WO2001077445B1 - Method and device for the production of back-cut cavities - Google Patents

Method and device for the production of back-cut cavities

Info

Publication number
WO2001077445B1
WO2001077445B1 PCT/DE2001/001422 DE0101422W WO0177445B1 WO 2001077445 B1 WO2001077445 B1 WO 2001077445B1 DE 0101422 W DE0101422 W DE 0101422W WO 0177445 B1 WO0177445 B1 WO 0177445B1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
hole
removal
working area
elements
Prior art date
Application number
PCT/DE2001/001422
Other languages
German (de)
French (fr)
Other versions
WO2001077445A1 (en
Inventor
Jens Kardel
Jens Meissner
Original Assignee
Stump Spezialtiefbau 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 Stump Spezialtiefbau Gmbh filed Critical Stump Spezialtiefbau Gmbh
Priority to DE50101611T priority Critical patent/DE50101611D1/en
Priority to AT01933596T priority patent/ATE261026T1/en
Priority to EP01933596A priority patent/EP1272711B1/en
Publication of WO2001077445A1 publication Critical patent/WO2001077445A1/en
Publication of WO2001077445B1 publication Critical patent/WO2001077445B1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Soil Working Implements (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Ropes Or Cables (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Earth Drilling (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention relates to a method for the production of a back-cut cavity, in particular, for the production of a support member. An essentially straight hole (7) is produced in a subsoil (5), whereby a device (9), with a rotatable shaft (11) and at least one radially displaceable excavating element (17) arranged thereon, is introduced into the hole (7). Said device (9) is set in rotation, whereby the at least one excavating element (17) excavates or loosens the material of the subsoil (5) in the region surrounding the working region (15) of the flexible elements (17) on the device (9) due to the centrifugal forces. During the excavation and loosening of the subsoil (5), or thereafter, the excavated or loosened material is flushed away to form a back-cut cavity by means of a flushing agent (21).

Claims

15GEÄNDERTE ANSPRÜCHE[beim Internationalen Büro am 9. Oktober 2001 (09.10.01) eingegangen; ursprüngliche Ansprüche 1-14 durch geänderte Ansprüche 1-10 ersetzt (4 Seiten)] 15 CHANGED CLAIMS [received at the International Bureau on October 9, 2001 (October 9, 2001); original claims 1-14 replaced by amended claims 1-10 (4 pages)]
1. Nerfahren zur Herstellung eines hinterschnittenen Hohlraums, insbesondere zur Herstellung eines Traggliedes,1. Ner driving for producing an undercut cavity, in particular for producing a support member,
a) bei dem in einem Untergrund (5) ein im Wesentlichen geradlinig verlaufendes Loch (7) hergestellt wird,a) in which a substantially rectilinear hole (7) is made in a substrate (5),
b) bei dem in das Loch (7) eine Vorrichtung (9) mit einer rotierbarenb) in which in the hole (7) a device (9) with a rotatable
Welle (11) eingebracht wird, an welcher in einem vorbestimmten Arbeitsbereich (15) zumindest ein radial bewegliches Abtragelement (17) angeordnet ist, undShaft (11) is introduced, on which at least one radially movable removal element (17) is arranged in a predetermined working area (15), and
c) bei dem die Vorrichtung (9) in Rotation versetzt wird, wobei das wenigstens eine Abtragelement (17) infolge der Fliehkräfte eine Abtragung oder Lockerung des Materials des Untergrunds (5) in dem die Vorrichtung (9) im Arbeitsbereich (15) des flexiblen Elements (17) umgebenden Bereich bewirkt, undc) in which the device (9) is set in rotation, the at least one removal element (17), due to the centrifugal forces, removing or loosening the material of the substrate (5) in which the device (9) in the working area (15) of the flexible Elements (17) surrounding area causes, and
d) bei dem die Welle (11) an ihrem vorderen Ende einen Führungsbereich (13) aufweist, dessen Außendurchmesser im Wesentlichen dem Innendurchmesser des Lochs (7) im Untergrund (5) entspricht, und bei der der Außendurchmesser der Welle (11) geringer ist als der Innendurch- messer des Lochs (7), so dass in dem zwischen Welle (11) und Innen-d) in which the shaft (11) has at its front end a guide area (13), the outer diameter of which essentially corresponds to the inner diameter of the hole (7) in the substrate (5), and in which the outer diameter of the shaft (11) is smaller than the inside diameter of the hole (7), so that in the between the shaft (11) and the inside
S BLÄH ARTIKEL 19) 16S BLÄH ARTICLE 19) 16
wandung des Lochs entstehenden Ringraum die Abtragelemente (17) aumehmbar sind, undwall of the hole resulting annulus the removal elements (17) are removable, and
e) bei dem während des Abtragens und Lockerns oder nach dem Abtragen oder Lockern des Untergrunds (5) das abgetragene oder gelockertee) where the removed or loosened during the removal and loosening or after the removal or loosening of the subsoil (5)
Material mittels eines Spülmediums (21) zur Bildung eines hinterschnittenen Hohlraums (19) über den Ringraum ausgespült wird.Material is flushed out by means of a flushing medium (21) to form an undercut cavity (19) over the annular space.
2. Verfahren nach Anspruch 1, bei dem die Vorrichtung (9) zur Bildung eines hinterschnittenen Hohlraums (19) mit einer vorbestimmten axialen Ausdehnung, vorzugsweise während des Rotierens der Welle, um einen vorbestimmten Betrag in axialer Richtung bewegt wird.2. The method according to claim 1, wherein the device (9) for forming an undercut cavity (19) with a predetermined axial extent, preferably during the rotation of the shaft, is moved by a predetermined amount in the axial direction.
3. Verfahren nach Anspruch 2, bei dem die Vorrichtung (9) oszillierend in axi- aler Richtung bewegt wird.3. The method according to claim 2, wherein the device (9) is moved oscillating in the axial direction.
4. Verfahren nach einem der vorhergehenden Ansprüche, bei dem als Spülmedium (21) Luft oder ein erhärtender Baustoff, beispielsweise Zementmilch, verwendet wird.4. The method according to any one of the preceding claims, in which air or a hardening building material, for example cement milk, is used as the flushing medium (21).
5. Verfahren nach einem der vorhergehenden Ansprüche, bei dem das Spülmedium (21) über die Welle (11) der Vorrichtung (9) zugeführt wird und über Austrittsöffnungen (25) im Arbeitsbereich des wenigstens einen Abtragelements (17) austritt.5. The method according to any one of the preceding claims, wherein the flushing medium (21) via the shaft (11) of the device (9) is fed and exits via outlet openings (25) in the working area of the at least one removal element (17).
6. Vorrichtung zur Herstellung eines hinterschnittenen Hohlraums in einem Loch in einem Untergrund, insbesondere zur Herstellung eines Erdankers, nach dem Verfahren gemäß den Ansprüchen 1 bis 6, 176. Device for producing an undercut cavity in a hole in a subsurface, in particular for producing an earth anchor, according to the method according to claims 1 to 6, 17
a) mit einer rotierbaren Welle (11), welche in einem vorbestimmten Arbeitsbereich (25) wenigstens ein radial bewegliches Abtragelement (17) aufweist, welches so ausgebildet ist, dass infolge der bei Rotation wirkenden Fliehkräfte eine Abtragung oder Lockerung desa) with a rotatable shaft (11) which in a predetermined working area (25) has at least one radially movable removal element (17) which is designed such that, due to the centrifugal forces acting during rotation, removal or loosening of the
Materials des Untergrunds (5) in dem die Welle (11) im Arbeitsbereich des flexiblen Elements (17) umgebenden Bereich bewirkt, undMaterial of the base (5) in the area surrounding the shaft (11) in the working area of the flexible element (17), and
b) mit einem Führungsbereich (13) am vorderen Ende der Welle (11), dessen Außendurchmesser im Wesentlichen dem Innendurchmesser des Lochs (7) im Untergrund (5) entspricht, und bei der der Außendurchmesser der Welle (11) geringer ist als der Innendurchmesser des Lochs (7), so dass in dem zwischen Welle (11) und Innenwandung des Lochs entstehenden Ringraum die Abtragelemente (17) aufoehmbar sind und das abgetragene oder gelockerte Material ausgespült werden kann.b) with a guide area (13) at the front end of the shaft (11), the outer diameter of which corresponds essentially to the inner diameter of the hole (7) in the base (5), and in which the outer diameter of the shaft (11) is smaller than the inner diameter of the hole (7), so that the removal elements (17) can be received in the annular space created between the shaft (11) and the inner wall of the hole and the removed or loosened material can be rinsed out.
7. Vorrichtung nach Anspruch 6, bei der das Abtragelement (17) als flexibles Element, vorzugsweise als Stahlseil, ausgebildet ist.7. The device according to claim 6, wherein the removal element (17) is designed as a flexible element, preferably as a steel cable.
8. Vorrichtung nach Anspruch 6 oder 7, bei der an jedem Abtragelement (17) Bereiche oder Elemente (31) aus einem widerstandsfähigen Material vorgesehen sind.8. Apparatus according to claim 6 or 7, wherein areas or elements (31) made of a resistant material are provided on each ablation element (17).
9. Vorrichtung nach Anspruch 8, bei der die Abtragelemente (17) durch9. The device according to claim 8, wherein the removal elements (17) by
Stahlseile gebildet sind, die ein oder mehrere ringförmige Elemente (31) aus einem widerstandfahigen Material aufweisen, vorzugsweise in Form von diamantbesetzten Ringen.Steel cables are formed which have one or more ring-shaped elements (31) made of a resistant material, preferably in the form of rings set with diamonds.
G£ÄNDCRTES BLATT (ARTIKEL 19) 18G £ AND C RTES SHEET (ARTICLE 19) 18
10. Vorrichtung nach einem der Ansprüche 6 bis 9, bei der in der Welle (11) ein axial verlaufender Zuführkanal (23) für das Zufuhren des Spülmediums (21) vorgesehen ist, welcher ein oder mehrere Austrittsöffhungen (25) im Arbeitsbereich aufweist. 10. Device according to one of claims 6 to 9, in which in the shaft (11) an axially extending feed channel (23) for supplying the flushing medium (21) is provided, which has one or more outlet openings (25) in the working area.
PCT/DE2001/001422 2000-04-11 2001-04-11 Method and device for the production of back-cut cavities WO2001077445A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50101611T DE50101611D1 (en) 2000-04-11 2001-04-11 METHOD AND DEVICE FOR PRODUCING UNDERCUT CAVES
AT01933596T ATE261026T1 (en) 2000-04-11 2001-04-11 METHOD AND DEVICE FOR PRODUCING UNDERCUT CAVITIES
EP01933596A EP1272711B1 (en) 2000-04-11 2001-04-11 Method and device for the production of back-cut cavities

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10017894.4 2000-04-11
DE10017894A DE10017894A1 (en) 2000-04-11 2000-04-11 Method and device for producing undercut cavities, in particular for producing support members and nails

Publications (2)

Publication Number Publication Date
WO2001077445A1 WO2001077445A1 (en) 2001-10-18
WO2001077445B1 true WO2001077445B1 (en) 2002-05-23

Family

ID=7638305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/001422 WO2001077445A1 (en) 2000-04-11 2001-04-11 Method and device for the production of back-cut cavities

Country Status (4)

Country Link
EP (1) EP1272711B1 (en)
AT (1) ATE261026T1 (en)
DE (2) DE10017894A1 (en)
WO (1) WO2001077445A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720059A (en) * 2020-07-29 2020-09-29 河南理工大学 Flexible reaming device and method
CN111663903A (en) * 2020-07-29 2020-09-15 河南理工大学 Compound type reaming bit
CN111720058A (en) * 2020-07-29 2020-09-29 河南理工大学 Hydrodynamic reaming device and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176772A (en) * 1963-03-29 1965-04-06 Macgregor Robert Roy Device for removing detrital material from a liner, tubing and casing
GB1249143A (en) * 1968-12-13 1971-10-06 Cementation Co Ltd Improvements in or relating to a reamer bit
GB1427528A (en) * 1972-11-20 1976-03-10 Reader Sons Ltd E Device for making under-reams for ground anchors
DD148247A1 (en) * 1979-12-08 1981-05-13 Willi Jahr METHOD AND DEVICE FOR HOLLOW-MAKING A FUNDAMENTAL BODY
DE3716100A1 (en) 1987-05-14 1988-12-01 Ross Kurt G METHOD FOR SECURING SUPPORT WALLS
DE3728270A1 (en) * 1987-08-25 1989-06-01 Klemm Bohrtech Method and apparatus for constructing concrete piles in the ground
DE3743507A1 (en) * 1987-12-22 1989-07-06 Klemm Bohrtech Method and apparatus for producing piles in the earth
CH691128A5 (en) * 1995-10-23 2001-04-30 Vincenzo Sibilla A method of establishment of anchors.
DE19721361C2 (en) * 1997-05-22 2001-01-04 Zueblin Ag Method of making piles and piles made in this way
US6065551A (en) * 1998-04-17 2000-05-23 G & G Gas, Inc. Method and apparatus for rotary mining

Also Published As

Publication number Publication date
DE50101611D1 (en) 2004-04-08
EP1272711B1 (en) 2004-03-03
DE10017894A1 (en) 2001-10-25
ATE261026T1 (en) 2004-03-15
EP1272711A1 (en) 2003-01-08
WO2001077445A1 (en) 2001-10-18

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