Rapid Levee Assessment For Reliability And Risk Analysis

摘要

A rapid and comprehensive assessment of field conditions is an essential first step in the application of reliability and risk concepts to the analysis of levee safety. This paper presents a review of levee failure causes and mechanisms and describes methods that can be used to quickly and effectively incorporate reliability and risk into levee maintenance or repair decision-making processes. The methods include rapid field assessment of levee conditions; analysis of the causes and mechanisms of levee failure; and ranking levees by a first-order estimate of reliability. An example application of the methods is presented based on work currently underway on the Green River levee system in King County, Washington.