岩土工程学报2012，Vol.34Issue(9)：1654-1660,7.
循环应力历史对饱和软黏土小应变剪切模量的影响
Effects of loading history on small-strain shear modulus of saturated clays
摘要
Abstract
The small-strain shear modulus is the main physical index of saturated clays. In the methods for the effective stress analysis, the mall-strain shear modulus obtained from static tests is often used in the dynamic analysis without regard to the influence of loading history. However, for saturated clays, this assumption has not been proved by enough test data. Based on this consideration, a few cyclic triaxial and bender element tests were conducted to study the influence of loading history on the small-strain shear modulus of saturated clays. The test results indicate that the influence is great and the above assumption is not correct. Meanwhile, it is also found that the small-strain shear modulus can be used to determine the failure criterion of saturated clays under cyclic loading.关键词
小应变剪切模量/弯曲元/动三轴/应力历史Key words
small-strain shear modulus/bender element/cyclic triaxial test/loading history分类
建筑与水利引用本文复制引用
谷川,蔡袁强,王军,杨芳,胡秀青..循环应力历史对饱和软黏土小应变剪切模量的影响[J].岩土工程学报,2012,34(9):1654-1660,7.基金项目
国家杰出青年基金项目 （）
国家自然科学基金项目 （）
973项目（2011CB411907）：浙江省自然科学基金项目 （）
浙江省科技计划项目 （）
温州市科技计划项目 （）
