pile anchor support;  displacement;  Optimize the design

An optimization design method based on the lateral shift control of pile top during construction is proposed, and an optimization design model is established. In this method, the lateral movement of the pile top during excavation of the foundation pit is taken as the optimization goal, and the distance from the anchoring point to the pile top is the optimization variable. The intersection point of the primary displacement and the quadratic displacement curve is used as the optimization point to determine the optimal position of the anchor, and then the pile anchor support structure is optimized. According to the above optimization design method and model, the optimization design system is developed using VB language, and the engineering case analysis is carried out, and the design results show that the optimization design system is feasible and the optimization design method and model are reasonable.