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危险化学品运输事故泄露产生的水环境安全风险是集中式生活饮用水水源地及水源保护区、Ⅱ类及以上地表水体等水环境敏感区高速公路运营期的主要环境风险。基于防范水环境敏感区危险化学品运输环境风险的目的,针对高速公路危险化学品运输事故环境风险源控制系统的构建问题,在分析高速公路利于防范危险化学品运输事故环境风险的特点的基础上,提出了基于主动预防与被动防护相结合的危险化学品运输事故环境风险源控制系统。该系统由风险源信息交换子系统、风险源事故预防子系统以及风险源事故防护子系统等构成,通过高速公路监控通讯系统将上述子系统有机连接;环境风险源信息交换子系统由区域危险化学品运输安全监管系统(平台)和高速公路的监控通讯系统组成,其主要功能是实现高速公路与区域危险化学品运输安全监管系统(平台)之间的危险化学品运输信息共享;环境风险源事故预防子系统由主体工程构筑物和交通安全设施组成,其主要功能提高危险化学品运输车辆的行车安全性;环境风险源事故防护子系统由事故径流水收集设施和事故径流水蓄纳设施组成,其功能是对事故径流水进行应急收集和临时储存。
The water environment safety risk caused by the leakage of hazardous chemical accidents is the main environmental risk during the operation period of centralized water drinking water source and water source protection areas and Class II and above surface water bodies and other water environment sensitive areas freeways. Based on the purpose of preventing environmental risk of transporting hazardous chemicals in water-sensitive areas, aiming at the construction of environmental risk source control system of hazardous chemicals transport accidents in expressways, on the basis of analyzing the characteristics that freeway is conducive to preventing environmental risks of dangerous chemicals in transportation accidents, , Proposed an environmental risk source control system based on the combination of active prevention and passive protection in the transport accident of hazardous chemicals. The system consists of a risk information exchange subsystem, a risk source accident prevention subsystem and a risk source protection subsystem. The subsystem is connected through an expressway monitoring and communication system. The environmental risk source information exchange subsystem is composed of a regional hazard chemistry Product safety supervision system (platform) and expressway monitoring and communication system, whose main function is to realize the information sharing of hazardous chemicals transportation between the expressway and regional hazardous chemicals safety supervision system (platform); environmental risk source accident The prevention subsystem consists of the main engineering structure and the traffic safety facilities, and its main functions are to improve the driving safety of the hazardous chemicals transport vehicles. The environmental risk accident prevention subsystem consists of an accident runoff collection facility and an accident runoff storage facility. The function is emergency collection and temporary storage of accident runoff water.