基于图像处理的铁路路基设计土石方计算方法

Earthwork Calculation Method for Railway Subgrade Design Based on Image Processing

摘要: 本文讨论了铁路路基设计中土石方计算的挑战以及现有方法的局限性，并提出了一种基于图像处理的新型计算方法，该方法将地质剖面图中地质界线进行一定的修正，再将其按一定比例系数放大并绘制到特定位图中，进而利用图像处理技术快速识别出各地层区域轮廓，并提取出每个地层的区域边界范围，最后通过预定义的填挖设计线构造填挖区域，利用区域之间的布尔运算，实现了铁路路基设计中断面填挖土石方的分类计算，极大提高了计算效率和准确性。

Abstract: This paper discusses the challenges of earth and rock calculation in railway subgrade design and the limitations of existing methods, and proposes a new calculation method based on image processing, which corrects the geological boundary in geological profile to a certain extent, amplifies it according to a certain scale factor and draws it into a specific bitmap, and then uses image processing technology to quickly identify the contours of various layers. The boundary range of each stratum is extracted, and the filling area is constructed by the pre-defined cut-fill design line, and the classification calculation of the section filling and excavating earth and rock in the railway subgrade design is realized by using the Boolean operation between the areas, which greatly improves the calculation efficiency and accuracy.