周边缝在水电工程，面板堆石坝中是指：面板与趾板或趾墙间的接缝；在拱坝中是指设置于拱坝与河床及岸边混凝土垫座之间的接触缝。
周边缝错动位移进一步加大。
The shear displacement of perimeter joints is also enlarged.
同时，对面板的竖缝和周边缝也可进行详细模拟。
In addition, the vertical joint and peripheral joint of the concrete face slab are also simulated.
分析周边缝三向变位特征，阐述了周边缝的变形机理和破坏特征，拟合三向受力变位关系式。
The 3-d displacement feature of peripheral joint is analyzed, based on which the deformation mechanism and failure characteristics are expatiated for fitting the 3-d loading displacement relation.
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