Structure of steel pipe applied to steel pipe roof construction method for building underground structure, and steel pipe roof structure therefor using the same, and steel roof construction method thereof

摘要

The present invention relates to a structure, and a steel pipe of a steel pipe loop structure applying him to be applied to the non-excavation pipe loop method for the construction of underground structures that require non-excavation method. Attached to the upper and lower first flange to the outer aspect of the steel pipe and the other side, the other second flange corresponding to the first flange of the pipe connection is attached to the top and bottom, the one side central portion of the steel pipe latch and hook are formed, the other side another T-shaped flange has a central portion that is connected to the grommet of the steel pipe is formed, the ball number of through penetrating installation to a fixing hardware that combines the pipe adjacent to each other both side surfaces of the steel pipe is formed. The end of the flange is composed of mutually overlapping or butt form each other and formed in a line-type flange. Fixing a hardware through the through hole is provided through the fixing through-hole formed in the adjacent steel hardware. The closure space formed by the upper and lower flanges of the inner and adjacent steel pipe after the pipe for charging the mortar or concrete. Thus, due to the rigid lateral stiffness so separate lateral support beams and pillars, only hypotheses can be installed without installing the internal operations of the excavations, shrinking the size of the hypothesis loop is also simple installation process. It carried the distinction excavated in the loop structure body during earthmoving operations made earthwork operations for the remainder, which ensure the safety of the construction tunnel and structures supporting the installation of structures by drilling only in selective areas to be installed after the upper load during construction so as to secure stability, it forms a ground displacement suppression and shortening and installation cost savings.