Editorial Note - Vol. 13, No. 1, 2019-Article

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DFI Journal Volume 13, Issue 1 (2019) introduces the first of three issues planned for the year and marks the journal’s move to self-publishing, with online access through DFI and print copies available. Articles now include DOI identifiers, and authors are encouraged to use ORCID.<br /><br />The issue features five technical contributions. Researchers from the University of Wyoming analyze 26 driven piles in intermediate geomaterials and recommend changes to resistance factors; they also confirm WEAP bearing-graph analysis as a reliable construction-control method. A review of foundation reuse warns against relying uncritically on original design assumptions and recommends static capacity-estimation methods and Bayesian updating to combine available evidence.<br /><br />Another study modifies strong-rock p-y curves to avoid an abrupt loss of predicted lateral resistance after peak capacity, setting residual strength at large deformations to 20% of ultimate resistance. A Los Angeles case study examines soil-creep forces on deep foundations supporting hillside residential construction and offers modeling and design recommendations. The issue concludes with a review of drilled-shaft torsional resistance, identifying a shortage of research and a need for full-scale load tests to improve predictions.<br /><br />The editors invite readers to provide feedback and submit future contributions.

Keywords

DFI Journal

Volume 13 Issue 1

self-publishing

DOI

ORCID

driven piles

WEAP analysis

foundation reuse

Bayesian updating

drilled-shaft torsional resistance