You have this under Slope Stability. I assume you are not concerned just about bearing capacity but also slope stability. There are several resources on bearing pressure, all over the internet. Are you looking at a silty material? FHWA got some free publications on bearing capacity also. Concerning bearing and stability issues, you can consult NAVFAC DM 7.1 & 7.2 which you can download online for free. I would maybe simplify the soil properties for analysis, except if you have lab results of c and phi to substantiate. If the soil is more sandy than clay, I would analyze as sand, and vice versa if it is more clayey. But for slope stability you would be much better of using an acceptable computer program.