PURPOSE: To reduce the construction cost by connecting connecting plates and resistance blades to form a foundation body, placing the resistance blades below the floor hole bottom face, coupling a connecting pipe body with a foundation pipe, and integrally welding them.
CONSTITUTION: A strike plate is fixed on the inside center section of a foundation pipe 1 with the planned length, diameter, thickness and strength, connecting plates 3 are fixed at equal positions on both sides below the upper side by the planned quantity to form a foundation body A. A connecting pipe 6 is formed higher than the height to the upper side of the connecting plates and the foundation pipe, bolt plates are fixed at multiple radial positions at a uniform interval on the outer periphery, and bolts 8 are screwed and fixed respectively to form a connecting pipe body B. The foundation body A is connected to the connecting plates 3 and resistance blades 9 and placed below the floor hole bottom face, and the connecting pipe body B is coupled with the foundation pipe 1 and integrally welded. Thereby no hardening and curing period is required.
WATANABE HIKOITSU
GENMA SANJI