摘要
本文结合工程实例,讨论用拟稳平差法进行变形分析时,变形监测网的网形结构对网点稳定性检验结果的影响。研究表明,当网中拟稳点组无法独立构成网形时,其余动点的位移将对拟稳点在各观测周期间的坐标值变化产生影响,致使其点位的稳定性分析结果受到扭曲。当网中动点的位移具有趋向性时,这种影响尤为显著。
This paper, based on the engineering cases, discusses the impact of deformation monitoring network structure on the stability inspection of control point. Studies have shown that when draft steady group was unable to form network at the shape independently in network, the others could move displacement a bit to draft steady coordinate, making value change at each observation period, which should cause stability analysis result of the point position to be twisted. Besides, when the movement has tendency in the network, the impact is particularly heavy.
出处
《工程勘察》
CSCD
北大核心
2006年第9期62-64,共3页
Geotechnical Investigation & Surveying
关键词
变形监测
拟稳基准
趋向性位移
稳定性分析
deformation monitoring
approximate steady datum
displacement tendency
stability analysis
