EP2304179B1 - Appareil de forage et de mise en place de boulons d'ancrage comprenant des glissières séparées - Google Patents

Appareil de forage et de mise en place de boulons d'ancrage comprenant des glissières séparées Download PDF

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Publication number
EP2304179B1
EP2304179B1 EP09749485A EP09749485A EP2304179B1 EP 2304179 B1 EP2304179 B1 EP 2304179B1 EP 09749485 A EP09749485 A EP 09749485A EP 09749485 A EP09749485 A EP 09749485A EP 2304179 B1 EP2304179 B1 EP 2304179B1
Authority
EP
European Patent Office
Prior art keywords
carriage
drilling
anchor
bolt setting
bolt
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.)
Not-in-force
Application number
EP09749485A
Other languages
German (de)
English (en)
Other versions
EP2304179A1 (fr
Inventor
Helmut Heisterkamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTA Maschinensysteme GmbH
Original Assignee
GTA Maschinensysteme GmbH
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 GTA Maschinensysteme GmbH filed Critical GTA Maschinensysteme GmbH
Priority to PL09749485T priority Critical patent/PL2304179T3/pl
Publication of EP2304179A1 publication Critical patent/EP2304179A1/fr
Application granted granted Critical
Publication of EP2304179B1 publication Critical patent/EP2304179B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • E21D20/006—Machines for drilling anchor holes and setting anchor bolts having magazines for storing and feeding anchoring-bolts

Definitions

  • the invention relates to a device for setting a rock anchor with a mounted on a Lafettenovic drill mount.
  • Such devices are used in tunnel, mining or civil engineering in the fuse expansion.
  • the anchors take over various functions as a tension element, to improve the bearing effect of the mountains, as part of the attachment of expansion arches or to prevent transverse displacement in the rock.
  • Common forms are anchoring in one or three steps. In the former, the self-drilling anchor filled with adhesive is brought into the rock in just one step. Disadvantage is, in addition to the high price of such Dibohrankers that a beating drilling with this technique is not possible.
  • drill holes are initially made separately. Then the adhesive is pushed manually into the drilled hole; Finally, the anchor is manually placed on the drill rig, after previously the boring bar has been removed.
  • the anchor rod is pushed into the anchor hole by means of a drill feed.
  • the boring bar is simultaneously rotated by means of a boring motor, the previously inserted adhesive is swirled and distributed in the borehole.
  • the manual work is done often and largely in the unsecured area.
  • This technique can be significantly improved by using combined drilling and tying tools, which have both a drilling / striking mechanism for producing the holes and an anchor network for setting the anchors.
  • Such a device is z. B. from the EP 0 470 061 known. There, the drilling / impact mechanism is advanced with a carriage over the carriage and retracted after completion of the holes.
  • the drilling and tethering device according to US 2003/0066665 proved disadvantageous.
  • quasi drilling and anchoring network equal 180 ° offset from each other.
  • the conversion between drilling and anchor setting position is only cumbersome to implement and there are other disadvantages in connection with the dimensioning of the units.
  • the aggregates for anchor nets must be dimensioned according massive, which is problematic in terms of manufacturing and operating costs, but also on the cramped space in which such devices are used.
  • GB-A-2 114 027 which may be considered as the closest prior art, also discloses a device for drilling and setting rock anchors.
  • the present invention has the object to provide a particularly compact device for setting a rock anchor, which manages with a minimum of aggregates.
  • Lafettena has a reduced in their dimensions relative to the drill mount, offset by approximately 90 ° and separately driven anchor grid carriage.
  • the device according to the invention thus has, so to speak, a main and a secondary carriage. While the former is responsible for the drilling function and solidly trained in a proven manner and correspondingly strongly dimensioned Aggregates, such as turning and / or percussion and sledging, builds the anchor mesh mount including aggregates comparatively small and is earmarked exclusively for the anchor set operation.
  • the drilling and tying tool have different drives that can be driven on different tracks at different speeds. Even the type of drive can be different. If necessary, individual units and accessories, such as supply hoses, may be formed separately from each other. All this also means that the pivot angle between the drilling and the anchor setting position can be comparatively small, so that a particularly compact, manoeuvrable and usable under different conditions device is given. Manual work in the danger zone when using an injection anchor or an anchor with integrated adhesive technology can also be omitted.
  • the proposal is to be understood, according to which the device is equipped with a pivoting mechanism, via which the Lafettenarme is adjustable between a drilling and a Ankersetzposition.
  • z. B a transverse to the drilling axis oriented hydraulic cylinder. Over this, the stress of only a minimum of space, the drilling and the anchor mesh carriage between their respective parking and the position in the drilling axis pivoted back and forth.
  • a particular variant of the invention provides that the Lafettenabo is formed in two parts and that the pivot mechanism between an upper part and a lower part of the Lafettenas is provided.
  • First mentioned part includes in particular drilling and Ankersetzlafette, the latter part the connection to a vehicle or the Lafettenangnagna and the fixation to the mountains.
  • the pivoting mechanism is provided, which allows a pivoting of the upper part of the carriage carrier about an axis provided parallel to the drilling axis.
  • a mandrel is arranged at the front end of the lower part of the carriage carrier. This towers the actual device forward in the direction of the working face. The drilling position is approached with the comparatively small mount carriage. About the mandrel ensures that the appropriate pressure can be applied to the working face, so that when drilling and then pivoting for Ankeritati the carriages are fixed to the working face / remains.
  • the lower part of the Lafettenarmes is equipped with a carriage position.
  • a carriage position are in particular a hydraulic cylinder and a corresponding guide for linear displacement of the carriage carrier for easier fixation of the carriage to the working face.
  • the handling of the Lafettenarmes invention can be improved by the upper part of the Lafettenizis is attached by sliding guides on the carriage.
  • the carriage is displaceable by means of a cylinder and thus formed telescopically, whereby longer drill pipe and / or anchor can be introduced via the device according to the invention.
  • a particularly advantageous embodiment of the invention provides that the anchor mesh carriage is laterally flanged to the carriage carrier. Because of the massiveness of such a Lafettenarmes here anyway enough space is available to provide the Ankersetzlafette.
  • the carriages have a double-T or U-shaped profile so that they can be connected together in a suitable manner.
  • the carriage of the Ankersetzlafette is smaller in size than the carriage of the drill carriage.
  • additional space can be gained, which is then available when anchoring the anchor or can be used for a possible anchor magazine.
  • the necessary forces for the anchor forces are much lower than during drilling, such as in connection with the additional impact mechanism, the case. Therefore, space can also be saved here. An effect that increases even more if a space-saving drive for the anchor setting device is selected.
  • the anchor network of the anchor mesh mount is dimensioned smaller than the turning and / or hammer mechanism of the drill mount.
  • the more compact design of the anchor mesh carriage requires a small carriage for moving the anchor network as well as a smaller constructive anchor network as such.
  • the drill mount has a hydraulic cylinder as the drive
  • the anchor grid mount has as its own, separate drive a hydraulic cylinder with cable drive and / or a motor with chain drive.
  • the chain drive is characterized by comparatively low costs.
  • the drill carrier and the anchorage carrier Since the entire carriage carrier has to be swiveled back and forth between the drilling and the anchor setting position, it makes sense for the drill carrier and the anchorage carrier to be equipped with separate guides for the drill pipe or armature so that no unnecessary time is lost during the conversion. A special pivoting hydraulics for the drill pipe guides for swinging the drill pipe can thus be omitted, since the drill pipe remains positioned during the anchor setting in the separate carriage.
  • the anchor set operation usually sufficient for the anchor set operation also, at the front end of the carriage to be positioned guide, while previously for the drilling operation, the provision of a steady rest, which may possibly ride at half speed is appropriate.
  • a further embodiment of the invention provides that the device is equipped with a removable, gripper-like guide device for the anchor rod, which is attached to the pivotable part of the Lafettenitatis / Lafette or the fixed mandrel according to application.
  • a removable, gripper-like guide device for the anchor rod which is attached to the pivotable part of the Lafettenitatis / Lafette or the fixed mandrel according to application.
  • the injection anchor is used as a drill bit with lost drill bit
  • one of the two guides must be hydraulically opened and closed and as a so-called gripper device (holding drill / drill anchor rod) the drilled anchor rod at the end, outside the borehole, fix.
  • the gripper device In order for the drilled armature to remain fixed even when the injection forceps are swiveled in, the gripper device must preferably be fastened to the mandrel of the lower part of the carriage carrier.
  • Gripper and mandrel are preferably provided for both applications with appropriate mounting options, so that
  • the position of the gripper is equal to the carriage end in both cases of use. Since the anchor must not look too far out of the borehole, the position on the gripper is now such that it may not be able to grip the anchor. For this purpose, the anchor rod would have to be retracted approx. 100 mm before being separated with the hammer drill. To avoid this, it makes sense to shorten the thorn.
  • the length of the mandrel is adjustable, preferably, the mandrel is formed in two parts.
  • the front, bolted-on mandrel part includes two different lengths, with the shorter to the working face as needed and the longer in the screwed-on part carrying the gripper, or vice versa. Also, a telescopically trained mandrel is conceivable in this context.
  • a further embodiment of the invention provides that the drill carriage and / or the anchor mesh carriage are composed of a U-shaped profile, e.g. -screwed.
  • the mount builds comparatively compact and can be mounted variably in a kind of modular principle, connections are possible in a suitable manner.
  • a prism guide profile is welded or screwed to the drill carriage and / or the anchor mesh carriage.
  • These prisms can be made of a wear-resistant. Made of metal and serve to guide the carriage or the feed units.
  • the prism guide profiles are equipped with permanently installed tread blocks and at least one profiled sheet fastened to this tread block.
  • These profile sheets are classic wear parts with comparatively low weight, which after appropriate use and wear with comparatively little effort can be exchanged.
  • the profile sheets are angled sheets which can be fixed to the profile block in the region of their angling.
  • the blocks corresponding recesses and the profile sheets webs, with which they can be fixed to the blocks - or vice versa.
  • the invention is characterized in particular by the fact that a device for setting rock anchors is made possible in which the drilling and anchor setting units can be used completely separately from each other without any special conversion effort and intermediate steps. This is associated with a considerable time and weight and space savings.
  • a complete anchoring process in the danger zone can be completed without manual work, such as the insertion of the adhesive cartridge or the insertion of the anchor rods, would have to be made.
  • the device can accomplish a complete drilling / anchoring cycle solely by operating the pivoting mechanism between the drilling and anchor setting positions.
  • Drill and anchor mesh mount have separate drives that can be designed differently in terms of type and speed.
  • Hose guides as well as center rod guides (lunettes) can travel at half speed. Additional mechanisms, such as the telescopic design of the drilling and anchoring power supply, are equally conceivable.
  • the swivel angle is advantageously small at about 45 °, so that there are no restrictions as a result of the conversion between the drilling and the anchor setting position.
  • FIG. 1 shows a device 1 for setting a rock anchor with the relevant for the invention units and components.
  • This is initially the carriage carrier 2, which serves for receiving both the drill mount 3 and the anchor set mount 5.
  • the drill mount 3 is made significantly more massive than the anchor grid mount 5. Both are offset by 90 ° to each other, so that the drill mount 3 in the in FIG. 1 position shown in the drilling axis 14 is located, while the anchor mesh carriage 5 is positioned laterally on the drill carriage 3.
  • the pivot mechanism 7 with the cylinder hidden here is in the retracted position.
  • the drilling carriage 4 of the drill mount 3 now moves in the direction of the front end 15 of the device 1 in the form of a turning and / or impact mechanism, correspondingly high forces can be applied, as are necessary for producing the boreholes.
  • the drill mount 3 is driven over the massive hydraulic cylinder 8, with the correspondingly high forces can be applied.
  • the carriage carrier 2 according to the invention is designed to be telescopic, for which purpose a hydraulic cylinder (not shown here) is located on its underside. At the front end 15 of the device 1, the mandrel 21 can be seen.
  • the reference numeral 45 designates the connection to a base unit, for example a vehicle.
  • the mandrel 21 is positioned so that displacements during pivoting of the carriage carrier 2 are excluded. The drilling position is approached with the carriage only after the mandrel 21 rests with appropriate pressure on the working face. Then, the upper part of the carriage carrier 2 can be pivoted about the axis 46.
  • the cylinder is designated on the underside 16 of the Lafettenarris 2, which forms with the guide 19, the carriage position, at the Rear end 20 of the pivot mechanism 7 is positioned and over which the carriage carrier 2 is adjustable in the linear direction.
  • FIG. 3 In side view shows FIG. 3 the device consisting of lower, fixed part 22 and upper, pivotally mounted part 23 with inserted drill pipe 55. Above all, the function of the carriage position with mandrel 21, hydraulic cylinder 18 and guide 19 is illustrated. At the rear end of the carriage carrier 2 there is a further hydraulic cylinder 56, responsible for the telescoping of the drill mount 3, to increase the drilling length, if necessary.
  • FIG. 4 the relay carrier 2 is shown from front view. Above is the trained with U-shaped profile drill mount 3 with the rotary and / or hammer mechanism 9. In addition, the carriage 4 can be seen.
  • the hydraulic cylinder 8 serves as a drive for moving the drill carriage 3 on the carriage carrier 2.
  • the anchor bolt carriage 5 is flanged to the carriage carrier 2 laterally and at 90 °, which can advantageously have a different, less expensive and simpler drive in the form of a chain 24 , In this embodiment, the ratio of the width of Ankersetzlafette 5 to 3 Bohrlafette is about 70%.
  • the drill mount 3 here has a U-shaped first profile 26 with mirrored arranged second profile 27.
  • prism profiles 32, 33, 34 and 35 are attached, which serve to guide the carriage 4 of cylinder and displacement.
  • the profiles 32, 33, 34, 35 have blocks 28, 29, 30, 31.
  • the prism profiles attached thereto are provided with the reference numerals 36 and 37, the corresponding guide blocks with the reference numerals 38 and 39.
  • FIG. 4 shows the device in the drilling position with the drill carriage 3 in the drilling axis 14.
  • the armature carrier 5 is located laterally on the carrier 2.
  • the carrier 2 is pivoted by extending the cylinder 17 or the pivoting mechanism 7 below the carrier 2 into the carrier FIG. 6 shown position about the pivot point 25, as indicated by the angle ⁇ .
  • FIG. 7 shows a carriage 4 with the vertical webs 47, 48, where the guide blocks 28, 29 are fixed by means of various screws 49, 50, 51, 52. As such, but they are not exposed to wear, because on their inner sides 53, 54 V-shaped plates 40, 41 are attached. The latter can be easily replaced after appropriate wear.
  • the sheet 40 has a web 43 which is formed corresponding to an opening 42 in the guide block 28 and can be fixed via this.
  • FIG. 9 shows the front end 15 of a device 1 in the so-called One Step Ankersetz briefly with an attached to the receptacle 61 guide device 59 with the variable in length mandrel 21, 60. About the gripper 57, the anchor rod 62 can be held, even if this only one Piece should look out of the hole.
  • the drilled anchor should remain fixed even when pivoting the injection forceps, which is why the guide device 59 on the mandrel of the lower part 22nd of the carriage carrier 2 is attached.
  • the position of the gripper 57 to the end 15 of the carriage is the same in both cases.
  • the mandrel 21, 60 consists of two mandrel parts 63 and 64 of different lengths, for fixing the plate 65th
  • FIG. 11 the relay carrier 2 in a further section, in which the emphasis is on the representation of the guide device 59. This is mounted rotated by 90 °. For this purpose, a recording including mandrel is screwed to the position of the actual mandrel or attached in a comparable manner.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)

Claims (18)

  1. Appareil (1) pour la mise en place d'un boulon d'ancrage de roche avec un affût de forage (3) disposé sur un support d'affût (2),
    caractérisé
    en ce que le support d'affût (2) présente un affût de mise en place de boulon d'ancrage (5) dont les dimensions sont réduites par rapport à celles de l'affût de forage (3), affût de mise en place qui est décalé d'environ 90° et dispose d'un système entraînement séparé.
  2. Appareil selon la revendication 1,
    caractérisé
    en ce que l'appareil (1) est équipé d'un mécanisme de pivotement (7) par le biais duquel le support d'affût (2) peut être déplacé entre une position de forage et une position de mise en place de boulon d'ancrage.
  3. Appareil selon la revendication 1,
    caractérisé
    en ce que le mécanisme de pivotement (7) est prévu entre une partie supérieure (23) et une partie inférieure (22) du support d'affût (2).
  4. Appareil selon la revendication 3,
    caractérisé
    en ce qu'un mandrin (21) est disposé à l'extrémité avant (15) de la partie inférieure (22) du support d'affût (2).
  5. Appareil selon la revendication 3,
    caractérisé
    la partie inférieure (22) du support d'affût (2) est équipée d'un dispositif de mise en prise d'affût (18).
  6. Appareil selon la revendication 3,
    caractérisé
    la partie supérieure (23) du support d'affût (2) est télescopique.
  7. Appareil selon la revendication 1,
    caractérisé
    l'affût de mise en place de boulon d'ancrage (5) a une épaisseur d'environ 50% à 75% de celle de l'affût de forage (3).
  8. Appareil selon la revendication 1,
    caractérisé
    en ce que le chariot (6) de l'affût de mise en place de boulon d'ancrage (5) a des dimensions inférieures à celles du chariot (4) de l'affût de forage (3).
  9. Appareil selon la revendication 1,
    caractérisé
    en ce que le mécanisme de mise en place de boulon d'ancrage (10) de l'affût de mise en place de boulon d'ancrage (5) a des dimensions inférieures à celles du mécanisme de rotation et/ou percussion (9) de l'affût de forage (3).
  10. Appareil selon la revendication 1,
    caractérisé
    en ce que l'affût de forage (3) présente comme système d'entraînement un cylindre hydraulique (8) à commande par câble.
  11. Appareil selon la revendication 1,
    caractérisé
    en ce que l'affût de mise en place de boulon d'ancrage (5) présente comme système(s) d'entraînement un cylindre hydraulique à commande par câble et/ou un moteur à entraînement par chaîne.
  12. Appareil selon la revendication 1,
    caractérisé
    en ce que l'affût de forage (3) et l'affût de mise en place de boulon d'ancrage (5) sont équipés de guides séparés (11, 12 et 13) pour tiges de sondage ou boulon d'ancrage.
  13. Appareil selon la revendication 1,
    caractérisé
    en ce que l'appareil (1) est équipé d'un dispositif de guidage démontable (59) pour la tige d'ancrage (62).
  14. Appareil selon la revendication 4,
    caractérisé
    en ce que la longueur du mandrin (21, 60) est réglable.
  15. Appareil selon la revendication 1,
    caractérisé
    en ce que l'affût de forage (3) et/ou l'affût de mise en place de boulon d'ancrage (5) présentent un profil en forme de U.
  16. Appareil selon la revendication 15,
    caractérisé
    en ce qu'un profilé de guidage prismatique (32-35) est soudé ou vissé à l'affût de forage (3) et/ou l'affût de mise en place de boulon d'ancrage (5).
  17. Appareil selon la revendication 16,
    caractérisé
    en ce que les profilés de guidage (32-35) sont équipés de blocs profilés (28-31) fixes et au moins une tôle profilée (40, 41) fixée de manière amovible à ce bloc profilé (28-31).
  18. Appareil selon la revendication 17,
    caractérisé
    en ce que les tôles profilées (40, 41) sont des tôles coudées qui peuvent être fixées au niveau de leurs coudages (44) respectifs au bloc profilé (28-31).
EP09749485A 2008-05-20 2009-05-08 Appareil de forage et de mise en place de boulons d'ancrage comprenant des glissières séparées Not-in-force EP2304179B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09749485T PL2304179T3 (pl) 2008-05-20 2009-05-08 Automatyczne urządzenie wiercące i kotwiące z oddzielnymi lawetami

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008024365A DE102008024365A1 (de) 2008-05-20 2008-05-20 Automatisiertes Bohr- und Ankersetzgerät mit separaten Lafetten
PCT/DE2009/000655 WO2009140943A1 (fr) 2008-05-20 2009-05-08 Appareil de forage et de mise en place de boulons d'ancrage comprenant des glissières séparées

Publications (2)

Publication Number Publication Date
EP2304179A1 EP2304179A1 (fr) 2011-04-06
EP2304179B1 true EP2304179B1 (fr) 2012-08-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09749485A Not-in-force EP2304179B1 (fr) 2008-05-20 2009-05-08 Appareil de forage et de mise en place de boulons d'ancrage comprenant des glissières séparées

Country Status (8)

Country Link
EP (1) EP2304179B1 (fr)
CN (1) CN102037213B (fr)
AU (1) AU2009250200A1 (fr)
DE (1) DE102008024365A1 (fr)
EA (1) EA018534B1 (fr)
PL (1) PL2304179T3 (fr)
WO (1) WO2009140943A1 (fr)
ZA (1) ZA201007467B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013127408A1 (fr) 2012-03-02 2013-09-06 Dh Mining System Gmbh Dispositif pour forer et pour mettre en place des boulons
SE537968C2 (sv) * 2012-07-09 2015-12-22 Atlas Copco Rock Drills Ab Förfarande och anordning vid bultinstallation i berg
US9664041B2 (en) * 2013-12-12 2017-05-30 Caterpillar Global Mining Expanded Products Pty Ltd Drill rig
CN107191137B (zh) * 2016-03-14 2019-05-17 江阴龙凯机械有限公司 多功能锚杆钻车
CN106703849B (zh) * 2017-02-16 2019-09-24 中国铁建重工集团股份有限公司 一种用于水平旋喷设备的臂架
CN108868841A (zh) * 2018-07-06 2018-11-23 中国铁建重工集团有限公司 一种锚杆台车
CN111910629B (zh) * 2020-07-07 2021-10-08 中国电建集团铁路建设有限公司 一种砂浆锚杆施工设备
CN113494302B (zh) * 2021-07-08 2024-01-30 中煤科工开采研究院有限公司 锚杆钻机
CN113494303B (zh) * 2021-07-08 2024-01-30 中煤科工开采研究院有限公司 锚杆钻机

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Publication number Priority date Publication date Assignee Title
DE1217318B (de) * 1963-03-13 1966-05-26 Louis Laurent Chappuis Vorrichtung zum Setzen von Gebirgsankern
FR2520800A1 (fr) * 1982-02-02 1983-08-05 Eimco Secoma Tourelle de foration et de boulonnage
SE465092B (sv) 1990-07-10 1991-07-22 Atlas Copco Constr & Mining Anordning foer saettning av bergbult
US5246313A (en) * 1991-06-28 1993-09-21 Secoma S.A. Apparatus for forming long and short holes and setting rock bolts
US6698529B2 (en) 2001-04-20 2004-03-02 Oldenburg Cannon, Inc. Translating turret rock bolter
CN201011296Y (zh) * 2006-07-04 2008-01-23 山西东华机械有限公司 一种机载锚杆钻机

Also Published As

Publication number Publication date
CN102037213A (zh) 2011-04-27
EA201001804A1 (ru) 2011-04-29
CN102037213B (zh) 2015-05-13
DE102008024365A1 (de) 2009-11-26
EP2304179A1 (fr) 2011-04-06
ZA201007467B (en) 2011-09-28
WO2009140943A1 (fr) 2009-11-26
PL2304179T3 (pl) 2013-02-28
EA018534B1 (ru) 2013-08-30
AU2009250200A1 (en) 2009-11-26

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