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Palaeoscars and landslide prediction using 2D ERI techniques in Ooty area, Nilgiri district, Tamilnadu | Abstract
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Abstract

Palaeoscars and landslide prediction using 2D ERI techniques in Ooty area, Nilgiri district, Tamilnadu

Author(s): Antony Ravindran, Ramanujam N

The landslide is one of the major disaster problems in Nilgiri Plataue in the part of Ooty region Kakachi, Billimalai, Padukadu and Karadicut. The soil flow, mudflow and rock fall is common sliding fromed by heavy rainfall and easily weathered rock of Archaen gneiss. The groundwater is taken as the major role for the sliding. 2D Electrical Resistivity Imaging (ERI) investigation is suitable method to identify the landslide prone zone and palaeosliding in the study area. 2D ERI with Wenner array was conducted for landslide prediction. The use of 2D ERI technique to distinguish the water bearing weathered zone, lithomorgic clay, weathered gneissic rock. The elevation n survey conducted using total station. The study area soil and rock mass sliding, toe slides,rock mass sliding in the studyarea due to high rainfall and seismic activity . The case study focuses in the palaeoslides and with the related upcoming landslides in the study area. The resistivity image obtained from the Res2DINV software is used for the prediction of landslide in Ooty, Nilgiris area.