CN110284470A - A kind of hydropower station pressure pipeline collector drain structure - Google Patents
A kind of hydropower station pressure pipeline collector drain structure Download PDFInfo
- Publication number
- CN110284470A CN110284470A CN201910501349.6A CN201910501349A CN110284470A CN 110284470 A CN110284470 A CN 110284470A CN 201910501349 A CN201910501349 A CN 201910501349A CN 110284470 A CN110284470 A CN 110284470A
- Authority
- CN
- China
- Prior art keywords
- collector drain
- pressure pipeline
- collector
- hydropower station
- drain
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 6
- 238000012946 outsourcing Methods 0.000 claims abstract description 6
- 239000003673 groundwater Substances 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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
Abstract
The invention discloses a kind of hydropower station pressure pipeline collector drain structures, the collector drain of closed annular is excavated in pressure pipeline region, collector drain uses circular cross section, bottom is provided with gutter in collector drain, the multiple deep layer drainage holes laid on the outside of collector drain and communicated inside collector drain, deep layer drains hole exits setting draining floral tube, drain floral tube outsourcing non-woven fabrics anti-filter, the end of draining floral tube is inserted into inside collector drain and is connected to drainpipe, and drainpipe leads to water in the gutter of collector drain bottom.After underground water is pooled in structure of the invention, drained by the gutter that drainpipe leads to gallery bottom.The structure stress condition is preferable, adapts to TBM digging mode, substantially increases speed of application, be conducive to accelerate construction progress, and reduces underground water around pressure pipeline as early as possible, advantageous safely to pressure pipeline.
Description
Technical field
The present invention relates to power station collector drain, especially one kind is suitable for the higher power station pressure of pressure pipeline external water pressure
Hydraulic piping collector drain structure.
Background technique
In hydropower station pressure pipeline design, to reduce external water pressure, tubing thickness is reduced, usually in pressure pipeline region
Collector drain is set.Collector drain generallys use drill bursting construction, and section generally uses gateway opening shape, and gallery arrangement is not sealed generally
It closes.In recent years, with the fast development of tunnel excavation technology, using novel TBM digging mode, not only reduce excavate difficulty,
Construction speed is accelerated, and improves construction safety.To adapt to this digging mode, novel collector drain is needed to arrange shape
Formula.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of hydropower station pressure pipeline collector drain structure, the knots
Structure construction is simple, technologically advanced, applicability is wide, can accelerate pressure pipeline collector drain construction speed, improves working security.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: a kind of hydropower station pressure pipeline drains corridor
Road structure excavates the collector drain of closed annular in pressure pipeline region, and collector drain uses circular cross section, bottom in collector drain
Portion is provided with gutter, and laying is drained with the multiple deep layer drainage holes communicated inside collector drain, deep layer on the outside of collector drain
Hole exits setting draining floral tube, drains floral tube outsourcing non-woven fabrics anti-filter, the end for draining floral tube is inserted into inside collector drain simultaneously
It is connected to drainpipe, drainpipe leads to water in the gutter of collector drain bottom.
The collector drain is arranged in the position that pressure pipeline groundwater level is high, closes on construction channel.
The collector drain is formed by the way of TBM excavation construction, and diameter is not less than 3m.
The deep layer drainage hole is symmetrically arranged in the crown of collector drain along an axial arrangement at least row for collector drain
110~130 ° of position, deep layer drainage hole tilt upwards, and 20~30 ° of hole deviation, 76~110mm of aperture, 30~50m of depth, axis
To 2~4m of array pitch between two neighboring deep layer drainage hole.
50~the 100mm of caliber, 0.2~0.5m of length of the draining floral tube.
The drainpipe is close to collector drain inner wall arrangement, water is led in the gutter of collector drain bottom, drains into mountain
Outside body, level of ground water around pressure pipeline is reduced.
The deep layer drainage hole is two rows, the position along the axially symmetric disposition of collector drain at 110~130 ° of crown.
The beneficial effects of the present invention are: the requirement of the novel TBM excavation construction of Structure adaptation, structure stress condition are preferable.It is suitable
Answer range wide, speed of application is fast, and working security is high, has for level of ground water around reduction pressure pipeline efficient, safety
Feature.
Detailed description of the invention
Fig. 1 is the floor map of hydropower station pressure pipeline collector drain structure of the present invention.
Fig. 2 is the A-A section skiagraph of Fig. 1 (along pressure pipeline direction).
Fig. 3 is the B-B section cross-sectional view of Fig. 1 (perpendicular to pressure pipeline direction).
Fig. 4 is hydropower station pressure pipeline collector drain typical section figure of the present invention.
Fig. 5 is draining floral tube drawing.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description:
As shown in Figs. 1-5, hydropower station pressure pipeline collector drain structure of the invention is excavated in 2 region of pressure pipeline and is closed
The collector drain 1 of cyclization shape, collector drain 1 use circular cross section, and bottom is provided with gutter 6 in collector drain, in draining corridor
The multiple deep layer drainage holes 3 laid on the outside of road 1 and communicated inside collector drain, the outlet of deep layer drainage hole 3 setting draining floral tube 4,
4 outsourcing non-woven fabrics anti-filter (not shown) of floral tube is drained, the end of draining floral tube 4 is inserted into 2 inside of collector drain and the row of being connected to
Water pipe 5, drainpipe 5 lead to water in the gutter 6 of collector drain bottom.
The collector drain 1 is arranged in the position that pressure pipeline groundwater level is high, closes on construction channel.
The collector drain 1 is formed by the way of TBM excavation construction, and diameter is not less than 3m.
The deep layer drainage hole 3 is symmetrically arranged in collector drain 1 along an axial arrangement at least row for collector drain 1
The position that 110~130 ° of crown, deep layer drainage hole tilt upwards, and 20~30 ° of hole deviation, 76~110mm of aperture, depth 30~
50m, 2~4m of array pitch between axially adjacent two deep layer drainage holes.
50~the 100mm of caliber, 0.2~0.5m of length of the draining floral tube 4.
The drainpipe 5 is close to 1 inner wall of collector drain arrangement, and water is led in the gutter 6 of collector drain bottom, is drained into
Outside massif, level of ground water around pressure pipeline is reduced.
It is preferred that the deep layer drainage hole 3 is two rows, along the axially symmetric disposition of collector drain 1 at 110~130 ° of crown
Position.
Closed annular collector drain is excavated in pressure pipeline region of the present invention, and collector drain uses circular cross section, in draining corridor
Deep layer drainage hole is laid in road, in draining hole exits setting draining floral tube, floral tube outsourcing non-woven fabrics anti-filter.According to seepage action of ground water
The deployment scenarios of field rule, pressure pipeline and channel of constructing are determined collector drain selection in structure of the invention in pressure pipeline
Groundwater level is higher, closes on the position in construction channel, to play collector drain lowering of watertable, it is ensured that pressure pipeline
The effect of safety.In conjunction with the requirement of TBM excavation construction, pressure pipeline collector drain is arranged to closed annular, section is circle.
Collector drain is formed by the way of TBM excavation construction, and diameter should be not less than 3m, collector drain length, semicircle position radius
It can be determined according to the arrangement of pressure pipeline and the requirement of TBM excavation construction machinery.After the completion of collector drain excavation construction, arranging
Deep layer drainage hole is beaten in water gallery forms drainage system.Drainage hole tilts (20~30 ° of hole deviation) upwards, 76~110mm of aperture,
30~50m of depth, 2~4m of array pitch.It is arranged in draining hole exits and drains floral tube, 50~100mm of caliber, 0.2~0.5m of length,
Outsourcing non-woven fabrics anti-filter.It is followed by drainpipe according to draining floral tube, water is led in the gutter of collector drain bottom, drains into massif
Outside reduces level of ground water around pressure pipeline.
Embodiment described above is merely to illustrate technical idea and feature of the invention, in the art its object is to make
Technical staff it will be appreciated that the contents of the present invention and implement accordingly, patent model of the invention only cannot be limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit are still fallen in the scope of the patents of the invention.
Claims (7)
1. a kind of hydropower station pressure pipeline collector drain structure, which is characterized in that excavate closed annular in pressure pipeline (2) region
Collector drain (1), collector drain (1) uses circular cross section, and bottom is provided with gutter (6) in collector drain, in draining corridor
The multiple deep layer drainage holes (3) laid on the outside of road (1) and communicated inside collector drain, deep layer drainage hole (3) outlet setting draining
Floral tube (4), drains floral tube (4) outsourcing non-woven fabrics anti-filter, and the end of draining floral tube (4) is inserted into collector drain (2) inside and connects
Have drainpipe (5), drainpipe (5) leads to water in the gutter (6) of collector drain bottom.
2. hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the collector drain (1)
It is arranged in the position that pressure pipeline groundwater level is high, closes on construction channel.
3. hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the collector drain (1)
It is formed by the way of TBM excavation construction, diameter is not less than 3m.
4. hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the deep layer drainage hole
(3) along an axial arrangement at least row for collector drain (1), it is symmetrically arranged in 110~130 ° of crown of position of collector drain (1)
It sets, deep layer drainage hole tilts upwards, and 20~30 ° of hole deviation, 76~110mm of aperture, 30~50m of depth, axially adjacent two depths
2~4m of array pitch between layer drainage hole.
5. hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the draining floral tube (4)
50~100mm of caliber, 0.2~0.5m of length.
6. hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the drainpipe (5) is tight
Collector drain (1) inner wall arrangement is pasted, water is led in the gutter (6) of collector drain bottom, is drained into outside massif, reduces pressure
Pipeline level of ground water.
7. any one of -6 hydropower station pressure pipeline collector drain structure according to claim 1, which is characterized in that the deep layer
Drainage hole (3) is two rows, the position along the axially symmetric disposition of collector drain (1) at 110~130 ° of crown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501349.6A CN110284470A (en) | 2019-06-11 | 2019-06-11 | A kind of hydropower station pressure pipeline collector drain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501349.6A CN110284470A (en) | 2019-06-11 | 2019-06-11 | A kind of hydropower station pressure pipeline collector drain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110284470A true CN110284470A (en) | 2019-09-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910501349.6A Pending CN110284470A (en) | 2019-06-11 | 2019-06-11 | A kind of hydropower station pressure pipeline collector drain structure |
Country Status (1)
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| CN (1) | CN110284470A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607798A (en) * | 2019-10-10 | 2019-12-24 | 中国电建集团北京勘测设计研究院有限公司 | Underground factory building drainage corridor suitable for TMB construction |
| CN112195883A (en) * | 2020-07-02 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Arrangement structure and construction method of pressure pipeline and drainage gallery suitable for TBM construction |
| CN113073620A (en) * | 2021-03-04 | 2021-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Arrangement structure and construction method of adit and drainage gallery in pressure pipeline suitable for TBM construction |
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| CN204370390U (en) * | 2014-12-26 | 2015-06-03 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of phreatic high pressure pipeline drainage system structure |
| CN206512690U (en) * | 2017-01-09 | 2017-09-22 | 中国电建集团中南勘测设计研究院有限公司 | A kind of new gallery |
| CN207392152U (en) * | 2017-09-27 | 2018-05-22 | 中国电建集团华东勘测设计研究院有限公司 | Concrete face rockfill dam dam body water draining structure |
| CN108265683A (en) * | 2018-03-13 | 2018-07-10 | 中水北方勘测设计研究有限责任公司 | The gallery arrangement of RCC dam |
| CN208310794U (en) * | 2017-12-27 | 2019-01-01 | 中铁二院工程集团有限责任公司 | The tunnel-liner of haunch floor type and the drainage system of leaked oil is arranged in tunnel bottom |
| CN210395272U (en) * | 2019-06-11 | 2020-04-24 | 中国电建集团北京勘测设计研究院有限公司 | Power station pipeline under pressure drainage gallery structure |
-
2019
- 2019-06-11 CN CN201910501349.6A patent/CN110284470A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1595274A (en) * | 1977-01-24 | 1981-08-12 | Bochumer Eisen Heintzmann | Closed yieldable gallery arch structure in particular for underground pit galleries |
| CN101446107A (en) * | 2008-12-31 | 2009-06-03 | 中国水电顾问集团华东勘测设计研究院 | Layered drainage structure of underground powerhouse chamber of hydropower station in water-rich region and construction method thereof |
| CN202610943U (en) * | 2012-06-06 | 2012-12-19 | 中国水电顾问集团华东勘测设计研究院 | Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area |
| CN204326032U (en) * | 2014-12-10 | 2015-05-13 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of concrete dam internal drainage gallery structure |
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| CN206512690U (en) * | 2017-01-09 | 2017-09-22 | 中国电建集团中南勘测设计研究院有限公司 | A kind of new gallery |
| CN207392152U (en) * | 2017-09-27 | 2018-05-22 | 中国电建集团华东勘测设计研究院有限公司 | Concrete face rockfill dam dam body water draining structure |
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| CN108265683A (en) * | 2018-03-13 | 2018-07-10 | 中水北方勘测设计研究有限责任公司 | The gallery arrangement of RCC dam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607798A (en) * | 2019-10-10 | 2019-12-24 | 中国电建集团北京勘测设计研究院有限公司 | Underground factory building drainage corridor suitable for TMB construction |
| CN110607798B (en) * | 2019-10-10 | 2024-03-22 | 中国电建集团北京勘测设计研究院有限公司 | Underground factory building drainage corridor suitable for TBM construction |
| CN112195883A (en) * | 2020-07-02 | 2021-01-08 | 中国电建集团华东勘测设计研究院有限公司 | Arrangement structure and construction method of pressure pipeline and drainage gallery suitable for TBM construction |
| CN113073620A (en) * | 2021-03-04 | 2021-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Arrangement structure and construction method of adit and drainage gallery in pressure pipeline suitable for TBM construction |
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