SLOPE FAILURE INVESTIGATION USING ELECTRICAL RESISTIVITY PROFILING

Authors

  • Haryati Awang Institut for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia.
  • Ilyani Akmar Abu Bakar Institut for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia.
  • Fauzilah Ismail Institut for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia.
  • Anizahyati Alisibramulisi Institut for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia.
  • Emanuel Benjamin Institut for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, Shah Alam, Malaysia.

DOI:

https://doi.org/10.11113/jt.v78.8568

Keywords:

Resistivity imaging, SPT, N-value, engineering properties, slope failure

Abstract

This study elaborates on the destructive and non-destructive test methods in investigation of slope failure. Borehole method is the conventional destructive test method which commonly used to investigate the slope failure. Due to the sensitivity of the slope failure, the non-destructive investigation was conducted using electrical resistivity method. Both methods were used to investigate the slope failure area and to obtain the engineering properties of the study area. Field resistivity test was carried out using ABEM Terrameter SAS400 instrument for resistivity profiling. Borehole drilling works were conducted to provide bore log data. The results of resistivity are illustrated in imaging profile and engineering properties such as soil classifications, moisture content, soil hardness and SPT N-value were analysed from the laboratory tests. In order to develop the relationships of both resistivity and engineering properties, a comparison between soil hardness and resistivity value was determined. The findings of this study show that both methods are reliable to investigate the slope failure via sub-surface profile and engineering properties.

References

Loke, M. H. and Barker, R. D. 1996. Practical Techniques For 3D Resistivity Surveys And Data Inversion. Geophysical Prospecting. 44: 499-523.

Siti, A. I. and Bujang, K. H. (Unpublished Thesis). Application Of Electrical Resistivity Imaging Technique In Slope Stability Study In Banding Island, Perak. Department Of Environment Science And Civil Engineering. Faculty Of Environment Study And Faculty Of Engineering.

Lau, K. L. 2005. Application of Electrical Resistivity Imaging Technique in Slope Stability Study of Granitic Residual Soils in the Cameron Highlands, Pahang. University Putra Malaysia

Dahlin, T. and Loke, M. H., 1998. Resolution of 2D Wenner Resistivity Imaging As Assessed By Numerical Modeling. Journal of Applied Geophysics. 38: 237-249.

Telford, L. M., Geldart, L. P., Sheriff, R. E. &. Keys, D. A. 1987. Applied Geophysics. Cambridge University Press.

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Published

2016-05-11

How to Cite

SLOPE FAILURE INVESTIGATION USING ELECTRICAL RESISTIVITY PROFILING. (2016). Jurnal Teknologi, 78(5-5). https://doi.org/10.11113/jt.v78.8568