摘要
高速铁路CPⅢ轨道控制网为轨道铺设和后续运营维护提供了控制基准,需要定期对其进行复测。相对CPⅢ高程网复测,高速铁路CPⅢ平面网复测难度更大,需要注意的环节更多。文章结合笔者参与的国内多条高速铁路CPⅢ平面网复测的实践经验,通过对CPⅢ平面网复测过程中出现的若干突出问题和关键环节(如已知点联测方式、全站仪及棱镜检测、已知点兼容性检查、CPⅢ成果更新、超限点二次检测等)进行逐一、详细地分析和探讨,并给出具体的解决方法和实施应用标准,从而为今后高速铁路CPⅢ轨道控制网复测工作的顺利开展提供宝贵的经验和正确的思路,也对今后完善现有测量规范具有重要的参考意义和实用价值。
The track control network （CPⅢ）of high-speed railway provides control datum for track laying,subsequent operation and maintenance.It is necessary to resurvey CPⅢperiodically.The CPⅢhorizontal repetitive survey is rela-tively more difficult than vertical repetitive survey and has more workload to be done.Combined with practical experi-ences of CPⅢ horizontal repetitive survey of high-speed railways in China,in the paper a discussion has been made on the main problems and key points during CPⅢ horizontal repetitive survey one by one in detail.Then specific solution and implementation standards have been presented finally,which will provide valuable experiences and proper ideas for CPⅢ track control network repetitive survey of high-speed railway and also a good reference for improving the existing survey specifications in the future.
出处
《高速铁路技术》
2014年第3期54-58,共5页
High Speed Railway Technology
关键词
高速铁路
轨道控制网
复测
问题
high-speed railway
track control network
repetitive survey
problems
