基于遗传算法的路基土石方数量估算方法

介绍了一种自动选择地面点的方法,通过该方法选择的地面点之间的距离是变化的,而连接这些所选地面点的模拟地面线也较好地吻合了实际地面线,因此利用这些地面点估算所得到的路基土石方数量结果将会比较精确。将模拟地面线和实际地面线之间的误差平方和的最小化作为该方法的目标函数,而将遗传算法作为寻找该方法目标函数最优解的工具。通过一个算例验证了该方法相对于传统方法的优越性。

Evaluation Method of Subgrade Earthwork Volumes Based on Genetic Algorithm

A variable-interval method was introduced which could automatically select the most suitable ground points along the longitudinal highway alignment with variable intervals between successive two ground points.The evaluation ground profile formed by connecting the selected ground points matches the fluctuation of the terrain very well.Therefore,the result of the total subgrade earthwork volume evaluation using cross sections at these selected locations is accurate.A genetic algorithm with a least squares objective function was used to locate the most suitable ground points.A numerical example was presented to illustrate the performance of the proposed method.