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Abstract

Summary

Reconnaissance of sliding surface has always been the challenge.

Microtremor measurement is one of the most useful methods which can be applied in landslide studies. For this, Nakamura approach have been applied for detecting the subsurface conditions on a big landslide surface in NargesChal, a village in north of Iran in Golestan province.to verify the Microtremor results, Electrical resistivity method was also applied.

Therefore based on processed data, the slide surface was detected and it is distinguished that the studied region has experienced several landslides.

Processed sections show the presence of slip zones at different depth ranges on landslide face of ground surface to 30 m. The Geotechnical logs and resistivity measurements clearly outline the importance of Microtremor measurements in landslide studies for mapping bedrock depth and shear wave velocity. The present study has utilized low cost and fast field survey procedures with high resolution imaging of electrical properties of subsurface and Microtremore. The obtained results clearly display the importance of Microtremore in landslide hazard investigations. The results were controlled by geotechnical logs and Geoelectric profiles and the extracted slide surfaces were confirmed by direct subsurface information. The geology conditions were mapped during the electrical measurements. Combinations of geological information, Microtremore and Electrical resistivity results have proved to be a powerful tool for the investigation of landslides in areas of complex geology. According to SPT tests and the mentioned methods, three sliding surface was determined, one in the depth 5m, the other one in 12m and the last in the depth 25m.

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/content/papers/10.3997/2214-4609.201600669
2016-05-30
2024-04-20

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201600669
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Comparison of Microtremor and Electrical Resistivity in Detecting Sliding Surface
Conference Proceedings 2016, 1 (2016); https://doi.org/10.3997/2214-4609.201600669
/content/papers/10.3997/2214-4609.201600669
/content/papers/10.3997/2214-4609.201600669
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