A METHOD FOR CONSTRUTING WATERPROOFING SYSTEM OF TUNEL AND PIPE

摘要

A construction method of a tunnel water treatment system and a water conveyance pipe used for the construction method are provided to heighten water conveyance efficiency by guiding leaking water using a water conveyance pipe and discharging to the outside. A construction method of a tunnel water treatment system comprises the steps of: constructing a grouting layer(10) on a tunnel excavation surface(1) to reinforce the surface of the tunnel excavation surface; constructing a shotcrete reinforcement surface(20) on the inner circumferential surface of the grouting layer to function as a cut-off membrane to smooth the rough surface of the grouting layer and to prevent the leakage of underground water from the tunnel excavation surface primarily; constructing a water conveyance pipe(100) on the shotcrete reinforcement surface to make leaking water flow inward from the shotcrete reinforcement surface and to flow out the leaking water to the outside; and constructing a water conveyance plate(30) on the inner circumferential surface of the shotcrete reinforcement surface to finish the inner circumferential surface of the shotcrete reinforcement surface and to guide the leaking water flew from the water conveyance pipe to the bottom of a tunnel. A water conveyance pipe comprises a body functioning as a guide pipe to make leaking water flow inward from the shotcrete reinforcement surface, and a fastening joint fastening strongly to the shotcrete reinforcement surface.