Soil Investigations for Building Foundations .
Methods of Boring for Soil Investigations. The different methods of boring are: Auger Boring. The examination of the soil for ordinary buildings can be done by a post hole auger. The auger is held vertically and is driven into the ground by rotating its handle. At every 30 cm of depth, the auger is taken out and the soil samples collected. Wash Boring. Wash boring is commonly used for boring ...