About YAMADA TAKAAKI
About 東日本高速道路 建設・技術本部
About NAKATA MASAHIRO
About 中日本高速道路 技術・建設本部
About TONOGAITO MASAHITO
About 西日本高速道路 技術本部
About OTSU TOSHIRO
About 高速道路総合技術研究所
About トンネルと地下
About expressway
About road tunnel
About repair
About large scale
About renewal
About preventive maintenance
About variation
About tunnel lining
About uplift(phenomenon)
About road surface
About soundness
About deterioration(superannuation)
About rehabilitation management
About life cycle cost
About cost
About road network
About tunnel transformation state
About aging
About soundness
About 高速道路トンネル
About project cost
About large scale repair
About 覆工健全度
About 路面隆起
About Tunnel maintenance and incidental equipment,and others
About 高速道路
About トンネル
About 大規模修繕