EXPERIMENTAL STUDY OF SCOUR RATE IN CONSOLIDATED COHESIVE SEDIMENT  

作　　者：TAN Guang-ming JIANG Lei SHU Cai-wen LV Ping WANG Jun 

机构地区：[1]State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China [2]Anhui Bureau of Yangtze River Management, Wuhu 241000, China [3]Yangtze River Scientific Research Institute, Wuhan 430010, China

出　　处：《Journal of Hydrodynamics》2010年第1期51-57,共7页水动力学研究与进展B辑（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.50679064)

摘　　要：The erosion process of a cohesive sediment after consolidation was studied experimentally in a closed conduit system. The test samples investigated in this study are mixtures of sand and clay with variable compositions and different consolidation times. The main concern of this study is the effects of the dry density of the consolidated sediment on scour rate. A scour rate formula is derived and further interpreted based on the experimental results.The erosion process of a cohesive sediment after consolidation was studied experimentally in a closed conduit system. The test samples investigated in this study are mixtures of sand and clay with variable compositions and different consolidation times. The main concern of this study is the effects of the dry density of the consolidated sediment on scour rate. A scour rate formula is derived and further interpreted based on the experimental results.

关 键 词：cohesive sediment CONSOLIDATION dry density scour rate scour rate formula 

分 类 号：TV148[水利工程—水力学及河流动力学] TV142