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Published in:
2007 | OriginalPaper | Chapter
Basic Concepts and Applications of Point Estimate Methods in Geotechnical Engineering
Authors : Helmut F. Schweiger, Robert Thurner
Published in: Probabilistic Methods in Geotechnical Engineering
Publisher: Springer Vienna
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A procedure for combining a point estimate method (PEM) and deterministic finite element methods for geotechnical analysis is presented. A brief description of the theoretical background is given and an illustrative example analysing a sheet pile wall supporting an excavation is presented to demonstrate the general applicability of the proposed approach. Finally the application to numerical analyses of tunnel excavation is discussed in some detail. A NATM tunnel construction is considered and the results obtained from the suggested approach are compared to the ones obtained from conventional finite element analyses. The results clearly reveal the applicability of the proposed concept for solving practical problems and it is argued that the validity of finite element analyses is extended by introducing stochastic properties of input parameters.