As found in the determine under, constant auger is used to drill the borehole, lift up drilled soil, and pour concrete though the auger is moved up. Due to this fact, the borehole would not need casing or hydrostatic strain to prevent harm to the borehole wall. Log in to https://kameronxlppq.aioblogs.com/85744990/cast-in-situ-piles-secrets