| 工程监测网的稳定性分析 |
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| 引用本文： | 倪进生,沈明华,夏良椿. 工程监测网的稳定性分析[J]. 武汉大学学报(工学版), 1988, 0(4) |
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| 作者姓名： | 倪进生 沈明华 夏良椿 |
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| 作者单位： | 武汉水利电力学院水利水电工程建筑及施工系(倪进生，沈明华)，武汉水利电力学院水利水电工程建筑及施工系(夏良椿) |
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| 摘 要： | 工程监测网中,如何判定网点的稳定性,是变形观测资料分析中的重要问题。本文通过对多期的观测资料,选用不同的平差方法,由平差结果的统计,检验分析,逐步地选取拟稳点,在秩亏自由网平差的基础上,通过2～3次拟稳平差,完全可以真实地反映监测网点位的变形信息,这是一种简便、可行的稳定性分析的方法。文中还画出了各观测周期平差结果的矢量图。文章最后提出了监测网布设、平差和稳定性分析的基本原则。
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| 关 键 词： | 变形观测控制网 稳定性 平差值 |
Stability Analysis of Engineering Monitoring Nets |
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| Ni Jinsheng, Chen Minghua, Xia Liangchun. Stability Analysis of Engineering Monitoring Nets[J]. Engineering Journal of Wuhan University, 1988, 0(4) |
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| Authors: | Ni Jinsheng Chen Minghua Xia Liangchun |
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| Affiliation: | Ni Jinsheng; Chen Minghua; Xia Liangchun |
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| Abstract: | In engineering monitoring nets, how to determine the stability of the net points plays an important role in data analysis of deformation observation, In this paper several methods of adjustment are implemented on the basis of multitemporal observation data and then the quasi-stable points are determined gradually through statistic analysis and testing of adjustment results. It has been shown that the deformation information in the points of monitoring nets can be truly revealed after two or three times of quasi-stable adjustment, based on free net adjustment with rank deficiency. The schema presented in this paper is a simple and feasible one for stability analysis. In addition the vector diagram of adjustment results in every observation circle is given. Finally the fundamental principle of layout, adjustment and stability analysis of monitoring nets is proposed. |
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| Keywords: | deformation observation control stability adjusted value |
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