CIP USE OF UNDERGROUND MOTORWAYS CONSTRUCTION WORK METHOD

摘要

PURPOSE: An underground roadway construction method using a CIP(Cast-In-Place Pile) is provided to minimize restriction in passage of vehicles in an intersection and reduce the construction period for an underground roadway. CONSTITUTION: An underground roadway construction method using a CIP is as follows. A CIP bulb constituting side walls and center walls or columns is formed. One upper side of a roadway is excavated and an upper slab(140) is installed. The other upper side of the roadway is excavated and an upper slab(150) is installed. The lower sides of the upper slabs are excavated and a lower slab(170) and partial inner wall slabs are installed on the bottom. A strut(160) is removed and the remaining inner wall slabs connected to the upper slabs are installed. Inner walls or column wall reinforcement for finishing, and interior tiles are constructed, and asphalt concrete is covered over the lower slabs.