UNDERGROUND CAVITY FILLING CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a filling construction method using a stone powder body as a filler by paying attention to the stone powder body being excellent in handling and having high fluidity. SOLUTION: After filling stone powder or a stone powder body mainly composed of the stone powder in an underground cavity, water is added to this filled stone powder body to be solidified. The filled stone powder body is naturally solidified by moisture included in underground water or air.