2018 : Assessment of Sidoarjo mud flow embankment stability using very low frequency electromagnetic method

Dr. Sungkono S.Si, M.Si
Prof.Dr. Bagus Jaya Santosa
Dr. Ayi Syaeful Bahri S.Si., M.T.
Ir. Sungkono CES
Juan Pandu Gya Nur Rochman S.Si., M.T.


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 …