Abstract
In the general design problems, all information needed for design is collected in advance and the design is completed before the construction. However, since many kinds of uncertainties are inevitably involved in the results of design, it is far better from both view points of costs and safety in construction that we proceed with construction changing the previous design by using new information which can be obtained during construction. This advantage is specifically large in the earthwork problems because the change of design is comparatively easy. In the present paper, the process in which the previous design is changed by new information and the optimal design can be always led is called the “Dynamic Design Procedure” and formulated based on the Bayesian reliability prediction. The stability problem of an embankment constructed on a soft ground is taken as a concrete example.
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