TY - JOUR
T1 - NUMERICAL ASSESSMENT OF THE IMPACT AREA AND THE GEOMETRY OF A LANDSLIDE DAM
T2 - THE NAN-SHI-KENG LANDSLIDE, TAIWAN
AU - Wu, Jian Hong
AU - Hsieh, Ping Hsuan
N1 - Funding Information:
The authors appreciate the kindly help from the students and colleagues in both Department of Civil Engineering and Disaster Prevention Research Center, National Cheng Kung University during this research
Publisher Copyright:
© 2021,Journal of GeoEngineering.All Rights Reserved
PY - 2021/12
Y1 - 2021/12
N2 - This study predicts the impact area and the stability of a landslide dam of the moving Nan-Shi-Keng landslide in Taiwan for different joint friction angles using a three-dimensional distinct element code, 3DEC. When the landslide occurs, the sliding mass moves longitudinally along the basal sliding surface. Then, rocks spread laterally and ascend after they collide with the hill on the opposite side of the river. Increasing the joint friction angle substantially decreases the impact area and the height of the landslide dam. The computational results reduce the variation of the three-dimensional geometry of the landslide dam from that obtained using empirical formulas and suggest that the landslide dam is stable. The 3DEC is a potentially important tool for local disaster mitigation policy assessments of the impact of large landslides.
AB - This study predicts the impact area and the stability of a landslide dam of the moving Nan-Shi-Keng landslide in Taiwan for different joint friction angles using a three-dimensional distinct element code, 3DEC. When the landslide occurs, the sliding mass moves longitudinally along the basal sliding surface. Then, rocks spread laterally and ascend after they collide with the hill on the opposite side of the river. Increasing the joint friction angle substantially decreases the impact area and the height of the landslide dam. The computational results reduce the variation of the three-dimensional geometry of the landslide dam from that obtained using empirical formulas and suggest that the landslide dam is stable. The 3DEC is a potentially important tool for local disaster mitigation policy assessments of the impact of large landslides.
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U2 - 10.6310/jog.202112_16(4).4
DO - 10.6310/jog.202112_16(4).4
M3 - Article
AN - SCOPUS:85125533845
SN - 1990-8326
VL - 16
SP - 155
EP - 167
JO - Journal of GeoEngineering
JF - Journal of GeoEngineering
IS - 4
ER -