Abstract
In order to grasp the effect of faults to the stability of dam foundation, gravity dam modeling test machine has been developed. Using this apparatus, some tests are carried out, namely no-fault foundation model and one-fault foundation models. In the case of one-fault foundation models, fault is located in upstream edge, center and downstream edge of the dam model. Based on the experimental results, it is confirmed that the stress distribution along the bottom of dam is largely affected by the location of fault. In downstream edge fault model, the stress concentrated at toe, and the failure strength remarkably becomes lower than no-fault model. Both central fault model and upstream fault model, the effect of fault to the stress distribution is small and failure strength is almost the same as no-fault model.
