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Vol.45, No.4, PP.217-273
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1
Establishing a New Susceptibility Model for Landslides in Urban Areas: A Case Study of Taipei City
45(4):217-224
Po-Chuan Chi [1]* Che-Wei Shen[1] Shu-Yeong Chi [1] Li-Yuan Huang[2] Shih-Yuan Lin[2] Sin-Yuan Pan[2]
* Corresponding Author. E-mail : pcchi@sinotech.org.tw
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Establishing a New Susceptibility Model for Landslides in Urban Areas: A Case Study of Taipei City
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Po-Chuan Chi [1]* Che-Wei Shen[1] Shu-Yeong Chi [1] Li-Yuan Huang[2] Shih-Yuan Lin[2] Sin-Yuan Pan[2]

Abstract
Recent studies of regional landslide susceptibilities have been approached through multivariate statistics, taking only natural causes into account (viz. terrain, geology or hydrology variants). They offer, however,limited predictive accuracy for predicting rare events in urban areas and the effects of man-made construction. Thus,this study establishes a new susceptibility mode, taking into consideration the effects of construction (including density
of structures, density of roads, and disadvantageous index of man-made structures). The rainfall of Typhoon Nari,
a well known extreme rainfall event in Taipei city, was used as the triggering factor in the susceptibility model. The
results show that the accuracy reached 76.9% for both scenarios with natural causes and the effects of construction.Among these factors, the most crucial role was played by the disadvantageous index of man-made structures in the model. This study also suggests a set of thresholds for susceptibility classification and verifies its suitability when applied to other typhoon events after 2000.
Key Words : Buffer strips, SWMM, Vollenweider model, Nonpoint Source Pollution.
〔1〕Disaster Prevention Technology Research Center, Sinotech Engineering Consultants, INC., Taiwan.
〔2〕Geotechnical Engineering Office, Public Works Department, Taipei City Government, Taiwan.
* Corresponding Author. E-mail : pcchi@sinotech.org.tw
Received: 2013/12/20
Revised: 2014/02/05
Accepted: 2014/07/26
2
The Influence of Topography and Geology on the Sedimentation in the Upstream Area of the Lan-Yang Catchment
45(4):225-233
Ke-Jian Shou[1]* Li-Yuan Feit[2] Mian-Ming Chen[2] Jiun-Her Linang[2] Yi-Ting Huang[1] Jia-Fei Lin[1]
* Corresponding Author. E-mail : kjshou@dragon.nchu.edu.tw
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3
Applying Cone Penetration Testing and Electrical Resistivity Tomography to Estimate the Soil-bedrock Interface in Colluvium
45(4):234-242
Tsung-Hsuan Lu Wei-Li Liang*
* Corresponding Author. E-mail : liangwl@ntu.edu.tw
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4
The Influence of Bedrock Location and Soil Characteristics on Rainfall-Runoff and Large-Scale Landslides
45(4):243-256
Chen-Yu Chen[1][2]* Masaharu Fujita[2] Daizo Tsutsumi [2]
* Corresponding Author. E-mail : cychen59@gmail.com
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5
The Landslide Susceptibility Model Based on Landslide Ratio by using Logistic Regression
45(4):257-265
Chun-Hung Wu*
* Corresponding Author. E-mail : chhuwu@fcu.edu.tw
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6
Investigation on Temperature Regimes of the Air, Streamflow and Top Soil Layers in the Riparian Area of the Lienhuachih No.3 Experimental Watershed
45(4):266-272
Shiang-Yue Lu* Liang-Shin Hwang Ho-Chiao Fu
* Corresponding Author. E-mail : shiang@tfri.gov.tw
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