A trackless construction method for flexible catenary in subway depot

Abstract

The invention relates to a trackless construction method for a flexible catenary in a subway vehicle depot, which is characterized in that it includes the following steps: (1), calculation of the point coordinates of a pillar pile, a guy wire foundation pile and a corresponding line center pile; (2), a pillar pile , Coordinate measurement and positioning of cable foundation piles and corresponding line center pile points; (3), foundation pouring, pillar assembly, girder measurement and wrist arm calculation, material ordering; (4), girder erection, wrist Arm preconfiguration, installation and review. The invention is scientific and reasonable, and has the advantages of shortening construction time, improving construction precision, safety and reliability, reducing construction cost, and being easy to implement, and is a relatively innovative construction method for a flexible catenary in a subway depot.

Description

Technical field [0001] The present invention belongs to the field of subway construction, relates to a flexible catenary construction method, in particular a subway depot flexible catenary trackless construction method. Background [0002] At present, in the construction process of flexible catenary network in the subway depot, the conventional practice of laying the track first and then constructing it is adopted, and after the track is laid, the position of the pillar, the pull line foundation and the height of the foundation surface from the embankment surface are measured according to the track, and the excavation of the foundation pit and the foundation pouring are carried out, and on this basis, the construction of other processes such as pillar assembly, rectification, marking red line, door beam erection, pillar assembly, wrist arm provisioning and installation is carried out. [0003] These traditional construction methods are time-consuming and require finalization, pr...

AI Technical Summary

Problems solved by technology

[0003] These traditional construction methods are time-consuming, and measurement, product ordering and catenary construction can only be carried out after the track is completed

Once the track is paved, the ring network cable, communication, signal, electromechanical, decoration, greening and other disciplines are under construction at the same time. The work overlaps seriously, and the construction position is prone to conflict. However, the flexible catenary arm, positioning tube, and positioning tube support , Wrist arm support, door beam and other components have a long production cycle, many installation procedures, and high installation accuracy requirements, which seriously affect the construction period of the catenary

At the same time, after the track is paved, the catenary is easy to pollute the ballast when excavating the foundation pit, and it is impossible to use excavators, concrete tankers, truck cranes and other mechanical equipment to enter the site for construction. The construction efficiency is low and the construction period is even tighter.

[0004] Through the search of published patent documents, no published patent documents identical to this patent application have been found

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