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- Recommend the most suited device to (i) collect a seabed surface sample, (ii) collect a sediment core, and (iii) conduct in-situ geotechnical testing of the seabed for the following conditions. Regarding (iii), comment on expected penetration depths.
- Sandy nearshore environments with significant currents and waves.
- Estuary with mostly muddy to silty sediments, significant tidal currents, negligible wave action.
- Deep ocean environments with water depth > 500 m.
- There are no prior information available about the site.
- Draw a conceptual sketch of a CPT including sensors and deployment mechanism.
- Describe step by step how to calculate undrained shear strength from CPT testing.
- Discuss pros and cons of CPT versus FFP testing.