Thanks, MTNClimber. Yes, they are aware of the risk. The upper soil layer is all stiff "CH". The bedrock is Claystone. We don't get rock coring for residential projects, but they are all Claystone or Sandstone, and we assume a typical Qu. I have done many projects in CO, where we determine the...
It is a typical 1,500 sqft residential structure, which is located close to the crest of a slop, in a landslide zone. The log shows the bedrock at 22 ft, and on top of it all fat Clay.
I need to determine the minimum length of piers and min bedrock penetration.
I am working on a soil report for a residential project in the Bay Area, CA, and I was wondering how you would determine and recommend the minimum length of the piers and min embedded depth in the bedrock. -Thanks
