Damaged bridge rush-repair construction method

Abstract

The invention discloses a damaged bridge rush-repair construction method. According to the method, a bridge is erected; when a certain span of a single-span bridge or a multi-span bridge collapses, falls into a beam, shifts a beam body and the like, and the stability of a bridge foundation is not affected, a bridge-on-bridge mode can be adopted to solve the problems; wherein ferrying refers to a method for ferrying personnel, vehicles and materials to pass through a river by utilizing boats, rafts, amphibious vehicles or portal bridges; culvert pipe bridges are arranged; on the premise that the culvert pipe is small in water flow, small in depth and expected not to swell in a short time, river crossing can be carried out in a culvert pipe burying mode; a rescue organization has a professional quick response team to cope with emergencies, and the response team is composed of experts for handling emergencies. According to the method, the situation is controlled at the first time, harm expansion is avoided, division of labor is clear, and comprehensive preparation is realized; specific to various possible dangerous situations, professional groups of different types of work built and cultivated by emergency units comprise transportation, blasting, excavation, installation and the like.

Description

technical field [0001] The invention belongs to the technical field of road repair, in particular to a method for repairing damaged bridges. Background technique [0002] In recent years, our transportation has developed rapidly, and the number of heavy-duty and overloaded vehicles has increased, which exceeds the carrying capacity of the old bridge and aggravates the aging of the bridge. Therefore, the bridge has been damaged to varying degrees. The construction quality is not up to standard, the strength of the materials used is not enough, and the bearing capacity of the bridge cannot meet the relevant national standards. 2. The foundation of the bridge was damaged in the sun and rain, and then became unstable. 3. The arch bridge is eroded by harmful gas during operation, causing bridge damage. 4. The poor drainage capacity under the bridge causes damage to the bridge construction. [0003] However, during the construction of the road clearance process, it is usually n...

AI Technical Summary

Problems solved by technology

[0002] In recent years, our transportation has developed rapidly, and the number of heavy-duty and overloaded vehicles has increased, which exceeds the carrying capacity of the old bridge and aggravates the aging of the bridge. Therefore, the bridge has been damaged to varying degrees. impact, the construction quality is not up to standard, the strength of the materials used is not enough, and the bearing capacity of the bridge does not meet the relevant national standards

2. The foundation of the bridge was damaged in the sun and rain, and then became unstable

3. The arch bridge is eroded by harmful gas during operation, causing bridge damage

4. The poor drainage capacity under the bridge causes damage to the bridge construction

When the bridge is damaged, due to the existence of rivers, affected by factors such as the flow rate and depth of the water, it is difficult to repair the work. It is necessary to ensure safe and timely transportation of personnel, mechanical vehicles, and materials. The existing bridge erection method is too simple and difficult Adapt to bridge repairs under more complicated conditions