通过对复合地基原体试验检测成果的分析 ,验证了碎石桩加密效果的规律。对于利用载荷试验成果确定碎石桩复合地基承载力的方法 ,进行了深入的理论分析和探讨 ,提出了对于碎石桩复合地基s/b的取值 ,不单要考虑岩性 ,同时要结合复合地基的含水量和饱和度 ,来更加准确的确定s/b的取值。建议对已排水疏干的碎石桩地基 ,s/b的取值应趋近干法施工的其他挤密桩之值。 Through the analysis of the test results of the original test of composite foundation, the law of the effect of gravel pile verification is verified. For the method of determining the bearing capacity of the gravel pile composite foundation by using the load test results, the in-depth theoretical analysis and discussion are put forward. For the s / b value of the gravel pile composite foundation, not only the lithology but also the composite Ground water content and saturation, to more accurately determine the value of s / b. It is suggested that the s / b value should be close to the value of other dry-laid compaction piles for the drainage and drainage of gravel pile foundation.