首页 | 本学科首页   官方微博 | 高级检索  
     

20世纪的泥沙运动力学
引用本文:周志德. 20世纪的泥沙运动力学[J]. 水利学报, 2002, 33(11): 0074-0077
作者姓名:周志德
作者单位:国际泥沙研究培训中心,北京,100044
摘    要:在20世纪,泥沙运动力学的研究取得了不少突出的成绩,但与其他学科同时期的进展相比,发展还是比较缓慢的。按取得的进展来看,20世纪可分为两个阶段;在上半叶,有6项突破性进展,逐步积累,到1950年,Einstein集大成,提出了第1 个泥沙运动力学理论体系。在下半叶,进入了百家争鸣的时代,一些研究者提出了自己的泥沙运动理论体系,作者列举了8个有代表性的理论体系。受计算机时代的影响,从20世纪70年 代开始出现了根据大量实测资料,利用计算机进行回归分析而得出的阻力和输沙率公式,而不拘泥于发展新的理论。与此同时,一些与实际偏离较远的理论逐渐被淘汰。在21世纪,要搜集系统完整的资料,特别是近底层的资料,并拓宽研究领域到环境,生态等学科。

关 键 词:泥沙运动力学;泥沙工程学;20世纪
文章编号:0559-9350(2002)11-0074-05

Advancement of sediment transport mechanics in the 20th Century
ZHOU Zhi-de. Advancement of sediment transport mechanics in the 20th Century[J]. Journal of Hydraulic Engineering, 2002, 33(11): 0074-0077
Authors:ZHOU Zhi-de
Affiliation:International Research and Training Center on Erosion and S edimentation
Abstract:A general review on the development of sediment transport mechanics in the last century is given.It is pointed out that the development can be divided into two 2 stages.In the first half of the century 6 important contributions were achieved and the first unified theory of sediment transport was suggested by Eintein in 1950.In the second half of the century,various the ories were developed.At the meantime,some empirical formulas of resistance and sediment transport were put forward based upon experimental and field data.Some theories were eliminated through practice due to obvious deficiency.In the new century the most important thing is to collect systematic data from rivers and laboratories,especially those of bed layer.Besides,expanding the scope of research to the field of environment and ecology is very urgent.
Keywords:advancement   review   sediment transport mechanics   sediment engineering   20th Century
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《水利学报》浏览原始摘要信息
点击此处可从《水利学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号