NUMERICAL SIMULATIONS AND SHAKING TABLE TESTS OF BLOCK MASONRY WALL DURING EARTHQUAKE

Abstract

 A series of shaking test with 1/7 scaled model was conducted by corporation of JR Co. Ltd.. DDA (Discontinuous deformation Analysis) simulations were carried out in two patterns, in which one was countermeasure with piles of stone wall, gravel and backfill soil, and the other is no-countermeasure wall.
 The residual patterns of displacement in the DDA simulations are in good agreement with the results of shaking tests. Additionally, the DDA simulation approximately predicts the starting point and the beginning time of collapse inside the retaining wall. We could confirm that the DDA was a powerful tool and is complementally applicable to consider seismic design of masonry retaining walls.