Device for arranging shield in station

Abstract

The invention provides a device for arranging a shield in a station, comprising a plurality of auxiliary devices for arranging a shield in a station, wherein each of the plurality of auxiliary devices comprises an elastic device and a base; the elastic devices are fixedly arranged on the bases; the bases in the plurality of auxiliary devices are arranged into a circle at the outer side of an embedded steel hole ring outside the station; the elastic devices in the plurality of auxiliary devices are closely arrayed; the plurality of elastic devices are tightly attached to the housing of the shield, and can fill in gaps between the shield and the pre-embedded steel hole ring very well. In the case of water burst and sand burst when the shield enters in the station, most of sand and water is prevented from bursting; simultaneously, cement-sodium silicate double-solution grouting or polyurethane grouting is performed manually, and a water stopping operation is effectively performed, so that the shield can safely enter in the station to perform an excavating operation.

Description

technical field [0001] The invention relates to the technical field of underground space construction, in particular to a shield entering station device. Background technique [0002] With the acceleration of urban construction in our country, subway construction is in full swing in Shanghai, Nanjing, Suzhou and other cities. The full development of subway construction will inevitably bring about a series of technical problems, especially the difficulty of shield tunneling in strata with rich water content. If not handled properly, it will cause water gushing and sand gushing, leading to collapse. [0003] When the shield machine enters the station, there is an average gap of about 18cm or more between the shield machine and the pre-embedded steel hole ring outside the station. It is very difficult to seal the 18cm or larger gap in a short time when large water and sand gushes are generated when entering the station or excavating, which will cause construction difficulties,...

AI Technical Summary

Problems solved by technology

The full development of subway construction will inevitably bring about a series of technical problems, especially the difficulty of shield tunneling in strata with rich water content. If not handled properly, it will cause water gushing and sand gushing, leading to collapse

[0003] When the shield machine enters the station, there is an average gap of about 18cm or more between the shield machine and the pre-embedded steel hole ring outside the station. It is very difficult to seal the 18cm or larger gap in a short time when there is a large water gushing and sand gushing when entering the station or excavating, which will cause construction difficulties, shield machine damage or collapse and other accidents

Images