WO2008074931A1 - Device for protecting a hydro-electric dam against explosive attacks - Google Patents

Device for protecting a hydro-electric dam against explosive attacks Download PDF

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Publication number
WO2008074931A1
WO2008074931A1 PCT/FR2007/001736 FR2007001736W WO2008074931A1 WO 2008074931 A1 WO2008074931 A1 WO 2008074931A1 FR 2007001736 W FR2007001736 W FR 2007001736W WO 2008074931 A1 WO2008074931 A1 WO 2008074931A1
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WO
WIPO (PCT)
Prior art keywords
net
wall
dam
lake
level
Prior art date
Application number
PCT/FR2007/001736
Other languages
French (fr)
Inventor
Jean-Luc Dorel
Original Assignee
Jean-Luc Dorel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jean-Luc Dorel filed Critical Jean-Luc Dorel
Priority to DE602007009570T priority Critical patent/DE602007009570D1/en
Priority to AT07866413T priority patent/ATE483147T1/en
Priority to EP07866413A priority patent/EP2102579B1/en
Publication of WO2008074931A1 publication Critical patent/WO2008074931A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/05—Net barriers for harbour defence
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates

Definitions

  • the present invention relates to a device for protecting an electrohydraulic dam against an attack with explosive.
  • the present invention also relates to an electrohydraulic dam comprising a device of this kind.
  • An explosive attack of an electrohydraulic dam can create considerable damage downstream of the dam, potentially resulting in the death of thousands of people.
  • Most of the current dams in the world are not guarded by armed men, requiring too much personnel.
  • the current roadblocks are particularly easy to access for malicious people wishing to blow them up.
  • a dam has, on its upper part, most of the time a road on which people can move. It is quite simple, for a malicious group, to position itself on this upper part of the barrier wall and to lower, for example with ropes, explosive charges to the level where it wants the explosion to take place to destroy the dam.
  • the present invention aims to overcome the disadvantages of the protection systems of the prior art by proposing a system for protecting a dam which protects this dam against explosive attacks, carried out in particular by placing oneself on the wall and making explosives from this wall, which can prevent catastrophic destruction of the dam without having to require means of surveillance men larger than those used currently.
  • a device for protecting a dam comprising a wall retaining an upstream lake is characterized in that it comprises means forming a net and means for fixing the means of net capable of fixing the means forming a net at dam wall, so that the net means extend substantially perpendicular to the wall.
  • the resistance of the net means is such that it can withstand a force corresponding to a weight of an explosive falling vertically in the net and sufficient to explode the wall, especially if it explodes at a level between 9 and 20 meters below the water level.
  • the device comprises float means intended to float the net means in the lake upstream of the dam, the weight of the nets and the arrangement of the floats and the net being chosen so that the net means float while being immersed so as not to be seen from above.
  • the fastening means of the net means are slidably mounted along the wall, so that the net means can "follow" the rise or fall of the lake water to be always at a level desired by the user, including being just submerged below the water level of the lake.
  • the net means can "follow" the rise or fall of the lake water to be always at a level desired by the user, including being just submerged below the water level of the lake.
  • the net system which preferably is arranged substantially at the water level of the dam lake
  • potential terrorists are prevented from dropping explosives at the end of the barrier wall.
  • the explosives will be "stopped” by the net, so that they will explode only at the level of the water of the lake, and it turns out that at this level the explosive can not only slightly damage the dam and can not destroy it.
  • the present invention also relates to a dam having a wall delimiting in part a dam lake having a water level and a dam protection device according to the invention being mounted on the wall .
  • Figure 1 there is shown in perspective a protection system mounted on a barrier wall, in Figure 2 there is shown a top view of the protection system of Figure 1, and in Figure 3 a front view. of the system of Figure 1 and 2.
  • a dam wall 1 having an upper edge surface 2 on which a road may be, and which is generally accessible to the public.
  • a lake On one side (the side of the figure) of the wall, is a lake (not shown), namely the lake upstream of the dam.
  • This protection device comprises support elements 3 which can support one or more threads, by or keeping them substantially perpendicular to the wall, that is to say horizontal.
  • These supports 3 are here, for example, in the form of cylindrical tubes. They could of course also be in some other form.
  • These support elements 3 have floats 8, which allows them to float in the water.
  • a malicious group such as a terrorist commando
  • a rope having calculated the height of the rope so that once the wire stretched the explosive is at a level below the water between 9 m and 20 m, then the net supported by the support 3 will "intercept" this explosive charge and prevent it from falling to the desired level by the terrorist.
  • he will not be able to blow his load at a distance other than at about the surface of the water.
  • an explosion can not destroy the wall. Only slight damage will be suffered by the wall that will not collapse. As a result, people living downstream of the dam will be protected from a total collapse of the dam. A simple repair of the wall can suffice.
  • surveillance for example by video, may allow security services to arrive in time to intercept it and prevent it from completing its fatal work.
  • the net extends for a distance of several meters to several tens of meters from the wall, all along the wall along the lake. Preferably, the net extends the full length of the wall along the lake.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Control Of Combustion (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Water Turbines (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The invention relates to a dam protection device comprising a wall (1), characterised it comprising net-forming means and means for attaching the net-forming means to the wall of the dam so that the net-forming means extend essentially perpendicular to the wall, the strength of the net-forming means being such that it can withstand a force corresponding to the weight of an explosive falling vertically into the net and sufficient for destroying the wall.

Description

DISPOSITIF DE PROTECTION D'UN BARRAGE ELECTROHYDRAULIOUE CONTRE UNE ATTAQUE A L'EXPLOSIF DEVICE FOR PROTECTING AN ELECTROHYDRAULIC DAM FROM EXPLOSIVE ATTACK
La présente invention se rapporte à un dispositif de protection d'un barrage électrohydraulique contre une attaque à l'explosif. La présente invention se rapporte également à un barrage électrohydraulique comportant un dispositif de ce genre. Une attaque à l'explosif d'un barrage électrohydraulique peut créer des dommages considérables en aval du barrage, pouvant entraîner la mort de milliers de personnes. La plupart des barrages actuels dans le monde ne sont pas surveillés par des hommes en armes, ceci nécessitant trop de personnel. Les barrages actuels sont particulièrement simples d'accès pour des personnes malintentionnées souhaitant les faire exploser. En particulier, un barrage comporte, sur sa partie supérieure, la plupart du temps une route sur laquelle des personnes peuvent se déplacer. Il est assez simple, pour un groupe malintentionné, de se positionner sur cette partie supérieure du mur du barrage et de faire descendre, par exemple avec des filins, des charges explosives jusqu'au niveau où elle souhaite que l'explosion ait lieu pour détruire le barrage.The present invention relates to a device for protecting an electrohydraulic dam against an attack with explosive. The present invention also relates to an electrohydraulic dam comprising a device of this kind. An explosive attack of an electrohydraulic dam can create considerable damage downstream of the dam, potentially resulting in the death of thousands of people. Most of the current dams in the world are not guarded by armed men, requiring too much personnel. The current roadblocks are particularly easy to access for malicious people wishing to blow them up. In particular, a dam has, on its upper part, most of the time a road on which people can move. It is quite simple, for a malicious group, to position itself on this upper part of the barrier wall and to lower, for example with ropes, explosive charges to the level where it wants the explosion to take place to destroy the dam.
La présente invention vise à surmonter les inconvénients des systèmes de protection de 1 ' art antérieur en proposant un système de protection d'un barrage qui protège ce barrage contre des attaques à l'explosif, menées notamment en se plaçant sur le mur et en faisant tomber des explosifs à partir de ce mur, et qui permet d'empêcher une destruction catastrophique du barrage sans pour autant avoir à nécessiter des moyens de surveillance en hommes plus importants que ceux utilisés actuellement .The present invention aims to overcome the disadvantages of the protection systems of the prior art by proposing a system for protecting a dam which protects this dam against explosive attacks, carried out in particular by placing oneself on the wall and making explosives from this wall, which can prevent catastrophic destruction of the dam without having to require means of surveillance men larger than those used currently.
Suivant l'invention, un dispositif de protection d'un barrage comportant un mur retenant un lac an amont est caractérisé en ce qu'il comporte des moyens formant filet et des moyens de fixation des moyens formant filet aptes à fixer les moyens formant filet au mur du barrage, de sorte que les moyens formant filet s'étendent sensiblement perpendiculairement au mur.According to the invention, a device for protecting a dam comprising a wall retaining an upstream lake is characterized in that it comprises means forming a net and means for fixing the means of net capable of fixing the means forming a net at dam wall, so that the net means extend substantially perpendicular to the wall.
De préférence la résistance des moyens formant filet est telle qu'elle peut supporter une force correspondant à un poids d'un explosif tombant verticalement dans le filet et suffisant pour faire exploser le mur, notamment s'il explose à un niveau compris entre 9 et 20 mètres en dessous du niveau de l'eau.Preferably the resistance of the net means is such that it can withstand a force corresponding to a weight of an explosive falling vertically in the net and sufficient to explode the wall, especially if it explodes at a level between 9 and 20 meters below the water level.
De préférence, le dispositif comporte des moyens flotteurs destinés à faire flotter les moyens formant filet dans le lac en amont du barrage, le poids des filets et l'agencement des flotteurs et du filet étant choisis de sorte que les moyens formant filet flottent en étant immergés de façon à ne pas être vus de dessus .Preferably, the device comprises float means intended to float the net means in the lake upstream of the dam, the weight of the nets and the arrangement of the floats and the net being chosen so that the net means float while being immersed so as not to be seen from above.
Suivant un mode de réalisation préféré de l'invention, les moyens de fixation des moyens formant filet sont montés coulissants le long du mur, de sorte que les moyens formant filet peuvent "suivre" la montée ou la descente des eaux du lac pour être toujours à un niveau souhaité par l'utilisateur, notamment être juste immergés sous le niveau de l'eau du lac. Ainsi, suivant l'invention, on peut, de manière simple, protéger le barrage contre une attaque à l'explosif. En effet, pour qu'une attaque à l'explosif ait la possibilité de détruire un barrage, il est nécessaire que l'explosif explose à un niveau en dessous du niveau de l'eau du lac, de préférence à une distance comprise entre 9 m et 20 m du niveau de l'eau, et ce sensiblement à proximité immédiate du mur du barrage. Or, avec le système de filet qui, de préférence d'ailleurs, est disposé sensiblement au niveau de l'eau du lac du barrage, on empêche des terroristes potentiels de laisser tomber, depuis le haut du mur du barrage, des explosifs au bout d'une corde ayant la distance souhaitée pour que ces explosifs soient positionnés au niveau d'une hauteur du mur correspondant à une profondeur par rapport au niveau de l'eau du 1-ac de 9 à 20 m. En effet, les explosifs seront "arrêtés" par le filet, de sorte qu'ils n'exploseront qu'au niveau sensiblement de l'eau du lac, et il s'avère qu'à ce niveau-là l'explosif ne peut endommager que légèrement le barrage et ne peut pas le détruire. Il en résulte un barrage bien protégé vis-à-vis d'une attaque à l'explosif en vue de sa destruction complète, notamment d'une attaque simple qui consiste à se positionner en haut du mur du barrage et à laisser tomber de ce bord supérieur du barrage des charges explosives reliées à un fil ayant une hauteur telle que les charges, une fois le fil tendu, se retrouveraient à une profondeur d'environ 9 à 20 m sous l'eau, à proximité immédiate du mur, position dans laquelle ils auraient un effet dévastateur sur le barrage, et notamment le détruiraient. Ce niveau d'immersion nécessaire est très facile à connaître puisque tout est expliqué en détail dans le livre "les briseurs de barrage" relatant les destructions opérées par les pilotes de la RAF au cours de la deuxième guerre mondiale.According to a preferred embodiment of the invention, the fastening means of the net means are slidably mounted along the wall, so that the net means can "follow" the rise or fall of the lake water to be always at a level desired by the user, including being just submerged below the water level of the lake. Thus, according to the invention, one can, in a simple way, protect the dam against an attack with explosive. Indeed, for an attack to the explosive has the possibility of destroying a dam, it is necessary that the explosive explodes at a level below the water level of the lake, preferably at a distance between 9 m and 20 m from the water level, and substantially in close proximity to the wall of the dam. However, with the net system, which preferably is arranged substantially at the water level of the dam lake, potential terrorists are prevented from dropping explosives at the end of the barrier wall. a rope having the desired distance for these explosives to be positioned at a height of the wall corresponding to a depth from the water level of the 1-ac from 9 to 20 m. Indeed, the explosives will be "stopped" by the net, so that they will explode only at the level of the water of the lake, and it turns out that at this level the explosive can not only slightly damage the dam and can not destroy it. The result is a well protected dam from an explosive attack for its complete destruction, including a simple attack that consists of positioning itself at the top of the dam wall and dropping that upper edge of the dam explosive charges connected to a wire having a height such that the charges, once the wire stretched, would end up at a depth of about 9 to 20 m under water, close to the wall, position in which they would have a devastating effect on the dam, and in particular would destroy it. This level of immersion required is very easy to know since everything is explained in detail in the book "Dambreakers" recounting the destruction made by the RAF pilots during the Second World War.
La présente invention se rapporte également à un barrage ayant un mur délimitant en partie un lac de barrage ayant un niveau d'eau et un dispositif de protection du barrage suivant l'invention étant monté sur le mur .The present invention also relates to a dam having a wall delimiting in part a dam lake having a water level and a dam protection device according to the invention being mounted on the wall .
A titre d'exemple non limitatif de la portée de l'invention, on décrit maintenant un mode de réalisation de l'invention en se reportant aux dessins, dans lesquels :By way of nonlimiting example of the scope of the invention, an embodiment of the invention will now be described with reference to the drawings, in which:
A la Figure 1 , il est représenté en perspective un système de protection monté sur un mur de barrage, à la Figure 2 il est représenté une vue de dessus du système de protection de la Figure 1 , et à la figure 3 une vue de face du système de la figure 1 et 2.In Figure 1, there is shown in perspective a protection system mounted on a barrier wall, in Figure 2 there is shown a top view of the protection system of Figure 1, and in Figure 3 a front view. of the system of Figure 1 and 2.
A la Figure 1 , on peut voir un mur 1 de barrage comportant une surface supérieure 2 de bord sur laquelle une route peut se trouver, et qui est en général accessible au public. Sur un côté (du côté de la figure) du mur, se trouve un lac (non représenté) , à savoir le lac en amont du barrage. Du côté du lac, on peut voir un dispositif de protection du barrage suivant l'invention. Ce dispositif de protection comporte des éléments 3 supports qui peuvent supporter un ou plusieurs filets, en le ou les maintenant sensiblement perpendiculaires au mur, c'est-à-dire horizontaux. Ces supports 3 sont ici, par exemple, en forme de tubes cylindriques. Ils pourraient bien évidemment être également sous une autre forme quelconque. Ces éléments 3 supports comportent des flotteurs 8, ce qui leur permet de flotter dans l'eau. Leur matériau et leur poids sont choisis de sorte que lorsqu'ils supportent un filet, le filet flotte juste en dessous du niveau de l'eau 10. Des glissières verticales 4 sont fixées au mur et un système de liaison relie ces glissières aux supports 3. Ainsi, en fonction du niveau de l'eau, les supports 3, par l'action des flotteurs 8, vont suivre ce niveau de l'eau en coulissant le long des glissières 4 par l'intermédiaire des guides 5. Lorsque le niveau de l'eau du lac va monter ou descendre, le filet supporté par le support 3 va également monter et descendre en suivant le niveau de l'eau du lac et en se trouvant toujours légèrement en dessous de ce niveau de l ' eau du lac . Si un groupe malintentionné, tel qu'un commando terroriste, vient à se positionner sur le bord 2 supérieur du mur 1 et laisse tomber des explosifs disposés à une extrémité d'un filin en ayant calculé la hauteur du filin pour qu'une fois le fil tendu l'explosif se trouve à un niveau en dessous de l'eau compris entre 9 m et 20 m, alors le filet supporté par le support 3 va "intercepter" cette charge explosive et l'empêcher de descendre au niveau souhaité par le terroriste. Ainsi, il ne pourra pas faire exploser sa charge à une distance autre qu'environ au niveau de la surface de l'eau. Or, à ce niveau, une explosion ne peut pas entraîner une destruction du mur. Seuls de légers dommages seront subis par le mur qui ne s'effondrera pas. Il en résultera que les gens habitant en aval du barrage seront protégés d'un effondrement total du barrage. Une simple réparation du mur pourra suffire.In Figure 1, there can be seen a dam wall 1 having an upper edge surface 2 on which a road may be, and which is generally accessible to the public. On one side (the side of the figure) of the wall, is a lake (not shown), namely the lake upstream of the dam. On the side of the lake, we can see a dam protection device according to the invention. This protection device comprises support elements 3 which can support one or more threads, by or keeping them substantially perpendicular to the wall, that is to say horizontal. These supports 3 are here, for example, in the form of cylindrical tubes. They could of course also be in some other form. These support elements 3 have floats 8, which allows them to float in the water. Their material and weight are chosen so that when they support a net, the net floats just below the water level 10. Vertical rails 4 are fixed to the wall and a connection system connects these slides to the supports 3 Thus, depending on the level of the water, the supports 3, by the action of the floats 8, will follow this level of the water by sliding along the slides 4 by means of the guides 5. When the level Lake water will go up or down, the net supported by support 3 will also go up and down following the water level of the lake and still being slightly below this lake water level. If a malicious group, such as a terrorist commando, is positioned on the upper edge of wall 1 and drops explosives at one end of a rope having calculated the height of the rope so that once the wire stretched the explosive is at a level below the water between 9 m and 20 m, then the net supported by the support 3 will "intercept" this explosive charge and prevent it from falling to the desired level by the terrorist. Thus, he will not be able to blow his load at a distance other than at about the surface of the water. At this level, an explosion can not destroy the wall. Only slight damage will be suffered by the wall that will not collapse. As a result, people living downstream of the dam will be protected from a total collapse of the dam. A simple repair of the wall can suffice.
En outre, si le terroriste souhaite tenter de détériorer le filet pour que ses. charges puissent passer, cela lui prendra beaucoup de temps. Or, dans ce cas, une surveillance, par exemple par vidéo, pourra permettre à des services de sécurité d'arriver à temps pour l'intercepter et l'empêcher de terminer son funeste travail .In addition, if the terrorist wants to try to damage the net so that his. loads can pass, it will take a lot of time. However, in this case, surveillance, for example by video, may allow security services to arrive in time to intercept it and prevent it from completing its fatal work.
De préférence, le filet s'étend sur une distance de plusieurs mètres à plusieurs dizaines de mètres du mur, sur toute l'étendue du mur le long du lac. De préférence, le filet s'étend sur toute la longueur du mur le long du lac. Preferably, the net extends for a distance of several meters to several tens of meters from the wall, all along the wall along the lake. Preferably, the net extends the full length of the wall along the lake.

Claims

REVENDICATIONS
1. Dispositif de protection d'un barrage comportant un mur (1) retenant un lac en amont caractérisé en ce qu'il comporte des moyens formant filet et des moyens de fixation des moyens formant filet aptes à fixer les moyens formant filet au mur du barrage, de sorte que les moyens formant filet s'étendent sensiblement perpendiculairement- au mur, la résistance des moyens formant filet étant telle qu'elle peut supporter une force correspondant à un poids d'un explosif tombant verticalement dans le filet.1. Device for protecting a dam comprising a wall (1) retaining a lake upstream characterized in that it comprises thread means and fastening means of the thread means adapted to fix the net means to the wall of the dam, so that the net means extends substantially perpendicular to the wall, the resistance of the net means being such that it can withstand a force corresponding to a weight of an explosive falling vertically in the net.
2. Dispositif suivant la revendication 1, caractérise en ce que le dispositif comporte des moyens flotteurs (8) destinés à faire flotter les moyens formant filet dans le lac en amont du barrage, le poids des filets et l'agencement des flotteurs et du filet étant choisis de sorte que les moyens formant filet flottent en étant immergés de façon à ne pas être vue de dessus.2. Device according to claim 1, characterized in that the device comprises float means (8) for floating the net means in the lake upstream of the dam, the weight of the nets and the arrangement of the floats and the net being chosen so that the net means float by being immersed so as not to be seen from above.
3. Dispositif suivant la revendication 1 ou 2, caractérisé ce que les moyens de fixation des moyens formant- filet sont montés coulissants le long du mur, de sorte que les moyens formant filet peuvent «suivre» la montée ou la descente des eaux du lac pour être toujours à un niveau souhaité par l'utilisateur, notamment être juste immergés sous le niveau de l'eau du lac.3. Device according to claim 1 or 2, characterized in that the fixing means of the net-forming means are slidably mounted along the wall, so that the net means can "follow" the rise or fall of the lake water to always be at a level desired by the user, especially to be just submerged under the water level of the lake.
4. Dispositif suivant la revendication 1, 2 ou 3, caractérisé en ce que la résistance des moyens formant filet est telle qu'elle peut supporter une force correspondant à un poids d'un explosif tombant verticalement dans le filet et suffisant pour faire exploser le mur, notamment s'il explose à un niveau compris entre 9 mètres et 20 mètres du niveau de l'eau du lac.4. Device according to claim 1, 2 or 3, characterized in that the resistance of the net means is such that it can withstand a force corresponding to a weight of an explosive falling vertically in the net and sufficient to explode the wall, especially if it explodes on a level between 9 meters and 20 meters from the water level of the lake.
5. Barrage comportant un mur et un lac en amont, caractérisé en ce qu'il comporte un dispositif suivant l'une des revendications précédentes. 5. Dam comprising a wall and an upstream lake, characterized in that it comprises a device according to one of the preceding claims.
PCT/FR2007/001736 2006-12-20 2007-10-22 Device for protecting a hydro-electric dam against explosive attacks WO2008074931A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602007009570T DE602007009570D1 (en) 2006-12-20 2007-10-22 DEVICE FOR PROTECTING A HYDROELECTRIC DAMM BEFORE EXPLOSION ATTACKS
AT07866413T ATE483147T1 (en) 2006-12-20 2007-10-22 DEVICE FOR PROTECTING A HYDROELECTRIC DAM AGAINST EXPLOSIVE ATTACKS
EP07866413A EP2102579B1 (en) 2006-12-20 2007-10-22 Device for protecting a hydro-electric dam against explosive attacks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0611114A FR2910611B1 (en) 2006-12-20 2006-12-20 DEVICE FOR PROTECTING AN ELECTROHYDRAULIC DAM AGAINST EXPLOSIVE ATTACK.
FR0611114 2006-12-20

Publications (1)

Publication Number Publication Date
WO2008074931A1 true WO2008074931A1 (en) 2008-06-26

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ID=38291246

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Application Number Title Priority Date Filing Date
PCT/FR2007/001736 WO2008074931A1 (en) 2006-12-20 2007-10-22 Device for protecting a hydro-electric dam against explosive attacks

Country Status (5)

Country Link
EP (1) EP2102579B1 (en)
AT (1) ATE483147T1 (en)
DE (1) DE602007009570D1 (en)
FR (1) FR2910611B1 (en)
WO (1) WO2008074931A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006465A1 (en) * 1985-04-24 1986-11-06 Safe Bridge Ab A barrier arrangement and a method for producing the same
US4768417A (en) * 1987-10-13 1988-09-06 Wright James E Detonator net weapon
JPH09273138A (en) * 1996-04-05 1997-10-21 Tokyo Seiko Co Ltd Soil saving dam with suspended protection work
GB2375739A (en) * 2001-05-24 2002-11-27 Mark Barry Metherell Defensive net for protecting ships or harbours from attack
CN1558038A (en) * 2004-01-19 2004-12-29 戎新国 Dam protection and breach closing method using multilayer floating bag, sinking net and cloth in flood fighting
JP2005146619A (en) * 2003-11-14 2005-06-09 Nisshoku Corp Revetment construction method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006465A1 (en) * 1985-04-24 1986-11-06 Safe Bridge Ab A barrier arrangement and a method for producing the same
US4768417A (en) * 1987-10-13 1988-09-06 Wright James E Detonator net weapon
JPH09273138A (en) * 1996-04-05 1997-10-21 Tokyo Seiko Co Ltd Soil saving dam with suspended protection work
GB2375739A (en) * 2001-05-24 2002-11-27 Mark Barry Metherell Defensive net for protecting ships or harbours from attack
JP2005146619A (en) * 2003-11-14 2005-06-09 Nisshoku Corp Revetment construction method
CN1558038A (en) * 2004-01-19 2004-12-29 戎新国 Dam protection and breach closing method using multilayer floating bag, sinking net and cloth in flood fighting

Also Published As

Publication number Publication date
EP2102579A1 (en) 2009-09-23
FR2910611A1 (en) 2008-06-27
EP2102579B1 (en) 2010-09-29
DE602007009570D1 (en) 2010-11-11
FR2910611B1 (en) 2009-03-06
ATE483147T1 (en) 2010-10-15

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