supported face

用法例句

This paper introduces the construction methods of adopting the full bolting technique in the tunneling without coal pillar,makes comparison of the full bolting technique with the shed supporting technique,and points out that the full bolting technique has the advantages of lower supporting cost,shorter supporting time,lower labor strength and faster tunneling speed.

介绍了掘进巷道过无炭柱采用全锚支护的施工方法,对全锚支护和工棚支护进行了对比,指出全锚支护具有支护成本低、支护时间短、劳动强度低、掘进速度快等优点。