基于Surfer的土地整理土石方量计算及精度分析

Precision analysis and earthwork computation of land consolidation based on surfer

在土地整理中经常需要土石方量计算,本文将Surfer应用于土石方量计算中。通过实验证实利用改进谢别法与径向基函数法对土地整理场地数据网格化精度较高。同时采用梯形规则、辛普森规则与辛普森3/8规则进行土石方量计算,将结果与传统方法对比并参见国家标准,证明应用Surfer进行土地整理中土石方量计算的精度可靠性。

In this paper,Surfer is used to earthwork computation in land consolidation.Experiments show that Modified Shepard’s Method and Radial Basis Function are suitable to data gridding in land consolidation and have higher precision.Earthwork can be simultaneously calculated by three methods： Extended Trapezoidal Rule,Extended Simpson’s Rule,and Extended Simpson’s 3 /8 Rule.As this new method is compared with the traditional ones and refer to national criteria,therefore,the experiments should prove that the method of suffer application to the earthwork computation is reliable in precision.