Numerical modelling of geocell reinforced slope by use of plastic bottle waste Afif Agri Diansyah, Fikri Faris, Ahmad Rifa’i and Roberth Evander Meidudga E3S Web Conf., 325 (2021) 04001 Published online: 17 November 2021 DOI: 10.1051/e3sconf/202132504001