Slope Failure Investigation Using Electrical Resistivity Profiling

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.

The use of novel thick-film sensors in the estimation of soil structural changes through the correlation of soil electrical conductivity and soil water content

“…Common slope monitoring techniques involve drilling boreholes and installing deep instrumentation to measure soil water pressures or displacements. This is expensive to do, and therefore monitoring of slopes is limited to only a small number that are exhibiting obvious signs of failure [13,14]. The ability to predict failure in long lengths of earthwork would be of major benefit to operators of transport systems, and indeed other infrastructure stakeholders, in that not only could potential safety risks be identified and avoided, but through early intervention and remedial operations it may also be possible to prevent earthwork failure and subsequent loss of service [15].…”

Recognition of boulder in granite deposit using integrated borehole and 2D electrical resistivity imaging for effective mine planning and development

“…2D ERT has been found to be more efficient in various studies like hydrogeological study, ground water exploration, geotechnical site investigation, environmental assessment and archaeological site investigation (Abu-Zeid et al, 2004;Aristodemou & Thomas-Betts, 2000;Awang et al, 2016;Cassiani et al, 2006;Chambers et al, 2006;Dahlin & Zhou, 2004;Drahor et al, 2008;Lesparre et al, 2016;Loke & Lane Jr, 2004;Mansoor & Slater, 2007;Marsan et al, 2017;Martínez-Pagán et al, 2009;Metwaly & AlFouzan, 2013;Mojica et al, 2017;Stan et al, 2017;Yeh et al, 2002). Application of electrical resistivity imaging in realm of mineral exploration is also found to be efficient and effective (Beauvais et al, 1999;Cardimona, 2002;Chambers.…”

Gênese e cronologia de feições erosivas superficiais e subsuperficiais

“…Variações na resistividade em subsuperfície são principalmente função da litologia, podendo ser associada com diferentes materiais. Cada material normalmente tem seu próprio valor de resistividade (Awang et al, 2016). Segundo descrição realizada por Souza Filho (1986), em área vizinha à área de estudo (quadrícula de Campinas), e observado em campo por (Vidal-Torrado, 1994), aparentemente o ambiente deposicional da Formação Itararé se deu em período glacial, predominantemente marinho, em ambientes considerados como costeiros.…”