介绍了桩承载力自平衡测试技术近 5年来在国内桥梁桩基检测中的应用情况 ,包括润扬长江大桥、苏通长江大桥、杭州湾跨海大桥、南京长江三桥等国家重点工程。被检桩最大桩径为 2 .8m ,最大桩长 12 5 m,最大承载力达12 0 0 0 t。检测结果直接用于工程实际中 ,充分发挥了大直径超长桩基的承载潜能 ,取得了显著的经济效益 This paper introduces the application of self-balance testing technology of pile bearing capacity in the detection of bridge pile foundation in China in recent 5 years, including such key national projects as Runyang Yangtze River Bridge, Sutong Yangtze River Bridge, Hangzhou Bay Bridge and Nanjing Third Yangtze River Bridge. The maximum diameter of pile to be inspected is 2. 8m, the maximum pile length is 12 5m, and the maximum bearing capacity is 12 0 0 t. The test results are directly used in engineering practice, giving full play to the bearing potential of large-diameter extra-long pile foundations and achieving significant economic benefits