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Internal Angle of Friction
2

Internal Angle of Friction

Internal Angle of Friction

(OP)
When designing a retaining wall with a single sized gravel (say 1/2" or 3/4") backfill, what would be the recommended internal angle of friction. Would 36 degrees be reasonable?

Thanks

RE: Internal Angle of Friction

Somewhere between 35 and 40 degrees, depending on particle shape.

RE: Internal Angle of Friction

and don't forget density...(please don't anyone use the phrase "self compacting")

gravel or crushed aggregate? some may read these terms differently even though i'm pretty sure i know what you are referring to.

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