Abstract: An improved drill tip 110 for a foundation pile includes a soil penetrating body 112 depending from a pile attachment structure 114, the soil penetrating body having a plurality of circular stepped flights 116 formed in the shape of a descending continuous conic spiral and having a continuous spiral-shaped lower face 120 and a spiraling outer face 122, a spiral flight 124 extending radially from the lower end 126 of the outer face 122 in linear alignment with the lower face 120, and an upper flight 128 extending radially from the pile attachment structure.

Abstract: An improved drill tip 110 for a foundation pile includes a soil penetrating body 112 depending from a pile attachment structure 114, the soil penetrating body having a plurality of circular stepped flights 116 formed in the shape of a descending continuous conic spiral and having a continuous spiral-shaped lower face 120 and a spiraling outer face 122, a spiral flight 124 extending radially from the lower end 126 of the outer face 122 in linear alignment with the lower face 120, and an upper flight 128 extending radially from the pile attachment structure.

Abstract: A pile driving system and method of operation for driving pile casings formed of a material which is a composite of fiberglass and a resin matrix. The pile casing is sleeved on a mandrel which receives driving forces from a hammer. The driving forces are directed from the mandrel into a boot plate which penetrates down as it makes a hole in the soil. The pile casing rides down with the mandrel, and as the depth increases additional sections of pile casings and mandrel segments can be added. Trapping devices are provided for trapping the pile casing relative to the mandrel so that a portion of the driving forces are directed into the pile casing.