The comparative tests of compaction - under reamed bored piles and column bored piles at same sites separately in jiaxing and huzhou city of province zhejiang were studied through self balanced method 本文在采用自平衡法静载荷试验的基础上，分别对浙江嘉兴和湖州两个工程中的同一场地挤扩支盘灌注桩与普通直孔灌注桩进行对比试验研究。
