Definitions for "Trenching"
The process of locating the position of a dyke by digging trenches perpendicular to its expected strike.
Trenching refers to prospecting in which subsurface strata are exposed by digging pits across the long dimensions or strike of a lode.
making elongated open-air excavations for the purposes of mapping and sampling.
burying of offshore or onshore pipelines.
Keywords:  conventional, cut, open, see
See open cut or conventional trenching.