Abstract ▼ AI-Helper

A numerical simulation by adopting a 3-D FEM model was carried out for analyzing the deformation and stress of a 10m long steel penstock wrapped in soft gasket. The feasibility of eliminating expansion joint between dam and powerhouse in Three Gorges Project was discussed. One of the penstocks in le...

A numerical simulation by adopting a 3-D FEM model was carried out for analyzing the deformation and stress of a 10m long steel penstock wrapped in soft gasket. The feasibility of eliminating expansion joint between dam and powerhouse in Three Gorges Project was discussed. One of the penstocks in left bank slope and another in the riverbed were studied in different seasons of closure. The penstock, dam and powerhouse were included in the model and the concrete placing process was simulated. A sensitivity analysis of some computational conditions was made. The results indicate that the penstocks in the left bank slope can be constructed without the expansion joint, but those in the riverbed are conditional. Closure in summer is more favorable for the penstock stress than closure in winter.

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