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Table 1 Distribution of bed material diameter fractions

From: Experimental analysis and numerical simulation of bed elevation change in mountain rivers

Fraction Material diameter (mm) dim (mm) di (mm)
No.1 <0.01 0.005 0.005
No.2 0.125–0.5 0.31 0.3
No.3 0.5–2.0 1.25 1.25
No.4 2.0–8.0 5.0 5.0
No.5 8.0–16 12.0 10.0
No.6 16–32 24.0 25.0
No.7 32–64 48.0 50.0
No.8 64–128 95.0 100.0
No.9 128–265 196 150.0
No.10 >265 250 250.0