft platform can be calculated according to that can keep out the 100 years one chance flood levels in downstream.
It is further：Vertical shaft platform is formed by massif rock excavation.
It is further：The backplane of gallery has a sump, and sump and draining shaft align setting in vertical direction.
It is further：Sump section is circle, sump diameter and draining shaft diameter with draining shaft section
It is identical.
It is further：The floor elevation of sump and concrete occluding body A floor elevation spacing are 2m~3m.
It is further：Maintenance backwater gate is installed on away from access path end facing water 5m~10m.
When carrying out permanent plug maintenance using the permanent plug maintenance arrangement of above-mentioned induced joint diversion tunnel, maintenance typically exists
Dry season is carried out, and maintenance step is：
First, pumping for water pump pipe is transferred to gallery along draining shaft, current in diversion tunnel is drained；
2nd, the access path entered from working tunnel in maintenance plugging structure, open maintenance backwater gate and enter diversion tunnel,
Operational monitoring and maintenance are carried out to the permanent plug in diversion tunnel.
The beneficial effects of the utility model are：1. the flood season of non-turn(a)round, in diversion tunnel exit, by can draining block
The structure barrier level of tail water pours into, at the same can ensure meet with 100 years one meet flood when, can draining plugging structure can stablize transport
OK, will not slide, structure is safe and reliable；Vertical shaft platform height meets the requirement that flood level was met higher than 100 years one, it is ensured that meets with
When meeting flood within 100 years one, it will not pour in down a chimney into diversion tunnel and influence other annexes；2. non-turn(a)round or flood season, maintenance
Maintenance backwater gate in plugging structure is closed, and the Diversion tunnel plug or diversion tunnel lining cutting infiltration that can so ensure upstream will not
Its operation is influenceed into cushion pool collector drain.3. arranged and designed by cleverly structure, realize permanent to induced joint
Plug regularly monitor and overhaul, and arrangement is simple and reliable, safe, reduces investment outlay and easy for construction.
Brief description of the drawings
Fig. 1 is that diversion tunnel exit of the present utility model can draining plugging structure arrangement vertical section；
Fig. 2 is can draining plugging structure plug sectional schematic diagram；
Fig. 3 is draining shaft sectional schematic diagram；
Fig. 4 is maintenance plugging structure plane of arrangement schematic diagram；
Fig. 5 is maintenance plugging structure plug sectional drawing；
Fig. 6 is maintenance plugging structure plane detail drawing.
In figure mark for：1- can draining plugging structure, 2- maintenance plugging structure, 3- diversion tunnels exit, 4- working tunnels,
5- seepage proof curtains, 11- gallerys, 12- vertical shafts platform, 13- draining shafts, 14- sumps, the inspection of 15- concrete occluding body A, 21-
Repair passage, 22- maintenance backwater gate, the permanent plug of 23- concrete occluding bodies B, 6-, 7- horizontal construction joints, 8- original lining cutting.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
As shown in Fig. 1~Fig. 6, the maintenance arrangement of the permanent plug of induced joint diversion tunnel, including diversion tunnel, in diversion tunnel
Permanent plug 6 is provided with, permanent plug 6 connects with seepage proof curtain 5, and diversion tunnel connects construction in the downstream side of permanent plug 6
Branch hole 4, diversion tunnel exit 3 be disposed with can draining plugging structure 1, can draining plugging structure 1 include concrete occluding body A15,
Concrete occluding body A15 end facing water is provided with the gallery 11 for draining and grouting, and the top plate of gallery 11 is disposed with outside connection
The draining shaft 13 on boundary, the outer end of draining shaft 13 are disposed with vertical shaft platform 12；Maintenance plugging structure is disposed with working tunnel 4
2, maintenance plugging structure 2 connects including concrete occluding body B23, concrete occluding body B23 with seepage proof curtain 5, concrete closure
Body B23 has the access path 21 through its body, and maintenance backwater gate 22 is provided with access path 21.
Preferably, vertical shaft platform 12 is formed by massif rock excavation；The backplane of gallery 11 has sump 14, sump
14 align setting with draining shaft 13 in vertical direction.The section of sump 14 and the section of draining shaft 13 are circle, sump
14 diameters are identical with the diameter of draining shaft 13.The floor elevation of sump 14 and concrete occluding body A15 floor elevation spacing
For 2m~3m.Maintenance backwater gate 22 is installed on away from the end facing water 5m~10m of access path 21.
By taking the world-class induced joint engineering in southwest as an example, concrete occluding body A15 design length is according to can keep out
Downstream 100 years one is met flood level and is calculated, according to related Regulations calculate length is 15m；Can draining plugging structure 1
The gallery 11 of draining and grouting is inside set, size is 3m × 4m (wide × high)；Can the vertical shaft platform that sets of the top of draining plugging structure 1
12 are formed by massif rock excavation, and the elevation of vertical shaft platform 12 is 410m, meet the requirement that flood level 407m was met higher than 100 years one,
Insertion gallery 11 is down excavated from vertical shaft platform 12 to from draining shaft 13 can be formed with a distance from the bottom plate 2m of draining plugging structure 1
With sump 14；Draining shaft 13 and sump 14 are circle, and diameter is 2m.Away from access path end facing water in access path 21
Installation and repairing backwater gate 22 at 5m, size are 3m × 4m (wide × high).
When carrying out permanent plug maintenance using the permanent plug maintenance arrangement of above-mentioned induced joint diversion tunnel, maintenance typically exists
Dry season is carried out, and maintenance step is：
First, because diversion tunnel outlet elevation is relatively low, in Diversion tunnel plug or diversion tunnel lining cutting infiltration can flow into downstream water conservancy diversion
At hole outlet, now pumping for water pump pipe is transferred to gallery 11 along draining shaft 13, current in diversion tunnel drained to facilitate inspection
Repair；
2nd, the access path 21 entered from working tunnel 4 in maintenance plugging structure 2, open maintenance backwater gate 22 and enter
Diversion tunnel, operational monitoring and maintenance are carried out to the permanent plug 6 in diversion tunnel.
Claims (6)
1. the maintenance arrangement of the permanent plug of induced joint diversion tunnel, including diversion tunnel, permanent plug is provided with diversion tunnel
(6), permanent plug (6) connects with seepage proof curtain (5), and diversion tunnel connects working tunnel in the downstream side of permanent plug (6)
(4), it is characterised in that：Diversion tunnel exit (3) be disposed with can draining plugging structure (1), can draining plugging structure (1) include it is mixed
Native occluding body A (15) is coagulated, concrete occluding body A (15) end facing water is provided with the gallery (11) for draining and grouting, gallery
(11) top plate is disposed with the extraneous draining shaft (13) of connection, and the outer end of draining shaft (13) is disposed with vertical shaft platform (12)；
Maintenance plugging structure (2) is disposed with working tunnel (4), maintenance plugging structure (2) includes concrete occluding body B (23), coagulation
Native occluding body B (23) connects with seepage proof curtain (5), and concrete occluding body B (23) has the access path (21) through its body,
Maintenance backwater gate (22) is provided with access path (21).
2. the maintenance arrangement of the permanent plug of induced joint diversion tunnel as claimed in claim 1, it is characterised in that：Vertical shaft platform
(12) formed by massif rock excavation.
3. the maintenance arrangement of the permanent plug of induced joint diversion tunnel as claimed in claim 1, it is characterised in that：Gallery (11)
Backplane have a sump (14), sump (14) and draining shaft (13) align setting in vertical direction.
4. the maintenance arrangement of the permanent plug of induced joint diversion tunnel as claimed in claim 3, it is characterised in that：Sump
(14) section and draining shaft (13) section are circle, and sump (14) diameter is identical with draining shaft (13) diameter.
5. the maintenance arrangement of the permanent plug of induced joint diversion tunnel as claimed in claim 3, it is characterised in that：Sump
(14) the floor elevation spacing of floor elevation and concrete occluding body A (15) is 2m~3m.
6. the maintenance arrangement of the permanent plug of induced joint diversion tunnel as claimed in claim 1, it is characterised in that：Overhaul dash
Gate (22) is installed on away from access path (21) end facing water 5m~10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720541590.8U CN206928255U (en) | 2017-05-16 | 2017-05-16 | The maintenance arrangement of the permanent plug of induced joint diversion tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720541590.8U CN206928255U (en) | 2017-05-16 | 2017-05-16 | The maintenance arrangement of the permanent plug of induced joint diversion tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206928255U true CN206928255U (en) | 2018-01-26 |
Family
ID=61351595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720541590.8U Withdrawn - After Issue CN206928255U (en) | 2017-05-16 | 2017-05-16 | The maintenance arrangement of the permanent plug of induced joint diversion tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206928255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513112A (en) * | 2019-09-04 | 2019-11-29 | 中国电建集团中南勘测设计研究院有限公司 | A kind of flowing hole forms device and shaft construction method |
| CN111188321A (en) * | 2020-01-13 | 2020-05-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Water inlet quick gate vent structure |
-
2017
- 2017-05-16 CN CN201720541590.8U patent/CN206928255U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513112A (en) * | 2019-09-04 | 2019-11-29 | 中国电建集团中南勘测设计研究院有限公司 | A kind of flowing hole forms device and shaft construction method |
| CN111188321A (en) * | 2020-01-13 | 2020-05-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Water inlet quick gate vent structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230725 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20230725 |