Abstract
A case study is presented on the use of the finite element analysis program, ADINA, as an aid in the design of an elevator shaft to be located in the dose proximity to an existing penstock tunnel. The excavation for the shaft may create over-stressing or excessive displacements of the existing tunnel lining which would be undesirable. ADINA was used to find stress and displacement vectors. Difficulties of analyzing a large sized ‘ADINA’ model to find those vectors were resolved by using PATRAN software and mixing of the linear and nonlinear elements.
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