地形图测量精度对土石方计算的影响分析_胡吉伦.pdf

( 430071) B 1671-9913(2014)03-0027-06 P2 DOI:10.13500/j.cnki.11-4908/tk.2014.03.006 Effect of Relief Map Measure Precision on Calculation of Earth Stone Square HU Ji-lun, CHENG Zheng-feng, XYU Hui (China Southern Electric Power Design Institute, Wuhan 430071, China) In order to meet the design requirement on earthwork quantity calculationthis article analyses the similarities and differences on topographic map survey in the different surveying specifications, analysis the total station triangle elevation measurement accuracy and propose topographic point elevation accuracy index and topographic point note spacing requirements. At the same time, this article analyses the influence on earthwork calculation from point elevation accuracy.  spacing of the elevation ooint; elevation difference accuracy; earthwork quantity (TIN) ()