Abstract
For design and construction of structures, it is required to get various geotechnical data on foundation. Generally, investigations using boring are done, and geotechinical characterizations of foundation are obtained at boring spots. As the number of boring is restricted for reasons cost and time, it is very hard to estimate the spatial distribution of geotechnical characterizations using such a few of boring data. Various spatial estimation techniques have been developed and examined. However, no efficient and convenient one has been developed. In this study, an efficient and convenient spatial estimation method is proposed using a new algorithm improved the SOM. The efficiency is shown by an example such that this proposed method is applied to a spatial estimation of permeability of bedrock.
