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Dynamic Property of Mucky Soil of Subgrade under Cyclic Load
Deformation characteristics of marine sedimentary, which is widely distributed in Ningbo area, are important for the construction of pavement-subgrade system, rail transit-subgrade system, dynamic foundation, and so on. In this paper, FlowTrac II system, a fully automatic bidirectional excitation triaxial testing system produced by GEOCOMP, is used to study the deformation characteristics and the dynamic responses of subgrade in the area covered by rail transit network of Ningbo city. A series of unidirectional cyclic triaxial tests are conducted on remoulded mucky soil samples. Effects of amplitude of dynamic stress, consolidated confining pressure and load repetition on the behaviors of the saturated mucky soil are analyzed. It is shown that the influence of the above factors on the dynamic elastic modulus, damping ratio is great. At last, the envelopes of dynamic shear modulus ratio G/Gmax versus dynamic strain D for mucky soil are presented.
Dynamic Property of Mucky Soil of Subgrade under Cyclic Load
Deformation characteristics of marine sedimentary, which is widely distributed in Ningbo area, are important for the construction of pavement-subgrade system, rail transit-subgrade system, dynamic foundation, and so on. In this paper, FlowTrac II system, a fully automatic bidirectional excitation triaxial testing system produced by GEOCOMP, is used to study the deformation characteristics and the dynamic responses of subgrade in the area covered by rail transit network of Ningbo city. A series of unidirectional cyclic triaxial tests are conducted on remoulded mucky soil samples. Effects of amplitude of dynamic stress, consolidated confining pressure and load repetition on the behaviors of the saturated mucky soil are analyzed. It is shown that the influence of the above factors on the dynamic elastic modulus, damping ratio is great. At last, the envelopes of dynamic shear modulus ratio G/Gmax versus dynamic strain D for mucky soil are presented.
Dynamic Property of Mucky Soil of Subgrade under Cyclic Load
Liu, Ganbin (author) / Kai, Qianzheng (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
Soil Dynamics and Earthquake Engineering ; 206-211
2010-05-14
Conference paper
Electronic Resource
English
Dynamic Property of Mucky Soil of Subgrade under Cyclic Load
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