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青藏高速公路危险物品运输环境风险评价及应急对策
郑先俊1, 尹静2, 陈瑞华2, 林涛2, 李生龙2, 宋龙飞2
1.西安工业大学, 陕西 西安 710021;2.中交第一公路勘察设计研究院有限公司, 陕西 西安 710065
摘要:
[目的]分析青藏高速公路水环境敏感路段危险物品运输环境风险,制定相应的预防和应急对策。[方法]在识别青藏高速公路沿线水环境敏感路段基础上,运用概率估算法预测危险物品运输环境风险。[结果]青藏高速公路水环境敏感路段长477.48 km,占路线全长的42.77%,其中强敏感区路段89.52 km,中敏感区路段221.49 km,弱敏感区路段166.47 km;青藏高速公路在预测年内危险物品运输车辆的交通事故概率较小,其平均发生概率为0.162 5~1.176 0次/a,危险物品运输事故环境污染风险在不同敏感路段排序为:中敏感区路段 > 强敏感区路段 > 一般路段 > 弱敏感区路段;通过完善公路污染防治与应急措施以及对危险物品运输车辆的管理与监控,能有效地降低危险物品运输事故造成的环境污染风险。[结论]青藏高速公路水环境敏感路段占研究路段比重大,在危险物品交通运输过程中采取污染防止措施和应急措施可以有效降低青藏高速公路危险物品运输环境风险。
关键词:  青藏高速公路  敏感路段  危险物品  风险评价
DOI:10.13961/j.cnki.stbctb.2019.03.044
分类号:X5
基金项目:中交第一公路勘察设计研究院有限公司科技创新基金项目“高寒高海拔高速公路生态防护及植物培养关键技术研究与示范”(KCJJ201714)
Environment Risk Assessment and Emergency Countermeasures of Dangerous Goods Transporting on Qinghai-Tibet Expressway
Zheng Xianjun1, Yin Jing2, Chen Ruihua2, Lin Tao2, Li Shenglong2, Song Longfei2
1.Xi'an Technological University, Xi'an, Shaanxi 710021, China;2.CCCC First Highway Consultants Co. Ltd., Xi'an, Shaanxi 710065, China
Abstract:
[Objective] The environmental risk of dangerous goods transportation in sensitive water environment section of the Qinghai-Tibet expressway was analyzed in order to make the corresponding prevention and the emergency countermeasures.[Methods] Based on the identification of the water environment sensitive section along Qinghai-Tibet expressway, the environment risk of the dangerous goods transportation was predicted by probability estimation method.[Results] The length of the water environment sensitive section was 477.48 km, accounting for 42.77% of the total length of the Qinghai-Tibet expressway. Among them, the high sensitive section was 89.52 km, the medium sensitive section was 221.49 km and the low sensitive section was 166.47 km. The traffic accident probability of dangerous goods transportation vehicles on Qinghai-Tibet expressway in the forecast year was low, with the average probability of 0.162 5~1.176 0 t/a. The risk of environmental pollution in dangerous goods transportation accidents could be ranked as:medium sensitive section > high sensitive section > general section > low sensitive section. By improving the road pollution prevention and the emergency measures as well as the management and monitoring of the dangerous goods transport vehicles, the environmental pollution risk caused by the dangerous goods transport accidents could be effectively reduced.[Conclusion] The water environment sensitive section of Qinghai-Tibet expressway accounts for a major part of the studied road. Pollution prevention measures and emergency measures can effectively reduce the environmental risks of dangerous goods transportation on Qinghai-Tibet expressway.
Key words:  Qinghai-Tibet expressway  sensitive section  dangerous goods  risk assessment