STUDI KASUS GERAKAN TANAH DIPICU HUJAN DENGAN MENGGUNAKAN MODEL TRIGRS
Abstract
Indonesia is a country which prone to natural disasters such as
earthquakes, and tsunamis. In addition, Indonesia is also vulnerable to
hydrometeorological disasters such as floods and landslide. One of the many
causes of landslides is due to the high intensity of rainfall in a particular area. In
this research we will examine the distribution of factor of safety (FS) and
distribution of pore-water pressure on the slope while in rain condition. The
values of the Factor of Safety (FS) and the increase of pore-water pressure were
obtained from numerical modeling using the TRIGRS (The Transient Rainfall
Infiltration and Grid-Based Regional Slope-Stability Model) version 2.0 software.
The results of the modeling processed in a Geographic Information System-based
software so that the distribution of Factor of Safety (FS) values and pore-water
pressures can be visualized in the form of a 2-dimensional spatial map.