Analysis of Fitting Q-S Curves of Single Piles by Integrated Exponential Function

Abstract:

Different from Previous solution，Least Square Model Solution of difference form of integrated exponential functional model is put forward to determine Parameters of integrated exponential function. Combining with field test, analyze the feature of fitted Q-S curve right by integrated exponential functional model. Then, discuss the reason of determining ultimate bearing capacity of single piles by the largest Curvature point of integrated exponential function. Last, For no broken single piles in field test，researched the feasibility of predicting ultimate bearing capacity of single piles and its top settlement by the largest Curvature point of Q-S curve，obtained conditions of predicting ultimate bearing capacity and limitations of predicting top settlement of no damaging single piles.