WO1991015657A1 - Systeme d'ancrage pour puits d'injection - Google Patents

Systeme d'ancrage pour puits d'injection Download PDF

Info

Publication number
WO1991015657A1
WO1991015657A1 PCT/EP1991/000692 EP9100692W WO9115657A1 WO 1991015657 A1 WO1991015657 A1 WO 1991015657A1 EP 9100692 W EP9100692 W EP 9100692W WO 9115657 A1 WO9115657 A1 WO 9115657A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection
section
anchor
drill
designed
Prior art date
Application number
PCT/EP1991/000692
Other languages
German (de)
English (en)
Inventor
Archibald Richter
Hans Mehesch
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
Priority to DE59102272T priority Critical patent/DE59102272D1/de
Priority to PL91296327A priority patent/PL168194B1/pl
Priority to EP91907426A priority patent/EP0524223B1/fr
Publication of WO1991015657A1 publication Critical patent/WO1991015657A1/fr

Links

Classifications

    • 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
    • E21D21/0046—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
    • 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 tunnel construction, which consists of an anchor pipe which can be assembled from at least two sections which can be connected to one another via sleeves and which is connected to the anchor directed deepest to the borehole ⁇ tip has a drill bit, as well as flushing * and injection openings and which is provided with a borehole closure and at the end protruding from the borehole with a detachable connecting element.
  • Drill anchors consist of an anchor tube, at the tip of which a welded or attachable, so-called lost drill bit is attached.
  • the anchor pipe is initially used as a drill pipe and subsequently as an anchor, the anchor pipe being filled after drilling, for example with adhesive mortar, in order to fill the annular space and the upcoming gaps in the mountains.
  • a particular advantage of using drill anchors of this type is that the anchor tubes can be made from sections that can be assembled via sleeves and are thus suitable for being introduced from narrow distances.
  • the drill anchors are introduced using rotary or impact drills.
  • a particular disadvantage when using drill anchors with lost drill bits is the difficulty in adequately sealing the borehole, in particular when injecting a two-component synthetic resin, with correspondingly high pressures.
  • an injection tube is also known which is suitable for bonding loosened mountain areas by injections with strengthening agents, in particular in the face, at face edges and geological disturbances.
  • borehole closures in the form of so-called inflatable packers are applied to the injection pipe. Due to the arrangement of corresponding check valves, the inflation packer is inflated to such an extent by the injection pressure that there is a tight contact with the borehole wall so that the actual injection process can then be carried out.
  • the invention has for its object to provide an injection drill anchor, which is suitable to be used when equipped with a lost drill bit and extendable over corresponding sections both as a drill pipe and as an anchor tube, using rotation - and impact drills avoid the difficulties of inserting anchor rods, especially in common mountains, and which allows the use of synthetic resins that can be pressed in under high pressures, thereby making it possible to completely seal the borehole.
  • section designed as a drill with a connecting element designed as a drilling adapter is interchangeable with a section designed as an anchor tube, the section being provided with a borehole closure.
  • the injection drill anchor can be adjusted to any desired length via several sections and corresponding socket connections, a check valve in the form of a rupture disk being provided in the connection socket of the last section, which has a bochloch closure in the form of an inflatable packer.
  • stops are provided within the internally threaded sleeves, which are designed in connection with a screw-in end of a section for locking the rupture disk.
  • the interchangeable anchor tube section which receives the inflatable packer, can be replaced at the end with a thread for receiving an injection head or for receiving a dome nut for the dome plate.
  • the inflatable packer is known as an inflatable hose section surrounding the anchor tube section and held at the ends by bindings is formed, a non-return valve being integrated between the anchor rod and blowing space to prevent the return from the blowing space.
  • the advantage of the injection drill anchor according to the invention is to be seen in particular in the fact that, when the borehole is produced by the function of the anchor rod as a drill, the drilling cuttings are adequately transported by flushing with water or air, and that the subsequent drilling Function of the same rod as an anchor ensures that the destruction of the borehole produced by pulling out the entire rod or by broken mineral or rock is avoided.
  • the interchangeability of the last section of the whole is designed as a drill or as an anchor Rods also ensure that the borehole in question is completely and securely sealed while saving injection material.
  • FIG. 1 - a schematic representation of an exemplary embodiment of an injection drill anchor as it is designed according to the invention for drilling a borehole
  • FIG. 2 shows a likewise schematic and sectional representation of an exemplary embodiment of an injection drill anchor as it is designed for the subsequent injection and anchoring, including a borehole closure.
  • the injection drill anchor essentially consists of an anchor tube 1, which is composed of sections 2 and 3 via a sleeve 7.
  • section 2 is provided with a lost drill bit 4 * and also has flushing or injection openings 5 and 6.
  • Sections 2 can be smooth-walled or profiled for later better adhesion.
  • the sleeve 7 is provided with internal threads 8 and has stops 9 between the ends of the sections 2 and 3.
  • the section 3 is provided at the end protruding from the borehole mouth with a schematically illustrated drilling adapter 12 which can be screwed onto the thread 11. With this design or divided into further sections, the anchor tube 1 is initially used to create a borehole.
  • FIG. 2 shows an embodiment of an injection drill anchor in which section 3, which is initially required to produce a borehole, is replaced by a section 13.
  • the section 13 is threaded at the end protruding from the borehole provided for receiving an injection head and has a check valve 19.
  • Section 13 is also provided with a so-called inflatable packer 14 for sealing off the borehole.
  • the inflatable packer 14 essentially consists of a hose section 21 which is fixed immovably on the section 13 by means of covers 17, 18.
  • bores 15 are provided in the section 13, which are sealed by a sleeve 16 and are designed as a check valve.
  • a rupture disk 10 is inserted, which is locked in position between a stop 9 and the end of a section 2 or 13.
  • the openings provided as flushing openings 5, 6 in the production of the borehole now serve as injection openings.
  • the inner channel of the anchor tube 1 initially serves as a flushing channel when a drill hole is made in the rock, in order to use the flushing medium to remove the cuttings from the drill hole via the annular space.
  • the inflation space of the inflatable packer 14 is inflated in such a way that a tight, all-round contact with the borehole wall is achieved.
  • the further increasing pressure of the injection destroys the rupture disk 10 and the annular space or the fissures in the mountains are injected.
  • a spherical cap plate is screwed onto the end of the anchor tube protruding from the mouth of the borehole.

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)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Afin de consolider des galeries et des espaces, par injection de résine synthétique par exemple, notamment dans l'exploitation de mines et la construction de tunnels, des tuyaux d'ancrage se composent d'au moins deux sections susceptibles d'être reliées l'une à l'autre par des manchons et comprennent sur la pointe d'ancrage orientée vers le fond du trou de forage une couronne de fleuret, ainsi que des orifices de rinçage et d'injection. Les tuyaux d'ancrage sont pourvus d'un obturateur du trou de forage et d'un élément amovible de raccord agencé à leur extrémité qui fait saillie hors du trou de forage. Afin d'utiliser ces tuyaux d'ancrage aussi bien comme systèmes d'ancrage que comme tiges de sondage, la section(3) qui sert de foreur est pourvue d'un élément de raccord qui sert d'adaptateur (12), et est interchangeable avec une section (13) qui sert de tuyau d'ancrage (1). La section (13) est pourvue d'un obturateur (14) du trou de forage et d'un clapet de non-retour (19).
PCT/EP1991/000692 1990-04-11 1991-04-10 Systeme d'ancrage pour puits d'injection WO1991015657A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59102272T DE59102272D1 (de) 1990-04-11 1991-04-10 Injektionsbohranker.
PL91296327A PL168194B1 (pl) 1990-04-11 1991-04-10 Kotew wiertniczo-iniekcyjna PL
EP91907426A EP0524223B1 (fr) 1990-04-11 1991-04-10 Systeme d'ancrage pour puits d'injection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004177U DE9004177U1 (de) 1990-04-11 1990-04-11 Injektionsbohranker
DEG9004177.1U 1990-04-11

Publications (1)

Publication Number Publication Date
WO1991015657A1 true WO1991015657A1 (fr) 1991-10-17

Family

ID=6852815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000692 WO1991015657A1 (fr) 1990-04-11 1991-04-10 Systeme d'ancrage pour puits d'injection

Country Status (4)

Country Link
EP (1) EP0524223B1 (fr)
DE (2) DE9004177U1 (fr)
PL (1) PL168194B1 (fr)
WO (1) WO1991015657A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689175A1 (fr) * 1992-03-26 1993-10-01 Schmidt Kranz Co Gmbh Sonde d'imprégnation.
WO1996020331A1 (fr) * 1994-12-24 1996-07-04 Reburg-Patentverwertungsgesellschaft Mbh Soupape d'injection sous pression
WO2001057363A1 (fr) * 2000-02-05 2001-08-09 Jora-Tec Gmbh Ancre a injection
EP1108818A3 (fr) * 1999-12-13 2002-06-05 KELLER GRUNDBAU GmbH Fondation active
DE10148683C1 (de) * 2001-10-02 2002-10-24 Schmidt & Co Gmbh Kranz Injektionsbohrsanker
DE102008005452A1 (de) * 2008-01-21 2009-07-30 Dmi Injektionstechnik Gmbh Verfahren zum Verfestigen von Bodenabschnitten und Vorrichtung zur Durchführung des Verfahrens
AT510139A1 (de) * 2010-07-02 2012-01-15 Soellinger Johann Vorrichtung zum abdichten und fixieren eines in ein bohrloch eingesetzten rohres im bohrloch
EP2354448A3 (fr) * 2010-01-28 2018-01-03 Küchler Technik AG Boulon d'ancrage auto-foreur doté d'un joint pour le boulon
CN113969798A (zh) * 2021-09-08 2022-01-25 齐鲁理工学院 一种用于煤矿巷道顶板支护的锚固装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3201413B2 (ja) * 1991-07-02 2001-08-20 ゲー デー アンケル ゲゼルシャフト ミット ベシュレンクテル ハフツング 注入管と地盤アンカーを設置する方法
DE4128154C2 (de) * 1991-07-02 1994-06-16 Gd Anker Gmbh & Co Kg Injektionsrohr und Verfahren zum Setzen eines Gebirgsankers
IT1275231B (it) * 1995-02-09 1997-07-31 Sireg S P A Soc It Di Ricerca Dispositivo per l'armatura il consolidamento e la stabilizzazione del terreno particolarmente atto ad impedire frane o deformazioni del fronte di scavo in gallerie o scavi in trincea
CN107119669A (zh) * 2017-05-23 2017-09-01 中交第二航务工程局有限公司 用于盾构在富水砂层中侧穿房屋的预注浆加固地基方法
CN110925002B (zh) * 2019-12-04 2024-07-05 平顶山天安煤业股份有限公司十一矿 一种充注树脂抗剪锚杆及加工制作方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689175A1 (fr) * 1992-03-26 1993-10-01 Schmidt Kranz Co Gmbh Sonde d'imprégnation.
WO1996020331A1 (fr) * 1994-12-24 1996-07-04 Reburg-Patentverwertungsgesellschaft Mbh Soupape d'injection sous pression
EP1108818A3 (fr) * 1999-12-13 2002-06-05 KELLER GRUNDBAU GmbH Fondation active
WO2001057363A1 (fr) * 2000-02-05 2001-08-09 Jora-Tec Gmbh Ancre a injection
DE10148683C1 (de) * 2001-10-02 2002-10-24 Schmidt & Co Gmbh Kranz Injektionsbohrsanker
EP1300546A1 (fr) 2001-10-02 2003-04-09 Schmidt, Kranz & Co. GmbH Ancrage de forage et d'injection
DE102008005452A1 (de) * 2008-01-21 2009-07-30 Dmi Injektionstechnik Gmbh Verfahren zum Verfestigen von Bodenabschnitten und Vorrichtung zur Durchführung des Verfahrens
DE102008005452B4 (de) * 2008-01-21 2009-12-31 Dmi Injektionstechnik Gmbh Verfahren zum Verfestigen von Bodenabschnitten und Vorrichtung zur Durchführung des Verfahrens
EP2354448A3 (fr) * 2010-01-28 2018-01-03 Küchler Technik AG Boulon d'ancrage auto-foreur doté d'un joint pour le boulon
AT510139A1 (de) * 2010-07-02 2012-01-15 Soellinger Johann Vorrichtung zum abdichten und fixieren eines in ein bohrloch eingesetzten rohres im bohrloch
AT510139B1 (de) * 2010-07-02 2015-05-15 Söllinger Johann Vorrichtung zum abdichten und fixieren eines in ein bohrloch eingesetzten rohres im bohrloch
CN113969798A (zh) * 2021-09-08 2022-01-25 齐鲁理工学院 一种用于煤矿巷道顶板支护的锚固装置
CN113969798B (zh) * 2021-09-08 2023-09-26 齐鲁理工学院 一种用于煤矿巷道顶板支护的锚固装置

Also Published As

Publication number Publication date
EP0524223B1 (fr) 1994-07-20
EP0524223A1 (fr) 1993-01-27
DE9004177U1 (de) 1990-06-28
DE59102272D1 (de) 1994-08-25
PL168194B1 (pl) 1996-01-31

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