Incipient motion of sediment by waves

被引：0

作者：

Dou, GR ^{[1
]}

Dou, XP

Li, TL

机构：

[1] Nanjing Hydraul Res Inst, Nanjing 210029, Peoples R China

[2] Nanjing Inst Hydrol & Water Resources, Nanjing 210024, Peoples R China

来源：

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 2001年 / 44卷 / 03期

关键词：

wave; sediment; incipient motion;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the forces acting on sediment particles are analyzed in all the aspects. Considering the cohesive force between particles, the additional static water pressure induced by the solid-body characteristics of film water and the inertia force of waves, a unified formula of the incipient motion for both coarse and fine particles is defined. The formula can reflect the variation in the initial velocity of fine particles with the volume weight of sediment. The verification of the formula is carried out by use of both experimental data and field observation data accumulated by experts at home and abroad. The verification shows that the formula expresses the law governing the incipient motion of sediment of all particle sizes inclusive of natural sediment and light-weight materials, and thus a basic formula for the study and solution of sediment problems in estuarine and coastal regions is provided.

引用

页码：309 / 318

页数：10