Abstract：The study on the interaction laws between the frozen soil wall and its supporting structure is of great importance in the deep excavation. The difficulties in the application of the ground freezing method to deep excavation are presented firstly. The interaction laws between the frozen soil wall and its supporting structure after excavation and during creep period are obtained with numerical simulation elasto plastic and creep models. The results of elasto plastic model，without considering the creep properties of frozen soil，indicate that the release of loading by excavation is the major factor that leads to the deformation of the frozen soil wall and the liner. In this case the distributions of displacements are not closely related to excavation height，and the supporting structure has an appreciable restricting role，which prevents the frozen wall from displacing and rotating freely. However，during the creep period，besides the effect of the excavation，the creep characteristics of frozen soil，the exposed time and height have strong effects on the distributions of the stresses and displacements，which has been shown by the creep models. Therefore，it is suggested that all these factors should be comprehensively taken into consideration in engineering practice.
