3R – Embankment Subgrade Improvement Zones (HC Rational)

Notes

An internal email from Jamie Beaver to Mike Bailey dated March 9, 2001, documenting the process and rationale used to define subgrade improvement zones for embankment stability analyses. The email details liquefaction reanalysis findings, post-liquefaction undrained residual shear strength calculations, and factor-of-safety results for various zones in the NSA. The author notes the email should be removed from files unless approved by Bailey, as it captures informal working notes that may be incomplete.

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