EP0542692A1 - Dispositif pour l'ancrage d'éléments de construction dans le sol - Google Patents

Dispositif pour l'ancrage d'éléments de construction dans le sol Download PDF

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Publication number
EP0542692A1
EP0542692A1 EP92810880A EP92810880A EP0542692A1 EP 0542692 A1 EP0542692 A1 EP 0542692A1 EP 92810880 A EP92810880 A EP 92810880A EP 92810880 A EP92810880 A EP 92810880A EP 0542692 A1 EP0542692 A1 EP 0542692A1
Authority
EP
European Patent Office
Prior art keywords
ground
anchor
helical
pile
anchor pile
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
EP92810880A
Other languages
German (de)
English (en)
Other versions
EP0542692B1 (fr
Inventor
Richard Lawrence Moore
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.)
Isolink Inc
Original Assignee
Isolink Inc
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 Isolink Inc filed Critical Isolink Inc
Publication of EP0542692A1 publication Critical patent/EP0542692A1/fr
Application granted granted Critical
Publication of EP0542692B1 publication Critical patent/EP0542692B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/50—Anchored foundations
    • 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
    • E02D5/22—Piles
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
    • 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
    • E02D5/22—Piles
    • E02D5/56—Screw piles

Definitions

  • the invention relates to a device that allows components such as high-voltage pylons, building foundations, etc. to be anchored in the earth.
  • the device shown in Fig. 1, which is designated in its entirety by 1, has a helical anchor post 2, the post of which is made of a plastic of high strength, e.g. glass fiber reinforced Teflon, created body with a head 3 in one piece, for example made of a tough plastic.
  • the anchor post 2 has a thread 4 on its peripheral surface, to which a tip 5 is connected in the lower part.
  • the latter is preferably made of a hard material, e.g. Steel or hard metal, and is firmly connected to the rest of the pile part.
  • a drill tip can also be attached here, such as that used for rock drilling.
  • the head 3 has in its central part a recess 5 in the form of a hexagon hole and is on his Upper part covered by a cover plate 6, on its downward facing ring surface by two half rings 7.
  • Cover plate 6 and half rings 7 are preferably made of steel and are fastened in the material of the head 3 by means of screws 8 and 9, respectively.
  • the cover plate 6 has a hexagonal recess in the area of the hexagon hole 5, so that the hexagon of a turning device can be attached here.
  • a plurality of anchor bolts 10 are guided into the interior of the anchor post 2, which are provided with lateral anchors 11 at their ends projecting upward from the head 3.
  • the projecting ends of the anchor bolts 10 can also be formed with other coupling parts which, for example, allow the components to be anchored to be screwed on.
  • the anchor pile can consist of three sections 12, 13, 14, which are detachably connected to one another, for example, by threaded pins 15. While the two outer sections 12 and 14 are tapered, the central section 13 is designed in the form of a cylinder screw, so that the resistance to be overcome when the anchor pile is screwed into the ground is considerably reduced compared to a conical anchor pile over its entire length. As soon as section 14 has penetrated fully into the ground, the hole required for cylindrical section 13 is pre-drilled, so that no further significant resistance occurs until section 12 penetrates. Thanks to this three-part shape, the central, cylindrical section 13 can be different Keep lengths in stock and replace if necessary.
  • the section 14 can either consist entirely or only in its lower, tip-shaped part 5 made of a material that is harder than the base body, for example steel.
  • FIG. 3 shows a variant which is particularly suitable for anchoring heavy components in loose subsoil, for example sand.
  • a central blind hole 16 is drilled in the anchor post 2, which otherwise corresponds to the embodiment according to FIG the outlet channels 17 connect laterally.
  • This design allows, after screwing the anchor pile 2 into the ground from above in the direction of the arrow, a ground-strengthening agent, e.g. Pour in a synthetic resin or a mixture of cement and water (cement milk) that penetrates the soil surrounding the anchor post and, after hardening, forms a solidified zone Z, which gives the anchor post additional resistance to pulling out and sinking in or tipping over.
  • a ground-strengthening agent e.g. Pour in a synthetic resin or a mixture of cement and water (cement milk) that penetrates the soil surrounding the anchor post and, after hardening, forms a solidified zone Z, which gives the anchor post additional resistance to pulling out and sinking in or tipping over.
  • thread 4 which is in any case designed as a sharp thread with pointed flanks, can be adapted to the prevailing soil conditions.
  • variant a with a large flank angle ⁇ of 25 to 60 ° for hard soils
  • variant b with a small flank angle ⁇ between 0 and 25 ° for light, sandy soils will be selected.
  • the thread flanks can be provided with barbs 18, as shown by variant c in FIG. 4.
  • the anchor pole as shown in FIG. 5, in the form of a conically tapering Archimedean screw S which can be screwed into light, sandy soils.
  • the screw could be turned from a sheet of steel with a suitable cut and sharp side edges.
  • FIG. 6 An application of the device, as shown in particular in FIG. 1, is shown in FIG. 6.
  • a high-voltage pylon resting on four pillars 19 is supported on concrete elements 20, which in turn are anchored in the ground by means of anchor piles 21 according to the invention.
  • the connection of the anchor piles 21 to the concrete elements 20 is preferably carried out in that the anchor piles 21 are provided with branched anchors, as they were designated in FIG. 1 by 11, over which a concrete block 20 is then poured.
  • the pillars 19 can then be screwed or welded to the protruding heads of the anchors in a known manner.
  • Small anchoring devices can be screwed in by hand in loose soil, possibly using leverage. With larger dimensions of the anchor piles and heavier floors, they are screwed in mechanically.
  • a truck or tractor 22 can be used for this purpose, to whose transmission a rotary device 23 is connected via a PTO shaft. This engages with its hexagon in the head 24 of the anchor device 25 to be screwed in (FIG. 7).
  • the device according to the invention can be used, for example, in the embodiment shown in FIG. 3 for anchoring building foundations.
  • the devices designated 26 in FIG. 8 are first screwed into the ground until their heads 27 still protrude from the ground to a certain extent, whereupon the anchors 28 are attached. Now cement milk is introduced into the holes 29 from above, which soaks the surrounding soil and forms a zone Z of high strength after hardening.
  • the concrete foundation 30 is then poured over the anchor heads 27 and firmly anchored by the same.
  • the devices can be assembled with sufficient security even without adding cement milk.
  • the device described is characterized, as can be demonstrated by simple tests, by an extraordinarily high resistance to pulling out and sinking in the direction of the anchor pile axis, since the sum of the threaded flanks screwed into the ground forms a very large total area on which the anchor pile forms Resists displacement.
  • the device has a total length of between 0.5 to 5 m, for example, but in special cases it can even be considerably longer. In the case of extreme lengths, it may be advantageous to first predrill a core hole and then screw the device into the core hole, the diameter of which should be approximately half the average thread diameter.
  • FIGS. 9, 10 and 11 shows an anchor post 31 provided with a sharp thread 30 with a head plate 32.
  • the base body of the anchor post 31 has no tip and is provided with a central through hole 33 in this embodiment.
  • a probing rod 34 made of hardened steel has a probing tip 35, a rod-shaped central part 36, a driver 37 and a connecting piece 38.
  • the driver 37 of square cross-section is adapted in shape and size to the upper section of the through hole 33, so that the probing rod 34 can be inserted into the through hole 33 until its tip 35 protrudes from the lower opening of the through hole 33 and thus the hard tip of the anchor pile.
  • the probing rod 34 is first pushed downwards into the ground in order to determine whether the selected location is suitable or has been criss-crossed with rock. If the probing rod 34 can be pushed down without difficulty, it is pulled out, inserted into the anchor post 31 and connected to a rotating device on the connecting part 38. After the anchor post has been inserted, the probing rod can either be removed or can remain in the ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
EP92810880A 1991-11-14 1992-11-13 Dispositif pour l'ancrage d'éléments de construction dans le sol Expired - Lifetime EP0542692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3319/91 1991-11-14
CH331991 1991-11-14

Publications (2)

Publication Number Publication Date
EP0542692A1 true EP0542692A1 (fr) 1993-05-19
EP0542692B1 EP0542692B1 (fr) 1997-02-19

Family

ID=4253420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810880A Expired - Lifetime EP0542692B1 (fr) 1991-11-14 1992-11-13 Dispositif pour l'ancrage d'éléments de construction dans le sol

Country Status (3)

Country Link
EP (1) EP0542692B1 (fr)
AT (1) ATE149052T1 (fr)
DE (1) DE59208049D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407883B (de) * 1999-04-26 2001-07-25 Batiwe Beteiligungsgesellschaf Fundament für die verankerung von pflöcken, pfählen, stangen od.dgl.
GB2362672A (en) * 2000-05-22 2001-11-28 Laing Rail Ltd Conical foundation pile having a screw thread for urging the pile into the ground
FR2894603A1 (fr) * 2005-12-14 2007-06-15 Jean Marie Renovation Sarl Sar Goujon d'assemblage de micropieux et micropieux comprenant de tels goujons
CN102667002A (zh) * 2009-12-22 2012-09-12 澳洲五矿有限公司 螺旋桩
WO2013102889A3 (fr) * 2012-01-05 2014-04-24 Atlantech S.R.L. Équipement de fondation pour un poteau, en particulier pour un poteau d'éclairage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940938A (en) * 1930-06-23 1933-12-26 Albert B Chance Earth anchor
US3636718A (en) * 1970-03-16 1972-01-25 Borg Warner Water jetted piling
US3842608A (en) * 1972-11-28 1974-10-22 L Turzillo Method and means for installing load bearing piles in situ
FR2369388A1 (fr) * 1976-11-02 1978-05-26 Gillen William F Pieux a vis en beton, moules d'avance
US4110989A (en) * 1977-05-16 1978-09-05 Thomas Selkirk Piling fabricated from synthetic material
US4621950A (en) * 1983-01-18 1986-11-11 Electric Power Research Institute Techniques for establishing inground support footings and for strengthening and stabilizing the soil at inground locations

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940938A (en) * 1930-06-23 1933-12-26 Albert B Chance Earth anchor
US3636718A (en) * 1970-03-16 1972-01-25 Borg Warner Water jetted piling
US3842608A (en) * 1972-11-28 1974-10-22 L Turzillo Method and means for installing load bearing piles in situ
FR2369388A1 (fr) * 1976-11-02 1978-05-26 Gillen William F Pieux a vis en beton, moules d'avance
US4110989A (en) * 1977-05-16 1978-09-05 Thomas Selkirk Piling fabricated from synthetic material
US4621950A (en) * 1983-01-18 1986-11-11 Electric Power Research Institute Techniques for establishing inground support footings and for strengthening and stabilizing the soil at inground locations

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407883B (de) * 1999-04-26 2001-07-25 Batiwe Beteiligungsgesellschaf Fundament für die verankerung von pflöcken, pfählen, stangen od.dgl.
GB2362672A (en) * 2000-05-22 2001-11-28 Laing Rail Ltd Conical foundation pile having a screw thread for urging the pile into the ground
WO2001090489A1 (fr) * 2000-05-22 2001-11-29 Laing Rail Limited Element de support de fondation
FR2894603A1 (fr) * 2005-12-14 2007-06-15 Jean Marie Renovation Sarl Sar Goujon d'assemblage de micropieux et micropieux comprenant de tels goujons
CN102667002A (zh) * 2009-12-22 2012-09-12 澳洲五矿有限公司 螺旋桩
AU2010336015B2 (en) * 2009-12-22 2015-08-27 Minmetals Australia Pty Ltd Screw piles
WO2013102889A3 (fr) * 2012-01-05 2014-04-24 Atlantech S.R.L. Équipement de fondation pour un poteau, en particulier pour un poteau d'éclairage
US9260832B2 (en) 2012-01-05 2016-02-16 Atlantech S.R.L. Foundation equipment for a pole in particular for a lighting pole

Also Published As

Publication number Publication date
DE59208049D1 (de) 1997-03-27
EP0542692B1 (fr) 1997-02-19
ATE149052T1 (de) 1997-03-15

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