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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