Method for plugging deformation joint of underground engineering concrete structure in vibration disturbing environment

Abstract

The invention provides a method for plugging a deformation joint of an underground engineering concrete structure in a vibration disturbing environment. The method comprises the following steps: 1, adopting a drilling process to inject a cement-based plugging agent doped with chemical materials behind the wall of the underground engineering concrete structure; 2, for a severe water leaking and flowing deformation joint, temporarily adopting a special modified epoxy structural adhesive material and a polyurethane grouting material to carry out pinhole process grouting plugging on water leakage; and 3, at the 150-200mm depth position of the deformation joint, blocking a non-tube cavity in the horizontal direction of the deformation joint, filling the non-tube cavity with a modified non-solid rubber and asphalt grouting material, and mounting a sealant and a steel sandwich plate on the non-tube cavity. According to the presentation of the invention, grouting plugging is carried out on the deformation joint part by adopting the modified non-solid rubber and asphalt grouting material, and by adopting the special modified epoxy structural adhesive material, when grouting plugging is carried out on a tiny deformation joint part, reinforcement is also carried out, so that water leaking problems occurring in operation vibration disturbing environments, such as underground passages and subway stations, can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of repairing deformation joints, in particular to a plugging method for deformation joints of underground engineering concrete structures in a vibration disturbance environment. Background technique [0002] The subway adopts ballastless track integrated ballast bed technology to adapt to the operation of subway trains. When the subway trains pass through the underground passage, there will be vibration disturbances to the entire ballast bed and the underground passage. When the subway trains pass through the interval subway station, it will also bring great vibration disturbance to the concrete structure of the station, and if the top of the subway station is a municipal road, when there are cars passing on the road, it will also cause great shock to the concrete structure of the subway station. There are certain vibration disturbances, and the subway station is in the operating environment of double vibrat...

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to provide a method for plugging deformation joints of concrete structures in underground engineering under vibration disturbance environments, which can effectively solve the problem of plugging concrete structures under vibration disturbance environments

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