trench jack definition

trench jack means a screw or hydraulic jack used as a brace for shoring. (« vérin pour tranchée »)
trench jack means a screw or hydraulic jack used as a brace in a trench shoring system.
trench jack means a screw or hydraulic jack used as a brace for shoring.

More Definitions of trench jack

trench jack means screw or hydraulic type jacks used as cross bracing in a trench shoring system.