US3543521A - Closure device applicable to water-slope systems - Google Patents

Closure device applicable to water-slope systems Download PDF

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Publication number
US3543521A
US3543521A US744847A US3543521DA US3543521A US 3543521 A US3543521 A US 3543521A US 744847 A US744847 A US 744847A US 3543521D A US3543521D A US 3543521DA US 3543521 A US3543521 A US 3543521A
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gate
water
channel
closure device
chamber
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Expired - Lifetime
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US744847A
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English (en)
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Jean Aubert
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    • 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
    • E02B7/205—Barrages controlled by the variations of the water level; automatically functioning barrages

Definitions

  • a closure device which is intended to be fitted in the The present invention relates to a closure device which is applicable to water-slope systems for the purpose of effecting the controlled closure of the upstream portion of the inclined-plane channel which constitutes the water slope.
  • Water slopes for river navigation are already known and have been described in the literature, for example in French Pat. No. 1,341,681 as filed on Sept. 21, 1962.
  • These systems comprise a sloping channel which connects an upstream water surface (or so-called head-bay) to a downstream water surface (or so-called tail-bay).
  • the retention barrier can be moved from the downstream water surface to the upstream water surface by means of a pushing machine which is adapted to move along the channel, thus moving the boat which is carried by the water wedge formed between the channel and the movable retention barrier.
  • the boat can thus be readily brought to the summit of the water slope or conversely.
  • the closure device of this type with which the present invention is concerned offers particularly favorable operating characteristics.
  • the closure device which is intended to be fitted in the upstream portion of a water-slope channel is characterized in that it comprises a guard gate which is pivoted on the channel sill about a horizontal axis, the connections which are provided being intended to permit the movement of said gate between a substantially vertical position of closure and a substantially horizontal position of withdrawal, that hydrostatic actauting means are provided for the purpose of carrying out a passive movement of withdrawal of the gate which is assumed to be in the raised position in the case of a predetermined pressure difference between its two faces and that additional means are provided for lifting the gate.
  • the gate-lifting means are of two types: firstly those which are controlled at will by an operator who ensures active elevation of the gate, especially by modification of the buoyancy of the gate, and secondly those which ensure passive elevation of the gate by hydrodynamic action in the event of rapid flow of the water in the channel in the downstream direction.
  • the passive elebation means come into operation only if the active elevation means have failed to operate or in the event of an error of operation.
  • the guard gate is constituted by a caisson, the downstream wall of which is smooth and continuous and the upstream wall of which is provided with openings.
  • that part of the chamber floor which is covered by the gate in the position of withdrawal thereof is fitted with pipes for the injection of compressed air. It is apparent that air which is injected through said pipes penetrates into the caisson which is formed by the gate and thus serves to lift this latter.
  • the means for passive elevation of the gate in the event of rapid downstream flow of the water in the channel comprise a duct which extends from the headbay sill which is located upstream of the position of withdrawal of the gate, the downstream end of said duct being adapted to open substantially opposite to the volume located between the gate which is assumed to be in the withdrawn position and the chamber floor.
  • the pressure of the water within the duct in the event of rapid flow causes the elevation of the gate as a result of hydrodynamic action.
  • FIG. 1 is a sectional elevation view taken along line II of FIG. 2 showing a closure device in accordance with the invention, the guard gate being in the raised or top position;
  • FIG. 2 is a corresponding plan view
  • FIGS. 3 to 5 are views which are similar to FIG. 1 and show the closure device in different cases of operation;
  • FIG. 6 is an enlarged sectional elevation view showing an industrial form of construction of the gate and of its ancillary components
  • FIG. 7 is a fragmentary perspective diagram of the closure device, the gate being shown in the raised or top posltlon;
  • FIG. 8 is a detail view showing the articulation of the gate
  • FIG. 9 is a sectional view along line IXIX of FIG. 8.
  • FIG. 10 is a simplified diagram which is similar to FIG. 1 and relates to a closure device which comprises two gates having different heights;
  • FIG. 11 is a similar diagram corresponding to another case of operation.
  • FIGS. 1 and 2 of the accompanying drawings there is shown at 1 the sill of the channel 2 which corresponds to the upstream portion of a water slope, the sloping portion of which begins at 1a;
  • the channel 2 opens into a chamber 3, the guard gate 4 being mounted within said chamber and pivoted about a horizontal axis AA by means of pins 5 which are fixed on a step 6 of the chamber 3. Said chamber communicates on the opposite side with the head-bay 7,
  • the chamber 3 constitutes an enlarged extension of the channel 2 inasmuch as it has a greater width and a greater depth than this latter.
  • the walls of the chamber 3 which are adjacent to the channel 2 thus constitute a transverse rebate 12 and two lateral rebates 13 which serve as abutments for the gate 4 when this latter is in the raised position.
  • the rebates 12 and 13 are lined with flexible and compressible seals 14 and 15 which are formed, for example, by shaped strips of rubber or the like.
  • the gate 4 has a caisson structure with variable buoyancy.
  • the downstream wall 16 of the gate is constituted by a smooth plate which is formed, for example, by an assembly of plates stiffened by means of vertical ribs 17 and horizontal ribs 18.
  • the summit of the gate 4 constitutes a cover 19 which serves to retain air and the upstream wall of which extends beneath the level N of normal pool elevation of the head-bay 7.
  • the cover 19 is pierced by a succession of small holes 21 for the slow discharge of the air.
  • the upstream wall 23 of the gate 4 is pierced by large openings for the admission of air as will be explained hereinafter.
  • the chamber 3 is hollowed-out so as to form a cradle in which the gate 4 is intended to fit when in the withdrawn position 4a, the floor 24 of the chamber 3 being thus located at a depth which is greater than the sill 1 of the channel 2.
  • non-continuous abutments 25 for receiving the gate 4 when this latter is in the withdrawn position 4a and, on the other hand, airblowing tubes 26, the discharge nozzles 27 of which are located, for example, opposite to that portion of the gate which is located between the rib 18 and the cover 19.
  • the tubes 26 form part of means provided by the invention for ensuring active elevation of the gate 4.
  • the closure device further comprises means which permit of passive elevation of the gate 4 in the event of rapid flow of water from the head-bay 7 towards the channel 2.
  • the means considered comprise a duct 28 which extends from the head-bay 7 towards the summit 19a of the gate 4 which is assumed to be in the withdrawn position 4a.
  • the admission opening 29 of the duct 28 is formed by progressively lowering the sill 8 of the headbay 7 and the discharge opening 31 of said duct terminates beneath the summit 19a.
  • the duct 28 is delimited by a cross-member 32 of masonry having a triangular wing-shaped cross-section with rounded edges.
  • the crossmember 32 extends from one quay 11 to the other at a depth which is greater than that of the floor 1 of the channel 2 but which is less than that of the sill 8 of the head-bay 7.
  • the profiles of the sill 8 and of that portion which is located opposite to the cross-member 32 are such that the cross-section of the duct 28 decreases progressively from the upstream end to the downstream end.
  • the gate 4 being in the raised position thereof as shown in FIG. 1 and the channel 2 being empty, the water at the level N of the head-bay 7 fills the chamber 3 and applies the wall 16 of the gate 4 against the abutments 14 and 15 of the rebates 12 and 13. Said abutments are compressed as a result of the hydrostatic thrust thus exerted on the gate 4, with the result that leak-tight closure of the head-bay 7 is thus obtained with correlative retention of the water surface at the level N.
  • a pushing machine (which 4 is not shown in the drawings) causes a volume of water 33 to progress upstream along the channel 2 in the direction of the arrow F as shown in FIG. 3, either one or a number of boats 34 being carried in said volume 33.
  • the volume 33 is stopped by the wall 16 of the gate 4 so that the water level consequently rises within the channel 2.
  • the gate 4 begins to perform a downward pivotal movement in the direction of the arrow G about the axis AA. The movement thus initiated then continues of its own accord by reason of the weight of the gate.
  • the gate 4 thus comes to rest on the non-continuous abutments 25 of the chamber floor 24 in position 4a.
  • the gate 4 is thus withdrawn before the boat 34 passes into the chamber 3.
  • the motion of the pushing machine does not therefore need to be stopped and need only be slowed down if necessary whilst the screw of the boat 34 may be started up as soon as the gate 4 is in the withdrawn position.
  • a boat 35 is to be transferred downstream in the direction of the arrow H as shown in FIG. 4. If the level N is attained on each side of the gate 4, the pushing machine having remained in the top position, the boat 35 passes with its screw and without any difficulty from the head-bay 7 into the channel 2. In the contrary case in which the gate 4 is located in the top or raised position and the channel 2 does not contain any water at the downstream end, it is only necessary to await the upward motion of the water with the pushing machine, whereupon the gate 4 moves automatically into the withdrawn position at a given moment as has been explained.
  • the level of water in the headbay 7 and the chamber 3 no longer remains at N but is established along the line of slope P, Q, R of FIG. 5.
  • the downstream wall 16 of the gate 4 is straight and the ribs 17 have extensions in the form of lugs 37 which are adapted to engage in yokes 38, said yokes being fixed on an angle-iron member 39 which is located along the edge of the step 6 and which is in turn retained by means of anchor-bolts 40.
  • the articulations are provided by means of not and bolt systems 41.
  • the summit 19 of the gate 4 is straight and the holes 21 are grouped in the vicinity of the corner of said gate which is remote from the wall 16.
  • the space which is just sufiicient for the pivotal motion of the gate 4- is provided between the cover 19 and the cross-member 32.
  • the closure device of the headbay 7 comprises two stepped guard gates 4A, 4B of the type mentioned above but having different heights, the lower gate 4A being located next to the channel 2.
  • the gate 4A can have a height h of 1.50 m.
  • the gate 43 can have a height H of 4.50 m., said two gates being spaced at a distance D of, for example, 105 m.
  • the buoyancy of the gate 4 can be regulated by means of auxiliary floats 41a (shown in FIG. 6), said floats being fixed in the caisson which is formed by the gate.
  • the floats 41a can be adjusted for height. They can also be filled with water to a greater or lesser extent on the principle of ballast. This makes it possible to adjust the value of the difference 1' (-FIG. 3) between the downstream and upstream levels of the water surfaces which initiates the withdrawal of the gate in the direction of the arrow G as and when the water wedge rises again.
  • more than two gates can be disposed in series in an embodiment of the type shown in FIGS. 10 and 11.
  • a water-slope system that includes an inclined water-slope channel that has an upstream portion at its upper end, a closure device fitted in a chamber which opens into said upstream portion of the water-slope channel, said chamber having a sill, said closure device comprising a guard gate of caisson-like structure pivoted on said chamber sill about a horizontal axis above the chamber floor for movement within said chamber between an up-right position of closure preventing the flow of water from said chamber to said upstream portion of the channel and a substantially horizontal position thereby allowing a free passage to water between said upstream portion of the channel and said chamber; the improvement in which said guard gate is freely rotatable between said upright and horizontal positions so that it undergoes a downward pivotal movement under the action of a predetermined pressure difference between its two faces subsequent to elevation of the water level in said upstream portion of the channel above the water level in the downstream portion of the channel, the floor of the chamber being hollowed out to form a cradle in which are disposed abutments for receiving the gate
  • the duct being formed between the chamber floor and a shaped cross member which is disposed above said floor.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Barrages (AREA)
US744847A 1967-08-03 1968-07-15 Closure device applicable to water-slope systems Expired - Lifetime US3543521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR116691 1967-08-03

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US3543521A true US3543521A (en) 1970-12-01

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US744847A Expired - Lifetime US3543521A (en) 1967-08-03 1968-07-15 Closure device applicable to water-slope systems

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US (1) US3543521A (enrdf_load_stackoverflow)
BR (1) BR6801150D0 (enrdf_load_stackoverflow)
DE (1) DE1784219A1 (enrdf_load_stackoverflow)
FR (1) FR1556220A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756032A (en) * 1971-03-10 1973-09-04 Riva Calzoni Spa Sluicegate structure
US3925999A (en) * 1972-09-11 1975-12-16 Maunsell & Partners Pty Limite Dry docks
US3935711A (en) * 1973-06-15 1976-02-03 Mitsubishi Jukogyo Kabushiki Kaisha Flap gate
US4146937A (en) * 1975-05-22 1979-04-03 Baker William H Perimeter skimming gutter with fluid level-responsive weir closure for weir skimming flow control
US4455106A (en) * 1981-10-23 1984-06-19 Johnson William M Flash gate board
US5336018A (en) * 1990-03-22 1994-08-09 Inge Maudal Tidal system and method for cleansing a harbor
US6779947B1 (en) 2003-08-21 2004-08-24 Kevin Buchanan Gate systems and methods for regulating tidal flows
KR101029653B1 (ko) 2008-04-30 2011-04-15 현대중공업 주식회사 발라스트 탱크를 가지는 도크게이트 개폐방법 및 그도크게이트
US20110290343A1 (en) * 2009-02-04 2011-12-01 Nippon Koei Co., Ltd. Opening/closing device
US20110297250A1 (en) * 2009-02-04 2011-12-08 Nippon Koei Co., Ltd. Opening/closing device
US20180258600A1 (en) * 2015-09-25 2018-09-13 Hiroshi Terata Sluice gate
CN110678608A (zh) * 2017-03-30 2020-01-10 丹麦史丁奥神投资有限公司 防洪装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US69070A (en) * 1867-09-24 Improved sluice-gate foe dams oe looks
US194922A (en) * 1877-09-04 Improvement in automatic canal-locks
US196686A (en) * 1877-10-30 Improvement in canal-lock gates
US419287A (en) * 1890-01-14 Lock-gate and dam
US646767A (en) * 1899-11-10 1900-04-03 Thomas Tilley Stoddart Lock-gate.
US1040112A (en) * 1912-03-30 1912-10-01 John Ashford Pneumatic weir-shutter.
US1179520A (en) * 1914-11-17 1916-04-18 Carl E Grunsky Automatic movable dam.
US2074610A (en) * 1935-05-20 1937-03-23 Jermar Frantisek Hydrostatic weir shutter
US2335327A (en) * 1941-11-10 1943-11-30 Charles M Wellons Wicket
US2776541A (en) * 1953-02-24 1957-01-08 Fortes Angelo Automatic balance-beam hinged shutter gate

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US69070A (en) * 1867-09-24 Improved sluice-gate foe dams oe looks
US194922A (en) * 1877-09-04 Improvement in automatic canal-locks
US196686A (en) * 1877-10-30 Improvement in canal-lock gates
US419287A (en) * 1890-01-14 Lock-gate and dam
US646767A (en) * 1899-11-10 1900-04-03 Thomas Tilley Stoddart Lock-gate.
US1040112A (en) * 1912-03-30 1912-10-01 John Ashford Pneumatic weir-shutter.
US1179520A (en) * 1914-11-17 1916-04-18 Carl E Grunsky Automatic movable dam.
US2074610A (en) * 1935-05-20 1937-03-23 Jermar Frantisek Hydrostatic weir shutter
US2335327A (en) * 1941-11-10 1943-11-30 Charles M Wellons Wicket
US2776541A (en) * 1953-02-24 1957-01-08 Fortes Angelo Automatic balance-beam hinged shutter gate

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756032A (en) * 1971-03-10 1973-09-04 Riva Calzoni Spa Sluicegate structure
US3925999A (en) * 1972-09-11 1975-12-16 Maunsell & Partners Pty Limite Dry docks
US3935711A (en) * 1973-06-15 1976-02-03 Mitsubishi Jukogyo Kabushiki Kaisha Flap gate
US4146937A (en) * 1975-05-22 1979-04-03 Baker William H Perimeter skimming gutter with fluid level-responsive weir closure for weir skimming flow control
US4455106A (en) * 1981-10-23 1984-06-19 Johnson William M Flash gate board
US5336018A (en) * 1990-03-22 1994-08-09 Inge Maudal Tidal system and method for cleansing a harbor
US5829917A (en) * 1990-03-22 1998-11-03 Maudal; Inge Tidal system and method for cleansing a harbor
US6779947B1 (en) 2003-08-21 2004-08-24 Kevin Buchanan Gate systems and methods for regulating tidal flows
KR101029653B1 (ko) 2008-04-30 2011-04-15 현대중공업 주식회사 발라스트 탱크를 가지는 도크게이트 개폐방법 및 그도크게이트
US20110290343A1 (en) * 2009-02-04 2011-12-01 Nippon Koei Co., Ltd. Opening/closing device
US20110297250A1 (en) * 2009-02-04 2011-12-08 Nippon Koei Co., Ltd. Opening/closing device
US8590560B2 (en) * 2009-02-04 2013-11-26 Nippon Koei Co., Ltd. Opening/closing device
US8695628B2 (en) * 2009-02-04 2014-04-15 Nippon Koei Co., Ltd. Opening/closing device
US20180258600A1 (en) * 2015-09-25 2018-09-13 Hiroshi Terata Sluice gate
US11384498B2 (en) * 2015-09-25 2022-07-12 Hiroshi Tereta Sluice gate
CN110678608A (zh) * 2017-03-30 2020-01-10 丹麦史丁奥神投资有限公司 防洪装置
US20210102352A1 (en) * 2017-03-30 2021-04-08 Steen Olsen Invest Aps Flood Protection
US11629469B2 (en) * 2017-03-30 2023-04-18 Steen Olsen Invest Aps Flood protection

Also Published As

Publication number Publication date
FR1556220A (enrdf_load_stackoverflow) 1969-02-07
BR6801150D0 (pt) 1973-03-08
DE1784219A1 (de) 1971-07-29

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