Abstract:
The idea of“the secondary increment rate of dynamic shear modulus”has been proposed for a long while.However,the influence factors of this rate is still under investigation,Therefore,the “long-term time effect”onthe maximum dynamic shear modulus G
max under the effective overburden pressure was studied in this article, Theregression equations of shear wave velocity were examined as well.The secondary ineronrent of normalized shearmodulus N
g was found increasing as the value of plastic index I
P increased. But,the N
g decreased as the 50% parti-cle size D
50 inereased. The N
g of an undisturbed sample is larger that that of a remolded sample in the relationshipof N
g-D
50. From the N
g-I
p-C relation,the N
g was becoming larger along with the I
p in the same amount ofclay C. With the same value of secondary compression index C
a,the N
g increased as the I
p increased in the N
g-I
p-C
a relationships.
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