道路平面线形优化方法的研究及实现

Research and realization of highway plane alignment optimization

将遗传算法应用于道路的平面线形优化设计,在一个可行域中自动搜索到一个最优或较优解,实现了全局寻优的目的。详细介绍了线路平面优化模型的建立,平面位置变动的具体原理,以及运用遗传算法优化线路平面位置的具体实现过程。研究表明,遗传算法运用于道路平面线形的优化设计是可行和有效的,能够实现全局寻优的目的,具有广阔的推广应用前景。采用动力有限元方法,研讨了基于FWD荷载作用下的水泥混凝土板下基础脱空与接缝传荷间的相互作用机理,以了解不同脱空尺寸和不同传荷能力对面板受力和路表各传感器弯沉盆曲线形状及弯沉盆参数的影响,为有效评定水泥混凝土路面地基脱空提供理论依据和参考。

This paper applies genetic algorithms to highway plane alignment optimization design. The program based on genetic algorithms is capable of searching the optimal solution in a feasible zone and entire solution space. This paper introduces in detail the formation of highway plane alignment optimization model, the principle of plane position variation and the process of highway plane optimization based on genetic algorithms. This application shows that the method is effective and feasible to highway plane optimization design and is able to search the entire space to find the global optimal solution：the application of the algorithm has a wide prospect for its enormous functions.