About OGAWA Y
About Osaka Gas Co. Ltd., Osaka, JPN
About KOIKE T
About Kawasaki Steel Corp., Chiba, JPN
About Soil Dynamics and Earthquake Engineering
About buried pipe
About Piping design and work
About Earth pressure,dynamic properties of soil,stress and deformations of ground
About 埋設
About パイプライン
About 巨大地震
About 構造設計