A dam may be damaged by occasional extreme loads such as major earthquakes or terrorist attacks during its service. According to the needs of emergency assessment, this paper studies a rapid damage identification method for location and degree in concrete arch dams which is based on dynamic characteristics data, using wavelet transform, packet decomposition, BP neural network D-S evidence theor...

At present, the analysis of monitoring data for stress dam is mostly based on statistical models. However, some arch dams have considerably large error, it hard to build a reasonable statistic model data. In order solve practical application problem project, this paper calculates elastic modulus by using finite element displacement hydraulic component separated from horizontal displacement. The...

Cracked concrete arch dam’s behavior due to moderate earthquake magnitude and water pressure variation was investigated. Plain used cast the models with 45 Mpa design strength. A shake table has been planned, manufactured, built create a dynamic testing facility. The experimental work included of four scaled-down dams’ models, which is divided into two groups, each group contains different degr...

The 300 m-level high arch dams built in China have different degrees of valley-narrowing deformation the initial impoundment. This unexpected phenomenon may increase long-term safety risk dams. There are several explanations for phenomenon, and one explanations—that it is caused by a drop bedrock temperature—is still under debate. In this paper, coupled thermo-hydromechanical (THM) simulations ...