Process to anchor a post or a string of posts in the ground, and anchoring pier of a post or a string of posts produced by the practice of this process

Process to anchor a post in the ground, comprising:

• a) determining a digging direction;
• b) supporting a prefabricated elongated hollow casing element of a generally cylindrical shape with its longitudinal axis in the digging direction;
• c) introducing into the casing element digging means having a longitudinal axis parallel to the digging direction;
• d) digging a hole in the ground by driving the digging means in a first direction of rotation, and substantially simultaneously, sinking the casing element in the hole by driving said casing element in a second direction of rotation opposite to the first direction, thereby facilitating evacuation of debris removed from the ground by the digging means from the casing element and the hole;
• e) withdrawing the digging means while leaving in place the hollow casing element, when the hole has a depth sufficient to receive a determined length of said hollow casing element;
• f) introducing into the hole a post and anchoring elements for the post, and securing the post to said anchoring elements;
• g) introducing within the hollow casing element prefabricated leveling elements;
• and
• h) injecting into the bottom of the hole and around the leveling elements, a fluent material capable of hardening, so as to anchor within the casing elements the prefabricated leveling elements, the anchoring elements and the post.