👉 Underfall is a term used in the field of engineering and construction to describe the process of dropping materials from a crane or other hoisting device onto a work site. It involves using the hoist to lower a load or material into a designated area, typically at the base of a building or structure. The term is often used in conjunction with the words "rise" (to raise) and "fall" (to drop), as it describes the movement of materials from one location to another. Under
