Walking pushing device and pushing method

Abstract

The invention relates to a walking pushing device and pushing method. The walking pushing device comprises a jacking jack, a horizontal pushing jack, a deviation correcting jack assembly, a sliding box, a sensor assembly and a control center, wherein a pushing counter force frame is arranged at one end of the sliding box; a slideway is arranged on the upper surface of the sliding box; deviation correcting counter force plates are respectively fixed to two sides of the slideway; the surface of the slideway mutually cooperates with an MGE plate to form a sliding structure; the jacking jack is used for supporting the MGE plate and moves along with the MGE plate; a secondary slideway is arranged on the side wall of the jacking jack, and cooperates with a piston assembly of the horizontal pushing jack to form a horizontal sliding structure; the horizontal pushing jack is fixed to the side wall of the pushing counter force frame; deviation correcting jacks are respectively connected to symmetrical positions on two sides of the jacking jack; and the piston ends of the deviation correcting jacks are respectively dead against the deviation correcting counter force plates on the two sides. The walking pushing device disclosed by the invention has the advantages that automatic real-time dynamic deviation correcting can be realized; the system is simple in structure, small in working space, low in cost, simple and convenient to construct, and high in speed; and during working, piers are free from the horizontal pushing force, so that the safety is high.

Description

technical field [0001] The invention relates to a construction device for civil engineering, in particular to a walking pushing device and a pushing method for the overall translation of large components. Background technique [0002] Continuous jacking technology has been more and more widely used in translational construction of large components. For long-span structures such as steel box girder jacking construction of bridges, the existing construction methods generally adopt continuous jacking or towing, and the steel box girder or concrete girder needs to be temporarily reinforced with external cables to release the bridge; The form of steel strand traction is adopted, and the steel strand needs to be reinstalled every time a section is pushed. The construction process of this method is cumbersome, the cost is high, and it can only move forward but not backward. At the same time, the horizontal thrust or pulling force of repeated starting is unfavorable to the stress w...

AI Technical Summary

Problems solved by technology

But it has the following defects: 1. The structure of the slideway and the slide box is complex, large in size, heavy in weight, difficult to process, high in cost, and requires a large working space

However, this method has disadvantages: 1. Each box girder is required to use a long black line to mark the central axis band during production, which requires a large amount of work and requires high precision, otherwise the central axis will have a large error after splicing the box girders.

2. The photoelectric switch cannot detect the black central axis belt, which means that there is an offset, but which side is offset, it still needs to be manually determined before correcting, so it is actually impossible to achieve automatic, real-time dynamic correction

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