[1]庞远超.利用方向自适应投影统一运营铁路坐标系[J].高速铁路技术,2022,13(01):72-77.[doi:10.12098/j.issn.1674-8247.2022.01.013]
　PANG Yuanchao.Unified Operation of Railway Coordinate System by Directional Adaptive Projection[J].HIGH SPEED RAILWAY TECHNOLOGY,2022,13(01):72-77.[doi:10.12098/j.issn.1674-8247.2022.01.013]
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利用方向自适应投影统一运营铁路坐标系()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
13卷
期数:
2022年01期
页码:
72-77
栏目:
出版日期:
2022-02-28

文章信息/Info

Title:
Unified Operation of Railway Coordinate System by Directional Adaptive Projection
文章编号:
1674—8247(2022)01—0072-06
作者:
庞远超
中铁二院工程集团有限责任公司, 成都 610031
Author(s):
PANG Yuanchao
China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
关键词:
运营铁路|高斯投影|方向自适应|横向偏差|轨道精调
Keywords:
operating railway|Gaussian projection|directional adaptation|lateral deviation|fine track adjustment
分类号:
U212.2
DOI:
10.12098/j.issn.1674-8247.2022.01.013
文献标志码:
A
摘要:
为满足TB 10601-2009《高速铁路工程测量规范》中控制网设计时边长投影变形值的要求,设计院通常把1条几百公里的高速铁路划分为多个几十公里的工程投影独立坐标系。相邻坐标系之间的搭接段线路设计中线,可采用前、后投影带坐标系的设计参数来推算,由于投影变形导致相邻坐标系推算出的线路设计中线存在横向偏差,轨道精调时若处理不当,会降低轨道的平顺性,甚至影响运营铁路的行车安全。为解决换带搭接段设计中线的横向偏差,提高轨道精调的效率及精度,本文提出利用方向自适应投影将运营铁路多个坐标系统一为1个坐标系的方法,同时建立精确的线路参数转换模型,实现了原设计参数与新设计参数的精确转换。通过工程实例验证,坐标系统一后的线路参数与原设计参数较差较小,不会影响轨道平顺性,该方法可行。研究成果可为提升运营铁路精调效率提供借鉴。
Abstract:
In order to meet the requirement of side length projection deformation value of control network design in "TB 10601-2009 Code for Engineering Survey of High-speed Railway", the designer usually divides a high-speed railway of hundreds of kilometers length into several independent coordinate systems of tens of kilometers length for projection. The design parameters of the front and rear projection belt coordinate systems can be used to calculate the design centerline of the overlapping section between adjacent coordinate systems. Because of the projection deformation, the design centerline of the railway line calculated by the adjacent coordinate systems has lateral deviation. If it is not handled properly during the fine adjustment of the track, it will reduce the smoothness of the track and even affect the operation safety of the operating railway. In order to solve the lateral deviation of the centerline in the design of belt changing and overlapping section and improve the efficiency and precision of track fine adjustment, this paper proposes a method of unifying multiple coordinate systems of the operating railway into one coordinate system by using directional adaptive projection and furthermore establishes an accurate line parameter conversion model, which realizes the accurate conversion between the original design parameters and the new design parameters. Through the case study with a practical project, the difference between the line parameters after the coordinate system unification and the original design parameters, being small, will not affect the smoothness of the tracks. Thus the method is feasible. The study results can provide a reference for improving the efficiency of the fine adjustment for operating railways.

备注/Memo

备注/Memo:
作者简介:庞远超(1989-),男,工程师。引文格式:庞远超. 利用方向自适应投影统一运营铁路坐标系[J]. 高速铁路技术,2022,13(1):72-77.PANG Yuanchao. Unified Operation of Railway Coordinate System by Directional Adaptive Projection[J]. HIGH SPEED RAILWAY TECHNOLOGY, 2022, 13(1):72-77.
更新日期/Last Update: 2022-02-28