Analysis of Stress Characteristics of Retaining Structure of Deep Foundation Pit
Because of the simple calculation and fewer parameters,the model of the elastic brace based on the plane strain theory was commonly used to design and calculate the retaining structure of the foundation pit in the current specification.In this paper,according to the engineering field monitoring results of the open-cut foundation pit of the Harbin-Mudanjiang Passenger Dedicated Line,the stress and the characteristics of the retaining structure in the process of the excavation were analyzed.The measured stress and the calculation result were compared and analyzed to obtain the safety factors Fs corresponding to the measured and specification,respectively.This analysis hopes to provide useful references for the design and construction of similar retaining structures of foundation pits in local areas.
foundation pit monitoringmodel of elastic bracesafety factor