无粘性土堤的溃堤模型

Model for breach growth in noncohesive soil dikes

以实验室及现场模型试验中观察到的溃堤机理为基础,开发了一个无粘性土(沙)堤的溃堤模型。模型用现场试验的数据校准,又用实验室试验的数据进行验证,计算与观测值间的拟合结果令人满意。模型还对一个溃堤实例进行了模拟,计算结果与目测报告基本一致。

Based on the mechanism of breach erosion observed in various tests in the laboratory and field, a mathematical model for breach growth simulation in noncohesive?dikes (sand?dikes) has been developed. The model has been calibrated with the data of a field experiment and verified with the data of a laboratory experiment, yielding good agreement. The model has also been used for simulation of the failure of a prototype dike, computed results are more or less in agreement with an eye?witness report.