在单桩竖向静载荷试验中 ,对 Q— s曲线曲率变化不规则、沉降过程异常及桩顶总沉降量较邻近桩明显偏大、回弹率较邻近桩明显偏小的桩 ,应复查其桩身完整性。若确认为其桩身断裂 (指桩身开裂、缩颈、夹泥、蜂窝、离析、混凝土低强度区等缺陷贯穿截面 ) ,则在检测报告中就不应依据现行规范提供极限承载力 In the vertical static load test of single pile, the curvature of Q-s curve is irregular, the settlement process is abnormal and the total settlement of pile top is obviously larger than the adjacent pile, and the pile with lower recovery rate is obviously smaller than the adjacent pile. Its pile integrity. If it is confirmed that the pile body fracture (referring to the pile body cracking, necking, mud, honeycomb, segregation, low strength concrete and other defects through the cross section), then the test report should not be based on the existing code to provide the ultimate bearing capacity