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许多工程的地表变形属于大变形范畴。本文以地表大变形为研究对象，把非线性连续介质力学的有限变形几何学应用到地表变形分析中，为精确研究地表变形状态信息提供了理论依据和数据处理方法。
Many projects of surface deformation belong to the category of large deformation. In this paper, the large deformation of the surface is taken as the research object. The finite deformation geometry of nonlinear continuum mechanics is applied to the analysis of surface deformation, which provides a theoretical basis and data processing method for accurately studying the deformation information of the surface.