工程土方计量空间插值方法对比分析研究
摘要
为了更加准确地通过有限的地面测量点数据进行工程土方量计算,本文以新左旗光伏发电厂平整地项目为例,采用反距离加权插值法、样条插值法、克里金插值法、自然邻域插值法等不同的DEM模型内插方法计算工程土方量,通过对计算结果精度的对比分析,发现运用克里金插值法在不同地形条件下生成的数字高程模型在土方计量方面的计算精度较高。
In order to more accurately calculate the engineering earthwork volume through limited ground measurement point data, this paper takes the Xinzuoqi photovoltaic power plant leveling project as an example, calculating engineering earthwork by using different distance DEM model interpolation methods such as inverse distance weighted interpolation method, spline interpolation method, Kriging interpolation method and natural neighborhood interpolation method. Through the comparative analysis of the accuracy of the calculation results,the digital elevation model generated by Kriging interpolation method under different terrain conditions has higher calculation accuracy in earthwork measurement.
In order to more accurately calculate the engineering earthwork volume through limited ground measurement point data, this paper takes the Xinzuoqi photovoltaic power plant leveling project as an example, calculating engineering earthwork by using different distance DEM model interpolation methods such as inverse distance weighted interpolation method, spline interpolation method, Kriging interpolation method and natural neighborhood interpolation method. Through the comparative analysis of the accuracy of the calculation results,the digital elevation model generated by Kriging interpolation method under different terrain conditions has higher calculation accuracy in earthwork measurement.
引文
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[2]谭衢霖,徐潇,王浩宇,等.不同地貌类型区DEM空间内插算法精度评价[J].应用基础与工程科学学报,2014,22(1):139-149.
[3]李孟,刘丹丹,陈香,等.几种常用DEM制作方法的对比分析[J].江西测绘,2012(4):33-34.
[4]曹俊茹,刘强,姚吉利,等.基于Kriging插值DEM的计算土方量方法的研究[J].测绘科学,2011,36(3):98-99.
[5]汤国安,杨昕.ArcGIS地理信息系统空间分析实验教程[M].北京:科学出版社,2012.
[6]Li Zhilin.Effects of check points on the reliability of DTM accuracy estimates obtained from experimenta tests[J].Photogrammetric Engineering and Remote Sensing,1991,57(10):1333-1340.
[7]曹俊茹,刘强,姚吉利,等.基于Kriging插值DEM的计算土方量方法的研究[J].测绘科学,2011,36(3):98-99.