地下铁道震害与震后修复措施

Seismic Damage and Restoration Measures of Subway

在 1995年日本阪神地震中 ,地下铁道第一次遭到严重毁坏 ,尤其是大开站震害最为严重。本文对地下铁道车站、地下铁道明挖区间隧道和盾构隧道的震害特点作了全面总结。随后 ,依据震害的表现形式 ,对车站结构震害原因进行了简单分析。根据文中陈述 ,得出结论 ,中柱和混凝土管片是地下铁道结构的抗震薄弱环节 ,对其抗震性能的设计应引起重视。最后 ,对地下铁道的震后修复措施亦有所介绍。

In 1995 Hyogoken Nambu earthquake of Japan, subway structure was firstly severely damaged, especially Daikai subway station. This paper comprehensively summarizes the characteristics of seismic damage to subway structure, including subway stations, cut-and-cover tunnel lines and shield tunnel lines. It is concluded that central columns and R.C. segments of subway are week in resistance against earthquake and an attention must be paid to aseismic design. Judging from the damage pattern, structure damage mechanisms are also analyzed. Finally, the measures of restoration work of subway structures are introduced.