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Vol.53, No.3, PP.139-219
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1
Application of Raspberry Shake 3D Geophone for Monitoring Slope Disasters
53(3):139-145
Hsin-Yu Chen[1]* Ching-Jer Huang[1] Shu-Chin Chen[2] Wei-An Chao[3] Che-Ming Yang[4]
* Corresponding Author. E-mail : dacjvi3@hotmail.com
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2
Estimation of Groundwater Drawdown Due to Subsurface Horizontal Drains for Large Landslides
53(3):146-166
Der-Guey Lin[1] Yu-Po Huang[1] Eugene Choo[2] *
* Corresponding Author. E-mail : eugenechoo66@hotmail.com
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3
Relationship Among Yield Stress, Slump, and Slump Flow of Sediment Slurries
53(3):167-175
Litan Dey[1] Ji-Shang Wang[2] Chyan-Deng Jan[1] *
* Corresponding Author. E-mail : cdjan@ncku.edu.tw
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4
Feasibility Evaluation of Soil Water Index Applied to Large-scale Landslide - A Case Study of T002 Landslide in Chuchi Township, Chiayi County
53(3):176-189
Yi-Jun Liu[1] Yu-Hsin Chang[2] Rong-Jun Chen[3] Hsiao-Chia Yen[3] Su-Chin Chen[4] *
* Corresponding Author. E-mail : scchen@nchu.edu.tw
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5
Quantitative Methodology for Stream Habitat Assessment
53(3):190-201
Shu-Yuan Chen[1] Jaw Dian Chen[1] Chia-Chi Liang[1] Tung-Jer Hu[2]* Ching-Kuang Chung[2]
* Corresponding Author. E-mail : tjhu@ntu.edu.tw
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6
Time Series Analysis of Landslide Volume Along Alishan Expressway – The Example of Kilometers 34 to 97
53(3):202-212
Wan-Tsung Wu Chien-Yuan Chen*
* Corresponding Author. E-mail : chienyuc@mail.ncyu.edu.tw
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Time Series Analysis of Landslide Volume Along Alishan Expressway – The Example of Kilometers 34 to 97
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Wan-Tsung Wu Chien-Yuan Chen*

Abstract
This study collected landslide data along the Alishan Expressway between kilometers 34 and 97 from 2008 to 2018. A time series analysis was conducted to monitor the landslide volume in the study area. We report that the annual precipitation, number of landslides, and landslide volume varied seasonally. The landslide volume in Spring
and Autumn was lower than the four-season average; those of the Summer and Winter were higher than the four-season
average. Precipitation was positively correlated with landslide volume and not directly related to time. After the elimination of seasonal factors, the time series did not exhibit a long-term trend, and yearly cumulative rainfall was a positively correlated with landslide volume. Seasonal factors must be considered in landslide volume estimation to improve disaster mitigation.
Key Words : Alishan Expressway, Time Series Analysis, Landslide Volume.
〔1〕West Coast Expressway Southern Region, Temporary Engineering Office Directorate General of Highways, MOTC, Potz City 613019, Chiayi County, Taiwan
〔2〕Department of Civil and Water Resources Engineering, National Chiayi University, Chiayi City 60004, Taiwan
* Corresponding Author. E-mail : chienyuc@mail.ncyu.edu.tw
Received: 2021/08/19
Revised: 2021/09/06
Accepted: 2021/10/15
7
Application of Ecological Database in Ecological Check of Soil and Water Conservation Projects
53(3):213-219
Tzu-Hsin Yang[1]* Wei-Ling Su[1] Ming-Yuan Wang [2] Yuan-Chuan Weng[3]
* Corresponding Author. E-mail : yangzihsin@gmail.com
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