CN103174115B - Ecological flow pipe arrangement type for concrete dam - Google Patents
Ecological flow pipe arrangement type for concrete dam Download PDFInfo
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- CN103174115B CN103174115B CN201310126023.2A CN201310126023A CN103174115B CN 103174115 B CN103174115 B CN 103174115B CN 201310126023 A CN201310126023 A CN 201310126023A CN 103174115 B CN103174115 B CN 103174115B
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- ecological flow
- dam
- discharge orifice
- concrete
- downstream
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- 239000004567 concrete Substances 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000005299 abrasion Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000001680 brushing Effects 0.000 claims description 4
- 239000011382 roller-compacted concrete Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 210000000088 Lip Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
Abstract
The invention discloses an ecological flow pipe arrangement type for a concrete dam. A flood release orifice flow channel is arranged on a dam body; a long release trough close to a shore is arranged at the downstream of the flow channel; an inlet of an ecological flow pipe is formed on the side wall of the flood release orifice flow channel on the downstream side of a flood release orifice accident overhaul door arranged on the concrete dam body; an outlet in the downstream of the ecological flow pipe is formed in the side wall in the release trough arranged outside the dam body on the downstream side of a flood release orifice working door; and a control gate valve of the ecological flow pipe is arranged on the downstream side outside the dam body. The ecological flow pipe arrangement type can meet a use requirement on the release ecological flow, and the structure is simplified; the safety of a structure is guaranteed; running and maintenance in the future are facilitated; and high connection with a riverway at the downstream after ecological flow release is finished is guaranteed.
Description
Technical field
The ecological flow buret that the present invention relates in a kind of Hydraulic and Hydro-Power Engineering arranges pattern, especially a kind of ecological flow pipe arrangement type of concrete dam.
Background technology
Usually the pattern arranging ecological flow buret in concrete dam body is: perforate separately; Regulating gate is arranged in the structure of hanging outside dam body upstream; Outlet arranges energy-dissipating installation separately.This kind of layout will bring following problem: in (1) concrete dam body, perforate increases, and construction interference strengthens; (2) generally, for guaranteeing releasing of ecological flow, ecological flow buret input elevation need be arranged in below level of dead water, and when dam body height is comparatively large, operation depth of water luffing is larger, conventional ecological flow buret arrangement maintenance difficulty will be very large; (3) river valley is narrow, and aperture arranges that limited width or shape design of arch dams degree of hanging by the feet are comparatively large, under need arranging the situations such as longer outer outstanding structure, arranges that the structures such as ecological flow buret are also comparatively difficult; (4) ecological flow also should consider independent process with being connected of downstream river course after releasing.
Summary of the invention
The technical problem to be solved in the present invention is, provide that a kind of applicability is comparatively strong, structure is comparatively simple, easy access is safeguarded, under the current let out be connected the ecological flow pipe arrangement type of good concrete dam with downstream river course.
The technical solution adopted in the present invention is: a kind of ecological flow pipe arrangement type of concrete dam, and dam body is provided with discharge orifice runner; Discharge orifice flow paths downstream have close bank slope arrange length let out groove; The import of ecological flow buret is arranged on the sidewall in the discharge orifice runner in the discharge orifice emergency overhaul gate downstream that concrete dam is arranged with it; On the sidewall that what the outlet of ecological flow buret was arranged in that discharge orifice service gate downstream dam body arranges outward let out in groove, the control gate valve of ecological flow buret is arranged at the downstream outside dam body.
Described ecological flow buret be (broken line type, the import of ecological flow buret and discharge orifice runner oblique, the outlet of ecological flow buret with let out groove oblique.
To be positioned near the import of ecological flow buret letting out on groove of certain limit near the discharge orifice runner inner wall of certain limit and the outlet of ecological flow buret and to be provided with steel lining, steel lining be embedded in concrete dam body and let out that ecological flow steel pipe in groove is smooth to be welded.
On described steel lining, brushing has the coating of resistant abrasion, anti-corrosion.
The import of described ecological flow buret is arranged in the discharge orifice of lower elevation in dam body discharge orifice.
Described concrete dam is gravity dam or arch dam, and dam body dam material is normal concrete or roller compacted concrete.
Described ecological flow buret is steel pipe.
The beneficial effect that the present invention produces is: the instructions for use both meeting ecological flow of releasing, in turn simplify structure, be conducive to the safety of structure; Be convenient to operation and maintenance from now on; Ensure that ecological flow is connected with the good of downstream river course after releasing.
Accompanying drawing explanation
Fig. 1 is the ecological flow pipe arrangement type generalized section of concrete dam of the present invention.
Fig. 2 is the ecological flow pipe arrangement type floor map of concrete dam of the present invention.
In figure:
1---dam body;
2---discharge orifice runner;
3---ecological flow buret;
4---let out groove;
5---the import of ecological flow buret;
6---the outlet of ecological flow buret;
7---steel lining;
8---emergency overhaul gate;
9---service gate;
10---control gate valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1, 2, the ecological flow pipe arrangement type of concrete dam of the present invention, dam body 1 is provided with discharge orifice runner 2; Discharge orifice runner 2 downstream have close bank slope arrange length let out groove 4; The import 5 of ecological flow buret 3 is arranged on the sidewall in the discharge orifice runner 2 in discharge orifice emergency overhaul gate 8 downstream that concrete dam body 1 is arranged; On the sidewall that what the outlet 6 of ecological flow buret 3 was arranged in that discharge orifice service gate 9 downstream dam body arranges outward let out in groove 4, the control gate valve 10 of ecological flow buret is arranged at the downstream outside dam body.
Described ecological flow buret 3 be (broken line type, import 5 and discharge orifice runner 2 oblique of ecological flow buret, the outlet 6 of ecological flow buret with let out groove 4 oblique.
Near the import 5 being positioned at ecological flow buret, near discharge orifice runner 2 inwall of certain limit and the outlet 6 of ecological flow buret, letting out on groove 4 of certain limit is provided with steel lining 7, steel lining 7 be embedded in concrete dam body 1 and let out that ecological flow steel pipe in groove 4 is smooth to be welded.
On described steel lining 7, brushing has the coating of resistant abrasion, anti-corrosion.
The import 5 of described ecological flow buret is arranged in the discharge orifice of lower elevation in dam body discharge orifice.
Described concrete dam is gravity dam or arch dam, and dam body dam material is normal concrete or roller compacted concrete.
Described ecological flow buret 3 is steel pipe.
Specifically, dam body 1 is provided with discharge orifice runner 2; Discharge orifice runner 2 downstream have close bank slope arrange length let out groove 4; The pattern that ecological flow buret 3 is arranged be (broken line type, its import 5 shares with discharge orifice runner 2, is arranged on the sidewall in the runner in discharge orifice emergency overhaul gate 8 downstream of setting on concrete dam body 1; The groove 4 of letting out that outlet 6 and the discharge orifice dam body of the ecological flow buret 3 in downstream are arranged outward shares, on the sidewall that what outlet was arranged in that discharge orifice service gate 9 downstream dam body arranges outward let out in groove 4; Import 5 with outlet 6 all with discharge orifice runner 2 or let out groove 4 oblique.Be positioned at the discharge orifice runner 2 of certain limit near ecological flow buret import 5 or outlet 6 or let out on groove 4 and need to arrange steel lining 7, and the coating with the performance such as resistant abrasion, anti-corrosion can be brushed on steel lining 7; The facility such as control gate valve 10 grade of ecological flow buret is placed in the downstream outside dam body 1.
Be described in detail below in conjunction with specific embodiment:
Certain medium hydropower station engineering, dam is rolled concrete arch dam, maximum height of dam 107m, dam crest arc length 160m.Adopt the arrangement of flood relief through dam, flood and sand discharging building is made up of three overflow surface bay, two flood discharge mesopores, sand discharge holes.Overflow surface bay elevation of weir crest 1062.50m, aperture width 10.0m, energy dissipating adopts flip trajectory bucket mode; Flood discharge sand surfing mesopore import floor elevation is 1020.00m, and port size is 5m × 6.5m (wide × high), adopts flip trajectory bucket mode; Import floor elevation in sand discharge hole is 1025.00m, and port size is 2 × 4m (wide × high).Wherein connect the length of arranging on right bank bank under sand discharge hole and let out groove, export as special-shaped bucket lip, adopt flip trajectory bucket mode.
To release requirement for meeting dam to the ecological flow of factory building section, being provided with ecological flow buret.Let out ecological flow under needing dry season and be about 7.2m
3/ s.As Fig. 1, shown in 2, ecological flow buret 3 is arranged in the discharge orifice runner 2 in sand discharge hole, be an internal diameter be D800mm, wall thickness 10mm, length is about the steel pipe of 29m, ecological flow buret import 5 is arranged on the right side wall of Emergency Gate 8 rear portion, sand discharge hole discharge orifice runner 2, adopt pipe laying mode on the right side of the discharge orifice runner 2 in sand discharge hole through dam body 1, in dam body 1 downstream and let out between groove 4 and be provided with 1023.7m elevation fill concrete platform, at this section of ecological flow buret 3 with exposed conduit mode connection control gate valve 10, control gate valve 10 downstream ecological flow buret 3 and let out groove 4 abutment wall through downstream, sand discharge hole, groove section is let out in lower sluicing stream access sand discharge hole and enters downstream river course.
Ecological flow buret import and export section and the sand discharge axially bored line angle of cut are respectively 45 °, 60 °, for the water sand drift speed that prevents bend loss current larger and cavitation erosion are on the abrasion of sand discharge hole flow passage structure and impact, join in discharge orifice runner 2 and ecological flow buret 3 import and export section the steel lining 7 being provided with thickness 20mm in the certain limit of position, and brushing has the coating of the performance such as resistant abrasion, anti-corrosion.
Layout pattern of the present invention is particularly useful for following situation: (1) arranges ecological flow tubular structure on high dam dam body; (2) river valley is narrow, and limited width is arranged in aperture; (3) shape design of arch dams degree of hanging by the feet is comparatively large, need arrange longer outer outstanding structure; (4) discharge orifice downstream have close bank slope arrange length let out groove.The present invention is different from the method to set up of ecological flow tubular structure routine on concrete dam body, the import of ecological flow buret, outlet and discharge orifice are shared, import is arranged on discharge orifice emergency overhaul gate downstream, eliminating routine need at facilities such as the outer outstanding structure of dam body upstream setting and gates, namely be beneficial to maintenance from now on, decrease the setting of the outer attached structure of dam body; The groove of letting out that outlet and discharge orifice dam body are arranged outward shares, and solves the lower problem flowing and be connected with downstream river course that sluices preferably.
Above-described embodiment is only for illustration of technological thought of the present invention and feature, its object is to enable those skilled in the art understand content of the present invention and implement according to this, only can not limit the scope of the claims of the present invention with the present embodiment, namely the equal change done of all disclosed spirit or modification, still drop in the scope of the claims of the present invention.
Claims (6)
1. an ecological flow pipe arrangement type for concrete dam, is characterized in that, concrete dam body (1) is provided with discharge orifice runner (2); Discharge orifice runner (2) downstream have close bank slope arrange length let out groove (4); The import (5) of ecological flow buret (3) is arranged on the sidewall in the discharge orifice runner (2) in upper discharge orifice emergency overhaul gate (8) downstream arranged of concrete dam body (1); On the sidewall that what the outlet (6) of ecological flow buret (3) was arranged in that discharge orifice service gate (9) downstream dam body arranges outward let out in groove (4), the control gate valve (10) of ecological flow buret is arranged at the downstream outside dam body.
2. the ecological flow pipe arrangement type of concrete dam according to claim 1, it is characterized in that, described ecological flow buret (3) is " (" broken line type, the import (5) of ecological flow buret and discharge orifice runner (2) oblique, the outlet (6) of ecological flow buret with let out groove (4) oblique.
3. the ecological flow pipe arrangement type of concrete dam according to claim 1 and 2, it is characterized in that, near the import (5) being positioned at ecological flow buret, near discharge orifice runner (2) inwall of certain limit and the outlet (6) of ecological flow buret, letting out on groove (4) of certain limit is provided with steel lining (7), steel lining (7) be embedded in concrete dam body (1) and let out that ecological flow buret in groove (4) is smooth to be welded.
4. the ecological flow pipe arrangement type of concrete dam according to claim 3, is characterized in that, the upper brushing of described steel lining (7) has the coating of resistant abrasion, anti-corrosion.
5. the ecological flow pipe arrangement type of concrete dam according to claim 1, is characterized in that, described concrete dam is gravity dam or arch dam, and dam body dam material is normal concrete or roller compacted concrete.
6. the ecological flow pipe arrangement type of concrete dam according to claim 1, is characterized in that, described ecological flow buret (3) is steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126023.2A CN103174115B (en) | 2013-04-12 | 2013-04-12 | Ecological flow pipe arrangement type for concrete dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126023.2A CN103174115B (en) | 2013-04-12 | 2013-04-12 | Ecological flow pipe arrangement type for concrete dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174115A CN103174115A (en) | 2013-06-26 |
| CN103174115B true CN103174115B (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310126023.2A Active CN103174115B (en) | 2013-04-12 | 2013-04-12 | Ecological flow pipe arrangement type for concrete dam |
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| Country | Link |
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| CN (1) | CN103174115B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334403A (en) * | 2013-07-26 | 2013-10-02 | 马向前 | Reservoir capable of regulating water flow of waterfall and regulating method |
| CN105155488A (en) * | 2015-07-03 | 2015-12-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement mode and structure of small ecological flow unit of hydropower station underground powerhouse |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851910A (en) * | 2010-05-26 | 2010-10-06 | 四川大学 | Water guide board arranged on outlet of pressure drainage channel |
| CN101949145A (en) * | 2010-10-09 | 2011-01-19 | 中国水电顾问集团成都勘测设计研究院 | Water supply and drainage system of plunge pool |
| CN102720168A (en) * | 2012-04-01 | 2012-10-10 | 中国水电顾问集团贵阳勘测设计研究院 | Apparatus and method for controlling ecological flow |
| CN203174568U (en) * | 2013-04-12 | 2013-09-04 | 中国水电顾问集团北京勘测设计研究院 | Arrangement type of ecological flow pipe of concrete dam |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425335B2 (en) * | 1975-06-02 | 1979-08-27 |
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2013
- 2013-04-12 CN CN201310126023.2A patent/CN103174115B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851910A (en) * | 2010-05-26 | 2010-10-06 | 四川大学 | Water guide board arranged on outlet of pressure drainage channel |
| CN101949145A (en) * | 2010-10-09 | 2011-01-19 | 中国水电顾问集团成都勘测设计研究院 | Water supply and drainage system of plunge pool |
| CN102720168A (en) * | 2012-04-01 | 2012-10-10 | 中国水电顾问集团贵阳勘测设计研究院 | Apparatus and method for controlling ecological flow |
| CN203174568U (en) * | 2013-04-12 | 2013-09-04 | 中国水电顾问集团北京勘测设计研究院 | Arrangement type of ecological flow pipe of concrete dam |
Non-Patent Citations (1)
| Title |
|---|
| JP特开昭51-142835A 1976.12.08 * |
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