EP0824633B1 - Ausbaustütze für den untertägigen berg- oder tunnelbau - Google Patents

Ausbaustütze für den untertägigen berg- oder tunnelbau Download PDF

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Publication number
EP0824633B1
EP0824633B1 EP96912021A EP96912021A EP0824633B1 EP 0824633 B1 EP0824633 B1 EP 0824633B1 EP 96912021 A EP96912021 A EP 96912021A EP 96912021 A EP96912021 A EP 96912021A EP 0824633 B1 EP0824633 B1 EP 0824633B1
Authority
EP
European Patent Office
Prior art keywords
outer tube
support
support according
inner tube
piston
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
Application number
EP96912021A
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German (de)
English (en)
French (fr)
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EP0824633A1 (de
Inventor
Theodor Kolk
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Individual
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Individual
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 Individual filed Critical Individual
Publication of EP0824633A1 publication Critical patent/EP0824633A1/de
Application granted granted Critical
Publication of EP0824633B1 publication Critical patent/EP0824633B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
    • 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
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure
    • 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
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

Definitions

  • the invention relates to a support for the underground Mining or tunneling, consisting of two telescopic nested, at the opposite ends closed pipes using a hydraulic working Setting device are braced against the mountains and between which a locking device is provided, through which the inner tube on the outer tube in different Extension lengths can be determined mechanically, whereby the interiors of the prop while maintaining the Set load can be filled with building material.
  • Such a building support filled with building material is, for example known from DE-PS 41 15 209. This after this State of the art support used for the Tension several hydraulic ones before filling in the building material Clamping cylinder, the outside of the outer tube and the Inner tube are attached and the inner tube against the outer tube move. Lays in the extended position a locking device the inner tube on the outer tube in the respective Extend position fixed. The hydraulic clamping cylinders can then be removed. In conclusion, the in this way, support braced against the mountains filled with the building material.
  • the known support of the type mentioned has disadvantages in different ways. Firstly, there is the handling the hydraulic clamping cylinder is extremely cumbersome and labor intensive. Any of those heavy ones The clamping cylinder must be lifted by hand on the support be applied and after the bracing process of this can be removed again. On the other hand, there must be connection options to a high pressure hydraulic system be, for example a connection to the face hydraulics. Furthermore, due to the side attachment the tension cylinder an unfavorable flow of force. That too Telescopic dimension is relatively small.
  • the older, unpublished DE 43 38 830 C1 discloses a similar support in which the inner end of the inner tube is closed and on this Forms a piston that seals in the outer tube is guided and through which the interior of the support in is divided into two chambers, both with building material, e.g. compressible foam concrete, can be filled.
  • the piston is not used here to set the extension support high setting load, but in cooperation with the compressible filler a defined flexibility to achieve the support. serves to set this previously known support a setting mechanism, which on Inserted end of the outer tube is located and height adjustable can be fixed to the inner tube. With this mechanical Setting device cannot achieve high setting loads. Likewise, a high setting load cannot be achieved by filling in expanding foam into the interior of the support be achieved. Such foam is namely compressible and therefore cannot generate high set loads.
  • a support bracket is also known from WO 94/27029, the two telescopically slidable, closed tubes at the opposite ends exists that are hydraulically braced against the mountains and by means of a mechanical locking device in different Extending lengths can be fixed together. Close the outer tube and the inner tube that is movable within it thereby a chamber with a filling connection Pressure medium can be acted upon, the inner tube from the Outer tube extended, d. H. the extension support set becomes.
  • the interiors of this previously known expansion rail are However, it cannot be filled with building material, which gives the advantages this special technology cannot be used.
  • the invention relates to a support for the underground Mining and tunneling, consisting of an inner tube and an outer tube facing away from each other Ends are closed, telescopic can be pushed into each other and by means of a mechanical Locking device in different extension lengths together can be determined, with a hydraulic in the outer tube can be acted upon with set pressure, on the inner tube in the Ausfahrsense acting piston is arranged as flying component separate from the inner tube is and the interior of the support in a below the first chamber (subchamber) and a second chamber located above the piston (Upper chamber) divided, the first chamber (Subchamber) is assigned a first filling connection, via this chamber with a pressurized medium under pressure is acted upon, and the second chamber (Upper chamber) is assigned a second filling connection, via which the expansion prop with displacement of the flying Piston to the end of the outer tube over its entire length Length can be filled with building material.
  • the support according to the invention initially has the advantage that the setting and bracing against the mountains is extraordinary is simple. This is just the lower chamber the support with a suitable hydraulic Pressurized media. This is primarily suitable Water from the low-pressure water pipe that is usually available underground. This usually leads to pressure of 40 bar, which in view of the large diameter of the The outer tube is sufficient to generate a considerable setting force.
  • the operations in the setting process are similar simple, like with hydraulic single punches.
  • a particularly advantageous embodiment of the support according to the invention provides that the mechanical Locking device made of two between the lower end of the inner tube and the piston arranged, nested There are ring wedge elements, one of which is pushed together with plastic widening of the outer tube is radially expandable.
  • the mechanical Locking device results in an early and very stable mechanical bond between the inner tube and the outer tube.
  • a particular advantage of this mechanical Connection is that the inner tube under Maintaining a very high setting load over one relatively long way slidable against the outer tube remains.
  • the outer tube is over the length of the sinking path plastically expanded. This plastic expansion is visible from the outside on the outer support and shows to the miner that there is already one on this support certain convergence has occurred.
  • the locking device can also be at the bottom Spread spring ring arranged at the end of the inner tube be biased elastically in the radial direction and is such that it is an extension movement of the inner tube relative to the outer tube, at an insertion movement in the radial direction spreads that a frictional and / or positive connection to the outer tube.
  • the locking device can also be on the outer circumference of the inner tube have definable ring wedge, which is under plastic Widening of the outer tube from above into the outer tube can be inserted. Also a locking device designed in this way is under a very large path of movement Maintaining a high level of support and compliance it, the extension prop a suitable support characteristic to give.
  • the locking device of the ring wedge on its inner circumference with increasing the friction between the ring wedge and the inner tube Means.
  • the Ring wedge on the inner tube in the axial direction so that the flexibility of the locking device in the first place given by the plastic expansion of the outer tube is.
  • the locking device provided that at the top of the ring wedge Ring made of elastically pre-tensioned material, which is in turn supported on the upper end of the outer tube and presses the ring wedge down in the axial direction. This ensures that the ring key when it starts Immediately converges the expansion of the outer tube records.
  • the extension prop is already developing after one relatively small sinking distance in the area of the locking device full support.
  • the one used for the support according to the invention suitably consists of elastic and / or plastic compliant material, in particular plastic a ring lip seal that clings to the wall of the outer tube open and is at the bottom of a pot-shaped, rigid guide element attached.
  • a piston can be made very cheap and is for the one time Use of the support bracket is sufficiently wear-resistant.
  • the lower chamber can expediently have a pressure relief valve be assigned.
  • a pressure relief valve be assigned.
  • Such a principle of hydraulic Stamping known pressure relief valve has in combination with the flying piston the advantage that you can Support if necessary while maintaining the in the pressure in the subchamber over the full length can fill with building material. However, this is required a building material pump, the one to be fed to the upper chamber Building material with a pressure that is slightly larger than the opening pressure of the pressure relief valve.
  • the support properties of the support according to the invention can be further favorably influenced in the lower chamber elastic, compressible bodies can be arranged, in particular in the form of air-filled hollow bodies or Foam bodies.
  • the subchamber receives precisely selectable elastic properties up to the full Supporting force. By filling more or less such Bodies can change the wearing properties of the prop can be changed at will.
  • the support can be used if necessary also on the foot or head side with axially compressible Be provided spring elements.
  • the wall of the outer tube is at a distance from upper end of the outer tube with serving as stroke limitation Provide holes that, when run over by the piston that connect the lower chamber with the atmosphere.
  • stroke limitation comes in a particularly advantageous manner without stops, which is a much more complicated editing which would require pipes.
  • the walls of the interior and outer pipe in the overlap area with drainage holes are provided, which is located in the column head Dewatering device supplemented or supported.
  • the drainage holes allow the exit of Water from the filled building material. This withdrawal from Excess water is important so that the building material is a load-bearing one Can form a pillar and if necessary can set.
  • the drainage holes in the outer pipe are useful with a water-permeable and at the same time retention of building materials Tissue covered. This will Annulus between the inner and outer tube still with building material filled, but at the same time the leakage of building material the support column is avoided via the drainage holes.
  • the invention provides that the outer tube and the Inner tube inside one of two nested, Existing casing telescopically guided tubes are arranged, the one over their entire length has a larger diameter than the support, the Annulus between the support and the casing with Building material is fillable.
  • This makes it possible to support the extension according to the invention to a very stable
  • Such a support, reinforced with a jacket can be used, for example, to support bridge fields used at crossroads or the like.
  • the casing can practically be of any size have, so that any large supporting forces can be achieved to let.
  • the inside arranged in the casing Extension support according to the invention can also be this stable Support with great strength between hanging and lying be tense.
  • the support is in its entirety with the Reference number 1 denotes. It consists of a closed at the bottom and open top tube 2, in which can be pushed out an inner tube open at the bottom and closed at the top 3 is performed. Located at the lower end of the inner tube 3 there is a piston 4, which seals in the outer tube 2 is guided and serves to push out the inner tube 3. Below the piston 4 is located in the outer tube 2 a first chamber (sub-chamber 5), which has a filling connection 6 with a suitable printing medium, for example Pressurized water can be applied.
  • a suitable printing medium for example Pressurized water
  • a second chamber is located above the piston 4 (Upper chamber 7) which is essentially formed by the inner tube 3 is and at the upper end with a filling 8th is provided.
  • the inner tube 3 is on the outer tube 2 by means of a locking device 9 definable.
  • This locking device 9 has a ring wedge that can be fixed on the outer circumference of the inner tube 3 lo on, with the plastic widening of the outer tube 2 can be inserted into the outer tube 2 from above.
  • the piston 4 is designed as a flying piston, i.e. he is a separate component from the inner tube 3 and lies supporting from below on the inner tube 3.
  • the filling connection 6 is shut off.
  • the inner tube 3 is after with great force pressed down so that the outer tube 2 slightly elastically deformed, i.e. under the influence of that in the lower chamber 5 prevailing pressure becomes slightly thicker.
  • the ring wedge 1o penetrates into it upper end of the outer tube and plastically expands it on.
  • the locking device 9 is loaded gradually, until the locking device 9 can take the required supporting force alone.
  • the lower chamber 5 is emptied. In this state the Support force applied only by the locking device 9.
  • the extension prop can now be used to increase the supporting force filled with building material from above via the filling connection 8 (Fig. 5). With this filling with building material from above forth the building material pushes the piston 4 in the outer tube 2 to on its floor, so that the extension support extends over its entire length Length is filled with building material. If you only want a partial length fill the prop with building material to a certain The filling process can achieve load-bearing behavior be interrupted at any time.
  • the building material can be filled at any time be made as soon as the locking device 9 carries enough. In this way you can support behavior the support according to the invention at any time Adjust the mountain pressure and the occurring convergences. In any case, the miner still has numerous options on site, the support behavior of the support according to the To influence invention in his sense.
  • FIG. 6 largely corresponds the embodiment of Fig. 1.
  • An expansion spring ring 11 is arranged at the end of the inner tube 3, which is elastically biased in the radial direction and with its resilient tongues on the inner wall of the outer tube 2 is present.
  • the spring tongues are arranged so that the inner tube together with the spreading spring ring 11 upwards can be moved, but a move down does not allow. When moving down, spread out the tongues of the spring washer in the radial direction on that a frictional or positive connection to the Outer tube 2 is produced.
  • the locking device is the inner tube 3 at its lower End with a radially expandable ring wedge element 12 provided, in which a located above the piston 4, mating ring wedge element 13 supported on the piston 4 can be inserted from below. Will the mating ring wedge element 13 from below into the radially expandable ring wedge element 12 inserted, it expands with plastic widening of the outer tube 2, so that there is an extreme viable connection with immediate bearing properties between the inner tube 3 and the outer tube 2 results.
  • shearable projections 12a which are initially from the Mating ring wedge element 13 must be sheared off before that Counter ring wedge element 13 inserted into the ring wedge element 12 can be.
  • the shearable cross sections of the projections 12a are chosen so large that the insertion of the Mating ring wedge element 13 into the ring wedge element 12 only can take place when a predetermined, proportionate high setting load is exceeded. Can do the same if necessary also on the wedge surfaces of the mating ring wedge element 13 corresponding shearable projections are provided become.
  • FIG. 11 shows a detailed illustration of the piston 4.
  • This consists of elastic and / or plastically flexible Material, especially plastic and has a ring lip 4a adhering to the wall of the outer tube on.
  • the piston 4 is at the bottom of a cup-shaped, rigid guide element 4b attached, which for example is made of steel.
  • This guide element 4b gives that Pistons have the required guidance and rigidity while the lip seals 4a ensure the tightness. All in all such a piston is cheap to manufacture and therefore particularly suitable for single use.
  • Fig. 12 shows an embodiment of the support according to of the invention, in which the sub-chamber 5 as a Pressure limiting rupture disk 14 is assigned. This rupture disc responds when loading the expansion support has progressed so far that the locking device 9 carries enough.
  • Such spring elements 15 can optionally also be arranged on the foot side of the outer tube 2.
  • elastically compressible hollow body in particular in the form of air-filled hollow bodies 14 or Foam body can be arranged.
  • This elastically compressible Hollow body 14 cause an additional elastic Flexibility of the support.
  • Fig. 15 are in the wall of the outer tube 2 at a distance from its upper end as a stroke limitation serving bores 18 provided when they are run over by the piston, the lower chamber 5 with the Connect atmosphere. Once this connection is established is, of course, the piston 4 can no longer continue be moved up.
  • the drainage bores 19 in the inner tube 3 and 20 can be seen in the outer tube 2, which are in Overlap area of inner tube 3 and outer tube 2 are located.
  • the drainage holes 20 of the outer tube 2 on the outside of a water permeable, for Building material but dense fabric 21 covered.
  • the usual drainage device is, of course, also a support in the column head.
  • FIG. 16 shows a modified embodiment of the Locking device 9.
  • the ring wedge 10 on its inside provided with sharp projections 10a, which in the Engage the outer wall of the inner tube 3. It is also above the ring wedge 10 a ring 22 made of elastically biased Material arranged, which in turn on the top End of the outer tube 2 is supported and the ring wedge lo presses down in the axial direction.
  • the support is inside one of two nested, telescopic nested tubes 23, 24 existing casing arranged.
  • This sheath has all over it Length larger diameter than the support 1, the annular space between the support 2, 3 and the Sheathing 23, 24 via a filling connection arranged at the top 25 can be filled with building material.
  • the inside of the Sheathing 23, 24 arranged support 2, 3 can, like explained above, by hydraulic application of the Piston 4 are set with such a large setting load, with the Locking device 9 are mechanically fixed and over the upper filling connection 8 over its entire length with building material be filled.
  • This support has in conjunction with the casing has an extremely high load capacity.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Actuator (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Supports For Pipes And Cables (AREA)
  • Fluid-Damping Devices (AREA)
  • Piles And Underground Anchors (AREA)
EP96912021A 1995-04-20 1996-04-19 Ausbaustütze für den untertägigen berg- oder tunnelbau Expired - Lifetime EP0824633B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19514137 1995-04-20
DE19514137A DE19514137C2 (de) 1995-04-20 1995-04-20 Ausbaustütze für den untertägigen Berg- oder Tunnelbau
PCT/EP1996/001634 WO1996033336A1 (de) 1995-04-20 1996-04-19 Ausbaustütze für den untertägigen berg- oder tunnelbau

Publications (2)

Publication Number Publication Date
EP0824633A1 EP0824633A1 (de) 1998-02-25
EP0824633B1 true EP0824633B1 (de) 1999-07-14

Family

ID=7759708

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EP96912021A Expired - Lifetime EP0824633B1 (de) 1995-04-20 1996-04-19 Ausbaustütze für den untertägigen berg- oder tunnelbau

Country Status (8)

Country Link
US (1) US5921718A (pl)
EP (1) EP0824633B1 (pl)
CN (1) CN1064734C (pl)
AU (1) AU699612B2 (pl)
DE (3) DE19514137C2 (pl)
PL (1) PL179979B1 (pl)
WO (1) WO1996033336A1 (pl)
ZA (1) ZA9510280B (pl)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
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US6056480A (en) * 1995-04-20 2000-05-02 Kolk; Theodor Support for underground mining and tunnel construction
DE10044367A1 (de) 2000-09-08 2002-03-21 Vos Richard Grubenausbau Gmbh Verlorener Unterstützungsausbau für den Berg- und Tunnelbau
US6910834B2 (en) * 2003-05-27 2005-06-28 Burrell Mining Products, Inc. Mine prop
US7232103B2 (en) * 2004-10-27 2007-06-19 Efficient Mining Systems Llc Load-bearing pressurized liquid column
ZA200808312B (en) * 2007-10-24 2009-11-25 Nils Mittet Skarboevig Mine support grout bags and grout packs
US8801338B2 (en) * 2011-11-28 2014-08-12 Micon Nested mine roof supports
GB201008182D0 (en) * 2010-05-17 2010-06-30 Airbus Operations Ltd An apparatus for fixedly locating a first aerospace component relative to a second aerospace component
AU2010257264B1 (en) * 2010-08-02 2011-06-23 Craig Barnet An Improved Prop for Mining, Construction and the Like
US9140026B2 (en) 2010-08-02 2015-09-22 Cougar Can Company Pty Ltd. Telescopic pumpable props
US8821075B2 (en) * 2011-10-26 2014-09-02 Strata Products Worldwide Llc Yieldable support prop and method
AU2013206571A1 (en) * 2012-08-17 2014-03-06 Mine Support Products (Pty) Ltd Prop
US8851805B2 (en) 2012-08-30 2014-10-07 Burrell Mining Products, Inc. Telescopic mine roof support
US20140072374A1 (en) * 2012-09-07 2014-03-13 Elbroc Mining Products (Pty) Ltd Support prop
CN103290893B (zh) * 2013-07-03 2014-09-17 刘建华 双孔排水管
AU2014331528B2 (en) 2013-10-01 2018-10-25 Adbri Mining Products Pty Ltd Support for use in mine
US9995140B2 (en) * 2013-11-22 2018-06-12 Fci Holdings Delaware, Inc. Yieldable prop with yieldable insert
EA201692170A1 (ru) * 2014-04-28 2017-03-31 Коугар Кан Компани Пти Лтд. Телескопическая нагнетаемая стойка в сборе с усовершенствованными характеристиками сопротивления нагрузкам потолка
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support
CN104879145B (zh) * 2015-06-05 2017-06-20 江苏中矿立兴能源科技有限公司 一种机械式可伸长并恒阻可缩高强度单体支柱
AU2016222477A1 (en) * 2016-09-02 2018-03-22 Mgw Engineering Pty Ltd Apparatus for supporting an explosive device
WO2020086790A1 (en) * 2018-10-24 2020-04-30 Crosscut Enterprises LLC Mine roof support
CN110030024A (zh) * 2019-03-29 2019-07-19 华北水利水电大学 恒阻可缩的柔性支护装置及切顶沿空留巷挡矸支护系统
AU2020272882B2 (en) 2019-04-11 2024-06-13 FCI Holdings Delaware, LLC. Mine roof support, pre-installation assembly for same, and method of installation
CN112253183B (zh) * 2020-09-30 2022-03-01 长沙矿山研究院有限责任公司 用于拱形巷道的吸能让压型主动支撑结构及其支护方法
CN111997663B (zh) * 2020-09-30 2022-03-01 长沙矿山研究院有限责任公司 一种吸能让压型钢支架及其支护工艺
CN116044471A (zh) * 2023-01-18 2023-05-02 天地宁夏支护装备有限公司 四柱柔性单元式超前液压支架及巷道支护方法
CN116398190A (zh) * 2023-04-04 2023-07-07 辽宁工程技术大学 一种井下组装式充填承重柱的方法

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GB2100318A (en) * 1981-05-13 1982-12-22 Ogc Research & Dev Ltd Improvements in and relating to support members
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DE4221941A1 (de) * 1992-07-03 1994-01-05 Ruhrkohle Ag Hydraulischer Grubenstempel
DE4224852C2 (de) * 1992-07-28 1997-06-12 Langerbein Scharf Gmbh & Co Kg Rohrstütze, insbesondere für den untertägigen Berg- und Tunnelbau
WO1994027029A1 (en) * 1993-05-07 1994-11-24 Advanced Mining Software Limited Support prop
DE4316390C1 (de) * 1993-05-17 1994-04-21 Volker Merz Ausbaustütze
DE4338830C1 (de) * 1993-11-13 1995-05-11 Bochumer Eisen Heintzmann Unter dem Einfluß einer aufzunehmenden Stützlast nachgiebige Stütze für den Einsatz in Untertageräumen

Also Published As

Publication number Publication date
AU699612B2 (en) 1998-12-10
DE19514137C2 (de) 1997-02-13
ZA9510280B (en) 1996-09-06
CN1185193A (zh) 1998-06-17
PL179979B1 (pl) 2000-11-30
DE29507774U1 (de) 1995-08-24
AU5501096A (en) 1996-11-07
DE19514137A1 (de) 1996-10-24
US5921718A (en) 1999-07-13
EP0824633A1 (de) 1998-02-25
PL322873A1 (en) 1998-03-02
DE59602449D1 (de) 1999-08-19
WO1996033336A1 (de) 1996-10-24
CN1064734C (zh) 2001-04-18

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