Laboratory testing on applicability of various geophysical methods for understanding of grout penetration in sedimentary rock

Matsui, Hiroya ; Namiki, Kazuto*; Suzuki, Kenichiro*; Noda, Masaru*

JAEA has conducting a contract study on grouting performance with METI. This study was examined the applicability of various geophysical methods for understanding of grout penetration in sedimentary rock by laboratory testing as a part of the study. The results suggested that the resistivity and shear wave velocity may be effective to understand a grout penetration in sedimentary rock if the thickness of grout material in a fracture is over several mm.