Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
(OP)
Can anyone point me towards work that has been done on this please
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Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
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RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
Mike Lambert
RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
My preference in order of reliability for Su:
1. Unconsolidated undrained triaxial
2. Unconfined compression
3. In-situ vane shear
4. Mini vane shear
5. Pocket Penotometer
6. SPT blow count coorelation
My preference in order of reliability for Phi:
1. Consolidated undrained with pore water pressure measurements traixial
2. Consolidated drained triaxial
3. Fully softened correlation based on phi and clay fraction
4. Peak phi based on plasticity index
Mike Lambert
RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
Likely an unpopular opinion, but I would put SPT correlation above PP and mini shear vane!!! I dont do many PP or MSV so maybe I dont have enough information....
RE: Meaningful empirical correlation between Su and Phi in cohesive silty clay soils
I agree SPT, PP, mini torvanes all have their problems. In some soils one is better than the others, in other soils the ranking switches. Really depends on teh soils and, in the case of the PP and mini torvanes it depends on who is running the test.
Mike Lambert