摘要
采用小尺寸模型对层状非均质堤基管涌发展过程进行了试验模拟,对非均质堤基管涌发展过程、管涌破坏临界水头进行了分析,并采用Mseep程序对试验结果进行验证.结合模型试验和Mseep程序计算,验证了Sellmejier管涌预测模型对非均质堤基的适用性,推导了非均质堤基管涌预测模型公式.通过两次施加水头的试验方法,初步分析了历史管涌对堤基整体抗渗能力的影响.
Small scale experiments are performed to simulate piping in dike foundations with heterogeneity.The influence of the heterogeneity on the dike safety has to be investigated by experiments.An addition to the rule of Sellmeijer for the heterogeneous configurations has been derived by model validation based on these experimental works.The influence of present piping channels on dike safety has also been analyzed.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2012年第5期77-81,共5页
Journal of Zhengzhou University（Engineering Science）
基金
国家国际科技合作项目(2010DFA74520)
中国水利水电科学研究院科研专项(防集1132)
关键词
管涌
非均质堤基
预测模型
历史管涌
piping
heterogeneity
prediction rule
present piping channel
