Open AccessWeakening Characteristics of Soft Clay Foundation under Earthquake
Author(s) -
Yunwu He,
Xiaogang Peng,
Youzhi Li,
Jian Jiang,
Jia Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/571/1/012060
Subject(s) - geotechnical engineering , consolidation (business) , foundation (evidence) , triaxial shear test , pile , geology , bearing capacity , pore water pressure , shear (geology) , petrology , accounting , archaeology , business , history
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.