摘 要:各大城市根据城市轨道交通线网的规划布局,均建立了与之对应的地面控制网。做好不同线路、不同时期的轨道工程地面控制网间的衔接,以及对预留轨道进行准确测量至关重要。文章基于城市轨道交通工程预留轨道现状的变化,结合工程实例,就地面控制网的建立与复测、地面和地下控制网联系测量、地下轨道测量、断面测量等具体工作进行了探讨,分析了相关的测量精度及变形量值,给出了在设计阶段解决预留轨道变形这一问题的思路。
关键词:地面控制网建立;控制网复测与维护;轨道测量;精度分析;线路拟合
DOI:10.19850/j.cnki.2096-4706.2022.06.029
中图分类号:TP391 文献标识码:A 文章编号:2096-4706(2022)06-0115-04
Analysis and Measurement Research on Current Status of Reserved Track in Urban Rail Transit Project
LYU Wenjun
(China Railway First Survey and Design Institute Group Co., LTD., Xi’an 710043, China)
Abstract: According to the planning and layout of urban rail transit line network, major cities have established the ground control network corresponding to it. It is important to do a good job of connecting the ground control network of rail projects of different lines and different periods, and to accurately measure the reserved track. Based on the change of the current status of urban rail transit project reserved track, combined with the engineering examples, this paper discusses the establishment and retest of the surface control network, contact measurement of ground and underground control network, underground rail measurement, cross section measurement and other specific work, analyzes the related measurement accuracy and deformation number, presents the train of thought of solving this problem of reserved track deformation in the design stage.
Keywords: ground control network establishment; control network retest and maintenance; orbit measurement; accuracy analysis;line fitting
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作者简介:吕文军(1989.02—),男,汉族,陕西宝鸡人,工程师,工学硕士,主要研究方向:精密工程测量及城市轨道交通工程测量。