Volume calculation of irregular object using multiple software packages

الملخص EN

Volume calculation is needed in many civil engineering projects.

Recently, several software packages are used in volume calculation such as Civil3D, Surfer, and GIS softwares.

The main objective of the presented work is to explain how volumes of cut and fill using these software packages can be calculated.

Moreover, methods of interpolation using different software packages are investigated.

The test site used in this research is located at Ain El Sokhna- Zafarana Road, Red Sea, Egypt with surface area around 126, 000m2.

Methods of the data gridding and precision of volume calculation based on Civil3D, Surfer, and ArcMap software packages are studied.

Distribution and intensity of points are important factors in modeling earth surfaces.

Interpolation methods employing different mathematical models are used to obtain 3D models of terrain surfaces.

The 3D surface and volume are calculated by using 12 different interpolation methods.

The accuracy of the volume calculation depends on the appropriateness of the interpolation method used in creating 3D models.

The calculated net volumes by Inverse Distance, Modified Shepard's Method, Nearest Neighbor, Kriging, and Triangulation with Linear Interpolation methods yielded closed results compared with other methods.

In conclusion, the accuracy of volume determination of irregular bodies is dependent on the interpolation of modeling and computational method capable of approximating the irregular body and thus represents its actual, real shape.