中小河流防洪特征水位与雨量预警阈值分析方法研究

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英文篇名：Analysis of Specific Water Level of Flood Control and Threshold Value of Rainfall Warning for Small-and Medium-sized Rivers 作者：胡余忠 ; 汪朝霞 ; 周斌 ; 江世启 英文作者：HU Yuzhong;WANG Zhaoxia;ZHOU Bin;JIANG Shiqi;Hydrology Bureau of Anhui Province;Anqing Hydrology and Water Resources Bureau of Anhui Province;Office of Shitai Flood Control and Drought Headquarters of Anhui Province; 关键词：山洪 ; 调查评价 ; 特征水位 ; 预警阈值 ; 石台 英文关键词：flash flood;;investigation and evaluation;;specific water level;;threshold value of rainfall warning;;Shitai 中文刊名：SWZZ 英文刊名：Journal of China Hydrology 机构：安徽省水文局;安庆水文水资源局;安徽省石台县防办; 出版日期：2019-02-25 出版单位：水文 年：2019 期：v.39;No.229 语种：中文; 页：SWZZ201901005 页数：6 CN：01 ISSN：11-1814/P 分类号：29-34

摘要

以新建的中小河流水文站点如何快速有效发挥减灾预警作用为切入点,采用山洪灾害调查评价的技术路线,以安徽省皖南山区石台县中心城区新建水文站点为例,调查了预警河段历史洪水信息,采集了沿河两岸居住地房屋基础高程,建立预警站点与影响人口的关联关系,并基此确定水文站点的特征水位以及基于现状防洪能力的雨量预警指标体系,确定警戒水位54.0m、保证水位55.3m。1h流域平均净雨强度70mm/hr,或6h面平均雨量110mm为致灾临界雨量阈值。
        In order to address how the newly-built hydrometry stations of small-and medium-sized rivers can be effectively used for flood warning, this paper investigated the historical flood information of warning river reach, measured the elevation of riverside residences, and then estab-lished the relationship between the warning stations and socioeconomic factors of the river reach based on the technical strategy of investiga-tion and evaluation of flash floods. The technical system was then proposed to determine the specific water levels of hydrometry stations and warn-ing threshold values on the basis of current flood control capability.

引文

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