| 夜间江面大气折光系数的变化规律 |
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| 引用本文： | 魏浩翰,郑加柱,王子君,白新宇.夜间江面大气折光系数的变化规律[J].南京林业大学学报(自然科学版),2007,31(3):107-110. |
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| 作者姓名： | 魏浩翰 郑加柱 王子君 白新宇 |
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| 作者单位： | 1. 南京林业大学土木工程学院,江苏,南京,210037
2. 河南焦作供电公司,河南,焦作,454100 |
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| 基金项目： | 南京林业大学校科研和教改项目 |
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| 摘 要： | 结合南京长江三桥钢索塔的施工测量实践,模拟现场环境进行夜间江面单向三角高程大气折光的试验研究,并对大气折光系数的变化规律进行分析,提出了利用已知精密高差求夜间江面大气折光系数的方法.对指导夜间钢索塔的拼装测量,以及提高三角高程测量的精度有一定的实用价值.
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| 关 键 词： | 施工测量 大气折光 三角高程 南京长江三桥 大气折光系数 变化规律 Refraction Study Night River Above 价值 精度 三角高程测量 拼装测量 指导 方法 高差 利用 分析 研究 试验 现场环境 模拟 |
| 文章编号： | 1000-2006（2007）03-0107-04 |
| 修稿时间： | 2006-09-142007-03-05 |
Study on the Astronomical Refraction's Coefficient Above the River at Night |
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| WEI Hao-han,ZHENG Jia-zhu,WANG Zi-jun,BAI Xin-yu.Study on the Astronomical Refraction''''s Coefficient Above the River at Night[J].Journal of Nanjing Forestry University(Natural Sciences ),2007,31(3):107-110. |
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| Authors: | WEI Hao-han ZHENG Jia-zhu WANG Zi-jun BAI Xin-yu |
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| Institution: | 1. College of Civil Engineering Nanjing Forestry University, Nanjing 210037, China 2. Jiaozuo Power Supply Company Henan Province, Jiaozuo 454100,China |
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| Abstract: | Combined with the construction survey practice of steel-pylon in the third Yangtse River bridge of Nanjing, though the experiment of one-way trigonometric leveling astronomical refraction above the river at night simulating the on-the-spot environment, the changing regulanity of astronomical refraction quotiety was analyzed, and the ways of reducing the effct that astronomical refraction made on the precision of the bigonometic leveling were introduced. The essay aimed at guiding the assembly of the steel-pylon at night. The conclusions are practical to enhance the precision of bigohometric leveling. |
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| Keywords: | Construction survey Astronomical refraction Trigonometric leveling The thirdYangtse River bridge of Nanjing |
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