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一、工程概况宁波市白溪水库位于宁海县境内西南部最大的溪流白溪流域干流的中游,流域面积254km~2,多年平均径流量2.81亿m~3,水库呈河谷形,库岸岩体坚硬致密、透水性微弱,库区山高坡陡,部分岩石裸露,地表蓄水能力差,集流迅速。白溪流域属亚热带季风气候地区,地处台风活动区,是浙江省暴雨中心之一。白溪大洪水多系台风暴雨形成,一般发生在5～10月,以7～
I. Project Overview Ningbo Baixi Reservoir is located in the middle reaches of the mainstream of Baixi Basin, the largest stream in southwestern Ninghai County. The drainage area is 254km ~ 2, and the annual average runoff is 281 million m ~ 3. The reservoir is in the shape of river valley, Hard and dense, weak permeability, the reservoir area steep slope, some bare rock, poor surface water storage, rapid collection. Baixi Basin is a subtropical monsoon climate zone, located in the typhoon activity area, is one of the centers of Zhejiang Province rainstorm. Most floods in the Baihe River formed typhoon rainstorms, which usually occurred from May to October to 7 ~