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@Doctormo - I am following some published guidance which uses Coulomb method in overturning calculations. This guidance doesn't mention the Ko case. The Coulomb method doesn't make the same assumption of smooth walls, and including wall friction can have a noticeable effect on overturning as it...

Interesting to hear the different opinions. I agree that in reality we will get some small movements. I've also considered the fact that friction doesn't necessarily require movement - overcoming the initial/static friction to slide an item across a desk for example. The question remains what...

Hi, I am designing a timber pole propped cantilever retaining wall for the 'At Rest' condition. For a static/long-term analysis, what wall friction would we expect? For an active case I would usually use 1/3 to 2/3 of the soil internal angle of friction, but for the at rest case there is...

Hi, I am designing a timber pole propped cantilever retaining wall for the 'At Rest' condition. For a static/long-term analysis, what wall friction angle should I design for? For an active case I would usually use 2/3 of the soil internal angle of friction, but for the at rest case there is...