I am designing a 10' retaining wall where the soils report gives
a passive value of 400 psf and a coef. of friction of 0.3 for bedrock.
The report states that these are allowable design values and have a factor
of safety of 1.5.my question is whether this is the same safety factor
required for sliding by the ubc, or are the ubc factors in addition?
Tarek Mokhtar, SE
Laguna Beach, CA.