| 基于差分技术的悬索桥主缆高程测量误差修正方法 |
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| 引用本文： | 戚斌,宋亚宏,岳顺.基于差分技术的悬索桥主缆高程测量误差修正方法[J].测绘与空间地理信息,2017(2):190-191. |
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| 作者姓名： | 戚斌 宋亚宏 岳顺 |
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| 作者单位： | 1. 蚌埠市交通基本建设工程质量监督管理局,安徽蚌埠,233000;2. 河海大学地球科学与工程学院,江苏南京,211100 |
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| 摘 要： | 悬索桥基准索股是主缆架设的重要部分,基准索股垂直度测量主要采用三角高程测量法,而大气垂直折光差是影响三角高程测量的主要误差源。本文以等影响原则为前提,对差分技术的原理进行分析,利用基准点已知信息,对三角高程测量中的大气垂直折光差进行修正,从而提高基准索股垂直度测量的精度。上述方法能够满足主缆架设精度要求,并且在实际应用中得到了较好的结果,可为类似桥梁工程提供指导。
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| 关 键 词： | 差分技术 误差修正 大气折光差 测设误差 |
Based on Differential Technology of Suspension Bridges Main Cables Height Measurement Error Correction Method |
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| QI Bin,SONG Ya-hong,YUE Shun.Based on Differential Technology of Suspension Bridges Main Cables Height Measurement Error Correction Method[J].Geomatics & Spatial Information Technology,2017(2):190-191. |
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| Authors: | QI Bin SONG Ya-hong YUE Shun |
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| Abstract: | Suspension bridge of datum strand is an important part of the erection of main cable,the datum strand verticality measurement mainly uses the method of trigonometric leveling,and atmospheric refraction error is the main sources of error in trigonometric leveling.With the equal influence of the principle as the prerequisite,the principle of differential technology is analyzed,the use of a known reference point information for trigonometric leveling vertical atmospheric refraction error correction,thereby improving the accuracy of Strand of vertical measurement.The above-described method can meet the accuracy requirements for the main cable,and obtained good results in practical applications,can provide guidance for similar bridge engineering. |
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| Keywords: | differential technology error correction atmospheric refraction error measurement error |
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