Waterproof open caisson assembly and concrete foundation construction method using the same

摘要

A waterproof open caisson assembly and a concrete foundation construction method using the same are provided to reduce cost and to prevent inflow of the water into the caisson by connecting the open caisson with a steel casing. A waterproof open caisson assembly comprises steel shoe(10), at least one steel casing(30), a steel standard frame, and a steel mold. The concrete is poured in the steel shoe. The steel mold is installed at an outer peripheral surface of the steel casing. The steel mold is assembled above a connection flange placed on the outer peripheral surface of the steel shoe. The reinforced concrete is poured between the casing and the mold to absorb shock when the crack is generated, thereby maintaining water-tightness.