【摘要】 介绍武汉市轨道交通一号线一期工程基准复测的精度要求,阐述采用GPS、精密数字水准测量等技术进行轨道交通一号线一期工程基准复测的观测、数据处理及达到的精度。根据复测数据分析了基准点的变形原因和规律,得出了一些有益的结论和建议。更多还原

【Abstract】 The precision requires of Repetition of Datum in Wuhan No.1Rapid Rail Transit Engineering are introduced.Based on GPS technology and digital leveling,the measurement and data-handling of the repetition of datum are presented.The cause and rule of deformation of datum point are analysized by data of repetition.Finally,some useful conclusions and suggestions are also given.更多还原