TUNNEL WITH DRAIN BRACING AND SUPPORTING CHANNEL

摘要

PURPOSE: A drain bracing and a tunnel installed with a reinforcement channel is provided to obtain the stability of a tunnel structure and prevent the deformation and crack of lining concrete. CONSTITUTION: A drain bracing and a tunnel installed with a reinforcement channel is constituted as follows. A reinforcement channel(30) is installed on both lower ends of a lining concrete(11). One-side wall of the reinforcement channel is installed on the lining concrete. Multiple inlets are formed on the other side wall of the reinforcement channel. Granular water-permeable material is installed between the reinforcement channels of both lower ends of the lining concrete.