EP0021880B1 - Wehrverschluss für hydraulische Sperre - Google Patents

Wehrverschluss für hydraulische Sperre Download PDF

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Publication number
EP0021880B1
EP0021880B1 EP80400729A EP80400729A EP0021880B1 EP 0021880 B1 EP0021880 B1 EP 0021880B1 EP 80400729 A EP80400729 A EP 80400729A EP 80400729 A EP80400729 A EP 80400729A EP 0021880 B1 EP0021880 B1 EP 0021880B1
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EP
European Patent Office
Prior art keywords
jack
wicket
rod
accordance
gate system
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Expired
Application number
EP80400729A
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English (en)
French (fr)
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EP0021880A1 (de
Inventor
Jean Aubert
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Individual
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Individual
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Publication date
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Priority to AT80400729T priority Critical patent/ATE6083T1/de
Publication of EP0021880A1 publication Critical patent/EP0021880A1/de
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Publication of EP0021880B1 publication Critical patent/EP0021880B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20—Movable barrages; Lock or dry-dock gates
    • E02B7/40—Swinging or turning gates
    • E02B7/44—Hinged-leaf gates

Definitions

  • the present invention relates to a closure system for a hydraulic dam, mounted on a raft or the body of the dam, comprising at least one valve that can take several predetermined inclined positions, articulated around a horizontal axis linked to the raft or to the body of the dam, each valve being provided with an operating device comprising a jack mounted oscillating about a horizontal axis linked to the slab or to the body of the dam downstream of the valve, a stop movable in rotation about a horizontal axis carried by the valve, parts mutual interlocking carried by the stop and the free end of the cylinder rod, means so that, between two operations of said valve, the cylinder rod retracts entirely in the body of the latter, and removable means for holding the valve in the inclined position chosen when the rod is fully retracted inside the cylinder.
  • This movable opening is arranged between two abutments, which are established, either along the banks at the ends of the raft of a movable dam, or on the crest of a massive dam.
  • the movable closure elements may comprise a valve panel, articulated on the raft or the body of the dam and held in the various above positions by a flying buttress resting on notches fixed to the raft or to the body of the barrage.
  • Movable closure elements are also known, which include a bridge articulated on the raft or the body of the dam and a valve panel which is itself articulated around a horizontal axis linked to the bridge. The flying buttress is then articulated on the easel. In normal maneuvers, the valve panel and the bridge remain glued to each other, but the additional degree of freedom introduced by the interposition of the bridge between the panel and the raft is advantageous in the event of impact.
  • the term "valve” includes not only the valve panel but also the other moving parts attached to it. It applies as well to the valve panel articulated directly on the slab as to the panel articulated on a pivoting easel or to other juxtaposed elements of small dimensions arranged differently.
  • a closure system of this kind is described in FR-A-2 148 836.
  • the cylinder rod is returned inside the cylinder body, where it is immersed in oil.
  • the rod is protected from the action of water, except during the operations of the valve, which are of short duration. This action of water could result in oxidation of the cylinder rod, if the water was acidic, and in erosion, if it contained suspended materials.
  • the system further comprises a device for immobilizing the body of the main cylinder between two maneuvers.
  • This device is slaved to supply the cylinder with oil under high pressure, so that the immobilization is automatically removed at the start of each maneuver.
  • the system further comprises a device for immobilizing the stop member of the valve between two operations.
  • the cylinder body on the one hand, and the valve stop member on the other hand retain the position they occupied at the end of a previous operation.
  • the rod of the jack will therefore be oriented in the direction of the stop which will itself be suitably arranged to receive it. Perhaps this immobilization system would work satisfactorily. It would however be quite expensive and relatively complex, which would reduce reliability.
  • the object of the present invention is to remedy this drawback by providing a closure system with valve and downstream cylinder in which the cylinder rod is returned inside the cylinder body between two operations, and which is simultaneously rendered simpler, more reliable and more economical by eliminating the need for a device to immobilize the jack between two operations.
  • the closure system of the type stated in the introduction is characterized in that the jack is associated with return means to give said jack when its rod is moved away from the stop, an extreme orientation close to the tangent to the trajectory carried out by the center of the stop during the movement of the valve, and in that at least one of the interlocking parts carries around its periphery guide means intended to bear on the other interlocking part to make pass the actuator from its extreme orientation to the orientation allowing straight fitting between the interlocking parts.
  • the fairly complex device for immobilizing the body of the jack between two maneuvers is no longer necessary.
  • the return means of the system according to the invention give the cylinder its extreme orientation. Therefore, at the start of the next maneuver, the rod leaves the body of the jack in the above-mentioned extreme orientation.
  • the guide means automatically bring the end of the rod in coincidence with the stop.
  • the aforementioned guide means comprise a spherical zone of the stop, crossed by said horizontal axis carried by the valve, and a cup fixed on the free end of the cylinder rod to receive this spherical zone .
  • the stop comprises a spherical zone, its orientation is indifferent, and there is no need to provide a device for immobilizing the stop between two maneuvers of the valve.
  • the dimensioning of the cup is such that, in each of said predetermined valve positions, the center of the spherical zone of the stop is located inside the cylinder swept by the cup when the jack is arranged in the aforementioned extreme orientation.
  • the cup can come into engagement with the spherical zone of the stop, regardless of the predetermined position of the valve.
  • the closing system further comprises a reduction valve installed within the visual range of an operator, and synchronized coupling means to give this reduction valve a movement similar to that of the 'one of the valves of the sealing system.
  • This version of the invention allows an operator to assess the position of the plug valve by simply observing the valve in reduction.
  • the sealing system mounted on a raft or a dam body 1, comprises a valve 2 comprising a bridge 3 and a valve panel 4.
  • the bridge 3 comprises two parallel beams 5 joined by two crosspieces 6.
  • the valve panel 2 is articulated to the barrier body 1, by means of a horizontal axis 7 carried by two supports 8a, which depend on a threshold 8 prevailing entirely along the mouth and sealed in the raft or body of the dam.
  • valve panel 4 is articulated at the other end of the side members 5 of the bridge 3, along an axis 9 parallel to the horizontal axis 3.
  • This valve panel 4 is substantially rectangular, and the axis 9 is substantially arranged in a median of said valve panel.
  • the lower horizontal side 10 of the valve panel 4 rests, in the service position, on the threshold 8.
  • a flying buttress 11 is articulated to the valve 2 along the axis 9.
  • the foot of this flying buttress 11 takes support in one of the stop notches 12 of a slide 13.
  • the valve 2 occupies one or the other of the predetermined inclination positions, designated in FIG. 4 by positions P1, P2, P3 .
  • a cylinder 14 is mounted to oscillate relative to the barrier body 1 by means of an oscillation axis 15 downstream of the valve 2.
  • a housing 16 is provided in the barrier 1 for the body 17 of the cylinder 14.
  • Said housing is protected by a cover, not shown in the Figures, against the deposition of solid products which, in the long run, might limit or prohibit the movements of the jack in its housing.
  • Hydraulic control means make it possible to actuate the jack 14, to make its rod come out or come back.
  • the easel 3 of the valve 2 carries a stop 19 to receive the free end of the rod 18 of the jack 14.
  • the stop 19 comprises guide means for ensuring its frank engagement with the end of the rod 18 of the jack 14, when the latter comes into contact with said stop 19.
  • These guide means comprise a spherical zone 20 ( Figure 3).
  • This spherical zone 20 is connected by two frustoconical reinforcements 21 to an axis 22 which crosses it passing through its center.
  • the axis 22 is parallel to the horizontal axis 7 and to the axis 9.
  • Each of the ends of the axis 22 is carried in free rotation by a clamp 23 subject respectively to a spar 5 of the bridge 3.
  • the jack 14 is associated with return means comprising a positioning of the axis of oscillation 15 of the jack 14 such that the center of gravity of the jack 14 is always situated on the side opposite to the free end of the rod 18 relatively to the vertical passing through the axis of oscillation 15, and therefore always remains on the same side of this vertical, even when the rod 18 is fully extended.
  • the jack 14 permanently tends to take an extreme orientation of direction AA ′, in which the base 24 of the body 17 is in bearing against a wall 25 of the housing 16.
  • This extreme orientation of direction AA ′ is close to the orientations that the jack 14 takes in each of the positions P1, P2, P3 of the valve (see FIG. 4).
  • this peculiarity results from the fact that the axis of oscillation 15 of the jack 14 meets the tangent at 45 °, with respect to the horizontal, of a circle C on which the center of the zone moves. spherical 20 of the stop 19 during the movement of the valve 2.
  • the fulcrum of the base 24 of the body 17 of the jack 14 on the wall 25 of the housing 16 is located so that the direction AA ′ of the orientation of the actuator is substantially constituted by the tangent to the circle C.
  • the positions P1, P2, P3 correspond to a predetermined inclination of the valve 2 relative to the vertical respectively equal to approximately 20 °, 35 ° and 45 °.
  • the free end of the rod 18 of the cylinder 14 comprises, like the stop 19, guide means for ensuring a frank engagement of this end of the rod 18 on the spherical area 20, when these members come into mutual contact.
  • These guide means comprise a cup 26 fixed to the end of the rod 18.
  • This cup 26 has a spherical bottom 27, preferably of the same diameter as the spherical zone 20 of the stop 19, extended around its entire periphery by a border.
  • frustoconical 28 substantially tangent to this spherical bottom 27.
  • the radius S of the edge 50 of the cup 26 is chosen so that in each of the positions P1, P2, P3, the center of the spherical zone 20 is located inside the cylinder swept by the cup 26 when the rod 18 moves relative to the body 17 of the cylinder 14 in extreme orientation.
  • the center of the spherical zone 20 is located, in each of the positions P1, P2, P3 of the valve 2, inside a cylinder of radius S and of axis AA '.
  • the radius S is greater than d by a distance substantially equal to half the radius of the spherical zone 20.
  • the depth Q of the cup 26 is less than the difference between the radius of the spherical zone 20 and the radius of the axis 22 of the stop 19.
  • This position is stable because the weight of the valve 2 is sufficient to exert at the stop 19 a moment, relative to the axis of oscillation 15, greater than the moment exerted by the weight of the jack 14 relative to the same axis.
  • the jack 14 under the effect of its weight, is supported on the wall 25 of the housing 16, and is therefore oriented in the direction AA '.
  • the cylinder 14 is controlled in a known manner so that the rod 18 comes out of the body 17. During this movement, the jack 14 retains its extreme orientation, until the cup 26 meets the spherical zone 20 of the stop 19.
  • this radius S is greater than the distance d by approximately half the radius of the spherical zone 20, even in the most unfavorable position P1 for the encounter, not only will this encounter certainly take place, but, moreover, the edge 50 of the cup 26 will meet the spherical zone 20 beyond its polar axis GG 'parallel to the direction AA', at a point F whose associated radius of the spherical zone 20 makes an angle T of at least 30 ° with said polar axis GG '.
  • valve If, starting from position P3, the valve is raised slightly, it is sufficient, thanks to an exhaust device, to let it come back down to bed. Starting from P2, you cannot sleep directly, and you must reach and exceed position P1. Starting from P1, a slight movement upstream followed by a descent brings, thanks to another exhaust, the valve in position P3. Starting from this last position, the valve can be folded down, as mentioned above. The detail of the operations to be carried out, to pass from one position to another, is deduced from the above.
  • the rod 18 is controlled to make it lift the valve 2, as it is explained above. It is thus brought to a position a little closer to the vertical than the position P3. Due to the shape of the slide 13, it is then sufficient to allow the rod 18 of the jack 14 to enter completely, the pressure of the spherical zone 19 on the cup 26 persisting until the end of this maneuver. When this is finished, the valve panel is horizontal, the rod of the jack 14 is at the bottom of the travel, and the spherical zone 20 remains fitted into the cup 26.
  • the previous system could only function if one managed to avoid any failure of either of the two blocking methods provided.
  • the system according to the invention is less expensive and above all it is much more reliable.
  • the easel 3 carries, instead of the axis 22, a fixed axis 22a on which is mounted in rotation a sphere 19a, which could also be bordered by two trunks of cone concentric to the axis 22a.
  • This second arrangement makes it possible to adopt, for the axis 22a, a diameter smaller than that of the ends of the axis 22. Such a reduction in diameter facilitates the rotation of the sphere.
  • the assembly is comparable to a connecting rod, the head of which is constituted by the sphere 19, 19a, and the body by the rod 18 of the jack.
  • This connecting rod has the particularity of being able, when it has no effort to transmit, to divide into two parts, so that the body of the connecting rod will momentarily take shelter from rust, in the cylinder of the cylinder 14.
  • This device allows the operator to follow the details of the complex movements of the foot of the flying buttress in the slide. If an incident, moreover highly improbable, were to occur during a maneuver, the operator could thus easily determine the origin. If, on the contrary, we were content to put at his disposal push buttons controlling the various maneuvers, he could not know in a simple way the origin of a fault.
  • a barrier element of reduced dimensions coupled to the closure system is placed in the maneuvering cabin and it is made so that this element moves while constantly remaining in a position similar to that occupied by the element of the dam whose movement is controlled.
  • Figure 7 shows one of the hydraulic devices that can be used to achieve the synchronism in question.
  • the cylinder 30 of the reduced element is on the contrary in the control station.
  • the electric motor 31 actuates by a toothed belt 34 a large oil pump 32 and, by a second belt 34a, a small pump 33.
  • the flow discharged by the latter is, in the case of the linear ratio 1/5, one hundred and twenty five times lower than that of the big pump 32.
  • the pumps 32, 33 supply distributors 36 and 36a, the control levers of which are coupled by a bar 37.
  • Lines 38, 38a, 39, 39a symbolically represent the entire distribution supplying, via a set of valves electrically controlled by buttons, the upper compartment and the internal compartment of the jack 14 corresponding to any one of those used to operate the valves constituting the opening.
  • the distributors 36, 36a are both in a position such that the oil returns to the reserve 35 via the lines 40 and 40a.
  • the bar 37 for coupling the controls of the distributors 36 and 36a is moved to the right or to the left.
  • the pumped oil goes either in the upper compartment of the two cylinders, or in the lower compartment.
  • the displacements of the two rods of cylinders will therefore be homothetic and it will be the same for the element of the dam and the model placed under the eyes of the mechanic. It is by observing the movements of the foot of the flying buttress in the slide in reduction that the mechanic will move to the right or to the left of the coupling rod 37 to cause the valves to go up or down.
  • This valve control device combines with the sphere-cup system and consolidates its automatic advantages by limiting operator interventions as much as possible. on the raft or barrage.
  • the return means for giving the jack 14 its extreme orientation may include a spring acting between the raft or barrage body 1 on the one hand, and the jack 14 on the other hand.
  • valve does not include an easel 3, the valve panel being directly articulated to the barrier body and carrying in an articulated manner, the stop and the flying buttress.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Tents Or Canopies (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
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Claims (14)

1. Verschlußsystem für eine hydraulische Absperrung, welches auf einem Boden oder dem Körper der Absperrung (1) montiert ist und mindestens eine Klappe (2) enthält, die mehrere vorbestimmte Neigungsstellungen (P1, P2, P3) einnehmen kann und um eine mit dem Boden oder dem Körper der Absperrung (1) verbundene horizontale Achse (7) schwenkbar ist, wobei jede Klappe (2) mit einer Betätigungsvorrichtung versehen ist, die eine stromab der Klappe (2) um eine mit dem Boden oder dem Körper der Absperrung (1) verbundene horizontale Achse (15) schwenkbar montierte Hubvorrichtung (14), einen von der Klappe (2) getragenen, um eine horizontale Achse (22, 22a) drehbaren Anschlag (19), von dem Anschlag (19) und dem freien Ende der Stange (18) der Hubvorrichtung (14) getragene Teile (20, 27) für einen gegenseitigen Eingriff, Mittel, die dazu dienen, daß zwischen zwei Betätigungen der Klappe (2) sich die Stange (18) der Hubvorrichtung (14) vollständig in den Körper (17) letzterer zurückzieht, und lösbare Mittel (11) zum Halten der Klappe (2) in der bei vollständig in das Innere der Hubvorrichtung (14) zurückgezogener Stange (18) gewählten Neigungsstellung (P1, P2, P3) umfaßt, dadurch gekennzeichnet, daß der Hubvorrichtung (14) Rückzugsmittel zugeordnet sind, um der Hubvorrichtung (14), wenn ihre Stange (18) von dem Anschlag (19) entfernt ist, eine extreme Lage (AA') angrenzend an die Tangente der von dem Zentrum des Anschlages (19) bei der Verlagerung der Klappe (2) beschriebenen Bahn zu geben, und daß mindestens einer (27) der Eingriffsteile an seinem Umfang Führungsmittel (28) trägt, die dazu bestimmt sind, sich auf dem anderen Eingriffsteil (20) abzustützen, um die Hubvorrichtung (14) aus ihrer extremen Lage (AA') in die einen vollständigen Eingriff zwischen den Eingriffsteilen (20, 27) gestattende Lage passieren zu lassen.
2. Verschlußsystem nach Anspruch 1, dadurch gekennzeichnet, daß die extreme Lage (AA') der Hubvorrichtung (14) sich an einem Ende ihres angularen Schwenkweges um ihre mit dem Boden oder dem Körper der Absperrung (1) verbundene horizontale Achse (15) befindet.
3. Verschlußsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Führungsmittel eine sphärische Zone (20) des Anschlages (19), durch die die von der Klappe (2) getragene horizontale Achse (22, 22a) hindurchgeht, und eine am freien Ende der Stange (18) der Hubvorrichtung (14) befestigte Lagerschale (26) zur Aufnahme der sphärischen Zone (20) aufweisen.
4. Verschlußsystem nach Anspruch 3, dadurch gekennzeichnet, daß die Lagerschale (26) so bemessen ist, daß in jeder der vorbestimmten Stellungen (P1, P2, P3) der Klappe (2) sich das Zentrum der sphärischen Zone (20) des Anschlages (19) im Innern des bei der Verschiebung der Stange (18) in dem Körper der Hubvorrichtung von dem Rand (50) der Lagerschale (26) abgetasteten Zylinders befindet, sobald die Hubvorrichtung (14) in der genannten extremen Lage (AA') angeordnet ist.
5. Verschlußsystem nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Richtung der Hubvorrichtung (14) in ihrer extremen Lage (AA') den Kreis (C) tangiert, der von dem Zentrum der sphärischen Zone (20) um die Achse (7) der Klappe (2) beschrieben wird, und daß bei einer (P3) der vorherbestimmten Stellungen (P1, P2, P3) der Klappe (2) das Zentrum der sphärischen Zone (20) sich an der Stelle befindet, wo die Richtung der extremen Lage (AA') der Hubvorrichtung (14) den von dem Zentrum der sphärischen Zone (20) beschriebenen Kreis (C) tangiert.
6. Verschlußsystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die genannten Rückzugsmittel den Umstand aufweisen, daß der Schwerpunkt der Hubvorrichtung (14) unabhängig von der Stellung der Stange (18) der Hubvorrichtung (14) auf derselben Seite der durch ihre Schwenkachse (15) hindurchgehenden Vertikalen verbleibt.
7. Verschlußsystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Rückzugsmittel eine Rückzugsfeder enthalten, die zwischen einerseits der Hubvorrichtung und anderseits dem Boden oder dem Körper der Absperrung angeordnet ist.
8. Verschlußsystem nach einem der Ansprüche 1 bis 7, bei dem der Körper (17) der Hubvorrichtung (14) sich in einer Ausnehmung (16) in dem Boden oder dem Körper der Absperrung (1) befindet, dadurch gekennzeichnet, daß in der extremen Lage (AA') der Hubvorrichtung (14) die Rückzugsmittel den Körper der Hubvorrichtung (14) in einer stabilen Lage in Anlage an einer Wand (25) der Ausnehmung (16) halten.
9. Verschlußsystem nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß die Klappe (2) außerdem eine Liegestellung einnehmen kann, in der die Stange (18) der Hubvorrichtung (14) völlig in den Körper (17) der Hubvorrichtung (14) zurückgezogen ist, wenn die sphärische Zone (20) mit der Lagerschale (26) in Berührung steht, und in der die Hubvorrichtung (14) sich unter dem Einfluß des Gewichtes der Klappe (2) außerhalb ihrer extremen Lage (AA') befindet.
10. Verschlußsystem nach einem der Ansprüche 3 bis 9, dadurch gekennzeichnet, daß die Lagerschale (26) einen sphärischen Boden (27) hat, dessen Durchmesser im wesentlichen demjenigen der sphärischen Zone (20) des Anschlages (19) entspricht.
11. Verschlußsystem nach Anspruch 10, dadurch gekennzeichnet, daß der genannte sphärische Boden (27) an seinem Umfang durch einen kegelstumpfförmigen Rand (28) verlängert ist, der den sphärischen Boden (27) im wesentlichen tangiert.
12. Verschlußsystem nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die von der Klappe (2) getragene horizontale Drehachse (22) eine horizontale Stange (22) aufweist, die mit der sphärischen Zone (20) des Anschlages (19) verbunden und drehbar an ihren beiden Enden zwischen zwei Lagern (23) der Klappe (2) angeordnet ist, wobei die sphärische Zone (20) mit der Stange durch zwei kegelstumpfförmige Verstärkungen (21) in Verbindung steht.
13. Verschlußsystem nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die horizontale, den Anschlag (19) tragende Achse (22a) fest ist und durch ein Anschlagstück (19a) hindurchgeht, das sich um die genannte Achse (22a) drehen kann und eine mittlere sphärische Zone besitzt.
14. Verschlußsystem nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß es außerdem eine verkleinerte Klappe hat, die im Sichtbereich einer Bedienungsperson anzubringen ist, und synchronisierte Kuppelmittel vorhanden sind, die dieser verkleinerten Klappe eine Bewegung erteilen, welche derjenigen einer der Klappen (2) des Verschlußsystems ähnlich ist.
EP80400729A 1979-06-12 1980-05-23 Wehrverschluss für hydraulische Sperre Expired EP0021880B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400729T ATE6083T1 (de) 1979-06-12 1980-05-23 Wehrverschluss fuer hydraulische sperre.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7914986 1979-06-12
FR7914986A FR2458633A1 (fr) 1979-06-12 1979-06-12 Systeme de bouchure pour barrage hydraulique

Publications (2)

Publication Number Publication Date
EP0021880A1 EP0021880A1 (de) 1981-01-07
EP0021880B1 true EP0021880B1 (de) 1984-02-01

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Application Number Title Priority Date Filing Date
EP80400729A Expired EP0021880B1 (de) 1979-06-12 1980-05-23 Wehrverschluss für hydraulische Sperre

Country Status (10)

Country Link
US (1) US4352592A (de)
EP (1) EP0021880B1 (de)
AT (1) ATE6083T1 (de)
BR (1) BR8003641A (de)
DE (1) DE3066362D1 (de)
EG (1) EG14760A (de)
FR (1) FR2458633A1 (de)
HU (1) HU184298B (de)
PL (1) PL224923A1 (de)
YU (1) YU156180A (de)

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CN111424619A (zh) * 2020-04-28 2020-07-17 浙江省水电建筑安装有限公司 一种水利水闸液压支柱防倒缓冲装置

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DE3401010A1 (de) * 1984-01-13 1985-07-18 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Wasserschutzdamm
FR2570728B1 (fr) * 1984-09-21 1987-01-09 Aubert J Montage de verin oscillant pour clapets de barrage
US4881848A (en) * 1988-07-26 1989-11-21 Davy Mckee Corporation Method of forming an immersed dam foundation and a dam structure thereon
US5199812A (en) * 1991-09-10 1993-04-06 The United States Of America As Represented By The Secretary Of The Army Hydraulic fixed strut game
US5222834A (en) * 1992-07-02 1993-06-29 The United States Of America As Represented By The U.S. Army Corps Of Engineers Collapsible safety prop for waterway dams
US5310284A (en) * 1992-07-02 1994-05-10 The United States Of America As Represented By The Secretary Of The Army Weak link prop for wicket dam
US5178490A (en) * 1992-07-02 1993-01-12 The United States Of America As Represented By The Secretary Of The Army Wicket dam lifting module
US5433555A (en) * 1994-02-22 1995-07-18 Nancy Brac De La Perriere Wicket dam and lifting jack
SE507170C2 (sv) * 1995-08-11 1998-04-20 Sten Kullberg Förfarande och anordnig vid framställning av en vattenfördämning
FR2743829A1 (fr) * 1996-01-19 1997-07-25 Hydroplus Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection
NL1017109C2 (nl) * 2000-03-18 2001-09-21 Cornelis Elizabeth Rijlaarsdam Waterkering.
US7422392B2 (en) * 2004-10-06 2008-09-09 Obermeyer Henry K Water control structure
KR100823552B1 (ko) 2007-03-14 2008-04-22 광희엔지니어링 주식회사 다단 전도수문 유지보수용 문비 고정장치
KR100848186B1 (ko) 2007-10-05 2008-07-28 김상현 무언체 전도 수문
KR101050967B1 (ko) * 2009-07-17 2011-08-09 한상관 수문에 적용되는 유압실린더를 지지하는 유압의 힘이 밀리지 않도록 수문의 지지장치를 구성하여 완전무결한 지지시스템을 구성하도록 구성되는 수문시스템.
KR101098475B1 (ko) 2011-04-20 2011-12-23 (주)가람수문 유지보수가 용이한 무언체 전도 수문
US20120148346A1 (en) * 2012-03-01 2012-06-14 Shahriar Eftekharzadeh Self-deploying floodwall
CN103114565B (zh) * 2013-02-05 2015-02-18 蒋晓华 适用于斜坡急流河道引流发电的截流引水系统及水电站
CN103243688A (zh) * 2013-05-07 2013-08-14 苏州正欣泰自动化系统有限公司 液压活动坝运行系统
CN103290815B (zh) * 2013-06-09 2015-04-29 王辉 机械式活动挡水坝
KR200478230Y1 (ko) 2013-12-30 2015-09-10 주식회사 수경 가동보 유지보수용 지그장치
US10920387B1 (en) * 2019-10-11 2021-02-16 Luis D. Rivera-Rivera Miter gate actuator
CN114703809B (zh) * 2022-04-23 2024-01-12 蚌埠市江河水利工程建设有限责任公司 一种平面闸门结构

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CN106702973A (zh) * 2016-12-21 2017-05-24 安徽省胜达液压坝科技有限公司 一种叉型杆带机械自锁的液压折叠坝
CN106702973B (zh) * 2016-12-21 2019-03-08 安徽省胜达液压坝科技有限公司 一种叉型杆带机械自锁的液压折叠坝
CN111424619A (zh) * 2020-04-28 2020-07-17 浙江省水电建筑安装有限公司 一种水利水闸液压支柱防倒缓冲装置
CN111424619B (zh) * 2020-04-28 2021-09-07 浙江省水电建筑安装有限公司 一种水利水闸液压支柱防倒缓冲装置

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FR2458633B1 (de) 1982-11-19
US4352592A (en) 1982-10-05
BR8003641A (pt) 1981-01-05
EP0021880A1 (de) 1981-01-07
YU156180A (en) 1983-04-30
DE3066362D1 (en) 1984-03-08
EG14760A (en) 1985-06-30
PL224923A1 (de) 1981-04-24
ATE6083T1 (de) 1984-02-15
HU184298B (en) 1984-07-30
FR2458633A1 (fr) 1981-01-02

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