荆江大堤下伏饱和粉细砂最大动剪模量经验估算

doi:10.13722/j.cnki.jrme.2014.s2.124

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Abstract The saturated fine sand with alluvial origin in Jingjiang levees was collected，and specimens were reshaped refer to the in-situ tests results. Combining with the actual consolidation ratio Kc(Kc≈1.6)，the dynamic triaxial tests were conducted to research the characteristics of dynamic shear modulus，and then a suitable empirical formula was explored to estimate the maximum shear modulus. Results show that：Under the condition of same relative density(Dr)，the release velocity of dynamic shear modulus will slow down with the increasing of confining pressure；However，when Dr changes from 0.5 to 0.6，the decay curves of dynamic shear modulus can match well with the same confining pressure；Based on the empirical estimate formula，relative density and standard penetration test blow count are taken into account respectively to estimate the maximum shear modulus of saturated fine sand. Compared with the testing results，it is verified that the formula can estimate the maximum shear modulus of this kind of saturated fine sand well.

Key words： soil mechanics Jingjiang levees saturated fine sand the maximum dynamic shear modulus empirical estimate

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	Articles by authors
	JIANG Jiwei
	RAO Xibao
	ZHANG Wei
	PAN Jiajun
	WANG Zhanbin

Cite this article:

JIANG Jiwei,RAO Xibao,ZHANG Wei, et al. EMPIRICAL ESTIMATES OF MAXIMUM DYNAMIC SHEAR MODULUS OF SATURATED FINE SAND IN JINGJIANG LEVEES[J]. , 2014, 33(S2): 4384-4390.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.124 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4384

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