NON-DIGGING PIPELINE CONSTRUCTION METHOD USING EXISTING PIPELINE

摘要

A non-excavation type pipeline installation method using the existing pipeline is provided to minimize the time and cost required for installing a new pipeline by installing a new pipeline by excavating a partial section between manholes, and to minimize the occurrence of dust and noise by having no connection with traffic control by construction. A non-excavation type pipeline installation method using the existing pipeline comprises the steps of excavating the ground as much as the length of one pipe forming the existing pipeline(10) between manholes, removing pipe in the excavated part, cutting out the lower part of the existing pipeline using a cutting device, expanding the existing pipeline using an expansion device, inserting a support member(20) to a cut-out part(11) of the existing pipeline, and inserting a pipe to the inside of the existing pipeline, thereby forming a new pipeline(30).