Characterization of a Landslide using Seismic Refraction, Electrical Resistivity and Hydrometer Methods, Adatepe - Canakkale, NW Turkey
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Tarih
2011
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Environmental Engineering Geophysical Soc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Seismic refraction and electrical resistivity surveys were carried out to characterize a landslide that occurred near the Canakkale-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. Sediment-size fraction maps show that the slip surface material contained an excessive amount of clay. The clay-rich slipping layer was observed to a maximum depth of 4-5 in marked by a low (2-4 ohm-m) resistivity zone, contrasting with the underlying sand-rich beds with relatively higher resistivities (>6 ohm-m). A velocity variation ranging between similar to 1,250-1,500 m/s also characterized this water-saturated slipping zone. 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 active Canakkale-Lapseki-Bursa highway.
Açıklama
Anahtar Kelimeler
Tomography Technique, Site, Inversion, Stability, Anatolia, Slope, Clay, Area
Kaynak
Journal of Environmental and Engineering Geophysics
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
16
Sayı
3
