As found within the figure down below, continuous auger is utilized to drill the borehole, carry up drilled soil, and pour concrete even though the auger is moved up. Due to this fact, the borehole isn't going to require casing or hydrostatic pressure to prevent harm to the borehole wall. https://cast-in-situ-piles-in-dha31833.blog5.net/75743991/the-cast-in-situ-piles-in-bangladesh-diaries