SIMULATION OF LANDSLIDE PHENOMENA USING SMOOTHED PARTICLE HYDRODYNAMICS METHOD

• Main Author: HARIER (NIM : 10212087), MUSTAWA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23380
• Institution: Institut Teknologi Bandung

Landslide is the movement of rock, debris, or earth down a slope which is the result from the failure of the materials to restrain themselves from gravity force. In order to <br /> <br /> reduce the dificult of predicting, modelling and simulating this phenomena visually using Smoothed Particle Hydrodynamics (SPH) could be done. After that, we could <br /> <br /> do the study about the variations in slope and water content in the soil. There are several types of landslides, which are Fall, Topple, Translational Slide, Rotational Slide, Flow, Lateral Spreading, and Complex. The ow type is selected for the simulation because its characteristics are similar to the fluid. This kind of landslide is then observed phisically such as the forces acting on it, which are gravity, pressure force, viscous force, and also cohesion and adhesion force. SPH is a numerical method that can be used to solve problems in fluid dynamics by discretizing the fluids in to infinitesimal particles which bring its own physical information which are viewed from Lagrangian viewpoint. The landslide phenomenon which is simulated, formed of soil and water particles which configured randomly based on the percentage of water in the soil. This configuration has 2 kind of models, the one with 25:82 degree and with 45 degree slope. After simulated, it is known that the 2nd Model is more susceptible to landslide than the 1st Model, it can be seen from the landslide that occurred in the 2nd Model begins since the water in the soil reach 2%, in contrast with the the 1st Model which occurred since 5%.