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夜间江面大气折光系数的变化规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2007年03期
Page:
107-110
Column:
研究论文
publishdate:
2007-03-20

Article Info:/Info

Title:
Study on the Astronomical Refraction’s Coefficient Above the River at Night
Article ID:
1000-2006(2007)03-0107-04
Author(s):
WEI Hao-han1 ZHENG Jia-zhu1 WANG Zi-jun1 BAI Xin-yu2
1. College of Civil Engineering Nanjing Fores’try University, Nanjing 210037, China; 2. Jaozuo Power Supply Company Henan Province, Jiaozuo 454100. China
Keywords:
Construction survey Astronomical refraction Trigonometric leveling The third Yangtse River bridge of Nanjing
Classification number :
TU198
DOI:
10.3969/j.jssn.1000-2006.2007.03.023
Document Code:
A
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. Tbe conclusions are practical to enhance the precision of bigohometric leveling.

References

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Last Update: 2013-05-20