Abstract：HPDE (high-density polyethylene) spiral pipe has a broad application prospect for its unique properties. In a test on its application in soft soil area of Shanghai，the loading scheme simulates the load situation of practical projects. The mechanics-deformation patterns of HPDE spiral pipe and pipe-soil interaction mechanisms in various experimental stages are analyzed based on the test data and properties of soft soil in Shanghai，which offeres the theoretical basis for its application in engineering field. Some suggestions and technical requirements are provided for design and construction in Shanghai in aspects such as laying style，rational channel dimension，and thickness and density of backfill.
