Matatu-dimensional geonet drain (inozivikanwawo sematatu-dimensional geonet drain, tunnel geo net drain, drainage network): Iyo ine-mativi matatu-dimensional epurasitiki mesh inogona kubatanidza seepage geotextiles pamativi maviri.Inogona kutsiva iyo yechinyakare jecha nematombo uye inonyanya kushandiswa kumarara, dhiraivha yemarara, madhigirii uye tunnel madziro.