CN106919772A - High-velocity flow free flow drain cavern gas supplementary structure method of construction and gas supplementary structure - Google Patents
High-velocity flow free flow drain cavern gas supplementary structure method of construction and gas supplementary structure Download PDFInfo
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- CN106919772A CN106919772A CN201710269508.5A CN201710269508A CN106919772A CN 106919772 A CN106919772 A CN 106919772A CN 201710269508 A CN201710269508 A CN 201710269508A CN 106919772 A CN106919772 A CN 106919772A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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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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Abstract
The present invention relates to Hydraulic and Hydro-Power Engineering field, especially one kind flexibly the air compensation according to needed for can be adjusted, and it is easy to the high-velocity flow free flow drain cavern gas supplementary structure method of construction and gas supplementary structure that carry out the design of drain cavern gas supplementary structure and construction of designer's convenient and efficient, comprise the following steps：A, first, determines the structure of free flow drain cavern, according to the structure determination flow rate of water flow change of free flow drain cavern and tonifying Qi air demand position greatly；B, the self-evident underground activities lock chamber flowed in water hole start, and subsection setup amounts to n flood discharging tunnel tonifying Qi hole successively；C, each flood discharging tunnel tonifying Qi hole cross-sectional area obtained according to above-mentioned steps, determine flood discharging tunnel tonifying Qi hole end face construction area size；D, constructed according to the free flow drain cavern for determining and the position in flood discharging tunnel tonifying Qi hole and size and be finally completed high-velocity flow free flow drain cavern gas supplementary structure.Among design and construction present invention is particularly suitable for various high-velocity flow free flow drain cavern gas supplementary structures.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering field, especially a kind of high-velocity flow free flow drain cavern gas supplementary structure construction side
Method and gas supplementary structure.
Background technology
In the design and operation of the free flow drain cavern of water conservancy and hydropower facility, if considered not the ventilation problem of drain cavern
In week, often occur that cavitation shifts to an earlier date, flow-shape is unstable, gate acts the horizontal force that is acted on gate during closing and vertical
The problems such as power is also increased as, correspondingly makes gate structure weightening, the increase of headstock gear capacity, weakens the ventilation effect of air entraining facilities
Really, air-flow velocity is excessive in breather pipe or tonifying Qi hole, causes noise or even causes the phenomenons such as vibration.
In addition, free flow drain cavern high-velocity flow is in addition to the remaining width air movement of towing forms air-flow, current aeration is also carried under one's arms portion
Point gas downstream defeated shifting, therefore air compensation is carried under one's arms by remaining width throughput and current aeration under free flow drain cavern normal operating condition
Throughput two parts are constituted.Conventional free-flow tunnel is typically combined to the air-inlet duct that remaining width is supplied with door well is arranged in free-flow tunnel
Initiating terminal, the effect of dragging of high-velocity flow is depended on due to remaining width air velocity, and this tonifying Qi mode is more than for hole line length
The long range free-flow tunnel of 1000m is substantially inadequate, in recent years in the big discharge long range free flow drain cavern layout design of high water head
Increased tonifying Qi hole, but set location to tonifying Qi hole, quantity, build, section size and systematic are not available for technical staff's letter
The method for designing of convenient to operate, relies primarily on normal pressure physical experiments and is studied, and normal pressure physical experiments are by gravity phase
Carried out like criterion, it is dissimilar to aeration or simulation of air flow, thus it is often less than normal to tonifying Qi hole Section Design, it is more from recent years
The former MSDS visible subsidy gas hole wind speed of seeing of high water head drain cavern operation is excessive, considerably beyond code requirement, even as high as 100m/s.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and flexibly the air compensation according to needed for can be adjusted, and just
In the high-velocity flow free flow drain cavern tonifying Qi knot for carrying out the design of drain cavern gas supplementary structure and construction of designer's convenient and efficient
Structure method of construction and gas supplementary structure.
The technical solution adopted for the present invention to solve the technical problems is：High-velocity flow free flow drain cavern gas supplementary structure is built
Method, comprises the following steps：
A, first, determines the structure of free flow drain cavern, according to free flow drain cavern the change of structure determination flow rate of water flow and
The big position of tonifying Qi air demand；
B, the self-evident underground activities lock chamber flowed in water hole start, and subsection setup amounts to n flood discharging tunnel tonifying Qi hole, n successively
=1,2 ..., i-1, i, i-th tonifying Qi hole cross-sectional area determined by following formula：
Ai=(Qa+Qz+Qk-(Q1+Q2+…+Qi-1))/40；
Qa=k1vwhaB/2；
Qz=0.005Fr2vwBh；
Qk=k2vwBh；
Wherein：Ai：I-th tonifying Qi hole cross-sectional area, m2；
Qa：It is more than i-th tonifying Qi hole correspondence free flow drain cavern water surface that the maximum of remaining width takes tolerance, m3/s；
Qz：I-th tonifying Qi hole correspondence free flow drain cavern water surface self aeration takes tolerance, m3/s；
Qk：I-th tonifying Qi hole correspondence free flow drain cavern aerator takes tolerance, m3/s；
Q1…Qi-1：1st to the i-th -1 air compensation summation in tonifying Qi hole, m3/s；
ha：I-th tonifying Qi hole correspondence free flow drain cavern section section remaining height average height, m；
vw：I-th tonifying Qi hole correspondence free flow drain cavern section section current mean flow rate, m/s；
h:The i-th tonifying Qi hole correspondence free flow drain cavern section section clear water depth of water, m；
B：Clear span, m in the correspondence free flow drain cavern section hole of i-th tonifying Qi hole；
Fr：I-th Froude number of tonifying Qi hole correspondence free flow drain cavern section non-aerated flow；
k1：Remaining height takes tolerance correction factor, generally takes 0.9~1.1；
k2：Aerator aeration rate coefficient, generally takes 0.05~0.20；
C, each flood discharging tunnel tonifying Qi hole cross-sectional area obtained according to above-mentioned steps, determine the end face construction of flood discharging tunnel tonifying Qi hole
Size；
D, the position of the free flow drain cavern according to determination and flood discharging tunnel tonifying Qi hole and size construct and final complete
Into high-velocity flow free flow drain cavern gas supplementary structure.
It is further, high-velocity flow free flow drain cavern gas supplementary structure, including free flow drain cavern, on the free flow drain cavern
Subsection setup has at least one flood discharging tunnel tonifying Qi hole, and wherein the first tonifying Qi of flood discharging tunnel hole is arranged at the underground activities of free flow drain cavern
At lock chamber.
It is further that the hole line in the flood discharging tunnel tonifying Qi hole is straight structure.
It is knot independent of each other between the flood discharging tunnel tonifying Qi hole and the permanent cavern of free flow drain cavern to be further
Structure.
It is further that the cross sectional shape in the flood discharging tunnel tonifying Qi hole is circular, square or circular arch stalk shape.
It is further that the flood discharging tunnel tonifying Qi hole is concrete lining structure.
It is further to be provided with osculum in the flood discharging tunnel tonifying Qi hole.
The beneficial effects of the invention are as follows：Traditional structure design is big to the set location in tonifying Qi hole, quantity, build, section
It is small not have the systematic method for designing for being available for technical staff's simplicity to operate, rely primarily on normal pressure physical experiments and studied,
Normal pressure physical experiments are carried out by gravity similarity criterion, dissimilar to aeration or simulation of air flow, therefore to tonifying Qi hole section
Design is often less than normal, excessive from the former MSDS visible subsidy gas hole wind speed of seeing of high water head drain cavern operation more in recent years, much surpasses
Cross code requirement.Therefore, current method still can not accurately determine tonifying Qi hole area according to actual conditions, after cannot also ensureing
The accuracy of phase tonifying Qi.The present invention sees analysis by the former of the big discharge long range free flow drain cavern of high water head, and combines
High-velocity flow theory analysis, set location, quantity, build, section size to tonifying Qi hole etc. are available for technology there is provided system
The method for designing of the easy operation of personnel, enables designer quick and precisely to arrange tonifying Qi hole, while accurately estimation tonifying Qi hole area,
Its rational build is designed, so as to ensure operation safety and the control of investment of flood discharging tunnel.Meanwhile, when actually used also very
It is convenient with it is flexible, ensure accuracy while, substantially increase the ability that Structure adaptation is actually needed.The present invention is especially suitable
Among the design and construction of various high-velocity flow free flow drain cavern gas supplementary structures.
Brief description of the drawings
Fig. 1 is the structural representation of free flow drain cavern of the invention.
Marked in figure：Free flow drain cavern 1, underground activities lock chamber 2, underground activities lock chamber access tunnel 3, flood discharging tunnel tonifying Qi hole
4th, the first tonifying Qi of flood discharging tunnel hole 41, the second tonifying Qi of flood discharging tunnel hole 42, the second tonifying Qi of flood discharging tunnel hole 43.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
High-velocity flow free flow drain cavern gas supplementary structure as shown in Figure 1, including free flow drain cavern 1, the free flow drain cavern 1
Upper subsection setup has at least one flood discharging tunnel tonifying Qi hole 4, and wherein the first tonifying Qi of flood discharging tunnel hole 41 is arranged at the ground of free flow drain cavern 1
At lower work lock chamber 2.Structure design step of the invention is such：
A, first, determines the structure of free flow drain cavern 1, according to the structure determination flow rate of water flow change of free flow drain cavern 1 with
And the big position of tonifying Qi air demand；
B, the self-evident underground activities lock chamber 2 flowed in water hole 1 start, and subsection setup amounts to n flood discharging tunnel tonifying Qi hole successively
4, n=1,2 ..., i-1, i, i-th tonifying Qi hole cross-sectional area determined by following formula：
Ai=(Qa+Qz+Qk-(Q1+Q2+…+Qi-1))/40；
Qa=k1vwhaB/2；
Qz=0.005Fr2vwBh；
Qk=k2vwBh；
Wherein：Ai：I-th tonifying Qi hole cross-sectional area, m2；
Qa：It is more than i-th tonifying Qi hole correspondence free flow drain cavern water surface that the maximum of remaining width takes tolerance, m3/s；
Qz：I-th tonifying Qi hole correspondence free flow drain cavern water surface self aeration takes tolerance, m3/s；
Qk：I-th tonifying Qi hole correspondence free flow drain cavern aerator takes tolerance, m3/s；
Q1…Qi-1：1st to the i-th -1 air compensation summation in tonifying Qi hole, m3/s；
ha：I-th tonifying Qi hole correspondence free flow drain cavern section section remaining height average height, m；
vw：I-th tonifying Qi hole correspondence free flow drain cavern section section current mean flow rate, m/s；
h:The i-th tonifying Qi hole correspondence free flow drain cavern section section clear water depth of water, m；
B：Clear span, m in the correspondence free flow drain cavern section hole of i-th tonifying Qi hole；
Fr：I-th Froude number of tonifying Qi hole correspondence free flow drain cavern section non-aerated flow；
k1：Remaining height takes tolerance correction factor, generally takes 0.9~1.1；General, remaining height person bigger than normal get the small value；
k2：Aerator aeration rate coefficient, generally takes 0.05~0.20；General 30~the 50m/s of flow velocity, flow velocity big person take greatly
Value.
C, each cross-sectional area of flood discharging tunnel tonifying Qi hole 4 obtained according to above-mentioned steps, determine that the end face of flood discharging tunnel tonifying Qi hole 4 is applied
Work size；
D, the position of the free flow drain cavern 1 according to determination and flood discharging tunnel tonifying Qi hole 4 and size construct and final
Complete high-velocity flow free flow drain cavern gas supplementary structure.
In the middle of actual, the high-velocity flow of free flow drain cavern 1 in addition to the remaining width air movement of towing forms air-flow, current aeration
Also carry under one's arms portion gas downstream defeated shifting, therefore air demand is by remaining width throughput Q under free flow drain cavern normal operating conditionaAnd current
Throughput two parts composition that aeration is carried under one's arms, the throughput that current aeration is carried under one's arms takes tolerance Q including water surface self aerationzWith mix
Gas bank takes tolerance Qk。
Design principle of the invention is such：Current to the power effect of dragging of air in remaining width mainly and high-velocity flow
Table that turbulent fluctuation causes fluctuation degree of roughness and swashing splashes that saltation water droplet situation is relevant, the flow velocity and turbulent fluctuation state of aqueous vapor boundary
It is the principal element for determining current to draught power size.Flow rate of water flow is higher, and Free Surface turbulent fluctuation is stronger, to empty in remaining width
The effect of dragging of gas is also bigger.Leading portion free flow drain cavern flow rate of water flow is relatively small, and flow turbulence is weak, so as to empty in remaining width
The effect of dragging of gas is also relatively small, and air inflow is less；Long range free flow drain cavern high flow rate, strong turbulence flow concentrate in after
Section, its flow cavitation number is small, is the position for easily inducing cavitation current for its flow condition, it is therefore desirable to set aeration and subtract
To prevent cavitation erosion, the throughput needed for this air entraining facilities operation is taken from remaining width air-flow to erosion facility, and further increasing needs
Gas total amount, thus need to according to n tonifying Qi hole of position subsection setup in air demand greatly of flow rate of water flow change in free flow tunnel, n=1,
2 ..., i-1, i, flow-shape stabilization is just can guarantee that, the aeration effect of air mixing corrosion reducing facility could be improved, be conducive to flood discharging tunnel
Safe operation.
And i-th tonifying Qi hole section size and the air demand at corresponding free flow drain cavern position, total benefit in preceding i-1 tonifying Qi hole
Tolerance is relevant with permission survival wind speed in tonifying Qi hole.Survival wind speed is allowed to be not more than 40m/s by related specifications requirement in tonifying Qi hole.
The air demand at i-th tonifying Qi hole correspondence free flow drain cavern position is as previously described by Qa+Qz+QkComposition, therefore i-th tonifying Qi hole
Air compensation is that the air demand at correspondence free flow drain cavern position subtracts total air compensation in preceding i-1 tonifying Qi hole, and it is divided by tonifying Qi
Survival wind speed is allowed to be i-th tonifying Qi hole cross-sectional area in hole.QzThe Hall derivation of equation is calculated by aeration depth of water experience to obtain
Arrive.QkIn empirical coefficient k2Value is summarized and obtained by model test and former sight Analysis on Results, generally takes 0.05~0.2, flow velocity one
As 30~50m/s, flow velocity big person take large values.It is more than the free flow drain cavern water surface that the maximum of remaining width takes tolerance QaDue to water-air two phase flows
The more difficult accurate calculating of complexity of research, also needs to combine its influence factor and theory analysis, and enter by former achievement of seeing in recent years
Row amendment.Q is influenceed as previously describedaHydraulic factors mainly include flow rate of water flow and the various water surface situations caused by turbulent flow
Include tonifying Qi hole area, length and arrangement Deng, structural factor, the length of free flow drain cavern, structure and gate arrangement.
The air current flow more than water surface is mainly is drawn by the drag of the water surface, three kinds of active forces of the inlet and outlet pressure gradient in hole and gravity
Rise, according to gas dynamic equation group, and assume that air-flow is incompressible, stabilization, and gas density and dynamic viscosity
Coefficient is constant, through calculating and sees the subtriangular distribution of velocity flow profile that achievement checking finds remaining height air-flow through original, i.e.,
The flow factor influence that the comprehensive function of barometric gradient and gravity is produced is smaller, and the shear flow for being pulled by water and being produced is main
Influence factor, so the maximum for simplifying more than the drain cavern water surface remaining width when calculating takes tolerance Qa=k1vwhaB/2, k1It is remaining height
Tolerance correction factor is taken, 0.9~1.1 is generally taken, remaining height person bigger than normal get the small value.
Due to before the position of underground activities lock chamber 2 to there is pressure hole, current from there is pressure condition to be converted into free flow state when, it is false
Surely it is 0 to have gas content in pressure hole, must first set flood discharging tunnel tonifying Qi hole 4, i.e. the first tonifying Qi of flood discharging tunnel hole 41.
In order to ensure the smooth and abundance of tonifying Qi, it is generally preferable to the hole line in the flood discharging tunnel tonifying Qi hole 4 be put down, it is suitable, straight
Structure, so as to ensure the carrying out of tonifying Qi to greatest extent.Furthermore it is possible to select to allow the flood discharging tunnel tonifying Qi hole 4 to be sluiced with free flow
It is structure independent of each other between the permanent cavern in hole 1, so as to ensure the independence in flood discharging tunnel tonifying Qi hole 4 and the safety of operation
Property, and finally ensure that the stabilization of tonifying Qi is carried out.With reference to practical experience, the cross sectional shape in preferably described flood discharging tunnel tonifying Qi hole 4 is circle
Shape, square or circular arch stalk shape.The flood discharging tunnel tonifying Qi hole 4 can select to be concrete lining structure, to reduce hole table roughness,
Make surface smooth, ventilate smooth.Osculum can also be set in flood discharging tunnel tonifying Qi hole 4, to reduce external water pressure, it is ensured that structure
Safety.
The present invention sees analysis by the former of the big discharge long range free flow drain cavern of high water head, and combines high-velocity flow
Theory analysis, set location, quantity, build, section size to tonifying Qi hole etc. are available for technical staff easy there is provided system
The method for designing of operation, enables designer quick and precisely to arrange tonifying Qi hole, while accurately estimation tonifying Qi hole area, designs its conjunction
The build of reason, so as to ensure operation safety and the control of investment of flood discharging tunnel.Meanwhile, when actually used also it is very convenient with it is clever
It is living, while accuracy is ensured, substantially increase the ability that Structure adaptation is actually needed.Present invention is particularly suitable for various height
Among the design and construction of fast current free flow drain cavern gas supplementary structure, with very wide market promotion prospect.
Claims (7)
1. high-velocity flow free flow drain cavern gas supplementary structure method of construction, it is characterised in that comprise the following steps：
A, first, determines the structure of free flow drain cavern (1), according to the structure determination flow rate of water flow change of free flow drain cavern (1) with
And the big position of tonifying Qi air demand；
B, the self-evident underground activities lock chamber (2) flowed in water hole (1) start, and subsection setup amounts to n flood discharging tunnel tonifying Qi hole successively
(4), n=1,2 ..., i-1, i, i-th tonifying Qi hole cross-sectional area determined by following formula：
Ai=(Qa+Qz+Qk-(Q1+Q2+…+Qi-1))/40；
Qa=k1vwhaB/2；
Qz=0.005Fr2vwBh；
Qk=k2vwBh；
Wherein：Ai：I-th tonifying Qi hole cross-sectional area, m2；
Qa：It is more than i-th tonifying Qi hole correspondence free flow drain cavern water surface that the maximum of remaining width takes tolerance, m3/s；
Qz：I-th tonifying Qi hole correspondence free flow drain cavern water surface self aeration takes tolerance, m3/s；
Qk：I-th tonifying Qi hole correspondence free flow drain cavern aerator takes tolerance, m3/s；
Q1…Qi-1：1st to the i-th -1 air compensation summation in tonifying Qi hole, m3/s；
ha：I-th tonifying Qi hole correspondence free flow drain cavern section section remaining height average height, m；
vw：I-th tonifying Qi hole correspondence free flow drain cavern section section current mean flow rate, m/s；
h:The i-th tonifying Qi hole correspondence free flow drain cavern section section clear water depth of water, m；
B：Clear span, m in the correspondence free flow drain cavern section hole of i-th tonifying Qi hole；
Fr：I-th Froude number of tonifying Qi hole correspondence free flow drain cavern section non-aerated flow；
k1：Remaining height takes tolerance correction factor, and span is 0.9~1.1；
k2：Aerator aeration rate coefficient, span is 0.05~0.20；
C, each flood discharging tunnel tonifying Qi hole (4) cross-sectional area obtained according to above-mentioned steps, determine that flood discharging tunnel tonifying Qi hole (4) end face is applied
Work size；
D, the position of the free flow drain cavern (1) according to determination and flood discharging tunnel tonifying Qi hole (4) and size construct and final
Complete high-velocity flow free flow drain cavern gas supplementary structure.
2. the high-velocity flow free flow for being obtained as the high-velocity flow free flow drain cavern gas supplementary structure method of construction described in claim 1 is let out
Water hole gas supplementary structure, it is characterised in that：Including free flow drain cavern (1), subsection setup has at least one on the free flow drain cavern (1)
Individual flood discharging tunnel tonifying Qi hole (4), wherein the first tonifying Qi of flood discharging tunnel hole (41) are arranged at the underground activities lock chamber of free flow drain cavern (1)
(2) place.
3. high-velocity flow free flow drain cavern gas supplementary structure as claimed in claim 2, it is characterised in that：The flood discharging tunnel tonifying Qi hole
(4) hole line is straight structure.
4. high-velocity flow free flow drain cavern gas supplementary structure as claimed in claim 2, it is characterised in that：The flood discharging tunnel tonifying Qi hole
(4) it is structure independent of each other and the permanent cavern of free flow drain cavern (1) between.
5. high-velocity flow free flow drain cavern gas supplementary structure as claimed in claim 2, it is characterised in that：The flood discharging tunnel tonifying Qi hole
(4) cross sectional shape is circular, square or circular arch stalk shape.
6. high-velocity flow free flow drain cavern gas supplementary structure as claimed in claim 2, it is characterised in that：The flood discharging tunnel tonifying Qi hole
(4) it is concrete lining structure.
7. high-velocity flow free flow drain cavern gas supplementary structure as claimed in claim 2, it is characterised in that：The flood discharging tunnel tonifying Qi hole
(4) osculum is provided with.
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| CN201710269508.5A CN106919772B (en) | 2017-04-24 | 2017-04-24 | Construction method of air supplementing structure of high-speed water flow open flow water drain hole and air supplementing structure |
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| CN201710269508.5A CN106919772B (en) | 2017-04-24 | 2017-04-24 | Construction method of air supplementing structure of high-speed water flow open flow water drain hole and air supplementing structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108330932A (en) * | 2018-04-26 | 2018-07-27 | 中国电建集团成都勘测设计研究院有限公司 | Flood discharging tunnel joint air-supplement system |
| CN109295939A (en) * | 2018-10-29 | 2019-02-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of air compensating system and its ventilation amount control method of high-velocity flow tunnel |
| CN109371928A (en) * | 2018-10-25 | 2019-02-22 | 四川大学 | A kind of flow-guiding structure of free-flow spillway tunnel ventilation tonifying Qi facility |
| CN110158551A (en) * | 2019-04-30 | 2019-08-23 | 华能澜沧江水电股份有限公司 | A kind of optimum design method of flood discharging tunnel multi-pass stomata air supply system |
| CN110197001A (en) * | 2019-04-30 | 2019-09-03 | 华能澜沧江水电股份有限公司 | Flood discharging tunnel venthole and remaining height combined optimization design method |
| CN111794194A (en) * | 2020-07-23 | 2020-10-20 | 中国电建集团成都勘测设计研究院有限公司 | Side wall type air supply tunnel structure of flood discharge tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108330932A (en) * | 2018-04-26 | 2018-07-27 | 中国电建集团成都勘测设计研究院有限公司 | Flood discharging tunnel joint air-supplement system |
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| CN109295939A (en) * | 2018-10-29 | 2019-02-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of air compensating system and its ventilation amount control method of high-velocity flow tunnel |
| CN110158551A (en) * | 2019-04-30 | 2019-08-23 | 华能澜沧江水电股份有限公司 | A kind of optimum design method of flood discharging tunnel multi-pass stomata air supply system |
| CN110197001A (en) * | 2019-04-30 | 2019-09-03 | 华能澜沧江水电股份有限公司 | Flood discharging tunnel venthole and remaining height combined optimization design method |
| CN110197001B (en) * | 2019-04-30 | 2022-09-16 | 华能澜沧江水电股份有限公司 | Combined optimization design method for ventilation holes and residual amplitude at top of spillway tunnel |
| CN111794194A (en) * | 2020-07-23 | 2020-10-20 | 中国电建集团成都勘测设计研究院有限公司 | Side wall type air supply tunnel structure of flood discharge tunnel |
| CN111794194B (en) * | 2020-07-23 | 2022-03-11 | 中国电建集团成都勘测设计研究院有限公司 | Side wall type air supply tunnel structure of flood discharge tunnel |
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