Tunnel and city pipe gallery leakage expansion joint repairing method and expansion joint device

Abstract

The invention relates to a tunnel and city pipe gallery leakage expansion joint repairing method and an expansion joint device. The method includes the following steps that expansion joint checking is carried out; treatment of base faces of concrete on the two sides of an expansion joint is carried out; a water-cured instant coagulating grouting nozzle is embedded; a non-cured rubber grouting nozzle is embedded; water-cured instant coagulating rubber is injected; a water guide pipe is installed; a non-vulcanized butyl rubber sheet is installed; a water stopping plate and a steel plate are installed; pouring of non-cured rubber is carried out; the grouting nozzles are plugged; and the expansion joint device is formed after repairing is carried out. Through a repairing method combining rigidity protection and the structural design that water guiding serves as a main and plugging serves as an auxiliary, flexible instant grouting leakage plugging is achieved; by means of the expansion joint device formed after repairing, repairing of the tunnel and pipe gallery expansion joint is achieved to a large extent, the overall device is high in firmness and not likely to be damaged, the expansion joint is filled with non-cured rubber strips, it is guaranteed that all components in the device structure do not move, the repairing quality is effectively guaranteed, guide and plugging are combined, and the service life of the expansion joint device is prolonged.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering construction, and in particular relates to a method for repairing leakage expansion joints of tunnels and urban pipe corridors and an expansion joint device. Background technique [0002] With the large-scale investment in infrastructure and the improvement of requirements for the environment, national defense, traffic volume and other conditions, the construction of subway tunnel urban pipe gallery has become the first choice for urban construction foundation; Set a structural joint at an appropriate position to adapt to temperature changes and stress deformation; the expansion joint is a very important part, which not only plays the role of expansion and deformation, but also plays the role of anti-seepage; therefore, a stop will be set in the expansion joint However, during the construction process, if the construction quality control is not in place, the expansion joints will oft...

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Problems solved by technology

[0002] With the large-scale investment in infrastructure and the improvement of requirements for the environment, national defense, traffic volume and other conditions, the construction of subway tunnel urban pipe gallery has become the first choice for urban construction foundation; Set a structural joint at an appropriate position to adapt to temperature changes and stress deformation; the expansion joint is a very important part, which not only plays the role of expansion and deformation, but also plays the role of anti-seepage; therefore, a stopper will be set in the expansion joint However, during the construction process, if the construction quality control is not in place, the expansion joints will often leak; the common factors affecting the leakage are as follows: (1) The deformation of the expansion joint is too large due to the influence of external force, exceeding the The allowable variation range of the waterstop; (2) The rapid displacement of the expansion joint during the construction process causes damage to the waterstop; (3) The compactness of the concrete pouring construction is not reached, resulting in looseness, honeycomb, and local defects in the waterstop, which cause leakage ; All kinds of leakage diseases followed by various factors have also become a heart disease for the construction unit and the owner unit

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