Comparative analysis of bearing capacity of CFG single pile by centrifugal model tests and field tests

For the soft soil foundation slipped in the storage yard of a wharf, the composite foundation with CFG pile net is used for reinforcement in typical zone. The centrifugal model tests and field static load tests are carried out to study the bearing behavior of CFG pile. The bearing deformation difference of single pile between the centrifugal model tests and the field static load tests is compared and analyzed. The test results of the vertical ultimate bearing capacity of single pile are compared with the calculated ones by the method recommended by China's technical code for composit foundation. The results show that there are obvious differences between the Q-s curves of the centrifugal model tests and field static load tests. The ultimate bearing capacity of single pile of the centrifugal model tests is greater than that of the field static load tests, and their maximum test loads are basically the same. The calculated values of the vertical ultimate bearing capacity of single pile are lower than those of the centrifugal model tests and field static load tests.