The effects of EPS content,fiber content and cement content on the mechanical behavior of fiber EPS lightweight soil were studied by unconfined compressive strength test and dynamic triaxial test.The consequences show the strength of fiber EPS lightweight soil is positively correlated with cement content,and negatively correlated with EPS content.The addition of fiber increases the maximum strength residual strength and integrity.When the fiber content is greater than 0.3％,the lifting effect is weakened.The dy-namic stress-strain curve of EPS lightweight soil shows a nonlinear rise.Under the same dynamic stress and confining pressure,the dynamic strain of the sample rises with the increase of EPS content.The dy-namic elastic modulus declines with the rise of EPS content,and gradually declines with the rise of dynam-ic stress.The rise of confining pressure increases the stiffness of the sample.
关键词
轻质土/无侧限抗压强度/动三轴/动弹性模量
Key words
lightweight soil/unconfined compressive strength/dynamic triaxial/dynamic modulus of elas-ticity
维普
万方数据