STABILITY OF GRAVEL BED RIVERS BASED ON SIEVE ANALYSIS DATA

查看全文 作　　者：Andreas DITTRICH1 1 Institute of Water Resources Management, Hydraulic and Rural Engineering, University of Karlsruhe, Germany. 出　　处：《International Journal of Sediment Research》索引2001年第16卷第2期,共7页 摘　　要：Research was carried out at the University of Karlsruhe in the last 10 years to modify existing formulas and improve our knowledge on the determination of the stability of stream beds consisting of gravels and stones. Streams in the middle mountain region with typical slopes of I =0.05%to0.8% as well as those with distinct step-pool structures and slopes of I>4% and I ≤ 10% were investigated. Most of the experiments were conducted in the Theodor-Rehbock Laboratory. However, same of the results that had been obtained under laboratory conditions could be verrified with existing field data. In the following, the results and formulas of practical importance will be introduced and discussed. 关 键 词：STABILITY of RIVERS and torrents ROUGHNESS HEIGHTS laboratory experiments field DATA SIEVE analysis DATA