The Rate of Headcut Migration of Cohesive Soil Homogeneous Embankment

摘要：

Through the physical model test of the headcut migration rate and the threshold friction velocity test of cohesive soil, it can be found that the water content has an important influence on the breach process of earth dam. With the same degree of compaction (in this paper, the degree of compaction is close to 100%), the larger the water content is, the lower the headcut migration rate is. After the water content exceeds the optimum moisture content, the speed is very slow. The smaller the degree of compaction is, the faster the headcut moves. In this paper, the relationship between the threshold friction velocity U.c and material rate parameters C is established, which can significantly improve predicating accuracy of the headcut migration rate.

作者: Xie Min Shen Dengle

作者单位: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Resear Chuzhou Survey and Design Institute of Water Conservancy and Hydropoxver, Chuzhou, 239000

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: 485-490

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）