Abstract：The analysis of soil arching is the first important issue for the design of piled embankments. An analytical model for soil arching within piled embankments is developed，which can consider the coupled effect of the embankment filling and soil consolidation. The calculated values of the stress concentration ratio using the proposed model herein are in good agreement with the field measurements. This demonstrates that the model can reflect the variation characteristics of soil arching with time. A further study of characteristics of soil arching and the neutral point of pile shaft during the embankment filling and the soil consolidation was also conducted. The results show that：(1) With the embankment filling，the stress concentration ratio increases and reaches a maximum value at the end of filling，then decreases about 15 percent of the maximum value and maintains nearly a constant value. (2) During the embankment filling and soil consolidating，the location of the neutral point of pile shaft descends firstly，then ascends till the end of embankment filling. With the continuous consolidating of soil，the depth of the neutral point becomes deeper，and at the end of soil consolidating，the location of the neutral point is unaltered. The obtained conclusions can provide valuable references to engineering design.
