中国地质灾害与防治学报2024，Vol.35Issue(4)：85-92,8.DOI:10.16031/j.cnki.issn.1003-8035.202212017
有效降雨量在辽宁省内公路水毁风险评价中的应用
Application of effective rainfall in assessing water damage risk to highways in Liaoning Province
摘要
Abstract
This paper utilizes data on the records of damage to expressways and main roads caused by precipitation in Liaoning Province from 2017 to 2021.It analyzes the temporal and spatial characteristics of damage accidents,calculates the effective rainfall before the occurrence of accidents,and establishes a probability fitting model for road water damage.The results show that precipitation-induced road damage events in Liaoning Province generally occur from May to October,with a peak in July and August.The occurrence of road water damage follows a pattern of gradually delaying from northwest to southeast,and the number of accidents is highly correlated with precipitation.The eastern and western parts of Liaoning are high-incidence areas,with Dandong,Chaoyang,Huludao,and Benxi being the high-incidence areas within the province.Among various methods compared,the fitting effect of the road water damage probability conforms to the Gaussian distribution probability density function.The critical rainfall threshold for disaster in the eastern and southern parts of Liaoning is higher than that in the central and northern parts.Under the same effective rainfall conditions,the risk of road water damage in plain areas is higher than in mountainous and hilly areas.The road water damage situation during a flooding process in Liaoning in 2022 is used for verification,indicating a strong role in flood control guidance.关键词
公路水毁/致灾雨量/风险评价/辽宁省Key words
road water damage/critical rainfall/risk assessment/Liaoning Province分类
交通工程引用本文复制引用
林毅,马强,张凯,李岚,李嘉宁,陆井龙,肇毓..有效降雨量在辽宁省内公路水毁风险评价中的应用[J].中国地质灾害与防治学报,2024,35(4):85-92,8.基金项目
辽宁省气象服务中心山洪地质灾害防治气象保障工程2020年建设项目(公路气象灾害风险评估及服务系统建设) （公路气象灾害风险评估及服务系统建设）
2021年辽宁省地方标准《公路地质灾害气象风险预警等级评估》 （）
