Studying Dynamic Response of Landslides Using 1g Shaking Table Tests and Comparing with Analytical Methods

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Rajabigol, Morteza | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45170 (09)
University: Sharif University of Technology
Department: Civil Engineernig
Advisor(s): Jafarzadeh, Fardin
Abstract:
Evaluation of seismic slope stability is very important because it has a decisive role in stimating the earthquake damages. According to the past studies, medium to large earthquakes usually cause thousands landslides and many casulties and financial damages. Since nearly half a century ago, several methods have been developed for predicting the occurrence of landslides and permanent movements, but due to the influnce of many parameters on the seismic stability of the slopes further researches is needed.
In present study, to investigate the dynamic behavior of the slopes, four physical models of slopes had been made on shaking table in Sharif university of technology. These slopes have 3 meters length, 1meter width and different heights from Bablosar sand. Instruments included accelerometers and LVDTs. To make the models, Similitude law (IAI,1989) was used. Amplitude of loading was constant for three tests and a test had higher amplitude. Frequency of loading was 5 HZ in all tests. Soil permanent movements was predicted with Rigid Block, Decoupled and Coupled models and compared with observed results. This comparison showed that the predicted soil movement from different methods were often conservative
Keywords:
Dynamic Response ; Slope ; Landslide ; Physical Modeling ; Shaking Table

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