Author(s): Wu Changyu; Ding Jinhua; Zhang Wei
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Keywords: No Keywords
Abstract: In 1998, a seldom flood happened in Yangtze River basin of China. The river level higher than the emergency level lasted in 60~90 days in the area of the middle and down stretch of the river. Thousands of failures took place on the main river embankments by seepage or instability as sub-surface erosion. Among them the most dangerous result is dike break, which rushes dawn violently and often makes huge loses, since it usually happen in a very short moment that people there hardly to prepare for it or to leave in time, just like the situation of Jiujiang city dike in Jiangxi, Paizhouwan and mengxiyuan dikes in Hubei, and Anzhaoyuan dike in Hunan on this period. In order to prevent such disaster happen again, and to find out feasible and suitable treatment way while or after a danger, it is essential to make a thoroughly research on the erosion mechanism of such kind of dangers. So, the case of Jiujiang dike breaking which is the most serious one is studied in this paper.
Year: 2001