As witnessed from your figure down below, continual auger is used to drill the borehole, elevate up drilled soil, and pour concrete whilst the auger is moved up. As a result, the borehole isn't going to need casing or hydrostatic stress to forestall harm to the borehole wall. আমাদের কোম্পানিতে https://alberts245pnm7.blogunteer.com/profile