Crimping tool cans. The grillage cans were then filled with a non-shrink grout, and a nut was threaded onto the spud. Applying torque to the nut on the spud preloaded both the clamp and spud, tightening up the whole assembly. Helical piles are generally installed to a minimum torque to ensure capacity, and, therefore, the exact depth is not known prior to installation. Trying to align predrilled holes on the end of a helical pile extension to a steel grillage just isn't practical. There is also the problem of locational tolerance on a helical pile. If just one helical pile was used as the foundation, precise location isn't important; however, aligning 12 Pipe extensions installed through the grillage Grillage can with grout 84 * DEEP FOUNDATIONS * MAR/APR 2024