Use of two dimensional electrical resistivity tomography (2D- ERT) synthetic modelling to detect collapse masses

Authors

  • Dilli Ram Thapa Birendra Multiple Campus, Tribhuvan University

DOI:

https://doi.org/10.3126/jngs.v60i0.31250

Keywords:

2D electrical resistivity tomography, Resistivity inversion, Collapse mass

Abstract

The presence of collapse masses in the subsurface causes severe problems in the geotechnical design activities. In this study, two dimensional Electrical Resistivity Tomography (2D-ERT) synthetic modelling techniques were used to detect collapse masses commonly found in the river bank. Two dimensional (2D) resistivity models are first created utilizing prior information of collapsed masses in the river bank and afterward inverted to reconstruct the resistivity distribution in the subsurface. The resulting two dimensional models exhibits that collapsed masses can be better detected particularly  at low resistivity noise level (2%) than the high noise levels (5% and 10%). The models are particularly very useful prior to executing the field investigations in the river bank sites and furnish the subsurface geology as well as the successful interpretation of the results withconfidence.

Downloads

Download data is not yet available.
Abstract
173
pdf
149

Downloads

Published

2020-09-16

How to Cite

Thapa, D. R. (2020). Use of two dimensional electrical resistivity tomography (2D- ERT) synthetic modelling to detect collapse masses. Journal of Nepal Geological Society, 60, 139–145. https://doi.org/10.3126/jngs.v60i0.31250

Issue

Section

Articles