Abstract

The model retaining wall experiments with cohesive backfill indicated that the formation of rupture slip surface by applying surcharges depends on the dimension and process of surcharges. Two types of slip surface are slip plane and slip circle. In case of quick, immediate or large increased surchargeș, the rupture surface is the slip circle, there are two cases of occurrence: if width of surcharge LS Lmax, the transition from active to passive pressure occurs on the back of retaining wall. If L > Linas, or uniform surcharges, the transition from active to passive pressure does not occur. The active force changed in magnitude and direction due to the occurrence of the transition from active to passive pressure. In this paper, the writer would like to present one result of determination of active force applying on retaining wall in case of rupture slip circle based on model test results with Binh Duong white clay.