雾流降雨潜在危害程度及工程安全与局域环境影响评价  

Research on comprehensive evaluations for potential risk and impact on safety of engineering and local environment caused by atomization rainfall

作　　者：刘士和[1] 冉青松[1] 范敏[1] 

机构地区：[1]武汉大学水利水电学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2013年第6期686-690,共5页Engineering Journal of Wuhan University

基　　金：水利部公益性行业科技专项经费(编号:201101005)

摘　　要：雾化水流是水利枢纽高速泄流时所形成的一种非自然降雨与水雾弥漫现象,往往在局部区域形成高强度降雨与浓雾,其对高水头、大流量、复杂地质条件的水利枢纽的安全运行构成潜在威胁.在水电站工程项目的各个阶段,需要对泄洪雾化的影响进行不同程度的评价.针对水电站规划期内基础资料往往不足的现实,采用层次分析法,充分考虑工程实际经验,对雾流降雨潜在危害程度评价方法进行了探讨并利用香客岩水电站实测资料进行了验证计算.同时针对在工程论证及实施后期基础资料已非常丰富,足以对泄洪雾化影响进行综合评价的情况,就泄洪雾化对工程安全与局域环境的综合影响,建立了完整的指标体系,并提出了相应的评价方法.Atomization flow is a kind of unnatural rainfall and suspended mist, which brings a potential threat to the safe running of the hydraulic proiects with characteristics of high water head, great discharge and complicated topography. For different period of the project, we need to make evaluations with differ- ent degrees. During the planning period, there is short of elemental information to do precision simulation. In this article we consider the practical experiences and propose a method for comprehensively evaluating potential risk caused by atomization rainfall based on the analytic hierarchy process （AHP）. For the last period of the project, when there is enough information to do comprehensive evaluation, we also propose a method to evaluate the impact of the atomization flow on safety of engineering and local environment.

关 键 词：雾流降雨 潜在危害程度 工程安全 局域环境 综合评价 层次分析法 

分 类 号：O35[理学—流体力学]