Slope management criteria for Alishan Highway based on database of heavy rainfall-induced slope failures

被引：32

作者：

Lee, Der-Her ^{[1
]}

Lai, Ming-Huang ^{[1
]}

Wu, Jian-Hong ^{[1
]}

Chi, Yun-Yao ^{[2
]}

Ko, Wu-Te ^{[3
]}

Lee, Bi-Ling ^{[1
]}

机构：

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

[2] Chang Jung Christian Univ, Dept Land Management & Dev, Tainan 70101, Taiwan

[3] Cheng Shiu Univ, Dept Civil Engn & Engn Informat, Kaohsiung 833, Taiwan

来源：

ENGINEERING GEOLOGY | 2013年 / 162卷

关键词：

Rainfall; Slope failure; Statistics; Warning system; Slope management; Taiwan; LANDSLIDES; THRESHOLDS; INTENSITY; MODEL;

D O I：

10.1016/j.enggeo.2013.04.012

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In this paper, a study of slope failures along the Alishan Highway (locally, known as "Tai-18") is carried out. An innovative empirical model is developed based on 15-year records of typhoon rainfall-induced slope failures. This model is intended for assessing the likelihood of slope failure along Tai-18 in the future. The rainfall data considered in the proposed model include the maximum hourly rainfall and the effective cumulative rainfall. The effective cumulative rainfall is defined at the point when the curve of cumulative rainfall goes from steep to flat. Then, a simple criterion is established for assessing the potential of slope failure and issuing warning and/or closure for Tai-18 during a future extreme rainfall. Slope failures during Typhoon Saola in 2012 and those in Japan demonstrate that the new empirical model is effective and applicable to other regions with similar rainfall conditions. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：97 / 107

页数：11

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