山区公路与货运索道联合路径规划方法

Path planning for material transportation by combining mountain road and freight ropeway

输电线路施工物料运输路径规划是地形复杂地区输电线路架设的基础工作,该路径一般由公路运输路径和索道运输路径组成。基于数字高程模型和Dijkstra算法提出了一种索道-公路联合物料运输路径规划算法。通过基于抛物线的空载索道运输路径快速搜索方法,实现了基于悬链线的负载索道运输路径优化,在此基础上采用Dijkstra算法实现最佳公路运输路径搜索,从而实现公路运输和索道运输路径的协同规划。将该算法应用到某待建特高压输电线路铁塔的物料运输路径规划工程问题中,验证表明该索道-公路联合路径规划有效缩短了输电线路物料运输路径设计周期,提高了施工物料运输的效率。

Path planning for material transportation is the fundamental work for constructing power transmission line in complex terrain areas.Such paths generally comprise road and ropeway transportation paths.Based on the digital elevation model and Dijkstra algorithm,this study proposed a combined material transportation path planning algorithm for road and ropeway.Using the fast search method of no-load ropeway transportation path based on parabola,a load ropeway transportation path optimization based on catenary was implemented.Then,the road transportation path was optimally searched using Dijkstra algorithm,and the coordinated planning of road and ropeway transportation paths was conducted.The proposed algorithm was applied to the material transportation path planning of an ultra-high voltagetransmission line′s towers.Results showed that the combined ropeway and road transportation paths can effectively shorten the design period of material transportation path and improve the efficiency of construction material transportation.