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Vol.48, No.1, PP.1-62
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1
Feasibility Analyses of River Sediment Estimation and Mountain Mapping by UAV Techniques
48(1):1-13
Wei Chang[1] Yu-Shen Hsiao[1] * Jung-Chieh Chang[1] [2]
* Corresponding Author. E-mail : yshsiao@nchu.edu.tw
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2
Rainfall Seepage-induced Stability Analyses of Unsaturated Slopes with Tie-back Retaining Piles
48(1):14-26
Der-Guey Lin [1] Sheng-Hsien Wang[2] Jui-Ching Chou [3] Sheng-Fu Sheu [4]*
* Corresponding Author. E-mail : sanford877@yahoo.com.tw
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Rainfall Seepage-induced Stability Analyses of Unsaturated Slopes with Tie-back Retaining Piles
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Der-Guey Lin [1] Sheng-Hsien Wang[2] Jui-Ching Chou [3] Sheng-Fu Sheu [4]*

Abstract
During the raining season in Taiwan, heavy rainfall often causes landslides, debris flows and collapses on slopes. The tie-back retaining pile method is one of the most popular methods used for slope rehabilitation. In the
past, the infiltration and seepage behaviors of slopes during rain fall have usually been ignored in the stability analyses. In this study, a large scale test on the infiltration and seepage behaviors of a slope is modeled using the three-dimensional finite element program, PLAXIS 3D, to validate and calibrate the numerical model. Then, a model of an unsaturated
slope consisting of a homogeneous layer of the colluvium was established for a series of slope stability analyses.
Meanwhile, the effects of infiltration and seepage behavior and the tie-back retaining pile system on the slope stability under different water table levels and rainfall patterns were investigated.
Key Words: Rainfall infiltration, tie-back retaining pile, slope stability, PLAXIS 3D.
〔1〕Department of Soil and Water Conservation, National Chung Hsing University, Taiwan, R.O.C.
〔2〕Sinotech Engineering Consultants, Ltd., Taipei, Taiwan, R.O.C.
〔3〕Hwa-Sheng Eng. Consultants Co., Ltd., Miaoli, Taiwan, R.O.C.
* Corresponding Author. E-mail : sanford877@yahoo.com.tw
Received: 2016/08/24
Revised: 2016/12/13
Accepted: 2017/03/21
3
Establishment and Application of Evaluation Procedure of Dam Removal for Decision Support in Taiwan
48(1):27-35
Hsiao-Wen Wang* Wei-Cheng Kuo Shang-Lin Kuo
* Corresponding Author. E-mail : whw82@mail.ncku.edu.tw
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4
Recent Changes in Groundwater Storage in Jhuoshuei River Basin, Taiwan
48(1):36-43
Chia-Chi Huang Kun-Ta Lin Hsin-Fu Yeh*
* Corresponding Author. E-mail : hfyeh@mail.ncku.edu.tw
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5
A Rainfall-based Warning Model for Predicting Landslides Using QPESUMS Rainfall Data
48(1):44-55
Chen-Yu Chen[1]* Wei-Ze Liou [1][2] Chia-Hsiang Hsu [3]
* Corresponding Author. E-mail : cychen59@gmail.com
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6
Characteristics of the Development of Erosion and the Dynamics of Gravelly Debris Flow in the Houyenshan
48(1):56-62
Yan-Xin Zhong Chia-Ming Lo*
* Corresponding Author. E-mail : cmlo@nuu.edu.tw
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