Influence of ground anchors on topographic amplification at slope crests

A. J. Brennan, N. I. Thusyanthan, S. P. G. Madabhushi

    Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

    Abstract

    One feature of earthquake loading in regions containing sloping ground is a marked increase in accelerations at the crests of slopes. Many field cases exist where such increased accelerations were measured. The observed increase in the amount and severity of observed building damage near the edge of cliff-type topographies has been attributed to the topographic amplification. To counter this, it has been shown that anchoring the soil mass responsible for this to the rest of the stable soil mass can reduce the amount of topographic amplification. In this study, dynamic centrifuge modelling will be used to identify the region affected by topographic amplification in a model slope. The soil accelerations recorded will be compared to those measured in a comparable model treated by anchors. In addition, the tension measured in the anchors will be examined in order to better understand how the anchors are transferring the loads and mitigating these amplifications
    Original languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics
    Subtitle of host publicationproceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010)
    EditorsLinda Seward
    Place of PublicationLondon
    PublisherCRC Press
    Pages1101-1106
    Number of pages6
    Volume2
    ISBN (Electronic)978-1-4665-5742-0
    ISBN (Print)978-0-415-59288-8
    DOIs
    Publication statusPublished - 2010
    Event7th International Conference on Physical Modelling in Geotechnics - Zurich, Switzerland
    Duration: 28 Jun 20101 Jul 2010
    http://www.icpmg2010.ch/finalprogramme

    Conference

    Conference7th International Conference on Physical Modelling in Geotechnics
    Abbreviated titleICPMG 2010
    CountrySwitzerland
    CityZurich
    Period28/06/101/07/10
    Internet address

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  • Cite this

    Brennan, A. J., Thusyanthan, N. I., & Madabhushi, S. P. G. (2010). Influence of ground anchors on topographic amplification at slope crests. In L. Seward (Ed.), Physical Modelling in Geotechnics: proceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010) (Vol. 2, pp. 1101-1106). CRC Press. https://doi.org/10.1201/b10554-182