2019 Volume 6 Issue 2 Pages 45-52
The geotechnical engineering industry has taken an interest in three dimensional (3D) ground modeling more than before owing to recent prevailing of Construction /Civil Information Modeling (CIM). However, it is said that 3D ground model development, even only creation of 3D geological framework model of subsurface, takes still considerable time and cost due to special technique which requires qualified experts and geological knowledge. Therefore, it is important for practical geotechnical design engineers to find the way to create 3D models efficiently. The authors tried to develop 3D ground model of which dimension is approximately 2.8km x 1.8km with widely spaced borehole logs for conducting earthquake response analysis. We used 3D ground modeling system of ‘ Geomap3D’ (Toyoda and Nishikaichi, 2005) which has been developed as simple ground modeling system. In this report, the outline of developing 3D geological subsurface model is explained as an example of site specific study. Property values of each engineering unit are summarized as well based on literal values. It was found that 3D model could efficiently be developed by using this system in spite of limited number of borehole logs.
