EXECUTION OF WORK FOR FOUNDATION OF BUILDING

PURPOSE: To enhance the accuracy of the top level of a building foundation by laying a self-leveling material so that a horizontal reference surface is formed, and then placing a foundation concrete. CONSTITUTION: A plurality of receptacle members 1 are laid on rubble stones and/or crushed stones 53 of an excavated trench 51 whose side face is inclined while coupling of the receptacle members is performed simultaneously, and if a self-leveling material S is laid on them, the oversurface of the material S is made horizontal, and after hardening, the top plate becomes a reference surface B. A base piece 54, riser form 56, and base form 52 are laid one after another along the reference surface B. The location of the base piece 54 should be adjustable when reinforcing bars etc., are to be installed. The top of the base form 52 is located a certain width higher than the bottom of the riser form 56 so that the placed concrete C does not go beyond the base form 52. After concrete is placed in the first and riser formes 52, 56, adjustment of the top level of the concrete C is conducted while the top of the riser form 56 is used as a guide, and after their hardening, the forms 52, 56 are removed, and the intended building foundation is completed.