Shear stress 1

[SMIAH]

Is there anything like a graph or a table related to the critical shear stress (in N/m2) to put sand (0.1 mm - 2.0 mm) in suspension?

HEC RAS gives me the shear stress for every XS. I would like to know if I can use this information to answer "Is it enough to put a sand particle in motion" question.

Something simple.

 

[Drew08]

USDOT FHA HEC-15, Design of Roadside Channels with Flexible Linings.
Table 2.3 Typical Permissible Shear Stresses for Bare Soil and Stone Linings.

http://www.fhwa.dot.gov/engineering/hydraulics/pubs/05114/index.cfm

 

[SMIAH]

Thanks!