When incorporating a footing 'key' into a cantilever retaining wall footing, is it appropriate to increase the coefficient of friction to a 'soil/soil' interface value as opposed to the 'soil/concrete' value for sliding reisitance? If so, what is a reasonable value to use, (tangent of soil friction angle, phi)? Also, if using the higher coefficient, should it only be applied to the area 'behind' the key while using the 'soil/concrete' value for the area in front of the key?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.