Seismic Soil-Structure-Interaction and Lateral Earth Pressures on Buried Reservoir Structures

摘要

This paper summarizes the results from a centrifuge experiment conducted at the University of Colorado at Boulder to evaluate seismic soil-structure-interaction, lateral seismic earth pressures, and dynamic response of equivalent model structures representing buried water reservoirs during a selected suite of input earthquake motions. This paper presents a summary of the design and planning, instrumentation challenges, and test results for the first baseline experiment in a series of centrifuge tests. The preliminary results indicate that underground structures similar in type to those tested in this study can experience seismic lateral earth pressures of engineering importance. The insight from these tests is useful for understanding the performance of underground reservoir structures worldwide and is applicable to an entire class of unyielding underground structures that are restrained at their roof and floor levels.