TUNNEL EXCAVATION METHOD, CONNECTING ONE OR MORE GUIDE PIPES TO FRONT OF BURIED PIPE

摘要

PURPOSE: A tunnel excavation method is provided to make precise and safe construction possible by connecting one or more guide pipes to the front of a buried pipe. CONSTITUTION: The tunnel excavation method comprises the steps of: after pit-excavating a propulsion base(1), installing a pressure jack(10) in the propulsion base(1); perforating pilot holes along a pipe laying route using a drill and connecting at least one or more guide pipes(51) to the front of a buried pipe(30) in a line, placing a buried pipe(30) together with the guide pipe(51) along the pilot hole in order using the pressure jack(10) and removing soils flew in by placing the pipe to the outside.