M.Sc. Tezi Görüntüleme | |||||||||||||||||||||
|
|
||||||||||||||||||||
| Summary: A pre-requisite in slope stability analyses is the internal structure, geotechnical properties of soil and rock. It is important to determine the properties of sliding mass and its basement for exposition of the structure of the landslide. Geophysical methods to determine the internal structure of a soil or rock mass may be used for this purpose. Seismic methods are often the most suitable because the measurements depend on the mechanical properties that are also important in the mechanical calculation of slope stability analyses. Other geophysical methods, such as electromagnetic, electric resistivity, self-potential and gravity methods may be useful to determine the internal structure, but require a correlation of found boundaries with mechanical properties. In this study, the outputs of geophysical studies for two landslides area showing different characterization within Trabzon and Gümüşhane Region (NW of Turkey) were presented. In particular, we used the seismic refraction, vertical electrical sounding (VES), ground penetrating radar (GPR) to determine the slope surface of landslides, the saturation zone, P and S wave velocities and the thickness of the landslide material. The landslide structure, distribution of the elastic velocities and resistivity level maps are obtained from the results of the investigations. Also, effectiveness of different geophysical methods in investigation of landslides is discussed. The results were compared with each of the geophysical methodologies and a valuable correlation was found between each of the results. This study offers that geophysical techniques are useful for investigating landslide areas characterized by complex geology.
Key Words: Landslide, Seismic Refraction, Geo-electric, GPR, Surface waves | |||||||||||||||||||||