Ka taea e ta taatau kamupene te whakarato mahere kaupapa whakaurunga geosynthetic me nga tohutohu hoahoa na to maatau wheako miihini nui i roto i tenei umanga.
Pūnaha arai o te harotoroto rokiroki hiku me te geosynthetics:
Pūnaha katinga potae mo te urunga whenua: