Tie-back anchor components and method for a shoring system

Details Tie-back anchor components and method for a shoring system Tie-back anchor components and method for a shoring system

1975-06-12

1976-12-28

Gilliam, Paul R.

61 5362, E02D 534

Patent

active

039993914

ABSTRACT:
A tie-back anchor and the method for use thereof in connection with shoring systems wherein support for upstanding shoring components is provided by a plurality of tension cables or tendons placed outwardly of an excavation into undisturbed earth structures. A hollow tubular element having outwardly extending discontinuous helix formed flight elements is augered into place. A plurality of load transfer pins or bolts extend inwardly within the tube structure to positions of potential interference with the tension cables and the longitudinally separated bushings locked on separate cables. After placement of the tube structure and loose cables, a high strength grout is introduced into the tube whereby subsequent tension loadings on the cables and bushings is transmitted by the grout to the interfering load transfer pins, the tube structure, the helix flights thereof and the supporting earth structure. Pretensioning components inclusive of tapered bushings and wedge locks are used to transfer the developed tension loadings to walers, soldier beams and the sheeting of the shoring system.

REFERENCES:
patent: 3226933 (1966-01-01), White
patent: 3815368 (1974-06-01), Turzillo

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