Movable shield tunnel temporary reinforcing platform

Abstract

The invention discloses a movable shield tunnel temporary reinforcing platform. The movable shield tunnel temporary reinforcing platform comprises an air bag with the top used for pushing a tunnel structure, an umbrella-shaped support arranged below the air bag and used for supporting the air bag, and a trolley connected to the bottom of the umbrella-shaped support and capable of moving on a track, wherein the trolley can be switched between a traveling state and a parking state. The movable shield tunnel temporary reinforcing platform can be rapidly positioned to the ellipse-change-area tunnel needing to be repaired along the track, the air bag is rapidly pressurized for pushing the tunnel structure, personnel can be prevented from being exposed in the risk tunnel without protective measures for a long time for operation while deformation of the tunnel structure is recovered, sufficient operation space is reserved for permanent reinforcement of the two sides of the tunnel, and a new thought is provided for shield tunnel emergency repair; and besides, when the tunnel is affected by external operation, the platform can reinforce the tunnel in the affected area in advance, the reinforcing position can be flexibly adjusted to adapt to the change of the external operation, and the influence of the external operation on the tunnel structure safety is reduced.

Description

technical field [0001] The invention relates to the field of urban tunnel construction, in particular to a temporary reinforcement platform for a mobile shield tunnel. Background technique [0002] As the utilization rate of urban underground space has increased significantly, the service life of shield tunnels has gradually increased, so more and more attention has been paid to the deformation and disease of shield tunnels. Affected by foundation pit construction, shield tunneling, and ground overload, accidents that cause serious damage to shield tunnels due to excessive lateral deformation are not uncommon. The shield tunnel diseases caused by excessive lateral deformation are mainly manifested as: the structure invades the tunnel boundary, affecting the safety of train operation; the excessive opening of the longitudinal joints of the segments causes water leakage at the joints; The block phenomenon will affect the safety of trains and endanger the lives of inspection p...

AI Technical Summary

Problems solved by technology

Although this method solves the problem of local stress, the airbag integrally attached to the inside of the tunnel will not be able to provide the construction workers with the required work space, and there is a certain risk of airbag rupture

This method is only suitable for emergency rescue, and it is impossible to carry out subsequent permanent reinforcement measures after the airbag is reinforced, and its application range is small

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