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| Titel |
Centrifuge modeling of one-step outflow tests for unsaturated parameter estimations |
| VerfasserIn |
H. Nakajima, A. T. Stadler |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 10, no. 5 ; Nr. 10, no. 5 (2006-10-05), S.715-729 |
| Datensatznummer |
250008196
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| Publikation (Nr.) |
 copernicus.org/hess-10-715-2006.pdf |
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| Zusammenfassung |
| Centrifuge modeling of one-step outflow tests were carried out using a
2-m radius geotechnical centrifuge, and the cumulative outflow and
transient pore water pressure were measured during the tests at multiple gravity
levels. Based on the scaling laws of centrifuge modeling, the measurements
generally showed reasonable agreement with prototype data calculated from
forward simulations with input parameters determined from standard laboratory
tests. The parameter optimizations were examined for three different
combinations of input data sets using the test measurements. Within the
gravity level examined in this study up to 40g, the optimized unsaturated
parameters compared well when accurate pore water pressure measurements were
included along with cumulative outflow as input data. With its capability to
implement variety of instrumentations under well controlled initial and
boundary conditions and to shorten testing time, the centrifuge modeling
technique is attractive as an alternative experimental method that provides
more freedom to set inverse problem conditions for the parameter estimation. |
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