The rock-socketed cast-in-place pile is used in a hydraulic dock in East Africa.The bearing stratum is strongly weathered rock and the socketed depth is 8 m under the pile tip of steel casting.The crimping of steel casting is found during drilling.Whole-process PDA test shows that the bearing stratum is hard,the transfer efficiency of energy is 92.4%，and the maximum stress of the steel casting pile is 220 MPa.The average set of last 10 blows is decreased as the designer requires and socketed depth increases to 13 m.The bearing stratum is completely weathered rock according to the new scheme and crimping completely disappeares.The engineering experience may serve as reference for the theoretical research and engineering practice of rock-socketed cast-in-place piling.