So it becomes one of the key techniques on dynamic control for settlement distortion that how to back-analyze parameters of ground in time base on field test data.

因此，如何及时根据施工现场实测沉降资料反分析地基土参数来预测后期沉降，已成为沉降变形动态控制的关键技术之一。

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On the base of a large number of relevant papers and literature, the paper studied more in-depth on the ground settlement caused by shield tunneling.

论文在收集并阅读大量相关文献和资料的基础上，对盾构隧道施工地表沉降进行了较为深入的研究。

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By calculation the adoption of different foundation form to control the difference in settlement of the foundation. To ascertain te reasonable treatment plan of ground base and the foundation form.

对采用不同的基础形式来控制基础的差异沉降进行了计算比较。

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