Dynamic response of a shaft in dry sands

Abstract

In order to study the dynamic behavior of a shaft in soil during earthquakes, dynamic centrifuge tests were carried out. Two types of models were taken up; (1) level ground of sand; and (2) a hollow shaft of two different depth embedded into the level ground. An effective boundary treatment method was presented so that the semi-infinite ground condition can be satisfied approximately. The effects of input level and shaft geometry on the response of shaft-soil system were discussed.

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