参考引文17-2007准动力法挡土墙地震被动土压力和滑动稳定.pdf

ARTICLE IN PRESS Soil Dynamics and Earthquake Engineering 27 (2007) 497–505 /locate/soildyn Sliding stability and seismic design of retaining wall by pseudo-dynamic method for passive case Sanjay Nimbalkar, Deepankar Choudhury Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India Received 6 October 2006; received in revised form 10 November 2006; accepted 12 November 2006 Abstract Knowledge of the influence of soil inertia and wall inertia on the design of a retaining wall is very important and more so under earthquake conditions. In this paper, by using the pseudo-dynamic seismic forces acting both on the soil and the wall, the design weight of the wall required under seismic conditions is determined under passive earth pressure conditions. The present pseudo-dynamic method considers time, phase difference and effect of amplification in shear and primary waves traveling through both the backfill and the retaining wall due to seismic excitation. A model rigid vertical retaining wall under passive earth pressure conditions with cohesionless backfill material has been considered in the present analysis. Results in graphical form show the non-linear variations of the soil passive resistance factor (F ), wall inertia factor (F ) and combined dynamic factor (F ) with respect to the horizontal seismic acceleration T I w coefficient (kh), required for the design of the wall. The effects of parameters such as wall