River-crossing leveling with TC2000 and its precision analysis
FAN Bai-xing, XIA Zhi-guo(Institute of Surveying and Mapping, Information Eng. University, Zhengzhou 450052, China)
The paper introduces the theory, design proposal, method, precision analysis of river-crossing leveling, which was executed in vertical control surveying of Huanghe river road bridge in Luoyang. Besides, the article gives out new precision estimation formula of trigonometric leveling with distant measure in river-crossing leveling and calculating result with author's adjustment program in VB 6.0. At last, some important conclusion was arrived by comparing estimation with adjustment result.
【CateGory Index】： P224