| 雅砻江锦屏水电站交通辅助洞施工控制与精度分析 |
| |
| 引用本文： | 孙元亚,姚连璧.雅砻江锦屏水电站交通辅助洞施工控制与精度分析[J].现代测绘,2008,31(6). |
| |
| 作者姓名： | 孙元亚 姚连璧 |
| |
| 作者单位： | 1. 二滩水电开发有限责任公司,四川,成都,610021
2. 同济大学,上海,200092 |
| |
| 摘 要： | 本文围绕雅砻江锦屏水电站辅助洞17.5 km交通隧道工程重点介绍洞内施工导线测量的精度，分析了其中两次复测结果产生较大偏差的原因，采用加测陀螺方位角的方法改善导线的点位精度，削弱旁折光等因素可能产生的误差影响，实测数据的处理结果与分析表明加测陀螺方位角大大提高了导线的精度和可靠性。
|
| 关 键 词： | 导线 方位角 陀螺仪 旁折光 |
Construction Control Survey and Accuracy Analysis of Jingpin Hydroelectric Power Station's Transportation tunnel on Yalong River |
| |
| Sun Yuanya,Yao Lianbi.Construction Control Survey and Accuracy Analysis of Jingpin Hydroelectric Power Station's Transportation tunnel on Yalong River[J].Modern Surveying and Mapping,2008,31(6). |
| |
| Authors: | Sun Yuanya Yao Lianbi |
| |
| Institution: | Sun Yuanya1,Yao Lianbi2(1 Ertan Hydropower Development Company,Ltd.98 Shuanglin Chengdu,610021 China2 Department of Surveying , Geo-Informatics,Tongji University,1239 Siping Shanghai,200092,China) |
| |
| Abstract: | This paper focuses on the accuracy of construction traverse surveying of the 17.5 kilometers-long Jingpin Hydroelectric Power Station's transportation tunnel on Yalong River.The reason of big differences between two traverse surveying results is analyzed.The position accuracy of traverse surveying is improved by measuring gyro azimuth using high accuracy gyrotheodolite,meanwhile,the influence of lateral refraction error is also eliminated.The practical surveying results and consequent analysis shows that me... |
| |
| Keywords: | traverse surveying azimuth gyrotheodolite lateral refraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
