PURPOSE: A tunnel waterproofing method is provided to cut down the time and cost required by making automation in construction possible using mechanism when attaching non-woven fabrics and a waterproof sheet and completing work by one stage. CONSTITUTION: A tunnel waterproofing method comprises the steps of: excavating bedrock; forming shotcrete by spraying concrete on the excavated bedrock; installing fixing anchors(70) on the shotcrete at regular intervals; attaching non-woven fabric and a waterproof sheet to an adhesive layer(73) of the fixing anchor; and forming lining concrete by placing concrete on the waterproof sheet.
