软土中浅埋地铁车站结构的抗震性能分析  

Analysis of Earthquake-resistant Capacity of Shallow-buried Subway Station Structures in Soft Soil

作　　者：林利民[1] 陈健云[1] 

机构地区：[1]大连理工大学海岸与近海工程国家重点实验室,辽宁大连116024

出　　处：《防灾减灾工程学报》2006年第3期268-273,共6页Journal of Disaster Prevention and Mitigation Engineering

基　　金：辽宁省自然科学基金资助项目(20022130)

摘　　要：两侧采用粘弹性人工边界,底部为全约束,建立合理的土与地下结构相互作用模型,通过有限元软件分析,比较研究土—地下结构相互作用分析中埋深、土层分布和结构类型等因素对地下结构抗震性能的影响。结果表明,埋深对地下结构影响比较大,选择合适的地质土层和结构类型能大大提高结构抗震性能。A reasonable model is proposed of soil-underground structure interaction with viscous-elastic artificial boundary condition on both sides and with restrictions at the buttom. By using FEM software,the effects of some key factors, such as the buried depth, the condition of soil layers and the styles of structure, on the earthquake-resistant capacity of underground structure are studied. It is demonstrated that the buried depth has great effects on the seismic response of underground structure, and the earthquakeresistant capacity of structure can be improved greatly if the soil layers and type of structure are appropriately selected.

关 键 词：地下结构 抗震性能 数值模拟 人工边界 

分 类 号：TU352.1[建筑科学—结构工程]