The U.S. Geological Survey, in cooperation with FHWA, compared predicted abutment scour depths, computed with selected predictive equations, with field observations collected at 144 bridges in South Carolina and at eight bridges from the National Bridge Scour Database. Predictive equations published in the 4th edition of Evaluating Scour at Bridges (Hydraulic Engineering Circular 18) were used in this comparison, including the original Froehlich, the modified Froehlich, the Sturm, the Maryland, and the HIRE equations. The comparisons showed that most equations tended to provide conservative estimates of scour that at times were excessive (as large as 158 ft). Equations also produced under-predictions of scour, but with less frequency. Although the equations provide an important resource for evaluating abutment scour at bridges, the results of this investigation show the importance of using engineering judgment in conjunction with these equations.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluation of Abutment Scour Prediction Equations with Field Data


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    2007-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Evaluation of Abutment Scour Prediction Equations with Field Data

    Benedict, Stephen T. | Online Contents | 2007


    Abutment Scour Countermeasures: A Review

    Barkdoll, Brian D. / Ettema, Robert / Kuhnle, Roger et al. | HENRY – Bundesanstalt für Wasserbau (BAW) | 2002

    Freier Zugriff

    Pier and Abutment Scour-New Laboratory Data

    Hager, Willi H. / Unger, Jens / Oliveto, Giuseppe | HENRY – Bundesanstalt für Wasserbau (BAW) | 2002

    Freier Zugriff

    Upper Bound of Abutment Scour in Laboratory and Field Data

    Benedict, Stephen T. | Transportation Research Record | 2016


    Abutment Scour Using Lightweight Bed Material

    Ong, Muk Chen / Lim, Siow-Yong / Yu, Guoliang et al. | HENRY – Bundesanstalt für Wasserbau (BAW) | 2004

    Freier Zugriff