EXPERIMENTAL UNDERGROUND EXCAVATIONS IN SEDIMENTARY SOFTROCK AT SAGAMIHARA.

Keywords: TOKYO UNIVERSITY, JAPAN RAILWAY TECHNICAL, RESEARCH INSTITUTE, TOKYO CONSTRUCTION, ROCKS, SOFT, SEDIMENTARY, EXCAVATIONS, UNDERGROUND, EXPERIMENTS, SHAFTS, TUNNELS, UNFRACTURED, UNWEATHERED, MUDSTONE, GROUND, BEHAVIOUR, MONITORING, STRAIN, TESTS, DEFORMATION, TRIAXIAL, COMPRESSION, ELASTIC, YOUNGS MODULUS, STIFFNESS, SIMULATION, STRENGTH, DEPOSITS, GEOLOGY, SEISMIC, SURVEYS, UNCONFINED, ULTRASONIC, THICK, PRESSUREMETERS, OEDOMETERS, INSTRUMENTS, INSTRUMENTATION, ANISOTROPY, SAGAMIHARA, JAPAN, ASIA