CN104250963B - A kind of flexible buoyancy aid dam and stratified pumping method controlling reservoir stratified pumping - Google Patents
A kind of flexible buoyancy aid dam and stratified pumping method controlling reservoir stratified pumping Download PDFInfo
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- CN104250963B CN104250963B CN201410516530.1A CN201410516530A CN104250963B CN 104250963 B CN104250963 B CN 104250963B CN 201410516530 A CN201410516530 A CN 201410516530A CN 104250963 B CN104250963 B CN 104250963B
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Abstract
A kind of flexible buoyancy aid dam controlling reservoir stratified pumping, be made up of bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and connection bearing, bottom counter-force anchor is steel concrete tubular basis or the single steel balance weight body of steel of attached counterweight; Pulling force anchor cable bottom to be imbedded in the counter-force anchor of bottom and is fixedly connected with bottom counter-force anchor, and the pulling force anchor cable between air supporting cabin and bottom counter-force anchor wraps up 3-10 layer non-woven geotextile; 3-8 the air supporting cabin of connecting up and down is located at the top of pulling force anchor cable and is fixed on pulling force anchor cable in each air supporting cabin by connection bearing.Advantage of the present invention is: this flexible buoyancy aid dam built environment requires low, all can construction operation under reservoir area retaining and water-less environment; The structure on this buoyancy aid dam is simple, and easy to implement, the overall cost on buoyancy aid dam is very low, is only the 10-20% of traditional Stoplog gate, and short construction period, component replacement convenience and maintenance cost are low, have significant economic benefit.
Description
Technical field
The present invention relates to hydraulics and hydraulic structure, particularly a kind of flexible buoyancy aid dam and stratified pumping method controlling reservoir stratified pumping.
Background technology
Current hydropower project develop rapidly, high dam reservoir engineering showed increased.Although high dam reservoir is remarkable at the utilizing status of each side such as flood control, generating, irrigation, also cause some ecological problems thereupon.The wherein the most outstanding impact being the deep-water low-temperature of high dam reservoir area and Habitat for Fish environment is caused.High dam reservoir area because of dam body high, before dam, reservoir water level dark (some can reach 200-300m), makes the temperature difference between surface water and swallow larger.But general dam body hydro plant intake has certain distance according to the water surface, causes temperature of fetching water in power station lower, cause downstream river course water temperature too low.For the shoal of fish in downstream river course water body and other biological colony, low temperature environment causes its amount of survival to decline to some extent.For this reason, certain engineering measure need be adopted, realize the stratified pumping in power station, temperature higher water body in use upper strata, power station is generated electricity, to ensure the hydrobiological normal existence environment in downstream.
Maximum hydraulic structures is adopted to be Stoplog gate in current stratified pumping engineering.So-called Stoplog gate is the basic demand based on reservoir level and water temperature, the surface water under adopting the method for in layer stacked Liangmen to obtain required water level.For Stoplog gate, generally just consider to some extent in project engineering stage, be the work items of overall reservoir engineering, and namely constructed before reservoir filling.And for putting into operation but not arranging the power station of Stoplog gate, if reset Stoplog gate to realize the object of stratified pumping, then need redesign for its concrete engineering and build Stoplog gate, and in the middle of building course, need reservoir emptying just can complete construction.Like this, not only can expend higher Stoplog gate construction cost, and the emptying of reservoir can cause the tremendous economic of generating electricity and irrigation water to lose in work progress.For this reason, the present invention proposes the flexible buoyancy aid dam of a kind of novel water conservancy project, and this buoyancy aid dam is under the prerequisite realizing different water level stratified pumping, and conforming of construction is wider, and retaining, water-less environment all can be constructed, thus be ensure that the economic benefit that reservoir runs.In addition, the expenditure of construction on this buoyancy aid dam is extremely low, short construction period, and simple structure, is easy to realize.
Summary of the invention
The present invention is directed to above-mentioned existing problems, a kind of flexible buoyancy aid dam and the stratified pumping method that control reservoir stratified pumping are provided, the scope that conforms of this buoyancy aid dam construction is wide, and retaining, water-less environment all can be constructed, and construction cost is low, short construction period, simplicity of design, is convenient to change, good economy performance, flexibility is strong, economic and obvious technical effects.
Technical scheme of the present invention:
A kind of flexible buoyancy aid dam controlling reservoir stratified pumping, be made up of bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and connection bearing, bottom counter-force anchor is steel concrete tubular basis or the single steel balance weight body of steel of attached counterweight, wherein attached counterweight steel concrete tubular basis is used for bottom of the reservior Reservoir of Hydropower Station compared with deep slob region, and single steel balance weight body is used for the Reservoir of Hydropower Station that there are shallow-layer mud or non sludge layer in bottom of the reservior; Pulling force anchor cable is steel material, pulling force anchor cable bottom to be imbedded in the counter-force anchor of bottom and is fixedly connected with bottom counter-force anchor, the pulling force anchor cable between air supporting cabin and bottom counter-force anchor wrap up 3-10 layer non-woven geotextile with stop swallow in the middle part of reservoir area to enter to generate electricity in dam body section powerplant intakes; 3-8 the air supporting cabin of connecting up and down is located at the top of pulling force anchor cable and is fixed on pulling force anchor cable by connection bearing by each air supporting cabin, spherical air-bearing cabin is made up of elastomeric material, its size demand fulfillment lift and the stable requirement of bottom counter-force anchor, air supporting cabin side is provided with counterweight so that ensure after the Exhaust Gas of air supporting cabin can submerged; The lateral arrangement quantity basis generating dam body segment length in bottom counter-force anchor, non-woven geotextile pulling force anchor cable and air supporting cabin is determined and is ensured that buoyancy aid dam transverse width is greater than generating dam body section axis of dam length and becomes a mandarin impact to reduce reservoir area edge swallow.
The described stratified pumping method that can control the flexible buoyancy aid dam of reservoir stratified pumping, step is as follows:
1) open inlet gate, water body flow makes flexible buoyancy aid dam integral inclined to generating dam body direction;
2) adjust the flow rate of water flow of air supporting cabin internal gas volume and powerplant intakes, make pulling force anchor cable and multilayer non-woven geotextile and between horizontal plane, become best angle 40-80 °, do not hinder water body to become a mandarin runner to make buoyancy aid dam while obtaining surface water;
3) when reservoir water level declines excessive, then evacuation section air supporting cabin internal gas, hanging, in other air supportings side out of my cabin, to reduce buoyancy aid dam whole height, meets the stratified pumping requirement under low water stage condition because of air supporting cabin counterweight to make it;
4) after reservoir water level goes up again, by the air supporting cabin insufflation gas of emptying, to raise the whole height on buoyancy aid dam, the stratified pumping requirement under high water level is reached.
The described concrete construction method that can control the flexible buoyancy aid dam of reservoir stratified pumping, step is as follows:
1) the prefabricated work of bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and coupling bearing is completed at offshore;
2) by gas injection in air supporting cabin to meet floating requirement;
3) by integral prefabricated structure hoisting to precalculated position, start the bottom counter-force anchor that sinks;
4) sink steadily with bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and coupling bearing enter in water body steadily;
5) have the reservoir area compared with deep slob region for bottom of the reservior, counter-force anchor bottom, bottom is tubular construction, after the counter-force anchor sinking to bottom of the reservior of bottom, then relies on bottom counter-force anchor deadweight to sink in mud by tubular construction, to strengthen the overall pulling test ability on buoyancy aid dam;
6) reservoir area of or non sludge layer more shallow for bottom of the reservior mud, bottom counter-force anchor is single balance weight body, relies on deadweight by bottom counter-force anchor 1 sinking to bottom of the reservior;
7) leveling air supporting cabin, finally completes construction operation.
The invention has the beneficial effects as follows:
This flexible buoyancy aid dam relies on air supporting cabin and multilayer non-woven geotextile to carry out dash operation, by the height regulating the angle of inclination on buoyancy aid dam and the inflation number in air supporting cabin and aeration quantity to adjust buoyancy aid dam flexibly, thus complete different water level condition lower leaf water intaking work; This buoyancy aid dam is for traditional Stoplog gate, and its built environment requires low, all can construction operation under reservoir area retaining and water-less environment; The structure on this buoyancy aid dam is simple, and the design and manufaction of component is all easy to implement, and the overall cost on buoyancy aid dam is very low, is only the 10-20% of traditional Stoplog gate, and short construction period, component replacement convenience and maintenance cost are low, have significant economic benefit.
Accompanying drawing explanation
Fig. 1 is this flexible buoyancy aid dam drawing in side sectional elevation.
Fig. 2 is this flexible buoyancy aid dam close-up top view.
Fig. 3 is the different water level water intaking in this flexible buoyancy aid dam schematic diagram.
Fig. 4 is this flexible buoyancy aid dam work progress schematic diagram.
Air supporting cabin, counter-force anchor 2. pulling force anchor cable 3. air supporting cabin 4. counterweight bottom 1. in figure
5. multilayer non-woven geotextile 6. connection bearing 7. mud 8. generates electricity dam body section 9. powerplant intakes.
Detailed description of the invention
Embodiment:
A kind of flexible buoyancy aid dam controlling reservoir stratified pumping, as shown in Figure 1-2, be made up of bottom counter-force anchor 1, pulling force anchor cable 2, air supporting cabin 3, air supporting cabin counterweight 4, multilayer non-woven geotextile 5 and connection bearing 6, bottom counter-force anchor 1 is steel concrete tubular basis or the single steel balance weight body of steel of attached counterweight, wherein attached counterweight steel concrete tubular basis is used for bottom of the reservior Reservoir of Hydropower Station compared with deep slob region 7, and single steel balance weight body is used for the Reservoir of Hydropower Station that there are shallow-layer mud 7 or non sludge layer 7 in bottom of the reservior; Pulling force anchor cable 2 is steel material, pulling force anchor cable 2 bottom to be imbedded in bottom counter-force anchor 1 and is fixedly connected with bottom counter-force anchor 1, the pulling force anchor cable 2 between air supporting cabin 3 and bottom counter-force anchor 1 wrap up five layers of non-woven geotextile 5 with stop swallow in the middle part of reservoir area to enter to generate electricity in dam body section 8 powerplant intakes 9; Four air supporting cabins 3 of connecting up and down are located at the top of pulling force anchor cable 2 and are fixed on pulling force anchor cable 2 by connection bearing 6 by each air supporting cabin 2, cylindrical shape air supporting cabin 3 is made up of elastomeric material, its size demand fulfillment lift and the stable requirement of bottom counter-force anchor 1, air supporting cabin 3 side is provided with counterweight 4 so that ensure after the Exhaust Gas of air supporting cabin 3 can submerged; Lateral arrangement quantity basis generating dam body section 8 length in bottom counter-force anchor 1, non-woven geotextile pulling force anchor cable and air supporting cabin 3 is determined and is ensured that buoyancy aid dam transverse width is greater than generating dam body section 8 axis of dam length and becomes a mandarin impact to reduce reservoir area edge swallow.
In this embodiment, implementing engineering is concrete gravity dam structure, axis of dam overall length 1000m, height of dam 100m, generating dam body segment length 100m; Reservoir area peak level 90m, lowest water level 60m, range of stage 30m; Powerplant intakes 9 quantity 2, its top is apart from generating dam body section 8 top 50m; There is mud 7 bottom of the reservior, thickness 7m.Bottom counter-force anchor 1 is five, adopts the steel concrete tubular basis of attached counterweight, cylindrical foundation diameter 15m, the dark 5m of cylinder, balance weight 2000t; Pulling force anchor cable 2 is five, long 80m, diameter 3cm; Cylindrical shape air supporting cabin 3 often organizes four, is rubber structure, diameter 5m, height 50m; Air supporting cabin counterweight 4 is strip, and single balance weight is 2t.
The described stratified pumping method that can control the flexible buoyancy aid dam of reservoir stratified pumping, as shown in Figure 3
Step is as follows:
1) open inlet gate, water body flow makes flexible buoyancy aid dam integral inclined to generating dam body 8 direction; 2) flow rate of water flow of air supporting cabin 3A, 3B, 3C, 3D internal gas volume and powerplant intakes 9 is adjusted, make pulling force anchor cable 2 and multilayer non-woven geotextile 5 and between horizontal plane, become best angle 60 °, not hindering water body to become a mandarin runner to make buoyancy aid dam while obtaining surface water; 3) when reservoir water level drops to 70m, can an emptying air supporting cabin 3A internal gas, hanging, outside other air supporting cabins 3, to reduce buoyancy aid dam whole height, meets the stratified pumping requirement under low water stage condition because of air supporting cabin counterweight 4A to make it; 4) after reservoir water level increases to original position again, the air supporting cabin 3A of emptying is re-filled gas, adjust air supporting cabin 3A, 3B, 3C, 3D internal gas simultaneously, to raise the whole height on buoyancy aid dam, reach the stratified pumping requirement under high water level.
The described concrete construction method that can control the flexible buoyancy aid dam of reservoir stratified pumping, as shown in Figure 4, step is as follows:
1) the prefabricated work of bottom counter-force anchor 1, pulling force anchor cable 2, air supporting cabin 3, air supporting cabin counterweight 4, multilayer non-woven geotextile 5, coupling bearing 6 is completed at offshore; 2) by gas injection in air supporting cabin 3, floating requirement is met; 3) by integral prefabricated structure hoisting to precalculated position, start the bottom counter-force anchor 1 that sinks; 4) sink steadily with bottom counter-force anchor 1, pulling force anchor cable 2, air supporting cabin 3, air supporting cabin counterweight 4, multilayer non-woven geotextile 5, coupling bearing 6 enter in water body steadily; 5) by after counter-force anchor 1 sinking to bottom of the reservior of bottom, rely on bottom counter-force anchor 1 to conduct oneself with dignity and its tubular construction is sunk in mud 7; 6) leveling air supporting cabin 3, finally completes construction operation.
Buoyancy aid dam various informative, in addition to the implementation, the buoyancy aid dam of similar type and the method for stratified pumping thereof also all belong to the protection domain of this patent.
Claims (3)
1. one kind can control the flexible buoyancy aid dam of reservoir stratified pumping, it is characterized in that: be made up of bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and connection bearing, bottom counter-force anchor is the steel concrete tubular basis of attached counterweight or single steel balance weight body, wherein attached counterweight steel concrete tubular basis is used for bottom of the reservior Reservoir of Hydropower Station compared with deep slob region, and single steel balance weight body is used for the Reservoir of Hydropower Station that there are shallow-layer mud or non sludge layer in bottom of the reservior; Pulling force anchor cable is steel material, pulling force anchor cable bottom to be imbedded in the counter-force anchor of bottom and is fixedly connected with bottom counter-force anchor, and the pulling force anchor cable between air supporting cabin and bottom counter-force anchor wraps up 3-10 layer non-woven geotextile and enters to stop swallow in the middle part of reservoir area the powerplant intakes generated electricity in dam body section; 3-8 the air supporting cabin of connecting up and down is located at the top of pulling force anchor cable and is fixed on pulling force anchor cable by connection bearing by each air supporting cabin, spherical air-bearing cabin is made up of elastomeric material, its size demand fulfillment lift and the stable requirement of bottom counter-force anchor, air supporting cabin side is provided with counterweight so that ensure after the Exhaust Gas of air supporting cabin can submerged; The lateral arrangement quantity basis generating dam body segment length in bottom counter-force anchor, non-woven geotextile, pulling force anchor cable and air supporting cabin is determined and is ensured that buoyancy aid dam transverse width is greater than generating dam body section axis of dam length and becomes a mandarin impact to reduce reservoir area edge swallow.
2. can control the stratified pumping method on the flexible buoyancy aid dam of reservoir stratified pumping as claimed in claim 1, it is characterized in that step is as follows:
1) open inlet gate, water body flow makes flexible buoyancy aid dam integral inclined to generating dam body direction;
2) adjust the flow rate of water flow of air supporting cabin internal gas volume and powerplant intakes, make pulling force anchor cable and multilayer non-woven geotextile and between horizontal plane, become best angle 40-80 °, do not hinder water body to become a mandarin runner to make buoyancy aid dam while obtaining surface water;
3) when reservoir water level declines excessive, then evacuation section air supporting cabin internal gas, hanging, in other air supportings side out of my cabin, to reduce buoyancy aid dam whole height, meets the stratified pumping requirement under low water stage condition because of air supporting cabin counterweight to make it;
4) after reservoir water level goes up again, by the air supporting cabin insufflation gas of emptying, to raise the whole height on buoyancy aid dam, the stratified pumping requirement under high water level is reached.
3. can control the concrete construction method on the flexible buoyancy aid dam of reservoir stratified pumping as claimed in claim 1, it is characterized in that step is as follows:
1) the prefabricated work of bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and coupling bearing is completed at offshore;
2) by gas injection in air supporting cabin to meet floating requirement;
3) by integral prefabricated structure hoisting to precalculated position, start the bottom counter-force anchor that sinks;
4) sink steadily with bottom counter-force anchor, pulling force anchor cable, air supporting cabin, air supporting cabin counterweight, multilayer non-woven geotextile and coupling bearing enter in water body steadily;
5) have the reservoir area compared with deep slob region for bottom of the reservior, counter-force anchor bottom, bottom is tubular construction, after the counter-force anchor sinking to bottom of the reservior of bottom, then relies on bottom counter-force anchor deadweight to sink in mud by tubular construction, to strengthen the overall pulling test ability on buoyancy aid dam;
6) reservoir area of or non sludge layer more shallow for bottom of the reservior mud, bottom counter-force anchor is single balance weight body, relies on deadweight by bottom counter-force anchor sinking to bottom of the reservior;
7) leveling air supporting cabin, finally completes construction operation.
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| CN201410516530.1A CN104250963B (en) | 2014-09-30 | 2014-09-30 | A kind of flexible buoyancy aid dam and stratified pumping method controlling reservoir stratified pumping |
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| CN201410516530.1A CN104250963B (en) | 2014-09-30 | 2014-09-30 | A kind of flexible buoyancy aid dam and stratified pumping method controlling reservoir stratified pumping |
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| CN104250963B true CN104250963B (en) | 2016-03-02 |
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| CN105735241B (en) * | 2015-04-13 | 2017-12-05 | 天津大学 | Application of the box-type suction foundation siphon gallery water intaking structure on soft soil foundation |
| CN104878728B (en) * | 2015-06-18 | 2016-12-07 | 天津大学前沿技术研究院有限公司 | A kind of floating extension convolution flexibility dash curtain |
| CN105464059B (en) * | 2015-12-29 | 2017-07-04 | 天津大学前沿技术研究院有限公司 | A kind of floating-bridge type water partition curtain cloth apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352448A (en) * | 2013-06-14 | 2013-10-16 | 山东省水利勘测设计院 | Layered water intake gate |
| CN203559454U (en) * | 2013-11-07 | 2014-04-23 | 嘉陵江亭子口水利水电开发有限公司 | Stratified water taking device for dam water inlet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002008523A2 (en) * | 2000-07-24 | 2002-01-31 | Asc Group Inc. | Selective reservoir withdrawal system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352448A (en) * | 2013-06-14 | 2013-10-16 | 山东省水利勘测设计院 | Layered water intake gate |
| CN203559454U (en) * | 2013-11-07 | 2014-04-23 | 嘉陵江亭子口水利水电开发有限公司 | Stratified water taking device for dam water inlet |
Non-Patent Citations (1)
| Title |
|---|
| 斜坡竖井式新型分层取水口设计;张迈等;《浙江水利科技》;20030430(第02期);第30-31页 * |
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