Bed Material Load
Four formulas that can compute bedmaterial load transport by size fraction are used to determine the particle size distribution of the bed materials in transportation.
Bed material load. Bed load moves by rolling sliding andor saltating hopping. 4 Bed and Suspended Load is selected in Sediment Transport Type. All the 56 sets of data were used in the evaluations of total bed material load equations except in the evaluation of transport equation by Wu et al.
A summary of the data is given in Table 2. The bed-material load is defined as that part of the sediment in transport whose sizes are found predominantly in the bed whereas the wash load is defined as that part of the sediment in transport that is not found predominantly in the bed. Material load can be distinguished by their effects on the evolution of bed topography.
Wash load is sediment in transport that is derived from sources other than the bed. As bed material grades from framework-supported to matrix-supported mixtures gravel transport rates increase by about five orders of magnitude Wilcock et al 2001 with the change most pronounced when sand content ranges between 15 and 27. Federal Interagency Sedimentation Project.
The bed material load y-axis is plotted as a function of discharge x-axis in a scattergraph with both axes on logarithmic scales carefully matching the units of sediment load to the time base for the. The total bed material load ranges between 0184 kgs to as high as 118664 kgs. It is the coarser part of the load or the part that is most difficult to move by flowing water Sohlenfracht f.
H width of US BHL opening m. Bed-material load is further divided into the categories of suspended bed-material load and bedload. 1 Click Calculation Conditions Bed Material Load in Calculation Condition window.
Ad My Generator Is Australias Premium Online Retailer For Portable Power Products. As was shown decades ago pure bed load transport is responsible for the mean migration of trains of bed forms when no sediment is exchanged between individual bed forms. It is finer than the bed-material load and is not found in.

