Open AccessStudy on creep characteristics of unsaturated sericite schist residual soils
Author(s) -
Huan Liu,
Xiao-lan Lian,
Nie Guang-ying,
Qingwen Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012041
Subject(s) - schist , sericite , creep , geotechnical engineering , residual , consolidation (business) , geology , materials science , composite material , geochemistry , metamorphic rock , quartz , business , accounting , algorithm , computer science
Sericite schist is an extremely soft rock, which is characterized by obvious rheological properties and large creep deformation. The residual soil of Sericite schist is in unsaturated state for most of the time. When encountering water, it interacts with water, which has a great influence on its strength. In this paper, one dimension and three axis creep tests of Sericite schist residual soil are carried out by using unsaturated quadruple consolidation apparatus and unsaturated triaxial creep apparatus. The results show that the creep process of the residual soil can be divided into three stages: rapid growth stage, slow growth stage and stable stage. The creep deformation of triaxial test is larger than that of one dimension.