NCHRP Web-Only Document 398: Pile Design for Downdrag: Examples and Supporting Materials from TRB's National Cooperative Highway Research Program, provides appendices to NCHRP Research Report 1112: Design of Piles for Downdrag.
National Academies of Sciences, Engineering, and Medicine. 2024. Pile Design for Downdrag: Examples and Supporting Materials. Washington, DC: The National Academies Press. https://doi.org/10.17226/27864.
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