full-face tunneling

full-face tunneling

[′fu̇l ‚fās ′tən·əl·iŋ]
(civil engineering)
A system of tunneling in which the tunnel opening is enlarged to desired diameter before extension of the tunnel face.
References in periodicals archive ?
The first commercial application of the mini-disc cutters on a hard-rock machine has been on the Iseki Discmole small-diameter full-face tunneling machine designed to cut rock up to 50K lb\[in.
Monopol also has roadway development with full-face tunneling machines and refrigeration capacities of approximately 2 Mw.