The WF Beams, Channels, Plates, and Techno Metal Post helical products had to be 50 KSI minimum. The project was supervised by a certified engineer from the state of Iowa who recommended the use of P5 (5.563″ x 0.258″ O.D shaft) piles for the wall, every 6’, as well as P3’s (3.5″ x 0.216″ O.D shaft), installed at a 15-degree angle for the tie backs. The design was based upon SM-SC-ML type backfill with a prescriptive 85 PCF lateral earth pressure per ASCE 7 Table 3.2-1. The piles were driven by the EM-1 machine, in black dirt, clay and even shale at 14’ below ground.
Techno Metal Post makes life easier for anyone with a construction project that requires a foundation in almost any type of soil.