PURPOSE: To provide a method for enabling a constructing of a underground continuous wall whose coupling part has an enough strength by precisely coupling together steel-frame mateials with no joint.
CONSTITUTION: After first erecting a steel-frame 1s, an erection hole 3 is excavated. Then one end of a wire rope 8 running through a rope guide 7 of the steel frame 1s previously erected is passed through an outside rope guide 7 of a steel fame 1 which is going to be erected, and the end of the wire rope 8 is hooked at a upper end of the steel frame 1s previously erected or at a proper place on the ground. The steel frame 1 is lifted down by means of a crane in such a manner that winds up the other end of the aforesaid rope 8 by the use of a winch and the like, and stretches the wire rope 8. An open part of the steel frame 1 can thus be erected in close contact with the steel frame 1s.
MIHASHI EISAKU
SUGIYAMA TADAO
TAKATSUKA TAKESHI
