常温常导高速磁浮轨道安装测控高程控制网测量技术研究

Research on Measurement Technology of Elevation Control Network for Installation Measurement and Control of High-speed Maglev Track at Normal Temperature and Normal Conductivity

目前我国已建成和在建的磁悬浮轨道交通工程项目较少,而且磁悬浮轨道结构既不同于传统高速铁路,并没有完全定型,也没有完善的高速磁浮铁路测量体系,同时缺乏相关理论和技术规范作为测量依据。而现有的较为成熟的轮轨高铁测量体系与测量方法,其测量精度无法达到高速磁浮轨排平顺性的精度要求,无法指导高速磁浮轨道高程控制网(CFIII)的建网和相关测设工作,如何建立高精度的CFIII高程控制网成为迫切需要解决的问题。基于自由测站三角高程间接高差测量原理和新型测量设备激光跟踪仪,本文研究了一种新的CFIII高程控制网测量方法,并进行了相关实验分析,证明可大幅提高高速磁浮轨道平顺性测量效率和精度。

At present,there are few maglev rail transit projects that have been built or under construction in my country,and the maglev track structure is different from traditional high-speed railways,not fully finalized,nor a perfect high-speed maglev railway measurement system,and lacks relevant theories and technical specifications.Measurement basis.However,the existing relatively mature wheel-rail high-speed railway measurement systems and measurement methods cannot meet the accuracy requirements of the high-speed maglev rail row smoothness,and cannot guide the construction of the high-speed maglev rail elevation control network(CFIII)and related measurement and design work.,how to establish a high-precision CFIII elevation control network has become an urgent problem to be solved.Based on the principle of indirect height difference measurement of free station triangular elevation and a new type of measurement equipment laser tracker,this paper studies a new CFIII elevation control network measurement method,and conducts relevant experimental analysis,which proves that it can greatly improve the measurement of high-speed maglev track ride comfort.Efficiency and Precision.