土石方调配复杂网络建模与系统优化研究

System Optimization and Modeling of Complex Networks for Earth-Rock Work Allocation

在深入了解实际工程中土石方调配方法、特点的基础上,分析了现有调配模型中存在的问题和不足,并从物理过程模拟的角度,对调配中由开挖、填筑、中转、弃渣、料场开采、道路运输等组成的复杂网络进行抽象和简化,将其转化成为多组具有统一属性,并按一定规则排列和相互联系的"对象-道路-对象"模型,并采用实时参数检测和碰撞的思想,设立了相应的模拟控制方法,其大大简化了传统模型中复杂的建模和分析过程。在基本模型的基础上,运用反馈调节和循环优化的方法,建立了可实现整体优化和局部适应的土石方调配动态仿真模型。最后结合工程实例分析,印证了模型的可行性及优越性。

Based on the in-depth knowledge of earth-rock work allocation methods and characteristics in practical projects,the authors analyze the problems and defects in the existing allocation models,and from the viewpoint of physical process simulation,the complicated network model constituted by excavation,filling,transshipment,discarding dross,mining,road-transport,etc.has been abstracted and simplified.Then the model has been converted into several groups of basic models named ＂Object-Road-Object＂,which have unified attributes and permutation and interrelation according to certain rules.By using realtime parameter detection,the corresponding simulation control methods have been set up.These methods greatly simplify the modeling and analyzing process of the traditional models.Through using feedback control and loop optimization methods,a dynamic simulation model of earth-rock work allocation which meets the requirements of global optimization and local adaptation has been established.In this paper,at last,through the analysis on the example of real project,the feasibility and superiority of the model are confirmed.