Original Paper (Vol.55 No.5)

Influences of Material Properties on Analogue Model Experiments of Geologic Structures
Y.Yamada, K.Kaneda and T.Matsuoka	452
An Estimation Method of In-situ Rock Masses by Characteristic of Electric Resistivity for Jointed Rock Mass Model
Makoto NAKAMURA and Harushige KUSUMI	458
Assessment of Cost Variation Risk Caused by Water Inrushing in a Tunnel Excavated in Discontinuous Rock Mass
Hiroyasu OHTSU, Kazuo SAKAI, Yuji IJIRI, Masato SHIMONO and Takayuki MOTOSHIMA	464
Simulation Analysis for Shear Behavior Mechanism of Rock Joint Using Distinct Element Method
Harushige KUSUMI, Shintaro TATSUMI, Saori TAKAFUJI and Masafumi MATSUOKA	471
Acoustic Emission Behaviors in Rock Failure Process
Kenji AOKI, Yoshitada MITO, Takayuki MORI and Toshio MAEJIMA	477
Shear Strength of Ohya Stone Evaluated by In-situ Rock Mass Triaxial Test
Kazuo TANI	483
Effects of High Temperature on Strength, Deformation, Thermal Properties and Creep of Rocks
Naoki KINOSHITA and Yoshinori INADA	489
Creep Analysis of Cavern in Soft Rock Mass and Study on Effect of Shotcrete
Hidenori YOSHIDA, Ikuro NOZAKI, Kazuyuki KATO, Yuji SEKINE, Toshihiro KOYAMA, Yasumasa SUZUK, and Takeo KANEKO	495
Mechanism of Discontinuous Behavior of Rock Mass during Underground Cavern Excavation
T.Yoshida, Y.Ohnishi and S.Nishiyama	501
On the Possibility of Identifying Nonlinear Constitutive Laws by Back Analysis
Shinichi AKUTAGAWA, Akiko HASEGAWA, Ryo YAMASHITA, Kunifumi TAKEUCHI, Jaeho LEE and Shunsuke SAKURAI	507
Numerical Simulation of a Large Scale Slope Failure Considering Reduction of Stiffness and Strength over Time
Shinichi AKUTAGAWA, Hitomi OTAZAWA and Shunsuke SAKURAI	515
Tilt Measurement of Rock Mass around Underground Oil Caverns
Kunihiro JODAI, Kazuo UEDE, Satoshi HIROOKA, Hiroshi KANBARA, Susumu TAKEMURA, Toshifumi MATSUOKA and Kazuhiko TSUKADA	523

Lecture (Vol.55 No.5)

Actuality and Scope on Simulation of Heat Treatment‡T:Material Properties and Database
Kasuo OKAMURA	529