A Study on Computing Pit Excavation Volume by Terrain Surface Approximation

J. Ocean Eng. Technol. 2002;16(6):37-43.

지형곡면해석에 의한 토공량 계산에 관한 연구

문두열,정범석

동의대학교 토목공학과,동의대학교 토목공학과

Keywords: Pit Excavation Volume, Terrain Surface, Seashore Reclamation, Natural Boundary Conditions, Accuracy

핵심용어: 토공량, 지형곡면, 해안매립, 자연경계조건, 정확도

Abstract

The calculation of earthwork plays a major role in the plan or design phase of many civil engineering projects, such as seashore reclamation; and thus, it has become very important to improve upon its accuracy. There have been common drawbacks to earlier methods of ground profiling, such as dialing with sharp corners or the grid points of any tow straight lines. In this paper, we prepose an algorithm for finding a terrain surface using the natural boundary conditions and the both direction spline method, which interpolates the given three-dimensional data by using spline. As a result of this study, the algorithm of the proposed two methods to estimate pit excavation volume should provide a better accuracy than Spot height, Chambers, Chen, or Lin method. Also, the mathematical model mentioned offers maximum accuracy in estimating the volume of a pit excavation.