Tunneling machine

Details Tunneling machine Tunneling machine

1985-08-01

1986-09-09

Husar, Cornelius J.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

405146, 405303, 299 33, E21D 2000

Patent

active

046105735

ABSTRACT:
A tunneling machine according to the invention has a mobile and automotive base movable on the ground horizontally and longitudinally toward a face to be cut away, a turntable on the base defining an upright pivot axis and having a main support pivotal about the axis on the base, an arm having an inner end pivotal about a horizontal axis on the main support and having an outer end, and a cutter on the outer end of the arm. A conveyor having an intake on the ground between the base and the cutter and extends back away from the face, normally through the base. Actuators connected between the cutter, arm, support, conveyor, and base move the cutter over the face to cut rock therefrom and convey the cut rock back away from the face. A drilling apparatus including a drilling unit for making a hole extending along a bore axis and another unit for setting a rockbolt in the hole thus drilled is carried on the arm and engageable with the ceiling immediately adjacent the face. The cutter is engageable with the floor to support the arm thereon while the drilling apparatus is boring in the ceiling.

REFERENCES:
patent: 4098538 (1978-07-01), Hilton
patent: 4199193 (1980-04-01), Pamron et al.
patent: 4226476 (1980-10-01), Fairchild et al.
patent: 4297057 (1981-10-01), O'Neil

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