抄録
In order to discuss effects of possible measures for enhancing the stability of a concrete-faced rock-fill dam (CFRD), a series of model experiments are conducted. The measures discussed herein include the followings: firstly, some sheets of geo-textile are sandwiched horizontally in the upper interior of a dam model, and secondly, a face slab on a model's upstream slope is extended to cover up the upper 1/3 part of its downstream slope. The extended part of the face slab is then fastened to the underlying granular slope with steel rods arranged side by side in squares. Comparing these measures with those tried out in the authors' previous experiments, a rational combination, which may contribute to saving a large amount of earthwork, is discussed.
