Method and an apparatus for providing a grouted anchorage agains

Details Method and an apparatus for providing a grouted anchorage agains Method and an apparatus for providing a grouted anchorage agains

1979-03-08

1981-03-03

Novosad, Stephen J.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405266, 405269, E02D 574, E21D 2002

Patent

active

042537819

ABSTRACT:
A method is disclosed of providing a grouted anchorage in a base formation. A tube having a drill member at its forward end is driven into the base formation through an opening in a wall. An anchor rod is introduced once the desired depth has been reached, liquid mortar is forced through the tube to the forward end of the tube and the tube is withdrawn from the hole. The forward end of the tube is continuously kept closed, sealed from penetration by water. During the initial withdrawal of the tube a corresponding amount of liquid mortar is forced therethrough, the anchor rod being pressed against the drill tip which remains in the base formation.

REFERENCES:
patent: 3494133 (1970-02-01), Ahlgren et al.
patent: 3608318 (1971-09-01), Levy et al.
patent: 3623330 (1971-11-01), Nakade et al.
patent: 3665717 (1972-05-01), Sweeney et al.
patent: 3815368 (1974-06-01), Turzillo
patent: 3878686 (1975-04-01), Hageman et al.
patent: 3973409 (1976-08-01), Asayama

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