Alas, I have no control over the soils, which are, unfortunately, lousy. Or, as my geotech calls it, "baby poop". I already have as big an H-Pile as I can get in there, and I have access to L-Pile (which prior to now I didn't know would do an encased H-Pile, so thanks for that tidbit.)
Aside...
Thanks. I know I also need to provide ties or spirals in accordance with ACI 10.13.7. I think that by the time I add studs and longitudinal reinforcing, the contractor may reconsider a larger diameter.
I am tasked with the structural portion of an auger cast secant wall retaining structure. I have received all of the design moments, anchor forces, shears, etc. from the geotech. The controlling criteria, however, seems to be the deflection. Because of buried utilities in the vicinity, the...