通过重型动力触探及复合地基静载试验的对比分析,着重对用重型动力触探击数评价柱锤冲孔夯扩法复合地基承载力进行了深入细致的研究.经过试验结果的回归分析,得出了用重型动力触探击数计算柱锤冲孔务扩法复合地基承载力的计算公式,给出了计算程序,并应用工程实例进行了验证.“,”The method of appraising the bearing capacity on the composite foundation of compacted-expanded method in column-hammer thrust boring in the number about the heavy dynamic penetration has beenstudied carefully by the analysis and compare of the heavy dynamic penetration and the static load test of composition foundation on single pile. The calculating formula for the bearing capacity has been put forward by theregression analysis, and checked by an example.