Abstract:Determining the values of the shaft resistances in practice relies mainly on the empirical approaches and secondarily settlement on the pile tests. From them,the analytical results usually have considerable errors. In terms of the sequence of building construction,the site investigations for two buildings supported by pile foundations are firstly introduced,and then the pile loading tests are presented on two different sites. According to the pile loading histories,the ultimate frictional resistance of pile shafts can be determined and figured out by dividing a load- settlement curve into three sections. The results from the pile test analysis are finally applied to the comparison of the two high-rise building settlements. The relationship between the mobilized shaft resistance and two-building settlement supported by the piles is evaluated;and the reasonableness of proposed method is validated.