Geology and Initial Situ Stress in the Shintakase-gawa Underground Powerhouse

Abstract

This report describes the result of geological survey and the initial in situ stress measurement in the Shintakase-gawa Underground Poworhouse.
As the result, it has been found that the tectonic stress inferred from the cojugate fault, has been in close agreement with the initial in situ stress measured by the overcoring method.