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2015年6月17日,皖河流域支流长河发生仅次于1969年,重现期约50年一遇的历史第二大洪水,造成了重大的洪涝灾害。本文通过对暴雨影响较大的岳西县店前镇和冶溪镇开展洪水调查评价,梳理两个典型村民组的调查要素,推算调查流量,分析洪水风险和阈值,为该流域暴雨洪水灾害及预防提供科学依据。
On June 17, 2015, the tributary stream of the Anhui River tributary took place second only to the second largest flood hit in 1969, with a recurrence period of about 50 years, causing major flood disasters. This paper investigates and evaluates the floods in Dianqian Town and Yexi Town, Yuexi County, which has a great influence on the heavy rains. By combing the survey elements of two typical villager groups, the investigation flow is calculated and the flood risks and thresholds are analyzed. Prevention provides a scientific basis.