EP0524226A1 - Systeme d'ancrage pour forage d'injection avec vis transporteuse. - Google Patents

Systeme d'ancrage pour forage d'injection avec vis transporteuse.

Info

Publication number
EP0524226A1
EP0524226A1 EP91907453A EP91907453A EP0524226A1 EP 0524226 A1 EP0524226 A1 EP 0524226A1 EP 91907453 A EP91907453 A EP 91907453A EP 91907453 A EP91907453 A EP 91907453A EP 0524226 A1 EP0524226 A1 EP 0524226A1
Authority
EP
European Patent Office
Prior art keywords
injection
section
drill
anchor
sections
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.)
Granted
Application number
EP91907453A
Other languages
German (de)
English (en)
Other versions
EP0524226B1 (fr
Inventor
Archibald Richter
Hans Mehesch
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband 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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of EP0524226A1 publication Critical patent/EP0524226A1/fr
Application granted granted Critical
Publication of EP0524226B1 publication Critical patent/EP0524226B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0073—Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/001—Improving soil or rock, e.g. by freezing; Injections

Definitions

  • the invention relates to an injection drill anchor for securing lines and spaces by injection of, for example, synthetic resin, in particular in mining and tunneling, which essentially consists of an anchor pipe which can be assembled from at least two sections which can be connected to one another by sleeves and which has at least one injection ⁇ opening in the anchor tip and at the end protruding from the borehole is provided with a releasable connection element.
  • the invention is based on the task of creating an injection drill anchor which is primarily used with the aid of rotating drilling and without the flushing medium, such as air, which is not appropriate in many situations and water, can be introduced in a simple manner while ensuring the functions of drilling, injecting and anchoring.
  • this object is achieved by that at least a section of the armature is provided with a welded-on transport screw and a section is provided with an inflatable packer and a check valve.
  • An injection drill anchor of this type can be made up of several sections and screwed or drilled as a complete unit into the surrounding mountains or soil.
  • the thread height of the transport screw or the cross section of the transport screw is greater than the cross section of the non-expanded inflatable packer.
  • the screw conveyor ensures that the cuttings are completely removed so that the subsequent gluing of the injection drill anchor is not impaired.
  • the transport screw forms a special bond and load-bearing capacity within the bond within the adhesion section of the injection drill anchor.
  • the part of the injection drill anchor designed as an adhesive section is designed to be extendable as desired via sleeves and the corresponding number of sections.
  • Such an injection drill anchor has a wide range of applications. Apart from the areas of application required in mining in mountainous areas or vertical bores, it is suitable for anchoring or fastening channel walls in connection with water injections that are only marginally influenced when setting. tion materials for sand and gravel consolidation or for anchoring sheet piling or diaphragm walls. In addition, it is suitable for dowelling only through the solidification of layers of rock that cannot normally be anchored to solid rocks. Instead of an exchangeable two-winged or multi-winged drill bit, it is sufficient, for example, to equip the section provided with a transport screw for use in sand or gravel with a simple tip.
  • the corresponding anchor section provided with a transport screw on the anchor tip with a drill bit, for example a two- or three-bladed drill bit.
  • the advantage of the injection drill anchor according to the invention is to be seen essentially in the fact that a solution has been found while ensuring the function of drilling and anchoring, which enables versatile use with regard to rotating drilling, particularly in unused and relatively soft rock formations.
  • an injection drill anchor shown schematically in the drawing and partially in side view shows an anchor tube 1 which consists of a section 2 provided with a transport screw 7 and a section 3 which has a borehole closure in the form of a Inflatable packers 8 is seen. Sections 2 and 3 are connected to one another via a sleeve 4.
  • the screw conveyor 7, which is welded to the section 2, has a larger cross section or a greater height than the inflatable packer 8 in the non-expanded state, so that the drilling cuttings can be requested across the inflatable packer 8.
  • any drill bit 15 is indicated on the armature tip 6 of section 2. Furthermore, an injection opening 5 is provided in the armature tip 6 for the flow of the injection medium pressed into the armature tube 1.
  • the rupture disk 13 represents an exemplary embodiment of a check valve.
  • an external thread 18 is provided, which is used to hold a drill adapter an injection head and a dome nut is provided.
  • a check valve 17 is arranged within the end 16 of section 3.
  • the inflatable packer 8 consists of a flexible, sleeve-like material surrounding the section, which is held immovably on the section 3 by the covers 11 and 12.
  • the injection process is carried out, the pressure of the injection medium, the bore 9 and the corresponding sleeve 10 first opening via the rupture disk 13 as a check valve and the inflatable packer 8 being inflated until it blows against the borehole wall. application.
  • the sleeve 10 acts as a check valve and the actual injection is initiated.
  • a check valve 17 is provided at the end 16 of section 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Earth Drilling (AREA)

Abstract

Un système d'ancrage pour forage d'injection, destiné à assujettir des galeries et des espaces par injection, par exemple de plastique, notamment dans l'exploitation minière et la construction de tunnels, est constitué essentiellement d'un tube d'ancrage composé d'au moins deux parties qui peuvent être mutuellement reliées par des manchons. Le tube d'ancrage comporte au moins un orifice d'injection dans la région de la pointe du système d'ancrage et un élément de raccordement amovible situé à l'extrémité dépassant du trou de forage. Pour introduire ce système d'ancrage sans utiliser un milieu de lavage tel que de l'air ou de l'eau, une vis transporteuse (7) est soudée sur au moins une partie (2), et une partie (3) comporte une garniture d'étanchéité à expansion (8) et un clapet antiretour (17).
EP91907453A 1990-04-11 1991-04-10 Systeme d'ancrage pour forage d'injection avec vis transporteuse Expired - Lifetime EP0524226B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9004176U 1990-04-11
DE9004176U DE9004176U1 (de) 1990-04-11 1990-04-11 Injektionsbohranker mit Transportschnecke
PCT/EP1991/000691 WO1991015656A1 (fr) 1990-04-11 1991-04-10 Systeme d'ancrage pour forage d'injection avec vis transporteuse

Publications (2)

Publication Number Publication Date
EP0524226A1 true EP0524226A1 (fr) 1993-01-27
EP0524226B1 EP0524226B1 (fr) 1994-08-03

Family

ID=6852814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91907453A Expired - Lifetime EP0524226B1 (fr) 1990-04-11 1991-04-10 Systeme d'ancrage pour forage d'injection avec vis transporteuse

Country Status (4)

Country Link
EP (1) EP0524226B1 (fr)
DE (2) DE9004176U1 (fr)
PL (1) PL168275B1 (fr)
WO (1) WO1991015656A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136883C2 (de) * 1991-11-09 1993-10-14 Gd Anker Gmbh & Co Kg Bohrrohr
DE4209802C1 (en) * 1992-03-26 1993-08-26 Schmidt, Kranz & Co Gmbh Zweigniederlassung Zorge, 3421 Zorge, De Rock or masonry sealant injection tube - has bursting disc retained by securing ring in counterbored and externally conical discharge end
NL9400121A (nl) * 1994-01-27 1995-09-01 Hollandsche Betongroep Nv Werkwijze voor het aanbrengen van een groutanker ter verankering van grondkerende wanden, bouwwerken, oeverbeschoeiingen, kademuren en dergelijke, en groutanker die voor het uitvoeren van deze werkwijze kan worden gebruikt.
DE4432472C2 (de) * 1994-09-13 1997-09-18 Reburg Patentverwertungs Gmbh Adapterteil zum Verbinden eines Bohrantriebs mit einem selbstbohrenden Anker
NL1006077C2 (nl) * 1997-05-16 1998-05-20 Van Leeuwen Harmelen Bv Geb Inrichting voor het koppelen van een schroefanker met een verlengbuis.
CN100404788C (zh) * 2003-11-19 2008-07-23 山东省岩土与结构工程技术研究中心 柔性注压锚杆
GB0505788D0 (en) * 2005-03-22 2005-04-27 Roxbury Ltd Method and apparatus for introducing elongate members into the ground
AU2006317519B2 (en) * 2005-11-24 2012-11-29 Peter Andrew Gray Self drilling rock bolt
CN106437801B (zh) * 2016-11-25 2018-04-13 中国矿业大学 一种可扩展的扩孔自锚式锚杆及支护方法
CN111287755B (zh) * 2020-02-24 2021-05-04 中铁隧道集团一处有限公司 一种提高风积沙地层隧道洞身开挖稳定性的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933328C (de) * 1953-10-13 1956-05-03 Wilhelm Weghuber Verfahren zum Verbinden von Gesteinsschichten mittels Gesteinsanker im Bergbau und Mittel zur Ausuebung des Verfahrens
DE3200888A1 (de) * 1982-01-14 1983-07-21 Ingo 4600 Dortmund Stibane Vorrichtung zum nageln gebraecher gebirgsschichten
DE3717024A1 (de) * 1987-05-21 1988-12-01 Willich F Gmbh & Co Vorrichtung zum bohren von bohrloechern und injizieren von verfestigungsmaterial
DE8906126U1 (de) * 1989-05-18 1990-04-19 Bergwerksverband Gmbh, 4300 Essen Injektionsrohr mit Ankerwirkung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9115656A1 *

Also Published As

Publication number Publication date
EP0524226B1 (fr) 1994-08-03
DE9004176U1 (de) 1990-06-28
DE59102441D1 (de) 1994-09-08
PL168275B1 (en) 1996-01-31
WO1991015656A1 (fr) 1991-10-17

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