Resistivity and Seismic Refraction Studies on Kısıklı Landslide (Antalya, Turkey)

Abstract

When natural slope is disturbed by human activity such as road construction and infrastructure, continuous landslide monitoring is important to prevent loss of material and life. Therefore, this study aims to determine the landslide material, the possible sliding surface and the influence of groundwater on the landslide occurrence. Low cost monitoring landslide is performed which is vertical electrical sounding (VES) and seismic refraction methods. Case study in Kisikli district, Antalya Province, Mediterranean Region of Turkey. VES survey was performed using Schlumberger electrode array at six locations. VES results interpretation leads to detect of maximum five geo-electrical layers. First, second and third layers represent saturated and permeable layer, while fourth and fifth layers correspond to an impermeable layer. Seismic refraction measurements were carried out on three profile layers. Low velocity and elastic parameters relatively correspond to the permeable materials in near surface with thickness about 4-5 m higher porosity. The integrated of VES and seismic survey allows mapping the weathered material at depth and providing depth information of the sliding surface which occurs at a depth between approximately 5 m and 20 m.