Abstract：Taking the Qinling Tunnel engineering project as example and the survey and design as presupposition, the paper expounds the surveying distribution method by using the GPS control network for the extra-long tunnel, including the design of working scheme, outdoor reconnaissance and the resolving calculation and evaluation of traverse's vectors, the lateral error of control network and its accuracy and reliability, etc. At the same time, the relative existing problems in surveying distribution and the matters for which attention should be paid are also introduced briefly in this paper.
张项铎. 浅论特长隧道GPS网的布测及其精度[J]. 铁道工程学报, 2001, 18(4): 85-88.
ZHANG Xiang-duo. SURVEYING DISTRIBUTION OF GPS CONTROL NETWORK FOR EXTRA-LONG TUNNEL AND ITS ACCURACY. Journal of Railway Engineering Society, 2001, 18(4): 85-88.
2001, Vol. 18 
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