Procedure for the Construction of underground large diameter piles and Soil Drilling Tool

摘要

Procedure for the Construction of underground large diameter piles and Soil Drilling Tool. Soil available within a Nucleus (15) of small diameter Pile made with an erodible material mechanically, which extends along the Central Axis of a pile of large diameter to be built.Then the soil around the Pile core is excavated (15), using the same kernel as a means of Guidance for a tool (20) for Drilling or Excavation.This tool (20) has a Central Cavity Cylindrical Guide (26) inserted around the core (15), Lower Cutting Elements (21, 21) to break the ground located Underneath The Tool and cutting Elements interior (28) arranged above the Cylindrical Cavity (26),To break or Crush the Upper end of the core (15) as the tool Moves down Guided along the core.