The Stability Analysis of the Lusi Mud Volcano Embankment Dams using FEM with a Special Reference to the Dam Point P10.D
Abstract: Since the eruption
of the Lusi Mud volcano in Sidoarjo, East Java, on May 2006, soil embankment
dams have been built to keep hot mud within the ponds. Unfortunately, since the
dams were sitting on poor weak ground, land subsidence intensively occurred
around the dams. A finite element method (FEM) was, then, applied to evaluate
the stability of the dams particularly of the dam point P10.D, being considered
as the most unstable point over 29 other dam points. Results show that the dam
displacements in vertical and horizontal directions were high. The total
displacements of the final design were about 1.5 m in both static- and
dynamic-state conditions. These modelled data show a similar trend with field
measurement data. The dam had only a factor of safety of about 1.1, and the dam
might fail through a deep slide mode.
Author: Agustawijaya, D.S.,
Sukandi
Journal Code: jptsipilgg120028
