Base Track

See Master TrackThe rear most track section..

Batter

The slope or inclination from a vertical plane, as the face or back of a wall.

Bedding

A prepared layer of material below a pipeline to ensure uniform support.

Belly Pans

Shims or other steel plates added to the bottom of the MTBM to adjust the machine’s location within the excavation. Also known as belly plates.

Benching or Bench

The floor of a manhole into which the channel is set; the bench is raised so that it can drain to the channel.