水利学报Issue(5)：626-630,5.DOI:10.13243/j.cnki.slxb.20140792
缝隙中脉动压力传播模型的进一步探讨
Further discussion on propagation model of fluctuating pressure within cracks
摘要
Abstract
Development of scour pools and dislodgment of lining slabs downstream of high dams are caused by propagation and superposition of fluctuating pressure waves within cracks. Three models of fluctuating pressure propagation with cracks are proposed, i.e. seepage model, vibrating model and transient model. By theoretical analysis, it is verified that the three models are based on different dynamic aspects to study the mechanism of pressure transmission and are adoptable to different scour stages,but they are uniform in es⁃sence. The seepage model is suitable when the cracks are severely blocked. If the cracks are linked up with each other, the role of hydro-transient is significant and the fluctuating uplift generates consequently. In this condition, the transient model is more reasonable. When the blocks are vibrating randomly within their matrix,the vibrating model is adopted.关键词
脉动压力/渗流模型/振荡流模型/瞬变流模型Key words
fluctuating pressure/seepage model/vibrating model/transient model分类
建筑与水利引用本文复制引用
李爱华,朱江,李成华..缝隙中脉动压力传播模型的进一步探讨[J].水利学报,2015,(5):626-630,5.基金项目
中央高校基本科研业务费专项资金 （）
