To shorten base construction works and reduce cost by manufacturing base frames of eighty percent by using an iron sheet or the like and a square pipe or the like in ironworks as a base construction method in building foundation works.
A burying method as a unit type by transport after the base frames are manufactured so as to be able to be easily installed when the frames are produced of the iron sheets in an arbitrary size or latticed iron sheets or corrugated iron sheets or the like in ironworks as the base construction method in building foundation works and the square pipes or triangular pipes or cylindrical pipes or the like are mounted on the iron sheets or the like in arbitrary length in the longitudinal or lateral and oblique arbitrary directions by welding or the like and the three, four or five frames are manufactured and transported in conformity with a demand at a site and the burying method as the base construction method for building foundation works by forming the iron sheets in a cylindrical shape in the arbitrary size and in the arbitrary size and height and workmanship are provided.