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一、前言目前国内外利用当地材料修建高土石坝的日益增多,为解决防渗问题,有的工程在几十米厚的基础覆盖层中建造一道或者二道混凝土防渗墙;有的重要围堰工程直接在堰体内修建混凝土防渗心墙。本计算中的围堰,就是具有直接穿过堰体和直达基岩的混凝土防渗心墙的土石围堰。在围堰中建造混凝土防渗墙。它不同于一般基础混凝土防渗墙,基础混凝土防渗墙多数在较紧
I. Preface At present, the use of local materials to build high earth-rock dams at home and abroad is increasing day by day. In order to solve the seepage prevention problems, some projects construct one or two concrete cutoff walls in the base covering of several tens of meters of thickness. Weir project directly in the weir to build concrete impervious wall. The cofferdam in this calculation is the earth-rock cofferdam with a concrete impervious core wall passing directly through the weir and the bedrock. Construction of concrete cutoff walls in cofferdam. It is different from the general foundation of concrete cutoff walls, foundation concrete cutoff walls are mostly tight