About YAMAGUCHI IBUKI
About 戸田建設
About MIYAKE TAKUYA
About 戸田建設
About 土木学会年次学術講演会講演概要集(CD-ROM)
About contact metamorphic rock
About internal crack
About natural ground
About geological survey
About velocity of elastic wave
About ultrasonic velocity
About safety evaluation
About tunneling
About hornfels
About 亀裂係数
About Junneling engineering in general
About 亀裂
About 質
About ホルンフェルス
About 地山評価