We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Static Liquefaction Assessment Combining Shear Wave Velocity, Peak Strength and Soil Grading.
- Authors
Soares, Marisa; Viana da Fonseca, António; Ferreira, Cristiana; Rios, Sara
- Abstract
A large set of undrained compression triaxial tests was carried out on different types of cohesionless soils, from sands to silty sands and silts. Shear wave velocity measurements were also carried out. These tests exhibit distinct state transitions ranging from flow liquefaction to strain softening or strain hardening. With the purpose of defining a framework to assess soil liquefaction, it was found that the ratio between the shear wave velocity (VS0) and the peak undrained deviatoric stress (qpeak), VS0/qpeak, could be accurately used to define a boundary between liquefaction and strain hardening for sands and between strain softening and strain hardening for silty sands and silts. Since this ratio is a function of the tested material, the prediction of these boundaries can be made as a function of soil grading, namely via the coefficient of uniformity, CU. Despite not being regarded as a strong geomechanical parameter, CU is easily determined from a grain-size distribution test and has an empirically proven correlation with critical state parameters.
- Subjects
SHEAR waves; STRAIN hardening; SOILS; SOIL liquefaction; SOIL classification
- Publication
Applied Sciences (2076-3417), 2023, Vol 13, Issue 15, p8580
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app13158580