摘要
针对堆石坝工程中施工道路因地形陡峭、坡度受限导致选线不佳的问题,本文提出了一种基于区间离散高程调整策略的场内施工道路选线优化模型。该模型以最小成本路径分析(LCPA)为理论框架,综合路径长度、高程调整和转向控制等关键因素,采用Dijkstra算法实现高效求解。通过典型算例对比分析表明,相较于现有选线方法,本文模型可使施工道路长度缩短17.33%,综合成本降低16.17%,有效提升选线方案的经济性和合理性。此外,以黄河上游茨哈峡高面板堆石坝工程为实际应用案例,进一步开展模型有效性验证。结果显示,该模型生成的施工路径在空间走向与设计人员经多轮优化调整后的设计道路基本吻合,为复杂地形条件下施工道路选线提供了新的技术手段。
This paper constructs an optimization model for selecting on-site haul roads during rockfill dam construction based on a strategy of interval-discretized elevation adjustment,to address the issue of suboptimal haul road routing,which is frequently exacerbated by steep terrain and slope constraints.This model,rooted in the theoretical framework of Least-Cost Path Analysis(LCPA),incorporates critical factors-such as path length,elevation modification,and turning constraints-while leveraging the Dijkstra's algorithm for its efficient calculations of a solution.A comparative case study reveals that in comparison to conventional methods,it reduces the haul road length by 17.33%and the overall cost by 16.17%,improving significantly the cost-effectiveness and rationality of the routing scheme,and thereby validating its performance.And its applicability is further exemplified through a case study of the Cihaxia high concrete-face rockfill dam on the upper Yellow River mainstream.The method obtains a route of construction that agrees closely with the engineer-designed path that was refined using multiple iterations,and thus it would be an innovative solution to the planning of haul road in complex terrains.
作者
张鹏程
徐超杰
王仁超
ZHANG Pengcheng;XU Chaojie;WANG Renchao(State Key Lab of Hydraulic Engineering Intelligent Construction and Operation,Tianjin University,Tianjin 300350,China)
出处
《水力发电学报》
北大核心
2025年第12期100-112,共13页
Journal of Hydroelectric Engineering
基金
云南省重点研发计划(202303AA080011)。
关键词
水利工程施工
场内道路
线路优化
LCPA
挖填作业
地形约束
hydraulic engineering construction
haul road
alignment optimization
LCPA
cut-and-fill operation
terrain constraint
