STEEL FRAME PROPELLER AND TUNNEL CONSTRUCTION METHOD USING THE SAME

The present invention is to provide a steel frame propeller and a tunnel construction method using the same, which can smoothly construct a structure inside a tunnel by elongation and contraction of a steel frame propeller. To achieve this, according to the present invention, a steel frame propeller comprises: a propulsion frame formed to vertically and horizontally cross steel; and a hydraulic jacking device fixedly installed in both ends of the propulsion frame. Moreover, to achieve this, according to the present invention, a tunnel construction method using a steel frame propeller comprises steps of: (S I) forming a concrete base (B); (S II) installing a steel frame propeller on the concrete base; (S III) moving the steel frame propeller frontward by pushing a hydraulic jacking device of the steel frame propeller backward; (S IV) pulling the hydraulic jacking device of the steel frame propeller; (S V) installing a H-beam reinforcement unit on the top and the bottom of a sear surface of the steel frame propeller; (S VI) installing a H-beam support foundation on the H-beam reinforcement unit; (S VII) installing a concrete deck on the H-beam support foundation; (S VIII) installing a grouting valve on the concrete deck; and (S IX) grouting a rear surface of the concrete deck by injecting a grouting material through the grouting valve. The steps are repeatedly performed to build a tunnel structure.