江苏水利Issue(9)：5-11,7.
水位波动导致的堤防破坏稳定性分析
Stability analysis of embankment damage caused by water level fluctuations
王俊 1周威 2赵倩 2杨雨峤 2朱洪2
作者信息
- 1. 江苏省通榆河蔷薇河送清水工程管理处,江苏淮安 223001
- 2. 江苏省淮沭新河管理处,江苏淮安 223001
- 折叠
摘要
Abstract
Accurately assessing the mechanism of embankment overflow damage under water level fluctuations is an important challenge in the field of hydraulic engineering.The traditional analysis method assumes that the initial water level of the embankment is a fixed design flood level,ignoring the dynamic characteristics of hydrological processes,resulting in significant deviations in risk prediction.A joint probability model of water level and rainfall was constructed based on Copula function,combined with unsaturated seepage analysis and numerical methods for slope stability.The failure mode of embankments under sudden water level drop and overflow conditions was systematically studied.The results indicate that water level fluctuations increase the probability of overflow compared to traditional methods.The shallow damage caused by tension cracks is the main failure mode in the early stage of water level drop(with a safety factor reduction of more than 40%).The saturated seepage effect on the downstream slope after overflow keeps the instability risk lasting for more than 10 days.关键词
堤坝溢流风险/Copula函数/非饱和渗流/边坡稳定性Key words
risk of embankment overflow/Copula function/unsaturated seepage/slope stability分类
建筑与水利引用本文复制引用
王俊,周威,赵倩,杨雨峤,朱洪..水位波动导致的堤防破坏稳定性分析[J].江苏水利,2025,(9):5-11,7.
