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Influence of ground anchors on topographic amplification at slope crests

Influence of ground anchors on topographic amplification at slope crests

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Original languageEnglish
TitlePhysical Modelling in Geotechnics
Subtitleproceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010)
EditorsLinda Seward
Place of publicationLondon
PublisherCRC Press
Publication date2010
Pages1101-1106
Number of pages6
Volume2
ISBN (Electronic)978-1-4665-5742-0
ISBN (Print)978-0-415-59288-8
DOIs
StatePublished

Conference

Conference7th International Conference on Physical Modelling in Geotechnics
CountrySwitzerland
CityZurich
Period28/06/101/07/10
Internet addresshttp://www.icpmg2010.ch/finalprogramme

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

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