技術開発 (5)

[VI-902] Measurement precision of rock mass properties using a small colliding ball test on rock specimens.

*Ryousuke Tsuji¹, Issei Sato¹, Hideki Nagatani¹, Kenichi Kawano¹, Teru Yoshida¹, Katsutoshi Fujisaki¹, Suguru Shirasagi¹, Takeshi Ikejiri² (1. KAJIMA CORPORATION, 2. CENTRAL GIKEN)

Keywords:colliding ball test, In-situ testing, Elastic modulus, Contact time, Uniaxial compressive strength