Underground cylinder reinforced concrete combined outer wall structure and construction method

Abstract

The invention discloses an underground cylinder reinforced concrete combined outer wall structure. The underground cylinder reinforced concrete combined outer wall structure comprises a steel structure inner wall cylinder, a T-shaped main rib, an angle steel vertical rib, an annular steel plate, stud shear connectors and fiber concrete, wherein an underground cylinder structure belongs to an underground hydraulic structure, is constructed through adopting an open cut order method, and inflow waste water inside a shaft is in a pressure working state after the underground cylinder structure is built, a stainless steel and carbon structural steel composite steel plate is adopted for the wall of a steel structure cylinder, and the stud shear connectors are welded to the outer side of a steel structure cylinder main body, a T-shaped main rib web and the two sides of a flange plate. The construction method is suitable for structural construction of the open cut order method, the large-diameter and high-height structure is installed after being machined in a layered and blocked mode, the outer side concrete is poured after a steel structure is installed, at the moment, the inner wall cylinder plays a role of an inner formwork, and the inner wall cylinder and the outer wall concrete are integrated to serve as a permanent structure in the later period; and the construction method is adopted, the construction difficulty of the underground cylinder structure is reduced, and the construction period of the structure is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of underground hydraulic construction, in particular to an underground cylindrical reinforced concrete composite outer wall structure and a construction method. Background technique [0002] Steel-concrete composite structure is a structural form developed on the basis of steel structure and concrete structure. It gives full play to the mechanical properties of steel and concrete and optimizes the design of the structure. With its remarkable technical, economic and social benefits, steel-concrete composite structures have developed rapidly in the fields of bridges and housing construction, such as reinforced concrete concrete columns, steel plate concrete composite beams, steel pipe concrete, steel reinforced concrete and other structural forms are becoming more and more popular. The application is mature, but it is still less applied to underground structures. [0003] The present invention is aimed at an ...

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Problems solved by technology

[0004] In order to overcome technical defects such as high safety risks, complex construction environment and construction procedures in the traditional methods such as the full hall support method in the prior art when the height of the underground cylinder structure is high, the invention provides an underground cylinder reinforced concrete Combining the external wall structure and construction method, the stainless steel inner wall is used as an anti-corrosion measure for the sewage structure in the inflow tube during the normal use stage of the structure, and the outer carbon steel is a component of the steel structure stress system, which bears the load during the construction stage and the normal use stage, which solves the above problems technical problem

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