PUSHOVER ANALYSIS ON ROCK ANCHOR FOUNDATION FOR WIND TURBO-GENERATOR AND STRESS STATE MONITORING

The finite element pushover analysis on a rock anchor foundation of a wind turbo-generator located at Guo Dian Tie Ling development zone is numerically performed by using ABAQUS of a large general-purpose software. The mechanics characteristics of the rock anchor foundation are discussed and the stress states are compared with a traditional gravity foundation, meanwhile, the numerical results are compared with the received data from the PZT-based structural health monitoring system installed in the foundation. The results show that the new-type foundation has greater advantages than those of a traditional one and it may completely replace the traditional gravity foundation in the future. Furthermore, the structural health monitoring system is operating well and the foundation works in a good condition.