Nonlinear Analysis Method for Evaluating the Seismic Stability of Rock Slopes Considering Progressive Failure

Makoto Ishimaru; Kazumasa Hashi; Kenji Oikawa; Tadashi Kawai

doi:10.1142/S1793431118410087

Nonlinear Analysis Method for Evaluating the Seismic Stability of Rock Slopes Considering Progressive Failure

Makoto Ishimaru, Kazumasa Hashi, Kenji Oikawa, Tadashi Kawai

ENG - Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This study investigated the applicability of a nonlinear analysis method that considers progressive failure to evaluating the stability of rock slopes, including post-earthquake residual displacement. The vibration step of the nonlinear analysis, which begins after residual displacement occurs, was found to match that of a dynamic centrifugal model test. The nonlinear analysis was concluded to be relatively conservative because it calculated a slightly larger residual displacement than that observed during the model test. A real-scale soft rock slope was analyzed, and the results showed that the proposed analysis method is useful for evaluating slope seismic stability, including post-earthquake residual displacements.

Original language	English
Article number	1841008
Journal	Journal of Earthquake and Tsunami
Volume	12
Issue number	4
DOIs	https://doi.org/10.1142/S1793431118410087
Publication status	Published - 2018 Oct 1

Keywords

Soft rock
seismic response analysis
slope

ASJC Scopus subject areas

Oceanography
Geotechnical Engineering and Engineering Geology
Geophysics

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10.1142/S1793431118410087

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title = "Nonlinear Analysis Method for Evaluating the Seismic Stability of Rock Slopes Considering Progressive Failure",

abstract = "This study investigated the applicability of a nonlinear analysis method that considers progressive failure to evaluating the stability of rock slopes, including post-earthquake residual displacement. The vibration step of the nonlinear analysis, which begins after residual displacement occurs, was found to match that of a dynamic centrifugal model test. The nonlinear analysis was concluded to be relatively conservative because it calculated a slightly larger residual displacement than that observed during the model test. A real-scale soft rock slope was analyzed, and the results showed that the proposed analysis method is useful for evaluating slope seismic stability, including post-earthquake residual displacements.",

keywords = "Soft rock, seismic response analysis, slope",

author = "Makoto Ishimaru and Kazumasa Hashi and Kenji Oikawa and Tadashi Kawai",

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T1 - Nonlinear Analysis Method for Evaluating the Seismic Stability of Rock Slopes Considering Progressive Failure

AU - Ishimaru, Makoto

AU - Hashi, Kazumasa

AU - Oikawa, Kenji

AU - Kawai, Tadashi

PY - 2018/10/1

Y1 - 2018/10/1

N2 - This study investigated the applicability of a nonlinear analysis method that considers progressive failure to evaluating the stability of rock slopes, including post-earthquake residual displacement. The vibration step of the nonlinear analysis, which begins after residual displacement occurs, was found to match that of a dynamic centrifugal model test. The nonlinear analysis was concluded to be relatively conservative because it calculated a slightly larger residual displacement than that observed during the model test. A real-scale soft rock slope was analyzed, and the results showed that the proposed analysis method is useful for evaluating slope seismic stability, including post-earthquake residual displacements.

AB - This study investigated the applicability of a nonlinear analysis method that considers progressive failure to evaluating the stability of rock slopes, including post-earthquake residual displacement. The vibration step of the nonlinear analysis, which begins after residual displacement occurs, was found to match that of a dynamic centrifugal model test. The nonlinear analysis was concluded to be relatively conservative because it calculated a slightly larger residual displacement than that observed during the model test. A real-scale soft rock slope was analyzed, and the results showed that the proposed analysis method is useful for evaluating slope seismic stability, including post-earthquake residual displacements.

KW - Soft rock

KW - seismic response analysis

KW - slope

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Nonlinear Analysis Method for Evaluating the Seismic Stability of Rock Slopes Considering Progressive Failure

Abstract

Keywords

ASJC Scopus subject areas

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