Triangular meshes method for land leveling earthwork calculation

The land area was divided into several triangular meshes,and a polyhedral model for earthwork calculation,which adapts to the actual topographic condition,and can preclude calculation error of the conventional square mesh method was developed.Calculation results of a practical project show that the variances of earthwork volume calculated with the square mesh method and the triangular mesh method are 36.84 m3 and 0.01 m3,respectively.Finally,it is pointed out that the application of a visualized calculation program compiled in this paper could improve the efficiency and accuracy of earthwork calculation.