WO2011070268A1 - Dispositif de declenchement d'avalanches - Google Patents
Dispositif de declenchement d'avalanches Download PDFInfo
- Publication number
- WO2011070268A1 WO2011070268A1 PCT/FR2010/052575 FR2010052575W WO2011070268A1 WO 2011070268 A1 WO2011070268 A1 WO 2011070268A1 FR 2010052575 W FR2010052575 W FR 2010052575W WO 2011070268 A1 WO2011070268 A1 WO 2011070268A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- beams
- support
- explosion
- gpa
- Prior art date
Links
- 230000001939 inductive effect Effects 0.000 title 1
- 238000004880 explosion Methods 0.000 claims abstract description 19
- 239000002360 explosive Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000008246 gaseous mixture Substances 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000037452 priming Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- ARPUHYJMCVWYCZ-UHFFFAOYSA-N ciprofloxacin hydrochloride hydrate Chemical compound O.Cl.C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 ARPUHYJMCVWYCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
Definitions
- the present invention relates to a device for triggering avalanches and in particular avalanches of snow.
- Such a device is used to preventively trigger avalanches in locations where the accumulation of snow could lead to major avalanche risks endangering property or people, particularly in connection with the existence of transport infrastructure, ski areas or inhabited areas.
- a first technique consits in a deposit of explosive charges by an operator at the precise place where we want to trigger the avalanche.
- This deposit can be made either from a helicopter by launching or from the ground, the load can then be deposited or launched at the appropriate place.
- the charging of the charge, in both cases, is generally obtained by slow wick or electrically.
- Remote triggering techniques use military weapons such as rocket launchers or shells to cause an onsite explosion.
- This type of device is not adapted to certain laws, such as French law, which prohibit the storage of charges initiated.
- the device known under the trade name CATEX uses an explosive conveying cable system passing over one or more avalanche corridors.
- This type of solution if it makes it possible to limit the risks associated with the movement on the scene of the triggering of the avalanche, provides no solution concerning the handling and storage of explosives.
- This device requires, moreover, the expensive installation of a system of pylons supporting the carrier cable, this over distances that can be very large.
- One way to reduce the risks associated with the handling of explosives is the use of explosive gases to generate a shock wave to trigger the avalanche.
- Another type of device is the one known under the name
- EX GAS This type of ispos itif, described in document FR 2 636 729, comprises a closed bottom exploded tube mounted on a concrete support and whose opening is directed towards the snowpack.
- the inclination and the maintenance of the tube are obtained by means of two supporting feet. These two feet, depending on whether it is a static type device or inertia, are either fixed on an anchor block or provided with a counterweight that rests on a concrete platform.
- a gas circuit is used to fill the exploding tube with oxidizing gas and fuel gas which an ignition device, advantageously mounted at the rear of the exploder tube, allows to ignite. The resulting blast of the explosion is then directed, through the opening of the tube, towards the snowpack triggering the avalanche.
- This type of device includes a reserve of sufficient gas for a season and a remote ignition system, which allows it to obtain, among other advantages, a complete autonomy and to offer a perfect safety for the operator.
- the fixed installation of this device also makes it possible to guarantee sufficient and lasting power for the protection of large avalanche corridors.
- the main disadvantage related to this type of device is the installation costs related to the realization of the support fixing the base of the barrel and the anchor block or the concrete platform, depending on the type of device, which supports the bearing feet .
- the invention relates to an avalanche triggering device, comprising a tube of which a closed end is mounted on a support lu itself fixed to the side of a mountain, for example on a concrete block, and whose other open end is turned towards the snowpack, the device further comprising means for filling the tube with an explosive gaseous mixture and a means of initiation triggering the explosion of said mixture, characterized in that it comprises at least two beams which, each fixed by one of its ends to the support, extend along the tube parallel to the latter to provide support, while forming a damping means of the displacement of the tube following the explosion gaseous mixture.
- the beams supporting the exploding tube advantageously remove the need for support feet and therefore all devices, such as anchor blocks, necessary to support reducing the cost of installation of this device.
- the invention also makes it possible, by means of the damping provided by the beams, to reduce the stresses transmitted to the support during each avalanche release, thereby perpetuating the installation of the device.
- the beams are arranged parallel on either side of the tube.
- the beams are joined to each other.
- the fastening produces a better distribution of forces during the displacement caused by the explosion within the exploder tube and thus reduces the forces exerted during the triggering of an avalanche on the attachment means of the exploder tube on the support.
- the beams are solid and of rectangular section with cross-sectional view, the length located vertically and the width horizontally.
- the ratio between the length and the width is of the order of four.
- each beam is made from a material having a Young's modulus in a range of 60 GPa and 250 GPa, and preferably of the order of 150 GPa to 200 GPa and having a resilience preserved for temperatures between +40 ° C and -40 ° C.
- each beam is able to deform in order to accompany and dampen the movement of the exploder tube relative to the support this in the extreme operating temperature conditions of the device.
- each beam is made from high yield strength steel.
- each beam consists of a plurality of elements secured to each other.
- the tube is hinged on the side of its bottom on a horizontal axis perpendicular to the axis of the tube, while its front portion is mounted by means of a movable connection, near the front ends of the beams.
- each beam comprises near its free end a finger which, turned on the side of the other beam, is intended to be engaged in a clevis integral with the tube, whose opening is turned on the side. from the bottom of the tube.
- the finger present on the beams, sliding in the chap sol idaire tube provides freedom of movement along the longitudinal axis of the beams while ensuring their support function of the tube.
- the tube has a section that varies along its length, the section in the area of the opening being smaller than the section in the region of the bottom of the tube.
- This shape offers a function of confining the blast of the explosion thus offering a greater push on the snowpack and thus an optimized avalanche release.
- the section of the tube may be circular or other, for example elliptical.
- Figure 1 is a schematic side view, in situation
- Figure 2 is a perspective view
- Figure 3 is a perspective view of the support of the device
- Figures 4a and 4b show side views of the movable assembly between the exploder tube and the support beams, respectively at rest and at maximum displacement of the tube.
- the device illustrated in FIG. 1 comprises an exploder tube 1 with a closed bottom whose opening 2 is turned towards a snowpack 3.
- This tube 1 comprises a mounting means 4 on a support 5 fixed by means of a concrete block 6
- the device further comprises a means of filling the tube with an explosive gas mixture 8, this mixture serving to carry out the explosion aimed at triggering the avalanche.
- the device also comprises beams 9 connected to the support 5 and supporting the exploder tube 1.
- the device thus formed uses the following operating principle.
- the exploder tube 1 When triggering an avalanche by an operator, the exploder tube 1 is filled with an explosive gaseous mixture composed of a well-defined combination of oxidant gas and fuel, this from the filling means 8.
- a means of initiation not illustrated here, then allows to trigger the explosion of said mixture.
- the resulting blast of the explosion is directed, through the opening 2 of the tube 1, to the snowpack 3 which, because of its instability, is detached from the side of the mountain 7 triggering thus an avalanche.
- the blast of the explosion will transmit a horizontal force to the tube 1. This force causes a displacement of the tube 1, which is advantageously damped by the beams 9 thus limiting the forces transmitted on the support 5.
- the device comprises an exploder tube 1 mounted articulated on a support 5 fixedly mounted on a concrete block 6.
- This assembly is carried out by means of two bearings 14 on the support in which two other bearings, not illustrated here, are inserted at the rear of the tube 1.
- These different bearings are associated by means of pivots, not shown, along a horizontal axis perpendicular to the axis of the tube 1.
- the assembly thus produced allows a rotational movement towards the top of the tube 1 relative to the support 5.
- Two beams 9, made of steel with a high yield strength, are fixed to the support on either side of the tube 1. The fixing of these two beams is consolidated by means of lateral reinforcements 10.
- the two beams 9 each also have at their free end a finger 1 2 which is rotated on the side of the other beam.
- This finger 12 is intended to be engaged in a longitudinal slide 1 3 sol idaire of you be 1, oriented substantially parallel to the tube.
- the assembly thus produced allows a free movement, in the horizontal direction, of the tube 1 relative to the beams 9 while ensuring, by the beams 9, the vertical support.
- the embodiment further has a metal angle 14 facilitating the installation of the tube 1 on the beams 9 by providing a guide fingers 1 2 during their insertion into the parts 13.
- the operation of the device thus formed is as follows.
- the force generated by the blast of the explosion generates a rotational movement towards the top of the tube 1 relative to the support 5.
- This rotational movement of the tube 1 is limited and damped by the beams 9 Indeed, during the rotation of the tube 1, the gripping of the fingers 12 by the pieces 13, causes a displacement towards the other of the fingers 1 2.
- This displacement carries, by the same, the end of the beams 9 12.
- This deformation of beams 9 then generates restoring forces which have the effect of dissipating part of the energy transmitted to the exploder tube 1 during the explosion.
- the invention is not limited to the embodiments described above. It may in particular implement a plurality of beams to ensure optim ization of the damping movements of the exploder tube or use beams of composite material such as, for example, carbon fiber.
- the mobile connection means between the front end of the tube and the beams could be inverted, each beam having, near its free end, a longitudinal slide in which is engaged a finger secured to the tube.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/515,147 US8904939B2 (en) | 2009-12-10 | 2010-11-30 | Avalanche-inducing device |
ES10801614.8T ES2440074T3 (es) | 2009-12-10 | 2010-11-30 | Dispositivo de desencadenamiento de avalanchas |
EP10801614.8A EP2510306B1 (fr) | 2009-12-10 | 2010-11-30 | Dispositif de declenchement d'avalanches |
RU2012127733/03A RU2539051C2 (ru) | 2009-12-10 | 2010-11-30 | Установка, инициирующая сход лавин |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0958828A FR2953922B1 (fr) | 2009-12-10 | 2009-12-10 | Dispositif de declenchement d'avalanches |
FR09/58828 | 2009-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011070268A1 true WO2011070268A1 (fr) | 2011-06-16 |
Family
ID=42288896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/052575 WO2011070268A1 (fr) | 2009-12-10 | 2010-11-30 | Dispositif de declenchement d'avalanches |
Country Status (7)
Country | Link |
---|---|
US (1) | US8904939B2 (fr) |
EP (1) | EP2510306B1 (fr) |
CL (1) | CL2012001530A1 (fr) |
ES (1) | ES2440074T3 (fr) |
FR (1) | FR2953922B1 (fr) |
RU (1) | RU2539051C2 (fr) |
WO (1) | WO2011070268A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2958739B1 (fr) * | 2010-04-09 | 2012-05-11 | Technologie Alpine De Securite Tas | Dispositif de declenchement d'avalanche |
FR3101940B1 (fr) * | 2019-10-10 | 2021-10-15 | Tech Alpine De Securite Tas | Système de déclenchement d’avalanches |
FR3111420B1 (fr) * | 2020-06-15 | 2022-05-20 | Brp | Equipement pour système de déclenchement d’avalanches et système comprenant un tel équipement et une enceinte d’explosion |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008234A1 (fr) * | 1988-03-03 | 1989-09-08 | Jacob Schippers | Procede et dispositif pour declencher une avalanche |
FR2636729A1 (fr) | 1988-09-19 | 1990-03-23 | Schippers Jacob | Procede et dispositif pour declencher une avalanche |
FR2765321A1 (fr) * | 1997-06-26 | 1998-12-31 | Technologie Alpine De Securite | Dispositif de declenchement d'une avalanche |
US20060254449A1 (en) * | 2005-05-16 | 2006-11-16 | Snow Control Holdings, Llc | Apparatus and Method for Avalanche Control |
WO2007096524A1 (fr) | 2006-02-24 | 2007-08-30 | Technologie Alpine De Securite - Tas | Dispositif de declenchement d’avalanche |
WO2009080977A2 (fr) | 2007-12-14 | 2009-07-02 | Technologie Alpine De Securite -Tas | Dispositif de déclenchement d'avalanches |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2765320B1 (fr) * | 1997-06-26 | 1999-09-17 | Jacob Schippers | Dispositif pour provoquer la rupture d'une corniche de neige |
FR2771168B1 (fr) * | 1997-11-17 | 1999-12-10 | Commissariat Energie Atomique | Procede de declenchement artificiel d'une avalanche et dispositif pour la mise en oeuvre de ce procede |
RU2256866C1 (ru) * | 2004-03-30 | 2005-07-20 | Открытое акционерное общество "Завод им. В.А. Дегтярёва" | Оружейная установка |
RU2284389C2 (ru) * | 2004-10-26 | 2006-09-27 | Общество с ограниченной ответственностью Научно-технический центр "Системы пожарной безопасности" | Способ инициирования схода лавины и устройство для его осуществления |
FR2958739B1 (fr) * | 2010-04-09 | 2012-05-11 | Technologie Alpine De Securite Tas | Dispositif de declenchement d'avalanche |
-
2009
- 2009-12-10 FR FR0958828A patent/FR2953922B1/fr not_active Expired - Fee Related
-
2010
- 2010-11-30 WO PCT/FR2010/052575 patent/WO2011070268A1/fr active Application Filing
- 2010-11-30 US US13/515,147 patent/US8904939B2/en active Active
- 2010-11-30 EP EP10801614.8A patent/EP2510306B1/fr active Active
- 2010-11-30 RU RU2012127733/03A patent/RU2539051C2/ru active
- 2010-11-30 ES ES10801614.8T patent/ES2440074T3/es active Active
-
2012
- 2012-06-08 CL CL2012001530A patent/CL2012001530A1/es unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008234A1 (fr) * | 1988-03-03 | 1989-09-08 | Jacob Schippers | Procede et dispositif pour declencher une avalanche |
FR2636729A1 (fr) | 1988-09-19 | 1990-03-23 | Schippers Jacob | Procede et dispositif pour declencher une avalanche |
FR2765321A1 (fr) * | 1997-06-26 | 1998-12-31 | Technologie Alpine De Securite | Dispositif de declenchement d'une avalanche |
US20060254449A1 (en) * | 2005-05-16 | 2006-11-16 | Snow Control Holdings, Llc | Apparatus and Method for Avalanche Control |
WO2007096524A1 (fr) | 2006-02-24 | 2007-08-30 | Technologie Alpine De Securite - Tas | Dispositif de declenchement d’avalanche |
WO2009080977A2 (fr) | 2007-12-14 | 2009-07-02 | Technologie Alpine De Securite -Tas | Dispositif de déclenchement d'avalanches |
Also Published As
Publication number | Publication date |
---|---|
US20120318159A1 (en) | 2012-12-20 |
EP2510306B1 (fr) | 2013-09-25 |
RU2012127733A (ru) | 2014-01-20 |
RU2539051C2 (ru) | 2015-01-10 |
FR2953922B1 (fr) | 2011-12-09 |
EP2510306A1 (fr) | 2012-10-17 |
ES2440074T3 (es) | 2014-01-27 |
CL2012001530A1 (es) | 2013-06-07 |
FR2953922A1 (fr) | 2011-06-17 |
US8904939B2 (en) | 2014-12-09 |
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