Assessment of Sidoarjo mud flow embankment stability using very low frequency electromagnetic method

Sungkono*, Yusron Feriadi, Alwi Husein, Hardi Prasetyo, Muchammad Charis, Dwinata Irawan, Juan P.G.N. Rochman, Ayi S. Bahri, Bagus J. Santosa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The earth on LUSI embankment has a high failure potential due to several factors such as: seepage, leakage, vertical and horizontal deformation, cracking and fault (discontinuity), overtopping, mud slide, and swelling. Very low frequency electromagnetic method was carried out at LUSI embankment in order to delineate fracture and potential pathway of seepage occurring through the subsurface structure the embankment body. To reach these objectives, several methods were carried out in the selected area, such as direct current resistivity, total station and Rayleigh wave dispersion to provide information on the mechanical properties LUSI embankment subsurface. This study indicates that seepage and fracture through the LUSI embankment is presented by a set of lines which are possibly caused by deformation in the LUSI area. Furthermore, based on the fracture and seepage positions and mud or fluid flow direction, the unstable LUSI embankment is determined as located around the northwest and northern parts of the area.

Original languageEnglish
Article number196
JournalEnvironmental Earth Sciences
Volume77
Issue number5
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Deformation
  • Embankment
  • Liquid mud saturation
  • Resistivity imaging

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