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The ground water level between the two borings (about 50' apart) is reported at 13.5' below grade, and 3.5' below grade (Dense sand layer is 14'-18' below grade). They reference this ground water level and the depth of unsuitable soils as being impractical for removal of unsuitable soils. I...

The slab & interior walls are supported by helical piers as well. The Owner has reached his decision for the deep foundation based on the Geotech recommendations (which explicitly determined a deep foundation to be more cost-effective). Based on that, I did not calculate consolidation as the...

The Geotech Report recommended analyzing it as a cantilevered foundation wall with Sand Back Fill using an EFP of 90 PCF Active and 120 PCF Passive in an undrained condition. The lateral load at the tie-back elevation is 1.51 KLF. The Owner supplied plans by a home designer with very basic...

Hello, First time posting, looking forward to some insight. I am working on a deep foundation plan for a 2-story residential structure located near a waterbody (approximately 200 ft+ inland). I am utilizing a grade beam, helical pier system due to a relatively thick and soft organic soils...