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Vol.45, No.2, PP.79-142
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1
A Study on Seepage Erosion Behavior within Two Lay-ers using Permeability Tests and FDM
45(2):77-84
Yu-Ting Su* Ming-Lang Lin
* Corresponding Author. E-mail : r00521104@ntu.edu.tw
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A Study on Seepage Erosion Behavior within Two Lay-ers using Permeability Tests and FDM
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Yu-Ting Su* Ming-Lang Lin

Abstract
Seepage erosion occurs when finer particles are dragged out from other soil particles by water.This type of erosion causes progressive failure inward into the slopes and slope instabilities. Therefore, it is necessary to explore the behavior of seepage erosion in order to prevent such failure in slopes. According to results of field investigations,
we do seepage erosion experiments in a laboratory to understand the erosion behavior. After that, we utilize FEM soft-ware – FLAC5.0 in order to determine the feasibility of numerical analysis in simulating seepage erosion behavior.
Key Words : Hydraulic conductivity, two layers, seepage erosion, FEM.
Department of Civil Engineering, National Taiwan University, Taipei, Taiwan.
* Corresponding Author. E-mail : r00521104@ntu.edu.tw
Received: 2013/10/25
Revised: 2014/01/02
Accepted: 2014/03/19
2
Assessment of The Location of Potential Shallow Slope Failure with Soil Depth and Vertical Soil Structure Data
45(2):85-94
Meng-Chun Chan Wei-Li Liang*
* Corresponding Author. E-mail : liangwl@ntu.edu.tw
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3
Study on The Mechanical Behavior of Gravel Formations Using Numerical Methods
45(2):95-102
Kuang-Tsung Chang You-Hsu Chen Min-Chieh Cheng*
* Corresponding Author. E-mail : book31242@gmail.com
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4
Annual Rainfall Erosivity Index Estimation Based on Daily, Monthly and Annual Precipitation
45(2):103-109
Ming-Hsi Lee[1]* Huan-Hsuan Lin[2] Yu-Ting Chan[1]
* Corresponding Author. E-mail : mhlee@mail.npust.edu.tw
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5
The Characteristics of Dip-Slope Landslides Induced by The Groundwater in Free-End Experiments
45(2):110-118
Su-Chin Chen[1] Kuan-Han Chen[1] Chun-Hung Wu[2]*
* Corresponding Author. E-mail : chhuwu@fcu.edu.tw
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6
Evaluation of Priority Order for The Landslide Treatment Using Biodiversity Index in A Watershed
45(2):119-127
Tien-Shui Chen[1] Cheng-Yu Lin[2] Shih-Hua Ho[2] Chao-Yuan Lin[2]* Yaw-Long Yang[1]
* Corresponding Author. E-mail : cylin@water.nchu.edu.tw
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7
NETSTARS Improvement with Pier Scouring - A Case Study of Pa-Chang River
45(2):128-139
Hsiao-Wen, Wang[1] Hui-Ming, Hsieh[2]* Guan-Ming, Luo[1]
* Corresponding Author. E-mail : hmhsieh@tsu.edu.tw
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8
Raked Pile Behavior Modeling for Analyzing Resistance of Slope Movement
45(2):140-146
Chien-Yuan Chen* Chi-Xun Tsai
* Corresponding Author. E-mail : chienyuc@mail.ncyu.edu.tw
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