公路水毁路段灾害评估方法研究

Research on Hazard Assessment Method of Highway Flood Damage

为解决山区公路水毁路段灾害快速评估难题,以甘肃省南部片区公路水毁为工程背景,通过查阅公路相关规范、标准、已有工程实例,制定了路基路面、桥梁、隧道水毁工点定性描述、定量描述标准;结合其经济损失,拟定了单个工点水毁评价分析模型;并在单个水毁工点评估基础上,针对水毁公路等级、水毁密度、灾害类别,拟定了相关系数,初步提出路段评价分析模型,通过大量水毁路段数据,不断测算、修正、优化模型,提出了更为实用的路段评价分析模型,并将该模型应用于已发生的典型工程案例。分析结果表明:该水毁路段灾害评估方法简单易行、可操作性强,可为公路应急抢险和恢复重建提供决策依据,可供类似公路路段水毁评估参考。

In order to solve the problem of rapid evaluation on mountainous highway flood damage section,this paper carefully consulted related road codes and standards,combined with engineering examples,formulated qualitative and quantitative descriptions of roadbed roads,bridges,tunnels,and their economic losses,formulated a single-site water damage assessment analysis model,based on the engineering background of road flood damage in southern part of Gansu Province.Based on the assessment of a single water-damage site,correlation coefficients was formulated for highway grade,water damage density,and disaster category,and the road section assessment analysis model was put forward.Through a large amount of water-damaged section data,continuous calculations,corrections and optimization were made to fit a more practical section assessment analysis model which was verified through typical engineering cases.The results has shown that the assessment method is simple and easy to implement and is workable It can provide a decision-making basis for highway emergency rescue and restoration and reconstruction,and provide a reference for similar water damage projects.