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土方量计算中,传统的方格网法受地貌和点位的影响较大,计算繁琐,而且精度也不高,本人通过多年的工作实践,把Excel应用于土方量的计算——三角微元法。根据已有地形图或地形点的三维坐标,把要计算方量的区域划分成若干个三角形,分别计算由各三角形组成的三棱柱体体积,然后求得该区域的土方量。本方法计算简便,尤其适应于地形复杂的场地。
In the earthwork calculation, the traditional grid method is greatly affected by the landform and the point, the calculation is complicated and the accuracy is not high. Through years of work practice, I applied Excel to the calculation of earthwork - the triangular micro element law. According to the three-dimensional coordinates of the existing topographic map or topographic point, the area to be calculated is divided into several triangles, and the volume of the triangular prism composed of each triangle is calculated separately. Then the earthwork volume of the region is obtained. The method is simple and convenient to calculate, especially suitable for complex terrain.