STUDI KELONGSORAN PADA LERENG TERBEBANI SILO DENGAN SSR-FEM PADA LOKASI SINAR MAS AGRO RESOURCE - SUNGAI BUAYA MILL LAMPUNG

Abstract

There have been twice (2) land movement on bevel loaded with silo at Sinar Mas Agro Resources – Buaya Mill River, Lampung, in the rainy season 2005 and 2006 without significant bevel strengthening. The bevel condition afler landslide was analysed using shear strength reduction technic-finite element method (SSR-FEM). The information of landslide area zone prediction, landslide direction and land deformation after landslide as a result from analysis using SSR-FEM is useful as a guidance in the decision making to choose the method of bevel strengthening. A significant safe factor reduction (SF) of bevel stability at unloaded condition and silo loaded condition indicated that silo planning on the bevel requires a further study to find the type of appropriate foundation system in order to minimize the risk of failed-silo structure on the bevel