FR2274740A1 - Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating - Google Patents

Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating

Info

Publication number
FR2274740A1
FR2274740A1 FR7520220A FR7520220A FR2274740A1 FR 2274740 A1 FR2274740 A1 FR 2274740A1 FR 7520220 A FR7520220 A FR 7520220A FR 7520220 A FR7520220 A FR 7520220A FR 2274740 A1 FR2274740 A1 FR 2274740A1
Authority
FR
France
Prior art keywords
rod
anchor block
tie
heating
rupture zone
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
FR7520220A
Other languages
French (fr)
Other versions
FR2274740B3 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7520220A priority Critical patent/FR2274740A1/en
Publication of FR2274740A1 publication Critical patent/FR2274740A1/en
Application granted granted Critical
Publication of FR2274740B3 publication Critical patent/FR2274740B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • 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
    • E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable

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)

Abstract

A steel anchorage rod (2, 6) between sheet pile walls or other retaining walls and embedded concrete anchor blocks (4), is simply removed after useful life, by forming a rupture zone in the tie rod adjacent to the anchor block, so that a pull applied to the rod causes rupture at this point and rod extraction. Applicable to the type of tie (2) sheat ed in a plastic tube (3) between the wall and the anchor block (4), the process uses the application of heat to diminuish the steel strength characteristics. A tie coupling sleeve (7) containing thermite powder (8) can be used, ignited via cable (10) and fuse (9).
FR7520220A 1975-06-27 1975-06-27 Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating Granted FR2274740A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7520220A FR2274740A1 (en) 1975-06-27 1975-06-27 Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7520220A FR2274740A1 (en) 1975-06-27 1975-06-27 Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating

Publications (2)

Publication Number Publication Date
FR2274740A1 true FR2274740A1 (en) 1976-01-09
FR2274740B3 FR2274740B3 (en) 1979-02-23

Family

ID=9157171

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520220A Granted FR2274740A1 (en) 1975-06-27 1975-06-27 Extraction method for steel rod ground anchors - rupture zone in rod adjacent to anchor block is formed by heating

Country Status (1)

Country Link
FR (1) FR2274740A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400350A1 (en) * 1983-01-13 1984-07-19 Dyckerhoff & Widmann AG, 8000 München METHOD FOR REMOVING THE FREE PART OF THE TENSION MEMBER OF A PRELOADED PRESSURE ANCHOR
FR2570414A1 (en) * 1984-09-20 1986-03-21 Freyssinet Int Stup Improvements to joints for multi-stranded anchoring cables
EP0583725A1 (en) * 1992-08-17 1994-02-23 Dyckerhoff & Widmann Aktiengesellschaft Device for separating the tension rod of a soil anchor at a provided location
DE19500091C1 (en) * 1995-01-04 1996-04-04 Dyckerhoff & Widmann Ag Predetermined rupture position prodn. on tensile member of insert anchor
NL1015346C2 (en) * 2000-05-31 2001-12-03 Visser & Smit Bouw Bv Removal method for free anchor length of grouted anchor sunk into the ground, involves heating free anchor length to form point of weakness
WO2011116483A3 (en) * 2010-03-25 2012-03-08 Stahlton Ag Device for an at least partially removable anchor and method for at least partially removing an anchor
CN105064357A (en) * 2015-08-10 2015-11-18 徐传召 Embedding type anchoring device and anchoring method for pre-stressed anchor cable

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400350A1 (en) * 1983-01-13 1984-07-19 Dyckerhoff & Widmann AG, 8000 München METHOD FOR REMOVING THE FREE PART OF THE TENSION MEMBER OF A PRELOADED PRESSURE ANCHOR
FR2570414A1 (en) * 1984-09-20 1986-03-21 Freyssinet Int Stup Improvements to joints for multi-stranded anchoring cables
EP0583725A1 (en) * 1992-08-17 1994-02-23 Dyckerhoff & Widmann Aktiengesellschaft Device for separating the tension rod of a soil anchor at a provided location
US5389765A (en) * 1992-08-17 1995-02-14 Dyckerhoff & Widmann Aktiengesellschaft Arrangement for severing the tension member of a soil anchor at a predetermined location by induction heating
DE19500091C1 (en) * 1995-01-04 1996-04-04 Dyckerhoff & Widmann Ag Predetermined rupture position prodn. on tensile member of insert anchor
EP0721030A1 (en) * 1995-01-04 1996-07-10 DYCKERHOFF & WIDMANN AG Method to make a rupture zone in a tension member for a prestressed ground anchor
US5707181A (en) * 1995-01-04 1998-01-13 Dyckerhoff & Widmann Aktiengesellschaft Method of producing an intended breaking point in a tension member for a soil anchor
NL1015346C2 (en) * 2000-05-31 2001-12-03 Visser & Smit Bouw Bv Removal method for free anchor length of grouted anchor sunk into the ground, involves heating free anchor length to form point of weakness
WO2011116483A3 (en) * 2010-03-25 2012-03-08 Stahlton Ag Device for an at least partially removable anchor and method for at least partially removing an anchor
EP2998447A1 (en) * 2010-03-25 2016-03-23 Stahlton AG Method for at least partially removing an anchor
CN105064357A (en) * 2015-08-10 2015-11-18 徐传召 Embedding type anchoring device and anchoring method for pre-stressed anchor cable

Also Published As

Publication number Publication date
FR2274740B3 (en) 1979-02-23

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Legal Events

Date Code Title Description
ST Notification of lapse