EP0874941B1 - Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection - Google Patents
Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection Download PDFInfo
- Publication number
- EP0874941B1 EP0874941B1 EP97900637A EP97900637A EP0874941B1 EP 0874941 B1 EP0874941 B1 EP 0874941B1 EP 97900637 A EP97900637 A EP 97900637A EP 97900637 A EP97900637 A EP 97900637A EP 0874941 B1 EP0874941 B1 EP 0874941B1
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- European Patent Office
- Prior art keywords
- water
- slab
- wall
- solid element
- flashboard according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
-
- 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
- E02B7/16—Fixed weirs; Superstructures or flash-boards therefor
Definitions
- the present invention relates to a rise automatic for hydraulic structure such as threshold in river, weir on a dam or on a dam protection, of the type comprising a structure forming watertight or substantially watertight wall, installed on said hydraulic structure so that it can pass from a first upright position to retain a mass of water at a second lowered position in which said wall lets the water pass through practically without obstruction, and at least one elongated retainer to maintain said wall in its first position against the horizontal thrust exerted by the mass of water, said elongated retaining element being subjected to service, under said push of water, to an effort longitudinal, extending between said wall and a point of reaction balancing said longitudinal force and being connected to the reaction point by a bond which can be removed automatically when water reaches a certain level, so that said wall passes automatically in its second position.
- Automatic hikes like this are good known.
- automatic increases are installed for example on the crest of a threshold arranged across a river to enhance the river water level above the threshold.
- They can also be installed on the threshold of a weir of a dam in order to raise the level of the reservoir (reservoir) of the dam.
- They can be still installed on the threshold of the spillway of a dike bordering a river and intended to protect the regions neighboring against the floods of the river, the spillway being, in the latter case, installed on the dike at a location that is chosen in such a way that, in the event of a flood, the water pours into a reservoir storage or on selected land, safe for other regions around the river.
- the increases automatic can be of the non-spilling type or overflow type, that is to say, in the second case, that they can pass a certain amount of water over their crest as long as the water level upstream of the rise does not exceed a height predetermined.
- the increases must be able to erase automatically if the water level upstream of the rise reaches a predetermined level during a flood, in order to release the mass of water that it retains and thus avoid a flooding of areas around the river or, if applicable if necessary, damage to the dam or dam.
- Figure 1 of the accompanying drawings shows schematically, in side elevation, a rise known automatic of the type defined above, which can be considered to represent the state of the closest technique to the present invention.
- a mockup of this known automatic hike was exhibited on the occasion of the International Congress of Great Dams held in DURBAN, Republic from South Africa in November 1994.
- the rise known automatic shown in Figure 1 is essentially constituted by a plate 1, vertical or oblique, which, at its base, is articulated on the ridge 2 of the threshold or weir 3 in masonry by means of a hinge 4 or other similar element.
- Plate 1 is retained in the upright position shown in solid lines in Figure 1 by at least one tie rod 5, one of which end is connected to plate 1, in the region top of it, and the other end of which is connected to the masonry of the threshold or weir 3 at by means of a fastener 6 which is shown larger scale in Figure 2 of the accompanying drawings
- the fastener 6 has two parts 6a and 6b, which are respectively fixed to the masonry of the threshold or weir 3 and the tie-rod 5, and a dowel 6c, which is threaded in aligned holes drilled in parts 6a and 6b and which couples these two parts to each other,
- the stakes are made up of bars or steel tubes, the cross section of which is chosen from such that the stakes bend or break to a given water load applied to the plates or vertical panels.
- these known increases suffer from the same defect that the known automatic rise described above in reference to Figure 1 of the accompanying drawings (see this regard the publication "Engineering for Dams" page 872, 3rd paragraph and page 874, 8th paragraph).
- the present invention therefore aims to provide a automatic increase of the type defined in the preamble, which works with better accuracy than increases known automatic machines of the same type, with regard to the water level which triggers the rise.
- the increase according to the present invention is characterized in that it further comprises a massive element which is mounted mobile on said structure and coupled to said body of water so as to be in a stable equilibrium position as long as the water remains below of a predetermined level, and to pass in a unstable state and to be moved when water reaches said predetermined level, and in that the connection between said elongated retainer and the reaction point is removed by the displacement of said massive element.
- said massive element can be constituted by a slab installed on said structure so that it can tilt up around a horizontal axis which extends along a first side of the slab and which is perpendicular to the direction of the thrust exerted by the mass of water on the moving wall forming the rise
- the solid element can be mounted so that ability to slide vertically into an open cavity upwards formed in said work.
- the element elongated restraint can be constituted either by a pulling either by a strut. In both cases, the connection between the tie rod or the strut and the reaction point can be deleted in response to element tilting or sliding movement massive.
- the rise 10 is installed at the top of the masonry 11 of a structure hydraulics which is only partially represented in Figure 3 and which can be for example a threshold in river or weir of a dam or dyke protection against floods.
- Rise 10 includes, from known manner, at least one panel 12 which, in service normal, is vertical or slightly inclined to vertical and which is mounted so that it can tilt or rotate around a horizontal, virtual axis or real, which extends parallel to the lower edge of the panel 12, near said lower edge.
- the panel 12 can for example be constituted by a plate metallic, a reinforced or unreinforced concrete plate, a composite structure such as a metal frame in which are embedded or fixed cofferdams, or any other structure forming a tight wall or substantially waterproof.
- Each tie 13 can be constituted for example by a metal rod, cable or chain. One of ends of each tie 13 is connected to the panel 12 in the upper region of it, in 14, while the other end of each tie rod 13 is attached to the masonry 11 by a detachable link 15 which several embodiments will be described later.
- the rise 10 has in addition a massive element 16, produced here in the form a rectangular slab (figure 6) which can be example in concrete, reinforced or not, in metal or in material synthetic, armed or not.
- Slab 16 is laid horizontally on the masonry 11 of the threshold or weir and it can swing up around a horizontal axis A which extends along its side 16a, A this effect, it is provided on masonry 11, just in front of the side 16a of the slab 16, a stop 17 having for example, cross-sectional view, a shape trapezoidal.
- the stop 17 can extend over the entire length of side 16a of slab 16 or be made in the form of separate studs as shown in the figure 6.
- the tilt axis A of slab 16 coincides with the lower edge of its side 16a
- the abutment (s) 17 are made of masonry and then form an integral part masonry 11 of the threshold or weir, or they may consist of metal parts properly anchored to masonry 11.
- the stop (s) 17 can be replaced by hinges.
- the use of one or more stops 17, in particular in masonry offer the advantage that they are less prone to corrosion than metal hinges.
- the slab 16 has, in its upper surface, near its side 16a, a groove 18 which extends parallel to said side 16a and which has a width more greater than the thickness of the lower edge of the panel 12.
- the lower edge of the panel 12 is engaged in the groove 18 and presses against the side 18a of the groove 18 which is closest to side 16a of slab 16, as best seen in Figure 4. So, under certain conditions, as we will see later, the panel 12 can swing down around the upper edge B on the side 18a of the groove 18.
- the panel 12 can be connected to the slab 16 by a hinge 19 as shown in Figure 5, Similarly, at instead of being mounted tilting or pivoting relative to the panel 16, the panel 12 can be mounted tilting or pivoting in relation to masonry 11,
- the groove 18 can be formed in masonry 11 in downstream of the stop 17 as shown in FIG. 5a or the hinge 19 or other equivalent means may be attached to the masonry 11 as shown in FIG. 5b, also downstream of the stop 17.
- a seal is arranged between panel 12 and slab 16 or masonry 11,
- the gasket can be installed in the bottom of the groove 18 or, as shown in the FIGS. 3 to 5, it may consist of a strip 21, of rubber or other elastomeric material, which is attached by a flange 22 to the upstream face of the panel 12 and extends downward to the upper surface of the slab 16 by covering the groove 18 or the hinge 19.
- Another seal ⁇ not shown) may be also provided between slab 16 and masonry 11, in the region of the side 16b of the slab 16 opposite the side 16a.
- the lower end of the tie rod 13 is attached to a fastener 23, which is engaged and retained in a slot 24 arranged between the slab 16 and the masonry 11.
- the slot 24 extends roughly horizontally under the slab 16 from its side 16b towards its side 16a
- the fixing part 23 is here consisting of a metal plate with section elongated rectangular cross section, which when is engaged in the slot 24, has a part which protrudes beyond the side 16b of the slab 16 and at which is attached the lower end of the tie rod 13.
- the two tie rods 13 extend parallel to each other and are all two attached to the plate 23 which has an equal length or slightly shorter than the length of side 16b of slab 16.
- the two tie rods 13 can converge towards each other and be tied into one point of the plate 23, located in the middle of the length on the side 16b of the slab 16. In the latter case, the plate 23 can be significantly longer shorter than that shown in Figure 6.
- each of the two tie rods 13 is energized and the tension T of each tie rod is an increasing function of the thrust P 1 , therefore of the water height h.
- the tension T of each tie rod is transmitted to the plate 23 which, therefore, tends to tilt upwards around its edge C (see also FIG. 10).
- the plate 23 applies to the slab 16 a force F which is directed upwards and whose intensity is an increasing function of the voltage T.
- the intensity of the force F also depends on the cosine of the angle between the direction of the tension T and the vertical direction, as well as of the ratio between the distances l 1 and l 2 of the points of application of the forces T and F, respectively, compared to the edge C (see figure 10).
- the slab 16 tends to tilt upwards around the axis A formed by the lower edge of its side 16a.
- the slab 16 is subjected to its own weight P 2 , to the weight P 3 of the mass of water located above it and to a force P 4 which is the result of the thrust P 1 and of the self-weight of the panel 12. It will be noted that the influence of this last force P 4 on the balance of the slab 16 can be canceled or made negligible if, by construction, the direction of the force P 4 intersects the axis A or pass very close to it. In the case of FIGS. 5a and 5b, the force P 4 is not to be taken into consideration since the panel 12 is supported by the masonry 11 and has no direct action on the slab 16.
- the slab 16 remains in its position equilibrium shown in FIG. 3,
- the tension T of the tie rods 13 increases and, consequently, the force F also increases as does the weight P 3 of the body of water 25 above the slab 16,
- the moment of the force F relative to the axis A increases faster than the antagonistic moment of the weight P 3 relative to the axis A.
- the moment of the force F relative to the axis A reaches and exceeds the sum of the moments of the forces P 2 , P 3 and possibly P 4 by relative to the axis A.
- the slab 16 is unbalanced and begins to tilt upwards around the axis A. Consequently, the slit 24 widens and the water penetrates under the slab 16 and exerts on the underside of the latter, an upwardly directed pressure which quickly tends to balance the weight P 3 of the water on the slab 16, thus promoting the tilting of the latter around the axis A, As a result, the slot 24 widens further (see FIG. 8) and, after the slab 16 has tilted a few degrees upwards, the plate 23 is released (see Figure 9).
- the panel 12 is no longer retained by the tie rods 13 and, under the thrust P 1 of the body of water 25, it rocks around the edge B of the groove 18 (FIG. 4 or 5a) or around the axis of articulation of the hinge 19 (FIG. 5 or 5b), Consequently, the panel 12 collapses on the masonry 11 and releases the mass of water 25.
- the slab 16 is no longer subjected to the action of the force F, it falls back under the effect of its own weight P2 and returns to its position of equilibrium as shown in FIG. 9.
- said panel can be connected by at least one short flexible link 26, such as a cable or chain, to a ring 27 anchored to the masonry 11, as shown in Figures 3 and 5a,
- link or links 26 it it is also possible to provide at least one element 28 forming a hook, which is fixed to the downstream face of the panel 12, near the lower edge thereof, and which cooperates with an additional retaining element 29 fixed rigidly to slab 16, as shown in FIG. 4,
- the triggering of the automatic rise described above does not result from breaking or bending deformation of several retaining elements of which the breaking or bending strength and the breaking or bending behavior are more or less well controlled, but it results from the displacement of slab 16 due to the fact that it is unbalanced when the water reaches a certain level.
- the water level for which occurs the triggering of the rise automatic is therefore much more precise than in the previously known automatic increases (figure 1).
- the water level N for which product the triggering of the automatic rise can be adjusted by modifying the weight of slab 16.
- a ballast 31 can be fixed to the slab 16 (figure 3)
- Level N can be set either by changing the weight value of ballast 31, either by modifying the position of the ballast 31 on the slab 16, in particular its distance from the tilt axis A.
- a conduit 32 (FIGS. 3 or 3a) is provided, a first end 32a of which opens under the slab 16, while its second end 32b opens on the upstream side of the panel 12 at a level corresponding to the level predetermined N.
- the duct 32 can extend partly in the masonry as shown in Figure 3, or it can be fixed vertically to the slab 16 as shown in Figure 3a.
- the slab 16 and the conduit 32 can also be made in one piece by pouring concrete into a suitable formwork. In the case of FIG.
- the aforementioned weight P 2 is the total weight of the slab 16 and of the conduit 32.
- the latter may for example have a circular cross section ( Figures 3 and 6) or an oval cross section or elongated with a hydrodynamic profile such as that shown in phantom in 32c in Figure 3a.
- the upper end 32b of the conduit 32 will open at a slightly lower level, for example a few centimeters, than the predetermined level N in order to obtain a flow of water sufficient to quickly fill the conduit 32 when the water reaches level N.
- a vertical thrust P 5 directed upwards, is applied to the slab 16. This thrust P 5 is established in a relatively short period of time, adds to the force F and quickly causes the tilting of the slab 16 upwards around the axis A.
- the underside of the slab 16 ( Figure 4) or the part of the masonry 11 which is located under the slab 16 ( Figure 3), or both at the same time ( Figure 10) are hollowed out so as to define a chamber 33 into which the end 32a of the conduit 32 opens.
- another conduit or channel 34 is provided in the masonry 11 (FIG. 3) or in the lower surface of the slab 16 (FIG.
- the duct 34 has a passage section more smaller than that of conduit 32 so that the flow in the duct 34 is weaker than in the duct 32 and that the chamber 33 can be quickly filled with water when the water level has actually reached the predetermined level N.
- the automatic raise 10 described above can be a dumping or non-dumping rise depending on whether the height of panel 12 is chosen such that its upper edge is at a lower level or higher higher than the predetermined level N, respectively,
- the panel 12 does not necessarily an essentially flat shape like that shown in Figures 3 and 6, but it can have, seen in horizontal section, a non-linear profile, for example a crenellated profile like that of the panel 12 ' as shown in Figure 7. As is known, this increases the length of the crest of the panel, therefore increasing the flow by. the sheet of water which pours over the crest of the panel for a level given water.
- a certain body of water may be present on the downstream side of the panel 12, with a level below the water level of the upstream side of the panel 12.
- the body of water downstream of the panel 12 can exert on the downstream face thereof a thrust which partially counterbalances the thrust P 1 of the water on the upstream face of the panel 12
- the thrust exerted on the downstream face of the panel 12 has the effect of reducing the value of the tension T of the tie rods 13, therefore also of reducing the value of the force F which tends to tilt the slab 16 upwards.
- this thrust should therefore be taken into account for the calculation of the tension T and the force F.
- FIG. 10 illustrates an alternative embodiment of the detachable link 15.
- each tie 13 is constituted at least in part by a flexible element such that cable or chain, and goes around an element of deflection 35, which is fixed on the slab 16 in the region on its side 16b, so that the part end of tie rod 13 which is attached to the plate 23 extends approximately vertically.
- the deflection element 35 can be for example constituted by a roller or a pulley or again, as shown, by a fixed cylindrical bar carried by supports 36 fixed to the slab 16.
- Figure 11 shows another embodiment of the detachable connection 15.
- the slot 24 arranged between the slab 16 and the masonry 11 has a cross section in the shape of an inverted L, with a first branch which extends horizontally under the slab 16 from its side 16b to its side 16a (not shown in FIG. 11), and a second branch which extends vertically downwards from the internal end of the first branch.
- the second branch or vertical branch of the slot 24 has a greater width than that of the first branch or horizontal branch of said slot.
- the side 16b of the slab 16 is made in the form of a rounded edge.
- each tie rod 13 is constituted, at least in part, by a flexible element such as cable or chain, which passes around the rounded edge 16b of the slab 16.
- Each tie rod 13 then passes through the horizontal branch of the slot 24 and is attached to the fixing piece 23 'which is engaged in the vertical branch of the slot 24.
- the fixing piece 23' may for example be constituted by a cylindrical bar having a diameter larger than the width of the horizontal branch of the slot 24, but smaller than the width of the vertical branch of said slot.
- the detachable link 15 shown in Figure 11 operates as follows. As in the previous embodiments, the tie rods 13, which are under tension, tend to tilt the slab 16 around the axis A (FIG. 3).
- the slab 16 rocks towards at the top, and as soon as the width of the horizontal branch of the slot 24 becomes greater than the diameter of the round section of the bar 23 ′, this bar is extracted from the slot 24 under the effect of the tension of the tie rod 13, so that the panel 12 is no longer retained and can collapse under the pressure P 1 of the water.
- FIGs 12 and 13 show yet another mode of the detachable link 15.
- each tie rod 13 is attached to one of the ends of a 23 "fastener forming a the sink.
- a support point 37 for the 23 "lever is provided on one side of the slab 16 at a distance from the side 16a of this, for example near the side 16b of the slab.
- a notch 38 can be formed in side 16b of slab 16 and the fulcrum 37 can be constituted by a bar, by cylindrical example, horizontal axis, which crosses the notch 38 and the ends of which are embedded in the slab 16.
- the lever 23 “comprises, at the place where he is constact with the bar 37, a footprint 39 having for example a shape corresponding to that of said bar 37.
- a stopper 41 is arranged on the masonry 11 below the bar 37, the stopper 41 can be formed in one piece with masonry 11, or it can consist of a metallic piece properly anchored to the masonry 11,
- a respective 23 "lever can be associated with each of the two tie rods 13.
- the two 23 "levers can be rigidly coupled to each other by a bar transverse 42.
- the notch 38 is formed in the middle of the length of the side 16b of the slab 16, the two tie rods 13 can be attached to a lever single 23 ".
- the tie rod (s) 13 exert on the upper end of the lever (s) 23 "a pull which tends to rotate the said lever (s) 23" in an anticlockwise direction around the point of support constituted by the cylindrical bar 37, and which maintains the lower end of the lever (s) 23 “against the respective stopper (s) 41. It follows that the lever (s) 23" apply to the support point 37, therefore to the slab 16, a force F which tends to tilt it around the axis A ( Figure 3).
- FIGS. 14 and 15 show yet another embodiment of the detachable link 15.
- the lower end of each tie rod 13 (or of the two tie rods 13) is connected to the slab 16, preferably near the side 16b thereof, or to the masonry 11 by a fastener comprising a ring or an eyelet 15a, which is fixed to the tie rod 13, a yoke 15b, which is fixed to the slab 16 as shown in solid lines in FIGS.
- the dowel 15c is provided with a ring 43 to which the one end of a flexible link 44, such as a cable or a chain, the other end of which is attached to a ring 45 anchored to the masonry 11.
- a flexible link 44 such as a cable or a chain
- the link 44 extends entirely first vertically or substantially vertically upwards, then passes around d 'a deflection element 46 fixed to the slab 16 and then extends horizontally or substantially horizontally to the ring 43 in the case where the yoke 15b is fixed to the slab 16.
- the link 44 After having passed around the deflection element 46, extends vertically or substantially vertically downwards, then it passes around another deflection element 47 fixed to the masonry 11, and it then extends horizontally or substantially horizontally to the ring 43 of the pin 15c.
- the deflection element 46 is raised with the slab 16 and exerts a traction on the link 44. It follows that the pin 15c, pulled by the link 44, is extracted from the ring 15a and the yoke 15b and uncouples these two elements. The panel 12 then no longer being retained, it can collapse under the pressure P 1 of the water,
- this solution has the advantage, by compared to that in which the clevis 15b is fixed to slab 16, that automatic rise 10 is completely insensitive to a possible shock caused by a floating body striking the panel 12 or the or tie rods 13, Indeed, with this solution, the tie rods 13 no longer exert any action on the slab 16, In this case, the tilting of the slab 16 around axis A is caused only by push P5 of the water which enters the chamber 33 via the conduit 32, Consequently, slab 16 must have a more weight weak than in the case where the tie rods 13 exert a action on said slab, more precisely, slab 16 must have a lower density than that of water.
- FIG. 16 illustrates an alternative embodiment of the fastener 15 of Figures 14 and 15,
- elements that play the same role as those shown in figures 14 and 15 are designated by the same reference numbers.
- the ring or eyelet 15a which is fixed to the tie rod 13 is detachably coupled to the yoke 15b, which is fixed to the slab 16 or to the masonry 11, by means of a hook 15c which can pivot around an axis 15d of the screed 15b.
- the hook 15c is provided with a ring or eyelet 43 to which the link 44 is attached.
- hook 15c opens automatically under the effect of the traction T exerted by pulling on the ring 15a. So we see that just a very small displacement of the slab 16 to cause the detachment of the ring 15a relative to the hook 15c.
- the massive element whose displacement causes the removal of the detachable link 15 was constituted by a slab 16 which can tilt around an axis horizontal A.
- the present invention is not limited to the use of a massive element in the form of a tilting slab.
- the massive element can be constituted by a 16 'block, for example in concrete or reinforced concrete, which is mounted so that it can slide vertically in a cavity 49 open towards the high formed in masonry 11.
- Vertical walls of the cavity 49 can be lined with a coating 51 having a low coefficient of friction with the material constituting the block 16 '.
- This 16 'block can have, in one of its sides, a notch 24 'which, in normal service, is at least partially closed by one of the vertical walls of the cavity 49 when the block 16 'is in its stable state resting on the bottom of the cavity 49.
- the lower end of the tie rod 13 or of each of the two tie rods 13 is attached to a piece 23 ’retaining device captive in the notch 24 ′.
- the fastening piece 23 ' can be constituted by a metal bar, preferably cylindrical.
- the bar 23 ' In service, under the effect of the tension T of the tie rod 13, the bar 23 'is subjected to a force which can be broken down into a horizontal component T H and a vertical component T v .
- the horizontal component T H is absorbed by the masonry 11 or by a metallic reinforcing piece 52 suitably anchored in the masonry 11,
- the vertical component Tv acts on the block 16 'and tends to lift it,
- the weight P 2 of the block 16' is chosen in such a way that the vertical component Tv, the value of which increases when the level of the body of water upstream of the panel 12 increases, reaches and exceeds the sum of the weight P 2 and the weight of the water column at above the block 16 'when the water reaches the predetermined level N.
- a retaining element 53 having a Z-shaped profile can be fixed to the masonry 11 to limit the movement of the block 16 'upwards.
- such a retaining element 53 is not essential. In fact, as soon as the bar 23 'is released, it no longer applies any vertical force to the block 16' which then falls under the effect of its own weight P 2 on the bottom of the cavity 49.
- a chamber 33 communicating with a conduit 32 similar to the conduit 32 of Figure 3 can be arranged under the block 16 'between it and the bottom of the cavity 49.
- the chamber 33 can be formed either by hollowing out the lower surface of the block 16 ′, or by hollowing out the bottom of the cavity 49, or both.
- detachable link 15 which is formed here by the fixing piece 23 'and by the notch 24', can be replaced by a link of the same type as those which have been described above with reference to FIGS. 10 to 16.
- the elongated element which retains the panel 12 against the thrust P 1 of the body of water which is located upstream of this panel 12, is here constituted by at least one forestay or leg of rigid force 13 '.
- the forestay 13 ' has a first support point, at 14, on the downstream face of the panel 12 and a second support point, at 15', on the masonry 11.
- the support point 14 may for example be constituted by a joint, while the fulcrum 15 'is constituted by a simple stop 54 formed integrally with the masonry 11 or constituted by a metal piece suitably fixed to the masonry 11.
- the joint 14 could be in place of the stop 54 and the stop 54 in place of the articulation 14,
- the fulcrum 15 'formed by the stop 54 here constitutes the aforementioned detachable connection.
- the massive element whose displacement causes the triggering of the rise when the water level upstream of the panel 12 reaches the predetermined level N can for example be constituted by a block 16 'similar to that described with reference to Figure 17, but devoid of a notch 24',
- the block 16 ′ is moved only by the pressure P 5 of the water which enters the chamber 33 via the conduit 32 when the water level reaches the predetermined level N.
- a similar retaining element in element 53 of FIG. 17 may be necessary to limit the displacement of the block 16 'upwards
- the upper end of the tie rod 13 is connected indirectly to panel 12 by a first arm 55 of a pair of articulated arms 55 and 56.
- the second arm 56 of said pair of arms is supported directly or indirectly on masonry 11 in 57.
- the solid element 16 is consisting of a slab similar to that shown in Figure 3 and the second arm 56 is supported on a stop 58 formed on the slab 16 near its side 16a.
- the stop 58 could be formed on the masonry 11.
- the first arm 55 is articulated, at 14, on the downstream face of the panel 12.
- a stop 17 for the slab 16 is provided on the masonry 11.
- the lower end of the tie rod 13 is connected to the masonry 11 by a detachable link 15 similar to that described in connection with Figure 3.
- the detachable link 15 shown in the figure 19 could be replaced by any one connections shown in Figures 10 to 17. From even, slab 16 can be replaced by a block sliding 16 'like that of Figure 17.
- the panel 12, the tie rod 13 and the detachable link 15 constitute a mechanical coupling system between the slab 16 or the block 16 ′ and the body of water 25, while the conduit 32 constitutes a hydraulic coupling system between the slab 16 or the block 16 'and the body of water 25.
- the detachable connection 15 or 15' is removed in response to the movement of the slab 16 or of the block 16 'either under the effect of the mechanical coupling system alone, either under the effect of the hydraulic coupling system alone or even under the effect of the two coupling systems at the same time according to the embodiments described.
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Description
Claims (28)
- Hausse automatique pour ouvrage hydraulique tel que seuil en rivière, déversoir sur un barrage ou sur une digue de protection, comprenant une structure formant paroi (12) étanche ou sensiblement étanche à l'eau, installée sur ledit ouvrage hydraulique (11) de façon à pouvoir passer d'une première position dressée pour retenir une masse d'eau à une seconde position abaissée dans laquelle ladite paroi (12) laisse passer l'eau pratiquement sans obstruction, et au moins un élément allongé de retenue (13;13') pour maintenir ladite paroi dans sa première position contre la poussée horizontale (P1) exercée par la masse d'eau (25), ledit élément allongé de retenue (13;13') étant soumis en service, sous ladite poussée de l'eau, à un effort longitudinal (T), s'étendant entre ladite paroi (12) et un point de réaction équilibrant ledit effort longitudinal et étant relié au point de réaction par une liaison (15) qui peut être supprimée automatiquement quand l'eau atteint un certain niveau, de telle sorte que ladite paroi (12) passe automatiquement dans sa seconde position, caractérisée en ce qu'elle comprend en outre un élément massif (16;16') qui est monté mobile sur ledit ouvrage (11) et couplé à ladite masse d'eau de façon à être dans une position d'équilibre stable tant que l'eau reste au-dessous d'un niveau prédéterminé (N), et à passer dans un état instable et à être déplacé quand l'eau atteint ledit niveau prédéterminé, ladite liaison (15) étant supprimée par le déplacement dudit élément massif.
- Hausse selon la revendication 1, caractérisée en ce que ledit élément massif est constitué par une dalle (16) installée sur ledit ouvrage (11) de façon à pouvoir basculer vers le haut autour d'un axe horizontal (A) qui s'étend le long d'un premier côté (16a) de la dalle (16) et qui est perpendiculaire à la direction de la poussée (P1) exercée par la masse d'eau (25) sur ladite paroi (12).
- Hausse selon la revendication 1, caractérisée en ce que l'élément massif (16') est monté de façon à pouvoir glisser verticalement dans une cavité (49) ouverte vers le haut formée dans ledit ouvrage (11).
- Hausse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que ledit élément allongé de retenue est constitué par un tirant (13) dont une première extrémité est reliée (en 14) à ladite paroi (12), dans la région supérieure de celle-ci, et dont une seconde extrémité est attachée à une pièce de fixation (23;23';23") qui est engagée et retenue dans un espace (24;24') aménagé entre ledit élément massif (16;16') et ledit ouvrage (11) de telle sorte que, lorsque le tirant (13) est sous tension par suite de ladite poussée (P1) de l'eau, l'élément massif (16;16') est soumis à une force (F;Tv) dont la valeur croít en fonction du niveau de l'eau et qui est orientée dans un sens tel qu'elle tend à soulever ledit élément massif (16;16'), et que, lorsoue l'eau atteint ledit niveau prédéterminé (N), provoquant un soulèvement de l'élément massif, ledit espace (24;24') s'agrandit et libère la pièce de fixation (23;23';23").
- Hausse selon les revendications 2 et 4, caractérisée en ce que ledit espace est constitué par une fente (24) qui s'étend en gros horizontalement sous la dalle (16) depuis un second côté (16b) de celle-ci opposé à son premier côté (16a) vers ledit premier côté de la dalle, et en ce que ladite pièce de fixation est constituée par une plaquette (23) à section transversale rectangulaire allongée, qui, lorsqu'elle est engagée dans ladite fente (24), comporte une partie qui fait saillie au delà du second côté (16b) de la dalle (16) et à laquelle est attachée la seconde extrémité du tirant (13).
- Hausse selon la revendication 5, caractérisée en ce que ledit tirant (13) est constitué au moins en partie par un élément souple, tel que câble ou chaíne, et passe autour d'un élément de déviation (35) fixé sur ladite dalle (16) dans la région du second côté (16b) de celle-ci, de telle sorte que la partie terminale dudit tirant (13) qui est attachée à la plaquette (23) s'étend à peu près verticalement.
- Hausse selon les revendications 2 et 4, caractérisée en ce que ledit espace est une fente (24) à à section transversale en forme de L renversé, dont une première branche s'étend horizontalement sous ladite dalle (16) depuis un second côté (16b) de celle-ci opposé à son premier côté (16a) en direction dudit premier côté, et dont une seconde branche s'étend verticalement vers le bas à partir de l'extrémité interne de la première branche et a une largeur plus grande que celle de la première branche, en ce que, sur son second côté (16b), ladite dalle (16) possède un bord arrondi et en ce que ledit tirant (13) est constitué au moins en partie par un élément souple, tel que câble ou chaíne, qui passe autour du bord arrondi de ladite dalle (16), puis dans la première branche de ladite fente (24) et est attaché à ladite pièce de fixation (23') qui est engagée dans la seconde branche de ladite fente (24),
- Hausse selon la revendication 7, caractérisée en ce que ladite pièce de fixation (23') a une section ronde d'un diamètre plus grand que la largeur de la première branche de ladite fente (24) et plus petit que la largeur de la seconde branche de ladite fente,
- Hausse selon la revendication 2, caractérisée en ce que ledit élément allongé de retenue est constitué par un tirant (13) dont une extrémité reliée (en 14) à ladite paroi (12), dans la région supérieure de celle-ci, et dont l'autre extrémité est attachée à une première extrémité d'une pièce de fixation formant un levier (23"), en ce qu'un point d'appui (37) pour le levier (23") est prévu sur un côté (16b) de ladite dalle (16) à distance du premier côté (16a) de celle-ci et en ce qu'un butoir (41) pour une seconde extrémité du levier (23") est aménagé sur ledit ouvrage (11) au dessous dudit point d'appui (37) de telle sorte que, lorsque le tirant (13) est sous tension par suite de la poussée (P1) exercée par l'eau sur ladite paroi (12), la première extrémité du levier (23") est soumise à une force (T) dont la valeur croít en fonction du niveau de l'eau et qui tend à faire pivoter le levier (23") autour dudit point d'appui (37) et maintient la seconde extrémité du levier (23") contre ledit butoir (41), ladite force (T) étant convertie par le levier (23") en une force (F) qui est appliquée à la dalle (16) et qui tend à faire basculer celle-ci vers le haut autour dudit axe horizontal (A) de sorte que, lorsque l'eau atteint ledit niveau prédéterminé (N) et provoque un basculement de la dalle (16) de quelques degrés vers le haut, la seconde extrémité du levier (23") s'échappe du butoir (41) en glissant sur celui-ci et la pièce de fixation formant le levier (23") est libérée.
- Hausse selon les revendications 3 et 4, caractérisée en ce que ledit espace est constitué par une encoche (24') formée dans un côté de l'élément massif (16'), ladite encoche (24') étant au moins partiellement fermée par une paroi verticale de ladite cavité (49) quand l'élément massif (16') est dans sa position stable en appui sur le fond de la cavité (49), et étant dégagée et ouverte quand l'élément massif (16') est soulevé,
- Hausse selon l'une quelconque des revendications 4 à 10, caractérisée en ce qu'il est prévu au moins deux tirants (13) qui sont reliés d'une part à ladite paroi (12) en des points (14) espacés horizontalement et d'autre part à ladite pièce de fixation (23; 23'; 23").
- Hausse selon la revendication 11, caractérisée en ce que la pièce de fixation (23;23';23") est unique pour les deux tirants (13).
- Hausse selon les revendications 9 et 11, caractérisée en ce que chaque tirant (13) est attaché à une pièce respective de fixation formant un levier (23") et en ce que les deux leviers (23") sont couplés rigidement entre eux par une barre transversale (42).
- Hausse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que ledit élément allongé de retenue est constitué par un tirant (13) dont une première extrémité est reliée (en 14) à ladite paroi (12), dans la région supérieure de celle-ci, et dont une seconde extrémité est reliée à l'élément massif (16; 16') par une attache (15), de telle sorte que, lorsque ledit tirant (13) est sous tension par suite de ladite poussée (P1) de l'eau, l'élément massif (16; 16') est soumis à une force dirigée vers le haut dont la valeur croít en fonction du niveau de l'eau et qui tend à soulever ledit élément massif (16; 16'), en ce que ladite attache (15) comprend des première et seconde parties (15a, 15b) qui sont reliées respectivement au tirant (13) et à l'élément massif (16; 16'), et une troisième partie (15c) qui est mobile et accouple de façon détachable les première et seconde parties de l'attache (15), et en ce qu'un lien (44) relie la troisième partie (15c) de l'attache à un point fixe (45) de l'ouvrage (11) de sorte que, lorsque l'eau atteint ledit niveau prédéterminé (N) et que l'élément massif (16;16') est soulevé avec les première et seconde parties (15a,15b) de l'attache (15), la troisième partie (15c) de l'attache est retenue par ledit lien (44) et désaccouple les première et seconde parties de l'attache.
- Hausse selon la revendication 2, caractérisée en ce que la dalle (16) présente, dans sa surface supérieure, une rainure (18) qui s'étend au moins en partie le long du premier côté (16a) de la dalle (16) et qui a une largeur plus grande que l'épaisseur du bord inférieur de ladite paroi (12) qui est engagé dans ladite rainure (18), de telle sorte que ladite paroi (12) puisse basculer autour du bord (B) de la rainure (18) le plus proche du premier côté (16a) de la dalle (16).
- Hausse selon la revendication 15, caractérisée en ce que ladite paroi (12) est reliée à un point fixe (27) de l'ouvrage (11) par au moins un court lien souple (26) tel que câble ou chaíne.
- Hausse selon la revendication 15, caractérisée en ce qu'au moins un élément formant crochet (28) est fixé à ladite paroi (12) sur sa face opposée à celle qui retient l'eau, près du bord inférieur de ladite paroi, et coopère avec un élément complémentaire de retenue (29) fixé rigidement à ladite dalle (16).
- Hausse selon la revendication 2, caractérisée en ce que ladite paroi (12) est montée pivotante sur la dalle (16) au moyen d'une charnière (19) ayant un axe d'articulation horizontal et perpendiculaire à la direction de ladite poussée (P1) de l'eau.
- Hausse selon l'une quelconque des revendications 4 à 18, caractérisée en ce que l'élément massif (16;16') se trouve au moins en majeure partie du côté de ladite paroi (12) qui retient l'eau, et en ce que la première extrémité du tirant (13) est reliée directement (en 14) à ladite paroi (12).
- Hausse selon l'une quelconque des revendications 4 à 18, caractérisée en ce que l'élément massif (16;16') se trouve du côté de ladite paroi (12) qui est opposé à celui qui retient l'eau, et en ce que la première extrémité du tirant (13) est reliée indirectement à ladite paroi (12) par un premier bras (55) d'une paire de bras articulés (55,56), le second bras (56) de ladite paire de bras prenant appui (en 57) sur une butée prévue sur ledit ouvrage (11).
- Hausse selon l'une quelconque des revendications 1 à 20, caractérisée en ce qu'il est prévu un premier conduit (32) et dont une première extrémité (32a) débouche sous ledit élément massif (16;16'), tandis que sa seconde extrémité (32b) se trouve du côté de ladite paroi (12) qui retient l'eau, et débouche à un niveau correspondant audit niveau prédéterminé (N), de sorte que, lorsque l'eau atteint ledit niveau prédéterminé (N), ledit premier conduit (32) se remplit d'eau et une poussée verticale (P5) dirigée vers le haut est appliquée à l'élément massif (16; 16').
- Hausse selon la revendication 21, caractérisée en ce que le conduit (32) s'étend en partie dans ledit ouvrage (11).
- Hausse selon la revendication 21, rattachée à la revendication 2, caractérisée en ce que le conduit (32) est fixé à la dalle (16) ou est réalisé d'une seule pièce avec celle-ci.
- Hausse selon la revendication 21, caractérisée en ce que la face inférieure de l'élément massif (16;16') et/ou la partie de l'ouvrage (11) qui se trouve sous l'élément massif est évidée de manière à définir une chambre (33) dans laquelle débouche la première extrémité (32a) du premier conduit (32).
- Hausse selon la revendication 24, caractérisée en ce qu'un second conduit (34) ayant une section de passage plus petite que celle du premier conduit (32) est prévu pour drainer ladite chambre (33).
- Hausse selon la revendication 21 ou 24 rattachée à l'une quelconque des revendications 1 à 18, caractérisée en ce que ledit élément massif (16;16') se trouve du côté de ladite paroi (12) qui est opposé à celui qui retient l'eau, et en ce que ledit élément allongé de retenue est constitué par une jambe de force rigide (13') qui a un premier point d'appui (en 14) sur ladite paroi (12) et un second point d'appui (en 15') sur ledit ouvrage (11) et qui passe juste au dessus dudit élément massif (16; 16') de telle sorte que, lorsque l'élément massif est soulevé, ladite jambe de force (13') est chassée de l'un (15') de ses deux points d'appui (14, 15') et ladite paroi (12) peut passer de sa première à sa seconde position.
- Hausse selon l'une quelconque des revendications 1 à 26, caractérisée en ce que ladite paroi (12) est essentiellement plane,
- Hausse selon l'une quelconque des revendications 1 à 26, caractérisée en ce que ladite paroi (12') a, vue en coupe horizontale, un profil non linéaire.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9600575 | 1996-01-19 | ||
FR9600575A FR2743829A1 (fr) | 1996-01-19 | 1996-01-19 | Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection |
PCT/FR1997/000056 WO1997026412A1 (fr) | 1996-01-19 | 1997-01-14 | Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0874941A1 EP0874941A1 (fr) | 1998-11-04 |
EP0874941B1 true EP0874941B1 (fr) | 2001-07-11 |
Family
ID=9488250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP97900637A Expired - Lifetime EP0874941B1 (fr) | 1996-01-19 | 1997-01-14 | Hausse automatique pour ouvrage hydraulique tel que seuil en riviere, deversoir sur un barrage ou sur une digue de protection |
Country Status (11)
Country | Link |
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US (1) | US6196764B1 (fr) |
EP (1) | EP0874941B1 (fr) |
AT (1) | ATE203073T1 (fr) |
AU (1) | AU713094B2 (fr) |
BR (1) | BR9707021A (fr) |
DE (1) | DE69705602D1 (fr) |
FR (1) | FR2743829A1 (fr) |
MA (1) | MA24067A1 (fr) |
TR (1) | TR199801381T2 (fr) |
WO (1) | WO1997026412A1 (fr) |
ZA (1) | ZA97372B (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2774393B1 (fr) * | 1998-02-05 | 2000-03-24 | Hoechst Marion Roussel Inc | Souches de levure ayant le gene atf2 interrompu et leurs applications |
NL1017109C2 (nl) * | 2000-03-18 | 2001-09-21 | Cornelis Elizabeth Rijlaarsdam | Waterkering. |
NL1015768C1 (nl) * | 2000-07-21 | 2002-01-22 | Ockels Geoprodukten | Waterkering. |
NO314414B1 (no) * | 2001-03-16 | 2003-03-17 | Aquafence As | En flombarriereseksjon og en flombarriere |
US6663318B2 (en) * | 2001-08-03 | 2003-12-16 | Trojan Technologies, Inc. | Fluid level control system |
US6719491B2 (en) * | 2001-08-03 | 2004-04-13 | Trojan Technologies Inc. | Fluid level control system |
GB0127216D0 (en) * | 2001-11-13 | 2002-01-02 | Univ Edinburgh | Watertight gate mechanism |
AUPR895701A0 (en) * | 2001-11-19 | 2001-12-13 | Sieling, Nicolaas Laurisse | Method of carrying out, and apparatus for use in, flood irrigation |
US7422392B2 (en) * | 2004-10-06 | 2008-09-09 | Obermeyer Henry K | Water control structure |
WO2006062393A2 (fr) * | 2004-12-06 | 2006-06-15 | Cornelis Elizabeth Rijlaarsdam | Mur de retenue |
WO2009050342A1 (fr) * | 2007-10-19 | 2009-04-23 | Hydroplus | Hausse fusible |
FR2959252B1 (fr) * | 2010-04-21 | 2015-07-17 | Hydroplus | Hausse fusible pour ouvrage hydraulique notamment du type barrage. |
US20120148346A1 (en) * | 2012-03-01 | 2012-06-14 | Shahriar Eftekharzadeh | Self-deploying floodwall |
JP5883731B2 (ja) * | 2012-07-02 | 2016-03-15 | 日立造船株式会社 | 海底設置型フラップゲートの係留フック |
WO2014086403A1 (fr) * | 2012-12-05 | 2014-06-12 | Raycap Intellectual Property Ltd. | Grille pour barrages à déversoir libre |
CZ306409B6 (cs) * | 2014-12-18 | 2017-01-11 | ÄŚeskĂ© vysokĂ© uÄŤenĂ technickĂ© v Praze, Fakulta stavebnĂ, Katedra hydrotechniky | Zařízení pro zvýšení kapacity bezpečnostních přelivů na vysokých vodních dílech |
US10711419B2 (en) * | 2015-12-16 | 2020-07-14 | Ali Farhadzadeh | Boardwalk and sidewalk system with dual use as flood control barrier |
WO2017147349A1 (fr) * | 2016-02-23 | 2017-08-31 | Obermeyer Henry K | Porte de régulation d'eau |
FR3062406B1 (fr) * | 2017-01-31 | 2019-04-05 | Hydroplus | Deversoir evacuateur de crues pour barrages et ouvrages similaires comportant un dispositif integre d'aeration de la nappe d'eau aval. |
CN107119640A (zh) * | 2017-06-23 | 2017-09-01 | 无锡启集智能科技有限公司 | 一种活动式挡水坝的挡水坝面板 |
DK179812B1 (en) * | 2017-11-16 | 2019-07-02 | Wintec Holding Aps | Pre-fabricated water control sluice gate system with anti-sedimentation function |
IT201800009417A1 (it) * | 2018-10-12 | 2020-04-12 | Sws Eng Spa | Impianto idrico a soglia di sfioro |
NO345078B1 (no) * | 2018-11-13 | 2020-09-21 | Arnfinn Saervoll | Bakkeforankret fundament for mobilt flomvern, samt fremgangsmåte for å forankre et mobilt flomvern |
JP6814318B1 (ja) * | 2019-11-13 | 2021-01-13 | コリア インスティテュート オブ オーシャン サイエンス テクノロジー | 自己回転式高潮及び波浪防護壁 |
WO2021222467A1 (fr) * | 2020-04-28 | 2021-11-04 | Obermeyer Henry K | Évent d'aération de butée de vanne de garde d'eau |
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DE471299C (de) * | 1925-02-21 | 1929-02-11 | Jean Regis Joya | Vorrichtung zur Regelung der Einstellbarkeit einer Wehrklappe |
CH199124A (de) * | 1938-01-15 | 1938-08-15 | Ernst Haenssler | Mit selbsttätig wirkendem Wehraufsatz ausgerüstetes Wehr. |
DE758858C (de) * | 1940-02-10 | 1953-08-17 | Arno Fischer | Stauklappe mit zwei zusammenfaltbaren Klappenteilen |
FR2033187A1 (fr) * | 1969-02-28 | 1970-12-04 | Petrissans & Cie | |
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SU983178A1 (ru) * | 1981-08-14 | 1982-12-23 | Сибирский Ордена Трудового Красного Знамени Автомобильно-Дорожный Институт Им.В.В.Куйбышева | Затвор гидротехнического сооружени |
US4455106A (en) * | 1981-10-23 | 1984-06-19 | Johnson William M | Flash gate board |
FR2570728B1 (fr) * | 1984-09-21 | 1987-01-09 | Aubert J | Montage de verin oscillant pour clapets de barrage |
FR2656354B1 (fr) * | 1989-12-21 | 1992-03-06 | Gtm Batiment Travaux Publics S | Deversoir evacuateur de crues pour barrages et ouvrages similaires. |
FR2671116B1 (fr) * | 1990-12-28 | 1993-05-07 | Gtm Batimen Travaux Publ | Evacuateur de crues exceptionnelles pour barrage comportant au moins deux dispositifs d'evacuation de crues. |
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 |
US5758989A (en) * | 1995-06-28 | 1998-06-02 | The United States Of America As Represented By The Secretary Of The Army | Linear action hurter |
-
1996
- 1996-01-19 FR FR9600575A patent/FR2743829A1/fr active Pending
-
1997
- 1997-01-14 AU AU13136/97A patent/AU713094B2/en not_active Expired
- 1997-01-14 TR TR1998/01381T patent/TR199801381T2/xx unknown
- 1997-01-14 WO PCT/FR1997/000056 patent/WO1997026412A1/fr active IP Right Grant
- 1997-01-14 US US09/101,902 patent/US6196764B1/en not_active Expired - Lifetime
- 1997-01-14 EP EP97900637A patent/EP0874941B1/fr not_active Expired - Lifetime
- 1997-01-14 BR BR9707021-1A patent/BR9707021A/pt not_active IP Right Cessation
- 1997-01-14 AT AT97900637T patent/ATE203073T1/de active
- 1997-01-14 DE DE69705602T patent/DE69705602D1/de not_active Expired - Lifetime
- 1997-01-16 ZA ZA97372A patent/ZA97372B/xx unknown
- 1997-01-17 MA MA24469A patent/MA24067A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
MA24067A1 (fr) | 1997-10-01 |
WO1997026412A1 (fr) | 1997-07-24 |
AU713094B2 (en) | 1999-11-25 |
AU1313697A (en) | 1997-08-11 |
ZA97372B (en) | 1997-07-18 |
EP0874941A1 (fr) | 1998-11-04 |
BR9707021A (pt) | 1999-12-28 |
DE69705602D1 (de) | 2001-08-16 |
TR199801381T2 (xx) | 1998-10-21 |
ATE203073T1 (de) | 2001-07-15 |
FR2743829A1 (fr) | 1997-07-25 |
US6196764B1 (en) | 2001-03-06 |
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