摘要
四川省是我国水库数量最多的省份之一,目前已建成各类水库近7 000座,为四川的农田灌溉、防洪、发电、旅游等方面发挥了重要作用,极大的促进了国民经济的建设和发展。"5.12"汶川大地震对四川的水利工程造成了很大的灾害,全省大量的水库不同程度受损,其中部分水库出现高危和溃坝险情,灾区人民的生命财产受到极大威胁。通过调研分析,总结了四川省震损水库的基本情况。此次地震震损水库数量多,分布广,范围大,险情严重,其主要震损形式有大坝裂缝、坝体及坝基渗漏、坝坡滑塌、放水设施损坏等,针对379座高危以上险情震损水库的主要震害裂缝、渗漏、坝坡滑塌等进行了分析,为震损水库的整治和处理提供了科学依据。
Sichuan province is one of provinces which own a significant number of existed reservoirs in China,namely,a variety of 7000 reservoirs.These reservoirs play an important role in farmland irrigation,flood control,power generation and recreation in Sichuan and significantly accelerate national economy growth and development.However,May 12 Wenchuan Earthquake inflicted great damage to water resources projects in Sichuan and a large number of reservoirs were damaged in various degrees.Some reservoirs had dangerous conditions of high risk and dam failure,which greatly threatens lives and properties of peoples in disaster areas.In this paper,general conditions of damaged reservoirs in Sichuan are described.During the earthquake,a large number of reservoirs were damaged severely in an extensive area.The main seismic damages are cracks in dam,leakages through dam and dam foundation,dam slope slides,outlet facility damages and so on.Main cracks,leakages and dam slope slides due to seismic damages on 379 high risk reservoirs are analyzed to provide scientific basis for treatment of earthquake damaged reservoirs.
出处
《四川水力发电》
2009年第5期73-75,120,共4页
Sichuan Hydropower
基金
国家自然科学基金资助项目(编号:50879050)
