研究目的:铁路纵断面设计是一项复杂的系统工作,人工设计效率低,易出差错。研究掌握铁路纵断面自动设计与优化方法,可以提高纵断面设计效率和质量,为铁路线路平纵断面方案的优化调整、纵断面技术标准的确定提供快速的参考和指导,为平纵横联动设计奠定坚实的基础。
研究结论:应用实例表明:(1)采用坡度模拟、多种约束条件处理的方法进行铁路纵断面自动设计,可以快速获得具有较高价值的纵断面初始方案,为平纵断面方案设计或优化提供快速参考;(2)在自动设计的成果基础上,基于差异演化算法进行纵断面自动优化,可以提高优化速度和优化效果;(3)自动设计、自动优化和自动规范检查,可以显著提高纵断面的设计效率和质量。
Research purposes:The railway profile design is a complexly systematical work and it's inefficient and easy to make mistakes if the manual design is made. To study and master the methods for autodesign and optimization of railway profile can improve the profile design efficiency and quality,provide the quick reference and guidance to optimizing and adjusting the railway profile scheme and lay a solid foundation for the linkage design of railway plane,vertical section and transect.
Research conclusions:The applicable examples show that the autodesign of railway profile by making the grade simulation and many consraints processings can quickly find the initially valuable profile scheme and it can provide quick reference to the railway profile design and optimization. On the basis of the achievement of the autodesign,the differential evolution Algorithm一based optimization of the railway profile can improve optimization speed and effect. The efficiency and quality of railway profile design can be much improved by adopting the autodesign,automatic optimization and automatically normal checking.