Weakening Characteristics of Soft Clay Foundation under Earthquake

The dynamic triaxial test is carried out by the dynamic cyclic shear equipment GDS to determine the strength of soil after earthquake cyclic loading. The consolidation pressure is determined according to the in-situ stress state of soil samples. The samples are loaded with sinusoidal periodic loads...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-11, Vol.571 (1), p.12060
Main Authors: He, Yunwu, Peng, Xiaogang, Li, Youzhi, Jiang, Jian, Li, Jia
Format: Article
Language:English
Subjects:
Clay
Cyclic loads
Earthquake loads
Earthquakes
Pile bearing capacities
Pile foundations
Seismic activity
Soft clay
Soil dynamics
Soil strength
Soil stresses
Triaxial tests
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Summary:The dynamic triaxial test is carried out by the dynamic cyclic shear equipment GDS to determine the strength of soil after earthquake cyclic loading. The consolidation pressure is determined according to the in-situ stress state of soil samples. The samples are loaded with sinusoidal periodic loads of different amplitudes at a fixed frequency, with the failure standard of achieving the same final residual strain. Compared with the static triaxial test results, we can determine the strength weakening of soft clay foundation with different depths under earthquake load, which can provide a reliable reference for engineering problems such as the bearing capacity of pile foundation in soft clay.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/571/1/012060