Thank you everyone for your advice. Since the consensus seemed to be that the safest method would be to pour concrete piers below the frostline, and I was able to source a pump to make the work more manageable, I have decided to do that. Thank you very much again.
Thanks so much for the response and advice. That’s good to hear that the gravel should work reasonably well with the caveats you mentioned. Actually, I was intending to just excavate (with an excavator) without pumping out any water since I just need a rough hole to dump the gravel into (which...
My project requires building pier foundations on a property with a very high water table (0–30 cm from the surface) and potential for frost heave (frost line is 45 cm). As such, I am thinking of excavating roughly 60 x 60 x 60 cm holes where the piers will go, lining the holes with filter...
