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STUDY ON THE ELASTIC MODULUS AND THE DAMPING RATIO OF COMPOSITE FOUNDATION

Liang Xu Cai Yuanqiang (Hangzhou Construction Committee) (Zhejiang University)  
Influence of factors such as cement-mixed ratio and confining pressure on the dynamic properties of composite specimen with soil cement was studied under a wide range of strains by regression analysis, a simple method for calculating the dynamic elastic modulus and damping ratio is proposed and an empirical formula considering the mentioned factors above is also presented to provide a elementary reference for aseismic design of composite foundations with cement-mixing piles.
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