The present invention relates to a drilling machine (10) for carrying out excavation in the ground (S) in a vertical drilling direction (F). Said drilling machine comprises: a mounting (12) having a longitudinal direction (L); a drilling module (14) provided with cutting members (16), the drilling module being translatable relative to the mounting; and a movement device, arranged between the mounting and the drilling module, for moving the drilling module (14) relative to the mounting in the longitudinal direction of the mounting. The invention is characterized in that the movement device comprises an absorption device (70) for absorbing the vibrations generated by the drilling module while carrying out the drilling.