Existing double-track railway route position reconstruction method

Abstract

The invention relates to an existing double-track railway route position reconstruction method. The existing double-track railway route position reconstruction method comprises the following steps ofusing a mode of adjusting both a broken line and a curve to form a curve adjusting computing unit after collecting track centre and construction clearance position data in field operation; determininga left line theoretical straight line edge, constructing a right line theoretical straight line edge and building an adjusting curve; determining a left line curve element and a right line curve element by using systems such as left line through adjusting mileage, right line through adjusting mileage, right line projection mileage and so on and following principles that track lining quantity, construction clearance and track center distance widening value satisfy professional design requirements and design element thresholds and working record elements are taken into consideration; and forming an existing double-track railway mathematical theoretical center line to realize the existing double-track railway route position reconstruction. The existing double-track railway route position reconstruction method has the advantages that difficult problems in existing railway survey, design, construction, operation and maintenance aspects are solved; and wide referential values are obtained for retesting data processing of the existing railways, such as high speed railway, interurban railway, urban rail transit and so on, and construction units, railway working maintenance departments andsubway working maintenance departments.

Description

technical field [0001] The invention belongs to the technical field of existing railway reconstruction survey, design, construction and public works maintenance and repair, and in particular relates to a line position reconfiguration method of an existing double-track railway. Background technique [0002] In the "Reconstruction Railway Engineering Survey Specifications", it is required to use CPIII control network for track laying, but the specification does not involve the method of obtaining the coordinates of the existing line theory center line matched with CPIII control network. [0003] At present, in the survey, design and construction process of existing railways, surveying units are still accustomed to the conventional survey mode, that is, mileage measurement + external displacement pile + single curve rectification measurement mode under an independent coordinate system; construction units use external displacement piles and line spacing as Construction informati...

AI Technical Summary

Problems solved by technology

The traditional measurement mode has problems such as irregular line position of the existing railway, low mileage measurement accuracy, mismatch between the measured mileage and the theoretical coordinates, inconsistency between the deflection angle of the curved survey and the angle of the externally moved pile, and inconvenient construction and laying out, which lead to problems in the existing railway. The survey and design cannot provide the theoretical coordinates of the center line, and cannot achieve the purpose of construction according to the coordinate method

During the long-term operation of the existing railway, the relative design position of the track will inevitably deviate. The reconstruction technology of the existing double-track railway is complicated and there are many influencing factors

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