土方量精算软件系统的设计与开发

Design and Development of an Actuarial System for Measuring the Earthwork Volume

研究目的：探求一种更精确的土方量计算方法，并设计开发相应的软件系统，以有效地减少土地开发整理工程中投资与预算的偏差。研究方法：采用两期观测数据相互内插点位高程，构建复杂形体的三维模型的土方量计算方法，以此来计算复杂形体的体积。研究结果：该模型计算原理简单且精度较高。研究结论：研究构建的模型系统克服了已有计算方法不精确的缺点，可以用于土地开发整理工程，并在其他工程及施工中也具有一定的应用价值。

The purpose of the study is to propose a scientific method for measuring the earthwork volume and further develop a software system aiming to effectively minimize the deviation between the investment and budget of a land consolidation project. Method used was the three-dimensional model with observations in two periods. The model adopted the mutual insertion of the elevation in two periods and established the triangle net based on the superposition of the two periods. The results indicated that the proposed principle of volume measurement is simple but with high precision. The paper concluded that the new designed software system were faster, more convenient, accuracy and reliable than the traditional ones. It also can be applied in other projects rather than merely the land development and consolidation projects.