Utilizing high-performance PVC or EVA membranes as the main water-stop layer, integrated with non-woven geotextiles for surface stabilization. This system is highly compatible with various tunnel lining construction methods. The geotextile layer plays a critical role in filtration and drainage, guiding water to specialized longitudinal pipes for discharge. Beyond superior waterproofing, this solution significantly mitigates hydrostatic pressure on the concrete lining, ensuring the long-term structural integrity and safety of the tunnel.