Prefabricated assembled type underground passage interface frame structure and construction method

Abstract

The invention relates to the technical field of deep underground structure engineering, and particularly relates to a prefabricated assembled type underground passage interface frame structure and a construction method. The prefabricated assembled type underground passage interface frame structure comprises a top plate, a middle plate and a superimposed side wall, wherein the top plate, the middle plate and the superimposed side wall are enclosed to form an underground passage; the superimposed side wall is positioned on the side of the underground passage and is fixedly connected with prefabricated columns; the top plate is positioned on the side of the underground passage and is fixedly connected with a frame beam; the left end and the right end of the frame beam are respectively and fixedly connected with the top ends of the two prefabricated columns; the bottom ends of the prefabricated columns are fixedly connected with the middle plate. In the assembling stage, connection is realized by section steel, and loads in the construction stage are all borne by the section steel; and after assembling is completed, an integral frame is formed by cast-in-place concrete wet nodes; and in the use stage, the integral frame is jointly borne by section steel concrete. The whole interface frame and the side wall are connected into a whole to form a reliable integral stress system. The section steel assembling construction is convenient and rapid, the construction period is greatly shortened, the engineering quality is reliable, and the prefabricated assembled type underground passage interface frame structure is suitable for subways and similar engineering main body structures and has certain social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of deep underground structure engineering, in particular to a prefabricated assembled underground passage interface frame structure and a construction method. Background technique [0002] The opening position of the side wall of the connection channel of the traditional prefabricated underground structure is provided with an integral interface frame, and the integral interface frame is connected with the adjacent side wall by bolts. The main disadvantages of this scheme are: The requirements for heavy equipment capacity are high, the construction space is large, and the construction is difficult. Moreover, when the overall interface frame and the adjacent structure are connected by bolts, a rigid connection cannot be formed, and it is difficult to form an overall structural stress system. Contents of the invention [0003] The invention provides a prefabricated assembled underground passage interface fram...

AI Technical Summary

Problems solved by technology

[0002] The opening position of the side wall of the connection channel of the traditional prefabricated underground structure is provided with an integral interface frame, and the integral interface frame is connected with the adjacent side wall by bolts. The main disadvantages of this scheme are: Heavy equipment capacity requirements are high, construction space is large, construction is difficult, and the overall interface frame and adjacent structures cannot form a rigid connection when bolted, and it is difficult to form an overall structural stress system

Images