Summary

Finite element calculations on the seepage around and underneath dams and on the stresses and deformations in the foundation rock are explained. For an approximately 100 m high arch dam, it was seen that the anisotropy of the rock revealed a large influence upon the deformations at the foundation level and within the foundation rock which thus influence the loading of the wall. The anisotropy of the foundation rock also has a considerable influence upon the design of a 60 m high gravity dam. Finally a pre-stress anchoring is proven to be necessary for an ~ 21 m high powerhouse founded upon clay slate and it can be shown that the results of finite element calculations can also be a suitable basis here for the design.

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