STATW OF THE ART REVIEW OF GEOTECHNICAL CENTRIFUGE MODELING TEST IN CHINA

Small-scale physical modeling is an effective method for examining structural and geotechnical problems.However,the stress of a small-scale physical model under gravity is much lower than those in its prototype.In addition,the nonlinearity of the prototype materials is also not easily to be represented in the small-scale physical model.So,a regular small-scale physical model can hardly reproduce the behavior of its prototype.One way to resolve these difficulties is to raise the self-weight of the small-scale physical models up to its prototype.The most convenient tool to increase the self-weight stress is the so-called geotechnical centrifuge.This paper presents a state of the art review of relevant literatures and materials on geotechnical centrifuge technologies in China.It summarizes the geotechnical centrifuge modelling projects that have done up to now in China.According to level of research and applications,the development history of centrifuge technology in China can be divided into three phases.This paper illustrates applications and situation of research by each phase and introduces the development course of instruments,test techniques and data acquisition.in conclusion,some unsolved problems in centrifuge research in China have been pointed out.Outlook on centrifuge research and work is presented.