Thank you @phamENG. I absolutely agree. It is beyond point of doubt that geotechnical conditions can vary greatly in depth which could easily be left undetected by the piling contractor. All the more reason to go in with geotech support.
Thank you @dik. I would say several iterations might be necessary to arrive at a qualified design if all the base parameters including geotech are available.
Thank you @AskTooMuch. The buildings are small (10ft high) and light so Overturning is the major issue. I agree that the screw piles are often fully delegated to the piling contractors, and competent contractors do a decent job in delivering a qualified design and installation most of the times...
Thank you @dik and @WesternJeb. I will push for a geotech report otherwise there will be no way for me to accept liability for this design even with the torque-capacity correlations. If the piling contractor is willing to do it, that's another matter.
Hi. I have been tasked with specifying two light unidentical prefab buildings in a desolate region. Screw pile seems to be the most economical option for the foundations. The client is very much against doing any geotechnical investigation on the site. Though it is a common practice to supply...
