Application of DDA to simulate characteristics of the Tsaoling landslide

被引：161

作者：

Wu, Jian-Hong ^{[1
,2
]}

Chen, Chun-Hwa ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Civil Engn, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Sustainable Environm Res Ctr, Tainan 70101, Taiwan

来源：

COMPUTERS AND GEOTECHNICS | 2011年 / 38卷 / 05期

关键词：

Tsaoling landslide; Post-failure simulation; Discontinuous deformation analysis; Chi-Chi Earthquake; DISCONTINUOUS DEFORMATION ANALYSIS; CHI-CHI EARTHQUAKE; GPS DATA; TAIWAN;

D O I：

10.1016/j.compgeo.2011.04.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This study simulates the kinematic behavior of sliding blocks of rock in the earthquake-induced Tsaoling landslide using seismic discontinuous deformation analysis (DDA). We assume sliding rocks are elastic blocks. Detailed joint shear strength parameters are set in DDA in a manner compatible with what is known about the Tsaoling landslide mechanisms. Landslide run-out distance, information from survivors, and the post-failure topography are used to constrain the computational results. Calculations demonstrate that sliding rocks from the ground surface decoupled from those near the basal shear surface during the landslide. Local residents survived because surficial rocks were never deeply buried during the landslide. Additionally, shear strength parameters of material in the deposition area strongly govern final deposit topography. Computational results correlate well with actual post-failure topography. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：741 / 750

页数：10

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