The normal displacement on the coupling surface which is stimulated by node force is calculated in ANSYS firstly.

首先在AN SY S软件中计算结构受结点力激励时外表面的法向位移；

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For the safety and normal usage of the city ground building, therefore it is extremely important to estimate the earth surface movement and displacement caused by tunnel construction.

为确保城市地面建筑的安全和正常使用，因此对隧道施工所产生的地表位移的预测极为重要。

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