Similarity Criteria of Homogeneous Embankment Failure due to Overtopping Flow

摘要：

The Process of dam breach is a strongly nonlinear process and very complex. The research of similarity criteria of dam breach has no breakthrough as yet. According to five highest prototype tests of the world and twenty laboratory tests conducted by Nanjing Hydraulic Research Institute, the mechanism of homogeneous embankment failure due to overtopping flow is headcut. Based on this mechanism and results of tests, head-cut migration rate similarity scare λR and the time similarity scare of flow process A, of homogeneous embankment failure due to overtopping flow were derived. According to the similarity criteria several tests were conducted for two field tests. The results verified the similarity criteria are available and it could be used to s simulate the breach process for homogeneous embankment failure due to overtopping flow.

作者: Li Yun Wang Xiaogang Xuan Guoxiang Liu Huojian

作者单位: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute Nanjing, 210029

会议类型: 国际会议

会议名称: International Symposium on Hydraulic Physical Modeling and Field Investigation(2010 水工模型试验和原型观测技术国际研讨会)

会议地点: 南京

会议语种:英文

页码: 232-238

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）