内田 一徳 | Professor Kobe University Kobe 657-8501. Manuscript Was Received For Review On November 27 1997. Wri

Professor Ibaraki University Ibaraki 316-8511.

Associate Professor Yokohama National University Yokohama 248-8501.

福井工業大学建設工学科

Professor Kobe University Kobe 657-8501. Manuscript Was Received For Review On November 27 1997. Wri

Professor, Osaka University, Yamada-oka 2-1, Suito, Osaka 565-0871.

Professor, Kobe University, Kobe 657-8501. Manuscript was received for review on November 27, 1997.