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《Journal of Southwest Jiaotong University》 2008-06
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Simulated Determination of Accuracy Requirement for Control Points Ⅲ Intersection Networks in High-Speed Railway

LIU Chenglong,YANG Youtao,XU Xiaozuo(School of Civil Eng.,Southwest Jiaotong University,Chengdu 610031,China)  
To meet the accuracy requirement of relative positioning,it is necessary to perform the further investigation on the form of CPⅢ(control points Ⅲ) control networks and the precision evaluation of observations from field surveying.By combining the standard with the improved forms of CPⅢ control networks,a rigorous method for accuracy estimation based on the parameter adjustment of side-angle measurement network was proposed.A simulated test was performed to investigate the relative accuracy between points,and the necessary precision assessment for field observations was further discussed.The research result shows that the azimuth measurement accuracy of less than ±1″ and the distance measurement accuracy of less than ±(1+1×10-6) mm in a high-speed railway system are respectively required.The research provides a reference for the revision of the present measurement specification for high-speed roadway and the selection of surveying methods for ballastless track.
【Fund】: 国家自然科学基金资助项目(50478085)
【CateGory Index】: P228.4
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【References】
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1 WANG Guo-chang1,XU Xiao-zuo2,LIU Cheng-long2(1.Surveying and Mapping Branch,China Railway Eryuan Engineering Group Co.Ltd,Chengdu 610031,China;2.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China);Research and Application of Closure for High Speed Railway CPⅢ Plane Network[J];Journal of the China Railway Society;2009-05
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【Co-citations】
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1 CAI Guo-zhu,WANG Shao-ming,MAN Kai-di,YANG Sheng-li,GUO Yi-zhen(1.Institute of Modern Physics,Chinese Academy of Sciences,P.O.Box 31,Lanzhou 730000,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China);Survey control network of HIRFL-CSR[J];High Power Laser & Particle Beams;2005-10
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3 CHEN Zhao-lin1,ZHANG Shu-bi1,MIN Shan2 (1.School of Environment and Spatial Informatics, China University of Mining and Technology,Xuzhou 221008,China;2.Instrument Management Center of Geophysical Exploration Company,Shengli 257100,China);ACCURACY COMPARISON OF TWO COORDINATE TRANSFORMATION MODELS[J];Surveying and Mapping of Sichuan;2007-05
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6 ZHANG Yan-qiang ZHANG Hai-feng ZHANG Xiao-wei(School of Science,Xi’an University of Architecture and Technology,Xi’an 710055,China);Three-dimensional Indirect Adjustment Method Based on Engineering Control Surveying Using Total Station[J];Surveying and Mapping;2009-03
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【Co-references】
Chinese Journal Full-text Database 1 Hits
1 LU Jian-kang1,REN Zi-zhen2,CEN Min-yi2(1.China Railway Eryuan Engineering Group Co.Ltd,Chengdu,Sichuan 610031,China;2.Southwest Jiaotong University,Chengdu,Sichuan 610031,China);Optimum Design of Plane Control Net for Construction of Ballastless Track of Passenger Dedicated Railway[J];Journal of Railway Engineering Society;2007-08
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