| 铁路联络线CPⅢ测量技术与数据处理 |
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| 引用本文： | 陈军.铁路联络线CPⅢ测量技术与数据处理[J].测绘通报,2020,0(2):113-117. |
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| 作者姓名： | 陈军 |
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| 作者单位： | 中铁上海设计院集团有限公司, 上海 200070 |
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| 摘 要： | 联络线在绕行方式、单双线、轨道结构、设计速度、设计高度上都与正线区别较大，运营期的维护检测要求全线CPⅢ整体测设，联络线由于单线绕行导致CPⅢ布设没有可利用的杆柱构筑物，同时CPⅢ测量上由于地势高差导致通视困难。通过宁启、宁杭等多条铁路现场调查研究，数据对比分析，研究结论如下：一是丰富了利用既有杆、柱构筑物布设CPⅢ的类型；二是研发非强制对中CPⅢ标志；三是进行了衔接段的共点布网方法研究。其中非强制对中CPⅢ标志获得了国家专利4项，衔接段的共点布网方法减少埋设工作量和联测工作量，极大提高了工作效率，并提出了"加密CPⅡ采用CPⅢ共点、加密水准采用加密CPⅡ共点"等新颖理念，可为GNSS高程测量、高程异常研究提供基础数据。
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| 关 键 词： | 联络线 轨道控制网CPⅢ 自由测站 三角高程 共点 |
| 收稿时间： | 2019-09-19 |
| 修稿时间： | 2019-12-10 |
CPⅢ survey technology and data processing of railway connecting line |
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| CHEN Jun.CPⅢ survey technology and data processing of railway connecting line[J].Bulletin of Surveying and Mapping,2020,0(2):113-117. |
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| Authors: | CHEN Jun |
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| Institution: | China Railway Shanghai Design Institute Group Co., Ltd., Shanghai 200070, China |
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| Abstract: | The connecting line is quite different from the main line in detour mode, single and double lines, track structure, design speed and design height, and the maintenance and inspection during the operation period require the whole line CPⅢ to be measured and laid out. The connecting line has no available pole and column structures for CPⅢ layout due to single line detour, and the CPⅢ survey is difficult to see due to terrain elevation difference. Through on-site investigation and data comparison and analysis of many railways such as Nanjing-Qidong Railway and Nanjing-Hangzhou Railway, the research conclusions are put forward:First, the types of CPⅢ layout using existing pole and column structures are enriched; The second is to develop non-mandatory centering CPⅢ logo; Thirdly, the method of co-point network distribution in the connection section is studied. Among them, 4 national patents have been obtained for non-mandatory centering CPⅢ marks. The co-point network distribution method for connecting sections reduces the burying workload and joint measurement workload, thus greatly improving the work efficiency. A novel concept such as "CPⅢ co-point is adopted for encrypted CPⅡ, and CPⅡ co-point is adopted for encrypted level" is put forward, which can provide basic data for GNSS elevation measurement and elevation anomaly research. |
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| Keywords: | connecting line track control network CPⅢ free observation station triangular elevation common point |
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