Lab soil paramters compared with back analysis of slope failure
Lab soil paramters compared with back analysis of slope failure
(OP)
I am wondering why lab soil parameters are often larger than back-analysis of first time slope failures?
Any help on this topic would be greatly appreciated
Any help on this topic would be greatly appreciated





RE: Lab soil paramters compared with back analysis of slope failure
Also are you looking at peak values on the lab testing or the residual values. We tend to design our slopes and walls based on the residual numbers for an added FoS.
It may also be how well you are defining the soil condition and slip plane that occured in the field. Is there a thin weak layer the slip followed? Is there a variation in the soil properties that is not visually noticable?
I am sure there are many more point to take into consideration. It is hard to tell why you see a difference without knowing your background and what methods you are using to compare. The questions above should give you some reasons why things may be different.