Analysis of the Different Load Models in the Lining Segments of Shield Tunnel
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摘要: 地下结构的荷载分布计算是非常复杂的,针对上海某越江盾构隧道,采用梁—弹性铰—地基系统计算模型,就水土压力合算与分算、侧向土压力和水压力的分布形式等设计了几种荷载模式,并分别计算分析比较了管片衬砌结构在这些荷载模式作用下的内力分布和变形特性,并从中得出了一些有价值的结论。Abstract: This paper proposes a beam*.spring*.foundation system model to analyze the respond and deformation of the shield tunnel under different load models.Some load models composed of distribution of soil pressure and water pressure are discussed.Furthermore,based on the example of the shield tunnel through the Yangzi River,the distribution of inner force and deformation difference under different load models are discussed in details,and some valuable results are presented.
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Key words:
- shield tunnel /
- lining segments /
- load model /
- beam spring foundation system
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