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The anti-seismic analysis of large-scale underground caverns is always a difficult issue. When explicit dynamic finite element method(FEM) is adopted to perform time history analysis towards large-scale underground caverns, the consuming time is considerable and thus lowers the efficiency of project analyzes. To enhance the solving speed of explicit dynamic FEM, the hybrid method is presented based...
The long gallery type and cylinder type are the two main types of surge shaft in large scale hydropower underground complexes. The assessment method using FEM calculation results to analyze the structural stability of different types of surge shaft in large scale underground complexes is put forward. Firstly, the general FEM procedure to simulate underground excavation is proposed. Then, the FEM-based...
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