Patent ID: 7326003

Claim:
A method for creating cementitious foundations resistant to soil heave, comprising the steps of: (a) creating a form with a cavity on a lower portion, said cavity dimensioned to a volume estimated to be equal or greater to an estimated volume of soil likely to be displaced by soil heave, said form being further configured to allow one or more linearly-tapered dowel pins to be inserted through said form; (b) inserting said one or more linearly-tapered dowel pins through said form, forming a cementitious material using said form, and removing said one or more linearly-tapered dowel pins from said formed cementitious material and said form after said cementitious material has set, each of said one or more linearly-tapered dowel pins thereby forming a tapered cavity in said formed and set cementitious material; and (c) placing said formed and set cementitious material, with said lower portion facing downward, into an excavation; wherein said formed and set cementitious material is further placed in a manner that leaves said cavity essentially empty of soil.