文献类型： 外文期刊
作者： Hao, Xingyao 1 ; Pan, Yuchun 1 ;
作者机构： 1.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
关键词： Earthwork calculation; Triangulated Irregular Network (TIN); Errors Propagation; Assessment of accuracy
期刊名称：INTELLIGENT AUTOMATION AND SOFT COMPUTING （ 影响因子：1.647； 五年影响因子：1.469 ）
ISSN： 1079-8587
年卷期： 2011 年 17 卷 6 期
页码：
收录情况： SCI
摘要： In most of conventional methods for calculating earthwork, the assessment of accuracy contains many uncertainties. This paper discusses the relationship between the accuracy of terrain data and that of the earthwork calculation. The main research method is propagation of error, and a formula is created which expresses the quantity relationship that how the errors of terrain data effects the accuracy of earthwork calculation. Setting the different values of parameters, the relative errors can be calculated. Through adjusting values of parameters, it is easy to make a plan of data acquisition that is cost-optimal and meets the accuracy requirement of the land consolidation. In the end, the calculating methods with different sources of terrain data are discussed.
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