Presenter: Bing-Yun Wu
Date: 2016/12/29
Abstract
Natural hazards such as earthquakes, landslides, and floods give rise to severe economic losses all over the world. Landslides, in particular, are a major problem for Turkey estimates that between 1959 and1994 the loss of buildings to landslides comprises 27% of the entire loss caused by all natural hazards. In this study, seismic refraction and electrical resistivity surveys were used to characterize a landslide that occurred near the Çanakkale-Lapseki- Bursa highway, in northwest Turkey. Hydrometer analyses were also performed to highlight the composition of the slip surface material. The combined interpretation of the methods yielded the mass of the landslide body and the possible subsurface nature of a basal slip plane. The results of the geotechnical surveys were found to be in good agreement with the geophysical surveys. Results indicated a buried failure surface under the studied shallow slide mass, which appeared to be a prolongation of the long upward-concave slip surface of the old landslide area to the east. Thus, future reactivations can be expected along basal slip surfaces of both recent and old landslide areas, which may pose a risk for the road structure and vehicular traffic along the highway.
Reference
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