Zhihui Xiong*, Lei Kou, Jinjie Zhao, Hao Cui, Bo Wang
CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.1, pp. 803-824, 2023, DOI:10.32604/cmes.2023.024833
Abstract Serious uneven settlement of the tunnel may directly cause safety problems. At this stage, the deformation of the
tunnel is predicted and analyzed mainly by numerical simulation, while the commonly used finite element method
(FEM) uses low-order continuous elements. Therefore, the accuracy of tunnel settlement prediction is not enough.
In this paper, a method is proposed to study the vertical deformation of the tunnel by using the combination
of isogeometric analysis (IGA) and Bézier extraction operator. Compared with the traditional IGA method, this
method can be easily integrated into the existing FEM framework, and ensure the same accuracy. A numerical… More >
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