Evaluation of Sidoarjo mud volcano embankment.

Since 2006, Sidoarjo Mud Volcano Levee has been gradually elevated by The Sidoarjo Mud Flow Mitigation Center (PPLS). It was constructed to prevent hot mud volcano, which was unpredictably erupted and debatable among researchers, whereas it is flowing into surrounding areas. Analysis of embankment stability was conducted by Agustawijaya et al. (2012) and Widjaja et al. (2017) at point 10 D and point 21, respectively. However, the eruption on it is insufficiently stopped, although the quantity has decreased significantly. In this case, PPLS, as an authority of LUSI, performed some increased levee as an additional embankment. Nevertheless, the high embankment causes instability. They, moreover, built on the soft soil foundation that has made a significant awareness to analyze the embankment stability, particularly on the point of 10 D. A limit equilibrium method was used for evaluation of embankment stability, and the result shows that factor of safety (FoS) of the embankment is 1.7. [ABSTRACT FROM AUTHOR]