At times helical piles are better than just Shallow Foundations
In many applications helical piles are cost and time effective in soft soil applications.
Helical piles eliminate the need to excavate and remove soft soils. Benefits include:
Time: Helical piles can be installed quicker than the time required just for the excavation
No soils disposal
No back fill to purchase and haul in. Eliminate bridging problems where you have high water table.
Time and cost to back fill, compact, and test
Smaller spread footers
Reduced concern for differential settlement