摘要
基于某高速公路环境风险评价实例,对高速公路水环境风险评价方法进行了探讨。认为目前在公路交通危险品运输对地表河流的风险评价中,采用的风险概率计算模型应增加交通事故中的泄漏概率项;危险品的泄漏速率计算采用非稳态孔口出流计算方法比稳态孔口出流计算方法更符合客观实际。采用卷积分模型成功预测计算了危险品泄漏后河流中污染物浓度的分布。
Based on a risk assessment on a highway construction project, the methods of risk assessment for danger goods transportation on highway are discussed. It is proposed that the risk probability model that has been used in surface water risk assessment for dangerous chemical transportation by highway should be added an item of leakage probability. For the calculation of leaking rate of dangerous chemical, the non-stable mouth discharge method is more reasonable than the stable mouth method. Rolling integral model is used successfully in predicting the distribution of pollutant concentrations along a river at different time after an accident of danger leakage. 1 tab, 1 fig, 6 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第3期84-86,共3页
Journal of Chang’an University(Natural Science Edition)
关键词
交通工程
公路建设项目
环境风险评价
风险概率
水环境
traffic engineering
highway construction project
environmental risk assessment
risk probability
water environment
作者简介
杨云峰（1963-），男，山西运城人，博士研究生．
