Cable bolt monitoring device

Details Cable bolt monitoring device Cable bolt monitoring device

1993-02-08

1994-02-08

Yasich, Daniel M.

Signals and indicators

Indicators

Stress type

33 1, 73784, 411 8, F16B 3102, E02D 3300

Patent

active

052841073

ABSTRACT:
A monitoring unit for installation on a cable bolt comprises a tube designed to fit within a cable bolt hole and having a collar at one end thereof, a cable bolt adapted to be grouted in the rock at the centre of the tube, a base plate placed tightly against the tube collar adjacent the rock face, a centralizer sleeve designed to fit over the cable bolt to keep the cable centralized within the base plate and tube, an elongated measuring plate having a centre hole for insertion of the cable bolt to fit tightly against the base plate and a groove cut at equal distances from each side of the centre hole for allowing the measuring plate to bend if the rock moves with respect to the cable bolt, and a cable clamp for fixing the measuring plate tight against the base plate.

REFERENCES:
patent: 3150557 (1964-09-01), Brown
patent: 3478523 (1969-11-01), Reusser et al.
patent: 4648753 (1987-03-01), Stephen
patent: 4662795 (1987-05-01), Clark et al.
patent: 4971493 (1990-11-01), Herbst et al.
patent: 5185595 (1993-02-01), Friesen

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