Due to an increase in developments that are concentrated in urban areas, excavation in building construction has deepened and widened. Consequently, it has become more critical to consider the influence on neighborhood and public nuisance during construction. Underground works occupy large part of construction costs and period, thus being regarded as most important. This study presents planning of excavation works in building construction at the early stage. The authors have suggested the following three design models for planning of retaining walls: 1) Design model with discriminant analysis; 2) Design model with neural network; and, 3) Design model with experience logics, and have identified the accuracy of design models through comparison.
