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《Construction Technology》 2008-11
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Improvement of Precision in Deformation Measurement at Linear Intersections Using Small-angle Triangle in Skyscraper Construction

Mo Nanming~1,Guo Jingjun~2,Zhang Shengliang~3,Lu Jingwen~3(1.Kunming University,Kunming,Yunnan 650118,China;2.Tsinghua University, Beijing 100084,China;3.Beijing Zhongjian Huahai Engineering Survey Co.,Ltd.,Beijing 100102,China)  
The author analyzes the error calculation formula of the intersection point by coordinating the formula of linear intersection point in the process of specifications of surveys according to the law of propagation of errors.In this regard the author also improves the intensity of minor angle triangle's figure,and finds out the highest accuracy intersection points of minor angle triangle of linear intersection and analyzes its coordinate and accuracy.It is concluded that the accuracy of intersection point is close to the best figure,i.e.,the intersection accuracy of equilateral triangle by means of theoretical analysis after it is improved,and it also improves the accurate grade of deformation observation point.The occurrence of minor angle triangle in the field of deformation measurements,cadastral survey,control survey,construction template making measurements and other works can provide a new way to solve the problems for optimizing position accuracy measurements.
【Fund】: 云南省教育厅科学研究基金项目(08Y0354)
【CateGory Index】: TU196.1
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Chinese Journal Full-text Database 4 Hits
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