Method of rock bolting and rock bolt

Details Method of rock bolting and rock bolt Method of rock bolting and rock bolt

1982-10-14

1985-04-16

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

411 19, 405288, E21D 2000

Patent

active

045112894

ABSTRACT:
A rock bolt comprises an inflatable tube (11) which has a deep longitudinal depression (12). A wire coil (20) is mounted on the tube before the bolt is inserted in the borehole. When pressurized by high pressure water the tube (11) expands and clamps the coil (20) between itself and the borehole and the tube (11) is thereby permanently anchored in the borehole. The depression (12) develops during the expansion but the coil (20) prevents full expansion of the tube (11).

REFERENCES:
patent: 768283 (1904-08-01), Jenkins
patent: 2690693 (1954-10-01), Campbell
patent: 2950602 (1960-08-01), Lang
patent: 3250170 (1966-05-01), Siegel
patent: 3349567 (1967-10-01), Munn
patent: 4098087 (1978-07-01), Swain

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