Undrained Shear Strength
- Oceanography -
Geological Oceanography Dictionary
Definition
A geological oceanography concept defining processes, measurements, or products used to describe the seafloor and its history. It applies when operational prerequisites and quality controls are satisfied and produces interpretable observations or derived maps. It does not yield reliable conclusions without validation, uncertainty handling, and integration of multiple evidence types.
Undrained Shear Strength
Engineering & Applied Technologies Dictionary
Definition
Shear stress that a saturated soil sustains at failure under conditions in which no pore‑water drainage occurs during the shearing process; expressed as a total‑stress parameter (commonly Su) and used to assess short‑term stability and design where rapid loading precludes excess pore‑pressure dissipation.