Feed Line

Pipeline that transports drilling fluid from the slurry separation plant to the face of the MTBM. Also known as an inlet line or charge line.

Feet

US customary unit for measuring length. One foot equals 304.8 mm; or 0.3048 meters. (abbrev. ft).

Feet Per Second

US customary unit for velocity. One foot per second equals 304.8 millimeters per second; or 0.3048 meters per second. (abbrev. ft/s).

Ferro-cement

A rehabilitation technique that employs steel fabric mesh, usually in multiple layers but with the maximum mesh diameter not exceeding 2 mm (1/8 inch), which is fixed to the existing sewer and then covered in high strength grout, either placed in situ by man entry work to form a structural lining or pre-formed into segments for later installation.