UNDERGROUND AUXILIARY TUNNEL STRUCTURE AND CONSTRUCTION METHOD FOR UNDERGROUND AUXILIARY TUNNEL STRUCTURE USING PRESSSED PIPE

摘要

The present invention is to provide an underground auxiliary passage structure and a steel pipe jacking method for constructing the same. The underground auxiliary passage structure comprises a main passage structure (100) and an auxiliary passage structure (200), wherein the main passage structure (100) includes: multiple main passage beam steel pipes (110) installed along the outline of an underground structure to be installed, installed underground, and installed to be mutually separated at a certain distance in parallel; main passage walls (120) installed at the lower sides of the main passage beam steel pipes (110); and a main passage upper slab (130) formed by multiple slab steel pipes (131) perpendicularly installed between the main passage beam steel pipes (110), and the auxiliary passage structure (200) having multiple auxiliary passage beam steel pipes (210) installed to be perpendicularly extended from the side wall of the main passage beam steel pipes (110) is perpendicularly installed at the side of the main passage structure (100). According to the present invention, construction periods and construction costs for the underground auxiliary passage structure are reduced by improving the constructability of the underground auxiliary passage structure; the structural stability of the underground auxiliary passage structure is secured throughout the process and completion of the construction of the underground auxiliary passage structure; and the constructability and stability of the underground auxiliary passage structure is improved even in an underground water area.