Research on Earthwork Calculation of Complex Shapes Foundation Pit Based on GIS
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摘要: 目前土方量计算有几种非常成熟的方法,但是它们各有相应的数据输入方法和一定的适用条件,各有优缺点。如何借鉴这些方法的优点,找出一种数据兼容更强、适用范围更广的方法来快速地计算土方量是工程中面临的一个问题。继承应用最广泛的格网法的原理,采用前沿的GIS技术,提出了基于GIS栅格数据的土方量计算方法,使方格网能够根据要求的精度随意切换,从而快速准确地计算出土方量,同时研究中讨论了方格大小对精度的影响。Abstract: There are several mature methods of earthwork calculations according to the former study. However, they have advantages and disadvantages due to different applicable conditions and input data types. It's a problem that how to learn the advantages of these methods and take a more data-compatible way to calculate earthwork project. Inheriting the most widely used method of grid principle and the advanced GIS technology, we proposed an earthwork volume calculation method based on GIS raster data. Through the method the grid can switch freely according to the required accuracy, the amount of earth can be quickly and accurately calculated. Also, this paper discussed the impacts of the grid size on earthwork calculation accuracy.
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Key words:
- earthwork calculation /
- GIS
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