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2012年7月27日,石羊河流域古浪县、天祝县境内遭遇局地雷阵雨,暴雨中心发生洪水,造成天祝县安远镇马家台村至古浪县黑松驿镇青土坡村一带受灾严重,上游的暴雨区出现多处洪涝灾害及崩山、滑坡、泥石流,危及当地人民的生命财产安全。经当地政府及有关部门尽力抢救,虽挽回部分经济损失,但重灾区的工农业生产仍遭到严重的损害。为吸取教训,现对“7·27”暴雨洪水成因进行分析,以便了解区域内暴雨洪水的变化特性,采取有效措施,防患于未然。本文分析了本次暴雨的特性和成因,并提出了中小河流暴雨洪水灾害的防治对策。
July 27, 2012, Gulang County, Tianzhu County, Shiyang River Basin suffered a regional mine showers, floods occurred at the center of the storm, Tianzhu Anyuan town Majia Tai Village to Gulang County Heisong Yi Green town slope The village suffered heavy disasters. There were many flood disasters and landslides and mudslides in the heavy rainstorms in the upper reaches, endangering the lives and property of the local people. After the local government and relevant departments tried their best to rescue them, although some of the economic losses were recovered, the industrial and agricultural production in the hardest hit areas was still seriously damaged. In order to learn the lesson, the cause of the “July 27” storm flood is analyzed to understand the characteristics of the storm flood in the region and take effective measures to prevent it. This paper analyzes the characteristics and causes of this rainstorm, and puts forward some countermeasures for the prevention and control of rainstorms and floods in small and medium-sized rivers.