水利水电科技进展2011，Vol.31Issue(3)：27-30,4.DOI:10.3880/j.issn.1006-7647.2011.03.008
无黏性土层之间渗流接触冲刷机理试验研究
Mechanism of seepage contact scour between cohesionless soil layers
刘杰1
作者信息
- 1. 中国水利水电科学研究院,北京,100048
- 折叠
摘要
Abstract
To distinguish the criteria for contact scour in cohesionless layered soil and to determine the relevant hydraulic gradients are necessary elements for studying seepage control measures. It is a common concern in the engineering field. Based on the experimental data, the geometrical and hydraulic conditions for the generation of contact scour in cohesionless layered soil were illustrated. A functional relationship between the critical hydraulic gradient for the contact scour and characteristic grain size of two soil layers was established. It could be employed to determine whether the contact scour in the two cohesionless soil layers would happen or not. If the potential contact scour was distinguished, the corresponding hydraulic gradient would be calculated. It would be practical for the seepage control of civil structures.关键词
无黏性土/成层结构/渗流/接触冲刷/临界水力比降Key words
cohesionless soil/ layered structure/ seepage/ contact scour/ critical hydraulic gradient分类
建筑与水利引用本文复制引用
刘杰..无黏性土层之间渗流接触冲刷机理试验研究[J].水利水电科技进展,2011,31(3):27-30,4.
