ABSTRACT
In supporting the deep foundation pit of the sand-filled artificial foundation, it is difficult to describe its characteristics by the force and deformation law of the support in the conventional foundation pit. In this paper, numerical simulation and on-site monitoring are combined to analyze the stress and deformation characteristics of the internal support during the excavation of the foundation pit under the conditions of different support layout schemes. The change in the support axial force increases linearly in the short term. (2) At the same monitoring point, the horizontal displacement of the underground diaphragm wall is positively correlated with the change in the inner support axial force. (3) Adjusting the design scheme of the foundation pit support structure will lead to maximum axial force of the inner support and the deformation of the diaphragm wall.
