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
[1]胡余忠,徐业平,叶成林,等.山洪灾害调查评价及预警关键技术研究与应用[R].安徽省水文局,安徽省防汛抗旱指挥部办公室, 2016.(HU Yuzhong, XU Yeping, YE Chenglin, et al. Mountain flooddisaster investigation and evaluation and key technology research[R]. Hydrology Bureau of Anhui Province, Office of AnhuiProvince Flood Control and Drought Headquarters,2016.(in Chi-nese))
[2] SL 196-2015,水文调查规范[S].(SL 196-2015, Code for Hydro-logical Investigation[S].(in Chinese))
[3]胡余忠.山区非静态水体水位与淹没影响人口关系评价方法:ZL2014 1 0803764.4[P].2016.6.29(HU Yuzhong. Assessment method ofrelationship of non-static water level and inundated population:China,ZL 2014 1 0803764.4[P].2016.6.29(in Chinese))
[4]胡余忠.山洪灾害影响评价外业调查核心技术问答[J].中国防汛抗旱, 2015,2.(HU Yuzhong. Questions and answers of core tech-nologies about field investigation on mountain flood disaster impactassessment[J]. China Flood and Drought Management, 2015,2.(inChinese))
[5]胡余忠,姚学斌,章彩霞,等.山洪影响调查评价与预警体系建设方法研究———以昌江芦溪河段为例[J].水文, 2015,(3).(HUYuzhong, YAO Xuebin, ZHANG Caixia, et al. Investigation andevaluation of flash flood effect and research on construction of earlywarning system:take Luxi reach of Chang River as a case[J]. Jour-nal of China Hydrology, 2015,(3).(in Chinese))
[6]安徽省水利勘测设计院.安徽省山丘区设计洪水计算办法(简称“84”办法)[R]. 1984.(Anhui Water Investigation and SurveyingInstitute. Design flood calculation method in hilly region of AnhuiProvince[R].1984.(in Chinese))
[7]安徽省水文总站.安徽省水文手册[R]. 1975.(Hydrology Bureau ofAnhui Province. Handbook of Anhui hydrology[R].1975.(in Chi-nese))
[8]黄山水文水资源局.黄山水文手册[R]. 2015.(Hydrology and WaterResources Bureau of Huangshan City. Handbook of Huangshan hy-drology[R].1975.(in Chinese))
[9]胡余忠.山洪影响评价与预警阈值分析关键技术问答[J].中国防汛抗旱, 2016,2.(HU Yuzhong. Questions and answers of key tech-nologies about threshold value of warning analysis on mountainflood impact evaluation[J]. China Flood and Drought Management,2016,2.(in Chinese))