Modeling of First Filling Settlement in Gotvand Dam

In this paper, a new collapse prediction framework is proposed, involving introduction of a stress dependent collapse coefficient which is directly obtained from results of triaxial tests. Within the proposed framework, the collapse settlement of rockfill dams can be simulated for first impoundment analysis. To make an appropriate choice of the model parameters, some large-scale triaxial collapse tests are numerically modeled employing the proposed framework and the parameters are used for simulation of collapse settlement of Gotvand, 178 m high rockfill dam, and verified by field measurements and monitoring data. Verification of the model has shown that the proposed model could properly simulate the collapse phenomenon and provide results which are in good agreement with field data

Keywords:

Gotvand Dam , Collapse Settlement , Rockfill , Collapse coefficient