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混凝土面板堆石坝是我省近几年来采用较多的一种坝型。它是由混凝土面板和堆石体组成。堆石体填筑一般分为4个区,Ⅰ区为垫层区,Ⅱ区为过渡区,Ⅲ区为主堆石区,主堆石区是垫层、过渡层的支承体,即堆石坝的主体,Ⅳ区为下游堆石区。混凝土面板倚靠在堆石体上。堆石体的沉降、位移量的大小直接影响大坝的安全运行,所以设计者对大坝堆石体各区的孔隙率分别提出不同的要求,以控制填筑质量。
Concrete faced rockfill dam is used in our province in recent years, a type of dam. It is composed of concrete panels and rockfill body. Rockfill body filling is generally divided into four areas, Ⅰ area for the cushion zone, Ⅱ area for the transition zone, Ⅲ area for the main rockfill area, the main rockfill zone is the cushion, the support layer of the transition layer, that is, rockfill The main dam, Ⅳ area for the downstream rockfill area. Concrete panels lean on the rockfill body. The settlement and displacement of the rockfill body have a direct impact on the safe operation of the dam. Therefore, the designers put forward different requirements on the porosity of each area of the rockfill dam to control the filling quality.