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Direct search for minimum reliability index of earth slopes

Bhattacharya, G. / Jana, D. / Ojha, S. / Chakraborty, S.

The paper presents a numerical procedure for locating the surface of minimum reliability index beta_min for earth slopes. The procedure uses a formulation similar to that used to search for the surface of minimum factor of safety FS_min in a conventional slope stability analysis. The advantage of the formulation lies in enabling a direct search for the critical probabilistic surface by utilizing an existing deterministic slope stability algorithm with the addition of a simple module for the calculation of the reliability index beta. Applications to several cases have helped to elucidate the successful working of the procedure.

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Direct search for minimum reliability index of earth slopes

Bhattacharya, G. / Jana, D. / Ojha, S. / Chakraborty, S.

The paper presents a numerical procedure for locating the surface of minimum reliability index beta_min for earth slopes. The procedure uses a formulation similar to that used to search for the surface of minimum factor of safety FS_min in a conventional slope stability analysis. The advantage of the formulation lies in enabling a direct search for the critical probabilistic surface by utilizing an existing deterministic slope stability algorithm with the addition of a simple module for the calculation of the reliability index beta. Applications to several cases have helped to elucidate the successful working of the procedure.

Direct search for minimum reliability index of earth slopes

Bhattacharya, G. / Jana, D. / Ojha, S. / Chakraborty, S.

The paper presents a numerical procedure for locating the surface of minimum reliability index beta_min for earth slopes. The procedure uses a formulation similar to that used to search for the surface of minimum factor of safety FS_min in a conventional slope stability analysis. The advantage of the formulation lies in enabling a direct search for the critical probabilistic surface by utilizing an existing deterministic slope stability algorithm with the addition of a simple module for the calculation of the reliability index beta. Applications to several cases have helped to elucidate the successful working of the procedure.

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Title:

Direct search for minimum reliability index of earth slopes

Contributors:

Bhattacharya, G. (author) / Jana, D. (author) / Ojha, S. (author) / Chakraborty, S. (author)

Published in:

Computers and Geotechnics ; 30 ; 455-462

Publication date:

2003

Size:

8 Seiten, 30 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0266-352X(03)00059-4

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Unfallverhütung , Algorithmus , Wahrscheinlichkeit , numerisches Verfahren

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