By considering concealing and revealing features of non-uniform sediments, and using analytical method of theoretical mechanics, vectorial competent bottom velocity formulations at arbitrary faces for both concealing ...By considering concealing and revealing features of non-uniform sediments, and using analytical method of theoretical mechanics, vectorial competent bottom velocity formulations at arbitrary faces for both concealing and revealing sediments were given respectively. A series of relations similar to existed formulations were obtained by simplified the formulations.展开更多
In this paper, with the starting velocity experiments of natural cohesive sedimentation, an assumption concerning the starting mechanism of cohesive sedimentation was proposed and a formula to determine the starting v...In this paper, with the starting velocity experiments of natural cohesive sedimentation, an assumption concerning the starting mechanism of cohesive sedimentation was proposed and a formula to determine the starting velocity of compact clay was given. It is pointed out that the fluctuating function of flow is a main factor for the starting of sedimentation. The component and structure of cohesive sedimentation are also the affecting factors for the starting. Consequently, the modern results of soil mechanics, clay mineralogy and fluid mechanics are helpful in the investigation of this kind of engineering problem.展开更多
基金This study was supported by the jointkey projectof the National Natural Science Foundation of China and the Water Resources Min
文摘By considering concealing and revealing features of non-uniform sediments, and using analytical method of theoretical mechanics, vectorial competent bottom velocity formulations at arbitrary faces for both concealing and revealing sediments were given respectively. A series of relations similar to existed formulations were obtained by simplified the formulations.
文摘In this paper, with the starting velocity experiments of natural cohesive sedimentation, an assumption concerning the starting mechanism of cohesive sedimentation was proposed and a formula to determine the starting velocity of compact clay was given. It is pointed out that the fluctuating function of flow is a main factor for the starting of sedimentation. The component and structure of cohesive sedimentation are also the affecting factors for the starting. Consequently, the modern results of soil mechanics, clay mineralogy and fluid mechanics are helpful in the investigation of this kind of engineering problem.
