Levee reliability analyses for various flood return periods - A case study in southern Taiwan

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Title:	Levee reliability analyses for various flood return periods - A case study in southern Taiwan
Authors:	黃文昭;Huang, W.-C.;Yu, H.-W.;Weng, M.-C.
Contributors:	工學院土木工程學系
Keywords:	Analysis;Bridges;Canals;Case studies;Design;Dikes (Engineering);Disasters;Failure;Failure analysis;Failure mechanisms;Failures;Floods;Friction;Heavy rainfall;Hurricanes;Levees;Levees & battures;Parameters;Particle size;Rain;Rainfall;Reliability;Reliability analysis;Retaining walls;Scouring;Shear strength;Sliding;Slopes;Slumping;Stability;Stability analysis;Suburban areas;Variability;Water depth;Water levels
Date:	2015-04-24
Issue Date:	2026-04-21 13:56:03 (UTC+8)
Publisher:	European Geosciences Union;Katlenburg-Lindau: Copernicus Publications
Abstract:	摘要： In recent years, heavy rainfall conditions have caused disasters around the world. To prevent losses by floods, levees have often been constructed in inundation-prone areas. This study performed reliability analyses for the Chiuliao First Levee in southern Taiwan. The failure-related parameters were the water level, the scouring depth, and the in situ friction angle. Three major failure mechanisms were considered: the slope sliding failure of the levee and the sliding and overturning failures of the retaining wall. When the variability of the in situ friction angle and the scouring depth are considered for various flood return periods, the variations of the factor of safety for the different failure mechanisms show that the retaining wall sliding and overturning failures are more sensitive to the change of the friction angle. When the flood return period is greater than 2 years, the levee could fail with slope sliding for all values of the water level difference. The results of levee stability analysis considering the variability of different parameters could aid engineers in designing the levee cross sections, especially with potential failure mechanisms in mind. 出版者： Katlenburg-Lindau: Copernicus Publications 出版日期： 2015-04-24 出處： Natural hazards and earth system sciences, 2015-04, Vol.15 (4), p.919-930 資源來源： Agricultural & Environmental Science Collection 版權： COPYRIGHT 2015 Copernicus GmbH 版權： 2015. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 1684-9981 識別號： ISSN: 1561-8633 識別號： EISSN: 1684-9981 識別號： DOI: 10.5194/nhess-15-919-2015
Appears in Collections:	[Department of Civil Engineering] journal & Dissertation

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