CN207700328U - Underground power house lower layer collector drain structure - Google Patents
Underground power house lower layer collector drain structure Download PDFInfo
- Publication number
- CN207700328U CN207700328U CN201721568040.1U CN201721568040U CN207700328U CN 207700328 U CN207700328 U CN 207700328U CN 201721568040 U CN201721568040 U CN 201721568040U CN 207700328 U CN207700328 U CN 207700328U
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- China
- Prior art keywords
- lower layer
- collector drain
- power house
- underground power
- sump
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model belongs to technical field of hydropower engineering, and in particular to a kind of underground power house lower layer collector drain structure.Underground power house lower layer collector drain structure disclosed by the utility model, including lower layer's collector drain and pressure pipeline, it further include leakage sump connection hole, lower layer's collector drain connects hole with leakage sump and is separately positioned on above and below pressure pipeline, it is connected between lower layer's collector drain and leakage sump connection hole by draining intercommunicating pore, the leakage sump connection hole is connected to leakage sump.By adjusting the relative position of lower layer's collector drain and pressure pipeline, the arrangement of lower layer's collector drain can break away from the limitation of seepage from powerhouse sump water level inside and pressure pipeline elevation, ensure that lower layer's collector drain and the rock ridge at pressure pipeline level-crossing position have enough thickness, the caverns Liang Ge independent construction is not interfere with each other, and cavern's structure is safe and reliable.
Description
Technical field
The utility model belongs to technical field of hydropower engineering, and in particular to a kind of underground power house lower layer collector drain structure.
Background technology
Hydroelectric project underground power house is the powerhouse of hydropower station building in below ground cavern.Rock mass around underground power house is logical
Normal developmental joint fissure, there is likely to be tomography or compresso-crushed zone, rich groundwaters for part.In order to reduce external underground water
Active force, ensures underground power house surrounding rock body and workshop abutment wall stable structure, generally need in the position of workshop upstream certain distance,
If dried layer collector drain is arranged in different elevations, such as upper layer, middle level, lower layer.Usual lower layer collector drain is arranged in pressure pipeline
Lower section, the underground water around pressure pipeline are pooled to lower layer's collector drain, then import the leakage sump inside underground power house.
Due to being limited by seepage from powerhouse sump water level inside and pressure pipeline elevation, between lower layer's collector drain and pressure pipeline
Rock ridge thickness is generally very thin, and when Excavation blasting, adjacent cavern's rock mass was easy breakdown, and pressure pipeline and lower layer's collector drain is caused to be applied
Work interferes with each other, and causes inconvenience, the surrounding rock stability of adjacent tunnel chamber crossing mouth also poor site construction management.
Utility model content
Technical problem to be solved in the utility model is：A kind of easy for construction, underground power house for having a safety feature is provided
Lower layer's collector drain structure.
The utility model solves underground power house lower layer collector drain structure used by its technical problem, including lower layer's draining
Gallery and pressure pipeline, further include leakage sump connection hole, and lower layer's collector drain connects hole difference with leakage sump
It is arranged above and below pressure pipeline, by draining intercommunicating pore between lower layer's collector drain and leakage sump connection hole
Connection, the leakage sump connection hole are connected to leakage sump.
Further, being provided with catch pit in lower layer's collector drain bottom, the bottom of the catch pit passes through row
Water intercommunicating pore connect hole connection with leakage sump.
Further, longitudinal slope of the setting not less than 1% is connected to catch pit in lower layer's collector drain.
Further, the longitudinal slope of the leakage sump connection hole setting not less than 1% is connected to seepage from powerhouse and catchments
Well.
Further, the catch pit inner wall and bottom wall are provided with cement sand bed.
Further, the thickness of the cement sand bed is 0.1~0.15m.
Further, each the number of the corresponding draining intercommunicating pore of the catch pit is at least 3.
Further, each the corresponding draining intercommunicating pore of the catch pit is in quincuncial arrangement.
Further, being 0.5~0.8m in array pitch between the draining intercommunicating pore of quincuncial arrangement.
Further, laying a floor drain at the top of each draining intercommunicating pore.
The utility model has the beneficial effects that：By adjusting the relative position of lower layer's collector drain and pressure pipeline, lower layer
The arrangement of collector drain can break away from the limitation of seepage from powerhouse sump water level inside and pressure pipeline elevation, ensure lower layer's draining
Gallery and the rock ridge at pressure pipeline level-crossing position have enough thickness, the caverns Liang Ge independent construction not to interfere with each other, cavern's knot
Structure is safe and reliable.
Description of the drawings
Fig. 1 is the vertical view of one embodiment of the utility model；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the B-B direction sectional view of Fig. 1；
Fig. 4 be the utility model is related to draining intercommunicating pore one embodiment vertical view；
Fig. 5 be the utility model is related to catch pit one embodiment sectional side elevation；
Parts, position and number in figure：Lower layer's collector drain 1, pressure pipeline 2, leakage sump connection hole 3, draining
Intercommunicating pore 4, leakage sump 5, catch pit 6, cement sand bed 7, underground power house 8.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, underground power house lower layer collector drain structure disclosed by the utility model, including lower layer's draining
Gallery 1, pressure pipeline 2 and leakage sump connect hole 3, and lower layer's collector drain 1 connects hole 3 with leakage sump and is separately positioned on
Above and below pressure pipeline 2, the one end in leakage sump connection hole 3 is connected by draining intercommunicating pore 4 with lower layer's collector drain 1
Logical, the other end is connected to the leakage sump 5 being arranged under underground power house 8.By adjusting lower layer's collector drain and pressure pipe
The relative position in road, the arrangement of lower layer's collector drain can break away from seepage from powerhouse sump water level inside and pressure pipeline elevation
Limitation ensures that lower layer's collector drain and the rock ridge at pressure pipeline level-crossing position have enough thickness, and the caverns Liang Ge independently apply
Work is not interfere with each other, and cavern's structure is safe and reliable.
Specifically, in order to improve the water collection efficiency of lower layer's collector drain 1, the water by lower layer's collector drain 1 is facilitated to lead to leakage
Sump connects hole 3, and 1 bottom of lower layer's collector drain is provided with catch pit 6, the bottom of catch pit 6 by drain intercommunicating pore 4 with
Sump connection hole 3 is leaked to be connected to.Catch pit 6 can be cuboid as shown in Figure 5, can also be infundibulate.
Specifically, in order to further increase the water collection efficiency of lower layer's collector drain 1, it is arranged in lower layer's collector drain 1 and is not less than
1% longitudinal slope is connected to catch pit 6.Lower layer's collector drain 1 of this structure can quickly lead to water in catch pit 6.
Specifically, in order to improve the drainage efficiency that leakage sump connects hole 3, the leakage sump connection setting of hole 3 is not less than
1% longitudinal slope is connected to seepage from powerhouse sump 5.Setting leakage sump connection hole 3 can make to enter leakage sump in this way
The water in connection hole 3 flows rapidly into leakage sump 5.
Specifically, in order to extend the service life of catch pit 6, prevent catch pit 6 from being corroded by ponding, 6 inner wall of catch pit and bottom
Wall is provided with cement sand bed 7, i.e., uses cement sand plaster in catch pit 6.Preferably, the thickness of cement sand bed 7 be 0.1~
0.15m, most preferably 0.1m.
Specifically, in order to further increase leakage sump connect hole 3 drainage efficiency, the 6 corresponding draining of each catch pit
The number of intercommunicating pore 4 is at least 3.
Specifically, in order to further increase leakage sump connect hole 3 drainage efficiency, the 6 corresponding draining of each catch pit
Intercommunicating pore 4 is in quincuncial arrangement.Preferably, it is 0.5~0.8m in array pitch between the draining intercommunicating pore 4 of quincuncial arrangement, it is optimal
It is selected as 0.5m.
Specifically, impurity blocks draining intercommunicating pore 4 in order to prevent, and a floor drain is laid at each 4 top of intercommunicating pore that drains.
Claims (10)
1. underground power house lower layer collector drain structure, including lower layer's collector drain (1) and pressure pipeline (2), it is characterised in that：Also
Hole (3) are connected including leakage sump, lower layer's collector drain (1) connects hole (3) with leakage sump and is separately positioned on pressure
Above and below hydraulic piping (2), lower layer's collector drain (1) is connected between connecting hole (3) with leakage sump by draining
Hole (4) is connected to, and leakage sump connection hole (3) is connected to leakage sump (5).
2. underground power house lower layer collector drain structure according to claim 1, it is characterised in that：Corridor is drained in the lower layer
Road (1) bottom is provided with catch pit (6), and the bottom of the catch pit (6) is connect by draining intercommunicating pore (4) with leakage sump
Hole (3) is connected to.
3. underground power house lower layer collector drain structure according to claim 1, it is characterised in that：Lower layer's collector drain
(1) longitudinal slope of the setting not less than 1% is connected to catch pit (6) in.
4. underground power house lower layer collector drain structure according to claim 1, it is characterised in that：The leakage sump connects
It connects hole (3) longitudinal slope of the setting not less than 1% and is connected to seepage from powerhouse sump (5).
5. underground power house lower layer collector drain structure according to claim 2, it is characterised in that：In the catch pit (6)
Wall and bottom wall are provided with cement sand bed (7).
6. underground power house lower layer collector drain structure according to claim 5, it is characterised in that：The cement sand bed
(7) thickness is 0.1~0.15m.
7. underground power house lower layer collector drain structure according to claim 2, it is characterised in that：Each catch pit
(6) number of corresponding draining intercommunicating pore (4) is at least 3.
8. underground power house lower layer collector drain structure according to claim 7, it is characterised in that：Each catch pit
(6) corresponding draining intercommunicating pore (4) is in quincuncial arrangement.
9. underground power house lower layer collector drain structure according to claim 8, it is characterised in that：In the row of quincuncial arrangement
Array pitch is 0.5~0.8m between water intercommunicating pore (4).
10. underground power house lower layer collector drain structure according to claim 1, it is characterised in that：Each draining connects
A floor drain is laid at the top of through-hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568040.1U CN207700328U (en) | 2017-11-20 | 2017-11-20 | Underground power house lower layer collector drain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568040.1U CN207700328U (en) | 2017-11-20 | 2017-11-20 | Underground power house lower layer collector drain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207700328U true CN207700328U (en) | 2018-08-07 |
Family
ID=63023209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721568040.1U Active CN207700328U (en) | 2017-11-20 | 2017-11-20 | Underground power house lower layer collector drain structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207700328U (en) |
-
2017
- 2017-11-20 CN CN201721568040.1U patent/CN207700328U/en active Active
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