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Title: Coupled Stability Analysis of Rainfall-Induced Landslide: A Case Study in Taiwan Piedmont Area
Authors: Hung-Chieh Lo;Shih-Meng Hsu;Su-Yun Chi;Cheng-Yu Ku
Contributors: 國立臺灣海洋大學:河海工程學系
Date: 2012-04-26
Issue Date: 2017-04-27T01:28:41Z
Publisher: Geotechnical Special Publication
Abstract: Abstract:This study presents a 2D time-dependent infiltration-seepage-stability coupled hydrogeological model to simulate the seepage and slope stability of an active landslide site in northern Taiwan. The conceptual model and corresponding hydraulic and mechanical parameters applied in the model were based on a series of in-situ investigations and laboratory experimental results. A seepage analysis was conducted, and the model was calibrated and verified from the field monitoring data in order to minimize the difference between the computed pore pressures and the observed piezometric levels. A stability analysis coupled with the results of seepage analysis was performed to determine the slip potential of the landslide site under the rainfall brought up by two typhoon events. Various designed rainfall with different patterns, intensity and accumulated amount was then introduced in the model. The relationship between different rainfall characteristics and stability of the landslide site was identified and provided a good indication for the risk management under various rainfall conditions.
Appears in Collections:[Department of Harbor and River Engineering] Periodical Articles

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