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Reliability Analysis of Long Multi-Segment Earth Slopes
A three-dimensional stochastic model, proposed earlier for single-segment earth slopes having statistically homogeneous cross-sectional properties, is extended to multi-segment cases. For the two-segment model it is shown how the probability of a local failure, centered at a point near the segment boundary, rises or falls in function of various adjacent segment properties such as their mean safety factors. The method also enables evaluation of the "system reliability" for multi-segmented long linear slopes. The case study for the two-segment case indicates that single- and multi-segment models may be expected to yield significantly different system reliabilities. The proposed multi-segment model is suitable for use in risk assessment and management of this class of civil infrastructure systems and for extension to the case when there are external load conditions such as earthquake-induced shaking.
Reliability Analysis of Long Multi-Segment Earth Slopes
A three-dimensional stochastic model, proposed earlier for single-segment earth slopes having statistically homogeneous cross-sectional properties, is extended to multi-segment cases. For the two-segment model it is shown how the probability of a local failure, centered at a point near the segment boundary, rises or falls in function of various adjacent segment properties such as their mean safety factors. The method also enables evaluation of the "system reliability" for multi-segmented long linear slopes. The case study for the two-segment case indicates that single- and multi-segment models may be expected to yield significantly different system reliabilities. The proposed multi-segment model is suitable for use in risk assessment and management of this class of civil infrastructure systems and for extension to the case when there are external load conditions such as earthquake-induced shaking.
Reliability Analysis of Long Multi-Segment Earth Slopes
Vanmarcke, Erik (author) / Otsubo, Yuki (author)
Geo-Congress 2013 ; 2013 ; San Diego, California, United States
2013-03-04
Conference paper
Electronic Resource
English
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