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| Titel |
Simplified approach for locating the critical probabilistic slip surface in limit equilibrium analysis |
| VerfasserIn |
Y. M. Cheng, L. Li, L. L. Liu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 15, no. 10 ; Nr. 15, no. 10 (2015-10-08), S.2241-2256 |
| Datensatznummer |
250119715
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| Publikation (Nr.) |
 copernicus.org/nhess-15-2241-2015.pdf |
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| Zusammenfassung |
| This paper aims to develop a rapid and practical
procedure that can locate the slip surface for a slope with the minimum
reliability index for limit equilibrium analysis at the minimum expense of
time. The comparative study on the reliability indices from different sample
numbers using the Monte Carlo simulation method has demonstrated that the
results from a large enough sample number are related to those from a small
sample number with high correlation indices. This observation has been
tested for many homogeneous and heterogeneous slopes under various conditions
in parametric studies. Based on this observation, the reliability index
for a potential slip surface can be calculated with a small sample number,
and the search for the minimum reliability index and the slip surface can be
determined by a heuristic optimization algorithm. Based on the comparisons
between the critical deterministic and probabilistic slip surfaces for many
different cases, the use of the proposed fast method in locating the
critical probabilistic slip surface is found to perform well, which is
suitable for normal routine analysis and design works. |
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