SLAB TOP-DOWN METHOD OF UNDERGROUND CONSTRUCTION

摘要

PURPOSE: A reverse direction construction method of an underground structure is provided to reduce production times and costs by the formation of a slab on concrete. CONSTITUTION: A reverse direction construction method of an underground structure comprises following steps. An underground continuous wall is formed on an underground position where an underground outer wall will be formed, so that an underground outer line may be formed(S10). Multiple center piles are built in the surface divided by the underground continuous wall, so that a base frame of a post is formed(S20). Two or more slabs forming the bottom surface of each under layer are laminated to move along multiple center piles(S30).