Imikhiqizo ye-Tri-planar iqukethe izimbambo ze-HDPE ezimaphakathi ezihlinzeka ngokugeleza kwesiteshi, nemicu ebekwe ngokudayayo ephezulu nephansi enciphisa ukungena kwe-geotextile. Isakhiwo esiyinhloko sokugcina igebe sinikeza ukudluliswa okuphezulu kwemikhiqizo kunemikhiqizo ye-bi-planar.