原始数据误差对放样点精度影响的探讨
A Study on the Influence of Initial Data Errors on the Accuracy of Alignment Points in Engineering Surveys
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摘要: 本文在文献3的基础上,进一步探讨了工程测量中原始数据误差对放样点精度影响的问题。首先,讨论了施工控制网中原始数据误差存在的形式、特点以及它们对放样点精度影响的传播规律,并建立了关于相对放样点位精度的矩阵公式。在此基础上,对现有的几种常用放样方法中原始数据误差的影响进行了分析和计算。结果表明,在施工放样测量工作中,应该密切注视原始数据误差的影响,并对此问题提出一些合理的建议。Abstract: This paper deals with the influence of initial data errors on accuracy of alignment points in engineering surveys on the basis of paper3. Firstly, the forms and characteristics of initial data errors in construction control networks, as well as laws of their propagation are discussed. Matrix representation of their influence on the accuracies of the relative position of alignment points are established. Based. upon the above the degrees of their influence are analysed and calculated for some common alignment methods, The results indicate ther more attention should be paid to the influence of initial data errors in setting up surveys. Some suggests are given.
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