EP0524226B1 - Injektionsbohranker mit transportschnecke - Google Patents
Injektionsbohranker mit transportschnecke Download PDFInfo
- Publication number
- EP0524226B1 EP0524226B1 EP91907453A EP91907453A EP0524226B1 EP 0524226 B1 EP0524226 B1 EP 0524226B1 EP 91907453 A EP91907453 A EP 91907453A EP 91907453 A EP91907453 A EP 91907453A EP 0524226 B1 EP0524226 B1 EP 0524226B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- anchor
- section
- drill
- conveyor screw
- 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
Links
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 238000005065 mining Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims abstract description 3
- 230000008961 swelling Effects 0.000 claims abstract 4
- 238000005553 drilling Methods 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
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 routes and spaces by injecting synthetic resin, in particular in mining and tunneling, which essentially consists of an anchor tube which can be assembled from at least two sections which can be connected via sleeves and which has at least one injection opening in the region of the anchor tip and is provided with a detachable connection element at the end protruding from the borehole.
- Difficulties in setting anchors occur especially in underground construction if the holes have to be drilled vertically downwards and water is unsuitable for transporting the cuttings and air is unsuitable.
- An injection drill anchor according to the preamble of claim 1 is described in DE-A-37 17 024.
- This injection drill anchor has a coarse thread on its outer surface, which is required for the socket connection and is designed as an adhesive section.
- the known injection drill anchor requires an air or water flush to transport the cuttings.
- this is designed as an expansion anchor and provided with a helical ridge for removing the cuttings.
- the invention has for its object to provide an injection drill anchor, which is primarily with the help of rotating drilling and without the in many situations not appropriate flushing medium, such as air 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 with an inflatable packer and a check valve.
- Such an injection drill anchor can be made up of several sections and screwed or drilled as a complete unit in the surrounding mountains or soil.
- the thread height of the screw conveyor or the cross section of the screw conveyor is greater than the cross section of the unexpanded inflatable packer. In this way, the drilled cuttings and conveyed over the screw conveyor can be discharged over the borehole closure.
- the screw conveyor ensures that the cuttings are fully deployed so that the subsequent bonding 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 freely extendable 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 unused mountain ranges or vertical bores, it is suitable for anchoring or fastening channel walls in connection with injection materials which are only slightly influenced by water when setting 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- or multi-bladed 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 can be seen essentially in the fact that a solution has been found while ensuring the function of drilling and anchoring, which enables a versatile application with regard to rotating drilling, especially 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 is provided with a borehole closure in the form of an inflatable packer 8. Sections 2 and 3 are connected to one another via a sleeve 4.
- the screw conveyor 7, which is welded onto 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 cuttings can be conveyed away over 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 through-flow of the injection medium pressed into the armature tube 1.
- All-round or radially oriented stops 14 are provided within the sleeve 4 and serve to receive a rupture disk 13 opposite the end of the section 2 screwed into the sleeve 4.
- 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.
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)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9004176U DE9004176U1 (de) | 1990-04-11 | 1990-04-11 | Injektionsbohranker mit Transportschnecke |
DE9004176U | 1990-04-11 | ||
PCT/EP1991/000691 WO1991015656A1 (de) | 1990-04-11 | 1991-04-10 | Injektionsbohranker mit transportschnecke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0524226A1 EP0524226A1 (de) | 1993-01-27 |
EP0524226B1 true EP0524226B1 (de) | 1994-08-03 |
Family
ID=6852814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91907453A Expired - Lifetime EP0524226B1 (de) | 1990-04-11 | 1991-04-10 | Injektionsbohranker mit transportschnecke |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0524226B1 (pl) |
DE (2) | DE9004176U1 (pl) |
PL (1) | PL168275B1 (pl) |
WO (1) | WO1991015656A1 (pl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007059580A1 (en) * | 2005-11-24 | 2007-05-31 | Peter Andrew Gray | Self drilling rock bolt |
Families Citing this family (9)
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 |
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)
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 |
-
1990
- 1990-04-11 DE DE9004176U patent/DE9004176U1/de not_active Expired - Lifetime
-
1991
- 1991-04-10 WO PCT/EP1991/000691 patent/WO1991015656A1/de active IP Right Grant
- 1991-04-10 EP EP91907453A patent/EP0524226B1/de not_active Expired - Lifetime
- 1991-04-10 PL PL91296326A patent/PL168275B1/pl unknown
- 1991-04-10 DE DE59102441T patent/DE59102441D1/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007059580A1 (en) * | 2005-11-24 | 2007-05-31 | Peter Andrew Gray | Self drilling rock bolt |
Also Published As
Publication number | Publication date |
---|---|
PL168275B1 (en) | 1996-01-31 |
DE9004176U1 (de) | 1990-06-28 |
WO1991015656A1 (de) | 1991-10-17 |
EP0524226A1 (de) | 1993-01-27 |
DE59102441D1 (de) | 1994-09-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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