... Upstream Oil & Gas RMR Ryukyu Island Aydan reservoir geomechanics strength uniaxial compressive strength Tokashiki Reservoir Characterization relation rock mass property rock mass rock mass classification classification tensile strength Ryukyu limestone Kawamoto empirical...

... for evaluating the stability of rock cliffs and natural rock caves. Ryukyu limestone is widely distributed all over Ryukyu Islands and they form very steep cliffs along the shorelines of Ryukyu Islands. The toe of these cliffs is often eroded by sea waves and they result in overhanging rock cliffs. When...