Construction method for splicing existing station of rail transit with station

Abstract

The invention relates to a construction method for splicing an existing station of a rail transit with a station. The construction method comprises the following steps that a splicing station enclosure structure is constructed on one side of the existing station, and an interface area is formed between the splicing station enclosure structure and the existing station enclosure structure; grouting reinforcement is conducted on the interface area; foundation pit construction is conducted within the range of the splicing station, and after foundation pit construction is completed, a main body structure of the splicing station is constructed; a soil body is excavated in the interface area, the existing station enclosure structure and the side wall on one side of the interface area and the splicing station enclosure structure on the other side of the interface area are chiseled off, the existing station communicates with the splicing station, and a connecting structure for connecting the splicing station main body structure and the existing station main body structure is constructed. According to the method, the operation safety of the existing station is ensured.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a construction method for connecting an existing rail transit station to a station. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the increase of subway lines, there are more and more constructions of follow-up transfer stations for existing operating lines. On the basis of ensuring the safety of the existing operating lines, the excavation of the foundation pit of the subsequent underground station and the design of the connection at the transfer node of the main structure have become more and more important. The side wall and enclosure structure of the existing operating line are used as the lateral force system of the foundation pit during the construction of the connecting station. The inventor found that when this construction method i...

AI Technical Summary

Problems solved by technology

On the basis of ensuring the safety of the existing operating lines, the excavation of the foundation pit of the subsequent underground station and the design of the connection at the transfer node of the main structure have become more and more important. The side wall and enclosure structure of the existing operating line are used as the lateral force system of the foundation pit during the construction of the connecting station. The inventor found that when this construction method is used to construct the connecting station, the soil disturbance of the existing operating line will be disturbed. Larger, the excavation and precipitation of the foundation pit of the continuation station have a greater impact on the existing subway facilities, causing certain operational risks

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