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高铁建设因为要求精度高、施工时间长、投入大,往往一条线路分为几个甚至几十个标段进行施工,轨道控制网的测设不可能一次性完成,只有施工进行一部分,测设一部分,合理的区段搭接方式是保证高速铁路平稳运行的基础。本文通过对杭长客专江西段轨道控制网测设搭接段典型数据的总结、分析,对比余弦法、置平法和四参数法的结果,认为余弦法更适合在国内高铁轨道控制网测段搭接中推广使用。
High-speed rail construction because of the requirements of high precision, long construction time, large investment, often a line is divided into several or even dozens of tenders for construction, track control network measurement can not be completed at one time, only part of the construction, measuring part , Reasonable section overlap is to ensure the smooth operation of high-speed railway basis. This article summarizes, analyzes and compares the results of cosine method, set-flat method and four-parameter method for the typical data of the lapped section of the orbit control network of the Hangchang-guest-engineering Jiangxi section. It is considered that the cosine method is more suitable for the domestic high-speed rail network Segment in the promotion of the use of.