METHOD FOR CONTSTRUCTING PIPE PROPULSION STRUCTURE USING PRESTRESS AND PIPE PROPULSION STRUCTURE CONSTRUCTED THEREBY

摘要

PURPOSE: A construction method of a pipe propulsion structure using prestress and a pipe propulsion structure using the same are provided to prevent a pipe propulsion structure from longitudinally sagging by applying tensile force to both longitudinal ends of steel wires. CONSTITUTION: A construction method of a pipe propulsion structure using prestress is as follows. A propulsion pipe(103) is installed in the ground. A sheath pipe(102) is inserted into the propulsion pipe and penetrates through the propulsion pipe. Concrete is placed inside the propulsion pipe. Multiple steel wires(101) are inserted into the sheath pipe and penetrate the sheath pipe. Tensile force is applied to both longitudinal ends of the steel wires, and the deflection of the steel wires is fixed.