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《Engineering of Surveying and Mapping》 2009-02
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Precision design and building of GPS controling net in Qinling tunnels

YUAN De-bao1,CUI Xi-min1,LANG Bo1,WU Jian-hua2,HAN Zhi-sheng1(1.School of Resource and Safety Engineering,CUMT,Beijing 100083,China;2.Electrication Bureau Group of Xi'an Railway Construction CO.LTD,Xianyang 700001,China)  
Embarking from the tunnel penetration error's limiting value,has calculated the GPS tunnel net pit mouth control point claimed accuracy,and discussed the tunnel group GPS net's building,precision design and quality controlling and has given the corresponding result,which might supply the actual reference.
【Fund】: 国家重点基础研究发展规划(973)项目(2007CB209400);; 教育部新世纪优秀人才支持计划资助项目(NECT-07-07098);; 矿山空间信息技术国家测绘局重点实验室开放基金资助项目(KLM200816)
【CateGory Index】: P228.4
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