Receiving Pit

(1) See exit pit. (2) An opening in the earth located at the expected exit of the cutting head or casing. (3) Come out hole, come out pit; The pit that is dug at the end of the bore, opposite the jacking pit.

Reception Shaft

Excavation into which the microtunneling equipment is driven and recovered.

Reception/Exit Shaft/Pit

Excavation into which trenchless technology equipment is driven and recovered following the installation of the product pipe, conduit, or cable.

Reduction

Gain of electrons, as when copper is electro-plated on steel from a copper sulfate solution (opposite of “Oxidation”).