DOI: 10.1007/s11069-020-03862-8
论文题名: An analytical process-based approach to predicting breach width in levees constructed from dilatant soils
作者: van Damme M.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 101, 期: 1 起始页码: 59
结束页码: 85
语种: 英语
中文关键词: Breach
; Data
; Erosion
; Flood risk
; Levee
英文关键词: analytical framework
; calibration
; flood control
; levee
; prediction
; risk assessment
; soil erosion
; weir
; Netherlands
英文摘要: An accurate prediction of the breach widening rate after the onset of a levee failure is essential for flood risk assessments. Current state-of-the-art analytical breach growth relations are empirical in nature. The large variety in loading conditions, levee design, and levee construction material, combined with the limited amount of accurate measurements of breach growth, make the development of accurate empirical breach growth relations challenging. In this paper, a process-based breach widening relation is presented for levees constructed of dilatant soils. The process-based relation is derived from the weir flow equation and a process-based erosion equation. The breach widening relation can account for the effects of variations in soil parameters. For those cases for which soil parameters are unknown, a calibrated catch-all-coefficient is provided. The relation is benchmarked against the state-of-the-art empirical breach growth relation used in the Netherlands and validated against data on historical levee failures and experimental data. © 2020, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168777
Appears in Collections: 气候变化与战略
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作者单位: Delft University of Technology, STEVINWEG 1, Delft, 2628 CN, Netherlands
Recommended Citation:
van Damme M.. An analytical process-based approach to predicting breach width in levees constructed from dilatant soils[J]. Natural Hazards,2020-01-01,101(1)