摘要
采用自动化变形监测系统进行监测时,准确的工作基点坐标是获得真实监测结果的保障,基准网中是否存在动点关系到能否获取准确的工作基点坐标。论述基准点稳定在变形监测中的重要性,详述组合后验方差检验法在稳定性检验中的使用方法,并利用它对南京市某地铁隧道区间内变形监测平面的基准网进行稳定性分析,准确找出不稳定点,对实际工程监测具有一定参考意义。
Automatic deformation monitoring is used in many subway tunnels. Obtaining the actual monitoring result is based on the accurate coordinates of work base points. And stable reference points play important roles to get accurate coordinates. This paper illustrates the importance of the stable reference points to the deformation monitoring and the usage of the combination of posterior variances text in stability analysis. A stability test of horizontal datum network in a subway tunnel in Nanjin is done to verify the practicability of the combination of posterior variances. Through this analysis, the moving points are found. This analysis has certain reference significance for practical engineering monitoring.
出处
《交通科技与经济》
2014年第3期111-114,共4页
Technology & Economy in Areas of Communications
关键词
隧道区间
稳定性检验
组合后验方差
subway tunnel
stability analysis
the combination of posterior variances
