Abstract:By analyzing the load transmission mechanism of pressed-in pile in loess foundation,a kind of hyperbolic curve is proposed to fit the load transmission function between pile and its neighboring soil. Two parameters Kc and Ke are introduced to modify the c and E0 of soil by considering the influence of compacting effects caused by pressing-in of piles in loess. Based on test data of the 96 piles in Xi′an area with detailed soil and pile parameters and p-s curves,an experiential formula of Kc and the CPT resistance qc of the soil around pile base and the empirical relationship between Ke and concrete grade are established. The proposed method is validated through the comparison between the results of calculated and tested p-s curves.