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混凝土重力坝在施工过程中，为了散热和防止混凝土收缩变形造成坝体裂缝等，而分块浇注。然后，将每抉之间留的缝隙迸行灌浆，使各块粘接起来。本文用微分算子离散化的方法［１］，分析了坝体在水压，自重作用下，当有一条竖缝没有灌浆，或者灌浆效果不好（只是起到了填充作用而没能将各块粘接起来）时，对坝体位移和应力的影响。 本文提出的这个裂缝问题的处理方法原则上也适用于弹性体接触问题［４］。
Concrete gravity dam in the construction process, in order to heat and prevent concrete shrinkage caused by cracks in the dam body, while the block pouring. Then, each gap between the gap to be grouted, so that each block bonding. In this paper, using discretization of differential operator [1], the effect of hydraulic pressure and self-weight of a dam is analyzed. When a vertical seam is not grouted, or the grouting effect is not good (it only plays a role of filling, Bonding), the impact on the displacement and stress of the dam. In this paper, this method of dealing with the problem of cracks in principle also applies to the problem of elastomer contact [4].