Method and system for conducting unilateral measurement on orbit control net pile points

Abstract

The invention discloses a method and system for conducting unilateral measurement on orbit control net pile points. The method comprises the steps that height differences, measured by all free measuring stations, of adjacent pile points of an orbit control net on a unilateral line are recorded; a trigonometric leveling network is built in the mode that a three-side level closed ring is built through every three adjacent pile points; for each closed ring of the trigonometric leveling network, three-side level difference closure error counting is conducted according to the level difference amongthe three adjacent pile points of the closed ring; whether the level measurement result on the unilateral line is qualified or not is judged according to the three-side level difference closure errorcounting result. Accordingly, unilateral measurement can be conducted on upstream or downstream CPIII points of the line, and operation and maintenance of a rail section of a V-shaped skylight duringrailway operation are facilitated.

Description

technical field [0001] The invention relates to the technical field of track parameter measurement, in particular to a method and system for unilaterally measuring track control network pile points. Background technique [0002] With the construction and operation of large-scale passenger dedicated lines in my country, the trains run fast and have high requirements for safety, stability, and punctuality. High-quality maintenance and repairs must be carried out to ensure the safety and quality of passenger dedicated lines. This requires the establishment of stricter operating standards, an updated maintenance and repair model, a high-precision precision measurement and control network, and research on precision detection technology and equipment for full geometric parameters of the track. [0003] At present, the track control network (CPⅢ) is the benchmark for high-speed railway track laying and operation and maintenance, and is the key basis for ensuring the smoothness of h...

AI Technical Summary

Problems solved by technology

[0004] However, in some railways (such as Qinshen Passenger Dedicated), the section is affected by the operation time of the V-shaped skylight (non-vertical skylight) during the railway operation, and the up and down operation time of the same section of the line is not in the same skylight time period, and the non-vertical skylight is strictly prohibited to cross the line. Professional in measurement, can only observe CPⅢ point on one side of the line, and need to perform unilateral measurement

Therefore, the CPⅢ measurement method used at home and abroad to simultaneously measure CPⅢ point pairs on both sides of the line cannot be applied to the railway section with V-shaped skylights during railway operation.

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