水道港口2016，Vol.37Issue(6)：635-640,6.
晋江围海工程黏性原状土冲刷率试验研究
Scour rate experimental research on cohesive undisturbed soil from the reclamation project in Jinjiang
吴月勇 1陈国平 1严士常 1周雅 1钟雄华1
作者信息
- 1. 河海大学港口海岸及近海工程学院海岸灾害与防护教育部重点实验室，南京210098
- 折叠
摘要
Abstract
Based on physical model test, six groups samples of silt, eight groups samples of fine sand and seven groups samples of medium coarse sand from the reclamation project in Jinjiang, Fujian were tested for the scour rate. The scour rate formula of cohesive undisturbed soil was analyzed according to the measured scour rate and bed shear stress. The impact of median diameter on the value of the scour rate formula was considered, the energy index and scour coefficient of scour rate formula for the silt, fine sand, medium coarse sand were obtained separately. The text result shows that for those silt, the scour rate and the relative residual shear stress is proportional to the 0.5, there is a linear relationship between scour rate and the relatively residual shear stress for fine sand, besides, the scour rate and relatively surplus shear stress of medium coarse sand is proportional to the 1.25. And the scour coeffi⁃cient has a tendency to decrease with the increasing of median diameter, the scour coefficient of medium coarse sand only one⁃tenth of the silt. In addition, the scour coefficient of silt and fine sand have a non⁃linear tendency to decrease with the increasing of clay content, however, the scour coefficient of the medium coarse sand which have smaller particle clay content has no significant relationship with the increasing of clay particles.关键词
黏性原状土/中值粒径/冲刷率/冲刷系数/黏性颗粒Key words
cohesive undisturbed soil/median diameter/scour rate/scour coefficient/clay particles分类
建筑与水利引用本文复制引用
吴月勇,陈国平,严士常,周雅,钟雄华..晋江围海工程黏性原状土冲刷率试验研究[J].水道港口,2016,37(6):635-640,6.
