A numerical study on the dynamic behaviour of gravity and cantilever retaining walls with granular backfill

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Dynamic behaviour of gravity and cantilever retaining walls is investigated by
finite element method, incorporating the nonlinear elasto-plastic material
properties of soil and seperation of the wall and backfill. Two dimensional finite
element models are developed employing the finite element software ANSYS. The
wall is modelled to rest on a soil layer allowing translational and rotational
movements of the wall. Soil-wall systems are subjected to harmonic and real
earthquake motions with different magnitude and frequency characteristics at the
base. The maximum lateral force and its application point during dynamic loading
are determined for each case. It is observed that the frequency content of the base
motion has a significant influence on the dynamic lateral soil pressures and the
lateral forces considerably increase as the base motion frequency approaches the
fundamental frequency of the soil layer. The maximum lateral thrusts calculated
by finite element analyses are generally found to be greater than those suggested
by Mononobe-Okabe method and experimental findings. Nevertheless, the
locations of the application point obtained by finite element method are found to
be in good agreement with the results of experimental studies.

Ersan Yıldız
A numerical study on the dynamic behaviour of gravity and cantilever retaining walls with granular backfill · 2007 · 169 sayfa.
Danışman: Prof.Dr. Yener Özkan
Bu araştırmanı devamına: http://tez2.yok.gov.tr/tez.htm adresinden ulaşabilirsiniz.