Based on the results of the experiment, a numerical analysis by means of FEM was implemented.

用试验结果和断裂力学分析校正了有限元分析程序。

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Newton Raphson method was introduced into the FEM analysis model in order to ensure that the solution of each iterative step would converge by means of satisfying some restrictive condition.

在有限元分析模型中引入了牛顿迭代法，以使每一时间步长的末端温度满足某一限制条件而平衡收敛。

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This paper carries out analysis on the numerical values in the construction of soft and weak rock tunnel by means of nonlinear FEM numerical value simulation method.

采用非线性有限元数值模拟的方法，对软弱围岩隧道施工进行了数值分析。

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