Modelling the settlement behaviour of a strip footing on sloping sandy fill under cyclic loading conditions
| Autor: | M. J. Alam, Carthigesu T. Gnanendran, S.R. Lo |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
geography geography.geographical_feature_category business.industry Settlement (structural) Numerical analysis 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Structural engineering Geotechnical Engineering and Engineering Geology 0201 civil engineering Computer Science Applications Cyclic loading Geotechnical engineering business Levee 021101 geological & geomatics engineering |
| Zdroj: | Computers and Geotechnics. 86:181-192 |
| ISSN: | 0266-352X |
| DOI: | 10.1016/j.compgeo.2017.01.010 |
| Popis: | This paper investigates the settlement behaviour of a strip footing seating on the crest of an embankment and subjected to cyclic loading. The embankment fill is a dense sand and the issue is the gradual accumulation of settlement over a large number of load repetitions. Cyclic triaxial tests were first conducted to develop a consistent but simple material model for numerical implementation. Particular emphasis was placed on linking the stress-strain behaviour of an unload-reload cycle to the accumulation of permanent strain, with only five input parameters required to model the cyclic behaviour. The material model was implemented in a numerical analysis to compute the settlement behaviour obtained from model tests conducted by another researcher. It is pertinent to highlight that the same soil, compacted to same density at same moisture content, was used for both the cyclic triaxial tests and model tests. Reasonable to good agreement between the experimental and numerical results was achieved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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