Sorry for being vague.
The auger cast pile has a steel tube surrounding the concrete. The tube was driven into the soil in sections then the soil was augered out before another section was welded on. We think the auger went down further than the tip of the tube and caused more soil to be...
The situation: We have a pile(s) with a large cavity around the mid - section. we plan to dig down to the cavity, fill it, then pressure grout around the pile.
Question: how can you verify that the grouting has worked, i.e. the uplift capacity of the pile has been restored?