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地下结构的内力与变形与建造的过程密切相关 ,但是传统的简化方法是不够的 ,有必要采用适应性较强的有限元法。针对盾构隧道施工过程中的施工步骤、管片与土层接触面以及开挖过程中地应力释放等多方面进行了有限元模拟 ,并针对盾构施工对临近的影响进行了计算与分析 ,结果较为满意。本文能够为隧道衬砌的设计以及相邻环境影响分析提供有益的参考
The internal force of underground structure is closely related to the deformation and the construction process, but the traditional simplified method is not enough, so it is necessary to adopt the more adaptable finite element method. The finite element simulation is carried out for the construction steps of the shield tunnel construction process, the contact surface between the segment and the soil layer and the release of the earth stress during the excavation. The influence of the shield construction on the adjacent is calculated and analyzed. The result is more satisfactory. This article can provide useful reference for the design of tunnel lining and the analysis of the impact of adjacent environment