Method of rock bolting and tube-formed expansion bolt

Details Method of rock bolting and tube-formed expansion bolt Method of rock bolting and tube-formed expansion bolt

1980-03-06

1984-07-10

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

411 19, E21D 2000

Patent

active

044590679

ABSTRACT:
A tube-formed rockbolt is partly circular in its cross-section and opposite its circular portion (12) it has a deep depression (16-18). Its ends are sealed and its outer end has a hole (44, 45) or a fitting (24) through which the bolt can be supplied with high pressure water that expands the tube to anchor it in the borehole.

REFERENCES:
patent: 1802270 (1931-04-01), Rawlings
patent: 2015081 (1935-09-01), McElhany et al.
patent: 2324520 (1943-07-01), Lamson
patent: 2342732 (1944-02-01), Gudmundsen
patent: 2696137 (1954-12-01), Thomas et al.
patent: 3148577 (1964-09-01), Parsons
patent: 3349567 (1967-10-01), Munn
patent: 3425311 (1969-02-01), Levy
patent: 3568450 (1971-03-01), Whiting
patent: 3665719 (1972-05-01), Whiting
patent: 3922867 (1975-12-01), Scott
patent: 3977068 (1976-08-01), Krips
patent: 4012913 (1977-03-01), Scott
patent: 4012913 (1977-03-01), Scott
patent: 4125937 (1978-11-01), Brown et al.

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