施工高度中误差对方格网法计算土方量的影响  

Effect of Root Mean Square Error of Construction Height on Grid Method in Earthwork Calculating

作　　者：王铁生[1] 程鹏里[1] 赵东保[1] 

机构地区：[1]华北水利水电学院,河南郑州450000

出　　处：《水利与建筑工程学报》2013年第2期86-89,共4页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金"多源多尺度矢量道路网协调一致性匹配研究"(41101373)

摘　　要：通过对土方量计算原理、方法和精度的分析,推导出两种用方格网法计算土方量时施工高度中误差的计算公式,由此可计算出在不同边长和面积条件下的施工高度中误差,并通过分析得出在不同面积条件下,用方格网法计算土方量时为满足土方量精度要求的最佳方格网边长范围。Through the analysis of earthwork calculation principle, method and accuracy, two kinds of formulas for the mean square error of construction height when using square grid method to calculate earthwork are deduced here, and then the mean-square errors of the construction height with different grid length and different area are obtained by using the formulas, as well as the best grid length range is determined to meet the requirements of earthwork accuracy when cal- culating the earthwork with grid method.

关 键 词：方格网法 施工高度中误差 土方量 方格网边长范围 

分 类 号：P207.1[天文地球—测绘科学与技术]