地下铁道抗震研究的现状与探讨

Probe into Current Status of Anti-seismic Study on Subway

地下铁道建设的蓬勃发展使地铁的抗震设计问题凸显出来。在对地下铁道震害分析的基础上,总结了震害发生的机理,并进一步对国内外地下铁道抗震研究的现状做了较为详尽的论述。分析表明:城市地铁作为城市轨道交通的重要组成部分,应纳入抗震设防的重要范畴;地下铁道设计规范中急需编入有关抗震设计的内容;根据对地下铁道震害机理的详细探讨,在具体分析中,应该按照不同的设计阶段来选用不同的设计方法。以上结论可为地下铁道抗震设计提供依据。

Anti-seisrnic problems are clearly exposed with the boom of the metro construciton. Based on the analysis of earthquake disasters of subway, the occurrence mechanism of earthquake disaster is summarized. Furthermore, current status of antiseismic study on subway is described in detail. The analysis indicates that as an important part of urban mass transit, metro should be brought into the anti-seismic category; and relevant content of anti-seismic design should be compiled into the metro design specification as soon as possible. Based on the detailed discussions on the occurrence rnechanism of earthquake disaster, different design methods should be selected at different design stage in practice. Referring to the obtained conclusions, better anti-seismic design of subway could be made.