WO2001077445A1 - Method and device for the production of back-cut cavities - Google Patents
Method and device for the production of back-cut cavities Download PDFInfo
- Publication number
- WO2001077445A1 WO2001077445A1 PCT/DE2001/001422 DE0101422W WO0177445A1 WO 2001077445 A1 WO2001077445 A1 WO 2001077445A1 DE 0101422 W DE0101422 W DE 0101422W WO 0177445 A1 WO0177445 A1 WO 0177445A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- elements
- hole
- producing
- working area
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000011010 flushing procedure Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000011796 hollow space material Substances 0.000 claims description 5
- 239000004566 building material Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 7
- 238000002679 ablation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
Definitions
- Load distribution cavity accumulated water and the soil dissolved in it is sucked off by means of a suction hose.
- An anchor hole in the ground is then rinsed out in the extension of the hole.
- a reinforcing bar (needle anchor) is then inserted through the hole, the reinforcing bar, for example, being a ribbed reinforcing steel.
- the reinforcement bar is held in the center of the anchor hole by means of a spacer and extends into the hole in the retaining wall to be fastened. Finally, it is preferably through another, which extends obliquely downwards into the load distribution cavity Filling hole cement material introduced, which completely fills the anchor hole, the load distribution cavity and the hole in the retaining wall.
- the object of this invention is to provide a method for producing an undercut cavity, in particular for producing an earth anchor, which enables the production of a cavity with certain dimensions (within permissible tolerances) in a simple manner, and in which prevents the soil surrounding the cavity from softening. Furthermore, the invention is based on the object of creating a device for producing such an undercut cavity.
- the removal element can consist of a rigid element which is arranged pivotably on the shaft, the pivot axis being arranged essentially perpendicular to the longitudinal axis.
- the essentially rigid removal element With its radially outer region, causing the material of the subsoil to be loosened or removed.
- the removal elements as such can be formed by steel cables that have sufficient flexibility.
- the steel cables can be dimensioned and attached to the shaft in such a way that the device is inserted into the shaft
- an axially extending feed channel for feeding the flushing medium is in the shaft provided which has one or more outlet openings in the areas of fastening the removal elements.
- the device preferably has a guide area at the front end of the shaft, the outer diameter of which is essentially that
- an undercut cavity is created by the device, i.e. the shaft with the removal elements arranged thereon is introduced into a hole, the undercut
- Cavity is generated by a rotation of the shaft and the radial ablation or loosening forces generated thereby by means of the ablation elements.
- the removed or loosened material is rinsed out using a rinsing medium.
- a hardening building material for example cement milk or the like, is used as the rinsing medium. This also does not result in any unnecessary wetting of the substrate surrounding the borehole or the undercut cavity and, in addition, a high discharge effect is achieved due to the higher viscosity of such a flushing medium. A complete discharge of the loosened or removed material is at least not necessary if that
- Fig. 1 shows a schematic section through a foundation body or a
- FIG. 2 shows an illustration similar to FIG. 1 in the phase of rotation of the device according to the invention for producing an undercut cavity
- Fig. 3 is an illustration similar to Fig. 1, the inventive
- FIGS. 1 to 3 shows a schematic illustration of the device according to the invention according to FIGS. 1 to 3.
- the device 9 is explained in more detail below with reference to FIG. 4:
- the device 9 comprises a shaft 11 which has a head or guide area 13 in its front area, the outer diameter of which essentially corresponds to the inner diameter of the borehole 7. This results in the device 9 being centered in the borehole 7, although the rear region of the shaft 11 has a smaller outer diameter than the guide region 13.
- a plurality of removal elements 17 are arranged in a working area 15 of the shaft 11, of which only six elements are shown in FIG. 4.
- FIG. 1 shows the device 9 in two phases of the insertion process into the borehole 7: to the left of the longitudinal axis of the device 9, the phase is shown in which the device 9 is in a position in which the removal elements 17 are still completely outside of borehole 7.
- the removal elements 17 are shown stretched, whereby in practice the removal elements do not of course have to extend completely radially outwards in this phase, but may lie correspondingly curved due to their own weight.
- Half of the axis of symmetry of the device 9 is drawn in a position in which the
- the device 9 has already been completely inserted into the borehole 7, i.e. the working area 15 was pushed into the borehole until it is in an area in which the undercut cavity 19 is to be created.
- the removed or loosened material of the surrounding subsurface is rinsed out of the annular space between the shaft 11 and the inner wall of the borehole 7 by means of a rinsing medium 21.
- the outlet openings 25 are formed in the wall 27 of the 5 hollow shaft 11 such that the longitudinal axis of the outlet openings 25 in
- the elements 31 made of resistant material can be ring-shaped elements which are pressed onto a stop element 17 designed as a steel cable.
- a stop element 17 designed as a steel cable.
- diamond-set links of a stone saw chain can be used.
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
Description
Claims
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 true WO2001077445A1 (en) | 2001-10-18 |
WO2001077445B1 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) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN111720059A (en) * | 2020-07-29 | 2020-09-29 | 河南理工大学 | Flexible reaming device and method |
Citations (4)
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 |
GB1427528A (en) * | 1972-11-20 | 1976-03-10 | Reader Sons Ltd E | Device for making under-reams for ground anchors |
EP0290941B1 (en) | 1987-05-14 | 1990-12-12 | Kurt G. Dipl.-Ing. Ross | Method for securing retaining walls |
WO1999054586A1 (en) * | 1998-04-17 | 1999-10-28 | G & G Gas, Inc. | Method and apparatus for rotary mining |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1249143A (en) * | 1968-12-13 | 1971-10-06 | Cementation Co Ltd | Improvements in or relating to a reamer bit |
DD148247A1 (en) * | 1979-12-08 | 1981-05-13 | Willi Jahr | METHOD AND DEVICE FOR HOLLOW-MAKING A FUNDAMENTAL BODY |
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 |
-
2000
- 2000-04-11 DE DE10017894A patent/DE10017894A1/en not_active Withdrawn
-
2001
- 2001-04-11 AT AT01933596T patent/ATE261026T1/en active
- 2001-04-11 DE DE50101611T patent/DE50101611D1/en not_active Expired - Lifetime
- 2001-04-11 WO PCT/DE2001/001422 patent/WO2001077445A1/en active IP Right Grant
- 2001-04-11 EP EP01933596A patent/EP1272711B1/en not_active Expired - Lifetime
Patent Citations (4)
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 |
GB1427528A (en) * | 1972-11-20 | 1976-03-10 | Reader Sons Ltd E | Device for making under-reams for ground anchors |
EP0290941B1 (en) | 1987-05-14 | 1990-12-12 | Kurt G. Dipl.-Ing. Ross | Method for securing retaining walls |
WO1999054586A1 (en) * | 1998-04-17 | 1999-10-28 | G & G Gas, Inc. | Method and apparatus for rotary mining |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN111720059A (en) * | 2020-07-29 | 2020-09-29 | 河南理工大学 | Flexible reaming device and method |
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 |
WO2001077445B1 (en) | 2002-05-23 |
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