Abstract: A method and apparatus is provided for forming a row of piles to form a wall by employing an earth auger device. The method comprises the steps of drilling an intermediate hole in the earth with the auger between two previously-formed and spaced-apart piles, then stopping rotation of the earth auger at the bottom of the intermediate hole after completion of the drilling operation, pouring in mortar while pulling out the auger to form an intermediate pile between the previously-formed piles and, at the same time, cutting away or displacing portions of earth between the previously-formed piles and the intermediate pile, and replacing the displaced earth with pile-forming mortar to integrally join the intermediate pile with the previously-formed piles.