品質管理 (1)

[VI-464] Development on evaluation technique of weathering degree of rock fracture using Borehole television image in dam foundation grouting

*Hayato Nonaka¹, Kazuhiko Masumoto¹, Masayuki Ishibashi¹ (1. Kajima Corporation)

Keywords:dam, dam foundation grouting, Borehole television image, weathering degree of rock fracture, three-dimensional rock permeability classification