Safety factors and stability analysis of escape hill critical high towards tsunami free-board and run-up level

Earthquake threats that had caused tsunami hazards with a lack of optimal efforts in the construction of evacuation sites, it is necessary to conduct studies on evacuation sites as escape hill. One method of overcoming building construction on the effect of freeboard and run-up level of vertical walls in one of tsunami evacuation models that need to be analyzed for the maximum height that is suitable against the lateral force of tsunami wave. This study's purpose is to calculate the stability of slope and embankment high on escape hill and calculate the safety factor of soil bearing capacity. The data obtained from the undisturbed sample are then taken to the laboratory for physical and mechanical properties analysis and slope failure of escape hill calculated using the finite element method. This study of maximum embankment height the escape hill for evacuation site, stability obtained at an altitude of 10.0 m and safety factors are 2.14 to 2.84 which is very safe. From the material set design that has been done, it is shown that the modeling of materials set with variations of soil cohesion value (c) and the value of the shear angle in the soil (φ) the safety factor of 2.412.