Method and arrangement for stressing a staggered anchorage

Details Method and arrangement for stressing a staggered anchorage Method and arrangement for stressing a staggered anchorage

2006-03-10

2009-06-30

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

C052S223100, C405S302200

Reexamination Certificate

active

07553108

ABSTRACT:
A method and apparatus for tensioning a staggered anchorage comprised of a plurality of tension members, which are anchored in a bore hole at various depths, thus having different free steel lengths. For each staggered anchorage, each tension member is tensioned up to a predetermined maximal load and is then subsequently adjusted to the working load. To achieve a consistent elongation reserve of the individual tension member and thus to increase the security of a staggered anchorage, the staggered anchorage is adjusted to the working load, all tension members are adjusted to a reduced elongation (ΔIw) by a uniform elongation difference (ΔImax−ΔIw) relative to the respective elongation (ΔImax) of the predetermined maximal load. An arrangement for performing the method has a single tensioning plane, which is force interconnected with defined locking elements that are arranged on tension members in clamping planes.

REFERENCES:
patent: 3412511 (1968-11-01), Dietrich
patent: 3647184 (1972-03-01), Vanderhurst et al.
patent: 3658296 (1972-04-01), Yegge
patent: 3801067 (1974-04-01), Shorter
patent: 3844023 (1974-10-01), Surribas et al.
patent: 4819393 (1989-04-01), Augoyard
patent: 5596854 (1997-01-01), Crigler
patent: 5809710 (1998-09-01), Jungwirth et al.
patent: 6571518 (2003-06-01), Barley
patent: 2003/0099518 (2003-05-01), Barley
patent: 23 08 216 (1974-08-01), None
patent: 41 38 470 (1993-05-01), None
patent: 195 35 700 (1997-04-01), None
patent: 195 36 701 (1997-04-01), None
patent: 100 37 516 (2002-01-01), None
patent: 0 356 215 (1990-02-01), None

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