With its excellent permeability and filtration properties, permeable geotextiles effectively solve common problems of water accumulation and leakage in underground engineering projects, ensuring their safe operation. In underground projects such as integrated utility tunnels, underground warehouses, and tunnels, permeable geotextiles can serve as drainage layers, quickly collecting water accumulated within the soil while filtering soil particles to prevent blockages in drainage pipes. This effectively controls the groundwater level and prevents structural cracking and damage caused by water erosion. The product is soft, easy to install, and can be customized to meet the drainage and seepage prevention needs of various underground projects, enhancing structural stability and service life.