Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique

Abstract

The invention provides a steel box beam pushing and deviation correcting method for a walking type multiple-point continuous pushing technique. A multiple-point walking type pushing technology is adopted, and a plurality of walking type pushing devices are controlled in a centralized mode for synchronous construction, so that the construction speed is increased, and construction safety is ensured; and vertical jacking control is conducted in the jacking and falling processes, synchronous pushing control and central axis deviation correcting control are conducted in the translation process of a steel box beam, balance degree control and accumulative error control are continuously conducted in the whole pushing process, a pressure sensor, a displacement sensor and an optoelectronic switch monitor and detect the steel box beam pushing pressure and the central axis deviation distance in the pushing process in real time through color difference detection, and smooth construction is ensured.

Description

technical field [0001] The invention relates to a steel box girder jacking and deflection correction method of a walking multi-point continuous jacking process, which belongs to the technical field of bridge engineering. Background technique [0002] Push-sliding construction is a bridge, roof truss, steel structure and other engineering production methods with a certain degree of hesitation. For example, the Chinese invention application "walking multi-point push construction method" (application number 201210042810.4) discloses the following content: walking The multi-point jacking scheme uses the two steps of "jacking" and "pushing" alternately. First, the whole steel box girder is lifted up by the supporting jacking cylinder, and then pushed forward by the jacking cylinder, and then the steel box girder is pushed forward. placed on a temporary pier structure. The jacking cylinder shrinks to the bottom, and continues to realize the next cycle. Through the cycle of recipr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a steel box girder jacking and deflection correction method of the walking multi-point continuous jacking process, which solves the problems of out-of-synchronization of the jacking equipment, inclination of the steel box girder, or out-of-tolerance lateral offset in the prior art question

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