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For the purpose of getting a better understanding on failure mechanism of rock fracturing due to construction perturbation inside the rock slope at the right bank of Dagangshan Hydropower Station, southwest of China, a highprecision microseismic monitoring system was installed and source location data has preliminarily been investigated. The optimal design(More)
We propose a cyclic flattened Brazilian disc (FBD) testing method to measure the tensile fatigue properties of brittle rocks. Our method has obvious merits in its specimen preparation and experimental operation. Two parallel flattens are introduced in the disc specimen, which facilitate easily and uniformly loading the specimen without special loading(More)
In this paper, tuned mass dampers with optimal parameters for long span transmission tower-line system are investigated. Equations of motion for a structure-TMD system are derived, and the parameters of TMD, stiffness and damping are optimized, respectively. According to a real project, three-dimensional finite element models of both transmission tower and(More)
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