STABILITY ANALYSIS OF WATER FRONT RETAINING WALL SUBJECTED TO SEISMIC LOADS USING PSEUDO-DYNAMIC METHOD
ZHOU Xiaoping1，JI Xuan1，QIAN Qihu2
(1. College of Civil Engineering，Chongqing University，Chongqing 400045，China；2. Engineering Institute of
Engineers Crops，PLA University of Science and Technology，Nanjing，Jiangsu 210007，China)
Abstract：It is assumed that failure surface of backfill soil is composite curved one. Pseudo-dynamic method，in which time-history curves of acceleration was simulated by sinusoidal motions，was adopted to research the stability of the water front retaining wall subjected to seismic loads. The damping force and the inertial force acting on retaining wall and backfill soil were investigated. The closed-form solutions of passive earth pressure and dynamic factor of safety against sliding and rotation of the retaining wall during earthquake were obtained. Finally，effects of seismic acceleration，amplification factor，wall height，physico-mechanical parameters of backfill soil and hydrodynamic pressure acting on water front retaining wall on sliding displacement，dynamic factor of safety against sliding and rotation of the retaining wall were quantitatively analyzed. It is concluded that the stability of the water front retaining wall is getting worse when the earthquake speeds up，the water level gets higher and the internal friction angle gets smaller.
2012, Vol. 31 
