Centrifuge Study of the Seismic Response of Buried Reservoir Structures

��ܳ��:��The Los Angeles Department of Water and Power (LADWP) is currently replacing many of its open reservoirs with buried, reinforced-concrete structures to improve water quality. These underground structures in Southern California need to be designed to safely withstand seismic loading. The current state of practice for evaluating lateral seismic earth pressures on underground structures is based on simplified procedures or numerical tools that have not been calibrated or validated adequately against physical model studies. This study is to perform centrifuge testing and numerical modelling in order to investigate soil-structure interaction and to understand the mechanism of how the lateral pressure developed on the wall of an underground structure. The centrifuge tests are conducted at our centrifuge center.

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