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Geotechnical Engineering

 

Checklist and Guidelines for Review of Geotechnical
Reports and Preliminary Plans and Specifications

GTR Review for Ground Improvement Techniques

I. Ground Improvement Techniques

In addition to the basic information listed in Section A, if ground improvement techniques are recommended or given as an alternative, are conclusion/recommendations provided in the project foundation report for the following:

  1. For wick drains, do recommendations include the coefficient of consolidation for horizontal drainage, ch, and the length and spacing of wick drains?

        (Yes   /   No   /   Unknown or N/A)

  2. For lightweight fill, do recommendations include

        (Yes   /   No   /   Unknown or N/A)

  3. the material properties (φ, c, γ), permeability, compressibility, and drainage requirements?

        (Yes   /   No   /   Unknown or N/A)

  4. For vibro-compaction, do the recommendations include required degree of densification (e.g., relative density, SPT blow count, etc.), settlement limitations, and quality control?

        (Yes   /   No   /   Unknown or N/A)

  5. For dynamic compaction, do the recommendations include required degree of densification (e.g., relative density, SPT blow count, etc.), settlement limitations, and quality control?

        (Yes   /   No   /   Unknown or N/A)

  6. For stone columns, do the recommendations include spacing and dimensions of columns, bearing capacity, settlement characteristics, and permeability (seismic applications)?

        (Yes   /   No   /   Unknown or N/A)

  7. For grouting, do the recommendations include the grouting method (permeation, compaction, etc.), material improvement criteria, settlement limitations, and quality control?

        (Yes   /   No   /   Unknown or N/A)

*A response other than (yes) or (N/A) for any of these checklist questions is cause to contact the appropriate geotechnical engineer for a clarification and/or to discuss the project.

 

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Updated: 04/07/2011
 

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