Abstract
Borehole logs owned by Kochi prefecture and Kochi city are converted to digital data in Kochi ubiquitous demonstration project for disaster prevention. A database was developed for managing those digital data and borehole data published by Ministry of Land, Infrastructure, Transport and Tourism. A geotechnical model was constructed from borehole data and geotechnical map. A peak ground acceleration, measurement seismic intensity, liquefaction susceptibility and landslide susceptibility for the next Nankai earthquake were predicted by using seismic waveforms in seismic bedrock owned by Kochi prefecture. It was found that they could be predicted with high precision and high density by reusing geotechnical information and disaster information which administrative organs own. A unification of code for managing borehole logs, a standardization of XML format for 6th mesh geotechnical model, and a free reuse of geotechnical information were proposed based on the present project.
