Direct Shear Test of Unsaturated Soil

The present study focuses on some tentative laboratory tests using a newly-constructed modified direct shear test apparatus. The single-stage and multistage direct shear tests were performed to determine the shear rate and test scheme of unsaturated shear test. Shear strength parameters of unsaturat...

Full description

Autores:
He, Peng
Sun, Liuying
Wang, Zhen
Tipo de recurso:
Article of journal
Fecha de publicación:
2017
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/63568
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/63568
http://bdigital.unal.edu.co/64014/
Palabra clave:
55 Ciencias de la tierra / Earth sciences and geology
Unsaturated soil
direct shear test
matric suction
suelos no saturados
cizallamiento directo
succión matricial.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:The present study focuses on some tentative laboratory tests using a newly-constructed modified direct shear test apparatus. The single-stage and multistage direct shear tests were performed to determine the shear rate and test scheme of unsaturated shear test. Shear strength parameters of unsaturated soil in different conditions are obtained and the tests indicate good agreement with typical theories of unsaturated soil, the nonlinear matric suction failure envelope is determined. Some shear strength equations are also fitted through the experimental results.