WO2007124516A1 - Installation de tuteur - Google Patents

Installation de tuteur Download PDF

Info

Publication number
WO2007124516A1
WO2007124516A1 PCT/ZA2006/000087 ZA2006000087W WO2007124516A1 WO 2007124516 A1 WO2007124516 A1 WO 2007124516A1 ZA 2006000087 W ZA2006000087 W ZA 2006000087W WO 2007124516 A1 WO2007124516 A1 WO 2007124516A1
Authority
WO
WIPO (PCT)
Prior art keywords
prop
support
cylinder
footwall
relatively
Prior art date
Application number
PCT/ZA2006/000087
Other languages
English (en)
Inventor
Dion Booyens
Original Assignee
Mine Support Products (Pty) Ltd
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 Mine Support Products (Pty) Ltd filed Critical Mine Support Products (Pty) Ltd
Priority to AU2006342399A priority Critical patent/AU2006342399B2/en
Publication of WO2007124516A1 publication Critical patent/WO2007124516A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58—Devices for setting props or chocks

Definitions

  • This invention relates primarily to the installation of a prop such as an elongate support in an underground excavation, particularly in an area which is not adequately protected.
  • the invention is concerned with a prop installation method which at least partly addresses the aforementioned factor.
  • the invention provides, in the first instance, a method of installing a first prop in an underground location which includes the steps of supporting the first prop in a
  • Each prop may be of any appropriate kind but preferably is actuable by hydraulic means.
  • the first prop when in the retracted mode, may be telescopically retracted.
  • the first prop when actuated, may be extended telescopically.
  • the first prop when supported on the second prop, may be supported above a footwall in the location.
  • a cantilevered type support which is movable along an arc relatively to the second prop when the first prop is moved to the installation position.
  • the method may include the step, prior to actuation of the first prop, of allowing the first prop to move downwardly into engagement with a footwall. This downwards movement may be guided by means on the aforementioned support.
  • the invention also extends to apparatus for installing a prop which includes an attachment mechanism which is engageable with a suitable support, a structure which is mounted to and which extends from the attachment mechanism, the structure being movable relatively to the attachment mechanism, at least one support member on the structure which is engageable with the prop so that the prop is then supported by the structure and is movable together with the structure, a release device which is actuable at a location which is remote from the support member for causing the support member to disengage from the prop, and at least one guide member which then guides movement of the prop,
  • the attachment mechanism may be adapted to be engageable with a prop or formations on a prop which is similar to the prop which is being installed.
  • the structure may extend in cantilever fashion from the attachment mechanism and may be pivotally movable relatively thereto through an arc.
  • the support member may include opposed formations, for example opposed limbs of a fork, which are respectably engageable with appropriate formations on opposed sides of the prop.
  • the release device may be of any appropriate kind and may be adapted to cause movement of the support member relatively to the prop thereby to cause the support member to be disengaged from the prop.
  • the release device is preferably positioned at or close to the attachment mechanism.
  • the guide member may be orientated so that movement of the prop is guided in a vertical downwards direction.
  • the guide member may, itself, be tubular or include one or more formations e.g. rings which encompass respective portions of the prop.
  • the invention also provides a prop which includes a cylinder, a piston which is telescopically movable inside the cylinder, an inlet to a portion of the cylinder to provide a means whereby an interior of the cylinder can be pressurised thereby to cause telescopic movement of the piston outwardly relatively to the cylinder, and at least two spaced formations on an outer side of the cylinder for engagement with a structure which is used to support a similar prop.
  • Figure 1 is a side view illustrating the installation of a prop in an underground excavation in accordance with the method of the invention
  • Figure 2 is a cross' sectional view of part of the arrangement shown in Figure 1 taken on a line 2 - 2; /
  • Figure 3 is a cros ( 's sectional view of part of the arrangement shown in Figure 1 taken on a line 3 - 3;
  • Figures 4A and 4B are simplified plan views of the arrangement shown in Figure 1 illustrating different stages during the installation of a prop according to the invention; and Figure 5 illustrates the prop, correctly located a'nd in the process of being actuated.
  • Figure 1 of the accompanying drawings illustrates from one side, a first prop
  • the prop 10 has a cylinder 18, a piston 20 which is telescopically mounted in the cylinder and a valve inlet 22 which is connected to a hydraulic hose 24 extending from a hydraulic source, not shown, which is used to pressurise an internal volume of the cylinder, when required.
  • a hydraulic source not shown
  • This type of operation is known in the art and thus is not further described herein.
  • a second prop 1OA which for all practical purposes is the same as the first prop 10, is shown in an installed cjonfiguration.
  • the piston 2OA is telescopically extended from the cylinder 18A to a maximum extent, as is known in the art, so that
  • Support structure 40 is mounted to the second prop 10A.
  • This structure includes an attachment mechanism 42 and a cantilever support in the form of a boom 44 which extends from the [attachment mechanism.
  • the attachment mechanism has two pins or rings 46 and 48 respectively, according to requirement, which are engageable with the respective pivot support members 34A and 36A on the second prop in a manner which is permits pivotal movement of the boom relatively to the second prop 10A.
  • the boom 44 at an end which is remote from the attachment mechanism 42, has a vertically extending rod 50.
  • the position of the rod relatively to the boom can be adjusted in a vertical sense using any appropriate device, not shown.
  • Two fork- shaped members 52 and 54 respectively which are vertically spaced from each other, are mounted to the rod 50 and project outwardly from the rod, in line with the boom, when viewed in plan.
  • Locking pins 56 and 58 are engageable with the fork- shaped members 52 and 54 respectively, as is more clearly illustrated in Figure 3.
  • a rod 60 which is engaged at one end with the uppermost pivot support member 32A on the second prop* extends above the boom towards the first prop.
  • a fork-shaped member 62 is secured to an end 64 of the rod which is remote from the second prop. It is to be noted that the fork-shaped member 62, although generally of the same shape as the members 52 and 54, has a smaller transverse dimension and does not have 'a locking pin engaged with it.
  • a guide 66 extends upwardly fr «Dm the boom 44.
  • the guide is vertically adjustable, in any appropriate way, so that it cradles a portion of the rod 60.
  • Figure 2 illustrates in plan the upperrjnost fork-shaped member 62.
  • Figure 3 is a similar view of the fork-shaped member 52.
  • Figure 3 has an inset drawing which is a cross sectional view in a direction which i.s transverse to the plan view and which shows in slightly enlarged detail a portion of the vertical rod 50, a portion of the fork- shaped member 52 and part of the intermediate ring 28.
  • the fork-shaped member has an inner surface which opposes the cylinder 18 and which tapers inwardly from an upper end of the fork-shaped member towards a lower end.
  • the second prop 10A once installed, and acting together with other props, not shown, provides adequate support for the hanging wall and thereby creates an acceptable environment in which personnel can with a fa.ir degree of safety continue mining activity.
  • a working face 70 is advanced. Once the face 70 is at a distance from the second prop 10A at which additional roof support is required then the first prop 10, and where required additional similar props, is installed. This is done as follows.
  • the support structure 40 is attached to the second prop 10A in the manner described.
  • the boom 44 is however swung in a direction 72, see Figure 4A, at which the boom is remote from the working face 70 and, in effect, is within an area which is protected by props which riave already been installed.
  • the first prop 10 is engaged with the structure 40 in the manner shown in Figure 1.
  • the prop 10 is retracted so that the piston 20 is telescopicaliy withdrawn into the cylinder 18.
  • the fork-shaped support member 62 is engaged with an undersurface of the upper ring
  • the mass of the first prop then keeps the prop resting firmly on the fork-shaped member 62.
  • the locking pins 56 and 58 are respectively engaged with the fork-shaped members 52 and 54 and thus prevent the first prop from becoming inadvertently disengaged from the support structure.
  • the boom is pivoted in a direction 74 so that the prop 10 is moved towards the face 70.
  • the rod 60 is retracted in a direction 76, towards the second prop 1OA, as is shown in Figure 5, and the fork-shaped member 62 is thereby disengaged from the upper ring 26.
  • the rod 60 slides through the upper pivot support member 32A.
  • the cylinder is internally pressurised by introducing hydraulic fluid into the cylinder through the hose 24.
  • the piston 20 is thereby extended until it is firmly braced between the hanging wall 14 and the footwall 16.
  • the prop installed in this manner, functions to provide overhead support and personnel can approach the prop 10 and disengage the locking pins from the rings 52 and 54.
  • the structure 40 can then be detached from the second prop so that it is available for use, when required, on the first prop or, for that matter on any other similar prop.
  • the vertical position of the rod 50 is preferably adjustable relatively to the boom so that the height at which the first prop is supported on the uppermost fork- shaped member 62 is variable in order to accommodate a footwall of irregular height.
  • the first prop can be pivoted to and fro above the footwall without impacting on a part thereof.
  • any of the rings 26 to 30 could impact on, and come to rest on, one of the fork-i-shaped members 52 and 54.
  • the rings are preferably bevelled or formed in the manner shown in Figure 3, i.e. with an upwardly facing sloping surface so that even if a ring does impact one of the members there is a natural tendency for the ring to slide off the member and so not impede the downwards movement of the prop.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

La présente invention concerne un procédé pour l'installation d'un premier tuteur dans un emplacement souterrain comprenant les étapes consistant à supporter le premier tuteur en mode rétracté sur un second tuteur précédemment installé, déplacer le premier tuteur, alors qu'il est ainsi supporté, par rapport au second tuteur vers une position d'installation, actionner le premier tuteur en mode fonctionnel étendu et désengager le premier tuteur du second tuteur. L'invention concerne également un appareil correspondant.
PCT/ZA2006/000087 2006-04-25 2006-07-06 Installation de tuteur WO2007124516A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2006342399A AU2006342399B2 (en) 2006-04-25 2006-07-06 Prop installation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2006/03313 2006-04-25
ZA200603313 2006-04-25

Publications (1)

Publication Number Publication Date
WO2007124516A1 true WO2007124516A1 (fr) 2007-11-01

Family

ID=37657630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2006/000087 WO2007124516A1 (fr) 2006-04-25 2006-07-06 Installation de tuteur

Country Status (3)

Country Link
AU (1) AU2006342399B2 (fr)
WO (1) WO2007124516A1 (fr)
ZA (1) ZA200703351B (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912803C (de) * 1951-10-24 1954-06-03 Gewerk Eisenhuette Westfalia Hilfsvorrichtung zum Setzen und Rauben von Stempeln
FR1080826A (fr) * 1952-05-27 1954-12-14 Mining Engineering Co Ltd Supports de toit dans les mines
GB784217A (en) * 1954-01-13 1957-10-09 Coal Industry Patents Ltd Improvements in or relating to means for setting pit props
DE1193458B (de) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandernder Grubenausbau
US4332512A (en) * 1979-05-22 1982-06-01 Bochumer Eisenhuette Heintzmann Gmbh & Co. Arrangement for erecting columnar supporting elements for underground excavations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912803C (de) * 1951-10-24 1954-06-03 Gewerk Eisenhuette Westfalia Hilfsvorrichtung zum Setzen und Rauben von Stempeln
FR1080826A (fr) * 1952-05-27 1954-12-14 Mining Engineering Co Ltd Supports de toit dans les mines
GB784217A (en) * 1954-01-13 1957-10-09 Coal Industry Patents Ltd Improvements in or relating to means for setting pit props
DE1193458B (de) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandernder Grubenausbau
US4332512A (en) * 1979-05-22 1982-06-01 Bochumer Eisenhuette Heintzmann Gmbh & Co. Arrangement for erecting columnar supporting elements for underground excavations

Also Published As

Publication number Publication date
AU2006342399B2 (en) 2012-02-16
ZA200703351B (en) 2008-08-27
AU2006342399A1 (en) 2007-11-01

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