As observed in the figure below, continual auger is accustomed to drill the borehole, raise up drilled soil, and pour concrete while the auger is moved up. As a result, the borehole will not want casing or hydrostatic stress to prevent damage to the borehole wall. আমাদের কোম্পানিতে দক্ষ সার্ভেয়াররা https://hippop578mds0.bloggerbags.com/profile