Design and construction method of joining new subway station and existing subway station by holing baseplates

Abstract

The invention belongs to the technical field of architectural design and construction, and particularly relates to a design and construction method of joining a new subway station and an existing subway station by holing baseplates. The design and construction method of joining the new subway station and the existing subway station by holing the baseplates sequentiallycomprises the following steps of: step one,performing holing construction on platform plates of the existing station; step two,performing holing construction on baseplates of the existing station; step three,constructing U-shaped stiffening beams, wherein the baseplates of the existing station are located in depressions of the stiffening beams; and step four,constructing transfer passageways, wherein the U-shaped stiffening beams are connected to the transfer passageways. According to the design and construction method, a shallow buried covered excavation method is mainly adopted for constructing new transfer passageways, top plates of the passageways pass through the middles of the structural baseplates of the existing subway station closely and downwards, then the existing baseplates are holed for realizing the transfer function, and the construction can be performed on the basis of minimumrenovationof the structure and equipment of the existing subway station. The construction method does not affect the normal operation of existing lines.

Description

technical field [0001] The invention belongs to the technical field of architectural design and construction, and in particular relates to a design and construction method for connecting a new subway station with an opening in the floor of an old subway station. Background technique [0002] The subway station is an important building in the urban rail transit network. The auxiliary equipment includes escalators, elevators, rolling doors, flood doors, passenger guidance, lighting, sales inspection systems, and station equipment automatic control systems. Landing, transfer and waiting places. At present, due to the long-term construction of many subway stations on existing lines, no long-term transfer interface conditions have been reserved, and the scale is generally relatively small. For example, Beijing Metro Lines 1 and 2 were built in the 1960s and 1970s. The form of a half-story, that is, the single-story platform floor in the middle, and small mezzanine floors on both...

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Problems solved by technology

[0004] The present invention provides a design and construction method for the connection of new subway stations and old subway station floor openings, so as to solve the problem that the transformation of the existing subway station structure and equipment in the construction process of the above-mentioned background technology is small and does not affect both There is a problem with the normal operation of the line

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