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	埋深对地下结构地震液化响应的影响
	刘华北 ; 宋二祥 ; LIU Huabei ; SONG Erxiang
	2010-06-07 ; 2010-06-07
关键词	地下结构 液化 埋深 underground structure liquefaction burial depth TU93
其他题名	Effects of burial depth on the liquefaction response of underground structures during an earthquake excitation
中文摘要	应用非线性液固两相体动力有限元方法研究饱和可液化土中地下结构在水平地震作用下埋深的响应。分析了地震液化情况下地下结构埋深对于结构上浮、加速度、水平位移以及响应结构内力的影响,讨论了非液化土中地铁地下结构地震响应随埋深的影响。结果表明,埋深的增加可以减少地铁地下结构由于土体液化所导致的结构上浮;同时,虽然地下结构地震作用所导致的内力随着埋深的增加有小幅度的上升,但由于深埋地铁地下结构的强度往往比浅埋的为高,因此在相同水平地震的作用下,浅埋地铁结构可能更加危险。; The different seismic responses of underground structures in liquefiable soil at different burial depths were studied using the nonlinear coupled finite element method. The effects of burial depth on the uplift behavior, acceleration, lateral displacement, as well as the internal forces in the structure were analyzed. The relationship between burial depth and seismic behavior of underground structure in non-liquefiable soils was also investigated for comparison. The results show that the uplift of underground structures is reduced with increased burial depth, and although the internal forces induced by horizontal earthquake motion increase slightly with increasing burial depth, underground structures with larger burial depths may be safer due to their higher strength.; 国家自然科学基金资助项目(50378050); 北京市自然科学基金资助项目(8011002)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/46335]
专题	清华大学
推荐引用方式 GB/T 7714	刘华北,宋二祥,LIU Huabei,等. 埋深对地下结构地震液化响应的影响[J],2010, 2010.
APA	刘华北,宋二祥,LIU Huabei,&SONG Erxiang.(2010).埋深对地下结构地震液化响应的影响..
MLA	刘华北,et al."埋深对地下结构地震液化响应的影响".(2010).

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