society > occupation and work > industry > earth-moving, etc. > [verb (transitive)] > line excavation (3)
transitive. To face or build up (a ditch) with stone, etc.
To furnish with timber. (See also timbered, adj.) To put in or apply timber to support the roof of a mine or working, the sides of a shaft or a…
To line (a well or other excavation) with stone, brick or other material. Also with up.