Deformation Analysis and Monitoring for Extra High Hydropower of 305 m

The engineering scale and construction difficulty are beyond imagination. Many technical indicators have exceeded the current specification. Firstly, the denatured state of the dam in active service was analyzed and summarized based on 1:1 prototype test parameters. Secondly, load set and load effect set were combined and the influence factors were determined by deterministic function and physical inference method. The coefficient of each factor was calculated by the measured data. An extra high arch dam deformation monitoring statistic model was finally established. Load effect set can be defined under a group of load set. It can be used to determine the working condition of the structure and monitor buildings. Thirdly, three-dimensional nonlinear finite element model was established and the incremental step difference algorithm was used by considering the weight of the dam and the outside water load. This will accurately simulate the state of the arch dam deformation. This article provides a meaningful reference for the exploration of similar projects in future.