METHOD FOR INSTALLING SELF-ERECTABLE TUNNEL STEEL FORM

摘要

PURPOSE: A method is provided to install a self-erectable tunnel steel form in order to come in and out a ready mixed concrete truck inside the steel form. CONSTITUTION: An assembling unit panel(50a) is assembled with an arch plate(51), a right and left wall plate(52) and a flexible supporting jack(53). A steel form set(50) is assembled with many assembling unit panels. The flexible supporting jack is connected to a main jack(53a) and a subsidiary jack(53b). The upper part of the main jack is combined with a cross member(51a) of the arch plate and the lower part is combined with a supporting frame(52a) of the right and left wall plate. Also, the middle part of the main jack is foldable.