Evaluation of an enhanced FS method for finding the initiation time of earthquake-induced landslides

Guan Wei Lin, Ching Hung, Huei Sian Syu

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

In this paper, an examination of an enhanced FS method used for finding the initiation time of earthquake-induced landslides is presented. Validation was conducted via comparisons between the predicted and reported results of a benchmark site subjected to two major earthquake events: at Chi-Chi in 1999 (7.6 M w ) and Meinong in 2016 (6.4 M w ). To further validate the applicability of the ground motions utilized in this study, a finite element analysis was also carried out. Based on the results, satisfactory agreement between the predictions obtained by the enhanced FS method and the observed results in terms of the landslide initiation time was realized. Conclusions drawn from the study show that (a) the enhanced FS method can be both efficient and practical in finding the likely initiation time of a landslide, and it was found that the initiation time of the Tsaoling landslide during the Chi-Chi earthquake lay between 37.5 and 38.5 s; (b) when validating the enhanced FS method, the friction angle of 38.5 o obtained from direct shear tests rather than a smaller value of 20.8 o obtained from rotary-shear high-velocity friction experiments, led to a more appropriate results; and (c) the failure surface obtained by finite element codes was satisfactory when compared to the observed result.

原文English
頁(從 - 到)497-506
頁數10
期刊Bulletin of Engineering Geology and the Environment
78
發行號1
DOIs
出版狀態Published - 2019 2月 4

All Science Journal Classification (ASJC) codes

  • 岩土工程與工程地質
  • 地質學

指紋

深入研究「Evaluation of an enhanced FS method for finding the initiation time of earthquake-induced landslides」主題。共同形成了獨特的指紋。

引用此