Effect of consolidation ratios on ma

Effect of consolidation ratios on maximum dynamic shear modulus of sands

The dynamic shear modulus (DSM) is the most basic soil parameter in earthquake or other dynamic loading conditions and can be obtained through testing in the field or in the laboratory. The effect of consolidation ratios on the maximum DSM for two types of sand is investigated by using resonant column tests. And, an increment formula to obtain the maximum DSM for cases of consolidation ratio kc＞1 is presented. The results indicate that the maximum DSM rises rapidly when kc is near 1 and then slows down, which means that the power function of the consolidation ratio increment kc-1 can be used to describe the variation of the maximum DSM due to kc＞1. The results also indicate that the increase in the maximum DSM due to kc＞1 is significantly larger than that predicted by Hardin and Black's formula.

作 者： YUAN XiaoMing Sun Jing Sun Rui   作者單位： YUAN XiaoMing,Sun Rui(Institution of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

Sun Jing(Harbin Institution of Technology, Harbin 150090, China) 

刊 名： 地震工程與工程振動（英文版）  SCI 英文刊名： EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION  年，卷(期)： 2005 4(1)  分類號： P315  關鍵詞： consolidation ratio   maximum dynamic shear modulus   increment formula   sands  

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