Software Analysis on Slope Stability of Gunung Banyak in Batu City

Gunung Banyak and its surrounding area are prone to landslide because of high rainfall. Disaster management program such as land slide analysis and evaluation should be implemented in the area in order to avoid any casualties. The analysis was conducted with the help of software called Slope Stability Geo5 for two dimensions. The method used in the two-dimensional analysis was the limit equilibrium method. Objective of the analysis is to determine slope stability by installing a stone said “Shining Batu” in Gunung Banyak. The data were obtained from laboratory, geoelectric and sondir tests. The data from the laboratory test were used as input for the software, while those from the geoelectric and sondir analyses were used to determine soil geometry layer. Based on the twodimensional software, the Bishop, Fellenius, Spencer, Janbu, Morgenstern price and shahunyants's method, the minimum FS (shahunyants method) was 1.26 for A-A cut and 1.01 for B-B cut. It means B-B has the most critical safety level compared to AA