Study of deposition of fine sediment within the pores of a coarse sediment bed stream

作     者：N.K.KHULLAR U.C.KOTHYARI K.G.Ranga RAJU 

作者机构：Department of Civil EngineeringPAU Ludhiana-India Prof.Dr. Department of Civil EngineeringIIT Roorkee-India Prof.Dr. Department of Civil EngineeringIIT Roorkee-India Formerly Prof.Dr. 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2013年第28卷第2期

页      面：210-219页

核心收录：

学科分类：08[工学] 081501[工学-水文学及水资源] 0815[工学-水利工程] 

主　　题：Fine sediment Flume experiment Bed material Concentration of suspended sediment Deposition condition 

摘      要：Elaborate experiments were performed in a 30 m long,0.5 m deep and 0.2 m wide laboratory flume to study the process of infiltration of fine sediment into the pores of coarse sediment forming the channel bed *** concentrations of suspended load of fine sediment of size 0.064 mm were passed over the channel bed made up of three different types of coarse sediments;two uniform and one *** proportion of fine sediment infiltrated into the pores of bed material for each equilibrium concentration of suspended load of fine sediment in the flow was studied during several experimental *** proportion of fine sediment within the pores of bed material increased with an increase in the equilibrium concentration of suspended load of fine sediment in the *** process continued till the pores within the coarse sediment bed were filled up to the capacity with the fine sediment transported by the flow in *** theoretical value was identified for limit for maximum proportion of fine sediment that can be present within the pores of bed *** further increase in the concentration of suspended load of fine sediment in the flow,deposition of fine sediment occurs on the surface of the flume bed in the form of ripples of the fine *** condition is defined as ’depositional condition’.Experimental observations on these and related aspects are presented herein.