摘要
本文结合黄河双线铁路大桥的变形监测实况,分析和讨论了观测中的主要系统误差——旁折光误差的机理和性质;采用回归分析,自检校平差方法建立了系统误差模型,较好地抵制了该误差的影响,提高了变形监控的可靠性。
In connection with the actual conditions of the deformation monitoring of Huanghe double line railway bridge, this paper analyses and discusses the mechanism and characteristics of the main systematicerror-horizontal refraction error. A systematic error model is established adopting regression analysis and self-calibration adjustment method. It effectively controls the influence of these errors and enhances the reliability of the deformation monitoring.
出处
《勘察科学技术》
1993年第4期46-49,45,共5页
Site Investigation Science and Technology
