Abstract
In this study consists of the following two topics, one is a basic consideration on the extended Kalman filter in parameter identification problems of road tunnel, and the other is estimated for a thermal behavior in tunnel-ground from identified parameters. In the former study, the extended Kalman filter which was incorporated with the one-dimensional finite element thermal analysis in order to identify unknown thermal parameters in ground.
In the latter one, the estimated tunnel-ground temperatures from identified parameters, compared with the observed temperatures of actual tunnel. Finally, numerical examples are worked out to demonstrate the usefulness of this method in identification of the thermal characteristics and estimation of thermal behavior in ground.
