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Rolling-induced inner force in lining of DOT shield tunnel

机译:DOT盾构隧道衬砌中滚动引起的内力

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Double-O-Tube (DOT) shield machine is more likely to roll during DOT tunnel construction and rolling correction operation is always conducted during construction. The inner force in lining will be changed during the process of rolling correction. In this paper, finite element method is adopted to analyze the inner force in lining caused by rolling correction during construction. The results indicated that it is much different between the inner forces in lining by considering rolling correction operation or not. With the rolling angle increasing, the inner force in some point increases and in some other points decrease. Therefore, the reasonable design is that the redistribution of inner force in lining during construction should be considered.
机译:双O型管(DOT)盾构机在DOT隧道施工期间更容易滚动,并且在施工期间始终进行滚动校正操作。在轧制矫正过程中,衬里的内力会发生变化。本文采用有限元方法对施工过程中滚动修正引起的衬砌内力进行了分析。结果表明,通过考虑是否进行轧制矫正操作,衬砌中的内力之间存在很大差异。随着侧倾角的增加,内力在某些点增加而在其他一些点减少。因此,合理的设计是在施工过程中应考虑衬砌内力的重新分配。

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