CN110080182B - Diversion tunnel plug energy dissipation structure and arrangement method thereof - Google Patents
Diversion tunnel plug energy dissipation structure and arrangement method thereof Download PDFInfo
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- CN110080182B CN110080182B CN201910465430.3A CN201910465430A CN110080182B CN 110080182 B CN110080182 B CN 110080182B CN 201910465430 A CN201910465430 A CN 201910465430A CN 110080182 B CN110080182 B CN 110080182B
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 230000003628 erosive effect Effects 0.000 claims abstract description 7
- 238000010008 shearing Methods 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 7
- 239000011440 grout Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000009991 scouring Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241001529849 Dracocephalum Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of water conservancy and hydropower engineering construction diversion, and discloses a diversion tunnel plug energy dissipation structure which comprises a diversion tunnel and an ecological water discharge hole arranged in the diversion tunnel, wherein a plurality of stages of the tunnel plugs are arranged in the diversion tunnel and positioned at the upstream of the ecological water discharge hole, each stage of the tunnel plugs comprises a hole plug built along the cross section of the diversion tunnel, and a plurality of hole plug water discharge holes are arranged in the hole plug plugs. The invention also discloses a method for arranging the energy dissipation structure of the diversion tunnel plug. The energy dissipation structure of the diversion tunnel plug and the arrangement method thereof avoid the scouring damage of high-speed water flow to the body section and the outlet of the original diversion tunnel at the downstream side of the ecological diversion tunnel, ensure the operation safety of the reconstructed ecological diversion tunnel, and solve and avoid the problem of cavitation erosion damage possibly existing in the interior of the tunnel plug when the downstream is in a free outflow state.
Description
Technical Field
The invention relates to the technical field of water conservancy and hydropower engineering construction diversion, in particular to a diversion tunnel plug energy dissipation structure and an arrangement method thereof.
Background
The ecological water discharge hole controlled by the radial gate is reconstructed into the diversion tunnel, so that the problems of continuous flow, high-flow water discharge, river ecology maintenance, reduction of water retaining pressure of the diversion tunnel gate and the like in the diversion tunnel gate can be solved, and the problems of large dam body diversion bottom hole arrangement difficulty, complex dam body structure, influence on the engineering straight line construction period, short use time, large engineering investment and the like in the dam body diversion bottom hole are solved and avoided.
The reconstructed ecological water discharge hole can replace the diversion bottom hole function of the dam body, but under the high-water-head operation condition, the original diversion tunnel body section and the outlet on the downstream side of the ecological water discharge hole form high-speed water flow for the engineering with higher maximum operation water head of the reconstructed ecological water discharge hole, and if proper energy dissipation measures are not adopted, the scouring damage is caused to the original diversion tunnel body section and the outlet on the downstream side of the ecological water discharge hole, so that the operation safety of the ecological water discharge hole is affected. For the engineering that the original diversion tunnel at the downstream side of the ecological water discharge hole has a bent section, the high-speed water flow in the hole passes through the bent section, and the diversion tunnel is possibly scoured and damaged.
In order to ensure the safe operation of the reconstructed ecological water discharge hole under the condition of high water head, proper energy dissipaters are required to be arranged in the reconstructed ecological water discharge hole.
The energy dissipater in the tunnel artificially produces large turbulent whirl through abrupt change of the flow section or other engineering measures inside the water tunnel, so that part of energy of water flow is converted into heat energy, and the effects of reducing the energy of the water flow outlet, reducing investment of energy dissipation buildings and optimizing the arrangement of hydraulic buildings are achieved. The energy dissipater is often arranged in the project of rebuilding the diversion tunnel into the spillway tunnel, and the existing types are as follows: the device comprises a stilling well, a rotational flow type stilling tool, an in-hole stilling pool, an orifice plate and a hole plug, wherein the stilling well, the rotational flow type stilling tool, the in-hole stilling pool, the orifice plate and the hole plug are shown in the following table:
the built diversion tunnel at home and abroad is reconstructed into the statistical table of the energy dissipater in the flood discharge tunnel engineering tunnel
The diversion tunnel is rebuilt into a flood discharging tunnel project, a 'Dragon head' rebuilding scheme is generally adopted, a larger height difference exists between the inlet of the flood discharging tunnel and the outlet of the original diversion tunnel, and the conditions of arranging a stilling well, a rotational flow type energy dissipater and an in-tunnel stilling pool are compared, but the stilling is required to excavate an underground cavity with larger size, and has high requirement on geological conditions, complex structure and large engineering investment; the orifice plate type energy dissipater has simple structure and high energy dissipation rate, but cavitation is easy to occur at the orifice plate ring sharp edge, special material protection is needed on the surface of the orifice plate, the orifice plate self structure is subjected to large water flow impact force, the self structure is stable and difficult to ensure, and the orifice plate outlet is easy to generate higher water wings to influence the overcurrent safety; the hydraulic control system has the advantages that the shape and the structure of the hole plug type energy dissipation body are simple, only the flow diversion tunnel of the hydropower station is rebuilt into the flood discharge tunnel project at present, the hole plug type energy dissipation body is adopted, but in the flow diversion tunnel rebuilt into the flood discharge tunnel project, the outlet position of the flow diversion tunnel is lower, the outlet is in a submerged state, the hydrostatic pressure at the position of the hole plug is very high, the ratio of the water passing area of the hole plug hole opening to the water passing area of the original flow diversion tunnel needs to be reduced as much as possible, so that the energy dissipation efficiency is improved, and meanwhile, enough positive pressure in the hole plug is ensured, and cavitation is avoided.
When the diversion tunnel is rebuilt into an ecological water discharge hole controlled by the radial gate, the height difference of an inlet and an outlet is small, the conditions of arranging a stilling well, a rotational flow type energy dissipater and an in-hole stilling pool are not provided, the upstream running water level of the rebuilt ecological water discharge hole needs to run from a diversion tunnel bottom plate Gao Chengyun to a middle Kong Gaocheng, the running water level amplitude is large, the running water head is high, the downstream is generally in a free outflow state, the running condition is bad, and the requirements on the energy dissipater and the self safety of a pore plate structure are difficult to meet by adopting a pore plate type energy dissipater; currently, hole plug type energy dissipaters are used in pressurized streams and no precedent exists for the downstream free stream operating conditions.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides an energy dissipation structure of a diversion tunnel plug and an arrangement method thereof, which avoid scouring damage to the body section and the outlet of the original diversion tunnel at the downstream side of an ecological water discharge tunnel by high-speed water flow, ensure the operation safety of the reconstructed ecological water discharge tunnel, and solve and avoid the problem of cavitation erosion damage possibly existing in the interior of the tunnel plug in a free outflow state at the downstream side.
In order to achieve the purpose, the energy dissipation structure of the diversion tunnel plug comprises a diversion tunnel and an ecological water discharge hole arranged in the diversion tunnel, wherein a plurality of stages of the plug are arranged in the diversion tunnel and located at the upstream of the ecological water discharge hole, each stage of the plug comprises a plug built along the cross section of the diversion tunnel, and a plurality of plug water discharge holes are arranged in the plug plugs.
Preferably, a plurality of hole plug vent holes communicated with the outside are formed in the tops of the positions between the two adjacent hole plugs.
Preferably, the ecological water drain hole is provided with a reconstruction plug, and a plurality of hole plug ventilation holes communicated with the outside are formed in the top of the position between the reconstruction plug and the most downstream hole plug.
Preferably, a plurality of shallow shearing resistant grooves extending up and down along the side wall of the diversion tunnel are arranged at intervals along the axial direction of the diversion tunnel on the contact surface of the side wall of the original lining concrete of the diversion tunnel and the plug of the hole plug, and the safety margin of the plug structure is improved by utilizing the concrete shearing resistance embedded in the shallow shearing resistant grooves.
Preferably, a plurality of shearing-resistant anchor rods are arranged on the contact surface of the original lining concrete bottom plate of the diversion tunnel and the plug, and the shearing-resistant anchor rods are utilized to directly provide shearing resistance, so that the safety margin of the plug is further improved.
Preferably, a plurality of shearing-resistant anchor rods are arranged on the contact surface of the lower part of the original lining concrete side wall of the diversion tunnel and the plug, and the shearing-resistant anchor rods are utilized to directly provide shearing resistance, so that the safety margin of the plug is further improved.
Preferably, a grout stopping stem is arranged between the upstream and downstream sides of the hole plug head of each stage and the contact surfaces of the diversion tunnel primary lining concrete side wall and the primary lining concrete top arch, so that the later grouting effect of the contact surfaces is ensured, the primary lining concrete does not need to be removed, and the inside of the diversion tunnel does not need to be dug in an expanding mode.
Preferably, the length of the plug head of the plug in each stage is reduced from upstream to downstream, and the size of the plug water drain hole of the plug in each stage is reduced from upstream to downstream.
The arrangement method of the diversion tunnel plug energy dissipation structure comprises the following steps:
a) Determining the arrangement level number n of the hole plugs and the sizes of the hole plugs and the water discharging holes of the first level to the n level according to the reconstructed running water head and energy dissipation requirements of the ecological water discharging holes;
b) Determining the length of the hole plug plugs at the first level to the nth level according to the load conditions born by the hole plugs at the first level to the nth level;
c) According to the safety margin requirement of the hole plugs of each stage, determining the arrangement pattern of the shallow shearing grooves of the hole plugs of the first stage to the nth stage and the arrangement pattern of the shearing anchor rods of the hole plugs of the first stage to the nth stage;
d) Determining the arrangement pattern of the slurry stopping stems of the hole plugs from the first level to the n level according to the arrangement pattern of the hole plugs from the first level to the n level determined in the step A) and the step B);
e) And determining the arrangement form of the vent holes of the hole plug between adjacent hole plugs and between the nth-stage hole plug and the reconstruction plug according to the position, possibly having cavitation erosion, inside the hole plug according to the experimental result of the hydraulic model.
Compared with the prior art, the invention has the following advantages:
1. the energy dissipation effect is obvious, the diversion tunnel is reconstructed into an ecological water discharge hole outlet controlled by the radial gate, the original diversion tunnel body section at the downstream side of the ecological water discharge hole outlet and the flow velocity level of the original diversion tunnel outlet are reduced to be within a safe level range;
2. by adopting the scheme of arranging the vent holes, the cavitation problem possibly occurring in the energy dissipation structure of the hole plug is avoided, and the operation safety of the energy dissipation structure and the ecological water discharge hole is ensured;
3. the energy dissipation scheme simplifies the construction of protection engineering and saves the economic investment of protection in the hole and downstream.
Drawings
FIG. 1 is a schematic plan view of a diversion tunnel plug energy dissipating structure of the present invention;
FIG. 2 is a longitudinal cross-sectional view of FIG. 1;
fig. 3 is a schematic cross-sectional view of the hole plug of fig. 1.
The reference numerals of the components in the drawings are as follows:
diversion tunnel 1, ecological water drain hole 2, hole stopper 3, hole stopper plug head 4, hole stopper water drain hole 5, hole stopper vent 6, ecological water drain hole reconstruction plug 7, original lining concrete side wall 8, shallow shearing-resistant groove 9, shearing-resistant anchor rod 10, grout stopping stalk 11, original lining concrete bottom plate 12, original lining concrete top arch 13.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 and 2, the diversion tunnel plug energy dissipation structure comprises a diversion tunnel 1 and an ecological water discharge hole 2 arranged in the diversion tunnel 1, wherein two stages of the plugs 3 are arranged in the diversion tunnel 1 and positioned at the upstream of the ecological water discharge hole 2, each stage of the plugs 3 comprises a plug head 4 built along the cross section of the diversion tunnel 1, two plug water discharge holes 5 are arranged side by side at the lower part of each plug 4, the two plug water discharge holes 5 of each stage of the plugs 3 are symmetrically arranged along the vertical central axis of the plug 4, a reconstruction plug 7 is arranged at the position of the ecological water discharge hole 2, and four plug vent holes 6 communicated with the outside are arranged at the tops of the positions between the first stage of the plugs 3 and the second stage of the plugs 3 and the ecological water discharge hole reconstruction plug 7 of the ecological water discharge hole 2.
In addition, in order to improve the safety margin of the tunnel plug 3, as shown in fig. 3, a plurality of shallow shearing resistant grooves 9 extending up and down along the side wall of the tunnel 1 are arranged on the contact surface of the side wall 8 of the original lining concrete of the tunnel 1 and the plug 4 at intervals along the axial direction of the tunnel plug 1, a plurality of shearing resistant anchor rods 10 are arranged on the contact surface of the bottom plate 12 of the original lining concrete of the tunnel 1 and the plug 4, a plurality of shearing resistant anchor rods 10 are arranged on the contact surface of the bottom plate 8 of the original lining concrete of the tunnel 1 and the plug 4, and in order to ensure the later grouting effect of the contact surfaces of the two sides of the plug 4 and the side wall 8 of the original lining concrete of the tunnel 1 and the top 13 of the original lining concrete, slurry blocking stalks 11 are arranged between the two sides of the plug 4 and the contact surfaces of the original lining concrete side wall 8 of the tunnel 1 and the top arch 13 of the original lining concrete of the tunnel 1, the original lining concrete of the top 13 are not required to be removed, and the original lining concrete of the bottom plate 12 of the tunnel 1 is not required to be expanded inside the tunnel 1.
In this embodiment, the length of the plug 4 of each stage of plug 3 decreases from upstream to downstream, and the size of the plug drain hole 5 of each stage of plug 3 decreases from upstream to downstream.
The arrangement method of the energy dissipation structure of the diversion tunnel plug of the embodiment comprises the following steps:
a) Determining the arrangement stage number 2 of the hole plugs 3, the size of the first-stage hole plug water discharge holes 5 and the size of the second-stage hole plug water discharge holes 5 according to the operation water head and energy dissipation requirements of the reconstructed ecological water discharge holes 2, namely the height and width of the first-stage hole plug water discharge holes 5 and the height and width of the second-stage hole plug water discharge holes 5;
b) According to the load conditions borne by the first-stage and second-stage hole plugs 3, determining the length of the first-stage hole plug 4 and the length of the second-stage hole plug 4;
c) According to the safety margin requirement of each stage of hole plugs 3, determining the arrangement pattern of the shallow shearing resistant grooves 9 of the first stage of hole plugs 3 and the shallow shearing resistant grooves 9 of the second stage of hole plugs 3, and the arrangement pattern of the shearing resistant anchor rods 10 of the first stage of hole plugs 3 and the shearing resistant anchor rods 10 of the second stage of hole plugs 3;
d) Determining the arrangement pattern of the grout stopping stems 11 of the first-stage hole plugs 3 and the grout stopping stems 11 of the second-stage hole plugs 3 according to the arrangement pattern of the first-stage hole plugs 3 determined in the step A) and the step B);
e) And determining the arrangement form of the vent holes 6 of the hole plug for the position possibly having cavitation erosion inside the hole plug 3 according to the experimental result of the hydraulic model.
When the method is used, after the upstream water flow enters the diversion tunnel 1, the energy of the water flow is effectively reduced under the actions of the hole plug head 4, the hole plug water drain hole 5, the hole plug vent hole 6 and the reconstruction plug 7.
In the project of reconstructing the ecological water discharge hole 2 by using the 5# diversion tunnel 1 on the right bank of the Wudongde hydropower station, the two-stage plug 3 can reduce the water head by about 30m, the average flow rate of the outlet section of the ecological water discharge hole 2 is reduced from 31.5m/s to 20.17m/s, the average flow rate of the outlet section of the 5# diversion tunnel 1 is reduced from 13.82m/s to 9.88m/s, the average flow rate of the outlet of the ecological water discharge hole 2 is reduced to below the maximum flow rate of the operation period of the diversion tunnel 1, the flow rate of the outlet of the 5# diversion tunnel 1 is reduced to be within a safety range, the operation safety of the tunnel in the initial water storage period is ensured, and the energy dissipation effect is remarkable;
an air bag exists at the top of a sudden expansion section between the second-stage hole plug 3 and the ecological water discharge hole reconstruction plug 7 before the hole plug vent hole 6 is not arranged in the ecological water discharge hole 2 reconstructed by the right bank 5# diversion tunnel 1 of the Wu Dongde hydropower station, and the maximum negative pressure of-10.0x9.8kPa is locally existed at the inlets of the second-stage hole plug 3 and the ecological water discharge hole reconstruction plug 7, so that cavitation erosion problems are formed in the reconstructed hole, after the hole plug vent hole 6 measures are adopted, the air bag and the local negative pressure disappear, the cavitation erosion problems are well solved, and the operation safety of the ecological water discharge hole 2 is ensured;
in the engineering of reconstructing the ecological water discharge hole 2 by the right bank 5# diversion tunnel 1 of the Wu Dongde hydropower station, after the measures of adopting the hole plug vent holes 6, the investment of the top steel lining of the suddenly-expanded section between the second-stage hole plug 3 and the ecological water discharge hole reconstruction plug 7 is saved by about 50 ten thousand yuan, and the investment of the anti-flushing protection engineering of the original diversion tunnel 1 at the outlet of the reconstructed ecological water discharge hole 2 and the outlet of the right bank 5# diversion tunnel 1 is saved by about 500 ten thousand yuan.
According to the diversion tunnel plug energy dissipation structure and the arrangement method thereof, the diversion tunnel 1 is rebuilt into the arc gate controlled ecological diversion tunnel 2 outlet, the flow velocity level of the original diversion tunnel 1 at the downstream side of the ecological diversion tunnel 2 outlet and the original diversion tunnel 1 outlet is reduced to be within the safe level range, the energy dissipation effect is obvious, the scouring damage of high-speed water flow to the original diversion tunnel 1 at the downstream side of the ecological diversion tunnel 2 and the outlet is avoided, and the scheme of arranging the hole plug vent hole 6 is adopted, so that cavitation corrosion problems possibly occurring in the hole plug energy dissipation structure are avoided, and the safety of the energy dissipation structure and the operation safety of the ecological diversion tunnel 2 are ensured; in addition, the energy dissipation structure and the arrangement method thereof simplify the construction of the anti-impact protection engineering, and save the economic investment of the anti-impact protection in the hole and downstream.
Claims (6)
1. The utility model provides a diversion tunnel hole stopper energy dissipation structure, is in including diversion tunnel (1) and setting in inside ecological water discharge hole (2) of diversion tunnel (1), its characterized in that: a plurality of stages of hole plugs (3) are arranged in the diversion tunnel (1) and positioned at the upstream of the ecological water discharge hole (2), each stage of hole plugs (3) comprises a hole plug (4) built along the cross section of the diversion tunnel (1), and a plurality of hole plug water discharge holes (5) are arranged in the hole plug (4);
a plurality of hole plug vent holes (6) communicated with the outside are arranged at the top of the position between the two adjacent hole plugs (3);
the ecological water discharge hole (2) is provided with a reconstruction plug (7), and a plurality of hole plug vent holes (6) communicated with the outside are formed in the top of the position between the reconstruction plug (7) and the most downstream hole plug (3);
the length of a hole plug (4) of the hole plug (3) of each stage is sequentially reduced from upstream to downstream, and the size of a hole plug water discharging hole (5) of the hole plug (3) of each stage is sequentially reduced from upstream to downstream.
2. The diversion tunnel plug energy dissipation structure of claim 1, wherein: the method is characterized in that shallow shear grooves (9) extending up and down along the sidewall of the diversion tunnel (1) are arranged on the contact surface of the original lining concrete sidewall (8) of the diversion tunnel (1) and the hole plug (4) at intervals along the axial direction of the diversion tunnel (1).
3. The diversion tunnel plug energy-dissipating structure of claim 2, wherein: a plurality of shearing-resistant anchor rods (10) are arranged on the contact surface of the original lining concrete bottom plate (12) of the diversion tunnel (1) and the hole plug (4).
4. The diversion tunnel plug energy-dissipating structure according to claim 3, wherein: a plurality of shearing-resistant anchor rods (10) are arranged on the contact surface of the lower part of the original lining concrete side wall (8) of the diversion tunnel (1) and the hole plug (4).
5. The diversion tunnel plug energy-dissipating structure of claim 4, wherein: and a grout stopping stem (11) is arranged between the upstream and downstream sides of the hole plug plugs (4) at each stage and the contact surfaces of the original lining concrete side walls (8) and the original lining concrete top arches (13) of the diversion tunnel (1).
6. A method for arranging a diversion tunnel plug energy-dissipating structure as set forth in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
a) Determining the arrangement level number n of the hole plugs (3) and the size of the hole plug water discharging hole (5) from the first level to the n level according to the reconstructed running water head and energy dissipation requirements of the ecological water discharging hole (2);
b) Determining the length of the hole plug plugs (4) at the first level to the nth level according to the load conditions born by the hole plugs (3) at the first level to the nth level;
c) According to the safety margin requirement of each stage of the hole plug (3), determining the arrangement pattern of the shallow shearing grooves (9) of the hole plugs (3) of the first stage to the nth stage and the arrangement pattern of the shearing anchor rods (10) of the hole plugs (3) of the first stage to the nth stage;
d) Determining the arrangement pattern of the grout stopping stems (11) of the hole plugs (3) at the first to nth stages according to the arrangement pattern of the hole plugs (3) at the first to nth stages determined in the step A) and the step B);
e) According to the experimental results of the hydraulic model, determining the arrangement form of the vent holes (6) of the hole plug between adjacent hole plugs (3) and between the nth-stage hole plug and the reconstruction plug (7) for the position possibly having cavitation erosion inside the hole plug (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465430.3A CN110080182B (en) | 2019-05-30 | 2019-05-30 | Diversion tunnel plug energy dissipation structure and arrangement method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910465430.3A CN110080182B (en) | 2019-05-30 | 2019-05-30 | Diversion tunnel plug energy dissipation structure and arrangement method thereof |
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| CN110080182A CN110080182A (en) | 2019-08-02 |
| CN110080182B true CN110080182B (en) | 2023-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120909A (en) * | 1982-01-11 | 1983-07-19 | ミハイル セルゲ−ヴイツチ ハルチエンコ | Excessive water channel of dam |
| CN1873107A (en) * | 2006-06-20 | 2006-12-06 | 四川大学 | Dissipater of hole stopper |
| CN1888320A (en) * | 2006-08-03 | 2007-01-03 | 四川大学 | Vent and bank pressing energy dissipater |
| CN102322047A (en) * | 2011-08-05 | 2012-01-18 | 四川大学 | Broken line inlet type hole plug energy dissipater |
| CN102787588A (en) * | 2012-08-16 | 2012-11-21 | 华北水利水电学院 | Shaft with vertical eddy-flow energy dissipaters of hole stoppers |
| CN106869091A (en) * | 2017-01-13 | 2017-06-20 | 四川大学 | Dissipater of hole stopper and its aeration method are pressed in a kind of having for achievable air mixing corrosion reducing |
| CN210262967U (en) * | 2019-05-30 | 2020-04-07 | 长江勘测规划设计研究有限责任公司 | Energy dissipation structure of diversion tunnel plug |
-
2019
- 2019-05-30 CN CN201910465430.3A patent/CN110080182B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120909A (en) * | 1982-01-11 | 1983-07-19 | ミハイル セルゲ−ヴイツチ ハルチエンコ | Excessive water channel of dam |
| CN1873107A (en) * | 2006-06-20 | 2006-12-06 | 四川大学 | Dissipater of hole stopper |
| CN1888320A (en) * | 2006-08-03 | 2007-01-03 | 四川大学 | Vent and bank pressing energy dissipater |
| CN102322047A (en) * | 2011-08-05 | 2012-01-18 | 四川大学 | Broken line inlet type hole plug energy dissipater |
| CN102787588A (en) * | 2012-08-16 | 2012-11-21 | 华北水利水电学院 | Shaft with vertical eddy-flow energy dissipaters of hole stoppers |
| CN106869091A (en) * | 2017-01-13 | 2017-06-20 | 四川大学 | Dissipater of hole stopper and its aeration method are pressed in a kind of having for achievable air mixing corrosion reducing |
| CN210262967U (en) * | 2019-05-30 | 2020-04-07 | 长江勘测规划设计研究有限责任公司 | Energy dissipation structure of diversion tunnel plug |
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